Two stroke cycle engine with increased efficiency

Details Two stroke cycle engine with increased efficiency Two stroke cycle engine with increased efficiency

1981-12-21

1983-06-07

Burns, Wendell E.

Internal-combustion engines

Two-cycle

Whirl through piston-controlled ports

123 65A, 123 65VD, 123182, F02B 7506, F02B 7708

Patent

active

043865879

ABSTRACT:
A method and apparatus is disclosed for decreasing fuel consumption in a variably loaded, two cycle internal combustion engine. Fluid communication is provided between the working cylinder and air chamber during the upward stroke of the engine up to about 85.degree.-105.degree. BTDC, during which time the cylinder gases can flow back into the air chamber reducing engine friction as a result of a delay in the rise of the cylinder gas pressure during compression and a reduction in the peak compression pressure.

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patent: 3875909 (1975-04-01), May
patent: 4128085 (1978-12-01), Kuni
patent: 4312308 (1982-01-01), Slattery

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