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:
Oct. 11, 2005
Filed:
Nov. 12, 2002
Peter Boehland, Marbach, DE;
Michael Kurrle, Wendlingen, DE;
Joerg-peter Fischer, Deizisau, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
The fuel injection system having one high-pressure fuel pump and one fuel injection valve for each engine cylinder in which the pump piston defines a work chamber, which communicates with a pressure chamber of the fuel injection valve. A control valve controls connection of the pump work chamber with a relief chamber and having a second control valve controls a connection of a control pressure chamber, which communicates with the pump work chamber defined by a control piston with a relief chamber is controlled, and in which connection a throttle restriction is provided. A flow cross section of the connection of the control pressure chamber with the relief chamber is controlled as a function of the stroke of the control piston, such that with an increasing opening stroke of the injection valve member, a smaller flow cross section is uncovered by the control piston and at the maximum opening stroke of the injection valve member, the uncovered flow cross section is smaller than the flow cross section of the second throttle restriction.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile