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:
Nov. 04, 2014
Filed:
Dec. 15, 2009
Carolyn Parks Hubbard, Canton, MI (US);
Robert Walter Mccabe, Novi, MI (US);
Eva Thanasiu, Trenton, MI (US);
Jeffrey Scott Hepburn, Birmingham, MI (US);
Helmut Hans Ruhland, Eschweiler, DE;
Moritz Klaus Springer, Hagen, DE;
Thomas Lorenz, Cologne, DE;
Georg Louven, Neuwied, DE;
David Karl Bidner, Livonia, MI (US);
Carolyn Parks Hubbard, Canton, MI (US);
Robert Walter McCabe, Novi, MI (US);
Eva Thanasiu, Trenton, MI (US);
Jeffrey Scott Hepburn, Birmingham, MI (US);
Helmut Hans Ruhland, Eschweiler, DE;
Moritz Klaus Springer, Hagen, DE;
Thomas Lorenz, Cologne, DE;
Georg Louven, Neuwied, DE;
David Karl Bidner, Livonia, MI (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
A system for filtering and oxidizing particulate matter produced by a gasoline direct injection engine is disclosed. In one embodiment, engine cylinder air-fuel is adjusted to allow soot to oxidize at an upstream particulate filter while exhaust gases are efficiently processed in a downstream catalyst.