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:
Jan. 05, 2016
Filed:
Oct. 24, 2013
Applicant:
Cummins Inc., Columbus, IN (US);
Inventors:
Richard J. Ancimer, Columbus, IN (US);
Vivek A. Sujan, Columbus, IN (US);
Ashwin Vyas, Columbus, IN (US);
Guoqiang Li, Indianapolis, IN (US);
Fan Zeng, Columbus, IN (US);
Assignee:
Cummins Inc., Columbus, IN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 3/00 (2006.01); F01N 3/021 (2006.01); F01N 3/10 (2006.01); F01N 3/20 (2006.01); F01N 9/00 (2006.01); F02D 41/02 (2006.01); F02D 41/00 (2006.01);
U.S. Cl.
CPC ...
F01N 3/021 (2013.01); F01N 3/106 (2013.01); F01N 3/2033 (2013.01); F01N 3/2066 (2013.01); F01N 9/00 (2013.01); F02D 41/0055 (2013.01); F02D 41/025 (2013.01); F01N 2900/0411 (2013.01); F01N 2900/08 (2013.01); F01N 2900/1602 (2013.01); F02D 2200/0802 (2013.01);
Abstract
An exhaust aftertreatment system includes an oxidation catalyst and a selective catalytic reduction (SCR) catalyst disposed in an exhaust stream of an internal combustion engine. A stay warm thermal management strategy is employed after warm-up of the aftertreatment system is complete to maintain the aftertreatment system above a temperature providing a desired performance threshold of one or more components of the aftertreatment system, such as the oxidation catalyst or the SCR catalyst.