Patent ID: 6296019
Filing Date: 2001-10-02
Classification: F16F,F16H,Y10T

Abstract:
Pressure medium control device for controlling the pressure of a consumer, with a consumer with a first pressure medium connection and a second pressure medium connection, with a pressure generating device such as a pump and with a valve for controlling the pressures at the first and second pressure medium connection wherein the valve has a slider axially displaceable inside an oblong hole bore of a housing and axially displaceable by pressure biasing in a control pressure chamber and against the resetting force of an energy accumulator, wherein furthermore the oblong hole bore has axially spaced indentations provided on the circumference of the bore and the slider has at least one circumferential groove, wherein the slider has at its one end area a bore with the diameter D.sub.12 which holds an axially displaceable piston and a pressure medium duct between the first circumferential groove of the slider and the bore produces a fluid connection, and at the other axial end area of the slider is a stepped area which has in the end area of the slider a smaller diameter than in an area remote from the axial end of the slider.