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:
May. 27, 2003
Filed:
Feb. 02, 2000
Applicant:
Inventors:
Shiyao Li, Dallen, CN;
Jun (John) Li, Carlton, MI (US);
Ronald G. Hurley, Farmington Hills, MI (US);
Assignee:
Ford Global Technologies LLC, Dearborn, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J 8/02 ; B01J 8/00 ; B01J 2/300 ; C01B 2/100 ;
U.S. Cl.
CPC ...
B01J 8/02 ; B01J 8/00 ; B01J 2/300 ; C01B 2/100 ;
Abstract
The invention is a method of manufacturing a three-way catalyst and the catalyst as well as its use for treating exhaust gas generated by a gasoline internal combustion engine. The catalyst composition comprises a mixture of particles of three different materials. More specifically, it includes a mixture of calcined ceria/zirconia particles impregnated with platinum together with palladium, other calcined ceria/zirconia particles impregnated with only rhodium precious metal, and alumina particles not impregnated with precious metal.