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:
Apr. 14, 2015
Filed:
Apr. 05, 2012
Manuel Angel Gonzalez Delgado, Rochester Hills, MI (US);
Julian C. Tan, Vernon Hills, IL (US);
Joshua Clifford Bedford, Farmington Hills, MI (US);
Yong Miao, Ann Arbor, MI (US);
Naser I. Hineiti, Novi, MI (US);
Steven M. Yocum, Addison Township, MI (US);
Manuel Angel Gonzalez Delgado, Rochester Hills, MI (US);
Julian C. Tan, Vernon Hills, IL (US);
Joshua Clifford Bedford, Farmington Hills, MI (US);
Yong Miao, Ann Arbor, MI (US);
Naser I. Hineiti, Novi, MI (US);
Steven M. Yocum, Addison Township, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
In an exemplary embodiment, an internal combustion engine includes an oxidation catalyst configured to receive an exhaust gas flow from the internal combustion engine, a urea injector positioned downstream of the oxidation catalyst to inject a urea flow into the exhaust gas flow and a mixer positioned downstream of the urea injector to mix the exhaust gas flow and the urea flow to form a mixed exhaust gas and urea flow. The engine also includes a particulate filter and catalytic reduction assembly positioned downstream of the mixer to receive the mixed exhaust and urea flow from the mixer to form a treated exhaust gas flow and an exhaust gas recirculation system coupled to the particulate filter to receive a portion of the treated exhaust gas flow and recirculate the portion of the exhaust gas flow to be mixed with a fresh air flow for the internal combustion engine.