The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 05, 2012
Filed:
Jan. 09, 2009
Applicant:
Michael Peter Cooke, Gillingham, GB;
Inventor:
Michael Peter Cooke, Gillingham, GB;
Assignee:
Delphi Technologies Holding S.arl, Troy, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 41/053 (2006.01);
U.S. Cl.
CPC ...
Abstract
A piezoelectric actuator for use in a diesel engine. The actuator comprises a piezoelectric element which is encapsulated such that a layer of gas at a pressure above atmospheric pressure surrounds the piezoelectric element. The presence of the gas within the encapsulation around the element avoids the need to passivate electrodes exposed on the surface of the element.