Patent · US Expired

Fuel-injection valve

US6840467B2 · kind B2 · utility

2Cited by

6References

10Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Guenter Dantes · Eberdingen, DE
Detlef Nowak · Untergruppenbach, DE

Key dates

Filing date	Oct 2, 2001
Grant date	Jan 11, 2005
Priority date	—
Expiry date	Feb 25, 2022

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/12
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

Fuel injector, in particular, a fuel injector for the direct injection of fuel into a combustion chamber of an internal combustion engine is described having an actuator for actuating a valve needle, the valve needle having on an injection-side end a valve-closure member which forms a sealing seat together with a valve-seat surface, which is formed on a valve-seat member. Fuel channels are arranged in a valve needle guide, connected to the valve-seat member or designed as a single piece with it, in several rows circumferentially in the valve needle guide, at least one row of fuel channels being arranged, in the resting state of the fuel injector, above a guide line of the valve-closure member.

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