A pipe connection portion of a damper case has an opening opened toward the rear side. In an end surface around the opening in the pipe connection portion, a recess is formed in an inner diameter portion. The recess is recessed to the front side as compared to another portion of the end surface. In an end surface of a pipe member, a groove portion is formed in an outer diameter portion. The groove portion is recessed to the rear side as compared to another portion of the end surface. A first seal member and a second seal member are interposed between the end surface of the damper case and the end surface of the pipe member, and the damper case and the pipe member are sealed by the seal members in a liquid-tight manner.

A pipe connection portion of a damper case has an opening opened toward the rear side. In an end surface around the opening in the pipe connection portion, a recess is formed in an inner diameter portion. The recess is recessed to the front side as compared to another portion of the end surface. In an end surface of a pipe member, a groove portion is formed in an outer diameter portion. The groove portion is recessed to the rear side as compared to another portion of the end surface. A first seal member and a second seal member are interposed between the end surface of the damper case and the end surface of the pipe member, and the damper case and the pipe member are sealed by the seal members in a liquid-tight manner.

A motor vehicle, including a drivable front axle, a drivable rear axle, an internal combustion engine, an automatic transmission coupled thereto, and a switchable torque distribution unit which is coupled to the automatic transmission and enables all-wheel drive, which torque distribution unit is coupled to the front axle and the rear axle. A torque generated by the internal combustion engine can be directed from the torque distribution unit either to the front or rear axle or distributed to both axles. An electric machine is provided which is coupled to the rear axle. A torque generated by the electric machine which is provided to the rear axle is provided to the torque distribution unit via the coupling and can also be provided from this torque distribution unit to the front axle.

A motor vehicle, including a drivable front axle, a drivable rear axle, an internal combustion engine, an automatic transmission coupled thereto, and a switchable torque distribution unit which is coupled to the automatic transmission and enables all-wheel drive, which torque distribution unit is coupled to the front axle and the rear axle. A torque generated by the internal combustion engine can be directed from the torque distribution unit either to the front or rear axle or distributed to both axles. An electric machine is provided which is coupled to the rear axle. A torque generated by the electric machine which is provided to the rear axle is provided to the torque distribution unit via the coupling and can also be provided from this torque distribution unit to the front axle.

A hybrid electric vehicle includes: an internal combustion engine; a rotary electric machine; an electric storage device; and a power control unit that converts electric power between the rotary electric machine and the electric storage device, and controls the rotary electric machine, the hybrid electric vehicle being capable of traveling by rotating a driving wheel by using power of at least one of the internal combustion engine and the rotary electric machine. Further, the power control unit is provided below the rotary electric machine, and a heat generation source that has higher temperature than the power control unit, a heat transfer inhibition unit that inhibits heat transfer from the heat generation source to the power control unit, and the power control unit are disposed in this order from one side to another side in a vehicle width direction.

A modular hybrid transmission that provides for an improved support of the rotor as well as an improved cooling layout for the stator. The modular hybrid transmission has a rotating assembly and a housing assembly. The rotating assembly includes a rotor assembly, a rotor carrier hub that supports the rotor, and an input shaft. The rotor carrier is rotationally fixed on the input shaft. The housing assembly houses the rotating assembly, and includes a housing having an outer wall, a stator assembly connected to the outer wall, and a radially extending stationary wall that extends from the outer wall toward the output shaft. The stationary wall includes an axially extending wall portion that extends parallel to an outer surface of the input shaft, and a radial ball bearing supports the input shaft on this axially extending wall portion. Two stator cooling paths are channeled in the housing.

A modular hybrid transmission that provides for an improved support of the rotor as well as an improved cooling layout for the stator. The modular hybrid transmission has a rotating assembly and a housing assembly. The rotating assembly includes a rotor assembly, a rotor carrier hub that supports the rotor, and an input shaft. The rotor carrier is rotationally fixed on the input shaft. The housing assembly houses the rotating assembly, and includes a housing having an outer wall, a stator assembly connected to the outer wall, and a radially extending stationary wall that extends from the outer wall toward the output shaft. The stationary wall includes an axially extending wall portion that extends parallel to an outer surface of the input shaft, and a radial ball bearing supports the input shaft on this axially extending wall portion. Two stator cooling paths are channeled in the housing.

A drive system includes a motor, an engine, a torque converter and an output shaft member. The torque converter is a device to which a torque outputted from the motor is inputted. The output shaft member outputs the torque inputted thereto from the torque converter or a torque inputted thereto from the engine. The engine outputs the torque to the output shaft member without through the torque converter.

A drive system includes a motor, an engine, a torque converter and an output shaft member. The torque converter is a device to which a torque outputted from the motor is inputted. The output shaft member outputs the torque inputted thereto from the torque converter or a torque inputted thereto from the engine. The engine outputs the torque to the output shaft member without through the torque converter.

A connection of an oil pump (1) to a hybrid transmission of a motor vehicle includes an electric machine (3) arranged axially parallel to a transmission input shaft (2). A drive of the oil pump (1) is connected in the operative connection between the transmission input shaft (2) and the electric machine (3) via an intermediate gear (5) of a spur gear drive or via a chain drive (10).