Patent · US Expired

Piezo actuator and associated production method

US7564169B2 · kind B2 · utility

3Cited by

5References

13Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Bernd Döllgast · Erlangen, DE
Carsten Schuh · Baldham, DE
Claus Zumstrull · Regenstauf, DE

Key dates

Filing date	Oct 12, 2004
Grant date	Jul 21, 2009
Priority date	—
Expiry date	Oct 12, 2024

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/49002
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A support assembly for a piezoelectric actuator (15), in particular for a piezoelectric actuator for driving an injector for the injection system of an internal combustion engine has a holder (5-10) for spatially securing a piezoelectric stack (2) and two associated connection pins (11, 12) for electrically contacting the stack (2). The support assembly is configured as a single support, which only holds a single piezoelectric stack (2) with two associated connection pins (11, 12).

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