Aircraft electric motor with cooling system.

Description

1 / 44 Aircraft Electric Motor with Cooling System. Cross-Reference for Related Orders.

[001] This application claims priority to U.S. Patent Application 18 / 985,557, filed December 18, 2024, entitled “Aircraft Electric Motor with Cooling System”, which is a continuation in part of U.S. Patent Application 18 / 608,415, filed March 18, 2024, which is a continuation of U.S. Patent Application 17 / 966,809, filed October 15, 2022, now U.S. Patent 11,964,223, issued April 23, 2024, the entirety of which is incorporated herein by reference. Fundamentals

[002] Aircraft include, among other components, a fuselage, wings, and a propulsion system that provides thrust. Conventionally, the propulsion system is a turbofan or turbojet that operates on fuel. More recently, electric motors have been developed to reduce carbon emissions, reduce noise, and reduce operating costs. However, cooling electric motors remains an ongoing need. In addition, there is a desire to increase the power density of electric motors. Summary

[003] This application is directed, at least in part, to an aircraft propeller having an electric motor and a Petition 870250115914, dated 12 / 16 / 2025, page 14 / 77 2 / 44 Cooling system, according to examples in the present description. The propeller may include inverters that power the electric motor. The inverters may couple directly to the electric motor to reduce the weight and / or form factor of the propeller or, more generally, the aircraft. The cooling system has an inertial air separator configured to separate an incoming airflow into a clean airflow and a dirty airflow. The clean airflow may be routed through the electric motor to cool electric motor components, such as a rotor and / or a stator. The clean airflow, after routing through the electric motor, may be used to cool the inverters. The dirty airflow, which may route around the electric motor components, may additionally be used to cool the inverters. In some cases, the dirty airflow may flow through heat sinks coupled to the inverters to assist in heat transfer.Direct coupling of inverters to the electric motor, as well as to the cooling system, can increase the power density of the propeller.

[004] A propeller can be a component and / or device used to propel an aircraft through the air. Any number of propellers can be arranged on, around, etc., the wings, fuselages, etc., of the aircraft. An electric motor can convert electrical energy into mechanical energy. Petition 870250115914, dated 12 / 16 / 2025, page 15 / 77 3 / 44 and may be powered by direct current (DC) or alternating current (AC) electrical energy and may include, without limitation, brushless DC electric motors, switched reluctance motors, induction motors or any combination thereof. The electric motor may also include electronic speed controllers or other components for regulating speed, direction of rotation and / or dynamic braking.

[005] The stator represents a stationary component of the electric motor and includes a plurality of magnetic elements. In some cases, the stator may be coupled to an aircraft fuselage to transfer loads to the fuselage. For example, as will be explained in this document, the loads experienced by the electric motor can be transferred to the fuselage through a coupling of the stator to the fuselage. The rotor, which is coupled to a shaft of the electric motor, rotates relative to the stator. As the stator generates magnetic fields, through the magnetic elements, it causes the rotor to rotate. The coupling of the shaft to the rotor causes the shaft to rotate correspondingly. A propeller of the engine, which is coupled to the shaft, propels the aircraft by transferring mechanical energy to the thrust.

[006] The propeller includes an intake duct located on one side of the propeller's inlet. The inertial air separator, which may be disposed within the duct of Petition 870250115914, dated 12 / 16 / 2025, p. 16 / 77 4 / 44 intake, receives the airflow on the inlet side and separates the airflow into clean airflow and dirty airflow. In some cases, 90% of the airflow is separated into clean airflow and 10% of the airflow is separated into dirty airflow. In some cases, the clean airflow may alternatively be referred to in this document as a first airflow and the dirty airflow may alternatively be referred to in this document as a second airflow. The inertial air separator can separate physical particles from the airflow using a combination of forces, such as, without limitation, a centrifugal force, a gravitational force, an inertial force and the like. In some cases, the physical particles may include, without limitation, dust, dirt, sand, soot, rock and the like. As used in this document, a “clean airflow” may be air separated from impurities and a “dirty airflow” may be air separated with physical impurities.Impurities can include moisture (e.g., water and / or water vapor), vapors, and / or particles. The inertial air separator works to move physical particles to an area where one or more forces exerted by the airflow are minimal. Additionally, or alternatively, the inertial air separator can separate the airflow into a dry airflow and a wet airflow in a similar manner. In some cases, the clean airflow may be dry air and the dirty airflow may be wet air. Petition 870250115914, dated 12 / 16 / 2025, page 17 / 77 5 / 44

[007] Clean airflow is routed through the electric motor to cool the stator, rotor, bearings that couple the rotor to the shaft, and the like. In some cases, clean airflow, compared to dirty airflow, can be used to cool electric motor components to mitigate degradation of stator magnetic elements, AC conductors, wires, cables, bearings, etc. In some cases, housings, covers, louvers, etc., can be used to route, direct, or otherwise channel clean airflow through electric motor components. For example, a front housing and one or more inlet covers can route clean airflow to the electric motor. In some cases, the front housing and one or more inlet covers can form channels, ducts, conduits, etc., to route clean airflow from the intake duct to the electric motor.

[008] In some cases, the front housing and / or one or more inlet covers may couple to the electric motor components. For example, the front housing may couple to the rotor and / or shaft. One or more inlet covers may couple to the stator. In addition, an impeller may be disposed within one or more inlet covers and may couple to the shaft to assist in routing clean airflow to the electric motor.

[009] The flow of clean air, after passing through the engine Petition 870250115914, dated 12 / 16 / 2025, page 18 / 77 6 / 44 electric motor, can exit through a rear housing. The rear housing can be coupled to the electric motor, such as the stator, on a side opposite the front housing. The rear housing may include a plurality of orifices that allow clean airflow to exit from inside the electric motor. After exiting the orifices, the clean airflow can be routed through, over, etc., the inverters. In some cases, one or more outlet covers may route the clean airflow from the orifices to the inverters. In this way, the clean airflow not only cools the electric motor but can also additionally cool the inverters. The one or more outlet covers may be coupled to the inverters and / or the rear housing. After routing over the inverters, the clean airflow can exit the propeller on an outlet side adjacent to the propeller.

[0010] In some cases, the inverters can be directly coupled to the rear housing. For example, fasteners (e.g., dowels, screws, etc.) can be used to couple the inverters to the housing. Coupling the inverters to the rear housing correspondingly couples the inverters to the fuselage (e.g., through a coupling from the rear housing to the stator and from the stator to the fuselage). In some cases, spacers (e.g., spacers, posts, pins, etc.) can be Petition 870250115914, dated 12 / 16 / 2025, page 19 / 77 7 / 44 spacers are arranged between portions of the inverters and the rear housing, and fasteners can be partially spaced through the spacers to attach the inverters to the rear housing. Any number of fasteners can be used to attach the inverters to the housing.

[0011] The direct coupling of the inverters to, for example, the rear housing functions to transfer loads from the propeller to the fuselage. For example, the inverters may include a housing and electrical components known in the art of inverters are arranged in the housing to receive DC and provide AC to the motor. The inverter housings may be coupled to the rear housing and are configured to transfer and transport loads. The inverter housings may therefore form part of an overall structural assembly of the propulsion motor and the housings may be designed not only to house inverter components but also as structural members. For example, as thrust is generated from the propeller, the thrust may be transferred from the propeller to the inverters, to the rear housing, to the stator and then to the fuselage. Coupling the inverters to the rear housing also reduces the weight of the propeller.For example, coupling the inverters to the rear housing structurally integrates the inverters and the rear housing. This has the effect of reducing one... Petition 870250115914, dated 12 / 16 / 2025, page 20 / 77 8 / 44 size, amount of material, etc., of the inverters and the rear housing than if the inverters and the rear housing were supported separately within the propeller. Furthermore, the inventors' direct coupling to the rear housing can also reduce the length of AC conductors (e.g., cables, wires, etc.) located between the inverters and the electric motor. Shortening the AC conductors can reduce electromagnetic field (EMF) interference with the aircraft's electronic components.

[0012] The dirty airflow, however, can be routed around the electric motor, such as along an external part of the stator, to the inverters. In some cases, one or more inlet covers and one or more outlet covers can seamlessly couple to direct the dirty airflow to the inverters. For example, one or more inlet covers can route the dirty airflow to one or more outlet covers, and there, one or more outlet covers can route the dirty airflow through the inverter heat sinks. The heat sinks may include fins, posts, etc., through which the dirty airflow is routed. The impeller can also assist in routing the dirty airflow to the inverters. In some cases, one or more inlet covers, the stator, and one or more outlet covers... Petition 870250115914, dated 12 / 16 / 2025, page 21 / 77 9 / 44 outlets can form channels, ducts, conduits, etc., to route the dirty airflow to the electric motor. The dirty airflow can exit the propeller on the outlet side adjacent to the propeller.

[0013] Inverters may include components suitable for switching from AC to DC. For example, inverters may include Silicon Carbide (SiC) MOSFETs for AC to DC switching, capacitors, resistors, etc. In some cases, heat sinks are mounted on the inverters adjacent to where the SiC MOSFETs are located. Since SiC MOSFETs generate a significant amount of heat within the inverters, arranging the heat sink in this way can improve heat transfer.

[0014] In some cases, dirty airflow may route around an external part of the inverters, while clean airflow may route along an internal part of the inverters. After routing along the exterior and interior, respectively, the dirty airflow and clean airflow may combine and exit the impeller on the outlet side. Consequently, the inverters may be cooled along one or more sides using different airflows.

[0015] In some cases, the electric motor may include two or more inverters arranged in inverter housings. Petition 870250115914, dated 12 / 16 / 2025, page 22 / 77 10 / 44 corresponding. In addition to being coupled to, for example, the rear housing, in some cases, the two inverters may be coupled together via one or more supports or other structural members. Coupling the inverters to each other can increase the structural rigidity of the inverters and the overall structural assembly. The inverters may include any suitable shape. In some cases, the inverters may include a C-shape. The C-shaped nature of the inverters may accommodate the shaft. For example, the inverters may be at least partially arranged around the shaft. In cases where the propeller includes two of the inverters, one or more inlet covers and one or more outlet covers may, respectively, direct clean airflow and dirty airflow to the inverters.For example, one or more first outlet covers may direct a first portion of the dirty airflow through a first heat sink of a first inverter, and one or more second outlet covers may direct a second portion of the dirty airflow through a second heat sink of a second inverter.

[0016] The inverters themselves may include inverter housings, whereby the inverter housings may be coupled to the rear housing and / or arranged around the axis. The inverter housings may define an approximately annular volume through which the clean airflow passes. Petition 870250115914, dated 12 / 16 / 2025, page 23 / 77 11 / 44 is routed outward from the electric motor. The shaft can be arranged radially into the annular volume. The inverter housings can also be coupled together (e.g., structurally interconnected) and coupled to the rear housing.

[0017] However, although a particular number and / or shape of the inverters is described, the propeller may include any number of inverters and / or the inverters may include any shape. For example, four inverters may be coupled to the rear housing and / or the inverters may be rectangular in shape. In such cases, the propeller may include any number of inlet covers and outlet covers to route clean airflow and dirty airflow to the inverters, respectively.

[0018] The propeller may include additional or alternative components different from those described. For example, sensor(s) may be used to measure the temperature of the inverters and / or the electric motor to adjust the clean airflow and / or the dirty airflow. For example, valves, actuators, etc., may be controlled to adjust a quantity of clean airflow and / or dirty airflow. In addition, louvers, slots, fins, flanges, etc., may be used to direct the clean airflow and / or the dirty airflow throughout the propeller.

[0019] The present description provides a general understanding Petition 870250115914, dated 12 / 16 / 2025, page 24 / 77 12 / 44 of the principles of structure, function, device and system disclosed in this document. One or more examples of the present description are illustrated in the accompanying drawings. Those skilled in the art will understand and appreciate that the devices, systems and / or methods specifically described in this document and illustrated in the accompanying drawings are non-limiting embodiments. The features illustrated or described in connection with one embodiment or instance may be combined with the features of other embodiments or instances. Such modifications and variations are intended to be included within the scope of the description and the appended claims. Brief Description of the Drawings

[0020] The detailed description is given with reference to the attached figures. In the figures, the leftmost digit(s) of a reference number identifies the figure in which the reference number first appears. The use of the same reference numbers in different figures indicates similar or identical components or features. The systems shown in the attached figures are not to scale, and the components within the figures may be represented not to scale with each other.

[0021] FIG. 1 illustrates an example propeller for an aircraft, according to examples in the present description.

[0022] FIG. 2 illustrates a partially Petition 870250115914, dated 12 / 16 / 2025, p. 25 / 77 13 / 44 exploded view of the propeller of FIG. 1, including an electric motor, inverters and covers, according to examples in the present description.

[0023] FIG. 3 illustrates a cross-sectional view of the propeller of FIG. 1, showing example propeller components and airflows that provide cooling to the propeller components, according to examples in the present description.

[0024] FIG. 4A illustrates a front isometric view of the electric motor, inverters and covers that provide cooling to the propeller components of FIG. 1, according to examples in this description.

[0025] FIG. 4B illustrates a rear isometric view of the electric motor, the inverters coupled to a rear housing of the electric motor and the covers that provide cooling to the propeller components of FIG. 1, according to examples in the present description.

[0026] FIG. 4C illustrates a rear plan view of the electric motor, inverters and covers that provide cooling to the propeller components of FIG. 1, according to examples in the present description.

[0027] FIG. 4D illustrates a top plan view of the electric motor, the inverters coupled to the rear housing and the propeller covers of FIG. 1, according to examples in this description. Petition 870250115914, dated 12 / 16 / 2025, page 26 / 77 14 / 44

[0028] FIG. 5 illustrates a partial isometric view of the electric motor and the drive inverters of FIG. 1, showing a coupling between the inverters and the rear housing of the electric motor, according to examples in the present description.

[0029] FIG. 6 illustrates an example of coupling between the inverters and the rear housing of the propeller of FIG. 1, whereby a post is arranged between the inverters and the rear housing, according to examples in this description.

[0030] FIG. 7 illustrates an example of coupling between the inverters and the rear housing of the propeller in FIG. 1, where the inverters are directly in contact with the rear housing, in accordance with examples in this description.

[0031] FIG. 8 illustrates examples of mounting locations between the inverters and the rear housing of the propeller in FIG. 1, according to examples in this description.

[0032] FIG. 9 illustrates an example of direct coupling between the inverters and the rear housing of the propeller in FIG. 1, according to examples in this description.

[0033] FIG. 10 illustrates a coupling of the electric motor and covers to an aircraft fuselage, according to examples in the present description. Detailed Description

[0034] FIG. 1 illustrates an example of a 100 propeller. Petition 870250115914, dated 12 / 16 / 2025, page 27 / 77 15 / 44 an aircraft, according to examples in the present description. In some cases, the propeller 100 includes a propeller 102, an electric motor 104, one or more inverters 106 and an intake duct 108.

[0035] Propeller 100 is configured to propel the aircraft through the air. Furthermore, the aircraft includes any number of propellers 100 arranged on, around, etc., the aircraft's wings, fuselages, etc. Electric motor 104 converts electrical energy into mechanical energy. For example, electric motor 104 is driven by DC or AC. Electric motor 104 also includes electronic speed controllers or other components for regulating speed, direction of rotation, and / or dynamic braking. One or more inverters 106 include components suitable for switching from AC to DC.

[0036] As will be explained in this document, the intake duct 108 directs an influx to the electric motor 104 and through one or more inverters 106, for example, to provide cooling. Additional housings, covers, etc., of the propeller 100 assist in routing the air through the electric motor 104 and / or to one or more inverters 106. The one or more inverters 106 couple directly to the electric motor 104 to transfer forces (e.g., thrust) generated from the propeller 102 to an aircraft fuselage. Petition 870250115914, dated 12 / 16 / 2025, page 28 / 77 16 / 44

[0037] FIG. 2 illustrates a partially exploded view of the propeller 100 according to examples in the present description. The electric motor 104 includes a stator 200, a rotor 202, and a shaft 204. The stator 200, which represents a stationary component of the electric motor 104, includes one or more magnetic elements that generate a magnetic field to make the rotor 202 rotate. For example, the rotor 202 rotates within the stator 200. The stator 200 is coupled to the aircraft fuselage to remain stationary. The propeller 102 is coupled to the rotor 202 via the shaft 204, and as the rotor 202 rotates, mechanical energy is transferred to the propeller 102 to generate thrust to propel the aircraft.

[0038] The propeller 100 includes a rear housing 206 which is coupled to the stator 200. The shaft 204 extends through the rear housing 206, as does an opening in the rear housing 206, for coupling to the rotor 202. The rear housing 206, given a coupling to the stator 200, remains stationary during the operation of the electric motor 104. The rear housing 206 is arranged around the shaft 204 by means of one or more bearings (seen in FIG. 3). The one or more bearings between the rear housing 206 and the shaft 204 rotatably support the shaft 204.

[0039] In some cases, one or more inverters 106 include a first inverter 106(1) and a second inverter 106(2). The first inverter 106(1) and the second inverter Petition 870250115914, dated 12 / 16 / 2025, page 29 / 77 17 / 44 106(2) are coupled to the rear housing 206, for example, by means of one or more fasteners. In addition, the first inverter 106(1) and the second inverter 106(2) are coupled to each other. The coupling of the first inverter 106(1) and the second inverter 106(2) to each other increases the structural rigidity of the propeller 100 and transfers loads between the first inverter 106(1) and the second inverter 106(2). As will be explained in this document, the first inverter 106(1) and the second inverter 106(2) include a C-shape (for example, about an XY plane). The C-shape of the first inverter 106(1) and the second inverter 106(2) accommodates the shaft 204. For example, the shaft 204 is disposed through a channel defined by the first inverter 106(1) and the second inverter 106(2).

[0040] The heat sinks 208 are coupled to the first inverter 106(1) and the second inverter 106(2), respectively, to assist in heat transfer. For example, a first heat sink 208(1) is coupled to the first inverter 106(1) and a second heat sink 208(2) is coupled to the second inverter 106(2). A second airflow, which is routed around the electric motor 104, is directed over, through, etc., the heat sinks 208 to provide cooling to one or more inverters 106. In some cases, the propeller 100 includes covers that direct, channel, etc., the second airflow to the heat sinks 208 of the inverters 106. Petition 870250115914, dated 12 / 16 / 2025, page 30 / 77 18 / 44 respectively. For example, the outlet covers direct the second airflow to the heat sinks 208 of the inverters 106, respectively. As will be explained in this document, the inlet covers direct the second airflow to the outlet covers, as well as the first airflow to the electric motor 104.

[0041] In some cases, the first outlet covers direct a first portion of the second airflow to the first heat sink 208(1) and the second outlet covers direct a second portion of the second airflow to the second heat sink 208(2). In some cases, the outlet covers include internal outlet covers 210 and external outlet covers 212. The first outlet covers include a first internal outlet cover 210(1) and a first external outlet cover 212(1). The second outlet covers include a second internal outlet cover 210(2) and a second external outlet cover 212(2). Details of the outlet covers are discussed in this document; however, the internal outlet covers 210 are arranged between portions of the inverters 106 and the rear housing 206, to direct the first airflow from the holes in the rear housing 206 through the inverters 106.In addition, the internal outlet covers 210 direct portions of the second airflow through the heat sinks 208. Petition 870250115914, dated 12 / 16 / 2025, page 31 / 77 19 / 44 The external outlet covers 212 are at least partially arranged over (i.e., encapsulated) to direct the second airflow through the heat sinks 208.

[0042] Although heat sinks 208 are shown as facing outwards, in some cases, heat sinks 208 are additionally or alternatively facing inwards. For example, in some cases, heat sinks 208 are oriented or facing each other.

[0043] FIG. 3 illustrates a cross-sectional view of the propeller 100, according to examples in the present description. As introduced above, the electric motor 104 includes the stator 200 and the rotor 202. The stator 200 is coupled to a fuselage 300 (e.g., fairing, structure, etc.) of an aircraft. The rotor 202 is coupled to the shaft 204 and is at least partially disposed through the rear housing 206 for coupling to the propeller 102. The bearings 322 are disposed at an interface between the rear housing 206 and the shaft 204. The bearings 322 between the rear housing 206 and the shaft 204 rotatably support the shaft 204. Furthermore, as discussed above, the rear housing 206 is coupled to the stator 200 to remain stationary during the operation of the electric motor 104.

[0044] The intake duct 108 channels, tapers or Petition 870250115914, dated 12 / 16 / 2025, page 32 / 77 Another form, 20 / 44, directs an airflow 302 to the propeller 100. In the illustrated example, the propeller 100 includes an inertial air separator 304 configured to separate the airflow 302 into a clean airflow 306 and a dirty airflow 308. In other examples, the propellers of the present description do not include an inertial air separator. In some cases, 90% of the airflow 302 is separated into the clean airflow 306 and 10% of the airflow is separated into the dirty airflow 308. The inertial air separator 304 separates physical particles from the airflow 302 using a combination of forces, such as centrifugal forces, gravitational forces, inertial forces, etc. Examples of physical particles in the airflow 302 include dust, dirt, sand, soot, rock, etc. Clean airflow 306 is air from airflow 302 separated from impurities, while dirty airflow 308 is air separated from airflow 302 and containing some level of physical impurities. Impurities include moisture, vapors, and / or particles.Dirty airflow 308 also includes emissions, factory chemicals, dust, pollen, mold spores, ozone, and the like. In some cases, inertial air separator 304 separates airflow 302 into a dry airflow and a wet airflow in a similar manner, wherein clean airflow 306 is dry air and dirty airflow 308 is wet air.

[0045] The clean airflow 306 is routed through the electric motor 104, as well as through the stator 200 and the Petition 870250115914, dated 12 / 16 / 2025, page 33 / 77 21 / 44 rotor 202, to provide cooling. The impeller 100 includes one or more inlet covers that direct the clean airflow 306 to the electric motor 104. In addition, the clean airflow 306 is routed through an impeller 310 to assist in routing the clean airflow 306 to the electric motor 104. The impeller 310 couples to the shaft 204, in a location opposite to where the propeller 102 couples to the shaft 204. The impeller 310 is configured to rotate with the shaft 204 during the operation of the electric motor 104. The impeller 310 includes blades, vanes, or fins that assist in forming passages, ducts, channels, etc., to route the clean airflow 306 and the dirty airflow 308. The impeller 310 is disposed between a front housing 312 and the inertial air separator 304.

[0046] The front housing 312 also directs the clean airflow 306 to the electric motor. In some cases, the front housing 312 and the impeller 310 couple to the shaft 204. The bearings 324 are arranged between an interface of the front housing 312 and the shaft 204. The bearings 324 rotatably support the shaft 204.

[0047] As the clean airflow 306 is separated from the dirty airflow 308, the clean airflow 306 flows through the impeller 310. There, the front housing 312 and an internal inlet cover 314 of the inlet covers direct the clean airflow 306 to the electric motor. Petition 870250115914, dated 12 / 16 / 2025, page 34 / 77 22 / 44 104. For example, the clean airflow 306 is routed between the rotor 202 and the stator 200. The inner inlet cover 314 is arranged radially around the shaft 204, but couples to the stator 200 and remains stationary during the operation of the electric motor 104.

[0048] As shown, the clean airflow 306 is routed inside, within, etc., the stator 200. After flowing through the electric motor 104, the clean airflow 306 travels through the orifices 316 in the rear housing 206. The internal outlet covers 210, which are arranged between the rear housing 206 and the inverters 106, route the clean airflow 306 towards an interior of the inverters 106. In other words, the clean airflow 306 is directed to the shaft 204. There, the clean airflow 306 passes inside the interior of the inverters 106 and exits through an outlet duct 318 adjacent to the propeller 102.

[0049] Dirty airflow 308 flows around impeller 310. Impeller blades, vanes, or fins 310 assist in routing dirty airflow 308 (as well as clean airflow 306). An external inlet cover 320 is arranged around the internal inlet cover 314 to route dirty airflow 308 to inverters 106. In addition, the external inlet cover 320 is arranged at least partially around impeller 310 (e.g., the external inlet cover 320 encloses or conceals it). Petition 870250115914, dated 12 / 16 / 2025, page 35 / 77 23 / 44 the impeller 310). The dirty airflow 308 is routed between an outer surface of the inner inlet cover 314 and an inner surface of the outer inlet cover 320. The outer inlet cover 320 is radially arranged around the shaft 204 and encloses (e.g., surrounds) the inner inlet cover 314. The outer inlet cover 320 couples to the stator 200 and remains stationary during the operation of the electric motor 104. The dirty airflow 308 is routed to the outlet covers, through the inner inlet cover 314 and the outer inlet cover 320. There, the dirty airflow 308 flows around an exterior (e.g., external a) of the stator 200.

[0050] As will be explained in this document, while the internal intake cover 314 and the external intake cover 320 are arranged around a whole of the propeller 100 (e.g., 360 degrees around the geometric Z axis), the outlet covers are arranged around less than a whole. The external outlet covers 212 direct the dirty airflow 308 to the heat sinks 208. In addition, the internal outlet covers 210, besides directing the clean airflow 306 through and into the inverters 106, direct the dirty airflow 308 through the heat sinks 208. As such, the dirty airflow 308 is directed to the outside. Petition 870250115914, dated 12 / 16 / 2025, page 36 / 77 24 / 44 of the inverters 106. After flowing through the heat sinks 208, the dirty airflow 308 exits through the outlet duct 318 adjacent to the propeller 102.

[0051] FIGS. 4A-4D illustrate details of the propeller 100 according to examples in the present description. In FIGS. 4A-4D, the external inlet cover 320 is shown removed. The impeller 310, which is disposed within an opening of the inner inlet cover 314, propels the clean airflow 306 through the electric motor 104. For example, the impeller 310 includes first rotating blades 446 that route the clean airflow 306 through the electric motor 104. Additionally, the impeller 310 assists in routing the dirty airflow 308 between the inner inlet cover 314 and the outer inlet cover 320. For example, the impeller 310 includes second rotating blades 448 that route the dirty airflow 308 around the electric motor 104. The impeller 310 includes a first rotating cover 450 and a second rotating cover 452. The first rotating blades 446 extend between the first rotating cover 450 and the second rotating cover 452.For example, the first rotating blades 446 extend from a surface of the first rotating cover 450 to a surface of the second rotating cover 452. The second rotating blades 448 extend from a surface of the first rotating cover 450 to an opposite surface. Petition 870250115914, dated 12 / 16 / 2025, page 37 / 77 25 / 44 to the location where the first rotating blades 446 are arranged. As also shown, the second rotating blades 448 include a height that is less than the height of the first rotating blades 446. The second rotating blades 448 move relative to the outer inlet cover 320. A flange 400, which is a component of the inner inlet cover 314, includes openings 402 that direct the dirty airflow 308 to the outlet covers.

[0052] The first outlet covers direct a first portion of the dirty airflow 308 to the first inverter 106(1) or the first heat sink 208(1). The second outlet covers direct a second portion of the dirty airflow 308 to the second inverter 106(2) or the second heat sink 208(2). The outlet covers include side walls, flanges, etc., to direct the dirty airflow 308 to the inverters 106, respectively. For example, the first external outlet cover 212(1) includes a first side wall 404, a second side wall 406 and a third side wall 408. The first side wall 404 extends along a periphery of the stator 200 and / or the first inverter 106(1). The first external outlet cover 212(1) includes a first end 410 disposed close to flange 400 and a second end 412 disposed adjacent to a rear surface 414 of the first inverter 106(1). The first cover of Petition 870250115914, dated 12 / 16 / 2025, p. 38 / 77 26 / 44 external outlet 212(1), or the first side wall 404, tapers (e.g., in the Y direction) to channel dirty airflow 308 through the first heat sink 208(1). The second side wall 406 and the third side wall 408 extend from the first side wall 404. In addition, the first internal outlet cover 210(1) abuts or is adjacent to the second side wall 406 and / or the third side wall 408. The first side wall 404 is disposed over the top of the first heat sink 208(1), while the second side wall 406 and the third side wall 408 are disposed over the sides of the first heat sink 208(1). The bottom of the first heat sink 208(1) couples to the first inverter 106(1). The first external outlet cover 212(1) is open at the second end 412 to allow dirty airflow 308 to exit after flowing through the first heat sink 208(1).In some cases, the first external outlet cover 212(1) couples to flange 400, rear housing 206 and / or first inverter 106(1).

[0053] The second external output cover 212(2) is similar to the first external output cover 212(1). For example, the second external output cover 212(2) includes a first side wall 416, a second side wall 418 and a third side wall 420. The first side wall 416 extends along a periphery of the stator. Petition 870250115914, dated 12 / 16 / 2025, page 39 / 77 27 / 44 200 and / or the second inverter 106(2). The second external outlet cover 212(2) includes a first end 422 disposed close to the flange 400 and a second end 424 disposed adjacent to a rear surface 426 of the second inverter 106(2). The second external outlet cover 212(2), or the first side wall 416, tapers (e.g., in the Y direction) to channel the dirty airflow 308 through the second heat sink 208(2). The second side wall 418 and the third side wall 420 extend from the first side wall 416. In addition, the second internal outlet cover 210(2) abuts or is adjacent to the second side wall 418 and / or the third side wall 420. The first side wall 416 is disposed over the top of the second heat sink 208(2), while the second side wall 418 and the third side wall 420 are disposed over the sides of the second heat sink 208(2).A bottom of the second heat sink 208(2) couples to the second inverter 106(2). The second external outlet cover 212(2) is open at the second end 424 to allow dirty airflow 308 to exit after flowing through the second heat sink 208(2). In some cases, the second external outlet cover 212(2) couples to flange 400, rear housing 206 and / or the second inverter 106(2).

[0054] The first inverter 106(1) and the second inverter 106(2) are coupled to each other. For example, one or more Petition 870250115914, dated 12 / 16 / 2025, page 40 / 77 28 / 44 supports 428 (e.g., loops, braces, bars, etc.) are arranged between the rear surface 414 and the rear surface 426 to couple the first inverter 106(1) and the second inverter 106(2) together. Coupling the first inverter 106(1) and the second inverter 106(2) together increases the structural integrity of the first inverter 106(1) and the second inverter 106(2) and / or reduces the weight of the first inverter 106(1) and the second inverter 106(2).

[0055] The first inverter 106(1) and the second inverter 106(2) are shown including a C-shape (e.g., around the XY plane). The first inverter 106(1) includes a base 430, a first arm 432, and a second arm 434. The first arm 432 and the second arm 434 extend from the base 430, thus forming the C-shape. The base 430, the first arm 432, and the second arm 434 represent a housing for the first inverter 106(1). The housing for the first inverter 106(1) couples to the rear housing 206. Similarly, in some cases, the second inverter 106(2) includes a base 436, a first arm 438 and a second arm 440. The first arm 438 and the second arm 440 extend from the base 436, thus forming the C shape. The base 436, the first arm 438 and the second arm 440 represent a housing for the second inverter 106(2). The housing for the second inverter 106(2) couples to the rear housing 206. Petition 870250115914, dated 12 / 16 / 2025, page 41 / 77 29 / 44 In some cases, the first arm 432 and the first arm 438 and / or the second arm 434 and the second arm 440 are coupled via the supports 428.

[0056] The first heat sink 208(1) is located on base 430 and the second heat sink 208(2) is located on base 436. In some cases, the first inverter 106(1) includes SiC MOSFETs located within base 430, or more generally, a housing for the first inverter 106(1), for AC to DC switching. Since SiC MOSFETs generate a significant amount of heat, arranging the first heat sink 208(1) on base 430 improves heat transfer. The second inverter 106(2) also includes SiC MOSFETs located within base 436 or, more generally, a housing for the second inverter 106(2).

[0057] The C-shaped configuration of the first inverter 106(1) and the second inverter 106(2) forms an internal channel 442 through which the clean airflow 306 is routed. For example, when the clean airflow 306 exits the electric motor 104 and flows out of the rear housing 206, through the orifices 316, the clean airflow 306 flows through the internal channel 442. The internal channel 442 is defined at least in part by the first inverter 106(1), the second inverter 106(2), the rear housing 206 and / or the shaft 204. In some cases, only a portion of the clean airflow 306 is routed through, or routed through, the channel. Petition 870250115914, dated 12 / 16 / 2025, page 42 / 77 30 / 44 internal 442. For example, clean airflow 306 is directed over the first arm 432, the second arm 434, the first arm 432 and / or the second arm 440. That is, the internal outlet covers 210 are not arranged around the entire rear housing 206. In some cases, the internal outlet covers 210 are arranged adjacent to base 430 and base 436 to route clean airflow 306 through base 430 and base 436 where the SiC MOSFETs are located.

[0058] The inverters 106 are coupled to the rear housing 206. In some cases, the inverters 106 rest directly against the rear housing 206 and are coupled to the rear housing 206 and / or are coupled to the rear housing 206 via one or more posts 444 (e.g., pins, spacers, etc.). The fasteners are arranged via one or more posts 444, respectively, and in the rear housing 206 to couple the inverters 106 to the rear housing 206. The posts 444 are of different lengths to accommodate a designated distance between the inverters 106 and the rear housing 206. Correspondingly, the fasteners may have different lengths. Any number of attachment points or mounting locations are used to couple the 106 inverters to the 206 rear housing. For example, in some cases, each of the 106 inverters couples to the 206 rear housing. Petition 870250115914, dated 12 / 16 / 2025, p. 43 / 77 31 / 44 in six locations.

[0059] A first post 444(1) and a second post 444(2) extend between the rear housing 206 and the first inverter 106(1). Fasteners are arranged through the first post 444(1) and the second post 444(2) and into the rear housing 206 (e.g., threaded receptacles) to couple the first inverter 106(1) to the rear housing 206. In other cases, the posts 444 are not required and the first inverter 106(1) comes into direct contact with the rear housing 206. The first inverter 106(1) is secured in such locations by means of fasteners. Similarly, a third post 444(3) and a fourth post (which is obscured) extend between the rear housing 206 and the second inverter 106(2). The fasteners are arranged through the third post 444(3) and the fourth post, in the rear housing 206, to couple the second inverter 106(2) to the rear housing 206.In other cases, the second inverter 106(2) comes into direct contact with the rear housing 206 and is secured in such locations by means of fasteners.

[0060] The direct coupling of the inverters 106 to the rear housing 206 transfers loads from the propeller 102 to the fuselage 300. For example, when thrust is generated from propeller 102, the thrust is transmitted to the inverters 106 from propeller 102. The coupling of the inverters 106 to the rear housing 206 transfers the thrust to the Petition 870250115914, dated 12 / 16 / 2025, page 44 / 77 32 / 44 rear housing 206, to the stator 200 and finally to the fuselage 300. Coupling the inverters 106 to the rear housing 206 reduces the weight of the propeller 100. For example, structurally integrating the inverters 106 and the rear housing 206 reduces the size, amount of material, etc., of the inverters 106 and the rear housing 206 compared to if the inverters 106 and the rear housing 206 were supported separately within the propeller 100. Furthermore, the direct coupling of the inverters 106 to the rear housing 206 also reduces the length of AC conductors arranged between the inverters 106 and the electric motor 104 (e.g., the stator 200). Shortening the AC conductors reduces EMF interference with the aircraft's electronic components.

[0061] Although a particular number and / or shape of the inverters 106 is / are described, the propeller 100 includes any number of inverters 106 and / or the inverters 106 include any shape. For example, in one embodiment, three or four inverters are coupled to the rear housing 206 and / or the inverters 106 are rectangular in shape. In such cases, the propeller 100 includes any number of inlet covers and outlet covers to route clean airflow 306 and dirty airflow 308 through, over, etc., the inverters 106. Furthermore, the inverters 106 are coupled to each other (e.g., through the supports) Petition 870250115914, dated 12 / 16 / 2025, page 45 / 77 33 / 44 428).

[0062] FIG. 5 illustrates an isometric view of a portion of the propeller 100, showing the outlet covers removed, according to examples in the present description. As shown, the first heat sink 208(1) is coupled (e.g., mounted) to the first inverter 106(1) along the base 430. The first post 444(1) and the second post 444(2) extend between the first inverter 106(1) and the rear housing 206. Fasteners are arranged at least partially through the first post 444(1) and the second post 444(2), and in the rear housing 206, to couple the first inverter 106(1) to the rear housing 206.

[0063] Other fasteners couple the first inverter 106(1) to the rear housing 206. For example, in a location where the first inverter 106(1) directly touches the rear housing 206, a fastener 500 threads into the rear housing 206. Any number of fasteners is used to secure the first inverter 106(1) to the rear housing 206. In some cases, alignment mechanisms (e.g., keys / pins, tabs / slots, etc.) are used to align the first inverter 106(1) to the rear housing 206. Although not shown, the second inverter 106(2) is similarly coupled to the rear housing 206.

[0064] FIG. 6 illustrates a coupling of the first Petition 870250115914, dated 12 / 16 / 2025, page 46 / 77 34 / 44 inverter 106(1) to rear housing 206, according to examples in this description. As introduced above, the first post 444(1) is disposed between the first inverter 106(1) and the rear housing 206. A fastener 600 is disposed through the first post 444(1) and into a receptacle 602 (e.g., threaded receptacle) defined by the rear housing 206. As the fastener 600 is tightened, the first inverter 106(1) becomes fastened to the rear housing 206. The first post 444(1) includes a first length (e.g., in the Z direction) to accommodate a disposed distance between the first inverter 106(1) and the rear housing 206. Other posts, however, which couple the first inverter 106(1) (or the second inverter 106(2)) to the rear housing 206, include similar or different lengths.For example, depending on a clearance distance arranged between the first inverter 106(1) and the rear housing 206, the length of the posts 444 is similar or different.

[0065] FIG. 7 illustrates a coupling of the first inverter 106(1) to the rear housing 206, according to examples in the present description. The fastener 500 is threaded into a receptacle 700 formed in the rear housing 206. The receptacle 700 is located or set within a spacer 702 of the rear housing 206. The first inverter 106(1) rests directly against the spacer 702. In Petition 870250115914, dated 12 / 16 / 2025, page 47 / 77 35 / 44 comparison with FIG. 6, for example, where the first post 444(1) is positioned between the first inverter 106(1) and the rear housing 206, certain mounting locations between the first inverter 106(1) and the rear housing 206 do not require the posts 444. That is, in FIG. 7, the first inverter 106(1) rests directly against the rear housing 206, thus eliminating the need for the posts 444.

[0066] FIG. 8 illustrates examples of mounting locations for the inverters 106, according to examples in the present description. In some cases, the inverters 106 are coupled to the rear housing 206 in six mounting locations. In FIG. 8, the mounting locations are described in relation to the first inverter 106(1). Also, in FIG. 8, the first inverter 106(1) is shown removed to illustrate the mounting locations. The discussion in FIG. 8 applies similarly to the mounting locations for the second inverter 106(2).

[0067] The mounting locations include a first mounting location 800, a second mounting location 802, a third mounting location 804, a fourth mounting location 806, a fifth mounting location 808, and a sixth mounting location 810. In some cases, the first inverter 106(1) couples directly to the rear housing 206 at the first mounting location 800, the second mounting location 802, the third mounting location 804, the fourth mounting location 806, the fifth mounting location 808, and the sixth mounting location 810. Petition 870250115914, dated 12 / 16 / 2025, page 48 / 77 36 / 44 assembly 810. In some cases, the poles 444 are arranged between the first inverter 106(1) and the first mounting location 800 and the second mounting location 802. For example, the first pole 444(1) is arranged between the first inverter 106(1) and the first mounting location 800. The second pole 444(2) is arranged between the first inverter 106(1) and the second mounting location 802.

[0068] At the first mounting location 800 and the second mounting location 802, the first inverter 106(1) does not directly abut the rear housing 206. Comparatively, at the third mounting location 804, the fourth mounting location 806, the fifth mounting location 808 and the sixth mounting location 810, the first inverter 106(1) directly abuts the rear housing 206. For example, the rear housing 206 defines spacers (e.g., similar to spacer 702) against which the first inverter 106(1) is seated. However, in some cases, posts 444 are arranged between the first inverter 106(1) and the rear housing 206 at the third mounting location 804, the fourth mounting location 806, the fifth mounting location 808 and the sixth mounting location 810.As such, a clearance distance between the first inverter 106(1) and the rear housing 206 at the mounting locations is different and the length of the posts 444 is correspondingly different. Petition 870250115914, dated 12 / 16 / 2025, p. 49 / 77 37 / 44

[0069] At the mounting locations, the rear housing 206 defines receptacles for receiving fasteners. For example, as discussed above in relation to FIGS. 6 and 7, the rear housing defines receptacle 602 and receptacle 700 for receiving fastener 600 and fastener 500 for coupling the first inverter 106(1) to the rear housing 206. Furthermore, due to the different clearance distances arranged between the first inverter 106(1) and the rear housing 206, fastener 500 may be shorter than fastener 600. The fasteners associated with the mounting locations may differ in length depending on the clearance distance.

[0070] FIG. 9 illustrates a coupling of the inverters 106 to the rear housing 206, according to examples in the present description. As introduced above, the inverters 106 are coupled to the rear housing 206 at different mounting locations. For example, each of the inverters 106 is coupled to the rear housing 206 at six mounting locations. In FIG. 9, the first inverter 106(1) is shown coupled to the rear housing 206 at the first mounting location 800, for example, through the first post 444(1) and the fastener 600 disposed through the first post 444(1) and in the receptacle 602 formed by the rear housing 206. As also shown in FIG. 9, the support 428 couples the first inverter 106(1) and the second inverter 106(2) together.

[0071] FIG. 10 illustrates a flow routing of Petition 870250115914, dated 12 / 16 / 2025, page 50 / 77 38 / 44 clean air 306 and dirty air flow 308 through portions of the propeller 100, according to examples in the present description. The clean air flow 306 is routed within the inner inlet cover 314 (through the front housing 312). The clean air flow 306 passes through flange 400, which is a component of the inner inlet cover 314. For example, openings 1000 in flange 400 allow clean air flow 306 to flow to the electric motor 104, internal to the stator 200.

[0072] Flange 400 attaches to fuselage 300 and stator 200. Flange 400 includes openings 402 that route dirty airflow 308, which flows between the inner intake cover 314 and the outer intake cover 320, over an outer side of stator 200. Fuselage 300 also includes openings 1002 that allow dirty airflow 308 to pass through them. As shown and discussed previously, the outer intake cover 320 attaches to fuselage 300.

[0073] Although several examples and embodiments are described individually in this document, the examples and embodiments may be combined, rearranged, and modified to arrive at other variations within the scope of this description.

[0074] Although the object has been described in language specific to structural features and / or acts Petition 870250115914, dated 12 / 16 / 2025, page 51 / 77 39 / 44 methodologically, it should be understood that the object defined in the appended claims is not necessarily limited to the specific characteristics or acts described. Instead, the specific characteristics and acts are disclosed as illustrative ways of implementing the claims. Example Clauses

[0075] The following paragraphs describe several examples. Any of the examples in this section can be used with any other example in this section and / or any of the other examples or embodiments described in this document.

[0076] A: An electric motor, comprising: a stator having a first side and a second side; a first housing coupled to the first side of the stator; a second housing coupled to the second side of the stator; a shaft having a first end and a second end, the shaft being rotatably supported by a first bearing and a second bearing; a propeller coupled to the first end of the shaft; and an inverter including an inverter housing directly coupled to the first housing.

[0077] B: The electric motor of paragraph A, further comprising an impeller coupled to the shaft, wherein the impeller is configured to direct the airflow through the electric motor and through the inverter housing during the operation of the electric motor. Petition 870250115914, dated 12 / 16 / 2025, page 52 / 77 40 / 44

[0078] C: The electric motor of paragraph A or B, further comprising a first airflow duct and a second airflow duct, wherein the impeller draws: a first portion of air through the first airflow duct and through the stator and a second portion of air through the second airflow duct and through a portion of the inverter housing.

[0079] D: The electric motor of any of the AC paragraphs, wherein the first housing includes a plurality of openings, wherein the first portion of air passes through the plurality of openings.

[0080] E: The electric motor of any of the paragraphs AD, in which at least six fasteners couple the inverter housing directly to the first housing.

[0081] F: An electric motor comprising: a stator; an air separator configured to separate the incoming air into a first air stream and a second air stream; a first housing coupled to a first side of the stator; a second housing coupled to a second side of the stator; one or more inverters directly coupled to the second housing; one or more first covers directing the first air stream to the electric motor; and one or more second covers directing the second air stream around the electric motor to one or more inverters.

[0082] G: The electric motor from paragraph F, in which a Petition 870250115914, dated 12 / 16 / 2025, page 53 / 77 41 / 44 or more first covers additionally direct the second airflow around the electric motor.

[0083] H: The electric motor of paragraph F or G, wherein: one or more inverters include at least one first inverter and one second inverter; and the first inverter and the second inverter are coupled by means of one or more supports.

[0084] I: The electric motor of any of the FH paragraphs, additionally comprising an impeller, wherein the impeller is configured to direct the first airflow to the electric motor.

[0085] J: The electric motor of any of the FI paragraphs, in which the impeller is configured to direct the second airflow around the electric motor to one or more inverters.

[0086] K: The electric motor of any of the paragraphs FJ, wherein: the second housing includes a plurality of orifices; and the first airflow exits the electric motor through the plurality of orifices.

[0087] L: The electric motor of any of the paragraphs FK, wherein one or more inverters include a first inverter and a second inverter, further comprising: one or more first posts arranged between the first inverter and the second housing; one or more second posts arranged between the second inverter and the second housing; one or more first fasteners, wherein Petition 870250115914, dated 12 / 16 / 2025, page 54 / 77 42 / 44 the first individual fasteners of one or more first fasteners are arranged through first individual posts of one or more first posts to couple the first inverter to the second housing; and one or more second fasteners, wherein the second individual fasteners of one or more second fasteners are arranged through second individual posts of one or more second posts to couple the second inverter to the second housing.

[0088] M: The electric motor of any of the FL paragraphs, wherein the first airflow and the second airflow are directed to provide cooling to one or more inverters.

[0089] N: An electric motor, comprising: a stator; a first inverter coupled to the electric motor, the first inverter configured to be cooled by means of a first portion of a first airflow that is directed into the stator and a first portion of a second airflow that is directed out of the stator; and a second inverter coupled to the electric motor, the second inverter configured to be cooled by means of a second portion of the first airflow and a second portion of the second airflow.

[0090] O: The electric motor of paragraph N, further comprising a housing coupled to the stator, the housing including a plurality of Petition 870250115914, dated 12 / 16 / 2025, page 55 / 77 43 / 44 holes, where the first airflow passes through a plurality of holes.

[0091] P: The electric motor of paragraph N or O, wherein: a whole portion of the first airflow is directed to provide cooling to the first inverter; a whole portion of the second airflow is directed to provide cooling to the second inverter; a whole portion of the first airflow is directed to provide cooling to the first inverter; and a whole portion of the second portion of the second airflow is directed to provide cooling to the second inverter.

[0092] Q: The electric motor of any of the paragraphs NP, further comprising: one or more first covers that form a first channel for directing the first internal airflow to the stator; and one or more second covers that form a second channel for directing the second external airflow to the stator.

[0093] R: The electric motor of any of the paragraphs NQ, wherein: the first portion of the second airflow is routed through a heat sink of the first inverter; and the second portion of the second airflow is routed through a heat sink of the second inverter.

[0094] S: The electric motor of any of the NR paragraphs, in which: the first airflow is routed Petition 870250115914, dated 12 / 16 / 2025, pp. 56 / 77 44 / 44 internally for the first inverter and the second inverter; and the second airflow is routed externally for the first inverter and the second inverter.

[0095] T: The electric motor of any of the NS paragraphs, additionally comprising one or more supports that couple the first inverter and the second inverter together.

[0096] Although the example clauses described above are described in relation to a specific implementation, it should be understood that, in the context of this document, the content of the example clauses may also be implemented by means of a method, device, system, computer-readable medium and / or other implementation. Furthermore, any of the AT examples may be implemented alone or in combination with any other or more of the AT examples. Petition 870250115914, dated 12 / 16 / 2025, pp. 57 / 77

Claims

1 / 7 CLAIMS 1. Electric motor, characterized in that it comprises: a stator having a first side and a second side; a first housing coupled to the first side of the stator; a second housing coupled to the second side of the stator; a shaft having a first end and a second end, the shaft being rotatably supported by a first bearing and a second bearing; a propeller coupled to the first end of the shaft; and an inverter including an inverter housing directly coupled to the first housing.

2. Electric motor, according to claim 1, characterized in that it further comprises an impeller coupled to the shaft, wherein the impeller is configured to direct the airflow through the electric motor and through the inverter housing during the operation of the electric motor.

3. Electric motor, according to claim 1 or 2, characterized in that it further comprises a first airflow duct and a second airflow duct, wherein the impeller draws: a first portion of air through the first airflow duct and through the stator, and a second portion of air through the second airflow duct and through a portion of the inverter housing.

4. Electric motor, according to any one of claims 1, 2 or 3, characterized in that the first housing includes a plurality of openings, wherein the first portion of air passes through the plurality of openings.

5. Electric motor, according to any one of claims 1, 2, 3 or 4, characterized in that at least six fasteners couple the inverter housing directly to the first housing.

6. Electric motor, characterized in that it comprises: a stator; an air separator configured to separate the incoming air into a first air stream and a second air stream; a first housing coupled to a first side of the stator; a second housing coupled to a second side of the stator; one or more inverters directly coupled to the second housing; one or more first covers that direct the first air stream to the electric motor; and one or more second covers that direct the second air stream around the electric motor to one or more inverters.

7. Electric motor, according to claim 6, characterized in that one or more of the first covers additionally direct the second airflow around the electric motor.

8. Electric motor, according to claim 6 or 7, characterized in that: one or more inverters include at least one first inverter and one second inverter; and the first inverter and the second inverter are coupled through one or more supports.

9. An electric motor, according to any one of claims 6, 7 or 8, characterized in that it further comprises an impeller, wherein the impeller is configured to direct the first airflow to the electric motor.

10. Electric motor, according to any one of claims 6, 7, 8 or 9, characterized in that the impeller is configured to direct the second airflow around the electric motor to one or more inverters.

11. Electric motor, according to any one of claims 6, 7, 8, 9 or 10, characterized by the suit of Petition 870250115914, dated 12 / 16 / 2025, p. 60 / 77 4 / 7 in that: the second housing includes a plurality of holes; and the first airflow exits the electric motor through the plurality of holes.

12. An electric motor, according to any one of claims 6, 7, 8, 9, 10 or 11, wherein one or more inverters include a first inverter and a second inverter, characterized in that it further comprises: one or more first posts arranged between the first inverter and the second housing; one or more second posts arranged between the second inverter and the second housing; one or more first fasteners, wherein the individual first fasteners of the one or more first fasteners are arranged through the individual first posts of the one or more first posts to couple the first inverter to the second housing; and one or more second fasteners, wherein the individual second fasteners of the one or more second fasteners are arranged through the individual second posts of the one or more second posts to couple the second inverter to the second housing.

13. Electric motor, according to any of the claims 6, 7, 8, 9, 10, 11 or 12, characterized in that the first airflow and the second airflow are directed to provide cooling to one or more inverters.

14. Electric motor, characterized in that it comprises: a stator; a first inverter coupled to the electric motor, the first inverter configured to be cooled by means of a first portion of a first airflow that is directed into the stator and a first portion of a second airflow that is directed out of the stator; and a second inverter coupled to the electric motor, the second inverter configured to be cooled by means of a second portion of the first airflow and a second portion of the second airflow.

15. Electric motor, according to claim 14, characterized in that it further comprises a housing coupled to the stator, the housing including a plurality of orifices, through which the first airflow passes.

16. Electric motor, according to claim 14 or 15, characterized in that: the entirety of the first portion of the first airflow is directed to provide cooling to the first inverter; the entirety of the second portion of the first airflow is directed to provide cooling to the second inverter; the entirety of the first portion of the second airflow is directed to provide cooling to the first inverter; and the entirety of the second portion of the second airflow is directed to provide cooling to the second inverter.

17. Electric motor, according to any one of claims 14, 15 or 16, characterized in that it further comprises: one or more first covers that form a first channel for directing the first internal airflow to the stator; and one or more second covers that form a second channel for directing the second external airflow to the stator.

18. Electric motor, according to any one of claims 14, 15, 16 or 17, characterized in that: the first portion of the second airflow is routed through a heat sink of the first inverter; and the second portion of the second airflow is routed through a heat sink of the second inverter.

19. Electric motor, according to any one of claims 14, 15, 16, 17 or 18, characterized in that: the first airflow is routed internally to the first inverter and the second inverter; and the second airflow is routed externally to the first inverter and the second inverter.

20. Electric motor, according to any one of claims 14, 15, 16, 17, 18 or 19, characterized in that it further comprises one or more supports that couple the first inverter and the second inverter together. Petition 870250115914, dated 12 / 16 / 2025, pp. 64 / 77

Images