Diesel particulate filter with zoned resistive heater
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United States of America Patent
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Mar 8, 2011
Grant Date -
Jul 23, 2009
app pub date -
Mar 20, 2008
filing date -
Jan 18, 2008
priority date (Note) -
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Abstract
A diesel particulate filter assembly comprises a diesel particulate filter (DPF) and a heater assembly. The DPF filters a particulate from exhaust produced by an engine. The heater assembly has a first metallic layer that is applied to the DPF, a resistive layer that is applied to the first metallic layer, and a second metallic layer that is applied to the resistive layer. The second metallic layer is etched to form a plurality of zones.
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