Patent ID: 6811134
Filing Date: 2004-11-02
Classification: F02M

Abstract:
In a valve for controlling fluids, having an piezoelectric actuator unit for actuating a valve member (10) disposed in an at least one-piece valve body (22) and that has at least one displacement piston (11) communicating with the actuator unit and at least one actuating piston (13) operatively connected to the displacement piston (11) via a hydraulic coupler (12), which actuating piston is connected to a valve closing member (14) which cooperates with at least one valve seat (15) and in the closing position disconnects a control chamber (19) from an outlet chamber (20), the hydraulic coupler (12) being provided with a filling device, the improvement wherein the valve closing member (14) has a pistonlike cylindrical region (17; 41; 51), which with the valve body (22) forms at least one filter gap for the fluid to be delivered to the filling device, and at whose level an inlet conduit (26) of the filling device branches off.