CATALYTIC BURNER SYSTEM FOR DPF REGENERATION
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United States of America Patent
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Issued Date -
Jul 31, 2014
app pub date -
Sep 2, 2011
filing date -
Sep 2, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A system and method of effective regeneration of a diesel particulate filter used in the exhaust system of a diesel engine during low engine operating temperatures, is disclosed. Generally speaking, a catalytic burner system and method used in filter regeneration on a diesel engine comprises a burner diesel oxidation catalyst (BDOC) coupled to an exhaust flow of the diesel engine, a mixer fluidly coupled to the BDOC, a diesel oxidation catalyst (DOC) fluidly coupled to the mixer, and a diesel particulate filter (DPF) fluidly coupled to the DOC, wherein the BDOC directs the exhaust flow through the mixer, the DOC and the DPF during a regeneration cycle of the DPF under low engine temperature operating conditions.
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