Robert Boschgmbh

Ingolf Kahleyss

Peter Boehland

Uwe Gordon

Achim Brenk

Walter Egler

Manfred Mack

Wolfgang Klenk

Werner Teschner

Sebastian Kanne

Hansjoerg Egeler

Giovanni Ferraro

A fuel injection system, having a fuel injection valve and a control valve, which control valve has a control valve member that is longitudinally displaceable in a control valve bore. A control valve sealing face is embodied on the control valve member; it cooperates with a control valve seat and thus controls the communication between a first pressure space and a second pressure space; the first pressure space communicates with a high-pressure collection chamber. In a valve body, a bore is embodied in which a pistonlike valve needle, with its end toward the combustion chamber, controls the opening of at least one injection opening by executing a longitudinal motion in response to the pressure in a pressure chamber; the pressure chamber communicates with the second pressure space via an inlet conduit. The first pressure space communicates via a throttle with a damping chamber, embodied as a blind bore and otherwise closed off, as a result of which pressure fluctuations that occur upon closure of the control valve are rapidly damped.

Fuel injection system for internal combustion engines

Growing community of inventors

Marbach, Germany

Ingolf Kahleyss