Exhaust tuning means for internal combustion engines

Details Exhaust tuning means for internal combustion engines Exhaust tuning means for internal combustion engines

F - Mech Eng,Light,Heat,Weapons

01

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172/31

F01N 1/02 (2006.01) F01N 1/06 (2006.01) F01N 1/08 (2006.01) F02B 75/02 (2006.01)

Patent

CA 1148868

IMPROVED SILENCER MEANS FOR INTERNAL COMBUSTION ENGINES Abstract of the Disclosure A silencer means particularly suited to two-cycle internal combustion engines includes an exhaust inlet pipe to receive exhaust from the exhaust ports of an engine, communicating with a diverging conical section which is followed by an exhaust chamber. An elliptically-shaped flat plate is located in the straight tubular section comprising the exhaust chamber. The plate is angled to produce a converging area at the end of the expansion chamber. An exhaust pipe or stinger is in communi- cation with the interior of the expansion chamber in close prox- imity to the surface of the flat plate to receive engine exhaust gases and conduct the gases to the surrounding environment. Alternatively, the stinger can be so constructed that both ends of the stinger are closed, having a plurality of perforations in proximity to each end of the stinger to receive and exhaust gases to the surrounding environment from the exhaust chamber.

363766

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