Exhaust control system for 2-cycle engines

Details Exhaust control system for 2-cycle engines Exhaust control system for 2-cycle engines

1984-12-11

1986-02-18

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

Pulsed, timed, tuned or resonating exhaust

60312, F02B 2702

Patent

active

045704392

ABSTRACT:
An exhaust control system for 2-cycle engines has a main exhaust passage, auxiliary exhaust passages arranged in parallel with the main exhaust passage, and an expansion chamber communicatable with the main exhaust passage. During low-speed operation of the engine, the auxiliary exhaust passages are shut-off while the expansion chamber is connected to the main exhaust passage, whereas, during high-speed operation of the engine, the auxiliary exhaust passages are opened and the expansion chamber is closed.

REFERENCES:
patent: 4522029 (1985-06-01), Tomita

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