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:
Apr. 18, 2017
Filed:
Jul. 18, 2012
Applicants:
Aleksey Yezerets, Columbus, IN (US);
Z. Gerald Liu, Madison, WI (US);
Krishna Kamasamudram, Columbus, IN (US);
Neal W. Currier, 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:
Assistant Examiner:
Int. Cl.
CPC ...
B01D 53/56 (2006.01); B01D 53/94 (2006.01); F01N 3/10 (2006.01); F01N 11/00 (2006.01); F01N 3/021 (2006.01); F01N 3/035 (2006.01); F01N 13/00 (2010.01); F01N 3/20 (2006.01); F01N 3/36 (2006.01);
U.S. Cl.
CPC ...
B01D 53/9495 (2013.01); B01D 53/9436 (2013.01); F01N 3/021 (2013.01); F01N 3/035 (2013.01); F01N 3/106 (2013.01); F01N 11/002 (2013.01); F01N 13/009 (2014.06); B01D 53/944 (2013.01); B01D 53/9418 (2013.01); B01D 2255/2022 (2013.01); B01D 2255/2027 (2013.01); B01D 2255/2092 (2013.01); B01D 2255/20723 (2013.01); B01D 2255/904 (2013.01); B01D 2258/012 (2013.01); F01N 3/208 (2013.01); F01N 3/36 (2013.01); F01N 2560/08 (2013.01); F01N 2900/1616 (2013.01); Y02T 10/24 (2013.01); Y02T 10/47 (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.