Patent · US Expired

Fuel injection system for an internal combustion engine

US6499465B1 · kind B1 · utility

8Cited by

3References

6Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Bernd Mahr · Plochingen, DE
Martin Kropp · Ditzingen, DE
Hans-Christoph Magel · Pfullingen, DE
Wolfgang Otterbach · Stuttgart, DE

Key dates

Filing date	May 30, 2001
Grant date	Dec 31, 2002
Priority date	—
Expiry date	Jun 8, 2021

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02M2200/21
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A fuel injection system having at least two different, high system pressures for an internal combustion engine, includes a first central pressure reservoir for the lower system pressure and includes a second central pressure reservoir, supplied from a high-pressure pump, for the higher system pressure, both pressure reservoirs being connectable by line to the injector of each cylinder, and to increase the efficiency, a two-stage high-pressure pump, by whose lower stage the first pressure reservoir and by whose higher stage the second pressure reservoir are supplied.

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