A fuel injector for injecting fuel into a combustion engine comprises a valve with a movable needle for opening or closing the valve, an actuator for moving the needle into an open position and two springs mounted in parallel to move the needle into a clos...

An automotive piston engine has a fuel injection pump with a housing (1) incorporating a sliding piston-shaped needle (12). Longitudinal movement brings the needle into contact with a valve seat (15), thereby regulating the fuel injection aperture (17, 18)...

The injection valve has a pre-loaded longitudinally elastic sleeve-shaped element (35,37) to charge a valve member (10) in closing direction. The sleeve element is rotary-symmetrical, and is e.g. bellows-shaped. The bellows consist of truncated cone-shaped...

The present invention provides a workpiece (10) having a blind bore (12) of stepped form defining a chamber (16a, 16b) within which a seating member (14) is arranged. A region of the seating member (14) is shaped to form an interference fit within a first ...