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:
Mar. 04, 2008
Filed:
Oct. 08, 2004
Gerd Schmutzler, Kareth, DE;
Marcus Unruh, Zeitlarn, DE;
Gerd Schmutzler, Kareth, DE;
Marcus Unruh, Zeitlarn, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
A seal () for a piezo-actuator of a fuel injector with terminal posts () projecting out of the piezo-actuator and a head arrangement () mounted on the piezo-actuator with openings () for passage of the terminal posts () is particularly suitable even for comparatively thin head plates. A sealing unit () mounted on the head arrangement () and provided with openings for passage of the terminal posts () is provided, having a support (), on which a sealing material () is arranged, which is in contact in a sealing manner with the peripheral surfaces of the terminal posts () and a peripheral region of the head arrangement () and in which an element () made of microporous material is integrated to create gas permeability.