Patent · US Expired

Fuel injection valve

US6276335A · kind A · utility

4Cited by

6References

12Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Walter Egler · Stuttgart, DE
Peter Boehland · Erbach, DE
Lorenz Betz · Wassertrüdingen, DE
Ralf Hentschel · Munich, DE

Key dates

Filing date	Dec 17, 1999
Grant date	Aug 21, 2001
Priority date	—
Expiry date	Dec 17, 2019

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02M2200/04
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A fuel injection valve for high-pressure injection of fuel from a central high-pressure line into combustion chambers of an internal combustion engine, which includes a switching valve with a valve seat and a valve ball; the valve ball in the opened state is lifted from the valve seat by means of a high-pressure jet which is supplied from a throttle bore by a pressure chamber operatively connected to a central high-pressure line. The transition from the throttle bore to the valve seat is embodied as a diffuser.

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