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:
Aug. 01, 2006
Filed:
Nov. 26, 2002
Walter Maeurer, Korntal-Muenchingen, DE;
Ulrich Doebler, Remseck, DE;
Hubert Stier, Vaihingen/Enz, DE;
Guenther Hohl, Stuttgart, DE;
Rene Deponte, Weil Im Schoenbuch, DE;
Walter Maeurer, Korntal-Muenchingen, DE;
Ulrich Doebler, Remseck, DE;
Hubert Stier, Vaihingen/Enz, DE;
Guenther Hohl, Stuttgart, DE;
Rene Deponte, Weil Im Schoenbuch, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A fuel injector for the direct injection of fuel into the combustion chamber of an internal combustion engine includes an actuator, which is encapsulated in a first sleeve and is sealed from an inner chamber of the fuel injector; a valve needle actuable by the actuator, which includes a valve-closure member cooperating with a valve-seat surface to form a sealing seat; and a locking spring, by which the valve needle is acted upon in such a manner that the valve-closure member is held in sealing contact at the valve-seat surface. An inflow-side end face of the first sleeve is dimensioned such that a linear deformation of the first sleeve, caused by the fuel pressure present at the inflow-side end face, is compensated by a linear deformation of the actuator and an activating piston extending the actuator.