| 摘要 |
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 THE CANISTER MUFFLER (10) HAS MOUNTED WITHIN IT SEVERAL TUBES (30) 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 NOSE. FURTHER, THESE TUBES (30) ARE COATED WITH A CATALYTIC SUBSTANCE TO TREAT THE EMISSION STREAM AND THUS DECREASE UNDERSIRED POLLUTANTS. THE TURBULENT FLOW OF THE EMISSION STREAM CAUSED BY THE TUBES (30) 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.
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