Metal-made carrier body for exhaust gas cleaning catalyst

Details Metal-made carrier body for exhaust gas cleaning catalyst Metal-made carrier body for exhaust gas cleaning catalyst

1988-12-23

1989-08-15

Zimmerman, John J.

Stock material or miscellaneous articles

All metal or with adjacent metals

Helical or with helical component

428593, 428603, 502439, 502527, B01J 3504, F01N 328

Patent

active

048574139

ABSTRACT:
A metal-made carrier body is provided for an exhaust gas cleaning catalyst. The carrier body includes a cylindrical metal casing and a metal-made multi-layered composite body. The composite body has been obtained by superposing one over the ther at least one planar metal band made of a thin metal sheet and at least one corrugated metal band made of another thin metal sheet and then rolling both the bands together into a spiral form, so that the composite body defines many network-patterned gas flow passages along the central axis thereof. The composite body is enclosed within the metal casing. A gas-permeable insert is centrally and axially embedded within the multi-layered composite body of the planar metal band and the corrugated metal band.

REFERENCES:
patent: 2761203 (1956-09-01), De Witt
patent: 4282186 (1981-08-01), Nonnenmanor et al.
patent: 4374803 (1983-02-01), Fratzer et al.
patent: 4598063 (1986-07-01), Refallick
patent: 4600562 (1986-07-01), Vink et al.
patent: 4719680 (1988-01-01), Cyron

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