Robert Boschgmbh

Audi Ag

Martin Laich

Berthold Pfuhl

Bernd Schroeder

Dirk Hoefner

Sven Troester

Maximilian Stichlmeir

Heinz Siegel

Peter Ropertz

Klaus Lang

Siamend Flo

Rainer Wilms

Volkmar Goldschmitt

Joachim Zumbraegel

Victorio Toscano

Hans-Werner Schlingensief

In a fuel system of an internal combustion engine, a low-pressure delivery unit for the fuel, at least indirectly delivers fuel to at least one low-pressure injection device. The fuel system further provides a high-pressure delivery unit, which has a drive region and a delivery region and at least indirectly delivers fuel to at least one high-pressure injection device. According to the invention, the fuel is first delivered by the low-pressure delivery unit to the drive region of the high-pressure delivery unit and from there onward to the low-pressure injection device and/or to the delivery region of the high-pressure delivery unit.

Fuel system for an internal combustion engine

A high pressure fuel pump encompasses at least one delivery chamber and one high pressure outlet. in addition, a pressure limiting valve with a valve that is actuated by a pressure differential is provided that can open from the high pressure outlet to the delivery chamber. On a high pressure side of a valve seat of the pressure limiting valve, it is advantageous that a throttle device is provided, whose free cross section is at most approximately equal to a desired maximum opening cross section of the pressure limiting valve.

High pressure fuel pump

Growing community of inventors

Murr, Germany

Martin Laich