Coupling device for producing or interrupting flux between two coupling parts in drive train of hybrid system of motor vehicle, is actuated by piston element, which is pressurized with actuating fluid comprising uniform speed

摘要

The device (8) is actuated by a piston element (17), which is moved in an axial direction and is pressurized with actuating fluid. A coupling part (11) is connected with a device (26) for influencing rotational speed difference of the actuating fluid of an axially movable piston element (17) by a freewheel assembly (41). The actuating fluid comprises uniform speed during normal operation of the piston element. The rotational speed difference influencing device comprises an influencing element (28), which is supported in an axial direction of another coupling part (12).