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:
Oct. 13, 2015
Filed:
Dec. 01, 2011
Brien Lloyd Fulton, West Bloomfield, MI (US);
Brad Allen Brown, Leonard, MI (US);
Carlos Armesto, Canton, MI (US);
Larry Castleberry, Detroit, MI (US);
Scott J. Szymusiak, Canton, MI (US);
Brien Lloyd Fulton, West Bloomfield, MI (US);
Brad Allen Brown, Leonard, MI (US);
Carlos Armesto, Canton, MI (US);
Larry Castleberry, Detroit, MI (US);
Scott J. Szymusiak, Canton, MI (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
A fuel system for an engine is provided herein. According to one embodiment, the fuel system includes a fuel supply coupled to a low pressure fuel pump, the low pressure fuel pump coupled to a high pressure fuel pump to provide fuel to a fuel rail. Further, the fuel system includes a plurality of injectors coupled to the fuel rail to provide fuel to a plurality of engine cylinders. Further still, the fuel system includes a first fuel return line coupling the fuel rail to the fuel supply and a thermal recirculation valve, the thermal recirculation valve further coupled to a low pressure pump intake line; a second fuel return line coupling the high pressure fuel pump to the first fuel return line; and a third fuel return line coupling the plurality of injectors to a high pressure pump intake line.