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:
Dec. 02, 2014
Filed:
Aug. 20, 2007
Applicant:
Rijing Zhan, San Antonio, TX (US);
Inventor:
Rijing Zhan, San Antonio, TX (US);
Assignee:
Southwest Research Institute, San Antonio, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 3/00 (2006.01); B01D 53/94 (2006.01); F01N 3/20 (2006.01); F01N 3/36 (2006.01);
U.S. Cl.
CPC ...
B01D 53/9431 (2013.01); B01D 53/9454 (2013.01); F01N 3/2066 (2013.01); F01N 3/36 (2013.01); B01D 2251/2062 (2013.01); B01D 2251/2067 (2013.01); B01D 2251/208 (2013.01); B01D 2255/20723 (2013.01); B01D 2255/20769 (2013.01); B01D 2255/20776 (2013.01); B01D 2255/50 (2013.01); B01D 2257/402 (2013.01); F01N 2610/02 (2013.01); F01N 2610/03 (2013.01); F01N 2610/14 (2013.01); Y02C 20/10 (2013.01); Y02T 10/22 (2013.01); Y02T 10/24 (2013.01);
Abstract
The present invention relates to an apparatus and method for vaporizing a fluid to improve performance of a selective catalytic reduction catalyst. A vaporizer including a plurality of flow channels having an increased surface area may facilitate vaporization and mixing of the fluid in, e.g., an engine exhaust or gas containing nitrous oxides. The vaporizer may be located in an exhaust system downstream of a fluid injection site and upstream of a selective catalytic reduction catalyst. The exhaust discharged from the selective catalytic reduction catalyst may have a reduced concentration of nitrogen oxides.