BREMSDRUCKREGELVORRICHTUNG FUER EINE HYDRAULISCHE KRAFTFAHRZEUGBREMSANLAGE

摘要

A brake pressure regulating device has a brake pressure sender unit (1, 19, 20) connected to a brake (VL, VR, HL, HR) via a pressure line (6, 7, 12, 13). A pressure-controlled inlet valve (14) in the pressure line (6, 7, 12, 13) connects the brake pressure sender unit (1, 19, 20) to the brakes (HL, HR) without throttling in a first operating position and via a throttle diaphragm (49) in a second operating position. The inlet valve (14) has a piston (35) which is acted on in one direction by the pressure in the pressure line (6, 7, 12, 13, 28) and in the opposite direction by a spring (38) and by the pressure in a return line (15, 44). The return line (15, 44) contains an outlet valve (16) controlled by a regulating device. In its rest position, the outlet valve (16) shuts off the return line (15, 17, 18) and in its operating position frees the return line (15, 17, 18). The inlet valve (14) has a valve element (39) which co-operates with the piston (35). In the second operating position, the valve element (39) shuts off the pressure line (12, 13) and frees a valve seat (37) formed by a longitudinal bore (36) in the piston (35) through which the brake pressure receiver (HL, HR) can be connected to the return line (15, 17, 18).