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:
Jul. 09, 2013
Filed:
May. 19, 2011
Chang H Kim, Rochester, MI (US);
Iljeong Heo, Seogwipo-Si, KR;
SE H. OH, Troy, MI (US);
Wei LI, Troy, MI (US);
Michelle H Schmid, Berkley, MI (US);
Chang H Kim, Rochester, MI (US);
Iljeong Heo, Seogwipo-Si, KR;
Se H. Oh, Troy, MI (US);
Wei Li, Troy, MI (US);
Michelle H Schmid, Berkley, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
The oxidation of carbon monoxide (CO) and hydrocarbons (HC) in an oxygen-containing gas stream, such as the exhaust stream from a diesel engine, or other lean-burn engine, may be catalyzed using a combination of mixed oxide particles of cerium, zirconium and copper, and discrete particles of an alumina-supported platinum group metal catalyst. The catalyzed oxidation of CO and HC by this combination of oxidation catalyst particles is effective at temperatures below 300° C.