Patent · US Expired

Method for producing a compensation collar for an injection valve

US7310986B2 · kind B2 · utility

0Cited by

19References

7Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Wilhelm Frank · Echterdingen, DE
Stefan Lehmann · Tucson, US
Martin Neumaier · Isen, DE
Gerd Schmutzler · Kareth, DE
Wendelin Kluegl · Dietenhofen, DE
Guenter Lewentz · Hemmingen, DE
Reda Rizk · Recklinghausen, DE

Key dates

Filing date	Jan 16, 2004
Grant date	Dec 25, 2007
Priority date	—
Expiry date	May 5, 2025

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T137/5987
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

The positioning of the actuating drive in a fuel injector with a piezoactor (2) that is screwed into the housing (1) of the fuel injector is performed by applying a voltage (U) to the piezoactor (2) that corresponds to a given idle stroke (h), and the surface grinding of the housing (3) and base plate (4) of the piezoactor (2) when voltage is applied. Between the housing (1) of the fuel injector and the housing (3) of the piezoactor (2), there is also provided a compensation collar (9) of a suitable thickness.

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