Exhaust system for a two-cycle engine

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

1981-01-09

1982-09-14

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

Pulsed, timed, tuned or resonating exhaust

181249, 181265, F01N 108, F02B 2702

Patent

active

043488625

ABSTRACT:
In the present invention, a second expansion chamber which includes a second diffuser is provided in pneumatic connection with the prior art first expansion chamber of an exhaust system for a two-cycle engine. The second expansion chamber creates a second pressure drop or relative vacuum substantially adjacent the point of pneumatic connection between the first and second expansion chambers, which acts to draw-out the exhaust gases present at the rear-cone shaped portion of the first diffuser. The second pressure drop or relative vacuum created by the second expansion chamber of the present invention thus overcomes the deficiencies caused by the pressure increase produced by the rear-cone shaped portion of the first diffuser. Several embodiments of the present invention are disclosed.

REFERENCES:
patent: 1611475 (1926-12-01), Maxim
patent: 1778101 (1930-10-01), Bie
patent: 3434280 (1969-03-01), Burkhart
patent: 3462947 (1969-08-01), Nowak

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