Diesel particulate filter with zoned resistive heater

Details Diesel particulate filter with zoned resistive heater Diesel particulate filter with zoned resistive heater

2011-03-08

2011-03-08

Griffin, Walter D (Department: 1774)

Gas separation

With nonliquid cleaning means for separating media

With heating or cooling means

C055S522000, C055S523000, C055S524000, C422S169000, C422S170000, C422S171000, C422S172000, C422S177000, C422S178000, C422S179000, C422S180000, C422S181000, C422S182000

Reexamination Certificate

active

07901475

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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U.S. Appl. No. 11/233,450, filed Nov. 22, 2005, Weldon Williamson.

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