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:
Jan. 10, 2012
Filed:
Nov. 06, 2008
Applicants:
David J. Cleary, Shanghai, CN;
Wei LI, Troy, MI (US);
Inventors:
David J. Cleary, Shanghai, CN;
Wei Li, Troy, MI (US);
Assignee:
GM Global Technology Operations LLC, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method and system for managing an exhaust gas feedstream from an internal combustion engine operative lean of stoichiometry includes steps and apparatus for diverting exhaust around a three-way catalytic converter during NOx adsorber regeneration thereby increasing reductants available in the NOx adsorber to react with the adsorbed NOx.