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:
Sep. 26, 2017

Filed:

Aug. 08, 2016
Applicant:

Cummins Emission Solutions Inc., Columbus, IN (US);

Inventors:

Cary Henry, Helotes, TX (US);

Steven J. Kolhouse, Columbus, IN (US);

Assignee:

Cummins Emission Solutions Inc., Columbus, IN (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01N 3/00 (2006.01); F01N 3/10 (2006.01); F01N 3/02 (2006.01); F01N 3/20 (2006.01); B01D 53/94 (2006.01); F01N 3/035 (2006.01); F01N 3/021 (2006.01); F01N 3/28 (2006.01);
U.S. Cl.
CPC ...
F01N 3/208 (2013.01); B01D 53/9495 (2013.01); F01N 3/021 (2013.01); F01N 3/035 (2013.01); F01N 3/105 (2013.01); F01N 3/2896 (2013.01); F01N 2560/026 (2013.01); F01N 2560/06 (2013.01); F01N 2570/14 (2013.01); F01N 2570/145 (2013.01); F01N 2590/08 (2013.01); F01N 2610/02 (2013.01); F01N 2610/06 (2013.01); F01N 2610/10 (2013.01); F01N 2610/1406 (2013.01); F01N 2900/1404 (2013.01); F01N 2900/1602 (2013.01); Y02C 20/10 (2013.01); Y02T 10/24 (2013.01);
Abstract

Reductant delivery systems are disclosed that include a dry reductant source and a liquid reductant source which are operable to selectively provide gaseous reductant and liquid reductant to an exhaust aftertreatment system for treatment and reduction of NOx emissions. The gaseous reductant is provided to the exhaust aftertreatment system for treatment of NOx emissions under a first temperature condition associated with the exhaust system and the liquid reductant for treatment of NOx emissions under a second temperature condition associated with the exhaust system.


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