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:
Nov. 14, 2023
Filed:
May. 27, 2022
Applicant:
Deere & Company, Moline, IL (US);
Inventors:
Danan Dou, Cedar Falls, IA (US);
Eric J. Hruby, Waterloo, IA (US);
Bryan T. Geisick, Cedar Falls, IA (US);
Assignee:
Deere & Company, Moline, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 3/20 (2006.01); F01N 3/10 (2006.01); F01N 3/035 (2006.01);
U.S. Cl.
CPC ...
F01N 3/2066 (2013.01); F01N 3/035 (2013.01); F01N 3/106 (2013.01); F01N 3/108 (2013.01); F01N 3/2013 (2013.01); F01N 3/2033 (2013.01); F01N 2240/38 (2013.01); F01N 2250/02 (2013.01); F01N 2570/14 (2013.01); F01N 2570/18 (2013.01); F01N 2590/08 (2013.01);
Abstract
A method of treating exhaust gas from an internal combustion engine as the exhaust gas passes through an exhaust gas pathway includes injecting reductant into the exhaust gas pathway with a reductant injector, filtering particulate matter from the exhaust gas with a first treatment element located downstream of the reductant injector, oxidizing soot on the first treatment element with ozone, and converting nitrogen oxides (NOx) from the exhaust gas with a second treatment element located downstream of the reductant injector.