Skip to Content
Find More Like This
Return to Search

Particulate filter

United States Patent Application

20070122319
A1
View the Complete Application at the US Patent & Trademark Office
A particulate filter and a method for reducing pollutants are provided. The particulate filter comprises at least one first piece, said first piece comprising non-linear channels, and at least one second piece adjacent to the at least one first piece. The particulate filter is configured such that either the at least one first piece or the at least one second piece comprise either sintered metal fibers or porous metallic foam. The method comprises the steps of providing a particulate filter, said filter comprising, at least one first piece, said first piece comprising non-linear channels and at least one second piece adjacent to the at least one first piece, catalyzing the particulate filter with a catalyst, passing exhaust stream through the filter, filtering at least some soot from the exhaust stream, and chemically converting at least some NOx from the exhaust stream with the catalyst.
Dacosta, Herbert F. (Peoria, IL), Habeger, Craig F. (Chillicothe, IL), Pollard, Michael J. (Peoria, IL)
11/ 479,723
June 30, 2006
U.S. GOVERNMENT RIGHTS [0002] This invention was made with government support under the terms of DE-FC26-02AL67974 awarded by the Department of Energy. The government may have certain rights in this invention.