Claims
- 1. An exhaust purifying device for reducing toxic components contained in an exhaust emanating from an internal combustion engine, comprising:
- a honeycomb core formed by winding a set of corrugated-sheet metal and plain sheet metal longer than said corrugated-sheet metal by one turn when wound in the manner that a plurality of openings are formed in radially and longitudinally even positions on the outermost winding thereof, said honeycomb core being applied with a catalyst for promoting oxidation of the exhaust; and
- a casing made of sheet metal to be connected to an intermediate portion of an exhaust pipe as a muffler and to form part of an exhaust passage extending from the internal combustion engine;
- said core being inserted into said casing and soldered by applying solder onto said corrugated-sheet metal wound therein through said plurality of openings, on end portions and circumference of said plurality of openings of said outermost winding, and an inner surface of said casing.
- 2. The device as claimed in claim 1, wherein each of said plurality of openings of said core is of a regular form.
- 3. The device as claimed in claim 1, wherein winding of said set of corrugated-sheet metal and plain sheet metal is initiated from an end-to-end superposed portion adjoining each other.
- 4. The device as claimed in claim 1, wherein winding of said set of corrugated-sheet metal and plain sheet metal is initiated from a superposed end thereof.
Priority Claims (1)
Number |
Date |
Country |
Kind |
4-009702 U |
Feb 1992 |
JPX |
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Parent Case Info
This application is a continuation of application Ser. No. 08/021,233, filed on Feb. 23, 1993, now abandoned.
US Referenced Citations (2)
Number |
Name |
Date |
Kind |
4795615 |
Cyron et al. |
Jan 1989 |
|
5137696 |
Hitachi et al. |
Aug 1992 |
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Continuations (1)
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Number |
Date |
Country |
Parent |
21233 |
Feb 1993 |
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