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. 02, 2010
Filed:
Feb. 11, 2003
Bernhard Fischer, Toeging A. Inn, DE;
Bernhard Gottlieb, München, DE;
Andreas Kappel, Brunnthal, DE;
Hans Meixner, Haar, DE;
Randolf Mock, Hohenbrunn, DE;
Bernhard Fischer, Toeging A. Inn, DE;
Bernhard Gottlieb, München, DE;
Andreas Kappel, Brunnthal, DE;
Hans Meixner, Haar, DE;
Randolf Mock, Hohenbrunn, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
The invention relates to an injection valve which has a piezo actuator that is functionally connected to a nozzle needle by a hydraulic transmission device. The hydraulic transmission device is connected to a pressure reservoir by a sealing gap so that the pressure differences between the pressure reservoir and a hydraulic chamber of the hydraulic transmission device are compensated in the long term.