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. 15, 2004
Filed:
May. 10, 2001
Applicant:
Inventor:
Wolfgang Ruehle, Ditzingen, DE;
Assignee:
Robert Bosch GmbH, Stuttgart, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05B 1/704 ;
U.S. Cl.
CPC ...
B05B 1/704 ;
Abstract
A fuel injector, particularly an injection valve for fuel-injection systems of internal combustion engines, has a first piezoelectric or magnetostrictive actuator and a valve-closure member that can be actuated by the first actuator via a valve needle. The valve closure member interacts with a valve seat surface to form a sealing seat. A second piezoelectric or magnetostrictive actuator acts on the valve needle in opposition to the first actuator. In this context, the actuators are interconnected by a supporting element which is permanently mounted in the fuel injector.