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. 01, 2012
Filed:
Jul. 31, 2009
Gopal Krishna Chamarthi, Farmington Hills, MI (US);
Brien Lloyd Fulton, West Bloomfield, MI (US);
Christopher Oberski, Plymouth, MI (US);
Peter Mitchell Lyon, Birmingham, MI (US);
Gopal Krishna Chamarthi, Farmington Hills, MI (US);
Brien Lloyd Fulton, West Bloomfield, MI (US);
Christopher Oberski, Plymouth, MI (US);
Peter Mitchell Lyon, Birmingham, MI (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
Methods and systems are provided for operating a fuel system in an engine, the fuel system including a supply pump for delivering fuel to the fuel system and pressurizing fuel received from a feed pump, a fuel tank, a fuel filter for filtering fuel, a fuel rail, and a fuel injector. One example method comprises, during an engine cold-start, operating the supply pump, and adjusting a supply pump operation mode between at least a pressure-controlled mode and a volume-controlled mode based on a fuel temperature and pressure.