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:
Aug. 11, 2015

Filed:

Dec. 16, 2009
Applicants:

Nicholas Birkby, Preston, GB;

Navin Khadiya, Columbus, IN (US);

Wilbur H. Crawley, Ii, Nashville, IN (US);

Inventors:

Nicholas Birkby, Preston, GB;

Navin Khadiya, Columbus, IN (US);

Wilbur H. Crawley, II, Nashville, IN (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 3/00 (2006.01); F01N 3/08 (2006.01); F01N 3/025 (2006.01); F01N 9/00 (2006.01);
U.S. Cl.
CPC ...
F01N 3/0807 (2013.01); F01N 3/025 (2013.01); F01N 9/00 (2013.01); F01N 2240/14 (2013.01); Y02T 10/47 (2013.01);
Abstract

A catalyst is positioned downstream of a thermal enhancer, such as a fuel-fired burner for example. A doser injects hydrocarbons into the thermal enhancer to maintain exhaust gas temperatures such that the catalyst is in an active condition and to raise exhaust gas temperatures to a level such that a diesel particulate filter can be regenerated.


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