A gas turbine engine including a low speed spool including a low pressure compressor, a low speed output gear disposed on the low speed spool, a high speed spool including a high pressure compressor, a high speed output gear disposed on the high speed spool, a first tower shaft engaged to the low speed spool at the low speed output gear, a second tower shaft engaged to the high speed spool at the high speed output gear, and a superposition gearbox. The gas turbine engine further including a ring gear shaft coupled to drive the ring gear, a ring gear shaft drive gear. A low speed spool drive train gear ratio is between 0.5 to 2.0, the low speed spool drive train gear ratio being measured from the low speed output gear to the ring gear shaft drive gear.

A vehicle drive-force transmitting apparatus including: a drive gear; a fluid pump that is to driven by rotation of the drive gear; and a casing that stores therein the drive gear and the fluid pump. The fluid pump includes: a pump body; a pump cover; a rotor; a driven gear that meshes with the drive gear; and a pump shaft on which the rotor and the driven gear are mounted. The pump shaft is rotatably supported at its supported portion by the pump body and/or the pump cover. The driven gear is mounted on a free end portion of the pump shaft. An outer peripheral portion of the pump body or an outer peripheral portion of the pump cover is supported by the casing, such that the other portion of the pump body and the other portion of the pump cover are spaced apart from the casing.

A rotary actuator is used in a shift-by-wire system for a vehicle. The rotary actuator includes a motor, a controller, a housing, and a biasing member. The controller controls the motor. The housing supports a rotor assembly of the motor and holds the controller. The biasing member biases the rotor assembly in an axial direction to eliminate a thrust movement gap between the rotor assembly and the housing.

Adapter plate (1) for connecting a gearbox to a motor, having a plate (3) having a continuous through opening (11) for introducing an output shaft of a motor capable of being assembled on the plate (3); a clearance (9) which in terms of the axis of the through opening (11) in the plate (3) opens in a radially outward manner and is configured as a pocket hole opening, and a sensor mechanism installation which is completely received in the clearance (9) and comprises a sensor, a memory, and an evaluation unit, wherein the sensor and the memory are connected to the evaluation unit.

A case body that is integrally formed so as to form a first housing chamber including a rotary electric machine housing chamber that houses a rotary electric machine and a gear housing chamber that houses a plurality of gears and second housing chamber that houses an inverter device includes a peripheral wall portion that surrounds an outer side of rotary electric machine and gears in radial direction, partition wall that partitions first and second housing chambers, and a partition member disposed between the rotary electric machine housing chamber and the gear housing chamber. The partition wall is formed on both sides in an axial direction across partition member so as to extend in axial direction from a position where partition wall overlaps rotary electric machine on outer side in radial direction to a position where partition wall overlaps at least one of the gears on outer side in radial direction.

The invention relates to improvements in the technical sector of actuators. To this end, the actuator, inter alia, is proposed, the actuator housing of which has at least one stage, on which at least one functional surface is formed with at least one access to the actuator housing.

A differential assembly including a differential housing, a gear assembly, a shaft, and a ring gear. The differential housing generally includes a peripheral wall, first and second end walls connected to the peripheral wall and spaced apart along a rotational axis so that the peripheral wall and the first and second end walls, in combination, define an internal cavity, a transitional region defined in the differential housing where the second end wall meets the peripheral wall, and a first window formed through the peripheral wall, the transitional region, and/or the second end wall and into the internal cavity, the first window including a central portion and first and second ear portions adjoining the central portion and extending outwardly therefrom. The first window defines a shape when projected perpendicularly onto a first plane including both the rotational axis and a pinion axis, said pinion axis extending perpendicular to the rotational axis.

A drive unit for a vehicle, having an electric motor and a transmission unit, wherein the electric motor is connected to the transmission unit via a drive shaft and at least one first output shaft can be driven to rotate by the transmission unit, wherein the drive unit also has at least one brake unit. The rotation of the at least one output shaft can be delayed by the brake unit, wherein the drive unit has at least one of the following: a lubricant circuit through which both the transmission unit and at least one brake unit can be supplied with lubricant, and a cooling circuit through which both (i) at least one of the electric motor and a power electronics system assigned to the electric motor; and (ii) at least one brake assembly can be supplied with coolant.

A vehicle drive apparatus includes: a rotary electric machine disposed on a first axis; a differential gear mechanism disposed on a second axis; an output member disposed on the second axis; an inverter device; and a case. The case is a single-piece case internally including: a first housing chamber housing the rotary electric machine; and a second housing chamber housing the inverter device and divided from the first housing chamber with a partition. At least a specified portion of the output member is housed in the first housing chamber. A location of the specified portion in an axial direction overlaps with the rotary electric machine. The partition is provided between the specified portion and the inverter device.

A cooling device includes a body formed into an elongate strip having upper and lower surfaces. The elongate strip is configured to contact the housing along the lower surface for conductive heat transfer from the housing to the body. Each of a plurality of cooling fins is attached to the strip and extends from one end attached to the upper surface of the strip another, free end. The device includes a first tab disposed at one end of the elongate strip, and a second tab disposed at another end of the elongate strip. The elongate strip is made from a compliant material such that the elongate strip conforms to a shape of the housing when the first and second tabs are connected to the housing and a majority of the lower surface contacts the housing. The fins are arranged to convectively dissipate heat from the body.