Patent · US Expired

Method and apparatus for performing a fuel injection

US6675773B1 · kind B1 · utility

8Cited by

11References

20Claims

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	Jul 27, 2001
Grant date	Jan 13, 2004
Priority date	—
Expiry date	Nov 14, 2021

Classification

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

Abstract

A fuel injection is effected by means of a high-pressure pump (2) and a pressure reservoir chamber (6) for generating and storing a first system pressure. This system pressure is not used for injection; instead, by means of the pressure booster unit (9), a higher injection pressure is generated during the injection, and this injection pressure can be reduced to shape the course of injection. By means of this invention, an improved capability of metering the fuel injection and an improved execution of fast switching times are achieved.

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