Abstract: An electric motor comprises a housing, a stator mounted stationary within the housing and having end turn windings, a rotatable central shaft, a rotor mounted onto the central shaft for rotation within the stator, the stator, central shaft and rotor all positioned co-axially within the housing, a rotor end ring mounted onto the central shaft adjacent an axial end of the rotor, the rotor end ring including a body, a plurality of outlets adapted to allow coolant to flow from a back side to a face of the body, and a recess formed within the face of the body, wherein coolant flowing through the outlets flows across the recess toward an outer circumference of the body, and the outer circumference of the body is configured to prevent coolant from flowing into a circumferential air gap between the stator and the rotor.

Abstract: A rotating electric machine unit includes a first rotating electric machine, a second rotating electric machine, and a case having a case main body and a case cover. The first rotating electric machine and the second rotating electric machine each includes a stator core, a multi-phase coil attached to the stator core, and a power distribution member connecting the multi-phase coil. The case cover includes a first bulging portion facing the coil end of the first rotating electric machine, and a third bulging portion facing the coil end of the second rotating electric machine. The third bulging portion is positioned closer to a case main body side than the first bulging portion, and at least a part of a wiring connected to the first rotating electric machine is arranged along a surface of the third bulging portion.

Abstract: The present invention may provide a motor comprising: a shaft; a rotor coupled to the shaft; and a stator disposed outside the rotor, wherein the rotor comprises: a bearing holder including a cylindrical portion and a flange portion; a first bearing and a second bearing which are arranged on the cylindrical portion; a rotor core including a hole coupled to the cylindrical portion; and a magnet coupled to the rotor core, wherein the rotor core includes a pocket portion, the magnet is disposed in the pocket portion, the flange portion is disposed on the rotor core and the magnet, and the cylindrical portion includes a first region on which the first bearing is disposed and a second region on which the second bearing is disposed, wherein the first region and the second region of the cylindrical portion are inserted into the hole of the rotor core.

Abstract: An embodiment relates to a rotor and a motor including the same, the rotor comprising: a rotor core; coils wound around the rotor core; covers respectively arranged at the upper part of the rotor core, wherein the cover includes: a main body disposed at the rotor core; a plurality of blades arranged on the upper surface of the main body; and at least two first protruding parts protruding in the axial direction from the upper surface of the main body. Therefore, the rotor and the motor including the same can perform a balance correction operation.

Abstract: One aspect of a motor of the present disclosure may include a rotor having a motor shaft disposed along a central axis extending in one direction, a stator facing the rotor via a gap in a radial direction, and a housing having an accommodating portion configured to accommodate the rotor and the stator, and to enable oil to be stored therein, wherein the housing comprises a lower wall portion facing a vertical-directional lower region in the inside of the accommodating portion, the lower wall portion comprises a cooling flow passage formed therein, and refrigerant flows in the cooling flow passage, and at least a portion of the cooling flow passage overlaps the vertical-directional lower region in the inside of the accommodating portion when viewed along a vertical direction.

Abstract: The invention relates to an electric motor with an integrated cooling device, which uses in particular bleed air as the primary coolant for cooling components of the stator and/or the rotor. Ambient air accelerated by the propulsion means, for example by a propeller, that is driven by the electric motor is used here as the bleed air. A channel system is integrated within the stator housing that has one or more channels for the targeted feed of the primary coolant to the component to be cooled. In the case of cooling the stator, a heat exchanger is also integrated within the stator housing, for example an annular heat exchanger that is arranged coaxially with respect to the stator and to which the primary coolant is fed. For cooling the rotor, a coolant passage is provided that also includes the air gap of the electric machine, for example.

Abstract: A motor includes a shaft presenting a shaft lead end, a switch assembly including a switch arm shiftable between a first position and a second position, and shield structure. The shaft lead end and the switch assembly are disposed axially outward of an endhsield. The shield structure is disposed axially outward of the switch arm to at least substantially restrict direct tool access to the switch arm from an axially outward position relative to the switch arm. The shield structure at least in part defines first and second tool access channels each extending radially inwardly to the shaft lead end, such that the shield structure enables direct tool access to the shaft lead end via the tool access channels but prevents or at least substantially restricts direct tool access to the switch arm via the tool access channels.

Abstract: A fan motor housing including a circumferential motor housing having a radially outer surface and a radially inner surface and defining a primary axis including a first plurality of concentric flow channels disposed between the radially outer surface the radially inner surface, wherein the concentric flow channels extend in an axial direction parallel to the primary axis, a second plurality of concentric flow channels disposed between the radially outer surface and the radially inner surface, extending in an axial direction parallel to the primary axis, wherein the first and second pluralities of concentric flow channel are thermodynamically connected, a first plurality of radial conduits connecting the second plurality of flow channels to the radially inner surface of the motor housing, and a second plurality of radial conduits connecting the radially inner surface of the motor housing to the second plurality of flow channels.

Abstract: Described are, among other things, an electric machine (10) and a housing (12) for an electric machine. The electric machine (10) is provided with a liquid cooling arrangement and comprises a housing (12). The housing (12) is formed as one unitary element and comprises a first space (30) in which first space (30) a stator (21) and a rotor (23) are located. The rotor (23) has a shaft (20). Further, a second space (50) is formed in the housing (12). In the second space (50) electronics (54) for operation of the electric machine is located. Also, a third space (40) is formed in the housing (12), the third space (40) is located, seen in axial direction of the shaft (20), between the first space (30) and the second space (50). The third space (40) comprises at least one inlet (18) for a cooling liquid and at least one outlet (28) for the cooling liquid.

Abstract: An electric machine includes a frame and a plurality of electrical components including a rotor assembly and a stator assembly. The electric machine further includes an auxiliary blower mounting arrangement for cooling the electrical components and/or a modular exhaust assembly for noise attenuation, wherein the modular exhaust assembly further has one or more louvers allowing cooling fluid for cooling the electrical components to exit the electric machine.

Abstract: A stator sleeve assembly for an electric machine includes a first cylindrical housing portion defining an inner radial cavity defined by at least one circumferential wall and an outer radial cavity, and a set of radial passages fluidly connecting the inner radial cavity with the outer radial cavity, and a second cylindrical housing portion defining a third cavity, the second housing portion axially spaced from the first housing portion.

Abstract: A heat pipe assembly includes walls having porous wick linings, an insulating layer coupled with at least one of the walls, and an interior chamber sealed by the walls. The linings hold a liquid phase of a working fluid in the interior chamber. The insulating layer is directly against a conductive component of an electromagnetic power conversion device such that heat from the conductive component vaporizes the working fluid in the porous wick lining of the at least one wall and the working fluid condenses at or within the porous wick lining of at least one other wall to cool the conductive component of the electromagnetic power conversion device. The assembly can be placed in direct contact with the device while the device is operating and/or experiencing time-varying magnetic fields that cause the device to operate.

Abstract: A brushless motor assembly includes a motor body, a circuit board, and a heat sink. The circuit board has a mounting surface and includes a motor control unit and a power switch which are disposed on the mounting surface. The motor control unit is adapted to control an operation of the power switch. The heat sink is disposed between the motor body and the circuit board, wherein the heat sink has a first side portion and a second side portion which are opposite to each other; the first side portion faces the motor body, and the second side portion faces the circuit board and shields the mounting surface of the circuit board. With the aforementioned design, it could effectively protect the electronic components on the circuit board and provide good heat dissipation effect.

Abstract: The present disclosure is directed to a gas turbine engine including a housing circumferentially surrounding an electric machine. The electric machine is supported within the housing. The housing defines a cooling passage proximate to the electric machine. The cooling passage circumferentially surrounds the electric machine and is extended at least partially along a lengthwise direction of the electric machine. The cooling passage provides a flow of fluid therethrough.

Abstract: The present invention relates to a liquid rocket engine using a booster pump driven by an electric motor, and more particularly, to a liquid rocket engine using a booster pump driven by an electric motor in which a booster pump is installed between a propellant tank and a propellant pump so that a requirement for an inlet pressure of the propellant pump may be met even in a state in which an internal pressure of the propellant tank is reduced, resulting in reduced amount of a propellant and reduced weight of the propellant tank, and the electric motor configured to drive the booster pump may be efficiently cooled through an oxidant, a cooling line, and the like.

Abstract: Electrical machine apparatus comprising: a rotor having a longitudinal axis and being arranged to rotate about the longitudinal axis in a first circumferential direction, the rotor defining one or more conduits for receiving fluid therein, the one or more conduits including an inlet and an outlet; and a fluid guide defining a first aperture arranged to direct fluid in a second direction towards the rotor, the second direction having a positive circumferential component in the first circumferential direction.

Abstract: A drive device includes a hollow hub rotatable about hub shafts extending parallel to a center axis, a motor housed in the hub and fixed to the hub shafts, and a speed reducer connected to the motor and the hub. The motor includes a rotor including a motor shaft extending parallel to the hub shafts, a stator disposed outside the rotor in a radial direction, and a motor housing holding the stator therein. The drive device includes thermal grease thermally connecting the hub and the motor housing to each other.

Abstract: A rotor for an electric machine having a rotor shaft, a winding support coupled to the rotor shaft in rotationally fixed manner, and at least one winding arranged on the winding support or a squirrel cage arranged on the winding support, wherein the rotor includes at least one heat pipe running at an angle to the rotor shaft.

Abstract: An insulation system for a vehicle includes a vehicle component that operates at an operating temperature that is higher than an initial temperature, an insulation member thermally coupled to the vehicle component and thermally coupled to an ambient medium, the insulation member including an enclosed chamber, the enclosed chamber including a chamber wall that defines an interior volume, and carbon dioxide positioned within the interior volume of the enclosed chamber, where the chamber wall prevents flow of the carbon dioxide out of the enclosed chamber.

Abstract: A structure for cooling a rotating electrical machine includes: an oil pump, a supply oil passage connected to a discharge port of the oil pump, and a first oil passage that is an oil passage located above a stator of the rotating electrical machine in a vertical direction and that has a supplied portion, a discharge hole, and a discharge portion. The supplied portion is connected to the supply oil passage. The discharge hole is formed on a first side in an axial direction, which is one side in the axial direction of the rotating electrical machine with respect to the supplied portion and is configured to discharge oil toward the stator. The discharge portion is formed on the first side with respect to the discharge hole. A second oil passage is formed inside a rotor shaft to which a rotor of the rotating electrical machine is fixed, and a third oil passage connects the discharge portion of the first oil passage and the second oil passage.

Abstract: A rotor includes: a rotor core; a magnet that is arranged along an axial direction of a central axis of the rotor core; and a heat pipe that is arranged around the central axis of the rotor core, wherein the heat pipe includes: an operation liquid that is provided in an internal space of the heat pipe and that allows heat to move via evaporation and condensation; a heated part that extends so as to be parallel with the central axis, that receives heat from the magnet, and that is heated; and a cooled part that is arranged on one side in a longitudinal direction of the heated part and that is cooled, wherein the cooled part is slanted away from the central axis of the rotor core in a direction from the one side in the longitudinal direction of the heated part toward another side in the longitudinal direction of the heated part.

Abstract: A system for cooling a tower of a wind turbine including at least one cooling fluid inlet arranged in a tower wall for receiving a cooling fluid into the tower, a filtration assembly arranged within the tower, and at least one cooling fluid outlet for directing the filtered cooling fluid within the tower. The filtration assembly including a plurality of flow guiding structures that define a plurality of flow paths for providing a plurality of flow direction changes and/or flow velocity changes to the cooling fluid.

Abstract: An electrical machine has a stator carrying electrical windings which protrude at opposite ends of the stator to form respective, ring-shaped end windings. The electrical machine further has a rotor having a plurality of magnetic field-producing elements for producing a rotor magnetic field which interacts with a stator magnetic field produced by the windings. The electrical machine further has a coolant bath for holding liquid coolant. The electrical machine further has a heat sink in thermal contact with at least one of the end windings, the bath and the heat sink being configured such that the heat sink is immersed in the coolant held in the bath. The heat sink defines one or more fluid pathways configured such that vapour bubbles, formed when coolant in contact with the heat sink boils, escape by rising through the heat sink.

Abstract: A plurality of magnet holes are arranged in a circumferential direction. Void portions are provided at both ends in the circumferential direction of each magnet hole. Flow holes penetrating in the axial direction are formed, between the magnet holes adjacent in the circumferential direction, on an inner side in a radial direction with respect to the magnet holes. Each core has: first groove portions via which the void portions and the flow holes communicate with each other; and second groove portions via which the void portions and the outer circumferences of the cores communicate with each other and which serve as discharge ports. The end plates have: first holes through which the flow holes are exposed and which serve as intake ports; and tab portions which are located on downstream sides in a rotation direction of the first holes and which assist air intake.

Abstract: A hollow shaft forms a closed-off cavity and has, axially, at least an evaporator zone and a condenser zone. At least the condenser zone has a microscale structure. The evaporator zone and the condenser zone can be connected in a thermally conductive manner to the respective surrounding elements thereof.

Abstract: A plurality of magnet holes are arranged in a circumferential direction. Void portions are provided at both ends in the circumferential direction of each magnet hole. Flow holes penetrating in the axial direction are formed, between the magnet holes adjacent in the circumferential direction, on an inner side in a radial direction with respect to the magnet holes. Each core has: first groove portions via which the void portions and the flow holes communicate with each other; and second groove portions via which the void portions and the outer circumferences of the cores communicate with each other and which serve as discharge ports. The end plates have: first holes through which the flow holes are exposed and which serve as intake ports; and tab portions which are located on downstream sides in a rotation direction of the first holes and which assist air intake.

Abstract: An electronic assembly includes a PCB coupled to a mounting surface of a cooling jacket circumferentially mounted on a motor and a thermal management assembly (TMA) thermally connected to the PCB. One or more switching semiconductor devices are disposed on a first surface of the PCB proximate to the motor. The TMA includes the cooling jacket, at least one jacket manifold formed through the cooling jacket, a thermal compensation base layer thermally coupled to the cooling jacket and the one or more switching semiconductor devices, and a cooling manifold disposed through the PCB to form a fluid flow path. The at least one jacket manifold has a fluid inlet and a fluid outlet. Two or more electrically insulated posts, each having a cooling channel, are disposed between the at least one jacket manifold and the cooling manifold and form a fluid circuit between the fluid inlet and the fluid outlet.

Abstract: A cover covering a rectifying device includes a cover end wall portion, a cover outer wall portion, and a cover intermediate portion interposed between the cover end wall portion and the cover outer wall portion. The cover end wall portion includes an inner peripheral side intake portion, and the cover intermediate portion includes an outer peripheral side intake portion. The outer peripheral side intake portion includes an axial direction covering portion existing in a position that is closer to a rotary electric machine main body than the cover end wall portion in an axial direction, and a radial direction covering portion that connects the axial direction covering portion to an outer peripheral portion of the cover end wall portion. Intake holes are provided respectively in the inner peripheral side intake portion, the axial direction covering portion, and the radial direction covering portion.

Abstract: Provided are systems and methods for enclosing an energy source of a material handling vehicle. The systems and methods include an enclosure having a front wall, a rear wall, and an interior compartment, an inlet channel integrally formed with the front wall and in fluid communication with the interior compartment, the air inlet channel defined by an inlet louver and an inlet flange, an outlet channel integrally formed with the rear wall and in fluid communication with the interior compartment, the air outlet channel defined by an outlet louver and an outlet flange, one or more energy source cells positioned within the interior compartment; and a cooling fan in fluid communication with the inlet channel and the interior compartment. The cooling fan operates to draw air through the inlet channel to the interior compartment such that air within the interior compartment is expelled out of the outlet channel.

Abstract: A terminal lead support for use in an integrated drive generator has a body defining an outer end extending to two outer angled surfaces. The outer angled surfaces each extend to curved end portions. The curved end portions connect the outer angled surfaces into inner angled surfaces. The inner angled surfaces each extend into cupped portions formed about a radius. There are six apertures formed within the body, with laterally outer apertures spaced from the outer surface by a greater amount than laterally intermediate apertures. The laterally intermediate apertures are spaced from the outer surface by a greater amount than laterally inner apertures. An integrated drive generator and a method of replacing a terminal lead support are also disclosed.

Abstract: A system and kit for dissipating heat generated by a motor assembly and methods for manufacturing and using same. The motor assembly includes a housing that defines an internal chamber. The internal chamber communicates with an air inlet and an air outlet each being formed in the housing, and can at least partially receive motor inner workings. A pump assembly can be included in the internal chamber for generating an air flow during operation of the motor assembly. The pump assembly can draw air into the internal chamber via the air inlet, generating an air flow within the internal chamber. The air drawn into the internal chamber is applied to the motor inner workings, and the air heated by the motor inner workings is expelled from the internal chamber via the air outlet. Thereby, the air flow advantageously can cool the motor assembly as the air traverses the internal chamber.

Abstract: The invention relates to an assembly (1000) comprising an electrical machine (100) comprising: a stator (9) having windings forming coils (106), a rotor (103), a shaft (101) rotating the rotor (103), and an impeller (1) for cooling the electrical machine, said cooling impeller (1) comprising at least two crowns (2, 21, 22), including a first crown (21) and a second crown (22), each crown (2, 21, 22) comprising blades (3), the blades (3, 31) of the first crown (21) of the cooling impeller (1) being arranged so as to generate the circulation of a cooling fluid flow in a first direction (F1), and the blades (3, 32) of the second crown (22) being arranged so as to generate the circulation of the cooling fluid flow in a second direction (F2), the second direction (F2) opposing the first direction (F1). Said invention is applicable to motor vehicles.

Abstract: The invention relates to an electric motor, particularly an “external rotor motor”, comprised of a stator housing and a rotor housing which is rotatable with respect to the stator housing, wherein the rotor housing has a cooling ring disposed on its side which axially faces the stator housing, wherein the stator housing and the cooling ring are each provided with a plurality of first and second cooling fins (the second cooling fins also being referred to as “cooling ribs”) which face each other axially and are disposed so as to be distributed in the respective circumferential directions, which fins/ribs collaborate in flow technology when the rotor housing is in rotating operation; wherein, in an axial plan view, the first cooling fins extend radially outwardly, and the second cooling fins (the cooling ribs) are V-shaped and point in the circumferential direction, wherein a rotary relative movement of the first and second cooling fins (the cooling fins and the cooling ribs) generates a cooling air stream, at

Abstract: A cooling structure for rotary electric machine is provided. The cooling structure for rotary electric machine comprises a sleeve, a plurality of dividers, a plurality of first walls and a plurality of second walls. The sleeve comprises an annular surface of a first half annular surface and a second half annular surface. The dividers are configured on the annular surface of the sleeve in parallel to provide multiple channels. The first walls are configured on the first half annular surface and between multiple corresponding dividers to provide multiple first division regions. The second walls are configured on the second half annular surface and between multiple corresponding dividers to provide multiple first division regions wherein the first division regions are asymmetric to the second division regions.

Abstract: A brushless motor for a heating, ventilation, and air conditioning (HVAC) system. The brushless motor includes a rotor and a stator. The rotor has an odd number (X) of magnets. The stator defines an odd number (Y) of slots, each including a plurality of fractional-pitch phase windings. The brushless motor has a fundamental order that is (X·Y)/2, which is a non-integer number.

Abstract: A centrifugal compressor is provided. The centrifugal compressor includes a housing and a rotatable assembly mounted for rotation about an axis within the housing. The rotatable assembly includes an impeller forming part of a compressor stage. A first air intake is located at a first end of the apparatus, the first air intake providing an air source for the compressor stage and a second air intake is located at a second end of the apparatus. A thrust plate is attached to the rotatable assembly, the thrust plate including at least one interior channel so that air entering the second air inlet passes through the at least one interior channel.

Abstract: The hyperbaric load control for a power plant is an energy storage device used to regulate the tangent velocity of a gas turbine. Specifically, the hyperbaric load control for a power plant: a) releases previously stored energy in the form of supplemental electrical energy to compensate for an energy deficit created by an operating condition where the electrical energy demanded by the electric load is greater than the energy provided by the gas turbine; and, b) absorbs and stores the excess energy created by an operating condition where the energy transferred to the electric generator from the gas turbine is greater than the electric energy demanded by the electric load. The hyperbaric load control for a power plant comprises an electric motor, a compressor, a high pressure gas tank, a supplemental turbine, a supplemental electric generator, and a control system.

Abstract: A robot includes an arm that includes an arm main body and a motor and rotates about a rotation axis, and an amplifier unit that is provided in the arm and includes a drive circuit which drives the motor, in which at least a portion of the amplifier unit or the motor is positioned on the outside of the arm main body as seen from an axial direction that is parallel to the rotation axis.

Abstract: A motor comprising: a stator including a plurality of coils, and a rotary axis penetrating the stator, the stator includes n (n?2) sets of three-phase circuits, each of which is provided with three phases, each phase of the three-phase circuit has a coil group in which m (m?2) coils are formed with a single conductive wire, and all coil groups of three-phase circuits have the same winding direction, the three-phase circuits include neutral point bus bars connecting each coil terminal on one side of each of the coil group at a neutral point, and three phase bus bars connecting each coil terminal on one side of each of the coil group, the three phase bus bars are arranged in a circumferential direction and form a phase bus bar group, and the phase bus bar group and the neutral point bus bars are alternately arranged in the circumferential direction.

Abstract: A rotor body for a high-speed generator includes a rotor body with interior and exterior surfaces, a coolant inlet and outlet, and a rotor cooling path for actively cooling the rotor body. The coolant inlet and outlet extend between the interior and exterior surfaces. An interior segment of the rotor cooling path fluidly couples the coolant inlet and coolant outlet and is bounded by the rotor body interior surface. An exterior segment of the cooling path is bounded by the rotor body exterior surface and fluidly couples the coolant outlet an environment external to the rotor body.

Abstract: The rotary electrical machine comprises, in front, a pulley (3) secured to a shaft (9) of a rotor (20) passing through the front bearing (1a) of a housing. The bearing includes a base, having a nose (18) for mounting a front ball bearing (7) for rotating the shaft (9), and air inlets (15) defined by arms belonging to an outwardly opening area connecting a peripheral strip of material from the base to the nose (18) in order to shift the nose (18) toward the front in accordance with the central body of a device (100) for adjusting the tension of a belt received in the groove (31) of the pulley (3) and attached onto the housing (1a, 1b). The adjustment device (100) comprises at least one idler (200, 201) for tensioning the belt and a central opening (102) enabling passage of air through the air inlets (15).

Abstract: A fan assembly for a robot vacuum cleaner and a robot vacuum cleaner are provided. The fan assembly includes an electric motor, a stator impeller, a rotor impeller and a fan cover. The stator impeller defines a shaft hole, the electric motor is mounted on a side of the stator impeller, and an output shaft of the electric motor passes through the shaft hole. The fan cover is mounted on another side of the stator impeller, and an end surface of the fan cover away from the stator impeller defines an air inlet. The rotor impeller is mounted to the output shaft of the electric motor and located between the fan cover and the stator impeller.

Abstract: A motor includes a shaft presenting a shaft lead end, a switch assembly including a switch arm shiftable between a first position and a second position, and shield structure. The shaft lead end and the switch assembly are disposed axially outward of an endshield. The shield structure is disposed axially outward of the switch arm to at least substantially restrict direct tool access to the switch arm from an axially outward position relative to the switch arm. The shield structure at least in part defines first and second tool access channels each extending radially inwardly to the shaft lead end, such that the shield structure enables direct tool access to the shaft lead end via the tool access channels but prevents or at least substantially restricts direct tool access to the switch arm via the tool access channels.

Abstract: The application relates to a stator frame of an electrical machine having a first end and a second opposite end. A flange is protruding from the first end and surrounding the first end. The stator frame includes cooling fluid channels and cooling fins on the outer surface of the stator frame extending from the first end to the second end. The stator frame is formed as a single piece. The ends of the outer walls of the cooling fluid channels in the first end are connected to the flange and the cooling fins extend to the junction of the flange and the first end.

Abstract: A centrifugal fan is provided. The centrifugal fan comprises a housing and an impeller. The housing includes an upper cover and a lower cover. The impeller is configured in the housing. The impeller includes a hub, a plurality of blades and an air guiding structure. The hub is pivoted on the lower cover and rotates around a rotation axis. The rotation axis extends in the axial direction. The blades are connected to a peripheral surface of the hub and configured between the upper cover and the lower cover. The air guiding structure is connected to the blades. An angle between the air guiding structure and the rotation axis increases along with a distance in the direction away from the hub.

Abstract: A vehicle AC power generator includes a protection cover disposed at the rear side of a rear bracket included in a housing of the vehicle AC power generator, an attachment bolt that penetrates a through-hole formed in a bottom portion of a protection cover and is fixed to a portion at one axle-direction side of the housing, an output terminal bolt that extends from a rectifier, which rectifies AC electric power, toward the outside of one axle-direction side of the protection cover, and an insert coated conductor that is supported by the output terminal bolt and the attachment bolt and is provided at the rear surface of the protection cover.

Abstract: This invention is concerning a rectifying device in an AC power generator, the rectifying device including a broken-ring-shaped heat sink supporting a rectifying element and cooling the rectifying element and a circuit board holding the heat sink. The circuit board includes an engaging projection. The heat sink includes a hole, into which the engaging projection is fit, and a gravity center adjustment portion.

Abstract: Provided is a rotating machine capable of obtaining a uniform temperature distribution by improving a cooling air flow to a heat generation portion. The rotating machine has a salient pole rotor (11) and a stator (12). The salient pole rotor (11) has a rotation shaft (15), a disk-shaped spoke (22), a cylindrical rib (23), and a plurality of salient poles (25) arranged in a radial shape on an outer circumferential surface of the rib (23), each of the salient poles (25) being formed along an axial direction of the rotation shaft (15). The disk-shaped spoke (22) is provided to an anti-feeding side end of the cooling air of the salient pole rotor (11). The cylindrical rib (23) is provided with through-holes (231) extending from an inner space of the cylindrical rib (23) through gaps between a plurality of salient poles (25).

Abstract: The invention relates to an electric motor (100) comprising a stator (2) and a rotor (3), the rotor (3) being arranged around the stator (2), an element (9) for supporting said rotor (3) and said stator (2), a motor support (5) through which a stream of fluid flows, a radiator (8) and an electronic body (7), said radiator (8) being inserted between said motor (100) support (5) and said electronic body (7), characterised in that the element (9) for supporting the rotor (3) and the stator (2), and the radiator (8), form the same so-called bifunctional part (30).

Abstract: A motor including a stator including a plurality of stator slots having stator coils disposed therein, and a rotor rotatable within the stator about a central axis. The stator includes a plurality of stator channel formed adjacent to the stator slots and extending in the axial direction of the central axis.