METALLIC CARRIER FOR EXHAUST GAS PURIFYING CATALYST

Title:

METALLIC CARRIER FOR EXHAUST GAS PURIFYING CATALYST

Document Type and Number:

Japanese Patent JP3281240

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To provide the metallic carrier for an exhaust gas purifying catalyst using an elastic holding material which is not thermally expanded at high temps. and without a bearing pressure being exerted on a honeycomb body.
SOLUTION: A flat sheet 2a consisting of a heat-resistant metallic foil and a corrugated sheet 2b are placed on each other and spirally wound to obtain a honeycomb body 2, and the periphery of the honeycomb body 2 is sheathed with a fibrous elastic holding member 3 which is not thermally expanded even in a high-temp. atmosphere and having the inner and outer layers different in density to form the metallic carrier for an exhaust gas purifying catalyst. Especilly, the holding member 3 is preferably formed with a fibrous mat having an inner layer 3a low in density and an outer layer 3b high in density.

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Inventors:

Hitoshi Ohta
Masayuki Kasuya

Application Number:

JP32774395A

Publication Date:

May 13, 2002

Filing Date:

December 15, 1995

Export Citation:

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Assignee:

Nippon Steel Corporation

International Classes:

B01D53/86; B01J33/00; B01J35/04; B21D47/00; F01N3/28; (IPC1-7): B01J35/04; B01D53/86; B01J33/00; B21D47/00; F01N3/28

Attorney, Agent or Firm:

Hiroaki Tamura (1 outside)

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