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. 29, 2004
Filed:
Oct. 01, 2001
Dieter Holz, Affalterbach, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A method for adjusting the flow quantity in a fuel injector, that has an excitable actuation element, a valve-closure member that can be moved axially along a valve longitudinal axis, the valve-closure member, for the purpose of opening and closing the valve, cooperating with a fixed valve seat that is configured on a valve seat element, and a multilayer, or multiple-disk, perforated disk that is arranged downstream of the valve seat, is characterized by the fact that, in a first method step, the discharged fuel quantity of the opened fuel injector is measured and, in a second method step, a lower base layer of the perforated disk is deformed in the direction of the valve seat into a vacant flow-cross-section of the layer situated on top of it and, as a result, the vacant flow-cross-section within the perforated disk is changed until the actual quantity discharged corresponds to the predetermined setpoint quantity.