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. 28, 2018
Filed:
Mar. 17, 2017
Applicant:
Cummins Inc., Columbus, IN (US);
Inventors:
Aleksey Yezerets, Columbus, IN (US);
Z. Gerald Liu, Madison, WI (US);
Krishna Kamasamudram, Columbus, IN (US);
Neal W. Currier, Columbus, IN (US);
Assignee:
Cummins Inc., Columbus, IN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 53/56 (2006.01); G01N 15/08 (2006.01); B01D 53/94 (2006.01); B01D 46/42 (2006.01); B01D 46/00 (2006.01); B01J 35/04 (2006.01); B01J 23/22 (2006.01); G01L 19/08 (2006.01); F01N 3/20 (2006.01); F01N 3/021 (2006.01); F01N 11/00 (2006.01);
U.S. Cl.
CPC ...
G01N 15/0826 (2013.01); B01D 46/0086 (2013.01); B01D 46/42 (2013.01); B01D 53/9418 (2013.01); B01D 53/9436 (2013.01); B01D 53/9445 (2013.01); B01D 53/9477 (2013.01); B01D 53/9495 (2013.01); B01J 23/22 (2013.01); B01J 35/04 (2013.01); F01N 3/021 (2013.01); F01N 3/2066 (2013.01); F01N 11/002 (2013.01); G01L 19/08 (2013.01); B01D 2255/20723 (2013.01); F01N 2250/02 (2013.01); F01N 2370/02 (2013.01); F01N 2610/02 (2013.01); G01N 2015/084 (2013.01);
Abstract
System and methods for reducing secondary emissions in an exhaust stream from an internal combustion engine are disclosed. The systems and methods include a filtration device positioned downstream from an SCR catalyst of an aftertreatment system disposed in the exhaust system. The filtration device can also be used for particulate filter diagnostics and for treatment of ammonia slip.