Abstract: A downhole motor includes a primary fluid path between a housing and a rotor and a secondary fluid path between the rotor and a stator. Fluid is diverted from the primary fluid path through a secondary inlet to the secondary fluid path to lubricate the motor. A magnet is located proximate the secondary inlet to bias magnetic particles in the drilling fluid away from the secondary inlet.

Abstract: A rotor assembly includes a shaft defining a lubricant inlet channel for receiving a lubricant and a lamination stack. The lamination stack is rotatably coupled to the shaft, extends between first and second lamination stack ends, and defines a lubricant cooling channel in fluid communication with the lubricant inlet channel. The rotor assembly also includes a first end cap adjacent to the first lamination stack end and a second end cap adjacent to the second lamination stack end. One of the first end cap and the second end cap defines an end cap inlet at a first radial distance from the shaft, a lubricant outlet channel defined to extend at least partially radially inward toward the shaft, and an end cap outlet at a second radial distance from the shaft which is less than the first radial distance for expelling the lubricant.

Abstract: An electrical machine assembly includes a shaft rotatable about an axis of an electric machine and first and second endcaps mounted to the shaft. The first endcap includes a first endcap coolant channel. The second endcap includes a second endcap coolant channel. A rotor is mounted to the shaft axially between the first and second endcaps. The rotor includes first rotor coolant channels and second rotor coolant channels. The first rotor coolant channels are configured to communicate liquid coolant that is received from the first endcap coolant channel axially through the rotor in a first direction. The second rotor coolant channels are configured to communicate liquid coolant that is received from the second endcap coolant channel axially through the rotor in a second direction that is opposite the first direction.

Abstract: The invention relates to a gas supply apparatus (21) having a shaft (23) which is rotatably mounted in a housing (22) using a gas bearing assembly (18) that is temperature-controlled with dispensing gas, and comprising a gas temperature-control device. In order to improve the gas supply apparatus (21) in respect of its manufacturing process and/or its functions, the gas temperature-control device is combined with a liquid temperature-control device (40) in an annular space (33) of the gas supply apparatus (21).

Abstract: A vehicle drive and control system for a vehicle having a prime mover and an operator control device such as a steering wheel is disclosed. A transaxle includes a power generating device in a transaxle housing and driven by the prime mover, an electric motor in the transaxle housing and powered by the power generating device, and at least one axle extending out of the transaxle housing and engaged to and driving one of a pair of driven wheels. A battery is powered by the power generating device, and connected to a controller. The controller is operatively connected to the operator control device and to the electric motor such that the controller controls electric motor output based on input received via the operator control device.

Abstract: A fan frame includes a housing, a shaft seat, a curved rib, a plurality of first ribs, and a plurality of second ribs. The shaft seat is disposed at the center of the housing. The curved rib is disposed between the housing and the shaft seat. The first ribs extend through the curved rib and connect the shaft seat to the housing, and the second ribs connect the curved rib to the shaft seat.

Abstract: A vehicle, electric machine, and method of manufacturing an electric machine include a stator having teeth extending from a yoke portion toward a rotor and defining slots between adjacent teeth with windings positioned within the slots, wherein the slots are coated with an electrically insulating material having an arcuate surface exiting the slots and extending at least partially over the teeth on at least one end face of the stator to form a winding guide for bending/positioning the windings. The winding guide may be formed by a molded epoxy that replaces insulating paper slot liners while providing a template for forming the hairpin bends of end windings.

Abstract: The present disclosure discloses a high-speed motor and an assembling method. The high-speed motor includes an air duct housing, a rotor subassembly, a stator subassembly, a bearing sleeve subassembly, and a fan blade. A mounting ring coaxial with the air duct housing is arranged at the middle right part in the air duct housing; several air guide plates are uniformly distributed between an outer wall of the mounting ring and an inner wall of the air duct housing; a bearing sleeve mounting cavity, a bearing mounting cavity, and a stator mounting cavity being respectively arranged at a left part, a middle part and a right part in the mounting ring; the rotor subassembly is coaxial with the mounting ring and is mounted in the mounting ring in a horizontal direction. The present disclosure has the advantages of reducing the resonance, lowering the noise, and the like.

Abstract: A rotor for an electric machine including a shaft having a first end, a second end, an outer surface and an inner surface that defines a passage extending between the first end and the second end. A plurality of rotor laminations is mounted to the outer surface of the shaft. A plurality of windings extends about the plurality of rotor laminations. The plurality of windings includes a first end turn arranged proximate the first end and a second end turn arranged proximate the second end turn. An end turn support is arranged at one of the first and second end turns. The end turn support includes a cooling circuit fluidically connected to the passage. The cooling circuit includes an outlet that directs coolant onto the one of the first and second end turns.

Abstract: A rotor and a method of making such a rotor, wherein the rotor has a shaft, a longitudinal axis, and a rotor packet connected to the shaft at least in torsion-resistant manner. The rotor packet is assembled from individual sheet lamellae, wherein the rotor packet has an opening for receiving the shaft. The shaft is a hollow shaft with a wall, wherein the wall of the shaft has, on its side facing toward the opening, recesses extending in the longitudinal direction. An electric motor, in particular a synchronous or hybrid synchronous machine, including a rotor and a stator, has such a rotor. The recesses are produced by cutting methods, in particular milling, or reshaping methods, in particular pressing.

Abstract: A cooling radiator intended to be incorporated in a motorized fan unit of a motor vehicle. The cooling radiator includes a transverse wall extended perpendicularly at its perimeter by a peripheral wall so as to define an internal volume. At least one wall of the cooling radiator forms a support for at least one portion of a cooling circuit in which a cooling fluid circulates.

Abstract: A polyvinyl chloride polymer (PVC) composite material is described herein. The PVC composite material includes 40-60 parts by weight of PVC, 40-60 parts by weight of calcium carbonate, 0.2-0.6 parts by weight of composite foaming agent, 3-5 parts by weight of foam regulator, 2-4 parts by weight of toughener, 0.8-1.2 parts by weight of lubricant, and 2-3 parts by weight of stabilizer. Meanwhile, the present invention provides a foam board made of the PVC composite material and flooring. The resulting PVC products have a high-strength structure and a good foaming property, bring the comfort to feet as the resilient flooring does, have a satisfied sound reduction and can be easily installed as the hard flooring could.

Abstract: An electric drive unit that includes an electric motor having a rotor with a rotor shaft and a heat exchanger that is received in the rotor shaft. The heat exchanger has a plurality of heat exchanger plates, each of which having a hub, a rim member, and disc spring portion that interconnects the hub and the rib member. Each disk spring portion defines a plurality of coolant apertures. The heat exchanger plates are press-fit to the rotor shaft such that each disc spring portion is deflected from a pre-installation state, and each rim member is engaged to an interior surface of the rotor shaft while being spaced apart from adjacent rim members along a rotational axis of the rotor. A first coolant passage is disposed through the hubs of the plates. The coolant apertures in the heat exchanger plates cooperate to form a plurality of second coolant passages.

Abstract: A system comprises a stator core defining a plurality of winding slots between circumferentially spaced apart teeth. A respective cooling channel is defined within each of the circumferentially spaced apart teeth for circulation of coolant fluid through the stator core. The stator core is a laminated structure, where the teeth, winding slots, and cooling channels are part of a common laminated structure with the stator core.

Abstract: A rotor (1) for an electric machine (25) which comprises a rotor support (2). The rotor support has cylindrical inner and outer shells (3, 4). A magnetic flux-carrying rotor component has first and second end faces (6, 7) and carries the cylindrical outer shell (4). A rotationally shaft section (8) is arranged in an inside space (9) of the rotor support and mounted coaxially with the rotor support. At least in the area of the first end face (6) the outer shell has first teeth which face toward the magnetic flux-carrying rotor component and a first tooth base between respective pairs of first teeth, and at least in the area of the second end face (7) the outer shell (4) has second teeth which face toward the magnetic flux-carrying rotor component and a second tooth base between respective pairs of second teeth. The invention also relates to an electric machine.

Abstract: A first bracket in an electric motor includes an inflow path through which outside air flows inside, and an outflow path through which the air having flowed in flows outside. A stator core included in the electric motor includes a first ventilation path that is coupled with the inflow path and a second ventilation path that is coupled with the outflow path. A second bracket includes a third ventilation path that forms a flow path from the first ventilation path to the second ventilation path positioned symmetrically to the first ventilation path with respect to a plane containing a rotation axis. The air having flowed into the inside of the electric motor through the inflow path passes, in order, through the first ventilation path, the third ventilation path, and the second ventilation path, and flows out to the outside of the electric motor through the outflow path.

Abstract: A frame included in an electric motor has an inflow hole that allows outside air to flow in an interior of the electric motor and an outflow hole that allows the outside air having flowed in to flow out of the electric motor. The electric motor includes a first partition member forming a first ventilation path between the first partition member and the frame, and a second partition member forming a second ventilation path between the second partition member and the frame. In addition, the stator has a third ventilation path penetrating through the stator from one end to another end of the stator in a direction of a rotational axis and configured to communicate with the first ventilation path and the second ventilation path.

Abstract: An electrical machine assembly includes a stator. The stator includes a core, windings assembled into the core, and a back iron heat exchanger mounted to the core. A first end plate is mounted at a first end of the core and back iron heat exchanger. A second end plate is mounted at a second end of the core and back iron heat exchanger opposite the first end plate. A coolant circuit passes from a coolant inlet in the back iron heat exchanger, through the back iron heat exchanger, into the first end plate, out of the first end plate, through the core, into the second end plate, and out of the second end plate.

Abstract: The present invention relates to a motor comprising: a motor housing; a stator which is provided in the motor housing and has a coil; a rotor installed in the stator to be rotatable about a rotary shaft; and a spray hole which is formed in the circumferential surface of the rotor by passing through the circumferential surface in a radial direction and which sprays a cooling fluid in the motor housing onto the coil according to the rotation of the rotor. Therefore, cooling by oil convection can be accelerated while minimizing resistance due to the oil.

Abstract: An electric machine for a work vehicle including a housing, a stator assembly positioned inside the housing, and a rotor assembly rotatably connected to the housing via a bearing. The rotor assembly is positioned to form an air gap between the stator assembly and the rotor assembly. A front air dam is positioned at a first end of the housing and adjacent to the air gap. The front air dam includes an external barrier, an internal barrier, an opening in the internal barrier, and a passageway in the internal barrier. A fan is attached to the rotor assembly and positioned within the housing. The fan generates a first air flow towards the air gap and a second air flow through the passageway.

Abstract: An electric motor comprises a rotor and a stator having a yoke. The yoke includes a plurality of teeth mounted to the yoke and being aligned substantially parallel to an axis of rotation of the motor, each tooth including a first radial end adjacent to the yoke and a second radial end extending from the yoke, a plurality of field coils, each field coil being wrapped around a tooth, and a coolant circulation path including a first coolant channel defined between adjacent field coils and a second coolant channel defined between adjacent field coils and between the first radial ends of adjacent teeth. A third coolant channel may be defined between adjacent field coils and between the second radial ends of adjacent teeth.

Abstract: An electric machine, characterized by two partial machines, each of which has a housing with a bottom-side end wall, in which in each case a stator and a rotor having a hollow rotor arm is accommodated, the two housings being arranged adjacent to one another with their bottom side end walls, with a common distribution device being provided in a cavity between the two housings for distributing a coolant that is used to cool the rotors and which is coupled with at least one housing-side inlet via which the coolant is supplied, and at least one housing-side outlet via which the coolant is discharged, and which is formed to distribute the coolant supplied into both hollow rotor arms and to guide the coolant flowing back from it to the at least one outlet.

Abstract: A dynamoelectric machine includes: a winding formed of a bundle of conducting wires; a stator core including a slot in which the winding is disposed; and an insulating paper disposed between the stator core and the winding in the slot, wherein the conducting wires have a self-fusing property, the insulating paper has a foam layer, and a coolant channel is formed between the conducting wires of the winding.

Abstract: An electric drive unit that includes an electric motor having a rotor with a rotor shaft and a heat exchanger that is received in the rotor shaft. The heat exchanger has a plurality of heat exchanger plates, each of which having a hub, a rim member, and disc spring portion that interconnects the hub and the rib member. Each disk spring portion defines a plurality of coolant apertures. The heat exchanger plates are press-fit to the rotor shaft such that each disc spring portion is deflected from a pre-installation state, and each rim member is engaged to an interior surface of the rotor shaft while being spaced apart from adjacent rim members along a rotational axis of the rotor. A first coolant passage is disposed through the hubs of the plates. The coolant apertures in the heat exchanger plates cooperate to form a plurality of second coolant passages.

Abstract: A pump assembly and a high-pressure cleaning apparatus, the pump assembly includes a motor assembly, a motor housing for receiving the motor assembly, a transmission assembly driven by the motor assembly, a pump, and a pipe assembly connecting the motor housing and the pump. Mutually independent heat dissipation portions are provided at two sides of the motor housing.

Abstract: An electric machine for an electrified vehicle includes a stator core configured to receive a plurality of windings and an overmolded midsection formed about the stator core. The midsection also defines a first interlocking feature disposed near an end face of the stator core. The electric machine also includes an end cap defining at least a portion of a coolant channel and a second interlocking feature configured to engage the first interlocking feature and create a fluid seal to retain fluid within the coolant channel. The coolant channel is further arranged to encase end portions of the plurality of windings and direct circulating coolant across the end portions.

Abstract: A laminated core for an electric machine has at least one cooling duct which runs within the laminated core and can be flowed through by a cooling fluid for cooling the laminated core. The cooling duct has at least one first throughflow opening which can be flowed through by the cooling fluid and penetrates an outer circumferential-side shell face of the laminated core, which shell face points toward the outside in the radial direction of the laminated core. The cooling duct further has at least one second throughflow opening which can be flowed through by the cooling fluid and penetrates an inner circumferential-side shell face of the laminated core, which shell face points toward the inside in the radial direction of the laminated core.

Abstract: A stator for an electrical machine, with at least one laminated stator core, and with at least one end cap following the laminated stator core in the axial direction of the stator, at least one line element, which is formed separately from the end cap and separately from the laminated stator core and has at least one first cooling channel, through which a cooling medium for cooling the stator may flow, being provided, having a first length region, extending in the laminated stator core, and a second length region, which extends in the end cap, which has at least one second cooling channel, through which the cooling medium may flow and which is fluidically connected to the first cooling channel.

Abstract: A motor assembly for a vehicle seat assembly is provided with an electric motor having a motor shaft for rotation in a first direction and a second direction opposite to the first direction, a first fluid transfer device driven by the motor shaft to provide fluid flow therefrom, a one-way clutch assembly driven by the motor shaft, and a second fluid transfer device driven by the motor shaft via the clutch assembly to provide fluid flow therefrom when the clutch assembly is engaged. The second fluid transfer device is decoupled from the motor shaft when the clutch assembly is disengaged. A seat assembly having the motor assembly, and a method of controlling the seat assembly are also provided.

Abstract: A rotor for an electric machine, having a laminated core, which is arranged on a shaft and provided with magnets. Multiple individual adjoining plates pushed onto a shaft or of partial laminated cores having multiple plates have a central borehole accommodating the shaft. At least a part of the plates or partial laminated cores are pushed onto the shaft pivoted by a predetermined pivot angle (?). Every plate or partial laminated core includes multiple coolant passages arranged distributed around the center (Z) of the borehole. The angle offset of two adjacent coolant passages corresponds to the pivot angle (?).

Abstract: A cooling structure for a vehicle. The vehicle includes a motor. The cooling structure includes a gear case, an inverter, and a cooling flow path. The gear case has an outer face and an inner face, and contains a gear mechanism and an oil. The inverter is provided on the outer face of the gear case, and configured to be electrically coupled to the motor. The cooling flow path is provided between the inner face of the gear case and the inverter, and configured to allow a refrigerant to flow therethrough.

Abstract: Disclosed is a high-speed turbo machine enabling cooling thermal equilibrium and, more particularly, to a high-speed turbo machine enabling cooling thermal equilibrium, the high-speed turbo machine maximizing the cooling efficiency thereof by compressing and discharging external air suctioned therein, cooling an air compressor in a suction air-cooling method, decreasing a flow path of air for cooling the inside of the turbo machine and the air compressor, and optimizing the flow path. Accordingly, the present invention uses the suction air-cooling method and guides the flow of air for cooling the turbo machine through a specific path, so that it maximizes the efficiency and durability of the turbo machine, the cost reduction owing to the structural simplification of the turbo machine, and the easiness of maintenance by preventing an increase in temperature of the inside of the turbomachine casing (100) and the air compressor (200).

Abstract: An electric machine comprising at least one housing in which a rotor having coolant guide vanes provided at an end face is accommodated, and an annular cooling fin structure through which coolant conveyed by the coolant guide vanes is passed and having cooling fins which are axially covered by an annular cover section in such a way that there is an inlet area for the coolant supplied by the coolant guide vanes and an outlet area, wherein the cooling fin structure is formed on a side of an axial end wall of the housing facing the interior of the housing, on which an annular disk-shaped cover forming the cover section is attached.

Abstract: Electrical generators having one or more conformal support and cooling devices for use in supporting and cooling rotating elements of the generator are disclosed herein. An electrical generator includes a housing, a shaft disposed axially through the housing, a rotor assembly including a plurality of poles that are disposed within the housing and mounted on the shaft, a support wedge disposed between two of the plurality of poles. The conformal support and cooling device includes an internal cooling channel in a helical configuration or a V-shape configuration that extends from a first length-wise end of the support and cooling device to a second length-wise end of the support and cooling device. Additive manufacturing processes are employed to fabricate the conformal support and cooling device.

Abstract: A cooling mechanism for a vehicle electric motor. The cooling mechanism includes: a coolant oil passage provided between a rotor core and a rotor shaft of the electric motor; an oil supply passage provided inside the rotor shaft and communicating with the coolant oil passage; and at least one first discharge port and at least one second discharge port provided in respective first and second end plates disposed on respective opposite sides of the rotor core. The coolant oil passage includes a first passage portion communicating with the at least one first discharge port, and a second passage portion communicating with the at least one second discharge port. Each of the at least one first discharge port is located in a position that is different from a position of any one of the at least one second discharge port as seen in an axial direction of the rotor shaft.

Abstract: A medium conveying and heat exchange device and a vortex flow separator for an iron core of an electromagnetic device is provided. The vortex flow separator includes a jet pipe and a vortex flow separation pipe, the vortex flow separation pipe includes a vortex flow chamber, a cold end pipe section and a hot end pipe section. Compressed airflow flows through the jet pipe to form spiral airflow and flow into the vortex flow chamber in a tangential direction thereof. A valve having a cone-shaped surface is arranged inside the hot end pipe section, central airflow of the spiral airflow passes by the cone-shaped surface of the valve and flows back, and is cooled to become cold airflow, and then flows out from the cold end pipe section, to serve as cooling and drying airflow of the input electromagnetic device.

Abstract: A rotor that includes a shaft; a rotor core that is attached to the shaft and that is configured of a plurality of electric steel plates that are stacked; and a permanent magnet that is embedded in the rotor core, wherein: a coolant supply port that supplies a coolant to the rotor core is provided in the shaft, and at least two electric steel plates of the plurality of electric steel plates each include a first portion that has a first thickness in a rotational axis direction and a second portion that has a second thickness in the rotational axis direction, which is thinner than the first portion, the second portion extending in a radial direction and configuring a flow path through which the coolant supplied from the coolant supply port of the shaft flows.

Abstract: An electric motor includes one or more channels or grooves for directing fluid along the rotor as the rotor rotates.

Abstract: A thrust assembly motor is described, which can be used in a distributed electric propulsion system. The thrust assembly motor may include a revolved-wedge shaped ring on a leading edge of a motor stator, with a row of axial stator blades extending therefrom. The revolved-wedge shaped ring provides a mounting surface for the axial stator blade row while also controlling the ratio of airflow mass entering the outer gap versus the inner gap. The axial stator blade row, mounted to the revolved-wedge shaped ring, is configured to convert tangential kinetic energy (i.e., associated with a velocity component of the airflow) in the cooling airflow aft of the cooling fan rotors into static pressure rise after interaction with the axial stator blade row, during flight of the hybrid-propulsion aircraft.

Abstract: In a compressor, a sufficient insulation distance is ensured between a motor and a compression mechanism, and the amount of lubricating oil that flows out with refrigerant discharged from the compressor is reduced, while the volume of the compressor is reduced. The compressor includes: a compression mechanism that compresses refrigerant; a motor unit above the compression mechanism to drive the compression mechanism; a shell that houses the compression mechanism and the motor unit; and a lower insulating member between the compression mechanism and the motor unit. The motor unit includes a stator fixed to the shell, and a rotor spaced from an inner circumferential surface of the stator by a predetermined gap. The rotor has a rotor passage that causes spaces above and below the motor unit to communicate with each other, and the lower insulating member is in a region outward of the inner circumferential surface of the stator.

Abstract: Rf power is supplied to a vacuum processing module in that in the plasma processing module a time invariant impedance transform is performed by an impedance transform network in the plasma processing module and a time variable matching is performed by a matchbox connected to the impedance transform network. The impedance transform network includes an inductive element of a hollow conductor. A cooling medium is flown through the hollow conductor of the impedance transform network as well as through a part of the plasma processing module to be cooled and not being part of the impedance transform network at the plasma processing module.

Abstract: An electric liquid pump includes a casing having a central portion, rear cover and front cover, having an inlet and an outlet for the liquid. The central portion has first and second compartments, with the second compartment in fluid communication with the front cover interior. The pump includes an impeller and an electric motor, for operating the impeller, a stator housed in the first compartment, a rotor, coaxial with the stator, housed in the second compartment and an electronic card for supplying the stator at least partly housed in the rear cover. The central portion includes a plurality of walls delimiting a plurality of gaps in fluid communication with the second compartment and the front cover interior such that the liquid circulates in the gaps. The walls at least partly face the stator such that the liquid circulating in the corresponding gap removes heat from the stator.

Abstract: Variable temperature analytical instruments are provided that can include: a mobile component comprising a cold source; a substantially fixed analysis component; and an interface configured to couple the mobile component with the analysis component. Variable temperature analytical instruments are also provided that can include: a mobile analysis component; a substantially fixed component comprising a cold source; and an interface configured to couple the mobile component with the analysis component.

Abstract: A compressor includes a rotor driven by a shaft and configured to compress air and a motor for driving the shaft. At least one bearing facilitates rotation of the shaft. A motor cooling loop is configured to provide motor cooling air to the motor. A bearing cooling loop is configured to provide bearing cooling air to the at least one bearing. A bearing support is configured to support the least one bearing, the bearing support includes an opening. A duct is configured to communicate air from the opening to an inlet of the compressor. A method for cooling a compressor is also disclosed.

Abstract: A gas turbine engine includes an electrical device and a microchannel cooling system in communication with the electrical device to remove heat.

Abstract: A rotor is provided. The rotor includes a main body, a plurality of magnets and a plurality of magnet-receiving slots. The plurality of magnet-receiving slots are disposed on the main body and disposed around a central axis. Each two adjacent magnet-receiving slots are symmetrical to each other. Each magnet-receiving slot includes a slot body and a first flux barrier connected with each other. Each magnet is contained in the corresponding slot body. Each first flux barriers includes a respective arc-cutting start point. A minimum arc-cutting distance is formed between the two respective arc-cutting start points. Each of the two respective arc-cutting start points is extended toward the central axis along an arc with a first arc length radius to define a first arc-cutting end point. The first arc length radius is greater than or equal to 0.2 times of the minimum arc-cutting distance.

Abstract: A motor unit includes a motor including a rotor to rotate about a motor axis, a reduction gear including an intermediate gear to rotate about an intermediate axis and connected to the motor, a differential including a ring gear to rotate about a differential axis and connected to the reduction gear, a housing including a housing space to house the motor, the reduction gear, and the differential, oil in a vertically lower region of the housing space, and an oil passage to lead the oil from the vertically lower region of the housing space to be fed to the motor. The housing includes a ceiling portion directly above the reduction gear and the differential. At least a portion of the ring gear is lower than a liquid surface of the oil in the vertically lower region of the housing space. The motor axis, the intermediate axis, and the differential axis extend in parallel with one another along a horizontal direction. Each of the intermediate axis and the differential axis is lower than the motor axis.

Abstract: Provided is a rotary electric machine that achieves high motor efficiency with little loss. This rotary electric machine is equipped with: a stator core arranged opposing the circumferential surface of a rotor, and in which multiple slots, wherein openings opening toward the rotor are formed, are formed in the circumferential direction; and coils inserted into the slots. A mixture of a soft magnetic powder and a resin material is formed in the openings of the slots, and the relative permeability of the mixture is 5-35.

Abstract: A method for manufacturing an electrical machine includes forming a plurality of laminations for a stator or a rotor, each lamination including a cooling aperture; stacking the laminations together, the cooling apertures being aligned to form a cooling passage; securing the stacked laminations together; and sealing the laminations together at at least one desired location by applying metal plating to the stacked and secured laminations at the at least one desired location.

Abstract: An embodiment of an electric motor assembly includes a stator assembly extending generally along the longitudinal axis and at least partially enclosing a rotor assembly also extending along the longitudinal axis. The rotor assembly includes a rotating portion and one or more sets of rotor windings. The stator assembly includes a stationary housing having at least an inner wall and an outer wall, and one or more sets of stator windings in electromagnetic communication with the one or more sets of rotor windings. A heat exchanger is integrally formed into the housing, and includes a plurality of dividing walls extending between the inner and outer housing walls. The plurality of dividing walls are arranged at least partially circumferentially around the longitudinal axis to define, with the inner and outer walls, a corresponding plurality of integral heat exchanger channels arranged at least partially circumferentially around the one or more sets of stator windings.