Two cycle engine with valved pressure scavenging

Details Two cycle engine with valved pressure scavenging Two cycle engine with valved pressure scavenging

1989-06-21

1991-01-29

Okonsky, David A.

Internal-combustion engines

Two-cycle

Whirl through piston-controlled ports

123190A, 1235591, F02B 7502

Patent

active

049878646

ABSTRACT:
A port scavenged two cycle engine with a separate source of pressurized air has a valve between each port and the air supply to provide a high blowdown pulsing scavenging flow to the cylinders similar to that of a crankcase scavenged engine. Various arrangements with additional features are disclosed.

REFERENCES:
patent: 2110754 (1938-03-01), Alston
patent: 2113979 (1938-04-01), Bokemuller
patent: 2115525 (1938-04-01), Hocke et al.
patent: 2924069 (1960-02-01), Buchi
patent: 2949905 (1960-08-01), Brueder
patent: 3680305 (1972-08-01), Miller
patent: 4340016 (1982-07-01), Ehrlich
patent: 4579093 (1986-04-01), Eanes
patent: 4864979 (1989-09-01), Eickmann

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