Abstract: Check valve assembly for a tensioner with a U-shaped retainer defining a cavity and having at least one retainer opening and axially extending flanges; a moveable member received within the cavity; a check valve spring received within the cavity and between the moveable member and the retainer; a valve seat having axially extending flanges and defining a seat opening nesting within the cavity of the retainer, and a check valve vent washer. The check valve vent washer has an outer circumference with a plurality of spaced apart legs and openings; and an inner circumference in fluid communication with the outer circumference through the openings, the inner circumference has a concentric interior well connecting the plurality of openings to a vent reservoir, a central ring defining a central hole in communication with the internal reservoir, the central ring comprising a vent groove connecting the vent reservoir to the central hole.

Abstract: A motor housing 20 for an axial flux motor 10. The motor housing 20 includes at least one housing portion 22, 24 which is of at least partially double-walled configuration, in order to configure an internal cooling channel 40 in the housing portion 22, 24. The cooling channel 40 extends in a substantially annular manner in the circumferential direction 6 between an inlet 41a and an outlet 41b, in order, during operation, to produce a first cooling flow 82 which flows substantially in the circumferential direction 6 through the cooling channel 40. Furthermore, the cooling channel 40 includes a plurality of transverse ribs 50.

Abstract: A system for a direct current (DC)-DC converter includes a transformer, a bridge driver connected to a primary side of the transformer, and a bridge rectifier connected to a secondary side of the transformer, wherein one or more switches in the bridge driver are operable to configure the bridge driver into each of a half-bridge driver configuration and a full-bridge driver configuration, and to transition between the half-bridge driver configuration and the full-bridge driver configuration while the DC-DC converter is outputting power.

Abstract: A recirculation blower (17) for a return arrangement for a gas, including hydrogen gas in a fuel-cell system, includes a blower (23) and a turbine (31). The blower (23) is configured to be driven by a turbine and to transport a return stream. The turbine (31) is configured to drive the blower (23) and to be driven by a hydrogen stream.

Abstract: A system includes: a bidirectional alternating current (AC) to direct current (DC) converter (AC-DC converter) connectable to a line voltage and a battery, the AC-DC converter including: one or more leaves connectable to the line voltage and the battery, the one or more leaves configured to receive DC voltage from the battery and generate AC voltage for the line voltage, and a neutral leaf connectable to the line voltage and the battery, the neutral leaf configured to provide a return path for the generated AC voltage from the line voltage to the AC-DC converter; and one or more controllers configured to control an operation of the one or more leaves and the neutral leaf to control the AC voltage.

Abstract: A stator for an electric machine comprises a stator core and a winding positioned on the stator core. The stator core includes a plurality of teeth defining a plurality of slots. The winding is comprised of a plurality of segmented conductors connected together to provide a plurality of parallel paths per phase for the winding, each conductor comprising (i) an end loop provided on a crown end of the stator core, (ii) two legs extending through the slots, and (iii) two leg ends extending out of the slots on a connection end of the stator core, each leg end having a twist portion. The legs of the conductors are arranged in layers in the slots, wherein the layers include a total number of layers (L), L being greater than five and L/2 being an odd whole number. Each leg end extending from each of the layers has a common twist associated with the layer from which said leg extends.

Abstract: A guide blade (200) for a guide device (100), including a guide blade body (201) with a blade top side (210), a blade underside (220), a blade leading edge (230) and a blade trailing edge (240). The guide blade (200) also comprises a profile centerline (250) which is defined in a profile of the guide blade body (201) by the blade top side (210) and the blade underside (220) and runs between them from the blade leading edge (230) to the blade trailing edge (240), the profile centerline (250) having a turning point (IP). The blade leading edge (230) and the blade trailing edge (240) are connected by a profile chord (260). The guide blade (200) has a guide blade axis of rotation (PA). The axis of rotation (PA), starting from the blade leading edge (230) in the direction of the blade trailing edge (240), lies along the profile chord (260) between the blade leading edge (230) and the turning point (IP).

Abstract: A drive module for a vehicle including an electric machine, an inverter, a gearing assembly, and a cooling system. A first housing member thermally coupled with the inverter has a first set of heat exchange surfaces and a second housing member thermally coupled with the electric machine has a second set of heat exchange surfaces. The first and second sets of heat exchange surfaces each project into an interior volume cooled by an externally supplied liquid coolant which thereby defines a heat exchanger. A lower oil sump for collecting oil used to cool the electric machine may also include heat exchange surfaces projecting into the same heat exchanger. The gearbox may include an elevated oil sump which is supplied by the same oil pump circulating oil on the electric machine wherein the elevated oil sump gravity feeds oil onto selected surfaces within the gearbox.

Abstract: A system comprises an inverter configured to convert DC power from a battery to AC power to drive a motor, wherein the inverter includes: a galvanic isolator separating a high voltage area from a low voltage area; a low voltage phase controller in the low voltage area, the low voltage phase controller configured to receive a pulse width modulation (PWM) signal from an inverter controller and adjust the received PWM signal based on a feedback signal; and a high voltage phase controller in the high voltage area, the high voltage phase controller configured to receive the adjusted PWM signal from the low voltage phase controller, provide the adjusted PWM signal to a phase switch, and provide the feedback signal based on an on-time measurement of the phase switch.

Abstract: A torsion spring for an oil pump chain tensioner for use in an engine. The torsion spring has: a second end; a leg connected to the second end through a hook bend; an outer coil connected to the leg having an outer coil outer circumference and an outer coil inner circumference; a first inner coil connected to the outer coil, the first inner coil having a first inner coil outer circumference and a first inner coil inner circumference, the outer coil inner circumference being adjacent to the first inner coil outer circumference; and a second inner c-shaped coil connected to the first inner coil through a bend back loop, the second inner coil having a second inner coil outer circumference and a second inner coil inner coil circumference and terminating in a first end, where the second inner coil outer circumference and the first coil inner circumference define a gap.

Abstract: Disclosed is a flow heater with a housing having an inlet opening and an outlet opening, a heating plate delimiting a flow path for fluid to be heated to flow from the inlet opening to the outlet opening, and a flow guidance plate that is arranged inside the housing, the flow guidance plate extending along the heating plate at a distance from it thereby delimiting the flow path.

Abstract: A cylindrical workpiece with a helical axial groove allowing for centerless grinding which has an angular overlap around the outer circumference on the body of the workpiece. The angular overlap ensures continuous tangential contact with the grinding wheels as the workpiece is rotated.

Abstract: Disclosed is a compressor comprising a rotating assembly, which comprises a compressor wheel and a rotor of an electric motor, a stator of the electric motor, a bearing for the rotating assembly, a support that supports the bearing, and a cooling channel for purposes of cooling the electric motor. In accordance with this disclosure, a section of the cooling channel is arranged in the support.

Abstract: A method and arrangement is disclosed herein for making a stator with 3D printed end turns. The stator includes a stator lamination stack with semi-closed slots. Straight I-pin wire segments are housed in the slots of the stator lam stack and form the in-slot segments of a stator winding arrangement. The end turns of the winding arrangement are provided by a conductive material that is 3D printed material at both axial ends of the straight I-pins. The end turns result in a winding arrangement with diamond coils that are inter-locked. The 3D printing of the end turns makes the winding arrangement possible, as the winding arrangement is configured such that it cannot be inserted into the lamination stack in a radial direction (i.e., via any slot openings at the inner diameter or outer diameter).

Abstract: A clutch assembly includes a first shaft extending along and rotatable about a first shaft axis, and a second shaft extending along and rotatable about a second shaft axis that is parallel with the first shaft axis. The clutch assembly also includes a first friction component coupled to and rotatable with the first shaft, and a second friction component coupled to and rotatable with the second shaft. The clutch assembly additionally includes a band clutch assembly. The band clutch assembly includes a retaining band disposed about the first and second friction components, and a retaining component coupled to the retaining band. The retaining band is engageable with the first and second friction components, and the retaining band and the retaining component are rotatable with the first and second shafts during rotation of the first and second shafts.

Abstract: The present disclosure discloses an electric motor stator and an electric motor. The electric motor stator comprises: a stator core, the stator core being provided with a plurality of stator core slots, the plurality of stator core slots being formed on a radial inner surface of the stator core and being separated by a preset slot distance along a circumferential direction of the stator core; a stator winding, the stator winding being mounted on the stator core, the stator winding being provided with Q pole pair coils, wherein Q/a number of slots per pole per phase=P, P being an integer; wherein the stator winding being a three-phase winding, the number of slots per pole per phase being 3; the stator winding comprising: a first coil set and a third coil set successively sleeved from outside to inside.

Abstract: An electrical system configured to control an electrically-excited electric motor, including: an inverter configured to supply alternating current (AC) electrical power to the electrically-excited electric motor; the electrically-excited electric motor, including: a rotor having a rotor winding; and a stator having a stator winding; the stator winding is electrically connected to the inverter and the rotor winding is electrically connected to the inverter such that the stator winding receives an electrical current from the inverter and supplies a direct current (DC) component to the rotor.

Abstract: A compressor device of a supercharging device for an internal combustion engine (1), having an inlet channel (21) with a side wall (23), an exhaust-gas inlet (25) in the side wall (23), at which exhaust-gas inlet an exhaust-gas recirculation channel (27) opens into the inlet channel (21), and a flow barrier (29) in the inlet channel (21), which flow barrier at least partially spans the exhaust-gas inlet (25), is spaced apart from the exhaust-gas inlet (25) and is suitable for diverting exhaust gas which flows from the exhaust-gas inlet (25) into the inlet channel (21) at an angle with respect to an axial direction of the inlet channel (21) or with respect to the axis of a compressor (3).

Abstract: A rotating machine includes a machine housing defining a housing interior, a shaft disposed in the housing interior, with the shaft having a length and an axis extending along the length. The shaft is rotatable about the axis. The rotating machine also includes an impeller wheel disposed in the housing interior and coupled to and rotatable by the shaft, with the impeller wheel having an angular position with respect to the axis. The rotating machine further includes a backplate coupled to the machine housing and having a first side facing the impeller wheel, at least one target element coupled to and rotatable with the impeller wheel, a circuit board coupled to the first side of the backplate and facing the impeller wheel, and at least one sensor disposed on the circuit board for detecting the at least one target element to determine the angular position of the impeller wheel.

Abstract: An electric machine includes a stator core and a multi-phase winding. The stator core includes a plurality of teeth defining a number of slots in the stator core. The multi-phase winding is positioned on the stator core and defines a number of poles, a plurality of parallel paths per phase, and a number of pole-turns for each parallel path. The number of pole-turns for each parallel path divided by the number of poles is a mixed number.