Exhaust purifying device and method of producing the same

Details Exhaust purifying device and method of producing the same Exhaust purifying device and method of producing the same

1993-02-23

1994-04-12

Warden, Robert J.

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Waste gas purifier

422177, 60299, 502527, 502439, 29890, 2989008, B01D 5336, F01N 328

Patent

active

053023552

ABSTRACT:
In an exhaust purifying device for an internal combustion engine, a honeycomb core is constituted by a single webbing which is implemented as foil of stainless steel. The webbing is made up of a flat portion and a corrugated portion adjoining each other in the longitudinal direction of the webbing. The flat portion is held by a core metal forming part of a jig at a particular position which is a predetermined distance remote from a position where the corrugated portion begins. The core metal is rotated about its own axis in such a direction that the flat portion underlies the corrugated portion. As the core metal is rotated, the flat portion forms a core portion around the core metal. Thereafter, the corrugated portion and flat portion are sequentially wound around the core metal while lying one above the other to thereby form the honeycomb core. The honeycomb core is received in a casing to be attached to the exhaust system of the engine.

REFERENCES:
patent: 4576800 (1986-03-01), Retallick
patent: 4719680 (1988-01-01), Cyron
patent: 4976103 (1990-12-01), Takikawa et al.
patent: 4988483 (1991-01-01), Usui et al.
patent: 5094821 (1992-03-01), Hitachi et al.
patent: 5130100 (1992-07-01), Serizawa

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