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. 13, 2019
Filed:
Jan. 20, 2016
Applicant:
Deere & Company, Moline, IL (US);
Inventors:
Richard E. Winsor, Waterloo, IA (US);
Jacob M. Rosswurm, Raymond, IA (US);
Assignee:
DEERE & COMPANY, Moline, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 3/00 (2006.01); F01N 3/20 (2006.01); F01N 3/035 (2006.01); F01N 3/10 (2006.01); F02D 41/02 (2006.01); F02D 41/14 (2006.01); F02D 35/00 (2006.01);
U.S. Cl.
CPC ...
F01N 3/2066 (2013.01); F01N 3/035 (2013.01); F01N 3/103 (2013.01); F02D 35/0092 (2013.01); F02D 41/024 (2013.01); F02D 41/1446 (2013.01); F01N 2560/06 (2013.01); F01N 2570/14 (2013.01); F01N 2610/02 (2013.01); F02D 2200/0802 (2013.01); F02D 2250/32 (2013.01);
Abstract
A method for managing temperatures in an aftertreatment system positioned downstream of an engine. The method includes (1) combusting a rich air/diesel mixture in a cylinder of the engine, and then (2) combusting a lean air/diesel mixture in the cylinder, in the next combustion event in the cylinder, after combusting the rich air/diesel mixture therein. The method further includes repeating steps (1) and (2) in the cylinder and basing a frequency thereof on a desired aftertreatment system temperature.