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:
Mar. 20, 2012
Filed:
Sep. 21, 2004
Applicants:
KE Liu, Margarita, CA (US);
John G. Buglass, Glastonbury, CT (US);
Inventors:
Ke Liu, Margarita, CA (US);
John G. Buglass, Glastonbury, CT (US);
Assignee:
Shell Oil Company, Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01N 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A single valve () directs engine exhaust () toward alternative NOx traps () which are adjacent to either diesel particulate filters () or low temperature water gas shift catalysts (). Syngas is either provided from a source () or by in-line catalytic partial oxidizers () which may have diesel oxidation catalysts ahead of them in the flow and which receive fuel from the engine fuel source () through nozzles ().