Exhaust silencer system for two-cycle engine

Details Exhaust silencer system for two-cycle engine Exhaust silencer system for two-cycle engine

1990-08-30

1992-07-07

Argenbright, Tony M.

Internal-combustion engines

Two-cycle

Whirl through piston-controlled ports

60312, F01N 102

Patent

active

051273721

ABSTRACT:
An exhaust silencing system for a two-cycle ported engine including an expansion chamber that communicates with the cylinder through a communication port that is opened before the exhaust port of the engine is opened so as to permit the exhaust gases to expand and reduce the noise of the engine. The communication port is either fully opened before the exhaust port is initially opened so as to achieve maximum silencing and/or is fully closed before the exhaust port is fully closed so as to avoid loss of effective compression pressure.

REFERENCES:
patent: 4068630 (1978-01-01), Bennett et al.

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