Shell-shaped oil inlet rotor shaft design for cooling the engine and bearings.

Abstract

Lubricant distribution system, including: a shaft with a shell-shaped portion having a plurality of corrugated recesses arranged to receive fluid and distribute the fluid onto the bearings of a traction motor, the radii of the corrugated recesses varying; and a multitude of distribution holes arranged near the perimeter of the shell-shaped part.

Description

TECHNICAL AREA

[0001] The present description refers generally to a rotor that has a shell-shaped section. The recesses of the shell-shaped section collect the incoming oil within a defined radius and direct it into the distribution holes and channels of a rotor shaft. The recesses may be incorporated into the rotor material. The rotor contains no internal lines or conduits for transporting or distributing the fluid. BACKGROUND AND DETOUR

[0002] Vehicles, such as electric vehicles, can contain a drive unit with a rotor and a stator. An electrified vehicle, such as a hybrid vehicle or a fully electric vehicle (EV), can use an electric machine, such as a motor, to propel the vehicle in a particular direction. The vehicle can use an electric machine as a motor or as a generator. The electric machine can comprise a rotor and a stator. The stator can be rotaryally coupled to an output of the electric machine, such as a shaft or drive. The electric machine can be an AC machine in which magnets are built into the rotor, as in an internal permanent magnet motor (IPM). In an IPM, each magnetic pole of the rotor is typically generated by permanent magnets around or within the rotor. An alternating current in the material windings of a stator around the rotor core, for example,In the wiring, forces can be exerted on the magnets. The electromagnetic force generated by the windings can cause a shaft and the other components of the rotor to rotate around an axis. The rotation of the rotor converts the electromagnetic energy into rotational energy in the form of torque. Alternatively, the electric machine can be an AC motor that is not an IPM, such as a motor with an alternating current generated by a winding through the rotor and permanent magnets contained in or physically coupled to the stator. Alternatively, the electric machine can also be a DC motor and / or generator, rather than an AC motor and / or generator.

[0003] In the aforementioned cases of electric machines, the electromagnetic interactions between the stator windings and the rotor magnets can generate waste heat in addition to producing torque. This heat can accumulate in the rotor material. The magnets and windings of the electric machine are the main heat-generating components of the assembly. If the thermal energy exceeds a certain point, the efficiency of the electric machine can decrease and / or the rotor and other components can be damaged. To prevent the waste heat from impairing the function of the electric machine, a cooling and lubrication system can be employed. The coolant can be circulated through the rotor core via multiple passages to dissipate waste heat and equalize temperature differences across the rotor.Many rotor designs may include an internal channel or multiple channels that transport coolant into the rotor's interior. Similarly, the internal channel or channels may distribute the coolant throughout the rotor or be in fluid contact with a variety of holes, passages, and / or other volumes within the rotor that can distribute the fluid throughout the rotor. These holes may be distribution holes. A coolant, such as oil, may also act as a lubricant for components housed within or surrounding and supporting the rotor. For example, coolant may be distributed through holes or passages, such as distribution holes, to lubricate the shaft bearings.

[0004] In some cases, using a conduit to transport coolant or other fluids can lead to backflow and overfilling. For example, if the incoming oil volume is greater than the volume of the internal conduit, fluid can backflow or overflow into the rotor. Backflow and / or overflow of fluid into the rotor can cause a short circuit in the electric machine. Furthermore, backflow and / or overflow can cause acute or chronic damage to a conduit or other components or features of the rotor and electric machine assembly. Removing the internal conduit(s) can prevent backflow or overflow into the rotor. The rotor can, for example, be hollow and have a central passage or cavity into which the fluid can be directed.The cavity or passage can distribute the fluid to a variety of holes, passages, and / or other volumes within the rotor, which can then distribute the fluid throughout the rotor. However, it can be difficult to guide the incoming fluid from the cavity or passage to the multitude of holes, such as the distribution holes. The fluid may spread across the internal surfaces of the cavity or passage, resulting in a delay in distribution or fluid residue within the passage. Additionally, fluid may splash into the cavity or passage, leading to power losses during rotation.

[0005] The inventors recognized potential problems with such systems and developed a lubrication system comprising: a shaft with a shell-shaped part having several corrugated recesses designed to receive fluid and distribute the fluid to the bearings of a traction motor, the radii of the corrugated recesses varying; and several holes arranged near the circumference of the shell-shaped part.

[0006] For example, the architecture of the cooling system in the rotor core allows for a uniform flow of coolant over each magnetic pole of the rotor. The shaft is hollow and contains a volume, such as a central cavity or a central passage. The volume contains an inner surface. The inner surface contains a corrugated portion. The corrugated portion comprises a multitude of recesses, which can have a multitude of different dimensions. All recesses of the corrugated portion can be arranged radially around a central axis or centerline of the shaft and the volume. A fluid filled into a recess can be prevented from splashing out by the curvature of the recess. Likewise, a fluid located in the recess can be directed by the curvature of the recess when a force, such as a centripetal force, is applied. It can have a multitude of holes, such as...Distribution holes may be present that can direct the fluid volume into contact with the inner surface and the corrugated section into contact with the fluid volume and the outer surfaces of the shaft. Each hole may have a first opening flush with the outer surface of the shaft and a second opening flush with the inner surface of the volume. Each second opening may be flush with the radii of a recess and open towards them. The curvature of the recess can collect fluid and direct it to the second opening of the hole. Furthermore, the deflection of the oil may be symmetrical, with all passages radiating around a central axis. For each passage directing the fluid in a second, opposite direction, a hole, such as a distribution hole, may be present that directs the oil in a first direction. Each hole may be arranged radially around a rotor with respect to the axis on which the rotor is centered.A central cavity may have a surface that directs the oil to the holes. The holes may be arranged in an alternating sequence around the centerline of the central cavity or passage. Additional symmetry can be added by the first and second end plates, which direct the coolant flow to an outer passage. This symmetry can increase the uniformity of the coolant temperature within the core's passages.

[0007] It should be understood that the above outline serves to present a selection of concepts in simplified form, which are further explained in the detailed description. It does not serve to identify essential features of the claimed subject matter, the scope of which is clearly defined by the claims following the detailed description. Furthermore, the claimed subject matter is not limited to implementations that overcome all the disadvantages mentioned above or in any part of this disclosure. BRIEF DESCRIPTION OF THE FIGURES Fig. Figure 1 shows an example of a schematic representation of a vehicle that may contain an electric machine as defined in the present disclosure. Fig. Figure 2 shows a first side view of an arrangement for an electrical machine as defined in the present disclosure. Fig. Figure 3 shows a second view, which is a sectional view of an arrangement for an electrical machine as defined in the present disclosure. Fig. Figure 4 shows a third view, which is a side view of one wave of the arrangement. Fig. Figure 5 shows a fourth view, which is a side view of the wave of the arrangement. Fig. Figure 6 shows a fifth view, which is a side view of the wave of the arrangement. Fig. Figure 7 shows a sixth view, which is a sectional view showing the wave of the arrangement including its internal features and components. Fig. Figure 8 shows a seventh view, which is a sectional view showing the wave of the arrangement including its internal components, such as a multitude of recesses and distribution channels. Fig. Figure 9 shows an eighth view of a first area of ​​the wave with a distribution hole and a distribution channel. Fig. Figure 10 shows a ninth view of a second area of ​​the wave with a distribution hole and a distribution channel. DETAILED DESCRIPTION

[0008] The following description refers to a fluid distribution system for the shaft of an electric machine. The fluid is a working fluid that can be transported through the shaft and the components of the electric machine. The working fluid can be a coolant and / or a lubricant, such as oil. The fluid distribution system can be a coolant distribution system and / or a lubricant distribution system, such as an oil distribution system. The electric machine can be part of a larger assembly that includes a housing, a series of passages that can be in fluid communication with the shaft's fluid distribution system and the electric machine, and a variety of bearings and bearing arrangements that can support and be arranged around the shaft. The housing can contain a variety of sections, with a first section potentially housing the electric machine.An electric machine can comprise a shaft, a stator, and a rotor. The rotor can be rotatably coupled to the shaft, so that the shaft rotates with the rotor when the rotor turns. The shaft can be a rotor shaft for the electric machine.

[0009] The shaft can be hollow and have a central volume. The central volume can be centered around a centerline of the shaft. Likewise, the central volume can be centered around the axis around which the shaft may be centered. The central volume can be referred to as a central cavity or a central passage. The central volume can extend through the shaft longitudinally along a central axis. The central volume can be open to the outside of the shaft at opposite ends, for example, via a first opening at a first end of the shaft and a second opening at a second end of the shaft. The first end of the shaft can accommodate an appendage of a rotating element to rotatably couple the shaft to the rotating element. The second end of the shaft can accommodate working fluid from the series of passages contained in the arrangement separate from the shaft.

[0010] The central volume comprises an inner surface. This inner surface contains the corrugated portion. The corrugated portion can be defined as a section of the shaft that has at least one repeating pattern of a variety of rounded or convex recesses, such as semicircular recesses. The corrugated section can contain a variety of recess types, each type of recess having different dimensions, such as radii, than other types of recesses. The recesses can also be referred to as notches. All recesses can be arranged symmetrically with respect to each other, with each recess of a given recess type being symmetrical to the other recesses of that type. The recesses of the corrugated portion can be arranged radially around a central axis or centerline of the shaft and the volume.The recesses can alternate in a row around the center line of the central cavity or passage.

[0011] The shaft can have a variety of holes, such as distribution holes. The distribution holes can couple the inner surface and the corrugated edges of the recesses, which are in fluid contact with the outer surfaces of the shaft. Each hole can be arranged radially around a rotor with respect to the axis on which the rotor is centered. The holes can alternate in a sequence around the centerline of the central volume. Each distribution channel can have a first opening flush with the outer surface of the shaft and a second opening flush with the inner surface of the volume. Each second opening can be flush with the radii of a recess and open towards it. The openings to the distribution channels can be holes.Some of the holes can direct fluids from the corrugated section and the inner surface to an outer surface that is complementary to a bearing or bearing assembly, the bearing or bearing assembly being arranged around and supporting the outer surface. Fluid can be directed from the outer surface for the lubrication and / or cooling of the bearing or bearing assembly. Fluid can also be directed from the outer surface for the lubrication and / or cooling of the rotor of an electric machine.

[0012] Within the radius of a recess or recesses, fluid splashing can be prevented by the curvature of the recess(s). Similarly, when a force, such as a centripetal force, is applied, the fluid, if located within the radius of a recess, can be directed by the curvature of the recess. The curvature of the recess can capture fluid and direct it toward the second opening of the hole, which is complementary to the recess. Furthermore, the oil deflection can be symmetrical, with the distribution holes arranged radially around the centerline of the shaft.

[0013] Fig. Figure 1 shows an example of a schematic representation of a vehicle that may contain an electric machine as defined in the present disclosure. Fig. Figure 2 shows a side view of an arrangement for an electrical machine as defined in the present disclosure. The arrangement of Fig. 2 comprises a housing with a multitude of sections that can accommodate and / or house an electric machine, a differential and a set of axle half-shafts. Fig. Figure 3 shows a sectional view of an arrangement for an electric machine of the present disclosure, including a stator, a rotor, and a shaft that can be driven by the rotor. The electric machine of Fig. 3. The drive motor can be from Fig. 1. The section view in Fig. Figure 3 shows components of a fluid distribution system that can be fluidically coupled to the shaft to transport working fluid, such as oil, for lubrication and cooling of the shaft and other components of the assembly. The sectional view of Fig. 3 can be a line of Fig. 2 correspond. Fig. Figure 4 shows a side view of an exemplary wave of the present revelation. The third view of Fig. Figure 4 shows a passage of the wave as well as features of an opening of the wave that can receive an output. Fig. Figure 5 shows a side view of the shaft in its isolated state. Fig. Figure 6 shows a side view of the shaft in an insulated state. The side views of the Fig. Figures 5-6 show externally visible features of the shaft, such as a multitude of webs, grooves, outer surfaces, and distribution holes. The side view of Fig. 5. This can be a vertical view, and in the side view of... Fig. Figure 6 is a side view of the wave.

[0014] Fig. Figure 7 shows a cross-sectional view of the shaft. Fig. 4-6, including a plurality of sections of the inner passage with different diameters and the corrugated section, including the recesses and their respective dimensions, of the present disclosure for fluid distribution. Fig. 7 can be a line of Fig. 5-6 correspond. Fig. Figure 8 shows a sectional view of the shaft, including internal components such as a variety of recesses. Fig. Figure 8 shows an exemplary embodiment of the types of recesses and distribution channels that can be integrated into the corrugated section. Additionally, it shows... Fig. 8. How different types of distribution holes and distribution channels can be connected to a corresponding type of recess in fluid communication. Recesses that differ from another type of recess can have different dimensions. Likewise, distribution holes that are a different type of distribution hole can be connected to a different type of recess in fluid communication and have different dimensions. Fig. 8 can be a line of Fig. 5-6 correspond. Fig. Figure 9 shows an eighth view of a first region of the wave, which contains a distribution hole. Fig. Figure 10 shows a ninth view of a second region of the wave, which contains a distribution hole. The first and second regions of Fig. 9-10 can be from the in Fig. correspond to the 7 areas presented.

[0015] It is understood that the specific arrangements and systems shown in the accompanying drawings and described in the following description are exemplary embodiments of the inventive concepts defined herein. For the sake of clarity, the drawings are described together. Therefore, identical elements can be designated with the same reference numerals and need not be introduced again.

[0016] Fig. Figure 1 shows a schematic representation of an example configuration with the relative positioning of the different components. Fig. Figures 2-10 show example configurations with approximate positions. Fig. Figures 2-10 are shown approximately to scale, but other relative dimensions may also be used. Unless otherwise stated, the term "approximately" means plus or minus five percent of the range.

[0017] Furthermore, they Fig. Figures 1-10 show example configurations with the relative arrangement of the various components. If these elements are in direct contact with each other or directly coupled, they can be described as being in direct contact or directly coupled, respectively, in at least one example. Similarly, elements shown side by side or adjacent to each other can be described as being adjacent to each other or adjacent to each other, respectively, in at least one example. For instance, components that are in planar contact with each other can be described as being in planar contact. As another example, elements that are separated from each other, with only a gap between them and that have no other components, can be described as such in at least one case.In yet another example, elements that are displayed above / below each other, on opposite sides, or to the left / right of each other can be described as such, relative to one another. Furthermore, in at least one example, as shown in the figures, a topmost element or the highest point of an element can be referred to as the "top" of the component, and a bottommost element or the lowest point of the element can be referred to as the "bottom" of the component. The terms top / bottom, upper / lower, and above / below used here can refer to a vertical axis of the figures and be used to describe the positioning of elements within the figures relative to each other. Thus, in one example, elements displayed above other elements are arranged vertically above the other elements.As a further example, the shapes of the elements depicted in the figures can be described as such (e.g., circular, straight, planar, curved, rounded, beveled, angled, etc.). Furthermore, the depicted elements that intersect each other can be described as intersecting elements or mutually intersecting elements in at least one example. In addition, an element depicted inside or outside another element can be described as such. Finally, the components can be described with respect to the reference axes included in the drawings.

[0018] Features described as axial can be approximately parallel to a datum axis unless otherwise specified. Unless otherwise specified, features described as counter-rotating can be approximately perpendicular to the datum axis. Unless otherwise specified, features described as radial can circumferentially surround or extend outward from an axis, such as the datum axis, or a component or feature previously described as radial to a datum axis.

[0019] Features described as longitudinal can run approximately parallel to a longitudinal axis. Features described as lateral can run approximately parallel to a lateral axis. Features described as vertical can run approximately parallel to a vertical axis.

[0020] In Fig. Figure 1 shows a vehicle 100 comprising a powertrain 101 and a transmission 103. The vehicle 100 may have a front end 132 and a rear end 134, located on opposite sides of the vehicle 100. Objects, components, and features of the vehicle 100 described as being near the front may be closest to the front end 132 compared to the rear end 134. Objects, components, and features of the vehicle 100 described as being near the rear may be closest to the rear end 134 compared to the front end 132. The powertrain 101 comprises a propulsion engine 106 and a transmission 108. The propulsion engine 106 may be, for example, an internal combustion engine (ICE) or an electric motor and is operated to supply rotational force to the transmission 108. The transmission 108 may be any type of transmission, such as... B.A manual transmission, an automatic transmission, or a continuously variable transmission (CVT). The transmission 108 receives the rotational power generated by the drive motor 106 as input and delivers the rotational power to the transmission 103 according to a selected gear or setting. In addition to the drive motor 106, other drives may be present in the vehicle. If the drive motor 106 is an internal combustion engine, at least one second drive with an input to the transmission 108 may be present, and this second drive may be an electric machine such as an electric motor. For example, the vehicle 100 can be a hybrid vehicle if, in addition to the drive motor 106, there is one or more second drives with multiple torque inputs to the transmission 108. The vehicle 100 may have a longitudinal axis 130.The drive train 101 and the transmission train 103 can have a length parallel to the longitudinal axis 130.

[0021] The drive machine 106 can be powered by energy from an energy storage device 105. In one example, the energy storage device 105 is a battery configured to store electrical energy. An inverter 107 can be placed between the energy storage device 105 and the drive machine 106 and configured to convert direct current (DC) to alternating current (AC). The inverter 107 can include a variety of components and circuits with thermal requirements that affect the inverter's efficiency.

[0022] Vehicle 100 can be a commercial vehicle, a light, medium, or heavy commercial vehicle, a passenger vehicle, a vehicle not intended for road use, and / or an off-road vehicle. Additionally or alternatively, Vehicle 100 and / or one or more of its components can be used in industry, locomotives, the military, agriculture, and / or aerospace. In one example, Vehicle 100 is a fully electric vehicle or a vehicle with a fully electric operating mode, such as a plug-in hybrid vehicle. Thus, Drive Machine 106 is an electric machine. In one example, Drive Machine 106 is an electric motor / generator.

[0023] In some examples, such as in Fig. As shown in Figure 1, the transmission 103 includes a first axle assembly 102 and a second axle assembly 112. The first axle assembly 102 can be configured to drive a first set of wheels 104, and the second axle assembly 112 can be configured to drive a second set of wheels 114. In one example, the first axle assembly 102 is located near the front of the vehicle 100 and therefore comprises a front axle, and the second axle assembly 112 is located near the rear of the vehicle 100 and therefore comprises a rear axle. The transmission 103 is shown in a four-wheel-drive configuration, although other configurations are possible. For example, the transmission 103 can include rear-wheel drive or four-wheel drive. Furthermore, the transmission 103 can include one or more tandem axle assemblies.Thus, the transmission train 103 can also have other configurations without deviating from the scope of this disclosure, and those in . Fig. The configuration shown is for illustrative purposes only and does not represent a limitation. The vehicle can also include 100 additional wheels that are not coupled to the transmission 103.

[0024] In some configurations with all-wheel drive, such as in Fig. As shown in Figure 1, the transmission 103 includes a transfer case 110 configured to receive the rotational power supplied by the transmission 108. A first drive shaft 113 is driven by a first output 111 of the transfer case 110, while a second drive shaft 122 is driven by a second output 121 of the transfer case 110. The first drive shaft 113 (e.g., a front drive shaft) transmits the rotational power from the transfer case 110 to a first differential 116 of the first axle assembly 102 to drive the first set of wheels 104, while the second drive shaft 122 (e.g., a rear drive shaft) transmits the rotational power from the transfer case 110 to a second differential 126 of the second axle assembly 112 to drive the second set of wheels 114.For example, the first differential 116 is driven by a first set of axle shafts 118, which are coupled to the first set of wheels 104, and the second differential 126 is driven by a second set of axle shafts 128, which are coupled to the second set of wheels 114. It is understood that the first set of axle shafts 118 and the second set of axle shafts 128 can be arranged in a housing. The first drive shaft 113 and the second drive shaft 122 can be arranged to extend parallel to the longitudinal axis 130. In one example of a vehicle 100 configuration, the second drive shaft 122 can be centered about the longitudinal axis 130.

[0025] The first differential 116 can supply the vehicle 100 with a certain degree of front-wheel drive as part of the rotational power transmitted via the first drive shaft 113. Likewise, the second differential 126 can supply the vehicle 100 with rear-wheel drive as part of the rotational power transmitted via the second drive shaft 122. The first differential 116 and the second differential 126 can supply the vehicle 100 with front-wheel drive and rear-wheel drive, respectively, as part of an all-wheel drive mode.

[0026] The adjustment of the transmission 103 between the different modes, as well as the control of operation within each mode, can be based on a vehicle control system 154, including a controller 156. The controller 156 can be a microcomputer, including components such as a microprocessor unit, input / output connectors, an electronic storage medium for executable programs and calibration values ​​(e.g., a read-only memory chip), working memory, diagnostic memory, and a data bus. The storage medium can be programmed with computer-readable data representing instructions that can be executed by a processor to perform the procedures described below, as well as other variations that are expected but not explicitly listed. In one example, the controller 156 can be a powertrain control module (PCM).

[0027] The controller 156 can receive various signals from sensors 158, which are connected to different areas of the vehicle 100. These sensors 158 can include, for example, sensors on the drive motor 106 or another drive for measuring drive speed and drive temperature, a pedal position sensor for detecting when a pedal is actuated by the driver, such as an accelerator or brake pedal, speed sensors on the first and second sets of wheels 104, 114, etc. Vehicle acceleration is directly proportional to the position of the accelerator pedal, e.g., the degree of actuation. After receiving the signals from the various sensors 158... Fig. 1. The controller 156 processes the received signals and uses various actuators 160 of the vehicle 100 to adjust the operation of the powertrain based on the received signals and the instructions stored in the controller 156's memory. For example, the controller 156 can receive a signal indicating that the brake pedal has been pressed, signaling a desire to reduce the vehicle speed. In response, the controller 156 can command operations such as shifting the gears of the transmission 108. Alternatively, the gears of the transmission 108 can also be shifted manually, for example, if the transmission 108 is a manual transmission.

[0028] In some examples, the vehicle 100 can additionally or alternatively be a hybrid vehicle that includes both a motor and an electric machine, each configured to supply energy to one or more of the first axle assembly 102 and the second axle assembly 112. For example, one or both of the first axle assembly 102 and the second axle assembly 112 can be driven by the power from the electric machine in a first operating mode in which the electric machine is not operated to supply power (e.g., a pure motor mode), by the power from the electric machine in a second operating mode in which the motor is not operated to supply power (e.g., a pure electric mode), and by the power from both the motor and the electric machine in a third operating mode (e.g., an electric auxiliary mode).In another example, one or both of the first axle arrangement 102 and the second axle arrangement 112 can be an electric axle arrangement configured to be driven by an integrated electric machine. The electric machines used in the present disclosure can be traction motors, traction generators, or traction motor / generators.

[0029] In some embodiments, the transmission 108 can additionally or alternatively be a first transmission which also includes a second transmission arranged on the second set of axle shafts 128. In this context, the transmission 108 can also be referred to as a gear transmission.

[0030] A set of reference axes 201 is used for comparison between the views in Fig. 2-10 provided. The reference axes 201 specify a y-axis, an x-axis, and a z-axis. In an example, the z-axis may be parallel to a direction of gravity, and the xy-plane may be parallel to a horizontal plane on which an arrangement 202 and a shaft 354 may rest. When specifying the direction, "positive" can refer to the arrow direction of the y-axis, x-axis, and z-axis, and "negative" to the opposite arrow direction of the y-axis, x-axis, and z-axis. A filled circle can represent an arrow and axis pointing toward or positive to a view. An unfilled circle can represent an arrow and axis pointing away from or negative to a view.

[0031] In Fig. Figure 2 shows a first view 200 of an arrangement 202. The arrangement 202 is a motor arrangement that may include a machine with the fluid distribution system of the present disclosure. The machine may be housed in the arrangement 202. The machine may be a drive machine or a generator. The machine may be an electric machine, e.g., an electric motor or an electric motor / generator. The electric machine housed in the arrangement 202 may, for example, be the drive machine 106 from Fig. 1. Furthermore, the arrangement 202 can be a differential, such as the first differential 116 or the second differential 126 of Fig. 1. In addition, the arrangement 202 can accommodate a gearbox, such as gearbox 108 in Fig. 1. Record.

[0032] The arrangement 202 can have a first side 204 and a second side 206, with the first side 204 facing the second side 206. The arrangement can be positioned about a first axis 208 and a second axis 210. The first axis 208 can be a drive axis around which an electric machine housed in the arrangement 202 can be positioned. The second axis 210 can be the axis for an axle. A plurality of axle half-shafts rotatably coupled to the wheels can be centered about the second axis 210. The first axis 208 and the second axis 210 can be parallel. The arrangement 202 can be divided by a line 212, e.g., line AA. Line 212 runs parallel to the first axis 208 and the second axis 210. Line 212 is collinear with the first axis 208. A section view corresponding to line 212 is shown in Fig. Figure 3 shows an outer surface 214 that can represent a volume, such as a packaging space, around the arrangement 202.

[0033] In a vehicle such as vehicle 100, the first axle 208 and the second axle 210 can run laterally with respect to the longitudinal axis of the vehicle. However, the longitudinal axis of the arrangement 202 can also refer to the length of the arrangement 202, with the length and the longitudinal axis running parallel to the axes around which the rotating elements of the arrangement are centered. In this example, the first axle 208 and the second axle 210 are arranged longitudinally along the arrangement 202.

[0034] The arrangement 202 can comprise a first housing section 222 and a second housing section 224. The first housing section 222 can accommodate the electric machine. The second housing section 224 can accommodate a differential assembly. Parts of an axle assembly, such as a first half axle shaft and a second half axle shaft, can also be housed in the second housing section 224. The differential housed in the second housing section 224 can be a front or a rear differential, such as the first differential 116 or the second differential 126, respectively.

[0035] The first housing section 222 includes an end bell 226. The end bell 226 is located on the second side 206 of the arrangement 202. The first housing section 222 may include an end structure 228. The end structure 228 may be located on the first side of the arrangement 202. Multiple supports, such as multiple first supports 230 and multiple second supports 232, may be located longitudinally between the end bell 226 and the end structure 228. The supports of the first housing section 222, such as the first support 230 and the second support 232, may fasten the arrangement 202 to components or features of a vehicle in which the arrangement 202 is housed. The first and second supports 230, 232 may each have at least one mounting hole from a plurality of mounting holes 234. For example, the first support 230 may have one mounting hole from the set of mounting holes 234.The second support 232 may have a pair of mounting holes 234. The end bell 226 may have a first port 236. The first port 236 may be fluidically coupled to and in fluid communication with a variety of passages and volumes of the end bell 226. The end bell 226 may have a removable cover 238. The cover 238 may be physically coupled to the end bell 226. For example, the cover 238 may be physically coupled to the end bell 226, e.g., by fastening it with a variety of fasteners 240. The cover 238 may fluidically seal a complementary hole in the end bell 226, e.g., when the cover 238 is attached to the bell 226. When they are closed by the cover 238, the complementary hole and the volumes of the end bell 226, which are in fluid communication with the complementary hole, can be fluidically sealed from the outside 214.

[0036] The second housing section 224 can comprise a first sleeve 244 and a second sleeve 246. The first sleeve 244 can be arranged on the first side 204 of the arrangement 202. The second sleeve 246 can be arranged on the second side 206 of the arrangement 202. The first sleeve 244 can have a first opening 248. The second sleeve 246 can have a second opening 250. The surface of the first opening 248 and the surface of the second opening 250 can be perpendicular to the second axis 210. The first sleeve 244 and the second sleeve 246 can be centered about the second axis 210 such that the center lines of the first opening 248 and the second opening 250 are approximately collinear with the second axis 210. The first sleeve 244 and the second sleeve 246 can each receive and accommodate parts of an axle.The first sleeve 244 can, for example, receive and accommodate parts of a first axle half-shaft. The second sleeve 246 can receive and accommodate parts of a second axle half-shaft. The first axle half-shaft and the second axle half-shaft can be opposite ends of a shaft. The first axle half-shaft and the second axle half-shaft can form wheels, such as the first wheels 104 or the second wheels 114 of . Fig. 1. Axle half-shafts, which are complementary to an axle and to opposite sides of the vehicle. Axle half-shafts, which are received by the first sleeve 244 or the second sleeve 246, can be rotatably and drivenly coupled to the differential housed in the second housing section 224. The differential housed in the second housing section 224 can deliver different torques and speeds for each axle half-shaft received by the first sleeve 244 or the second sleeve 246.

[0037] Fig. Figure 3 shows a second view 300 of the arrangement 202. The second view 300 is a first sectional view of the arrangement 202, which is of line 212, e.g. line AA, from Fig. 2 corresponds. The second view 300 is taken from above onto the arrangement 202, whereby the z-axis can be perpendicular and positive to the second view 300.

[0038] The second view 300 shows that the first housing section 222 has a plurality of volumes, including a first cavity 328 and a second cavity 329. The first cavity 328 has an opening 322 on the first side 204. The opening 322 can include a first orifice 324 and a second orifice 326. The first opening 324 can be an outer opening that opens into the second opening 326. The first opening 324 can be located closest to the first side 204 of the second opening 326. The second opening 326 can be located between the first opening 324 and the first cavity 328. The surfaces of the first cavity 328 can be continuous and adjoin the surfaces of the second cavity 329. The first cavity 328 can be in fluid communication with the second cavity 329, thus forming a fluid connection. Parts of the first cavity 328 can lie radially around the second cavity 329.The second cavity 329 can be separated from the first cavity 328 by material from the first housing section 222, wherein the material of the first housing section 222 is arranged around the second cavity 329 and defines its volume. The material of the first housing section 222 can form a first collar 356 and a second collar 358. The inner surfaces of the second collar 358 can define the volume of the second cavity 329.

[0039] The second view 300 shows that the second housing section 224 comprises a shell 330 and a web 332. The shell 330 can house a differential and parts of components and features that are rotatably coupled to the differential. The web 332 can be a material of the second housing section 224 that extends outwards, such as a platform that can mechanically support features of the second housing section 224. The web 332 can extend around and from features of the second housing section 224, such as the first sleeve 244 and the shell 330. The web 332 can lie in a plane, and this plane can be parallel to a plane formed by the x- and y-axes of the reference axes 201.

[0040] Returning to the first housing section 222: The first cavity 328 and the second cavity 329 can accommodate an electrical machine assembly 334. Various components of the electrical machine assembly 334 can be housed in the first cavity 328 and the second cavity 329. However, some components, such as the shaft 354, can be housed in both the first cavity 328 and the second cavity 329. The first cavity 328 can accommodate an electrical assembly 338. The electrical assembly 338 can be located at one end of the first cavity 328 that is closest to the second side 206. The electrical assembly 338 can be positioned around the second cavity 329, and the electrical assembly 338 can be separated from the second cavity 329 and held by the material of the first housing section 222.

[0041] The electrical machine assembly 334 can be an electrical machine system, e.g., a traction motor system and / or a traction generator system. The electrical machine assembly 334 can include an electric machine as well as a variety of support and auxiliary components, such as bearings. The electric machine of the electrical machine assembly 334 can be the drive machine or the generator for the motor assembly 202. The electric machine of the electrical machine assembly 334 can be a traction motor or a traction motor / generator. The electrical machine assembly 334 can include a third cavity 336. The third cavity 336 can be arranged about the axis 208. The third cavity 336 can be centered about the axis 208, e.g., arranged radially about the axis 208. Likewise, the electrical machine assembly 334 can be positioned about the axis 208.The electrical machine assembly 334 can be positioned approximately centered around the axis 208, for example, radially around the axis 208. For instance, the electrical machine assembly 334 can be positioned radially around the axis 208 if the third cavity 336 is positioned approximately radially around the axis 208. The third cavity 336 can be a passage or a hole extending from one end to the opposite end of the electrical machine assembly 334. The third cavity 336 can be a passage or a through-hole extending through the electrical machine assembly 334. The third cavity 336 can have a volume and a surface of approximately cylindrical shape. The electrical arrangement 338 can supply electrical power to the electrical machine assembly 334.The electrical arrangement 338 can be electrically coupled to the electrical machine arrangement 334 via a variety of electrical windings. These windings can, for example, be a wiring system 340. The wiring system 340 can extend through the components and features of the electrical machine arrangement 334. The wiring system 340 can be grounded on the side of the first cavity 328 opposite the electrical arrangement 338. The electrical machine arrangement 334 can convert the electrical energy supplied by the electrical arrangement 338 into rotational energy and transmit the rotational energy via a torque. For example, an alternating current of electrical energy through the wiring system 340 can convert the electrical energy into rotational energy by forcing the rotating elements of the electrical machine arrangement 334 to rotate about the axis 208.The electrical arrangement 338 can be electrically connected to an energy source, such as the energy storage device 105. Fig. 1, be coupled and draw electrical energy from it.

[0042] The first cavity 328, the second cavity 329, and the electrical machine assembly 334 can be supplied with working fluid via a variety of fluid passages. The working fluid can be a coolant and / or a lubricant such as oil. The fluid passages can also be referred to as oil channels, e.g., for the transport of oil. For example, the first housing section 222 can have a first passage 342. The first passage can be coupled to and fluidically connected with a first port 344, a second port 346, and a second passage 348. The first port 344 and the second port 346 can also be fluidically connected to and fluidically coupled with the first cavity 328. The cover 238 can contain the second passage 348.The centerlines of the first port 344 and the second port 346 can extend in a direction perpendicular to the centerline of the first passage 342. The centerlines of the first port 344 and the second port 346 can extend radially with respect to the first cavity 328 and the first axis 208. The working fluid can be supplied to the first passage 342 via the first port 344 and the second port 346. The first port 344 and the second port 346 can be fluidically coupled to a working fluid source in the exterior 214. In a fluid connection, fluid can be driven from the first passage 342 to the second passage 348. The fluid in the second passage 348 can be supplied to the electrical machine assembly 334. The working fluid from the second passage 348 can lubricate components of the electrical machine assembly 334.The working fluid from the second pass 348 can mitigate changes in thermal energy in the components of the electrical machine arrangement 334 and remove the build-up of thermal energy from these components, e.g. when it serves as a coolant.

[0043] The electrical machine arrangement 334 can comprise a stator 352, a rotor 355, and a shaft 354, wherein the stator 352, the rotor 355, and the shaft 354 can be arranged radially around the axis 208. The stator 352 can be arranged around the rotor 355, the shaft 354, and the axis 208. The stator 352 can be positioned around the rotor 355, the shaft 354, and the axis 208 such that the inner surface of the stator 352 is arranged approximately radially around the rotor 355 and the shaft 354. The rotor 355 can be positioned around the shaft 354 and the axis 208. The shaft 354 can be positioned around the axis 208, for example, radially around the axis 208. Likewise, the rotor 355 can be arranged radially around the axis 208. The shaft 354 and the rotor 355 must not be in full contact with the stator 352. The rotor 355 and the stator 352 may be separated by a gap.The stator 352 can contain the third cavity 336, which can be defined by an inner surface of the stator 352. The surface of the third cavity 336 can have an approximately cylindrical shape. Likewise, the stator 352 can have an approximately cylindrical shape. The shaft 354 can be housed in and extend through the third cavity 336. The rotor 355 can be housed in the third cavity 336. The shaft 354 can be a rotor shaft that supports the rotor 355 and is in planar contact with it. The rotor 355 can be physically and rotatably coupled to the shaft 354, allowing the shaft 354 to rotate in the same direction as the rotor 355. When rotating, the shaft 354 can rotate about the axis 208, for example, if the shaft 354 is centered about the axis 208.

[0044] The electrical machine arrangement 334 can also comprise a first plate 350 and a second plate 351. The first plate 350 can be positioned around the shaft 354 and the axis 208. Furthermore, the first plate 350 can be arranged between the stator 352 and the opening 322. The second plate 351 can be positioned around the shaft 354 and the axis 208. Additionally, the first plate 350 can be arranged between the stator 352 and the second cavity 329. The second plate 351 can be arranged between the stator 352 and the second opening 326. Likewise, the shaft 354 can support the first plate 350 and the second plate 351 and be in planar contact with them. The first plate 350 and the second plate 351 can each be physically and rotatably coupled to the shaft 354, so that the first plate 350 and / or the second plate 351 can rotate in the same direction as the shaft 354.The first and second plates 350, 351 can be deflector plates that can prevent power losses due to splashing of working fluid in the third cavity.

[0045] The first collar 356 and the second collar 358 can be arranged around and support parts of the shaft 354. The first plate 350 can be positioned between the first collar 356 and the stator 352, for example, if the first plate 350 is positioned around the shaft 354 and / or rotatably coupled to it. The second plate 351 can be positioned between the second collar 358 and the stator 352, for example, if the second plate 351 is positioned around the shaft 354 and / or rotatably coupled to it. The first collar 356 and the second collar 358 can be centered around the axis 208, such that the first collar 356 and the second collar 358 are arranged radially around the axis 208. If the first collar and the second collar 358 are arranged radially around the axis 208, the axis 208 can be perpendicular to the areas of each opening of the first collar 356 and the second collar 358.Likewise, the axis 208 can intersect approximately with the centers of the openings of the first collar 356 and the second collar 358. The shaft 354 can extend through the first collar 356 to the opening 322. The shaft 354 can extend through the second collar 358 into the second cavity 329.

[0046] The first collar 356 can support and accommodate a first bearing 360. Likewise, the second collar 358 can support and accommodate a second bearing 362. The first bearing 360 can be positioned around the shaft 354 and, when arranged around the shaft 354, can be positioned between an inner surface of the first collar 356 and the shaft 354. The second bearing 362 can be positioned around the shaft 354 and, when arranged around the shaft 354, can be positioned between an inner surface of the second collar 358 and the shaft 354. The first bearing 360 can be arranged radially around the shaft 354, and the first bearing 360 can be arranged radially between the first collar 356 and the shaft 354. The second bearing 362 can be arranged radially around the shaft 354, and the second bearing 362 can be arranged radially between the second collar 358 and the shaft 354.A third bearing 364 can also be arranged around the shaft 354, for example radially around the shaft 354. The third bearing 364 can be located in and supported by the second cavity 329. The third bearing 364 can be located between the shaft 354 and an inner surface of the second cavity 329. Additionally or alternatively, the third bearing 364 can be located between the shaft 354 and other components located in the second cavity 329, with the other components being arranged around the shaft 354.

[0047] The stator 352 can contain a plurality of first stacks 366. The rotor 355 can contain a plurality of second stacks 368. The first stacks 366 can be sections, e.g., laminations, that comprise the stator 352. The second stacks 368 can be sections, e.g., laminations, that comprise the rotor 355. The first stacks 366 can accommodate and support structures and components that extend through or are accommodated by the stator 352. For example, the windings, such as the wiring 340, can be housed in the first stacks 366. The second stacks 368 can accommodate and support structures and components that extend through or are accommodated by the rotor 355. For example, magnetic components, such as permanent magnets, can be housed in the second stacks 368.

[0048] The shaft 354 can comprise a first section 382, ​​a second section 384, and a third section 386. The first section 382 can extend through the first collar 356. The first collar 356 can be positioned around the first section 382, ​​for example, radially around the first section 382. The stator 352 and the third cavity 336 can be arranged around the second section 384, for example, radially around the second section 384. The third section 386 can extend through the second collar 358. The second collar 358 can be positioned around the third section 386, for example, radially around the third section 386. The first section 382 can be centered by the first collar 356, so that the centerline of the first section 382 and the centerline of the first collar 356 can be collinear. The first section 382 can extend through the first fret 356. The first fret 356 can be positioned around the first section 382, ​​e.g.radially around the first section 382. The first section 382 can be centered by the first collar 356, so that the centerline of the first section 382 and the centerline of the first collar 356 can be collinear. The first bearing 360 can support the first section 382. Likewise, the second and third bearings 362, 364 can support the third section 386. The first bearing 360 can be arranged around the first section 382, ​​and the first bearing 360 can be arranged between an inner surface of the first collar 356 and the first section 382. The first bearing 360 can be arranged radially around the first section 382, ​​and the first bearing 360 can be arranged radially between the first collar 356 and the first section 382. The second bearing 362 can be arranged around the shaft 354, and the second bearing 362 can be arranged between an inner surface of the second collar 358 and the third section 386.The second bearing 362 can be arranged radially around the third section 386, and the second bearing 362 can be arranged radially between the second collar 358 and the third section 386. The third bearing 364 can be arranged around the third section 386. The third bearing 364 can be arranged radially around the third section 386. The third bearing 364 can be arranged between the third section 386 and other components housed in the second cavity 329, with the other components arranged around the third section 386. The rotor 355 can be positioned around the second section 384. The second section 384 can support the rotor 355, for example, if it is rotatably coupled to the shaft 354.

[0049] A shoulder 388 can extend outward from the second section 384 with respect to the axis 208 and the outer surface of the second section 384. The shoulder 388 can extend radially away from and around the second section 384. The first plate 350 can be positioned around the shoulder 388. The first plate 350 can abut the shoulder 388, for example, when it is positioned around the shoulder 388. The shoulder 388 can prevent the first plate 350 from moving / shifting with respect to the axis 208 toward the first side 204. The first plate 350 can be positioned radially around the shoulder 388. The first plate 350 can be attached to the shoulder 388 so that the shoulder can be attached to an insert of the first plate 350. When attached to the first plate 350, the shoulder 388 can physically and rotatably couple the first plate 350 to the shaft 354.

[0050] The shaft 354 can be a hollow shaft, wherein the shaft 354 contains at least one hollow part that constitutes a volume. In one embodiment, the shaft 354 can, for example, be a sleeve, wherein the sleeve surrounds the hollow part. The volume can be a continuous volume, such as a passage or through-hole, extending from the first section 382 to the third section 386. The volume has an opening in the first section 382 and an opening in the third section 386. In this example, the volume can be a third passage 390. The third passage 390 is a passage through the shaft 354. The third passage 390 has a first opening 392 at one end of the first section 382 and a second opening 394 at one end of the third section 386. The first opening 392 can have a plurality of teeth. The toothing of the first opening 392 can be complementary to an output of the arrangement 202, e.g.B. to another shaft or other rotating element. If the teeth of the first opening 392 engage with the complementary teeth of the output, the output can be rotationally coupled to the shaft 354. The torque of the shaft 354 can be transmitted to and drive the output, e.g., if the output is rotationally coupled via the teeth. The second opening 394 can be complementary to an insert 396. The insert 396 can be a hollow structure having a continuous volume, such as a passage or through-hole extending through the insert 396. The insert 396 can be received by the second opening 394, so that it is physically coupled to the shaft 354 and fluidically coupled to the third passage 390. Fluid can be transported across the volume from a first end to a second end opposite the first end of the insert 396.The insert 396 can, for example, contain a fourth passage 398. The fourth passage 398 can be a passage, e.g., a through-hole. The fourth passage 398 can bring the third passage 390 into fluid contact with the second passage 348, for example, when the insert 396 is received by the second opening 394. Fluid can flow from the second passage 348 through the fourth passage 398 and through the insert 396. Fluid can flow from the insert 396 through the fourth passage 398 and into the third passage 390.

[0051] The working fluid received by the shaft 354, e.g., from the second opening 394, can spread outwards towards the components surrounding the shaft 354, such as the rotor 355, the first bearing 360, and the second bearing 362. The working fluid can be driven outwards from the shaft 354 via a plurality of distribution holes. For example, the third passage 390 can be coupled to and in fluid communication with a plurality of distribution holes in the shaft 354. The distribution holes can extend from the third passage 390 through the material of the shaft 354 to the outer surfaces of the shaft 354. The outward force generated by the rotation of the shaft 354 can drive fluid out through the distribution holes. Through the openings to the distribution holes on the outer surface of the shaft 354, the lubricant can be distributed onto the outer surfaces and the components surrounding the outer surfaces.The outward force exerted by the rotation or turning of the shaft 354 can drive fluid from the outer surfaces to the components or features arranged around the shaft 354. For example, several second distribution holes can direct fluid from the third passage 390 into the first section 382, ​​and the first section 382 can direct and introduce fluid into the first bearing 360. In this or another example, a plurality of second distribution holes can distribute the fluid from the third passage 390 to the outer surface of the second section 384 and from the outer surface of the second section 384 to the third cavity 336. The second distribution holes and the outer surface of the second section 384 can supply fluid for the lubrication and cooling of the rotor 355. The second distribution holes can be adjacent to one or more surfaces of the second section 384.In this or another example, a plurality of third distribution holes can distribute the fluid from the third passage 390 to the outer surface of the third section 386, and the outer surface of the third section 386 can distribute the fluid to the second and third bearings 362, 364. The fluid in these examples can be a coolant and / or a lubricant.

[0052] Fig. Figure 4 shows a third view 400 of shaft 354. The third view 400 shows shaft 354 isolated from other components and features of the arrangement 202. Fig. 2-3. The third view 400 is also a second side view. The third view 400 is taken from a view perpendicular to the longitudinal axis of the arrangement 202, the y-axis of the reference axes 201 being perpendicular and positive to the second view 300. The outer surfaces of the shaft 354 may be open to the outside 404. The outer surface 404 may be a volume, e.g., a packaging space, located around the shaft 354. The shaft 354 and the third passage 390 may be centered about a first axis 410. The first axis 410 may be a longitudinal axis parallel to the y-axis of the reference axes 201 and the first axis 208 of Fig. 2-3. The axis 410 can be the first axis 208. The third view 400 shows the wave 354 from a first end located on the first section 382. The wave 354 can be divided by a second line 412, e.g., by line BB. The second line 412 can run perpendicular to the axis 410. The second line 412 can divide the wave 354 into two approximately symmetrical halves. The second line 412 can run perpendicular to the positioning of the wave 354, and the second line 412 can run parallel to the z-axis of the reference axes 201.

[0053] A cross-sectional view can be shown on the second line 412. The second line 412 can divide the wave into a first side 406 and a second side 408. The first side 406 can be opposite the second side 408 with respect to the second line 412.

[0054] The first section 382 comprises a wall 424. The wall 424 may include a first web 422. The first web 422 and the wall 424 may each be cylindrical. The wall 424 may be tubular. The first web 422 may extend radially from a section of the wall 424 that is arranged around the first opening 392 and extends longitudinally from it. The wall 424 may be arranged radially around the third passage 390. The shoulder 388 and the first section 382 may have a first surface 428 and a second surface 430, respectively. The first surface 428 and the second surface 430 may be surfaces perpendicular to the axis 410, the centerline of the shaft 354 and the third passage 390, the y-axis of the reference axes 201, and the longitudinal direction.The first surface 428 and the second surface 430 can be positioned so that they are coplanar to planes parallel to a plane formed by the x- and z-axes of the reference axes 201. The first surface 428 can be circular, e.g., as an annular surface around the first section. The first surface 428 can extend radially from and around the first web 422. The first surface 428 extends radially from and around the first section 382. The first surface 428 can terminate at an edge 426 of the shoulder 388. The second surface 430 can be circular, e.g., as an annular surface around the first opening 392. The second surface 430 can extend radially from and around the first opening 392.

[0055] The first section 382 can also have a first inner surface 432 and a second inner surface 434. The first inner surface 432 and the second inner surface 434 are surfaces that can be arranged around the third passage 390 and form its volumetric shape. The third view 400 also shows a third inner surface 436. The third inner surface 436 can be positioned around the third passage 390 and form its volumetric shape. The third inner surface 436 can be part of the third section 386 and arranged therein around a section of the third passage 390 that is concentric with the third section 386. The sections of the third passage 390 that are concentric with the first inner surface 432, the second inner surface 434, and the third inner surface 436 can have different diameters. The first inner surface 432, the second inner surface 434, and the third inner surface 436 can have a cylindrical shape.The first inner surface 432, the second inner surface 434 and the third inner surface 436 can be arranged radially around the axis 410.

[0056] The first section 382 can include a first recess 442 and a second recess 444. The first opening 392 can contain the first recess 442. The first recess 442 can be arranged longitudinally between the second surface 430 and the first inner surface 432. Likewise, the second recess 444 can be arranged longitudinally between the first inner surface 432 and the second inner surface 434 and converge with them. The first recess 442 and the second recess 444 can be arranged around the third passage 390. The first recess 442 and the second recess 444 can be arranged radially around the third passage 390. The first recess 442 can connect the second surface 430 with the first inner surface 432, so that the second surface 430 adjoins the first inner surface 432. The second recess 444 can connect the first inner surface 432 with the second inner surface 434, so that the first inner surface 432 is continuous with the second inner surface 434.The wall 424 can have a thickness 472. The thickness 472 can extend radially outwards from the first recess 442. The thickness 472 can vary at different points along the longitudinal axis. For example, the thickness 472 can vary at different sections of the shaft 354, such as the first section 382, ​​the second section 384, and the third section 386. Fig. 3. Furthermore, the thickness 472 can increase or decrease with the features of the shaft 354, e.g. at different webs of the shaft 354, such as the first web 422.

[0057] There can be a multitude of grooves arranged around the shaft 354 and pressed into the shaft material. The shaft 354 can have a first groove 452 and a second groove 454. The first groove 452 and a second groove 454 can extend from the circumference of the first web 422 and through a portion of the wall material 424 in a radial direction towards the passage 390. The first groove 452 and a second groove 454 can extend from the circumference of the wall 424 and through a portion of the wall material 424 in a radial direction towards the passage 390. The first groove 452 can be connected to a first notch 456. The second groove 454 can be connected to a second notch 458. The first notch 456 and the second notch 458 can push through the material of the shoulder 388 in a radial direction from the circumference 426 and transition into the first groove 452 and the second groove 454, respectively.The first groove 452 and the second groove 454 can be arranged approximately symmetrically around the shaft 354. The first notch 456 and the second notch 458 can be arranged approximately symmetrically around the shaft 354.

[0058] Fig. Figure 5 shows a fourth view 500 of shaft 354. The fourth view 500 shows a side view of shaft 354, which is separated from other components and features of the arrangement 202. Fig. 2-3 is isolated. The fourth view 500 is taken from a view perpendicular to a vertical axis of the shaft 354 with respect to the reference axes 201. The shaft 354 can have a first end 504 and a second end 506, which are opposite each other. The first section 382 can be closest to the first end 504, with the first opening 392 being formed at the first end 504. The third section 386 can be closest to the second end 506, with the second opening 394 being formed at the second end 506.

[0059] The fourth view 500 can be divided by a third line 512, for example, by a line 512. The line 512 can be positioned in the middle of the wave 354, for example, in the middle of the second section 384. The first section 382 can have a first length 514. The second section 384 can have a second length 516. The third section 386 can have a third length 518. The first length 514, the second length 516, and the third length 518 run longitudinally along the wave 354 and can run parallel to the axis 410.

[0060] The shaft comprises a multitude of sections with varying dimensions. Each section is essentially cylindrical and has a curved surface arranged approximately radially around the axis 410. The first section 382 may have a first outer surface 532 extending longitudinally between the first web 422 and the first opening 392. The first outer surface 532 may be a perimeter of the first section 382, ​​for example, a circumference. The first outer surface 532 may be curved around the axis 410 and arranged approximately radially around the axis 410. The first outer surface 532 may have a cylindrical shape. Similarly, the second section 384 may have a second outer surface 534 extending longitudinally between the third section 386 and the shoulder 388. The second outer surface 534 may be a perimeter of the second section 384, for example, a circumference.The second outer surface 534 can be curved about the axis 410, and it can be curved and positioned approximately radially about the axis 410. The second outer surface 534 can have a cylindrical shape. The first groove 452 can extend over the second length 516 and through the second outer surface 534 of the second section 384. The first groove 452 can extend radially to the axis 410 and through the second outer surface 534. Likewise, the second groove 454 can be in . Fig. 4 mirror the first groove 452 on the side of the axis 410 opposite the first groove 452.

[0061] The third section 386 can contain a plurality of webs with different diameters, e.g., a second web 522, a third web 524, a fourth web 526, a fifth web 528, and a sixth web 530. The second web 522 can contain the first outer surface 532. The sixth web 530 can be arranged radially around the second opening 394 with respect to the axis 410. The webs of the third section 386, in order of greatest distance from the second end 506, are the second web 522, the third web 524, the fourth web 526, the fifth web 528, and the sixth web 530.

[0062] The second bridge 522 has a third outer surface 536. The third outer surface 536 can be a perimeter, e.g., the perimeter of the second bridge 522. The third bridge 524 includes a fourth outer surface 538. The fourth outer surface 538 can be a perimeter of the third bridge 524, e.g., a circle's circumference. The fourth bridge 526 includes a fifth outer surface 540. The fifth outer surface 540 can be a perimeter, e.g., the perimeter of the fourth bridge 526. The fifth bridge 528 has a sixth outer surface. The sixth outer surface can be a perimeter of the fifth bridge 528, e.g., its circumference. The sixth bridge 530 includes a seventh outer surface. The seventh outer surface can be a perimeter of the sixth bridge 530, e.g., a circle's circumference.The third outer surface 536, the fourth outer surface 538, the fifth outer surface 540, the sixth outer surface and the seventh outer surface can be curved around the axis 410, and the aforementioned outer surfaces can be curved and arranged approximately radially around the axis 410. The third outer surface 536, the fourth outer surface 538, the fifth outer surface 540, the sixth outer surface and the seventh outer surface can have a cylindrical shape.

[0063] The aforementioned webs and their outer surfaces of the first section 382, ​​the second section 384, and the third section 386 can have a plurality of grooves. Each groove can be arranged around the outer surface of the respective section and be pressed into it. The first section 382, ​​for example, can contain a third groove 542 and a fourth groove 544. Furthermore, the second section 384 can contain a tenth groove 556. Likewise, the third section 386 can contain a fifth groove 546, a sixth groove 548, a seventh groove 550, an eighth groove 552, and a ninth groove 554.

[0064] The first outer surface 532 can enclose the third groove 542, the third groove 542 being arranged around and penetrating the first outer surface 532. The third groove 542 can curve with the curvature of the first outer surface 532, so that the third groove 542 can bulge radially around the axis 410 and press downwards in a radial direction. The fourth groove 544 can be arranged longitudinally between the first web 422 and the first outer surface 532. The fourth groove 544 can be arranged around and press into the first section 382. The fourth groove 544 can curve with the curvature of the first section 382, ​​so that the fourth groove 544 can bulge radially around the axis 410 and press downwards in a radial direction.

[0065] The tenth groove 556 can be arranged longitudinally between the shoulder 388 and the second outer surface 534. The tenth groove 556 can be located around the second section 384 and press into it. The tenth groove 556 can curve with the curvature of the second section 384 and the second outer surface 534, so that the tenth groove 556 can arch radially around the axis 410 and press downwards in a radial direction.

[0066] The fifth groove 546 can be arranged longitudinally between the second web 522 and the third web 524, for example, between the third outer surface 536 and the fourth outer surface 538. The fifth groove 546 can be located around the third section 386 and press into it. The fifth groove 546 can be curved radially around the axis 410 and press downwards in a radial direction. The fifth groove 546 can be curved with the curvature of the second web 522 and / or the third web 524, for example, with the curvature of the third outer surface 536 and / or the fourth outer surface 538.

[0067] The sixth groove 548 can be arranged longitudinally between the fifth groove 546 and a seventh groove 550. The third web 524 can contain the sixth groove 548, the sixth groove 548 being arranged around the material of the third web and being pressed into it. The sixth groove 548 can be pressed into the fourth outer surface 538. The sixth groove 548 can divide the fourth outer surface 538, e.g., divide the fourth outer surface 538 into two separate sections. The sixth groove 548 can be arranged radially around the axis 410 and be pressed through it in a radial direction towards the axis 410. For example, the sixth groove 548 can penetrate the fourth outer surface 538 in a radial direction towards the axis 410.

[0068] The seventh groove 550 can be arranged longitudinally between the third web 524 and the fourth web 526, for example, between the fourth outer surface 538 and the fifth outer surface 540. The seventh groove 550 can be located around the third section 386 and press into it. The seventh groove 550 can bulge radially around the axis 410 and press downwards in a radial direction. The seventh groove 550 can curve with the curvature of the third web 524 and / or the fourth web 526, for example, with the curvature of the fourth outer surface 538 and / or the fifth outer surface 540.

[0069] The eighth groove 552 can be arranged longitudinally between the fourth web 526 and the fifth web 528. The eighth groove 552 can be located around the third section 386 and press into it. The eighth groove 552 can bulge radially around the axis 410 and press downwards in a radial direction. The eighth groove 552 can curve with the curvature of the fourth web 526 and / or the fifth web 528.

[0070] The ninth groove 554 can be arranged longitudinally between the fifth web 528 and the sixth web 530. The ninth groove 554 can be located around the third section 386 and press into it. The ninth groove 554 can bulge radially around the axis 410 and press downwards in a radial direction. The ninth groove 554 can curve with the curvature of the fifth web 528 and / or the sixth web 530.

[0071] The shaft 354 can have a variety of diameters, with the features and components of the shaft 354 exhibiting different diameters. The first section 382 can have a first diameter 558 and a second diameter 560, the second diameter 560 being larger than the first diameter 558. The first diameter 558 and the second diameter 560 can be the outer diameters for their respective parts of the first section 382. The part of the first section 382 that includes the first outer surface 532 can have the first diameter 558. Likewise, the first web 422 can have the second diameter 560.

[0072] The second section 384 can have a third diameter 562 and a fourth diameter 564, each with different spacings. The shoulder 388 can have the third diameter 562. The portion of the second section 384 that has the second outer surface 534 can have the fourth diameter 564. The fourth diameter 564 can be an outer diameter for the second outer surface 534. The third diameter 562 can have a larger spacing than the fourth diameter 564. The fourth diameter 564 can have a larger spacing than the second diameter 560 and the first diameter 558.

[0073] The third section 386 can have a fifth diameter 566, a sixth diameter 568, a seventh diameter 570, an eighth diameter 572, and a ninth diameter 574, each spaced at a different distance from the others. The second web 522 can have a fifth diameter 566. The third web 524 can have a sixth diameter 568. The fourth web 526 can have a seventh diameter 570. The fifth web 528 can have an eighth diameter 572. The sixth web 530 can have a ninth diameter 574. The fourth diameter 564 can have a larger distance than the fifth diameter 566, the sixth diameter 568, the seventh diameter 570, the eighth diameter 572, and the ninth diameter 574. The fifth diameter 566 can have a larger distance than the sixth diameter 568, the seventh diameter 570, the eighth diameter 572, and the ninth diameter 574.The sixth diameter 568 can have a greater distance than the seventh diameter 570, the eighth diameter 572, and the ninth diameter 574. The seventh diameter 570 can have a greater distance than the eighth diameter 572 and the ninth diameter 574. The eighth diameter 572 can have a greater distance than the ninth diameter 574.

[0074] The 354 shaft can have a variety of holes, which are the ones at the top in Fig. The shaft 354 can have at least one first hole 582 and one second hole 584. The first section 382 can contain the first hole 582, and the third section 386 can contain the second hole 584. The first outer surface 532 can encompass and be flush with the first hole 582, and the third outer surface 536 can encompass and be flush with the second hole 584. A plurality of first holes 582 and second holes 584 can also be present. For example, on the side of the shaft 354 opposite the third view 400, there can be an additional hole of the first hole 582, the additional hole being a mirror image of the first hole 582 and symmetrical to it with respect to the axis 410. In some examples, an additional hole can be arranged opposite the second hole 584, the additional hole being a mirror image and symmetrical to the second hole 584 with respect to the axis 410.A hole that is symmetrical to the first hole 582 can be referred to here as the first hole 582, and in such cases there can be a multitude of first holes 582. A hole that is symmetrical to the second hole 584 can be referred to here as the second hole 584, and in such cases there can be a multitude of second holes 584.

[0075] The second section 384 can contain a plurality of third holes 586 and a plurality of fourth holes 588. The second outer surface 534 can encompass and be flush with the third holes 586 and the fourth holes 588. The third holes 586 can be separated from the fourth holes 588 about the axis 410. In this example, the third holes 586 can be located in the positive x-direction to the fourth holes 588 with respect to the reference axes 201. At least one pair of the third holes 586 can be visible in the fourth view 500. At least one pair of the fourth holes 588 can be visible in the fourth view 500. Compared to the holes shown in the fourth view 500, further third holes 586 may be present, for example on the opposite side of the second section 384 in the negative z-direction of the fourth view 500. Likewise, additional fourth holes 588 may be present in addition to those shown in the fourth view 500, e.g.On the opposite side of the second section 384 in the negative z-direction to the fourth view 500, line 512 can intersect the third holes 586 and the fourth holes 588. Line 512 can divide the third holes 586 and fourth holes 588 into approximately symmetrical halves.

[0076] Fig. Figure 6 shows a fifth view 600 of shaft 354. The fifth view 600 shows shaft 354 isolated from other components and features of the arrangement 202. Fig. 2-3. The fifth view 600 is also a side view of shaft 354. The fifth view 600 corresponds to a view perpendicular to a transverse axis of shaft 354. For example, the x-axis of the reference axes 201 can be perpendicular and negative to the fifth view 600.

[0077] The fifth view 600 shows that the second section 384 has at least one fifth hole 622. The second outer surface 534 can encompass the fifth hole 622 and be flush with it. The second section 384 can contain a plurality of fifth holes 622, so that the second outer surface 534 can contain a plurality of fifth holes 622 and be flush with them. For example, an additional fifth hole 622 can be located on the opposite side of the second section 384 and in the negative x-direction of the fourth view 500 with respect to the reference axes 201. The line 512 can intersect the fifth holes 622. The line 512 can divide the fifth holes 622 into approximately symmetrical halves.

[0078] Fig. Figure 7 shows a sixth view 700. The sixth view 700 shows the shaft 354 isolated from other components and features of the arrangement 202. Fig. 2-3. The sixth view 700 is also a second sectional view, corresponding to line 412 of the Fig. 4-6 corresponds. The sixth view 700 is taken perpendicular to a transverse axis of the shaft 354. For example, the x-axis of the reference axes 201 can run perpendicular and negative to the sixth view 700.

[0079] The sixth view, 700, can show a first area, 712, and a second area, 714. The first area, 712, and the second area, 714, can be used for further isolated views, such as the views described below. Fig. 9 and Fig. 10. A first hole of the first holes 582 and parts of the first web 422, the wall 424, the fourth groove 544 and the third passage 390 may be contained in the first area 712. Likewise, a second hole of the second holes 584 and parts of the wall 424, the second web 522, the third web 524, the second outer surface 534, the fifth groove 546, the sixth groove 548 and the third passage 390 may be contained in the second area 714.

[0080] The third passage 390 can comprise a multitude of sections of varying volume and shape. For clarity and to avoid confusion with the first section 382, ​​the second section 384, and the third section 386, the sections of the third passage 390 can be referred to as regions. The third passage 390 comprises a first region 722, a second region 724, a third region 726, a fourth region 728, and a fifth region 730. The first section 382 can comprise the first region 722, the second region 724, and the third region 726. The first section 382, ​​the second section 384, and the third section 386 can be arranged around and include parts of the fourth region 728. The fourth region 728 can have a fourth length 732. The second section 384 and the third section 386 can be arranged around the fifth area 730 and include parts of it.The third passage 390 must not have any lines that are separate from the structure of the shaft 354. The third passage 390 can distribute the fluid to the outer surfaces of the shaft 354 without any lines that are separate from the structure of the shaft 354.

[0081] The first region 722, the second region 724, the third region 726, the fourth region 728, and the fifth region 730 can each be defined and shaped by a surface. The surfaces can be internal surfaces of the shaft 354. For example, the first internal surface 432 can be positioned around the first region 722 and form its volumetric shape. The second internal surface 434 can be positioned around the second region 724 and form its volumetric shape. A third internal surface 736 can be positioned around the third region 726 and form its volumetric shape. A fourth internal surface 738 can be arranged around the fourth region 728 and form its volumetric shape. A fifth internal surface 740 can be arranged around the fifth region 730 and form its volumetric shape. The fifth internal surface 740 can be the third internal surface 436 of Fig. The volumetric shape of the first region 722, the third region 726, and the fifth region 730 can be cylindrical. The volumetric shape of the second region 724 and the fourth region 728 can be more complex, such as a plurality of cylinders whose volumes are arranged in a composite shape. Features such as a toothing 462 contained in or attached to the second internal surface 434 can determine the shape of the volume of the second region 724. Likewise, features such as recesses enclosed by the fourth internal surface 738 can define the shape of the volume of the fourth region 728.

[0082] The internal dimensions of the passage 390 can vary along the length of the shaft 354. The passage 390 can have a variety of diameters, including a variety of different diameters with varying spacing. The first section 722, the second section 724, the third section 726, the fourth section 728, and the fifth section 730 can each have different diameters. The first section 722 can have a first internal diameter of 742. The second section 724 can have a second internal diameter of 744. The third section 726 can have a third internal diameter of 746. The fourth section 728 can have a fourth internal diameter of 748. The fifth section 730 can have a fifth internal diameter of 750. For example, the first internal diameter 742 can have a larger spacing than the second internal diameter 744, the fourth internal diameter 748, and the fifth internal diameter 750.The first inner diameter 742 can be positioned at a variable distance, and the distances between the first inner diameter 742 and the shaft 354 can be varied. The first inner diameter 742 can be located at a maximum distance from the beginning of the first countersink 442, which is closest to the first end 504 of the shaft 354. The first inner diameter 742 can have a minimum distance from the first countersink 442 at locations closer to the second end 506. The first inner diameter 742 can have a distance greater than or equal to the distance of the third inner diameter 746. The third inner diameter 746 can have a greater distance than the second inner diameter 744, the fourth inner diameter 748, and the fifth inner diameter 750. The second inner diameter 744 can have a greater distance than the fifth inner diameter 750. The fourth inner diameter 748 can have a greater distance than the fifth inner diameter 750.The spacing of the second inner diameter (744) can vary. The spacing of the fourth inner diameter (748) can also vary.

[0083] For example, the second inner diameter 744 can vary in a first way, such as longitudinally between the beginning and end of the second countersink 444. The second inner diameter 744 can become smaller at the longitudinal positions further away from the first end 504. The second inner diameter 744 can be located at a first maximum distance at the beginning of the second countersink 444, which is closest to the first end 504 of the shaft 354. The second inner diameter 744 can have a first minimum distance to the second countersink 444 at positions closer to the second end 506. The second inner diameter 744 can also vary in a second way, for example, radially around the axis 410 with the toothing 462. For example, the second inner diameter 744 can be located at a second maximum diameter between the individual toothings 462.The second inner diameter 744 may have a second minimum diameter at the highest point of each of the teeth 462, the highest point being a position relative to and closest to the axis 410. The second maximum diameter and the first maximum diameter may be the same for the second inner diameter 744. Likewise, the fourth inner diameter 748 may have a greater spacing than the second inner diameter 744 at a first set of positions around the fourth inner surface 738, the same spacing as the second inner diameter 744 at a second set of positions around the fourth inner surface 738, and a smaller spacing than the second inner diameter 744 at a third set of positions around the second inner surface 434. The fourth inner surface 738 may have a corrugated section 762, the corrugated section 762 being a conchoidal portion of the shaft 354.The corrugated portion can be defined as a section of the shaft having at least one repeating pattern of a plurality of rounded or convex recesses, such as semicircular recesses. The corrugated section 762 can contain a plurality of recess types, each recess type having different dimensions, such as radii, than other recess types. The recesses can also be referred to as holes. All recesses can be arranged symmetrically with respect to each other, with each hole of a recess type being symmetrical with respect to the other holes of that type. The recesses of the corrugated portion can be arranged radially around a central axis or centerline of the shaft and volume. The holes can alternate in a row around the centerline of the central cavity or passage.

[0084] The corrugated section 762 can be a lubricant distributor, e.g., an oil distributor, which directs oil from the third passage 390 to the outer surfaces 404 and the outer surfaces of the shaft 354. The corrugated section 762 is machined from the shaft, e.g., by casting or machining. The corrugated section 762 can have a fourth length 732. The corrugated section 762 can have a plurality of recesses. Each of the recesses can have a radius that extends into the portions of the fourth inner surface 738, creating volumes there around which it can bulge. The corrugated section 762 can be arranged radially around the fourth region 728 and radially within the fourth inner surface 738. The corrugated section 762 can contain a plurality of recesses of a plurality of recess types. Each recess type can have different dimensions, e.g., B. different radii.The cutouts can be wavy cutouts (e.g., recesses), as in the one in . Fig. The example of wave 354 shown in Figure 7. However, some or all of the cutouts may also be a type of cutout other than a recess. A cutout or cutouts contained in the corrugated section 762 may also be referred to here as recesses. Furthermore, a single cutout or a type of recess may also be referred to here as a recess or recess type.

[0085] A fluid distribution system comprises the corrugated section 762 and the distribution holes of the shaft 354, such as the first holes 582, the second holes 584, the third holes 586, the fourth holes 588 and the fifth holes 622 in Fig. 5-6. The first holes 582, the second holes 584, the third holes 586, the fourth holes 588, and the fifth holes 622 are open to the outer surfaces of the shaft 354 and can serve as external distribution holes. Furthermore, the fluid distribution system includes a plurality of distribution holes, which are internal distribution holes, the internal distribution holes being open to the inner surfaces of the shaft 354. Distribution holes that are internal distribution holes can include a plurality of sixth holes 772, a plurality of seventh holes 774, a plurality of eighth holes 776, a plurality of ninth holes 778, and a plurality of tenth holes 782. The ninth holes 778 are in Fig. 7 not shown and can be found in Fig. Figure 8 shows that the ninth holes 778 can correspond to the eighth holes 776 on the corrugated section 762 on the opposite axis 410. Each of the outer distribution holes is complementary to an inner distribution hole, such that the inner distribution hole is in fluid communication with the outer distribution hole. For example, each inner distribution hole can be in fluid communication with a complementary outer distribution hole via one or more fluid passages. For example, the sixth holes 772 are complementary to the first holes 582 and can be in fluid communication with them. The seventh holes 774 are complementary to the second holes 584 and can be in fluid communication with them. The eighth holes 776 are complementary to the third holes 586 and can be in fluid communication with them. The ninth holes 778 are complementary to the fourth holes 588 and can be in fluid communication with them.The tenth holes 782 are complementary to the fifth holes 622 and can be in fluid communication with them. In this example, the sixth holes 772, the seventh holes 774, the eighth holes 776, the ninth holes 778, and the tenth holes 782 can have openings that are flush with and adjacent to the fourth inner surface 738 and the features of the corrugated section 762. The corrugated section 762 can direct fluid from the fourth inner surface 738 and the third passage 390 to the sixth holes 772, the seventh holes 774, the eighth holes 776, the ninth holes 778, and / or the tenth holes 782.

[0086] The inner distribution holes, such as the sixth holes 772, the seventh holes 774, the eighth holes 776, the ninth holes 778, and the tenth holes 782, are aligned with the corrugated section 762 so that the fluid can pass through an opening from the corrugated section 762 to the inner distribution holes. For example, an opening of each of the inner distribution holes can be flush with and adjacent to a surface of a recess in the corrugated section 762. The fluid can then pass from the corrugated section 762 through the distribution holes to the outer surfaces of the shaft 354 and the outer surface 404. The inner distribution holes, including the sixth holes 772, the seventh holes 774, the eighth holes 776, the ninth holes 778 and the tenth holes 782, must not be fluidically coupled or in fluid contact with conduits that are separate from the structure of the shaft 354.The inner distribution holes can receive fluid without the fluid flowing out of conduits that are separate components of the structure of shaft 354.

[0087] Furthermore, each of the distribution holes shown on the outer surfaces of shaft 354 and each of the distribution holes shown on the inner surfaces of the third passage 390 can be complementary to a fluid passage. In other words, the distribution holes on the inner surface and the distribution holes on the outer surface can be openings for complementary fluid passages. A fluid passage can bring a complementary hole on the inner surfaces into fluid communication with the complementary hole on the outer surfaces, with each complementary hole being able to be in fluid communication via at least one fluid passage. The aforementioned passages that can bring distribution holes into fluid communication can here be referred to as distribution channels or distribution channels.For example, the first holes 582 and the sixth holes 772 can be complementary to a plurality of first distribution channels 784, each of the first holes 582 and each of the sixth holes 772 being in fluid communication via a first passage of the first distribution channels 784. The first holes 582 can be openings to the first distribution channels 784 on the first outer surface 532, which are flush with and adjacent to the first outer surface 532. Likewise, the sixth holes 772 can be openings to the first distribution channels 784 and to the third passage 390, which are flush with a surface of a recess of the corrugated section 762.Additionally, the second holes 584 and the seventh holes 774 can be complementary to a plurality of second distribution channels 786, each of the second holes 584 and each of the seventh holes 774 being in fluid communication via a second passage of the second distribution channels 786. The second holes 584 can be openings to the second distribution channels 786 on the third outer surface 536, which are flush with and adjacent to the third outer surface 536. Likewise, the seventh holes 774 can be openings to the second distribution channels 786 to the third passage 390, which are flush with a surface of a recess of the corrugated section 762.

[0088] The spacing of the fourth inner diameter 748 can vary depending on the number of recesses in the corrugated section 762. The fourth inner diameter 748 can be largest where the radius of a first type of recess in the corrugated section 762 is greatest. The fourth inner diameter 748 can be at its minimum on portions of the fourth inner surface 738 at the intervals between the individual recesses of the corrugated section 762. The first region 712 and the second region 714 can each contain portions of the corrugated section 762.

[0089] Fig. Figure 8 shows a seventh view 800. The seventh view 800 is a sectional view that isolates shaft 354 from other components and features of the arrangement 202. Fig. 2-3 shows. The seventh view 800 can be seen as line 512 of the Fig. 4-6 correspond. The seventh view 800 is perpendicular to the longitudinal axis of the shaft 354, for example to the axis 410. For example, the y-axis of the reference axes 201 can run perpendicular and positive to the sixth view 700.

[0090] The seventh view 800 shows that the shaft 354 can have a variety of additional axes around which the features and components contained in the shaft can be centered. For example, the shaft 354 can have a second axis 812, a third axis 814, a fourth axis 816, a fifth axis 818, and a sixth axis 820. The second axis 812, the third axis 814, the fourth axis 816, the fifth axis 818, and the sixth axis 820 are not parallel to the axis 410. The second axis 812 can intersect the axis 410, and the second axis 812 can be oriented laterally with respect to the shaft 354. The third axis 814, the fourth axis 816, the fifth axis 818, and the sixth axis 820 can be positioned around the first axis 410. In one embodiment of the shaft 354, the third axis 814, the fourth axis 816, the fifth axis 818 and the sixth axis 820 cannot intersect the first axis 410.The third axis 814 and the fourth axis 816 can be parallel. Likewise, the fifth axis 818 and the sixth axis 820 can be parallel. The third axis 814 and the fourth axis 816 can intersect with the fifth axis 818 and the sixth axis 820. The third axis 814 and the fourth axis 816 can be perpendicular to the fifth axis 818 and the sixth axis 820.

[0091] The seventh view 800 shows the ninth holes 778. The ninth holes 778 can correspond to the eighth holes 776 on the corrugated section 762 on the opposite axis 410. The ninth holes 778 are complementary to the fourth holes 588 and can be in fluid communication with them.

[0092] A large number of the fifth holes 622 and the tenth holes 782 of Fig. Six can be centered around the second axis 812, so that the centerlines of the fifth holes 622 and the tenth holes 782 can be approximately collinear with the second axis 812. A multitude of the third holes 586 and the eighth holes 776 of Fig. 6 can be centered around the third axis 814, the fourth axis 816, the fifth axis 818, and the sixth axis 820, such that the centerlines of the third holes 586 and the eighth holes 776 can be approximately collinear with the aforementioned axes. A plurality of the fourth holes 588 of Fig. 5 and a multitude of the ninth holes 778 can be centered around the third axis 814, the fourth axis 816, the fifth axis 818 and the sixth axis 820, so that the center lines of the fourth holes 588 and the ninth holes 778 can be approximately collinear with the aforementioned axes.

[0093] A first plurality of third holes 586 and eighth holes 776 can be complementary to a plurality of third distribution channels 824, each of the third holes 586 and the eighth holes 776 being fluid-connected via a passage of the third distribution channels 824. The third holes 586 and the eighth holes 776 can be openings to the third distribution channels 824. The third holes 586 can be openings at the ends of the third distribution channels 824 opposite the eighth holes 776. Additionally, a second plurality of third holes 586 and the eighth holes 776 can be complementary to a plurality of fourth distribution channels 826, each of the third holes 586 and the eighth holes 776 being fluid-connected via a passage of the fourth distribution channels 826. The third holes 586 and the eighth holes 776 can be openings to the fourth distribution channels 826.The third holes 586 can be openings at the ends of the fourth distribution channels 826, which are opposite the eighth holes 776.

[0094] A first plurality of fourth holes 588 and ninth holes 778 can be complementary to a plurality of fifth distribution channels 828, each of the fourth holes 588 and the ninth holes 778 being fluid-communicated via a passage of the fifth distribution channels 828. The fourth holes 588 and the ninth holes 778 can be openings to the fifth distribution channels 828. The fourth holes 588 can be openings at the ends of the fifth distribution channels 828, opposite the ninth holes 778. Additionally, a second plurality of fourth holes 588 and the ninth holes 778 can be complementary to a plurality of sixth distribution channels 830, each of the fourth holes 588 and the ninth holes 778 being fluid-communicated via a passage of the sixth distribution channels 830. The fourth holes 588 and the ninth holes 778 can be openings to the sixth distribution channels 830.The fourth holes 588 can be openings at the ends of the sixth distribution channels 830, which are opposite the ninth holes 778.

[0095] The tenth holes 782 can be brought into fluid communication with the fifth holes 622 via a plurality of seventh distribution channels 822, wherein each of the tenth holes 782 and the fifth holes 622 can be brought into fluid communication via a passage of the seventh distribution channels 822. The tenth holes 782 and the fifth holes 622 can be openings to the seventh distribution channels 822. The tenth holes 782 can be openings at the ends of the seventh distribution channels 822, opposite the fifth holes 622.

[0096] The third distribution channels 824, the fourth distribution channels 826, the fifth distribution channels 828, the sixth distribution channels 830, and the seventh distribution channels 822 can be arranged approximately radially around the third passage 390. The third distribution channels 824 can be arranged symmetrically to each other. The fourth distribution channels 826 can be arranged symmetrically to each other. The fifth distribution channels 828 can be arranged symmetrically to each other. The sixth distribution channels 830 can be arranged symmetrically to each other. The seventh distribution channels 822 can be arranged symmetrically to each other. On the second side 408, the distribution channels can alternate between the third distribution channels 824, the fourth distribution channels 826, and the seventh distribution channels 822. The fourth distribution channels 826 can be arranged closest to the seventh distribution channels 822 relative to the third distribution channels 824.On the first page 406, the distribution channels can alternate in order between the fifth distribution channels 828, the sixth distribution channels 830, and the seventh distribution channels 822. The sixth distribution channels 830 can be located closest to the seventh distribution channels 822 relative to the fifth distribution channels 828. The third distribution channels 824 and the fourth distribution channels 826 can have approximately the same dimensions. Each of the third distribution channels 824 and each of the fourth distribution channels 826 can be adjacent and mirrored with respect to a distance between them. The fifth distribution channels 828 and the sixth distribution channels 830 can have approximately the same dimensions. Each of the fifth distribution channels 828 and each of the sixth distribution channels 830 can be adjacent and mirrored with respect to a distance between them.

[0097] In one embodiment, at least one pair of fifth holes 622 and one pair of tenth holes 782 can be present. The fifth holes 622 can comprise a first fifth hole 622a and a second fifth hole 622b. The tenth holes 782 can comprise a first tenth hole 782a and a second tenth hole 782b. The first fifth hole 622a and the first tenth hole 782a can be located on, or closest to, the first side 406. The second fifth hole 622b and the second tenth hole 782b can be located on, or closest to, the second side 408. Likewise, four of the third holes 586 and four of the eighth holes 776 can be present. There can also be four of the fourth holes 588 and four of the ninth holes 778. Each of the third holes 586 can be located on, or closest to, the second side 408 of the fourth holes 588. Likewise, any of the fourth holes can be 588 on the first side 406 or the closest of the third holes can be 586.The third holes 586 can comprise a first third hole 586a, a second third hole 586b, a third third hole 586c, and a fourth third hole 586d. The fourth holes 588 can comprise a first fourth hole 588a, a second fourth hole 588b, a third fourth hole 588c, and a fourth fourth hole 588d. The eighth holes 776 can comprise a first eighth hole 776a, a second eighth hole 776b, a third eighth hole 776c, and a fourth eighth hole 776d. The ninth holes 778 can comprise a first ninth hole 778a, a second ninth hole 778b, a third ninth hole 778c, and a fourth ninth hole 778d.

[0098] The first third hole 586a and the first eighth hole 776a can be centered around the fifth axis 818. The third fourth hole 588c and the third ninth hole 778c can be centered around the fifth axis 818. The second third hole 586b and the second eighth hole 776b can be centered around the sixth axis 820. The fourth fourth hole 588d and the fourth ninth hole 778d can be centered around the sixth axis 820. The third third hole 586c and the third eighth hole 776c can be centered around the fourth axis 816. The first fourth hole 588a and the first ninth hole 778a can be centered around the fourth axis 816. The fourth third hole 586d and the fourth eighth hole 776d can be centered around the third axis 814. The second fourth hole 588b and the second ninth hole 778b can be centered around the third axis 814.

[0099] The corrugated section 762 contains a plurality of recesses. The corrugated section 762 can, for example, comprise a plurality of first recesses 832 and second recesses 834. The first recesses 832 can be equidistant from one another. Likewise, each of the second recesses 834 can be equidistant from one another. In one embodiment, the first recesses 832 may not be in fluid communication via a distribution hole. In this embodiment, the second recesses 834 may be in fluid communication via a distribution hole, such as the tenth holes 782. The first fifth hole 622a may be in fluid communication with a second recess of the second recesses 834 that is closest to the first side 406 from the axis 410. Likewise, the second fifth hole 622b can be in fluid connection with a second recess of the second recesses 834, which is closest to the second side 408 from the axis 410.There can be at least one pair of first recesses 832 and one pair of second recesses 834. If at least one pair of first recesses 832 is present, the first recesses 832 can be arranged opposite each other. If at least one pair of second recesses 834 is present, each of the second recesses 834 can be arranged opposite each other. In this example, the first recesses 832 can be arranged vertically, so that a vertical line, e.g., a line parallel to the z-axis, can intersect both first recesses 832. Likewise, the second recesses 834 can be arranged laterally, so that a lateral line, e.g., a line parallel to the x-axis, can intersect both second recesses 834.

[0100] The corrugated section 762 can also include a plurality of third recesses 836 and a plurality of fourth recesses 838. The third recesses 836 can be located closest to the second side 408 when viewed from the axis 410. Likewise, the fourth recesses 838 can be positioned closest to the first side 406 when viewed from the axis 410. The third recesses 836 and the fourth recesses 838 can be arranged radially around the axis 410. The third recesses 836 can be located between the first and second recesses 832, 834. The fourth recess 838 can be located between the first and second recesses 832, 834.

[0101] The spacing of the material between the recesses can vary. The fourth internal diameter 748, for example, can vary with the spacing of the material between the different types of recesses. Each of the first spacings between the first recesses 832 and the third recesses 836 or fourth recesses 838 can include a first flank 846. There can be a plurality of first flanks 846, with a pair of first flanks 846 around each of the first recesses 832. Each of the second spacings between the second recesses 834 and the third recesses 836 or fourth recesses 838 can include a second flank 848. There can be a plurality of second flanks 848, with a pair of second flanks 848 around each of the second recesses 834. The first flanks 846 and the second flanks 848 can extend over the longitudinal length of the first recess 832 and the second recess 834, respectively.Each of the third intervals between the third recesses 836 can contain a first rib 842. Each of the fourth intervals between the fourth recesses 838 can contain a second rib 844. There can be multiple first ribs 842 and second ribs 844. The first ribs 842 and the second ribs 844 can extend along the longitudinal length of the third recess 836 and the fourth recess 838, respectively. The fourth inner diameter 748 can have a first interval on its first flanks 846 that is smaller than the intervals of the fourth inner diameter 748 on the surfaces of the recesses. The fourth inner diameter 748 can have a second interval on its second flanks 848 that is smaller than the intervals of the fourth inner diameter 748 on the surfaces of the recesses.The fourth inner diameter 748 can have a third spacing at the first ribs 842 that is smaller than the spacing of the fourth inner diameter 748 at the surfaces of the recesses. The fourth inner diameter 748 can have a fourth spacing at the second ribs 844 that is smaller than the spacing of the fourth inner diameter 748 at the surfaces of the recesses. The fourth inner diameter 748 can have the same spacing at locations on the surface of the first flanks 846 as at locations on the surface of the second flanks 848. The fourth inner diameter 748 can have the same spacing at positions on the surface of the first ribs 842 and at positions on the surface of the second ribs 844. The fourth inner diameter 748 can be larger in the first and second spacings around the first and second recesses than in the third spacing between the third recesses and in the fourth spacing between the fourth recesses.The first and second distance of the fourth inner diameter 748 on the first and second flank 846, 848 can, for example, be larger than the third and fourth distance of the fourth inner diameter 748 on the first and second rib 842, 844.

[0102] The first recesses 832, the second recesses 834, the third recesses 836, and the fourth recesses 838 can be curved and partially cylindrical, for example, semi-cylindrical. The curves of the first recesses 832, the second recesses 834, the third recesses 836, and the fourth recesses 838 can be smooth and have a low coefficient of friction. The first ribs 842 can extend radially inward from the curvature of the third recesses 836 toward the axis 410. The second ribs 844 can extend radially from the curvature of the fourth recesses 838 toward the axis 410.

[0103] The recesses can alternate in a series around the centerline of the central cavity or passage. As an example of an embodiment, the corrugated section 762 near the first side 406 from the axis 410 can alternately comprise a first recess of the first recesses 832, a first set of the fourth recesses 838, a second recess of the second recesses 834, a second set of the fourth recesses 838, and another first recess of the first recesses 832. Likewise, the corrugated section 762 closest to the second side 408 from the axis 410 can alternate between a first recess of the first recesses 832, a first group of third recesses 836, a second recess of the second recesses 834, a second group of third recesses 836, and another first recess of the first recesses 832.

[0104] Each of the third recesses 836 can be fluidically connected to a hole of the third holes 586. Each of the third holes 586 can have an opening that is flush with and adjacent to the surface of a complementary recess of the third recesses 836. Furthermore, each of the fourth recesses 838 can be fluidically connected to a hole of the fourth holes 588. Each of the fourth holes 588 can have an opening that is flush with and adjacent to the surface of a complementary recess of the fourth recesses 838. In one embodiment, the first third hole 586a and the second third hole 586b can each be fluidically connected to the surfaces of the third recesses 836 that are closest to the upper end of the shaft 354 and have an opening that is flush with them.The third hole 586c and the second hole 586d can each be in fluid contact with the surfaces of the third recesses 836 located closest to the lower end of the shaft 354 and have an opening flush with them. The first hole 588a and the second hole 588b can each be in fluid contact with the surfaces of the fourth recesses 838 located closest to the upper end of the shaft 354 and have an opening flush with them. The third hole 588c and the fourth hole 588d can each be in fluid contact with the surfaces of the fourth recesses 838 located closest to the lower end of the shaft 354 and have an opening flush with them.

[0105] The corrugated section 762 can have a certain number of second recesses arranged around the circumference between a plurality of first recesses or a plurality of first recesses and third recesses. In one embodiment, two of the third recesses 836 can be present in a set of third recesses 836. Likewise, two of the fourth recesses 838 can be present in a set of fourth recesses 838. A set of third recesses 836 can be arranged around the circumference of the corrugated section between a recess of the first recesses 832 and a recess of the second recesses 834. A set of fourth recesses 838 can be arranged around the circumference of the corrugated section 762 between a recess of the first recess 832 and a recess of the second recess 834.The third recesses 836 can be arranged symmetrically to each other and symmetrically to the first recesses 832 and the second recesses 834 around the circumference of the corrugated section 762. The fourth recesses 838 can be arranged symmetrically to each other and symmetrically to the first recesses 832 and the second recesses 834 around the circumference of the corrugated section 762.

[0106] The third recesses 836 include, for example, a first third recess 836a and a second third recess 836b. The first third recess 836a and the second third recess 836b may be located closest to the bottom of the shaft 354. The first third recess 836a may be located closest to a first recess of the first recesses 832. The second third recess 836b may be located closest to a second recess of the second recesses 834. The volumes of the first third recess 836a and the second third recess 836b may be separated by a rib of the first ribs 842. The fourth eighth hole 776d may adjoin the surfaces of the first third recess 836a, with the opening being flush with the surfaces of the first third recess 836a. The third eighth hole 776c can adjoin the surfaces of the second third recess 836b, with the opening being flush with the surfaces of the second third recess 836b.The first third recess 836a and the second third recess 836b can be centered around the fifth axis 818 and the sixth axis 820, respectively. An additional group of third recesses 836 can mirror the first third recess 836a and the second third recess 836b at the upper end of the shaft 354 above the second axis 812.

[0107] In this or another example, the fourth recesses 838 comprise a first fourth recess 838a and a second fourth recess 838b. The first fourth recess 838a and the second fourth recess 838b may be located closest to the bottom of the shaft 354. The first fourth recess 838a may be located closest to a first recess of the first recesses 832. The second fourth recess 838b may be located closest to a second recess of the second recesses 834. The volumes of the first fourth recess 838a and the second fourth recess 838b may be separated by a rib of the second ribs 844. The fourth ninth hole 778d may adjoin the surfaces of the first fourth recess 838a, with the opening being flush with the surfaces of the first fourth recess 838a.The third ninth hole 778c can adjoin the surfaces of the second fourth recess 838b, with the opening being flush with the surfaces of the second fourth recess 838b. The first fourth recess 838a and the second fourth recess 838b can be centered about the fifth axis 818 and the sixth axis 820, respectively. An additional group of fourth recesses 838 can mirror the first fourth recess 838a and the second fourth recess 838b at the upper end of the shaft 354 above the second axis 812.

[0108] The lengths of the first recess 832, the second recess 834, the third recess 836, and the fourth recess 838 can run longitudinally along the shaft 354. The first recess 832, the second recess 834, the third recess 836, and the fourth recess 838 can have the same length, e.g., the fourth recess 832. The first recesses 832 can have surfaces with a curvature of a first radius 852. The second recesses 834 can have surfaces with a curvature of a second radius 854. The third recesses 836 can have surfaces with a curvature of a third radius 856. The fourth recesses 838 can have surfaces with a curvature of a fourth radius 858. The first radius 852 can have a larger distance than the third and fourth radii 856, 858. The second radius 854 can have a larger distance than the third and fourth radii 856, 858.The first radius 852 and the second radius 854 can be approximately equidistant. Likewise, the third radius 856 and the fourth radius 858 can be approximately equidistant. The tenth holes 782 can have a radius complementary to and adjacent to the second radius 854, so that the tenth holes 782 can abut the surfaces of the second recesses 834. The eighth holes 776 can have a radius complementary to and adjacent to the third radius 856, so that the eighth holes 776 can abut the surfaces of the third recesses 836. The ninth holes 778 can have a radius complementary to and adjacent to the fourth radius 858, so that the ninth holes 778 can abut the surfaces of the fourth recesses 838.

[0109] The fluid can be forced out of the third passage 390 by a force, e.g., a centripetal force due to the rotation of the shaft 354. Fluid entering the volume of the second recess 834, the third recess 836, and the fourth recess 838 can be forced radially outward and out of the third passage 390 by the force. The curvature of the second radius 854 and the force can drive fluid in the volume of the second recesses 834 to the tenth holes 782, for example, to the first and / or second tenth holes 782a, 782b. Through the tenth holes 782, fluid can be directed via the seventh distribution channels 822 and the fifth holes 622 to the outer surfaces of the shaft 354 and the outer surface 404. Likewise, the curvature of the third radius 856 and the force can drive fluid in the volume of the third recess 836 to the eighth holes 776.The fluid can be directed through the eighth holes 776 via the third distribution channels 824 or fourth distribution channels 826 and the third holes 586 to the outer surfaces of the shaft 354 and the outer surface 404. Furthermore, the curvature of the fourth radius 858 and the force can drive the fluid in the volume of the fourth recess 838 to the ninth holes 778. The fluid can be directed through the ninth holes 778 via fifth distribution channels 828 or sixth distribution channels 830 and the fourth holes 588 to the outer surfaces of the shaft 354 and the outer surface 404.

[0110] Fig. Figure 9 shows an eighth view 900 of a part of the shaft 354. The eighth view 900 can be directed towards the first region 712, the first region 712 being isolated from other components and features of the shaft 354.

[0111] The eighth view 900 shows that each of the first holes 582, the sixth holes 772, and the first distribution channels 784 can be centered around a first centerline 922. The first centerline 922 can be a central axis around which the first hole 582 can be radially positioned and extend with it. There can be a plurality of first centerlines 922. Each of the first centerlines 922 can be a central axis around which each of the first holes 582, the sixth holes 772, and the first distribution channels 784 can be radially positioned and extend with it. Each of the first centerlines 922 can extend at a first angle 920 to an axis 918. The first angle 920 can also extend from the first outer surface 532. The axis 918 can be parallel to the axis 410 of Fig. 4-7 and the center line of wave 354.

[0112] As outer openings, each of the first holes 582 can have a first edge 932 that adjoins and is flush with the first outer surface 532. As inner openings, each of the sixth holes 772 can have a second edge 934 that adjoins and is flush with the fourth inner surface 738. The second edge 934 can be flush with a portion of the corrugated section 762, for example, with the surfaces of a recess. As an example of an embodiment of the shaft 354, the second edge 934 can be flush with the surfaces of a recess of the first recess 832 of Fig. 8 and adjoin it. The second edge 934 can be complementary, so that it curves and connects to the radius of a recess, like the first radius 852 in Fig. 8. Fluid can exit the third passage 390 and the corrugated section 762 via the sixth holes 772. Fluid can flow through the first distribution channels 784 between the sixth holes 772 and the first holes 582. Fluid can exit the first distribution channels 784 via the first holes 582. Fluid can be distributed via the first holes 582 onto the first outer surface 532 and the outer surface 404.

[0113] A warehouse or warehouse arrangement, such as the first warehouse 360 ​​in Fig. 3. The bearing or bearing assembly can be positioned around the first holes 582. The bearing or bearing assembly can support the first outer surface 532, e.g., the areas around the first holes 582. Working fluid, such as lubricant and / or coolant, can be directed from the corrugated section to a bearing or bearing assembly through the first holes 582. The lubricant and / or coolant can be an oil.

[0114] There can be a plurality of first holes 582 and sixth holes 772 arranged radially around the third passage 390. There can be a plurality of first distribution channels 784 extending from the fourth inner surface 738 to the first outer surface 532 and arranged radially around the third passage 390. The first holes 582 can distribute fluid from the third passage to the first outer surface 532, to the outer surface 404, and to a bearing or bearing assembly arranged around the first holes 582.

[0115] Fig. Figure 10 shows a ninth view 1000 of a part of the shaft 354. The ninth view 1000 can be directed towards the second area 714, the second area 714 being isolated from other components and features of the shaft 354.

[0116] The ninth view 1000 shows that each of the second holes 584, the seventh holes 774, and the second distribution channels 786 can be centered around a second centerline 1022. There can be a plurality of second centerlines 1022. Each of the second centerlines 1022 can be a central axis around which the second holes 584, the seventh holes 774, and the second distribution channels 786 can be arranged radially and extend with them. Each of the second centerlines 1022 can extend at a second angle 1020 to an axis 1018. The second angle 1020 can also extend from the first outer surface 532. The axis 1018 can be parallel to the axis 410 of Fig. 4-7 and the center line of wave 354.

[0117] As outer openings, each of the second holes 584 can have a third edge 1032 that adjoins and is flush with the third outer surface 536. As inner openings, each of the seventh holes 774 can have a fourth edge 1034 that adjoins and is flush with the fourth inner surface 738. The fourth edge 1034 can be flush with a portion of the corrugated section 762, for example, at the surfaces of a recess. As an example of an embodiment of the shaft 354, the fourth edge 1034 can be flush with and adjoin the surfaces of a recess, such as a recess of the first recess 832 in Fig. 8. The fourth edge 1034 can be complementary, e.g. curved and adjacent to the radius of a recess, like the first radius 852 in Fig. 8. Fluid can exit the third passage 390 and the corrugated section 762 via the seventh holes 774. Fluid can flow through the second distribution channels 786 between the seventh holes 774 and the second holes 584. The fluid can exit the second distribution channels 786 via the second distribution holes 584. The fluid can be distributed via the second holes 584 onto the third outer surface 536 and the outer surface 404.

[0118] A warehouse or warehouse arrangement, such as the second warehouse 362 in Fig. 3. The bearing or bearing assembly can be positioned around the second holes 584. The third outer surface 536 can support, for example, the areas around the second holes 584. Working fluid, such as lubricant and / or coolant, can be directed from the corrugated section 762 to a bearing or bearing assembly through the second holes 584. The lubricant and / or coolant can be an oil.

[0119] There can be a plurality of second holes 584 and seventh holes 774 arranged radially around the third passage 390. There can be a plurality of second distribution channels 786 extending from the fourth inner surface 738 to the third outer surface 536 and arranged radially around the third passage 390. The second holes 584 can distribute fluid from the third passage 390 to the third outer surface 536, to the outer surface 404, and to a bearing or bearing assembly arranged around the second holes 584.

[0120] In this way, an oil distribution system can be incorporated as a component and feature of a shaft, with the oil distribution system having no lines that are not part of the shaft. The oil distribution system can be a shell-shaped oil distributor formed by or enclosed within a rotor shaft. Alternatively, the oil distribution system can be a shell-shaped oil distributor formed by or contained within a sleeve, which may be rotaryally coupled to a drive shaft, for example, via a physical coupling. The shell-shaped oil distribution system can be formed from a multitude of recesses with a multitude of recess types. The recesses can be curved recesses with varying radii.A first recess of a first type can have a curvature with a first radius, and a second recess of a second type can have a curvature with a second radius, the first and second radii being spaced apart. The recesses can be corrugated, which can alternatively be called indentations. A plurality of distribution holes are aligned with the curvature of the recesses, such that the distribution holes can have an opening adjacent to and flush with the indentations of the complementary recesses. The distribution holes are complementary to a plurality of distribution channels (e.g., distribution channels), so that fluid entering the distribution hole can flow into the distribution channel. Fluid, such as...Oil can be transported from a corrugated shaft to the distribution channel via the distribution holes, and from the distribution holes, via the distribution channel, to an outer surface of the shaft. The fluid guided from the recesses through the distribution holes can be used for lubrication, cooling, and temperature reduction of shaft components and any electrical machinery surrounding the shaft.

[0121] As in another representation, an oil distribution system in an electric machine, comprising: a shell-shaped oil distributor formed in a rotor shaft or sleeve and containing a plurality of curved recesses with varying radii; and a plurality of distribution channels formed in the rotor shaft and aligned with the curved recesses in the shell-shaped oil distributor.

[0122] Although various embodiments have been described above, it should be clear that these serve only as examples and do not constitute limitations. Those skilled in the art will recognize that the disclosed subject matter can be implemented in other specific forms without departing from the spirit of the subject matter. The embodiments described above are therefore to be regarded in every respect as illustrative and not as limiting. Thus, the configurations and routines disclosed here are exemplary in nature, and the specific examples are not to be considered limiting, as numerous variations are possible. The technology described above can, for example, be applied to powertrains that include various types of power sources, including different types of propulsion motors, internal combustion engines, and / or transmissions.The subject matter of the present disclosure includes all novel and non-obvious combinations and sub-combinations of the various systems and configurations, as well as other features, functions and / or properties disclosed herein.

[0123] It is understood that the configurations and routines disclosed herein are exemplary and that these specific embodiments are not to be considered limiting, as numerous variations are possible. Unless expressly stated otherwise, the terms "first," "second," "third," etc., do not denote any order, position, quantity, or significance, but serve only to distinguish the individual elements. The subject matter of this disclosure includes all novel and non-obvious combinations and sub-combinations of the various systems and configurations, as well as other features, functions, and / or properties disclosed herein.

[0124] The following claims highlight in particular certain combinations and subcombinations that are to be considered novel and not obvious. These claims may refer to "one" element or "a first" element, or the equivalent thereof. Such claims are to be understood as including one or more such elements, with two or more such elements neither required nor excluded. Other combinations and subcombinations of the disclosed features, functions, elements, and / or properties may be claimed by amending the present claims or by filing new claims in this or a related application. Such claims, whether they have a broader, narrower, the same, or different scope than the original claims, are also to be considered as included in the subject matter of the present disclosure.

Claims

[1] Lubricant distribution system, comprising: a shaft with a shell-shaped portion having a plurality of corrugated recesses arranged to receive fluid and distribute the fluid onto the bearings of a traction motor, the radii of the corrugated recesses varying; and a multitude of distribution holes arranged near the perimeter of the shell-shaped part. [2] Lubricant distribution system according to claim 1, wherein the shaft is a rotor for the traction motor. [3] Lubricant distribution system according to claim 1 or 2, wherein the shaft is hollow and has a sleeve around a hollow part, and the hollow part of the shaft contains the shell-shaped part and the hollow part does not contain any tubes that are in fluid communication with the distribution holes. [4] Lubricant distribution system according to claim 3, wherein the shell-shaped part has at least a plurality of first recesses and a plurality of first distribution holes, each of the first distribution holes having a radius adjacent to the radius of a complementary first recess of the first recesses. [5] Lubricant distribution system according to claim 4, wherein each of the first distribution holes brings the complementary first recess into fluid contact with an outer surface of the shaft. [6] Lubricant distribution system according to claim 5, wherein each of the first distribution holes is complementary to a first distribution channel and a first outer hole, such that each of the first distribution holes and each of a plurality of first outer distribution holes are openings to the first distribution channel and each of the first recesses is in fluid communication with the outer surface via a complementary distribution channel of the first distribution channel. [7] Lubricant distribution system according to claim 5 or 6, wherein each of the first recesses has a first length that extends parallel to a longitudinal axis and a centerline of the shaft. [8] Lubricant distribution system according to claim 7, wherein the shell-shaped part has at least a plurality of second recesses, wherein the second recesses have a second length parallel to the first length, wherein the first recesses have a first radius and the second recesses have a second radius. [9] Lubricant distribution system according to claim 8, wherein the shell-shaped part has at least a plurality of second distribution holes, each of the second distribution holes having a radius adjacent to the radius of a complementary second recess of the second recesses. [10] Lubricant distribution system according to claim 9, wherein each of the second distribution holes brings the complementary second recess into fluid contact with an outer surface of the shaft. [11] Lubricant distribution system according to claim 10, wherein each of the second distribution holes is complementary to a second distribution channel and a second outer hole, such that each of the second distribution holes and each of a plurality of second outer distribution holes are openings to each of a plurality of second distribution channels, to each of the second recesses, so that each of the second recesses is in fluid communication with the outer surface via the second distribution holes. [12] Lubricant distribution system according to one of claims 9 to 11, wherein a plurality of third recesses are provided, wherein the third recesses have a third length parallel to the first length, wherein the third recesses have a third radius, wherein the third radius has a different distance than the second radius, and a third distance between a third recess of the third recesses and a second recess of the second recesses has a greater distance than the second distance. [13] Traction motor system comprising the lubrication system according to claim 1.

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