Robert Boschgmbh

Juergen Koreck

Matthias Maess

Siamend Flo

Thorsten Allgeier

Oliver Albrecht

Walter Maeurer

Frank Nitsche

Andreas Plisch

Gerd Teike

Winfried Eckart

Andreas Krause

Valentin Szermutzky

Ersin Dogan

The present invention relates to a fuel pump for pumping fuel, comprising a piston () and a diaphragm seal element (), which seals on an inner annular seal seat () and an outer annular seal seat (), wherein the following equation is satisfied: (Ra&#x2212;ra)/(ri+L)=ra/ri, where ri is the inner radius of the inner seal seat (), ra is the inner radius of the outer seal seat (), Ra is the outer diameter of the piston () and L is a difference between an outer radius (Ria) of the inner seal seat () and the inner radius (ri) of the inner seal seat (). The invention further relates to a method for operating a fuel pump.

Fuel pump having improved pumping behavior

A high-pressure fuel pump includes a pump housing with a housing wall and a damping device configured to damp inlet-side pressure pulses by varying a damping volume with an elastically deformable wall. At least one section of the elastically deformable wall is formed from one or more of at least one part of a jacket-like area of the housing wall and at least one part of a sealing support. The section is embodied such that it includes at least one main part configured to vary the damping volume.

High-pressure fuel pump

Growing community of inventors

Ludwigsburg, Germany

Juergen Koreck