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:
Mar. 20, 2018
Filed:
Apr. 27, 2016
Ford Global Technologies, Llc, Dearborn, MI (US);
Paul M. Laing, Canton, MI (US);
Carolyn Parks Hubbard, Canton, MI (US);
Jeffrey Scott Hepburn, Birmingham, MI (US);
Eva Thanasiu, Trenton, MI (US);
Giovanni Cavataio, Dearborn, MI (US);
Hungwen Jen, Troy, MI (US);
Mark John Jagner, Ypsilanti, MI (US);
Rachael Jean Harrington, Canton, MI (US);
Michael Daniel Shane, Detroit, MI (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
Phosphorus tolerant or resistant three-way catalysts (TWC) are disclosed. The TWC may include a substrate defining a plurality of channels. It may include front and rear washcoat portions overlying the substrate and having respective first and second washcoat loadings, the first washcoat loading being at most 2.0 g/inand less than the second washcoat loading. The front washcoat portion may include a catalyst material supported on a support material comprising a cerium oxide, such as ceria or CZO, or a pre-phosphated material, such as AlPO, or CePO. In one embodiment, the support material may comprise at least 85 wt. % of a cerium oxide or at least 85 wt. % of a phosphate-containing material. The front portion and the underlying substrate may comprise from 3 to 25 vol. % of the three-way catalyst or the front portion may overly up to an initial 15% of an axial length of the substrate.