Pressure regulating valve for controlling hydraulic valve in e.g. dual clutch transmission for controlling transmission components, has partial valve combined with mechanically actuatable seat valve as another partial valve

摘要

The valve (2) has supply terminal (18, 19), where a supply pressure lies against the supply terminals. A tank pressure lies against a tank terminal. A working pressure lies against working terminals (13, 14). A partial valve (21) is designed as a pressure reducing valve e.g. slide valve, with an actuating piston (23) and combined with a mechanically actuatable seat valve as another partial valve (22). The piston is movable against a spring force by proportional magnets (50). The latter valve includes a closing piston (24) disconnecting a connection between the supply and working terminals.