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. 30, 2014
Filed:
Sep. 23, 2011
Joseph A. Worthington, Greenwood, IN (US);
Norman C. Blizard, Columbus, IN (US);
David P. Genter, Columbus, IN (US);
Gregory S. Franks, Edinburgh, IN (US);
Michael F. Mattern, Columbus, IN (US);
Thomas O. Hahn, Columbus, IN (US);
James L. Walls, Cookeville, TN (US);
Edward N. Linen, Columbus, IN (US);
Joseph A. Worthington, Greenwood, IN (US);
Norman C. Blizard, Columbus, IN (US);
David P. Genter, Columbus, IN (US);
Gregory S. Franks, Edinburgh, IN (US);
Michael F. Mattern, Columbus, IN (US);
Thomas O. Hahn, Columbus, IN (US);
James L. Walls, Cookeville, TN (US);
Edward N. Linen, Columbus, IN (US);
Cummins Intellectual Property, Inc., Minneapolis, MA (US);
Abstract
A fuel supply system and method of controlling fuel flow through a supply system is provided including a variable flow, i.e. speed, electric fuel transfer pump and a control system adapted to variably control the transfer pump based on fuel demand of the engine. The system provides improved transient response by providing the transfer pump with a feed forward speed/flow command based on engine fueling demand determined based on engine operating conditions. The transfer pump is controlled based on fuel demand not necessarily achieved yet by the high pressure pump and injectors. Therefore, this system controls the EFTP substantially simultaneously with controlling the high pressure pump and injectors to optimize fuel flow through the entire system ensuring the minimum required fuel flow is passing through the second the fuel filtration system, hence maximizing steady state fuel filtration efficiency, and minimizing surge effects on filtration efficiency.