Abstract: A parallel double-clutch device is arranged in a drivetrain of a motor vehicle between a drive unit and transmission of the drivetrain. The device comprises a first clutch arrangement assigned to a first transmission-input shaft for selectively transmitting torque between the drive unit and first transmission-input shaft. A second clutch arrangement is assigned to a second transmission-input shaft for selectively transmitting torque between the drive unit and second transmission-input shaft. The first clutch arrangement can be actuated by at least one hydraulically drivable first actuating piston assigned a first pressure chamber delimited by a first pressure-chamber housing and the first actuating piston. The second clutch arrangement can be actuated by at least one hydraulically drivable second actuating piston assigned a second pressure chamber delimited by a second pressure-chamber housing and the second actuating piston.

Abstract: One embodiment may include a multiplate clutch with a first plate set connected in a rotationally fixed manner to a first plate carrier, and with a second plate set connected in a rotationally fixed manner to a second plate carrier, wherein the plates of the two plate sets are arranged consecutively in an alternating manner in the axial direction and can be brought into frictional engagement with one another. At least one spring device is provided for at least one pair of plates consisting of two adjacent plates of the first plate set, by means of which, when the multiplate clutch is open, the two adjacent plates of the pair of plates can be spaced apart from each other in the axial direction, forming an axial spacing (a) which is greater than the width (b) of the in-between and optionally unstressed plate of the second plate set in the axial direction.

Abstract: A parallel double-clutch device is arranged in a drivetrain of a motor vehicle between a drive unit and transmission of the drivetrain. The device comprises a first clutch arrangement assigned to a first transmission-input shaft for selectively transmitting torque between the drive unit and first transmission-input shaft. A second clutch arrangement is assigned to a second transmission-input shaft for selectively transmitting torque between the drive unit and second transmission-input shaft. The first clutch arrangement can be actuated by at least one hydraulically drivable first actuating piston assigned a first pressure chamber delimited by a first pressure-chamber housing and the first actuating piston. The second clutch arrangement can be actuated by at least one hydraulically drivable second actuating piston assigned a second pressure chamber delimited by a second pressure-chamber housing and the second actuating piston.

Abstract: The invention relates to a device for axially positioning a clutch device, especially a dual-clutch device, on a rotary drive, wherein the clutch device is mounted so as to rotate about a rotational axis of said rotary drive. A retaining nut is coaxially screwed with the rotary drive, and the clutch device is indirectly or directly supported on said nut in an axial direction.

Abstract: The invention relates to a coupling arrangement comprising a component (6) fixed to a housing, a piston (2) that is located rotatably about an axis of rotation (?) relative to the component (6) fixed to a housing, a rotatable component (1) designed as a component mounted rotatably about the axis of rotation (?) relative to the component fixed to a housing and having a chamber (8) in the front region of the piston (2), a line arrangement (4) forming a communication line through the component (6) fixed to a housing and the rotatable component (1) to the chamber (8) for a pressure medium, and a rotary feedthrough seal (3) sealing the line arrangement (4) between the component (6) fixed to a housing and the rotatable component (1), wherein a radial inner distance (ri) and/or a radial outer distance (ra) of the piston (2) from the axis of rotation (?) is less than a radial seal distance (r0) of the rotary feedthrough seal (3).