Patent · US Active

High pressure fuel pump

US8202065B2 · kind B2 · utility

2Cited by

2References

24Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Heinz Siegel · Stuttgart, DE
Volkmar Goldschmitt · Asperg, DE
Martin Laich · Murr, DE
Peter Ropertz · Oberriexingen, DE
Siamend Flo · Stuttgart, DE
Klaus Lang · Munster, DE
Joachim Zumbraegel · Eberdingen, DE
Rainer Wilms · Markgröningen, DE
Berthold Pfuhl · Markgröningen, DE
Victorio Toscano · Ludwigsburg, DE
Hans-Werner Schlingensief · Schwieberdingen, DE

Key dates

Filing date	Apr 16, 2007
Grant date	Jun 19, 2012
Priority date	—
Expiry date	Jul 29, 2029

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02M2200/31
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A high pressure fuel pump encompasses at least one delivery chamber and one high pressure outlet. in addition, a pressure limiting valve with a valve that is actuated by a pressure differential is provided that can open from the high pressure outlet to the delivery chamber. On a high pressure side of a valve seat of the pressure limiting valve, it is advantageous that a throttle device is provided, whose free cross section is at most approximately equal to a desired maximum opening cross section of the pressure limiting valve.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.