| 20100051404 | Separable Clutch for a Motor Vehicle with Automatic Wear and Temperature Adjustment - A separable clutch for a motor vehicle has a clutch plate including a moveably mounted release unit for engaging and disengaging the clutch. The clutch plate is pressure-medium actuated and includes an actuating piston which acts on the release unit in order to engage and disengage the clutch, and a pressure chamber which can be pressurized, and relieved of pressure, by pressure medium and which is delimited at one side by at least one part of the actuating piston and at the other side by at least one part of a clamping piston. At least the actuating piston, the pressure chamber and the clamping piston are resiliently supported in a defined position against the release unit by spring force. The force exerted by the spring is smaller than a limit force required for actuating the release unit. On account of a pressure change, brought about by a clutch actuation, in the pressure chamber, the clamping piston actuates a clamping device such that the clamping piston is fixed before the actuating piston actuates the release unit. | 03-04-2010 |
