Robert Boschgmbh

Alfons Schoetz

Jochen Aleker

Karl Konrath

Andreas Dutt

Achim Koehler

Walter Fuchs

Markus Nieslony

Helmut Tschoeke

Gerhard Meier

Matthias Distel

Karl-Friedrich Ruesseler

Claus Koester

Mohammad-Ali Khosrawi

Falko Bredow

Waldemar Kiel

Wolf-Ruediger Walk

Namik Karaosmanoglu

Markus Schetter

A high-pressure pump has at least one pump element including a pump piston defining a work chamber and driven at least indirectly by a drive shaft in a reciprocating motion, counter to the force of a restoring spring. The pump piston is braced on the drive shaft at least indirectly via a sleevelike tappet, and the restoring spring engages at least the pump piston. A support element in the tappet braces the pump piston toward the drive shaft and is braced at least indirectly on the drive shaft. The restoring spring, via a spring plate, engages the pump piston and the tappet. The spring plate is elastically deformable in the direction of motion of the pump piston in such a way that as a result of its elastic deformation, deviations in the position of its contact faces on the pump piston and on the tappet are compensated for.

High-pressure pump, in particular for a fuel injection device of an internal combustion engine

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

Sealing element for a hydraulic screw connection comprising a hollow

Fuel injection pump for internal combustion engines

Growing community of inventors

Ditzingen, Germany

Alfons Schoetz