Patent · US Expired

Fuel injection valve

US6764027B2 · kind B2 · utility

2Cited by

6References

8Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

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

Key dates

Filing date	Sep 24, 2002
Grant date	Jul 20, 2004
Priority date	—
Expiry date	Sep 24, 2022

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02M61/162
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A fuel injector for fuel injection systems of internal combustion engines includes a valve needle and a valve-closure member mechanically linked to it, which cooperates with a valve-seat surface situated in a valve-seat member to form a sealing seat, and at least one swirl-producing element which is situated upstream from the sealing seat in the valve-seat member. One or more swirl channels which are open toward the upstream side of the valve-seat member are incorporated into the upstream side of the valve-seat member as a swirl-producing element.

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