Exhaust system for two-stroke cycle internal combustion engines

Details Exhaust system for two-stroke cycle internal combustion engines Exhaust system for two-stroke cycle internal combustion engines

1990-05-08

1991-05-07

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

By means producing a chemical reaction of a component of the...

60314, 422176, 422177, F01N 318

Patent

active

050126423

ABSTRACT:
An exhaust system for two-stroke cycle internal combustion engines comprises a diffuser, which is adapted to be connected to the internal combustion engine, a baffle, which is provided downstream of the diffuser, a catalytic converter, which is disposed between said diffuser and said baffle, and a diffuser discharge pipe, which extends in said diffuser and is much smaller in diameter than the largest diameter of the exhaust system. In order to ensure that the catalytic converter will be lighted off quickly and that the gas dynamics will not adversely be affected to an appreciable degree, the diffuser discharge pipe extends from a location adjacent to the exhaust gas outlet of the cylinder and the inlet of the diffuser to the catalytic converter and merges by means of a steep funnel into the catalytic converter.

REFERENCES:
patent: 3948046 (1976-04-01), Davidson
patent: 4195063 (1980-03-01), Iwaoka
patent: 4206177 (1980-06-01), Otsubo et al.
patent: 4890690 (1990-01-01), Fischer

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