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 torque converter includes a pump shell having pump blades; a turbine shell having a support portion supporting turbine blades, wherein the turbine blades are driven by the pump blades via a fluid to rotate about a rotational axis. The turbine shell further has a flange portion extending outward at the radially outside of the support portion and is integrally formed with the support portion. The torque converter further comprises a vibration damping device, the mass of which is mounted on the flange portion and configured to be movable relative to the flange portion and apply a torque to the turbine shell, thereby damping the torque vibration on the turbine shell. In addition, the invention also discloses a vehicle comprising the torque converter.

The present invention discloses a clutch with torque converter clearance that prevents internal interference with the components of the torsional vibration filtering device, and also allows an easy and quick evaluation of the clutch clearance around 360° of the piston when the clutch is engaged. To achieve the above, a normally coupled clutch with torque converter clearance comprising a piston cap; at least one friction disc; and a piston is implemented; the piston in turn comprises a pressure plate and a cover core, where the cover core comprises a mechanical stop or retainer as main element.

A torque converter includes a torque converter body and a rotary electrical machine. The torque converter body includes a cover, an impeller, a turbine, and a first stator. The rotary electrical machine includes a rotor and a second stator. The rotary electrical machine is disposed inside the torque converter body.

A torque converter having a shell formed by a front cover assembly and a rear cover. The front cover assembly further includes a front cover and a front boss, with the front boss being fixedly mounted to the front cover. The torque converter further including an impeller, a turbine located within the shell, a lock-up clutch and a piston. The piston being axially moveable relative to the front cover assembly along a central axis of the torque converter. A leaf spring, positioned between the piston and the front cover assembly, connects the piston to the front cover assembly.

An electrified drivetrain system that improves drivability is described. It includes a propulsion system having a rotary electric machine including a rotatable shaft, a torque converter including a fluidic stator, a pump, a turbine and a normally-closed torque converter clutch; a selectable one-way clutch coupled to the fluidic stator; and an output member. The rotatable shaft is coupled to the pump of the torque converter, and the turbine of the torque converter is coupled to the output member.

A torque converter includes a front cover arranged to receive a torque and an impeller having an impeller shell non-rotatably connected to the front cover. A turbine is fluidly coupled to the impeller and includes a turbine shell. A lock-up clutch is provided that includes a piston configured to axially displace to engage and disengage the lock-up clutch; a first clutch plate and a second clutch plate connected to each other, the first and second clutch plates being disposed between the piston and front cover; and a flexible clutch plate disposed axially between the first and the second clutch plates and connected to the piston.

A hydrodynamic torque converter is provided with a converter housing and a converter torus with a pump impeller, a turbine wheel which is driven hydrodynamically by the pump impeller by a converter fluid. In order to bridge the hydrodynamic drive, a converter lock-up clutch which is connected between the pump impeller and the turbine wheel by pressure loading of the converter fluid is arranged radially between an outer circumference of the converter housing and the converter torus. In order to provide the converter lock-up clutch with an increased transmission capacity, the turbine wheel is assigned at least one friction disc which can be prestressed axially between a pressure-loaded annular piston, which is hooked in an axially movable manner into the converter housing, and a mating friction surface of a converter housing section radially outside the converter torus.

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 relative rotation between the lock-up piston and the input side clutch supporter.

A vehicle driveline component includes a torque converter including an actuator and a clutch. The actuator includes an actuator piston slidable within an actuator chamber and dividing the actuator chamber into loosening and tightening chambers. The actuator piston moves the stator blades between a plurality of pitch positions. The clutch selectively couples the turbine to the impeller. The clutch includes a spring and clutch piston. The clutch piston at least partially defines an apply chamber and a release chamber. The apply chamber is in fluid communication with the tightening chamber via a hydrodynamic chamber. The release chamber is in fluid communication with the loosening chamber. The clutch piston is movable between an engaged position which inhibits relative rotation between the housing and the turbine and a disengaged position permitting relative rotation. The clutch spring is supported by the turbine hub and biases the clutch piston toward the disengaged position.