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:
Sep. 16, 2014
Filed:
Oct. 12, 2007
Applicants:
Ross Dykstra Pursifull, Dearborn, MI (US);
Dequan Yu, Ann Arbor, MI (US);
Inventors:
Ross Dykstra Pursifull, Dearborn, MI (US);
Dequan Yu, Ann Arbor, MI (US);
Assignee:
Ford Global Technologies, LLC, Dearborn, MI (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02D 41/06 (2006.01); F02D 41/30 (2006.01); F02M 59/44 (2006.01); F02M 59/42 (2006.01); F02D 41/40 (2006.01); F02M 69/54 (2006.01);
U.S. Cl.
CPC ...
F02D 41/406 (2013.01); F02M 59/447 (2013.01); F02D 2200/0602 (2013.01); F02D 41/065 (2013.01); F02M 59/42 (2013.01); Y02T 10/44 (2013.01); F02M 69/54 (2013.01);
Abstract
A system and method for operating a fuel system that supplies fuel to a plurality of injectors in an internal combustion engine via a first pump and a second pump with a bypass circuit returning fuel from between the first and second pumps to a fuel tank, the pumps connected in series, is provided. The bypass circuit increases its restriction to increase injection pressure during selected conditions.