Robert Boschgmbh

Peter Bauer

Achim Koehler

Sascha Ambrock

Markus Koch

Matthias Distel

Karl-Friedrich Ruesseler

Wolfram Rittmannsberger

Ulrich Maier

Gernot Repphun

The high pressure pump includes a drive shaft with at least one cam or eccentric and at least one pump element with a pump piston driven in the reciprocating direction by the cam or eccentric on the driveshaft in a reciprocating motion. A support element is arranged between the pump piston and the cam or eccentric on the driveshaft and also a roller running on the cam or eccentric is mounted to rotate therein. A support for the roller in the direction of rotation is arranged adjacent to the same in the direction of the rotational axis of the roller. The roller and/or the support include a surface with high wear resistance at least in the contact region between the roller and the support.

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

The fuel injection device has a high-pressure pump () that supplies fuel to a reservoir and is connected to injectors disposed in the cylinders of the engine. A fuel-supply pump delivers fuel from a fuel tank to the suction side of the high-pressure pump. An electrically actuated control valve adjusts the quantity of fuel that the high-pressure pump delivers to the reservoir. The control valve is disposed on the pressure side of the high-pressure pump and can be switched between a first position, in which the pressure side of the high-pressure pump is closed off from a pressure relief region, and a second position, in which the pressure side of the high-pressure pump is connected to the pressure relief region.

Fuel injection device for an internal combustion engine

Growing community of inventors

Schwieberdingen, Germany

Peter Bauer