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:
Jun. 12, 2007
Filed:
Jan. 24, 2005
Albert Nazipovich Chigapov, Aachen, DE;
George Wade Graham, Ann Arbor, MI (US);
Haren Sakaral Gandhi, West Bloomfield, MI (US);
Hung-wen Jen, Troy, MI (US);
Albert Nazipovich Chigapov, Aachen, DE;
George Wade Graham, Ann Arbor, MI (US);
Haren Sakaral Gandhi, West Bloomfield, MI (US);
Hung-Wen Jen, Troy, MI (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
The present invention involves an exhaust gas catalyst and method of manufacturing same. The invention provides for a cost-effective material which lowers the cold-start emissions from the exhaust of vehicles. The invention is a passive system which accelerates the light-off temperature of catalyst in a cost-effective fashion. The invention includes a method of manufacturing an exhaust gas catalyst capable of lowering cold-start emissions including the steps of providing an oxide mixture having praseodymium and cerium, doping about 0–10% weight zirconium and about 0–10% weight yttrium to the oxide mixture, adding about 0–2% weight metal including palladium, platinum, or rhodium to the oxide mixture, mixing gamma aluminum to the oxide mixture for washcoating and washcoating the oxide mixture onto a monolithic substrate.