Robert Boschgmbh

Waldemar Kiel

Achim Koehler

Dietmar Uhlmann

Markus Nieslony

Jochen Aleker

Matthias Distel

Alfons Schoetz

Falko Bredow

Hrvoje Lalic

Jens-Peter Nagel

A check valve having a valve housing inserted into a receptacle in which housing a pistonlike valve member is guided longitudinally displaceably and cooperating with a valve seat on the valve housing. The valve member is urged in the closing direction by a prestressed closing spring and in the opening direction by the pressure prevailing in an inlet, and the valve member is inserted into the valve housing from the side of the valve seat. The valve housing is embodied in one piece and is embodied as cup-shaped and has both a bottom and a jacket region that defines a recess. With the open end of its recess, the valve housing points out of the receptacle, and the valve seat is located on the bottom of the valve housing, facing away from the recess. With a shaft, the valve member protrudes through a bore in the bottom into the recess in which the closing spring is located.

Check valve for a high-pressure pump of a fuel injection system for an internal combustion engine

Growing community of inventors

Gerlingen, Germany

Waldemar Kiel