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:
May. 31, 2016

Filed:

Sep. 15, 2014
Applicant:

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

Inventors:

Andrew Morgan Myer, Greenwood, IL (US);

Stephen M. Holl, Columbus, IN (US);

Omkar Tendolkar, Columbus, IN (US);

John D. Crofts, Edinburgh, IN (US);

Samuel Johnson, Bloomington, IN (US);

Ambarish D. Khot, Pune, IN;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 53/94 (2006.01); F01N 3/20 (2006.01);
U.S. Cl.
CPC ...
F01N 3/208 (2013.01); B01D 53/9431 (2013.01); B01D 53/9495 (2013.01); B01D 2251/2062 (2013.01); F01N 2240/25 (2013.01); F01N 2610/02 (2013.01); F01N 2610/14 (2013.01); F01N 2610/148 (2013.01); F01N 2900/1404 (2013.01);
Abstract

A system including a reductant source storing reductant, an ammonia generation system configured to generate gaseous ammonia via cavitation, and a gaseous ammonia delivery device in fluid communication with the ammonia generation system and an exhaust system. The system may selectively activate the ammonia generation system responsive to a detected temperature of an exhaust gas of an exhaust system being equal to or below a predetermined value. The ammonia generation system may utilize ultrasonic cavitation or laser cavitation to generate gaseous ammonia to be delivered to the exhaust system responsive to the temperature of the exhaust gas of the exhaust system being equal to or below the predetermined value. If the temperature of the exhaust gas of the exhaust system above the predetermined value, a dosing module to dose reductant to the exhaust system may be activated.


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