A propulsion system for an electric vehicle including an internal combustion engine and an electric machine disposed in a transmission housing that is attached to the engine. An engine vibration damper is disposed between the engine and the electric machine. A torque converter connects the engine to the turbine shaft and is disposed in the housing radially inboard of the windings of the electric machine. A turbine shaft connected to the electric machine is configured to transfer torque from the engine and the electric machine through the turbine shaft to a planetary gear set connected to the turbine shaft. A disconnect clutch is operatively connected between the engine and the electric machine and is disposed in the housing radially inboard the windings of the electric machine and is connected to the turbine shaft.

A torque converter assembly that has a turbine assembly, a pump assembly, and a clutch assembly that selectively rotationally couples the turbine assembly to the pump assembly. The clutch assembly also has at least one clutch disk and a backing plate assembly defining a backing plate surface and formed by a first plate and a second plate coupled to one another. The first plate and the second plate are coupled to each other at a first radius and a second radius, the second radius being substantially adjacent to the backing plate surface.

A friction engaging device includes a plurality of first plates slidably fitted to an outer periphery side cylindrical member, a plurality of second plates slidably fitted to an inner periphery side cylindrical member, a piston pushing the first plates and the second plates by moving in an axial direction, a biasing member applying a bias force to the piston in the axial direction, and a plate member supporting a first end of the biasing member. The plate member slides in the axial direction in a state where the plate member is fitted to either one of the outer periphery side cylindrical member and the inner periphery side cylindrical member.

A damper assembly for a torque convert includes: a first cover plate; a second cover plate; a first spring; and second spring; an intermediate flange; and a hub flange. The first cover plate is arranged to receive a torque. The second cover plate is non-rotatably connected to the first cover plate. The first cover plate and the second cover plate define a spring window. The first spring and the second spring are each disposed in the spring window and circumferentially spaced from each other. The hub flange is disposed axially between the first cover plate and the second cover plate. The hub flange is directly engaged with the first and second springs and includes a first travel stop. The intermediate flange is disposed axially between the hub flange and the first cover plate. The intermediate flange is directly engaged with the first and second springs and includes a second travel stop having a tab extending axially towards the first cover plate. The tab is engageable with the first travel stop.

A stator assembly for a torque converter includes a body and a washer. The body is rotatable about an axis and has a cavity defined by an axial wall radially spaced from the axis and a radial wall extending radially inward from the axial wall. The washer is disposed in the cavity and is configured to be compressed against the radial wall. The washer includes a base and a plurality of circumferentially spaced from each other and extending radially outward from the base. The plurality of tabs are configured to non-rotatably connect to the axial wall.

A transmission assembly and a method of assembling a transmission assembly that is located between the engine block and the transmission gearbox is provided. The assembly includes a hub having a fluid path for a clutch and a hub flange, a torque converter cover formed with extruded studs in an area adapted to be connected to the hub flange, the extruded studs including a circumferential outer surface having a plurality of serrations, holes in the hub flange in locations corresponding to locations of the extruded studs, with a respective inside diameter of each of the holes being smaller than an outside diameter of the studs; and the hub being connected to the torque converter cover with the studs engaging in the holes in the hub flange with an interference fit.

A lock-up device of a torque converter consisting of a lock-up clutch, a lock-up piston, an input side clutch supporter, etc., and a lock-up device with excellent assemblability while simultaneously reducing mutual rotation between a lock-up piston and an input side clutch supporter, which increases a response of the lock-up piston, is provided.

The lock-up device of a torque converter includes an input side clutch supporter fixed to a front cover for transmitting a power from a drive side; a plurality of clutch plates supported by the input side clutch supporter; a lock-up piston to pressurize the clutch plate to make the clutch connected; a piston guide supporting the end portion of the lock-up piston; a spring pack fixed to the lock-up piston, installed between the lock-up piston and the input side clutch supporter and including an elastic body that presses the lock-up piston in the direction of releasing the clutch; and an mutual rotation prevention mechanism that prevents a mutual rotation between the lock-up piston and the input side clutch supporter.

A hydrodynamic torque converter (1) with a pump wheel (3) and with a turbine wheel (4), and with a torsion damper (8) and with an intermediate space (12) located between the turbine wheel (4) and the torsion damper (8), and with a torus formed by the pump wheel (3) and the turbine wheel (4) for hydraulic fluid. A flow-guiding wall (14) is provided, which deflects a radially outward flow of hydraulic fluid coming from the torus, back radially inward to the intermediate space (12).

A hydrodynamic torque converter (1) with a bridging clutch (6) and with a torsion damper (8), and with a piston (7) and with an intermediate space (9) between the piston (7) and the torsion damper (8). The piston (7) serves to actuate the bridging clutch (6). The torsion damper has a torsion damper wall (85) via which hydraulic fluid, flowing into the intermediate space (9), is guided toward the bridging clutch (6).

A clutch arrangement has a first pressure chamber for exerting load clutch piston and a second pressure chamber for accommodating clutch elements and for feeding fluid for cooling the clutch elements. A first clutch element is connected to a first clutch element carrier and a second clutch element is connected to a second clutch element carrier. The first clutch element carrier accommodates the clutch piston and the second clutch element carrier exerts load on a torsional vibration damper and radially encloses the clutch unit over part of its axial extent length. The clutch piston is equipped with a flow passage for flow connection between the two pressure chambers, and the first clutch element carrier has a flow passage which interacts with a flow-guiding element provided on the second clutch element carrier, that is oriented relative to the flow passage of the first clutch element carrier at an angle.