Patent · US Active

Procedure for positioning the actuating drive in a fuel injector and device for performing the procedure

US8720852B2 · kind B2 · utility

0Cited by

36References

14Claims

0Family size

Assignee

CONTINENTAL AUTOMOTIVE GMBH · 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	Jul 16, 2007
Grant date	May 13, 2014
Priority date	—
Expiry date	Jul 20, 2029

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

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