Combined fluid pump and two-cycle, internal combustion engine

Details Combined fluid pump and two-cycle, internal combustion engine Combined fluid pump and two-cycle, internal combustion engine

1988-03-24

1989-06-06

Okonsky, David A.

Internal-combustion engines

Multiple cylinder

Cylinders in-line

123 73FA, 123317, 417380, F02B 7540

Patent

active

048361500

ABSTRACT:
An internal combustion engine having a bi-diameter or stepped piston between a combustion chamber and crankcase. Piston outlet means is provided in the smaller upper piston portion which permits mixture from the crankcase to pass through to a mixture channel. The mixture channel leads to ports in the upper cylinder portion forming the combustion chamber. A pumping chamber is formed in part by the larger lower piston portion seperate from the crankcase.

REFERENCES:
patent: 1208805 (1916-12-01), Lonaberger et al.
patent: 1836081 (1931-12-01), McFarland et al.
patent: 2154504 (1939-04-01), Gold et al.
patent: 2508391 (1950-05-01), Huntington
patent: 3981280 (1976-09-01), Franke
patent: 4068629 (1978-01-01), Hooper
patent: 4138971 (1979-02-01), Fujikawa et al.
patent: 4169434 (1979-10-01), Guenther
patent: 4478180 (1984-10-01), Fujikawa et al.

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