Reinforced catalytic unit intended for purifying exhaust gases
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United States of America Patent
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-
Oct 8, 1991
Issued Date -
N/A
app pub date -
Feb 22, 1988
filing date -
Apr 29, 1986
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention relates to a reinforced catalytic unit intended for purifying exhaust gases. The unit is a reinforced helical catalytic unit formed from a corrugated foil band and a straight foil band. The foil bands are coated in advance with both a layer of support material and a layer of catalyst material and are placed one on top of the other. They are then secured to a central shaft around which the catalytic unit is formed by winding of the bands helically around the central shaft. Thereafter, end supports are secured to the ends of the shaft in such a way that they press somewhat to the inside of the unit and prevent movement of the foil bands in relation to each other.
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