Diesel Particulate Fllter Having Three Way Catalyst Coating
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United States of America Patent
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Issued Date -
Jul 4, 2013
app pub date -
Nov 13, 2012
filing date -
Nov 11, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Apparatuses described herein relate to a diesel particulate filter for use in a diesel engine exhaust system. The diesel particulate filter comprises a particulate filter having a plurality of filter flow channels configured to remove diesel exhaust particulates from a diesel exhaust stream. The plurality of filter flow channels are disposed for contact with the diesel exhaust stream and are coated with a three-way catalyst coating. The three-way catalyst coating may be configured to assist in soot oxidation during regeneration events as well as for the reduction of NOx from the exhaust stream. The three-way catalyst coating may replace, or be used in addition to, a three-way catalyst of a diesel oxidation catalyst.
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