Patent · US Expired

Fuel injection valve

US6612539B1 · kind B1 · utility

6Cited by

8References

11Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Wolfgang Ruehle · Ditzingen, DE
Juergen Ulm · Eberdingen, DE

Key dates

Filing date	Apr 4, 2001
Grant date	Sep 2, 2003
Priority date	—
Expiry date	Apr 4, 2021

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02M2200/30
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A fuel injector, particularly an injector for a fuel injection system of an internal combustion engine, includes a piezoelectric or magnetostrictive actuator and a valve closure member which is actuable by the actuator with the aid of a valve needle and which is cooperable with a valve-seat surface to form a sealing seat. An electromagnetic damping device is provided for damping the movement of the valve needle.

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