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. 18, 2009
Filed:
Apr. 15, 2005
Hans-peter Scheurer, Marbach, DE;
Roger Busch, Esslingen, DE;
Hans-Peter Scheurer, Marbach, DE;
Roger Busch, Esslingen, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A fuel injection system having a high-pressure accumulator, in which fuel may be stored at high pressure, at least one fuel injector via which the fuel located in the high-pressure accumulator may be injected into the combustion chamber of an internal combustion engine being connectable to the high-pressure accumulator. A high-pressure pump draws in fuel out of a leak fuel area, compresses it, and supplies it to the high-pressure accumulator, so that a high fuel pressure is built up therein during operation of the high-pressure pump. A return line having a regulating valve is implemented between the leak fuel area and the high-pressure accumulator, the regulating valve allowing a fuel flow from the leak fuel area into the high-pressure accumulator when the high-pressure pump is shut down.