Patent · US Expired

Fuel injection valve

US6626373B1 · kind B1 · utility

1Cited by

6References

11Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Wolfgang Ruehle · Ditzingen, DE
Hubert Stier · Asperg, DE
Matthias Boee · Ludwigsburg, DE
Guenther Hohl · Stuttgart, DE
Norbert Keim · Besigheim, DE

Key dates

Filing date	Aug 28, 2001
Grant date	Sep 30, 2003
Priority date	—
Expiry date	Feb 25, 2022

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02M2200/304
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A fuel injector, especially an injector valve for fuel injection equipment in internal combustion engines, includes a piezoelectric or magnetostrictive actuator and a valve closing body, operable by an actuator with the aid of a valve needle, which cooperates with a valve seat surface to form a sealing seat, and a valve housing. The actuator is prestressed by a compression spring and, together with this, is surrounded by an actuator housing which is supported by fluid at both its ends.

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