Clutch actuator controlled by a pressure medium for a compressor clutch of a commercial vehicle

摘要

A clutch actuator controlled by a pressure medium, in particular for a compressor clutch of a commercial vehicle has an actuating piston displaceably disposed in a housing in an axial direction. An end of the actuating piston is supported in the axial direction on an elastic membrane, sealing a first region of the housing off from a second region of the housing. The elastic membrane includes a raised area on the side opposite the actuating piston. The clutch actuator can be used in a compressor clutch for a commercial vehicle.

主权项

1. A pressure medium-controlled clutch actuator, comprising:
a housing; an actuating piston arrangeable to move in an axial direction in the housing; an elastic diaphragm having a rim, the elastic diaphragm supporting one end of the actuating piston in the axial direction, the elastic diaphragm sealing-off a first area of the housing from a second area of the-housing, wherein
the elastic diaphragm includes a raised area that extends in a direction away from the actuating piston distant from the rim;the raised area is formed by a region of the elastic diaphragm with increased thickness, as compared to a rest of the elastic diaphragm;said raised area rests in an assigned depression of the housing in one operating position of the clutch actuator such that the raised area completely fills the assigned depression; andsaid raised area in conjunction with said assigned depression of the housing achieve a biasing of the actuating piston in the axial direction when the clutch actuator is in said one operating position.