Oil guide channel component for assembly into a transmission, and transmission equipped with the oil guide channel component.

Abstract

The proposal relates to an oil guide channel part (1) for installation in a transmission (100), in particular in an automotive transmission, which comprises a guide channel (2) having a receiving opening (11) and a discharge opening (12), which guide channel (2) has an oil guide direction (F) from the receiving opening (11) to the discharge opening (12) and a circumferentially closed channel wall (21) perpendicular to the oil guide direction (F), which further comprises at least one oil collecting area (13a) for storing oil guided through the guide channel (2), and which comprises at least one outlet (15a) for oil from the at least one oil collecting area (13a). It is proposed that at least one oil collecting area (13a) comprises a first reservoir (13) having a first reservoir wall (25) and a first reservoir bottom (24) and a second reservoir (14) having a second reservoir wall (27) and a second reservoir bottom (26), the guide channel (2) being adjacent to the first reservoir wall (25) and the second reservoir wall (27), and, viewed in the oil guide direction (F) of the guide channel (2), the first reservoir bottom (24) is arranged between the receiving opening (11) and the discharge opening (12) and the second reservoir bottom (26) is arranged between the receiving opening (11) and the first reservoir bottom (24).

Description

[Background technology]

[0001] In conventional technology, automotive transmissions are used, in particular, in combination with electric drive mechanisms. Here, the transmission elements must be lubricated with oil, as in conventional transmissions. To improve transmission efficiency and reduce costs, the oil pump for transmission lubrication, commonly used in conventional transmissions, can be omitted. Lubrication and cooling of the transmission elements are preferably performed by passive oil distribution. Lubrication of the rotating transmission elements is crucial for the reliability of the transmission. Insufficient lubrication can lead to insufficient oil supply to the bearings and seal rings of the transmission elements. This can increase wear on the transmission elements and potentially lead to failure.

[0002] From German Patent No. 10102017108748, an oil guide channel component for assembly into an automobile transmission is known. The transmission described comprises a transmission housing and at least one transmission gear disposed within the transmission housing, the transmission gear being at least partially located within the transmission's oil sump. The rotating transmission gear rolls partially through the oil sump, picking up oil in the process. This process is often referred to in technical terms as splashing (Planschen). In order to accurately distribute the oil picked up by the transmission gear within the transmission, the prior art uses an oil guide channel component shaped like a spectacle, which can be inserted into the transmission as an insert component. The oil guide channel component comprises several covers and a guide channel having an inlet opening and an outlet opening, the guide channel having an oil guidance direction from the inlet opening to the outlet opening and a channel wall closed circumferentially perpendicular to the oil guidance direction. In German Patent No. 10102017108748, the channel wall is formed by a semi-circular hollow body curved around the gear shaft of the transmission gear of the transmission, and the semi-circular hollow body is located primarily above the fluid level of the transmission oil sump in a given assembled state of the oil guide channel component. The curved guide channel has a receiving opening for receiving oil, configured as a catch mouth, and the oil is lifted by another transmission gear that meshes with the transmission gear surrounded by the semi-circular hollow body and further transported by the second transmission gear to the catch mouth. Here, the end section of the semi-circular hollow body, formed closed except for a throttle hole on the opposite side of the catch mouth, forms an oil collection area for storing the oil transported through the guide channel. The throttle hole forms the sole discharge opening of the guide channel and therefore simultaneously serves as an outlet for oil from at least one oil collection area.The throttle hole is located vertically above the meshing region of the two transmission gears. Therefore, the flow of the oil flowing out falls into the meshing region, wetting the contact surface of the gears.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Means for Solving the Problems

[0004] The present invention relates to an oil guide channel component for assembly to a transmission, particularly for assembly to an automotive transmission. The oil guide channel component includes a guide channel having an inlet opening and an outlet opening. The guide channel has an oil guiding direction from the inlet opening to the outlet opening and a channel wall closed in the circumferential direction perpendicular to the oil guiding direction. The oil guide channel component further includes at least one oil collection region for storing the oil guided through the guide channel, and the oil guide channel component includes at least one outlet for the oil from the at least one oil collection region. According to the present invention, the at least one oil collection region includes a first storage tank having a first tank wall and a first tank bottom, and a second storage tank having a second tank wall and a second tank bottom. The guide channel is adjacent to the first tank wall and the second tank wall. When viewed in the oil guiding direction of the guide channel, the first tank bottom is disposed between the inlet opening and the outlet opening, and the second tank bottom is disposed between the inlet opening and the first tank bottom.

[0005] Furthermore, the present invention relates to a transmission, particularly an automotive transmission, comprising a transmission housing, an oil guide channel component having the above-described features disposed within the transmission housing, and a transmission gear disposed within the transmission housing, wherein the transmission gear is at least partially disposed within the oil sump of the transmission, the oil guide channel component is disposed within the transmission housing in a predetermined assembled state that defines the orientation of the oil guide channel component within the transmission housing relative to gravity, the receiving opening is positioned on the end face of the transmission gear disposed at least partially within the oil sump, the oil guide direction from the receiving opening to the discharge opening has at least one component that moves against gravity, and at least a first tank bottom is disposed above the transmission gear.

[0006] In the context of this application, "oil" means a liquid lubricant suitable for a transmission, whether or not it is commercially available as an oil. For example, it may be a lubricant called ATF (Automatic Transmission Fluid) or a similar substance. Preferably, it is MTF.

[0007] A predetermined assembly state that defines the orientation of an oil guide channel component within a transmission relative to gravity means an assembly state that represents a specific orientation of the oil guide channel component relative to the transmission housing, given that the orientation of the transmission relative to the Earth's gravitational field is known. The orientation of the transmission relative to the Earth's gravitational field is generally known with respect to the transmission's normal position, which is the position in which the transmission is oriented relative to gravity in its intended use. If the transmission is an automotive transmission, the transmission takes a specific orientation relative to Earth's gravity when the vehicle is oriented horizontally to the Earth's gravitational field in its normal position. This is true regardless of whether the vehicle is actually moving horizontally to the Earth's gravitational field or traveling on an inclined slope. Therefore, from the known assembly positions of the transmission in an automotive, it is possible in principle to derive a method by which the oil guide channel component can be positioned within the transmission such that it takes a specific orientation relative to gravity in its normal position.

[0008] The component of the oil guidance direction that moves against gravity from the receiving opening to the discharge opening means that the oil guidance direction, when broken down into moving components, has at least one component or moving component that is directed against gravity. In this regard, the entire oil guidance direction does not necessarily have to move counter-parallel to the direction of gravity. For example, the oil guidance direction can move obliquely to gravity, or conversely, parallel to gravity.

[0009] An oil guide channel component refers to a component having at least one guide channel for oil transport. An oil guide channel component can be configured to distribute oil supplied to it within the component under the influence of gravity. In particular, an oil guide channel component can be configured as an insert component inserted into a transmission during transmission assembly. Oil guide channel components can be made from plastic, metal, or a composite of plastic and metal. An oil guide channel component can consist of one or more pieces. In particular, it is possible to assemble an oil guide channel component from two or more shell components mechanically connected to each other by snap or clip connections.

[0010] In the context of this application, with respect to a hypothetical reference point, the terms "down" or "below" refer to a position lower in the direction of gravity, and the terms "up" or "above" refer to a position higher in the direction of gravity, where the orientation of the oil guide channel component corresponding to a given assembly state is assumed.

[0011] The transmission oil sump refers to the area within the transmission housing where oil is stored under the influence of gravity. The transmission gears, at least partially located within the transmission oil sump, refer to the gears whose lower portion is submerged in the oil sump in the direction of gravity, while their upper portion is outside the oil sump. When the transmission gears rotate, they draw oil from the oil sump and transport it against gravity to a point of discharge or ejection (Abschlagpunkt). This process is called "splashing." Here, the circulation and transport performance of the oil through the transmission gears depends directly on speed and, with respect to viscosity, also on temperature. The amount of oil transported from the oil sump to the transmission gears causes the oil level in the oil sump to drop during operation. Therefore, the transmission gears can be considered oil-transporting transmission gears. Here, at higher rotational speeds within the transmission housing, the oil splashed by the transmission gears and possibly further transmission gears may reach locations where it cannot immediately return to the oil sump. However, the oil sump must contain an appropriate amount of oil to ensure that sufficient oil is delivered from the transmission gears and that the transmission operates without drying out. On the other hand, too much oil in the oil sump is undesirable because it increases the unfavorable drag losses of the transmission. Therefore, as a compromise, it is desirable to supply the amount of oil delivered by the transmission gears to the transmission's lubrication points as accurately as possible to avoid splash losses, while also being able to lower the oil level in the oil sump to a level that minimizes the drag losses of the transmission. This is achieved by oil guide channel components. Advantages of the invention The oil guide channel component according to the present invention enables precise oil supply to the bearings of rotating transmission elements inside the transmission housing. This is achieved by having at least one oil collection area comprising a first storage tank having a first tank wall and a first tank bottom, and a second storage tank having a second tank wall and a second tank bottom, wherein the guide channel is adjacent to the first and second tank walls, and, viewed in the oil guidance direction of the guide channel, the first tank bottom is positioned between the receiving opening and the discharge opening, and the second tank bottom is positioned between the receiving opening and the first tank bottom.

[0012] Since the lubrication points within the transmission are located in different vertical positions, the oil must be transported upward from the oil sump at the bottom of the transmission housing to the input shaft, with lubrication points located along the way. Here, a two-stage oil collection area comprising a second storage tank having a second tank bottom positioned between an receiving opening and a first tank bottom advantageously enables more easily transporting the oil to lubrication points located in different vertical planes relative to gravity.

[0013] The oil guide channel component is particularly advantageous in that it is formed to be installed in a transmission in a predetermined assembly state that defines the orientation of the oil guide channel component relative to gravity, and in the orientation corresponding to the predetermined assembly state, the first and second tank bottoms are oriented substantially perpendicular to gravity, and the oil guide direction from the receiving opening to the discharge opening extends against gravity. The oil guide channel component according to the present invention can be assembled in a transmission such that, in a predetermined assembly state, the receiving opening of the guide channel can be positioned at the end face of the transmission gear of the transmission, and the tank bottom can be positioned above the transmission gear. Oil taken into the guide channel through the receiving opening can be transported against gravity to the discharge opening, and oil exiting the discharge opening can be stored in the first storage tank.

[0014] In contrast to solutions known from the prior art in which the oil collection region forms the end region of a semi-circular hollow body curved around the gear shaft, the present invention includes first and second storage tanks in the oil collection region. At least the first oil storage tank may be located above the oil transport transmission gear. The second oil storage tank may be located below the first oil storage tank and may be located in the direction of gravity, for example, at least partially below or above all or part of the end face of the oil transport transmission gear. The storage of oil in the first and second storage tanks causes the oil sump at the bottom of the transmission housing to descend during operation. The guide channel is formed as a simple, circumferentially closed channel that can extend linearly from the receiving opening to the discharge opening, preferably over 80% of its longitudinal extension. The opening cross section of the receiving opening may correspond to the opening cross section of the discharge opening. The guide channel having a circumferential channel wall becomes a guide channel integrated with the oil guide channel component.

[0015] In contrast to conventional technology, the oil guide channel component is designed so that oil is stored in first and second reservoirs outside the guide channel, rather than being stored within the guide channel itself. This is advantageous because, during operation, the stored oil contained in the first and second reservoirs can be used first to supply the lubrication points, thus ensuring adequate lubrication of the transmission bearings even during speed fluctuations. At least one outlet, but preferably multiple outlets, can be present in the first and second reservoirs to provide oil to various bearings within the transmission. Advantageous, compared to conventional technology, the amount of oil transported through the guide channel during operation can be designed independently of the amount of oil flowing out from the oil collection area through the outlets. The guide channel is used solely to fill the first and second reservoirs, and the outflow of oil from the first and second reservoirs can be controlled by the geometric design of the reservoirs and the geometric design of the assigned outlets. Thus, the oil supply to the bearing points of the transmission elements can be advantageously optimized both positionally and over time. Therefore, in particular, improved lubrication of bearing points is achieved in transmissions where rotating transmission elements are arranged in overlapping planes relative to gravity.

[0016] Advantageously, the first and second reservoirs can be used as intermediate reservoirs, providing faster lubrication when the electromechanism driving the transmission restarts, even if the downtime of the electromechanism is short. For longer downtimes, optionally, the first and / or second reservoirs can be completely emptied towards the oil sump through small outlet openings at the bottom of each reservoir. However, the outlet openings are not necessarily required.

[0017] Advantageous embodiments and variations of the present invention are enabled by the features presented in the cited claims. Advantageously, the end of the channel wall of the guide channel on the opposite side of the receiving opening can protrude beyond the first tank bottom of the first storage tank, forming a wall that defines a discharge opening. Thus, oil flowing over this wall can, advantageously, flow directly into the first storage tank and fill it.

[0018] Advantageously, the guide channel may be continuously closed from the receiving opening to the discharge opening and may be formed linearly over at least 80% of its longitudinal extension. This allows the oil supplied to the guide channel to be transported as unobstructedly as possible toward the discharge opening. The linear guide channel may be oriented within the transmission, in particular, such that a portion extends tangentially to the end face of the transmission gear in a given assembly state. The receiving opening of the guide channel may be formed, for example, as a catch mouth, and the periphery of the receiving opening may be chamfered in accordance with the tangential angle of the guide channel, thereby bringing the receiving opening as close as possible to the end face of the transmission gear. Here, the contour of the periphery can be adapted to the radius of curvature of the end face of the transmission gear. In the orientation of the oil guide channel component corresponding to a given assembly state, the oil exiting the discharge opening of the guide channel flows in the direction of gravity and collects in a first reservoir, thereby filling the first reservoir.

[0019] The second storage tank can be easily filled with oil flowing from the first storage tank over the first dam. As a result, the first storage tank is first filled to the height of the first dam. As soon as it reaches this height, the oil in the oil guide channel component flows over the first dam towards the second storage tank.

[0020] Advantageously, the first storage tank has at least one first outlet, and the second storage tank has at least one second outlet, and oil reaches the second outlet from the second storage tank, particularly over the second dam. The at least one first outlet and the at least one second outlet can supply lubricating oil to different bearings located in different vertical planes within the transmission. Here, the oil supply to the bearings is advantageously "passive," i.e., by the outflow of oil through the outlets assigned to each.

[0021] Furthermore, the first storage tank may be provided with a partition wall rising from the bottom of the first tank, the partition wall dividing the first storage tank into at least two sub-regions, with a discharge opening that opens toward the first sub-region and the second sub-region connected to the first sub-region through a notch in the partition wall. When the first storage tank is filled, the oil flows over the partition wall and reaches both sub-regions. From the second sub-region, the oil is first guided toward the first sub-region through the notch. Here, the partition wall may be formed in particular as a surge breaker and may have a bottom end point facing the discharge opening, from which a sub-wall bent backward in the opposite direction extends toward a first outlet and a third outlet. The oil exiting the discharge opening of the guide channel hits the bottom end point and is divided into two sub-flows, which flow toward the outlets on opposite sides of each other.

[0022] Particularly advantageously, the oil guide channel component according to the invention can be used in combination with a transmission, and the oil guide channel component can be used within the transmission housing of the transmission. The transmission comprises at least one transmission gear arranged within the transmission housing, and the transmission gear is at least partially arranged within the oil sump of the transmission. The oil guide channel component is arranged within the transmission housing in a predetermined assembly state that defines the orientation of the oil guide channel component within the transmission housing with respect to gravity, the receiving opening is positioned on the end face of the transmission gear that is at least partially arranged within the oil sump, the oil guiding direction from the receiving opening to the discharge opening has at least one component that proceeds against gravity, and at least the first tank bottom is arranged above the transmission gear.

[0023] During operation, the oil lifted from the oil sump by the transmission gear advantageously reaches the receiving opening and further reaches the discharge opening along the oil guiding direction of the guiding channel.

[0024] Advantageously, the first storage tank is provided with at least one first outflow opening, the second storage tank is provided with at least one second outflow opening, the outflow opening of the first outflow opening supplies oil to the bearing of the first transmission element, particularly the bearing of the input side rotor shaft attached to the transmission, and the outflow opening of the second outflow opening supplies oil to the bearing of the second transmission element, particularly the bearing of the pinion. Oil can be supplied to various bearings of the transmission elements of the transmission via the first outflow opening and the second outflow opening, and optionally further outflow openings.

[0025] Hereinafter, possible embodiments of the invention will be described with reference to the accompanying drawings.

Brief Description of the Drawings

[0026] [Figure 1] A cross-sectional view through an automotive transmission driven by an electromechanical device (not shown) and into which an oil guide channel component can be inserted. [Figure 2] A perspective view of an exemplary embodiment of an oil guide channel component for assembly into a transmission according to the present invention. [Figure 3] A cross-sectional view of a transmission including a transmission housing corresponding to the structure in FIG. 1 with the oil guide channel component inserted in a predetermined assembled state as shown in FIG. 2.

MODE FOR CARRYING OUT THE INVENTION

[0027] FIG. 1 shows a drive device for an automobile including a transmission 100. The description of the transmission serves to explain the usability of an oil guide channel component further described below.

[0028] The transmission 100 is connected on the input side to an electromechanical device (not shown) having a rotor shaft 103. The rotor shaft 103 is pivotally supported by two bearings 175, 175b and meshes with a gear 104 non-rotatably connected to the drive shaft 101 or an intermediate shaft of the transmission. The drive shaft 101 is rotatably pivotally supported at two axially spaced bearing points 171 and 172 within a transmission housing (not shown in FIG. 1) over its outer periphery.

[0029] Furthermore, the transmission 100 also includes a clutch mechanism 120, which is controllable, for example, preferably by an electrically operated rotary actuator 123. The electric actuator 123 can act on a clutch element 121, for example, via a spindle drive and a shift fork 129, and the clutch element 121 is supported on a guide hub (not visible in Figure 1) so as to be axially slidable. The clutch element 121 is formed, for example, in a ring shape and can rotate relative to the shift fork 129. The clutch element 121 may have an internal gear row that engages with the external gear row of the guide hub, so that the clutch element 121 is slidable relative to the guide hub parallel to the axis of the drive shaft 101. The guide hub and the clutch element 121 engaged with it are supported on the drive shaft 101 so as not to rotate relative to each other. Furthermore, a connecting element 122 is also provided, which is coupled to the pinion 106 so as not to rotate relative to each other. The pinion 106 is rotatably supported on the drive shaft 101 by a bearing 176, for example, formed as a needle bearing. The coupling element 122 may have an external gear. When the rotary actuator 123 is actuated, the spindle drive slides the clutch element 121 axially via the shift fork until the internal gear of the clutch element 121 engages with the external gear of the coupling element 122, thereby coupling the clutch element 121 to the coupling element 122 in a way that prevents relative rotation. In this coupling, the gear 104, drive shaft 101, guide hub, clutch element 121, coupling element 122, and pinion 106 rotate as a block around the axis of the drive shaft 101. In disengagement, the rotary actuator 123 pulls the clutch element 121 away from the coupling element 122 to the right in Figure 1, thereby releasing the coupling between the pinion 106 and the drive shaft 101. Here, the pinion 106 can rotate around the drive shaft 101.

[0030] The pinion 106 meshes with the transmission gear 107. The transmission gear 107 is coupled to the differential 130 in a manner that prevents relative rotation. The differential 130 includes an output shaft 102 in the form of a first output shaft 102a and a second output shaft 102b that can be rotated together with the differential 130. The transmission gear 107 is fixedly connected to the differential cage 108 of the differential 130. As shown in Figure 3, the differential 130 can be integrated into the transmission housing 140 of the transmission 100.

[0031] As already mentioned, in the disengaged state, the connection between the pinion 106 and the drive shaft 101 is released by the clutch mechanism 120. Now, if the electromechanism is further switched off while the vehicle is running, for example, the rotor shaft 103 and the drive shaft 101 are no longer driven. Now, the wheels of the vehicle, which are still rolling, drive the transmission gear 107 via the output shaft 102, and the transmission gear 107 is meshed with the pinion 106, so that the pinion 106 rotates around the drive shaft 101. Even in this state, it must be ensured that the bearing 176 of the pinion 106, which is located above the oil sump of the transmission 100, is adequately supplied with oil.

[0032] Figure 2 shows an exemplary embodiment of an oil guide channel component 1 according to the present invention, which may be intended to be installed in a transmission 100, for example, shown based on Figure 1. The oil guide channel component 1 can be configured as an insert component that is inserted into the transmission 100 during the assembly of the transmission 100, as shown herein. The oil guide channel component 1 can be made from plastic, metal, or a composite of plastic and metal, and may consist of one or more pieces. In particular, it is possible to assemble the oil guide channel component from two or more shell components that are mechanically connected to each other by snap connections or clip connections.

[0033] The oil guide channel component 1 comprises a guide channel 2 (better visible in Figure 3) having a receiving opening 11 and a discharge opening 12, the guide channel 2 comprising an oil guidance direction F (shown in Figure 3) from the receiving opening 11 to the discharge opening 12 and a channel wall 21 closed circumferentially perpendicular to the oil guidance direction F. The oil guide channel component 1 further comprises an oil collection area 13a for storing oil transported through the guide channel 2 and an outlet 15a for oil from the oil collection area 13a.

[0034] As shown in Figure 2, the oil collection area 13a includes a first storage tank 13 located at the upper end of the oil guide channel component 1. The first storage tank 13 comprises a first tank wall 25 and a first tank bottom 24. As best seen in Figure 3, the end of the channel wall 21 opposite the receiving opening 11 of the guide channel 2 projects above the first tank bottom 24 of the first storage tank 13, forming a wall 21a that defines the discharge opening 12.

[0035] As can be seen further in Figure 2, the first storage tank 13 is provided with a partition wall 201 rising from the first tank bottom 24, the height of which the partition wall 201 is lower than the height of the tank wall 25. The partition wall 201 divides the first storage tank 13 into at least two sub-regions, with the discharge opening 12 opening toward the first sub-region 13b. The second sub-region 13c is connected to the first sub-region 13b via a narrow notch 202 in the partition wall 201. As can be seen further in Figure 2, the partition wall 201 can be formed as a surge breaker with a bottom end point 206 facing the discharge opening 12. From the bottom end point 206, a sub-wall bent backward in the opposite direction extends to the first outlet 15 and the third outlet 16a of the first storage tank 13. The oil exiting from the discharge opening 12 flows over the wall 21 into the first storage tank 13, where it hits the bottom end point 206. Here, the oil may partially overflow the partition wall 201, and the oil is stored in the first partial region 13b and the second partial region 13a. From there, the oil flows through the first outlet 15 toward the outlet opening 17 and through the third outlet 16a toward the outlet opening 18a. The first outlet 15 and the second outlet 16 can be formed as angled grooves.

[0036] As can be seen further in Figure 2, the oil collection area of ​​the oil guide channel component 1 includes a second storage tank 14, which comprises a second tank wall 27 and a second tank bottom 26. The second storage tank 14 is located between the receiving opening 11 of the guide channel and the first tank bottom 24 of the first storage tank 13. The tank wall 25 of the first storage tank 13 is interrupted by a first dam 203 on the side facing the second storage tank 14. The height of the first dam 203 is formed to be considerably lower than the height of the tank wall 25. When the oil filling the first storage tank 13 is sufficient, some of it will flow over the dam 203 towards the second storage tank 14. The tank wall 27 of the second storage tank 14 may also be interrupted in one place by a second dam 204, the height of which is formed to be lower than the height of the second tank wall 27. When the second storage tank 14 is sufficiently filled, the oil passes through the second dam 204 and reaches the second outlet 16, which is formed as an angled groove and includes a further outlet opening 18.

[0037] The oil guide channel component 1 shown in Figure 2 is designed to be positioned within the transmission housing 140 of the transmission in a predetermined assembled state that defines the orientation of the oil guide channel component relative to gravity G. The oil guide channel component 1 is preferably intended to be inserted into the transmission 100 shown in Figure 1. For this purpose, the oil guide channel component 1 is provided with corresponding projections and retaining cams, which allow the oil guide channel component 1 to be positioned and secured within the transmission housing 140 of the transmission 100 in a predetermined orientation relative to the normal position of the transmission 100.

[0038] Figure 3 shows a transmission 100 having a basic structure corresponding to the transmission shown in Figure 1, and the oil guide channel component 1 of Figure 2 installed therein. As can be seen, the receiving opening 11 of the guide channel 2 can be positioned on and very close to the end face of the transmission gear 107, and the first tank bottom 24 of the first storage tank 13, and also in this embodiment, for example, the tank bottom 26 of the second storage tank 14, can be positioned above the transmission gear 107. The oil guide direction F has a component that travels against gravity G from the receiving opening 11 to the discharge opening 12. Figure 3 shows the orientation of gravity G with respect to the normal position of the transmission 100. As can be seen, the oil guide direction F travels somewhat obliquely to gravity and has a relatively large component that is directly opposite to gravity. In the direction of oil guidance F of the guide channel 2, the first tank bottom 24 is positioned between the receiving opening 11 and the discharge opening 12, and the second tank bottom 26 is positioned between the receiving opening 11 and the first tank bottom 24.

[0039] The guide channel 2 is preferably configured linearly over 80% of its longitudinal extension, and at least in the region of the transmission gear 107, preferably extending tangentially to the end face of the transmission gear 107. The receiving opening 11 can be formed as a catch mouth, and the periphery of the receiving opening 11 can be chamfered in accordance with the angle between the direction of gravity and the transport direction F, thereby bringing the receiving opening 11 as close as possible to the end face of the transmission gear 107. Here, the contour of the periphery can be made to match the radius of curvature of the end face of the transmission gear 107, as shown in the figure.

[0040] The transmission gear 107 of the transmission 100 is partially positioned within the oil sump 150. The transmission gear 107 draws oil from the oil sump 150 and transports the oil to the receiving opening 11 of the guide channel 2. Due to the oil movement pulses, the oil in the guide channel 2 is pushed out to the discharge opening 12 in the oil guidance direction F.

[0041] Oil flowing from the oil guide channel component 1 through the first outlet 15, the second outlet 18, and the third outlet 18a may be directed to different bearings of transmission elements within the transmission 100 that may be spatially separated from each other. For example, the first outlet 15 can supply oil to the first and / or second bearings of a transmission element, particularly the bearings 175 and 175b of the input rotor shaft 103 mounted to the transmission 100, via the outlet opening 17, and the third outlet 16a can supply oil to the bearings of further transmission elements, particularly the bearing 176 of the pinion 106, in another plane located between the receiving opening 11 and the discharge opening 12.

[0042] It should be understood that the first and second storage tanks, as well as the outlets branching from them, allow for optimal supply of lubricating oil to the bearings of the rotating transmission elements, and that this can be optimally adapted to transmissions with different configurations.

Claims

1. An oil guide channel component (1) for assembly to a transmission (100), wherein the oil guide channel component (1) comprises a guide channel (2) having a receiving opening (11) and a discharge opening (12), the guide channel (2) having an oil guidance direction (F) from the receiving opening (11) to the discharge opening (12) and a channel wall (21) closed circumferentially perpendicular to the oil guidance direction (F), the oil guide channel component (1) further comprises at least one oil collection area (13a) for storing oil guided through the guide channel (2), and the oil guide channel component (1) has at least one for oil from the at least one oil collection area (13a) An oil guide channel component (1) having an outlet (15a), wherein the at least one oil collection area (13a) includes a first storage tank (13) having a first tank wall (25) and a first tank bottom (24), and a second storage tank (14) having a second tank wall (27) and a second tank bottom (26), wherein the guide channel (2) is adjacent to the first tank wall (25) and the second tank wall (27), and in the oil guide direction (F) of the guide channel (2), the first tank bottom (24) is positioned between the receiving opening (11) and the discharge opening (12), and the second tank bottom (26) is positioned between the receiving opening (11) and the first tank bottom (24).

2. The oil guide channel component (1) according to claim 1, characterized in that the first tank bottom (24) and the second tank bottom (26) are oriented substantially perpendicular to gravity (G), and the oil guide channel component (1) is assembled to the transmission (100) such that the oil guide direction (F) from the receiving opening (11) to the discharge opening (12) has at least one component that extends against gravity (G).

3. The oil guide channel component (1) according to claim 1, characterized in that the end of the channel wall (21) of the guide channel (2) on the opposite side of the receiving opening (11) protrudes beyond the first tank bottom (24) of the first storage tank (13) to form a wall (21a) that defines the discharge opening (12).

4. The oil guide channel component (1) according to claim 1, characterized in that the guide channel (2) is continuously closed from the receiving opening (11) to the discharge opening (12) and is formed linearly over at least 80% of its longitudinal extension.

5. The oil guide channel component (1) according to claim 1, characterized in that the second storage tank (14) can be filled with oil flowing out of the first storage tank (13) over the first dam (203).

6. The oil guide channel component according to claim 1, characterized in that the first storage tank (13) is provided with at least one first outlet (15).

7. The oil guide channel component according to claim 1, wherein the second storage tank (14) is provided with at least one second outlet (16), and oil reaches the second outlet (16) from the second storage tank (14) over the second dam (204).

8. The oil guide channel component according to claim 1, wherein at least the first storage tank (13) is provided with a partition wall (201) rising from the bottom (24) of the first tank, the partition wall (201) divides the first storage tank (13) into at least two sub-regions, the discharge opening (12) opens toward the first sub-region (13b), and the second sub-region (13c) is connected to the first sub-region (13b) via a notch (202) in the partition wall (201).

9. The oil guide channel component (1) according to claim 1, wherein the transmission (100) is an automobile transmission.

10. A transmission (100) comprising a transmission housing (140), an oil guide channel component (1) according to any one of claims 1 to 9 disposed within the transmission housing (100), and a transmission gear (107) disposed within the transmission housing (140), wherein the transmission gear (107) is at least partially disposed within an oil sump (150) of the transmission (100), the oil guide channel component (1) is disposed within the transmission housing (140), the receiving opening (11) is positioned on the end face of the transmission gear (107) which is at least partially disposed within the oil sump (150), the oil guide direction (F) from the receiving opening (11) to the discharge opening (12) has at least one component which moves against gravity (G), and at least the first tank bottom (24) is disposed above the transmission gear (107).

11. The transmission (100) according to 10, characterized in that, during operation, the oil lifted from the oil sump (150) by the transmission gear (107) reaches the receiving opening (11), and further reaches the discharge opening (12) along the oil guidance direction (F) of the guide channel (2).

12. The transmission according to claim 10, wherein the first storage tank (13) is provided with at least one first outlet (15), the second storage tank (14) is provided with at least one second outlet (16), the outlet opening (17) of the first outlet (15) supplies oil to the bearing of the first transmission element, and the outlet opening (18) of the second outlet (16) supplies oil to the bearing of the second transmission element.

13. The transmission according to claim 12, characterized in that the outlet opening (18) of the second outlet (16) supplies oil to the bearing (176) of the pinion (106).

14. The transmission according to claim 12, characterized in that the outlet opening (17) of the first outlet (15) supplies oil to the bearing (175) of the input rotor shaft (102) mounted inside the transmission (100).

Images