| 摘要 |
A clutch actuating device in which an actuating piston coupled via actuating members with a clutch release bearing and, at an axial distance to this, a compensating piston are longitudinally displaceably guided in a hollow cylindrical housing, which pistons are held at a distance by a pressure spring and together with a section of the cylinder wall of the housing delimit an actuating oil chamber connected to an external oil reservoir, characterized in that the compensating piston with its side opposed to the actuating piston delimits a compensating oil chamber formed by the bore wall and the housing bottom, the actuating oil chamber and the compensating oil chamber being connected by an oil passage which is regulated both as a function of the distance between the pistons and of the operational state, the actuating oil chamber being connected with a pressure oil source and the actuating piston and the compensating piston being additonally coupled with each other in the axial direction by connecting means which transfer only tensile forces.
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