Exhaust gas filter
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United States of America Patent
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Mar 24, 1987
Issued Date -
N/A
app pub date -
Jan 28, 1985
filing date -
Feb 16, 1982
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An exhaust gas filter for diesel particulates, comprising a row of a plurality of channels of honeycomb structure of porous sintered ceramic fiber composite sheet, the ceramic fiber composite sheet being produced by a paper-forming method from a slurry of alumino-silicate fiber and fire clay. The honeycomb structure of the ceramic fiber composite sheet is formed by stacking plane sheets and corrugated sheets one atop the other. The filter exhibits low pressure drop yet highly efficient operation by having a bulk density of the ceramic fiber composite sheet in the range of 0.1 g/cm.sup.3 to 0.8 g/cm.sup.3.
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