Patent · US Active

Piezoelectric actuator module with a sheathed piezoelectric actuator

US7595579B2 · kind B2 · utility

3Cited by

9References

15Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Rudolf Heinz · Renningen, DE
Dieter Kienzler · Leonberg, DE
Roland Herwig · Besigheim, DE
Udo Schaich · Stuttgart, DE

Key dates

Filing date	Aug 31, 2007
Grant date	Sep 29, 2009
Priority date	—
Expiry date	Nov 21, 2027

Classification

Technology area (CPC H)Electricity
CPC primaryH10N30/50
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A piezoelectric actuator module having a piezoelectric actuator, fastened between an actuator head and an actuator foot, and having a sheath, surrounding the piezoelectric actuator, for electrical passivation, is proposed in which the sheath is an insulation guard layer that is joined by nonpositive and/or positive engagement, by means of a mechanical attachment, to attachment components in the region of the end faces of the piezoelectric actuator or of the actuator head and/or of the actuator foot.

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