Power plants – Internal combustion engine with treatment or handling of... – By means producing a chemical reaction of a component of the...
Patent
1989-06-16
1990-12-11
Hart, Douglas
Power plants
Internal combustion engine with treatment or handling of...
By means producing a chemical reaction of a component of the...
422180, F01N 328
Patent
active
049761030
ABSTRACT:
A metal-made carrier body is provided for carrying thereon an exhaust gas cleaning catalyst. The carrier body is formed by superposing a sheet-like metal band made of a thin metal sheet and a corrugated band made from another thin metal sheet one over the other in a contiguous relation into a multi-layered composite body defining many network-patterned gas flow passages along a central axis thereof and then enclosing the multi-layered composite body within a cylindrical metal casing. The cylindrical metal casing has a double-layer structure composed of an inner portion made of a metal material having a coefficient of thermal expansion similar to that of the constituent members of the multi-layered composite body and an outer portion made of another metal material having greater heat- and corrosion-resistance than the metal material of the inner portion.
REFERENCES:
patent: 4282186 (1981-08-01), Nonnenmann
patent: 4348360 (1982-09-01), Chang
patent: 4863700 (1989-09-01), Ten Eyck
patent: 4925634 (1990-05-01), Yokokoji
Serizawa Haruo
Takikawa Kazunori
Hart Douglas
Usui Kokusai Sangyo Kabushiki Kaisha
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