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. 30, 1998
Filed:
Sep. 16, 1996
Jeffrey Scott Hepburn, Dearborn, MI (US);
Hung-Wen Jen, Troy, MI (US);
Harendra Sakarlal Gandhi, Farmington Hills, MI (US);
Klaus Otto, Livonia, MI (US);
Ford Global Technologies, Inc., Dearborn, MI (US);
Abstract
The invention is an automotive catalyst system for treating internal combustion engine exhaust gases. The system comprises a hybrid system of hydrocarbon trapping material and palladium based three-way catalyst material, the hydrocarbon trapping material being capable of adsorbing hydrocarbons present in said internal combustion exhaust gases and substantially maintaining adsorbance of the adsorbed hydrocarbons until after the palladium based three-way catalyst material reaches a temperature at which it is capable of oxidizing the hydrocarbons. The palladium based three-way catalyst is carried on a substrate, which may be the trapping material, in an amount of between about 100-500 g palladium/ft.sup.3 of substrate.