Patent · US Expired

Fuel injection valve for internal combustion engines

US6322007A · kind A · utility

2Cited by

6References

5Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Detlev Potz · Stuttgart, DE
Michael Mennicken · Wimsheim, DE
Ralf Wirth · Leonberg, DE
Ralf Maier · Neuendorf, DE
Barbara Heine · Stuttgart, DE
Stefan Haug · Waldenbuch, DE

Key dates

Filing date	Apr 10, 2000
Grant date	Nov 27, 2001
Priority date	—
Expiry date	Apr 10, 2020

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02M61/18
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A fuel injection valve for internal combustion engines, having a valve member guided axially displaceably, counter to a closing force, in a blind bore of a valve body. The valve member on an end toward the combustion chamber has a conical valve sealing face, with which the valve sealing face cooperates with a conical valve seat face on the inward-projecting closed end of the blind bore. A blind bore region, adjoins the conical valve seat face downstream, from which region injection openings lead into the combustion chamber of the engine. The blind bore wall region that receives the injection openings is embodied conically, and the injection openings have a certain minimum spacing from an upper and a lower end of this conical blind bore wall region.

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