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:
May. 01, 2018
Applicant:
Caterpillar Inc., Deerfield, IL (US);
Inventor:
Robert D. Clayton, Jr., Peoria, IL (US);
Assignee:
Caterpillar Inc., Peoria, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 3/20 (2006.01); F01N 13/00 (2010.01); F02B 37/00 (2006.01); B01D 53/94 (2006.01);
U.S. Cl.
CPC ...
F01N 3/208 (2013.01); B01D 53/9418 (2013.01); B01D 53/9495 (2013.01); F01N 13/0093 (2014.06); F02B 37/00 (2013.01); F01N 2610/02 (2013.01); F01N 2900/08 (2013.01); F01N 2900/1602 (2013.01);
Abstract
A method and system for treating engine exhaust gas of an engine system is disclosed. The method includes generating ammonia from a urea supply, supplying the ammonia to the engine exhaust gas upstream of a catalyst device, and supplying urea to the engine exhaust gas downstream of the supplying of the ammonia, and downstream of the catalyst device.