Robert Boschgmbh

Falko Bredow

Andreas Kellner

Michael Mennicken

Joachim Boltz

Hans-Christoph Magel

Nadja Eisenmenger

Achim Brenk

Juergen Hanneke

Achim Koehler

Dirk Vahle

Helmut Clauss

Jochen Aleker

Markus Nieslony

Thomas Ludwig

Alfons Schoetz

Matthias Distel

Martin Katz

Hrvoje Lalic

Lorenz Zerle

Waldemar Kiel

Disclosed is a fuel injection device comprising a housing and a valve element disposed therein and cooperating with a valve seat located in the area of at least one fuel discharge port. The valve element is composed of several parts while at least two parts of the valve element are coupled to each other via a hydraulic coupler.

Fuel injection device for an internal combustion engine using direct fuel injection

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

The fuel injection system has a high-pressure pump that delivers fuel to an accumulator and fuel supply pump delivers fuel to the suction side of the high-pressure pump, with a fuel metering unit between the fuel supply and high-pressure pumps to variably adjust the fuel quantity taken in by the high-pressure pump. The accumulator is connected to at least one fuel injector and a return leads from the fuel injector(s). The fuel return from the injector(s) feeds into the connection between the fuel supply pump and the fuel metering unit. A connection controlled by a pressure valve leads from the fuel return to a discharge region. The high-pressure pump only draws fuel from the fuel return in operating states in which the fuel quantity delivered by the fuel supply pump is less than the required intake quantity of the high-pressure pump.

Fuel injection device for an internal combustion engine

Growing community of inventors

Remseck, Germany

Falko Bredow