Sound deadening and catalyst treating system

Details Sound deadening and catalyst treating system Sound deadening and catalyst treating system

1997-02-21

1999-06-29

Denion, Thomas E.

Power plants

Internal combustion engine with treatment or handling of...

Methods

60299, F01N 300

Patent

active

059161280

ABSTRACT:
A canister, especially for two-cycle engines, having both noise reduction and pollutant treatment attributes in a single unit. To effectuate sound reduction the canister muffler has mounted within it several tubes randomly arranged in relation to one another. Thus, an emission stream is forced to frequently change directions, causing a baffling effect and a reduction in noise. Further, these tubes are coated with a catalytic substance to treat the emission stream and thus decrease undesired pollutants. The turbulent flow of the emission stream caused by the tubes also serves to increase the contact with the catalyst. Hence, a single canister is all that is necessary to both silence and treat the emission exhaust stream.

REFERENCES:
patent: 4628689 (1986-12-01), Jourdan
patent: 5016438 (1991-05-01), Harris
patent: 5043147 (1991-08-01), Knight
patent: 5218817 (1993-06-01), Urata
patent: 5373119 (1994-12-01), Suzuki et al.
patent: 5457290 (1995-10-01), Sase et al.
patent: 5578277 (1996-11-01), White et al.
patent: 5611198 (1997-03-01), Lane et al.

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