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.

Date of Patent:
Nov. 10, 2020

Filed:

Dec. 08, 2018
Applicant:

Deere & Company, Moline, IL (US);

Inventor:

Shyan-Cherng Huang, Cedar Falls, IA (US);

Assignee:

DEERE & COMPANY, Moline, IL (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 53/94 (2006.01); F01N 3/02 (2006.01); F01N 3/035 (2006.01); F01N 3/08 (2006.01); F01N 3/20 (2006.01); F01N 13/00 (2010.01); F01N 3/023 (2006.01);
U.S. Cl.
CPC ...
B01D 53/9418 (2013.01); F01N 3/0231 (2013.01); F01N 3/035 (2013.01); F01N 3/0842 (2013.01); F01N 3/2066 (2013.01); F01N 13/009 (2014.06); F01N 2240/28 (2013.01);
Abstract

An exhaust gas treatment system for an internal combustion engine includes an exhaust gas pathway configured to receive exhaust gas from the internal combustion engine and a non-thermal plasma generator positioned in the exhaust gas pathway. The non-thermal plasma generator is configured to increase a proportion of nitrogen dioxide in the exhaust gas. The system also includes a first treatment element positioned in the exhaust gas pathway downstream of the non-thermal plasma generator and a second treatment element positioned in the exhaust gas pathway downstream of the first treatment element. At least one of the first treatment element or the second treatment element includes a combined selective catalytic reduction and diesel particulate filter (SCR+F) element.


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