Piezoelectric actuator

US5811911A · kind A · utility

Assignee

• Daimler-Benz AG · DE

Inventors

• Peter Jänker · Riemerling, DE
• Frank Hermle · Munich, DE

Key dates

• Filing date: Nov 7, 1996
• Grant date: Sep 22, 1998
• Expiry date: Nov 7, 2016

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10N30/2047

Abstract

The piezoelectric actuator consists of at least two disk-shaped congruent bending elements which each have a carrier plate made of a hard-elastic material with a layer of a piezoelectric material applied to one or both sides. Two bending elements respectively are connected with one another by way of at least two bending joints arranged on the circumference of the carrier plates.