Robert Boschgmbh

Volkmar Goldschmitt

Helmut Rembold

Karl Gmelin

Uwe Mueller

Markus Amler

Edmund Schaut

Klaus Joos

Heinz Siegel

Udo Hafner

Winfried Moser

Jens Wolber

Thomas Frenz

Ruediger Weiss

Hansjoerg Bochum

Gottlob Haag

Manfred Ruoff

Peter Ropertz

Matthias Philipp

Hans-Peter Stiefel

Siamend Flo

Berthold Pfuhl

Klaus Lang

Rainer Wilms

Joachim Zumbraegel

Bernd Herrmann

Martin Laich

Mathias Schumacher

Victorio Toscano

Hans-Werner Schlingensief

Matthias Einecke

Karlheinz Schmidtpeter

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

The fuel supply apparatus for supplying fuel to an internal combustion engine has a fuel tank ( ), a first fuel pump ( ) that supplies fuel from the fuel tank to a fuel line ( ), a second fuel pump ( ) that supplies fuel from the fuel line ( ) via a pressurized line to at least one fuel valve ( ) and a fuel return line ( ) that connects the fuel line ( ) to the fuel tank for return of excess fuel. A shut off valve ( ), which is closed at high temperatures, and a pressure regulator valve ( ) are arranged hydraulically in series in the fuel return line ( ). A fuel scavenger line ( ) is provided, by which fuel at high temperatures is returned to the fuel tank ( ). The fuel scavenger line ( ) conducts the fuel back to the fuel tank ( ), at least partially through the second fuel pump ( ) and through a hydraulic resistance. Gas bubble formation is prevented by a high fuel supply pressure and by transfer of heat from the second fuel pump ( ).

Fuel supply apparatus for an internal combustion engine

A method for cooling a fuel injection system and fuel injection systems are proposed that improve the hot-starting performance of the internal combustion engine.

Method and apparatus for cooling a fuel injection system

Fuel pump

Growing community of inventors

Asperg, Germany

Volkmar Goldschmitt