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:
May. 22, 2007
Filed:
Jun. 30, 2003
Applicants:
Hans-christoph Magel, Pfullingen, DE;
Gerhard Geyer, Stuttgart, DE;
Inventors:
Hans-Christoph Magel, Pfullingen, DE;
Gerhard Geyer, Stuttgart, DE;
Assignee:
Robert Bosch GmbH, Stuttgart, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02M 37/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A fuel injection system for an internal combustion engine, having a fuel injector supplied with fuel from a high-pressure fuel source and including an injection valve member for opening or closing injection openings and a low-pressure circuit with a prefeed pump which pumps fuel from a fuel tank. Partial return fuel quantities, depressurized to the prefeed pressure of the prefeed pump, are delivered to the low-pressure circuit by pressure boosters or by fuel injectors inside an infeed portion via returns.