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:
Dec. 06, 2011

Filed:

Jun. 25, 2008
Applicants:

Arvind V. Harinath, Columbus, IN (US);

Bryan E. Blackwell, Franklin, IN (US);

Pradeep Prasad, Columbus, IN (US);

Z. Gerald Liu, Madison, WI (US);

Inventors:

Arvind V. Harinath, Columbus, IN (US);

Bryan E. Blackwell, Franklin, IN (US);

Pradeep Prasad, Columbus, IN (US);

Z. Gerald Liu, Madison, WI (US);

Assignee:

Cummins Filtration IP, Inc., Minneapolis, MN (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 50/00 (2006.01); F01N 5/00 (2006.01); B21D 51/16 (2006.01);
U.S. Cl.
CPC ...
Abstract

Described are apparatuses, systems, and methods for treating exhaust. The described apparatus and systems typically include a catalytic device for converting aqueous urea to ammonia. The catalytic device may include a pyrolysis catalyst and a hydrolysis catalyst for converting aqueous urea to ammonia. The catalytic device typically includes an upstream face that is positioned at an angle relative to exhaust flow when the device is positioned in a selective catalytic reduction (SCR) system.


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