Abstract: A release bearing is provided for transmitting release force to a corresponding force accumulator of each of the first and second clutch regions of the double clutch assembly, the release bearings being arranged in succession in the direction of an axis of rotation. Each of the release bearings has an action region for a respective release-force transmission member to act on, the release-force transmission members interacting on the same axial side of the release bearings. The action region of one of the release bearings includes a sleeve-like action element which is surrounded by the other release bearing. The sleeve-like action element has a holding region, by means of which the other release bearing is secured so that it cannot be removed from the sleeve-like action element.

Abstract: A damping device for installation in a hydraulic adjustment device such, for example, as for motor vehicle clutches. The hydraulic adjustment device has a cylinder that is either an input cylinder or actuator or an output cylinder. The input cylinder or actuator, which is connected to an operating pedal of the motor vehicle, is also connected to the output cylinder via a hydraulic line filled with fluid. The damping device opposes a throttle resistance to the flow of the fluid in both flow directions. The damping device comprises a disk having first and second spring washers on either side of the disk. The disk has passage openings, which are covered on the respective sides by one of the first and second spring washers. The damping device is installed in the hydraulic adjustment device to suppress disturbing vibrations acts as both a vibration filter and an operating speed limiter. In addition, a constant throttle resistance is maintained relative to the fluid at all ambient temperatures.

Abstract: A throttle device for use with a hydraulic adjustment devices that have an input cylinder and an output cylinder and a hydraulic line filled with fluid connecting the output cylinder and the input cylinder, is arranged in the hydraulic line for establishing various throttle resistances to the flow of the fluid in both flow directions through the hydraulic line. The throttle device includes a disk with at least one boring and/or at least one passage channel. The disk moves back and forth, as the fluid flows, in both flow directions, and thereby strikes against a first stop in one direction and against a second stop in the other direction. The throttle device in the form of a disk in the movement space which is a transition from the hydraulic line to the supply line of the cylinder in its diameter, with a stop disk secured in the hydraulic line forming the second stop is economically advantageous. The disk that acts as the valve is distinguished by its low cost.

Abstract: A seal element, in particular an elastomer gasket for use in hydraulic annular cylinders, such as in clutches, with a radially outer and a radially inner seal lip, characterized by the fact that the seal lips are axially offset in relation to one another.

Abstract: Disclosed is a pressure medium cylinder, especially a hydraulic input cylinder, located on the chassis of a motor vehicle and operated by means of a pedal, whereby the tappet for operating the piston in the cylinder housing can be attached to different lever lengths, so that different requirements for the power/displacement ratio can be met with one and the same input cylinder. It is advantageous that the same components are used, in particular, a changeably-mounted joint head that produces different lever lengths for the attachment of the articulated part in the pedal arm.

Abstract: An arrangement of foot operated elements for a motor vehicle includes a first element with a power booster for operating a brake and a second element with a second power booster for operating a clutch of the motor vehicle. The second power booster for actuating the clutch release is arranged adjacent the power booster for actuating the brake device. The power booster for the clutch has a linear guide which guides the second element, which is an actuating push rod by which the second power booster for the clutch can be operated directly. The second power booster for the clutch further has a servo device which further reduces the actuating forces and/or the operating paths for actuating the clutch.

Abstract: A slave cylinder for the operation of a friction clutch, especially in motor vehicles, with a housing, an inner portion, an annular or cylindrical piston which annular piston is positioned between the housing and the inner portion, a clutch release sleeve or clutch throwout sleeve or coupling socket joint which clutch release sleeve is in contact with the annular piston and can be axially displaced with respect to the housing, as well as a spring or pressure spring or compression spring which is supported by both the clutch release sleeve and the housing, and radial shoulders or steps or reliefs provided at the clutch release sleeve and at the housing to secure against torsion. The pressure spring may be characterized as a sinuous spring or zig-zag or no-sag spring. The ends of the pressure spring are positioned to make contact at the ends of the shoulders which shoulders act in the opposite direction to secure against torsion.