Hydrokinetic torque coupling device having turbine-piston lockup clutch and intermediate clutch component, and related methods

摘要

A hydrokinetic torque coupling device features an impeller including an impeller shell, a casing shell connected to the impeller shell to establish a casing with a first engagement surface, a turbine-piston including an axially movable turbine-piston shell, and an annular intermediate clutch component affixed to the turbine-piston shell and including a lockup portion. The lockup portion has a second engagement surface that is movable axially toward and away from the first engagement surface to position the hydrokinetic torque coupling device into and out of a lockup mode.

主权项

1. A hydrokinetic torque coupling device for coupling a driving shaft and a driven shaft together, comprising:
an impeller rotatable about a rotational axis and comprising an impeller shell; a casing shell rotatable about the rotational axis and connected to the impeller shell to establish a casing of the hydrokinetic torque coupling device, the casing having a first engagement surface; a turbine-piston coaxially aligned with and hydrodynamically drivable by the impeller, the turbine-piston comprising an axially movable turbine-piston shell; an annular intermediate clutch component affixed to the turbine-piston shell and comprising a lockup portion and a drive portion, the lockup portion of the intermediate clutch component having a second engagement surface that is movable axially toward and away from the first engagement surface of the casing to position the hydrokinetic torque coupling device into and out of a lockup mode in which the annular intermediate clutch component with the turbine-piston shell affixed thereto is mechanically locked with so as to be non-rotatable relative to the casing; an output hub; and a damper assembly interconnecting the annular intermediate clutch component and the output hub, the drive portion of the intermediate clutch component engaging the damper assembly and being axially movable relative to the damper assembly, wherein the casing shell forms the first engagement surface of the casing.