Exhaust filter element and exhaust gas-treating apparatus
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United States of America Patent
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Mar 16, 1993
Issued Date -
N/A
app pub date -
Mar 19, 1992
filing date -
Feb 23, 1990
priority date (Note) -
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Abstract
This exhaust filter element has a corrugated honeycomb structure made of the porous fibrous ceramics, of which cells are alternately plugged; and is made of material having a higher dielectric factor at an inflow side or an outer circumference portion than at an inside portion. The filter element can be regenerated by irradiation of micro wave after it is soiled by particulates in an exhausted gas.
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