Control valve for diesel engine fuel injection system

摘要

The control valve has a valve body (20) axially movable in a valve chamber (14) and forming a firsts eat valve for selective control of the fluid connection between an inlet (16), an outlet (18) and a return (19) connector. The first valve is arranged between the output and return connections and is normally closed. A second valve body (40) in the valve chamber forming a second seat valve is arranged between the input and output connections and is normally open.