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:
Aug. 18, 2020
Filed:
Oct. 20, 2014
Applicant:
Ford Global Technologies, Llc, Dearborn, MI (US);
Inventor:
Todd Anthony Rumpsa, Saline, MI (US);
Assignee:
Ford Global Technologies, LLC, Dearborn, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02M 63/02 (2006.01); F02D 17/02 (2006.01); F02D 41/34 (2006.01); F02D 41/00 (2006.01); F02D 41/12 (2006.01);
U.S. Cl.
CPC ...
F02D 17/02 (2013.01); F02D 41/0087 (2013.01); F02D 41/345 (2013.01); F02D 41/126 (2013.01); F02D 2200/021 (2013.01);
Abstract
Systems and methods for reactivating cylinders of an engine that have been temporarily deactivated to conserve fuel are presented. The systems and methods adjust fuel injection quantity and timing of direct fuel injectors to reduce particulate emissions that may form in cylinders that are being reactivated due to reduced piston and combustion chamber temperatures that may occur in newly reactivated cylinders.