Patent · US Active

Piezoelectric actuator with a sheathing composed of a composite material

US8261720B2 · kind B2 · utility

0Cited by

5References

6Claims

0Family size

Assignee

Daimler AG · DE

Inventors

Rainer Capellmann · Würselen, DE
Gregor Renner · Stuttgart, DE
Holger Stark · Allmersbach im Tal, DE

Key dates

Filing date	Apr 5, 2007
Grant date	Sep 11, 2012
Priority date	—
Expiry date	Jan 19, 2029

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02M51/0603
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A piezoelectric actuator for flowing-around media, with a piezo element arranged between two end caps. The piezo element is surrounded by a ring-shaped sheathing connected to the end caps. The sheathing consists, at least in portions, of a composite material with at least two layers, at least one layer consisting of a metallic material and at least one layer consisting of a polymer.

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