Patent ID: 7392971

Claim:
An infinitely variable directional valve comprising a valve body through which the connection from an inlet port to a discharge port can be controlled to be opened and comprising a blocking means for a substantially leakage-free shut-off of the inlet, the blocking means being designed to include a pilot control device, wherein the valve body is embodied as a seat slide and includes a closing cone which is prestressed counter to a valve seat, wherein the seat slide is separate from a control spring prior to energizing of a proportional magnet, wherein the seat slide has a control edge by which the connection between the inlet and the discharge can be controlled to be opened in a directional control valve function, wherein in the closing cone a pilot control valve seat is formed counter to which a pilot control valve body is prestressed, wherein the pilot control valve body is adapted to be lifted off the pilot control valve seat by energizing the proportional magnet in order to perform pressure compensation at the seat slide, and in that the seat slide is adapted to be driven by the pilot control valve body so as to raise the closing cone from the valve seat.