Internal combustion engine

Details Internal combustion engine Internal combustion engine

1990-01-22

1991-12-17

Okonsky, David A.

Internal-combustion engines

Two-cycle

Whirl through piston-controlled ports

123 65P, 123 73PP, 123 73V, 123 73DA, 123 9015, 123196R, F02B 2508

Patent

active

050726994

ABSTRACT:
A cylinder block includes a cylinder with a piston therein and a main crankcase. A combustion space is disposed above the piston and a compression space is disposed below the piston. An exterior passage including a reservoir transfers compressed air from the compression space to the combustion space. A first valve permits one-way flow of ambient air into the compression space, and a second valve permits one-way flow from the compression space into the passage so that the compression process is independent of the combustion process. In one embodiment, the exterior passage includes a first passage for air and a second passage for fuel-air mixture for selective communication with the combustion chamber. In another embodiment, an inner crankcase is disposed within and spaced from the main crankcase and incorporates the first and second valves.

REFERENCES:
patent: 2216083 (1940-09-01), Leser et al.
patent: 2552006 (1951-05-01), Gill
patent: 2946324 (1960-07-01), Casini
patent: 3441009 (1969-04-01), Rafanelli
patent: 3683875 (1972-08-01), Chadwick
patent: 3929111 (1975-12-01), Turner et al.
patent: 4362132 (1982-12-01), Neuman
patent: 4879974 (1989-11-01), Alvers

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