Regeneratable particle filter for waste gases
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United States of America Patent
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-
Dec 4, 1990
Grant Date -
N/A
app pub date -
Nov 14, 1989
filing date -
Nov 14, 1988
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The particle filter for waste gases includes a porous filter body traversed by honeycomb-form channels and resistance heating elements for burning-off of soot particles. The resistance heating elements are in a zone adjacent an entry end of the filter body and include perforated strips of sheet metal including longitudinal strips which are bent into U-shaped heat conductors. Cross strips create, on destruction of individual heat conductors, an electrical current detour path. The resistance heating elements are inexpensive to produce and easy to install.
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