Pierburg Gmbh

Pierburg Ag

Heinz Beier

Bernhard Radermacher

Henning Garcke

Horst Breuer

A fuel supply system for an internal combustion engine in which a fuel pump pumps fuel from a fuel tank to a fuel distributor and a pressure regulator is connected between the fuel pump and the fuel distributor to respond to pressure of the fuel pumped by the fuel pump, to return fuel back to the fuel tank as a function of the pressure of the pumped fuel, a pressure reducer being disposed between the pressure regulator and the fuel distributor to reduce the pressure of the fuel delivered to the fuel distributor to a value lower than the pressure of the fuel at the pressure regulator.

Fuel supply system for internal combustion engines

A pressure control valve having a valve body 2 consisting of metal material and a spring 10 determining the control pressure of the valve and designed as a flat pressure spring with radial arms, the spring being arranged in a chamber 20 of valve body 2 which is connected to the ambient atmosphere or to the inlet of the internal combustion engine. The flat pressure spring 10 is placed under tension between a deformable bead 12 of valve body 2 and a membrane cap 11 and the tension force of the spring is adjusted by deforming the bead 12.

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Meerbusch, Germany

Heinz Beier