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:
Dec. 08, 2020
Filed:
Jul. 27, 2018
Applicant:
Ford Global Technologies, Llc, Dearborn, MI (US);
Inventors:
Justin Trzeciak, Riverview, MI (US);
Joseph Norman Ulrey, St. Joseph, MI (US);
Ross Dykstra Pursifull, Dearborn, MI (US);
Assignee:
Ford Global Technologies, LLC, Dearborn, MI (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02D 41/30 (2006.01); F02M 37/08 (2006.01); F02D 41/14 (2006.01); F02D 41/20 (2006.01); F02M 69/46 (2006.01); F02D 41/38 (2006.01); F02M 63/02 (2006.01); F02D 41/22 (2006.01);
U.S. Cl.
CPC ...
F02D 41/3082 (2013.01); F02D 41/3854 (2013.01); F02M 37/08 (2013.01); F02M 63/0225 (2013.01); F02M 69/465 (2013.01); F02D 41/221 (2013.01); F02D 2041/1412 (2013.01); F02D 2041/2051 (2013.01); F02D 2200/0604 (2013.01);
Abstract
Methods and systems are provided for operating a lift pump of an engine fuel system. In one example, a method may comprise predicting when a fuel rail pressure will decrease below a threshold assuming that a lift pump remains off. The method may further comprise powering on the lift pump before the fuel rail pressure decreases below to the threshold to prevent fuel rail pressure from decreasing below the threshold.