Patent · US Expired

Fuel injector and corresponding production method

US6817635B2 · kind B2 · utility

1Cited by

10References

20Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Martin Maier · Asperg, DE
Guenther Hohl · Stuttgart, DE
Guenter Dantes · Eberdingen, DE
Detlef Nowak · Untergruppenbach, DE

Key dates

Filing date	Oct 29, 2002
Grant date	Nov 16, 2004
Priority date	—
Expiry date	Nov 20, 2022

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S239/90
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A fuel injector for fuel injection systems of internal combustion engines and a method of manufacturing same are described. The fuel injector includes a valve seat body into which a valve seat face is introduced, which cooperates with a valve closing body to form a sealing seat, and a nozzle body to which the valve seat body is fixedly connected. The valve seat body is insertable into the interior of the nozzle body and on its downstream side it has a partially spherical outside geometry, which rests on a bearing surface of a seat body recess in the nozzle body. Valve seat body is mounted so it can rotate relative to the nozzle body on the bearing surface until its position is finally secured, and it may be aligned by a centering mandrel.

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