Patent · US Expired

Method for positioning the actuating drive in a fuel injector device for implementing said method

US6705587B1 · kind B1 · utility

10Cited by

2References

2Claims

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	May 14, 2001
Grant date	Mar 16, 2004
Priority date	—
Expiry date	May 14, 2021

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.