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:
Aug. 15, 2017
Filed:
Dec. 22, 2010
Applicants:
Wei LI, Troy, MI (US);
David B. Brown, Brighton, MI (US);
Chang H Kim, Rochester, MI (US);
Gongshin Qi, Troy, MI (US);
Steven J. Schmieg, Troy, MI (US);
Inventors:
Wei Li, Troy, MI (US);
David B. Brown, Brighton, MI (US);
Chang H Kim, Rochester, MI (US);
Gongshin Qi, Troy, MI (US);
Steven J. Schmieg, Troy, MI (US);
Assignee:
GM Global Technology Operations LLC, Detroit, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01N 3/10 (2006.01); F02D 41/02 (2006.01); B01D 53/94 (2006.01); F02D 41/14 (2006.01); F01N 13/00 (2010.01); F01N 3/08 (2006.01); F01N 3/20 (2006.01);
U.S. Cl.
CPC ...
F02D 41/0275 (2013.01); B01D 53/9422 (2013.01); F01N 13/009 (2014.06); F02D 41/1475 (2013.01); B01D 2255/402 (2013.01); B01D 2255/407 (2013.01); B01D 2255/9032 (2013.01); B01D 2255/9035 (2013.01); B01D 2255/91 (2013.01); F01N 3/0814 (2013.01); F01N 3/0842 (2013.01); F01N 3/106 (2013.01); F01N 3/2073 (2013.01); F01N 2510/0682 (2013.01);
Abstract
A method for removing NOfrom an oxygen-rich exhaust flow produced by a combustion source that is combusting a lean mixture of air and fuel may include passing the oxygen-rich exhaust flow through an exhaust aftertreatment system that includes a NOoxidation catalyst that includes perovskite oxide particles, a NOstorage catalyst, and a NOreduction catalyst.