A launch device having a front cover connectable to the output of a prime mover, an output hub connectable to the input of the transmission, an impeller driven in rotation with the front cover and a turbine fluidly coupled in rotation with the impeller. A damper includes an output member connected to and rotatable with the output hub. A lock-out clutch, when engaged, rotationally locks the damper with the front cover and includes a clutch piston which is axially and rotationally moveable relative to the output hub. A mechanical clutch piston positioner includes first and second interfaces individually associated with either the clutch piston or one of the output member or output hub. The first interface is axially and rotationally moveable relative to the second interface. Upon the first interface overrunning tire second interface, mechanical engagement of the interfaces axially positions tire clutch piston toward the front cover.

The present invention relates to a torque converter that may reduce production cost by a simple structure compared to the conventional art, reduce the overall size of the torque converter by minimizing an installation space of an anti-resonance damper, and improve damping performance.

A torque converter assembly includes a torsional vibration damper and a clutch operatively coupled to the torsional vibration damper. The clutch includes a friction disc having a tab coupled to a distal portion of the friction disc and extending axially away from the distal portion. The clutch also includes a piston configured to urge the friction disc into engagement with a torque converter cover to transfer torque from the torque converter cover to the torsional vibration damper. The tab includes a first segment directly contacting a spring member or a spring seat of the torsional vibration damper and a second segment, between the first segment and the distal portion of the friction disc, configured to slide against a guide surface of the torsional vibration damper to provide radial guidance to the friction disc.

A torque converter includes a front cover configured to receive a torque. The torque converter further includes an impeller having an impeller shell non-rotatably connected to the front cover. The torque converter further includes a turbine in fluid communication with the impeller and including a turbine shell. The torque converter further includes a stator disposed axially between the impeller and the turbine. The torque converter further includes a one-way clutch disposed within the stator. The torque converter further includes a side plate axially disposed between the one-way clutch and the turbine shell. The side plate is configured to retain the one-way clutch within the stator. The turbine shell includes a post configured to axially constrain the side plate.

A torque converter includes a front cover arranged to receive a torque. The torque converter further includes a lock-up clutch engaged with the front cover and including a clutch plate. The torque converter further includes a damper assembly engageable with the lock-up clutch. The damper assembly includes a cover plate defining a spring retainer extending about an axis. The damper assembly further includes a spring disposed in the spring retainer. The damper assembly further includes a spring support plate fixed to the cover plate. The spring support plate includes inner tabs and outer tabs disposed radially outside of the inner tabs. The outer tabs are configured to radially constrain the spring in the spring retainer. The inner tabs are configured to position the clutch plate relative to the axis.

A torque converter comprises a cover arranged to receive torque, an impeller including an impeller shell fixed to the cover, and a turbine fluidly coupled to the impeller. A lock-up clutch is provided that includes a dam plate non-rotatably connected to the cover, and a piston plate disposed, at least partially, between the cover and the dam plate. A fluid diversion plate is disposed between the dam plate and the turbine, wherein the dam plate is connected to the piston plate on a first axial side and connected to the fluid diversion plate on a second axial side, opposite the first axial side.

In a power transmission device, a dynamic damper is provided in a power transmission path having at least one damper disposed therein, and has an inertial rotating body that can rotate relative to a transmission rotating member forming part of the power transmission path, and a dynamic damper spring that can provide connection between the transmission rotating member and the inertial rotating body. A preset load is applied to the dynamic damper spring in a non-transmitting state of the power transmission path. The dynamic damper spring is supported on either one of the transmission rotating member and the inertial rotating body so as to apply the preset load to the dynamic damper spring in the non-transmitting state, and a gap is set in a rotational direction in the non-transmitting state between the dynamic damper spring and an other one of the transmission rotating member and the inertial rotating body.

A launch device for rotationally coupling a prime mover to a transmission. The launch device includes a front and rear cover cooperating to define a chamber into which a plurality of blades extend forming an impeller. Located in the chamber and fluidically coupled to and rotationally driven by the impeller is a turbine. One or more roller bearings support the turbine and the rear cover for rotation about a central axis. The bearings include inner and outer members supporting the roller elements. A retention feature is further provided to aid in installation and retention of a support component with the bearing. The retention feature allows relative movement in an axial direction of assembly until the bearing and support components are fully engaged, but inhibits relative movement of the bearing and support components in an opposing axial direction.

A launch device having a front cover connectable to the output of a prime mover, an output hub connectable to the input of the transmission, an impeller driven in rotation with the front cover and a turbine fluidly coupled in rotation with the impeller. A damper includes an output member connected to and rotatable with the output hub. A lock-out clutch, when engaged, rotationally locks the damper with the front cover and includes a clutch piston which is axially and rotationally moveable relative to the output hub. A mechanical clutch piston positioner includes first and second interfaces individually associated with either the clutch piston or one of the output member or output hub. The first interface is axially and rotationally moveable relative to the second interface. Upon the first interface overrunning tire second interface, mechanical engagement of the interfaces axially positions tire clutch piston toward the front cover.

A hybrid module configured for arrangement in a torque path upstream from a transmission and downstream from an internal combustion engine includes an electric motor including a rotor and a stator for driving the rotor, a torque converter downstream of the electric motor, and a rotor input clutch selectively engageable and disengageable to drivingly connect the rotor to or disconnect the rotor from an output of an engine crankshaft. The rotor input clutch includes a piston and at least one clutch plate. The piston is configured for being pressed in a first axial direction into the at least one clutch plate to engage the rotor input clutch via a pressure increase of fluid in an apply chamber. The hybrid module also includes a compensation chamber assembly. The compensation chamber assembly and the piston define a compensation chamber radially offset from the apply chamber. The compensation chamber assembly is configured for applying a force on the piston in a second axial direction opposite the first axial direction via a pressure increase of fluid in the compensation chamber.