Three-dimensional stack-type piezo element and piezoelectric actuator having such a stack-type piezo element

US7880366B2 · kind B2 · utility

Assignee

• EADS Deutschland GmbH · DE

Inventors

• Boris Grohmann · Bouc-Bel-Air, FR
• Peter Konstanzer · Taufkirchen, DE
• Stefan Storm · Seelow, DE

Key dates

• Filing date: Dec 8, 2006
• Grant date: Feb 1, 2011
• Expiry date: Jan 8, 2027

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T29/42
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A three-dimensional stack-type piezo element has at least one surface that is shaped perpendicular to layer planes of the stack, so that, at least in sections, it is not parallel to a stacking direction of the piezo element.