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:
Feb. 23, 2016
Filed:
Jun. 18, 2014
Ford Global Technologies, Llc, Dearborn, MI (US);
Gang Guo, Ann Arbor, MI (US);
Giovanni Cavataio, Dearborn, MI (US);
Lifeng Xu, Northville, MI (US);
Manish Sharma, Inkster, MI (US);
Jeffrey Scott Hepburn, Birmingham, MI (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
A reverse flow hydrocarbon trap is provided that improves the conversion of hydrocarbons present in the exhaust gases of a vehicle to more environmentally benign compounds during cold engine starts. The trap includes a substrate having at least one exhaust gas passage therethrough, with the walls of the exhaust gas passage including a hydrocarbon trapping material and an oxidative catalyst. The substrate includes an inlet for hot exhaust gas from a vehicle engine and an outlet for the exhaust gas and further includes an inlet channel, an outlet channel, and an intermediate channel through which exhaust gas flows. The intermediate channel is oriented such that the flow of exhaust gas through the exhaust gas passage is reversed from the direction of flow in the inlet and outlet channels to improve the performance of the hydrocarbon trap.