Two-cycle engine

Details Two-cycle engine Two-cycle engine

1981-01-12

1982-12-07

Burns, Wendell E.

Internal-combustion engines

Two-cycle

Rear compression

123 73R, 123 73V, 123 73DA, 123 73AF, 123 65P, F02B 3304

Patent

active

043621325

ABSTRACT:
A two-cycle engine is disclosed which conventionally includes a piston that reciprocates between a closed combustion chamber and crankcase. The piston reciprocates through a connecting rod that is eccentrically connected to the crank discs of a crankshaft. The crankcase is partially circular in configuration, and the crankdiscs conform in shape to the crankcase. Each crank disc has an annular recess or pocket extending around its periphery for approximately 180.degree. and in opposition to the eccentric point of connection of the connecting rod. The pockets cyclically communicate with a fuel inlet port and carburetor, both of which are positioned below the crankshaft rotational axis on the downstroke side of the crankcase. Fuel transfer passages between the crankcase and combustion chamber are positioned to receive the fuel charge from each recess as it is thrown tangentially upward with rotation of the crank discs.

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