Patent ID: 7152402

Claim:
A control valve for selectively controlling a flow of pressurised hydraulic fluid from an electrically driven pump in a hydraulically powered vehicle seat adjustment system, the control valve comprising: a main body defining a first duct, a second duct, and a third duct for the passage of pressurised fluid delivered from the pump, and a moveable valve member associated with the first, second, and third ducts which in use is moveable relative to the main body from a first position to second and third operative positions, wherein the movable valve member when in the first position closes off the ducts, and when in the second operative position permits fluid flow between the first and second ducts, and when in the third operative position permits fluid flow between the first and third ducts, a first integral set of electrical contacts comprising first and second contact elements which are arranged in use and when the valve member is in the second position to activate the electrical pump to provide a supply of pressurised hydraulic fluid to the valve; and a second integral set of electrical contacts which are arranged in use and when the valve member is in the third operative position to activate the pump to provide a supply of pressurised fluid to the valve.