Patent · US Expired

Fuel injection valve

US7677478B2 · kind B2 · utility

4Cited by

4References

10Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Martin Maier · Asperg, DE
Joerg Heyse · Markgröningen, DE

Key dates

Filing date	Nov 19, 2003
Grant date	Mar 16, 2010
Priority date	—
Expiry date	Aug 10, 2025

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02M61/1853
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A fuel injector for the direct injection of fuel into a combustion chamber of an internal combustion engine includes an energizable actuator, a valve needle, which is in operative connection with the actuator and acted upon by a restoring spring in a closing direction to actuate a valve-closure member, which forms a sealing seat together with a valve-seat surface formed at a valve-seat body. The valve-seat body includes at least two spray-discharge orifices. The pressure of the fuel flowing through the fuel injector is greater than 10 bar.

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