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. 12, 2014
Filed:
Nov. 14, 2007
Owen Herman Bailey, Lake Orion, MI (US);
Robert Reginald Loucks, LaSalle, CA;
Christopher Simon Owens, Melvindale, MI (US);
Owen Herman Bailey, Lake Orion, MI (US);
Robert Reginald Loucks, LaSalle, CA;
Christopher Simon Owens, Melvindale, MI (US);
Umicore Autocat USA Inc., Auburn Hills, MI (US);
Abstract
An exhaust system for treating an exhaust gas composition having NOin a first NOconcentration. The exhaust system includes a first catalyst that contacts a first portion of the exhaust gas composition converting it into a first oxidized exhaust mixture that includes NOin a second NOconcentration that is greater than the first NOconcentration. The system further includes a bypass that receives a second portion of the exhaust gas composition and a recombination section positioned downstream of the first catalyst. The first oxidized exhaust mixture is combined with the second portion of the exhaust gas composition to produce a first combined exhaust gas mixture. A second catalyst converts the first combined exhaust gas mixture to a second combined exhaust gas mixture having a third NOconcentration that is less than the second NOconcentration. The method used by the exhaust system is also provided.