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:
Jun. 28, 2011
Filed:
Oct. 26, 2007
Joseph Norman Ulrey, Dearborn, MI (US);
Eric Matthew Storhok, Ann Arbor, MI (US);
Ross Dykstra Pursifull, Dearborn, MI (US);
Frank Gonzales, Jr., Dearborn, MI (US);
Joseph Norman Ulrey, Dearborn, MI (US);
Eric Matthew Storhok, Ann Arbor, MI (US);
Ross Dykstra Pursifull, Dearborn, MI (US);
Frank Gonzales, Jr., Dearborn, MI (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
A method of operating a fuel delivery system for an internal combustion engine is described. The method may include, after or during engine shutdown, and during a fuel system cool down, activating the first pump; and varying the activation of the first pump responsive to temperature to maintain a higher pressure for high temperatures. By utilizing the pump to generate increased pressure at an appropriate condition during the cool down, for example, the pressures in the system can be managed to reduce the likelihood of fuel migrating to the rail.