Engine

Details Engine Engine

1995-08-04

1997-09-02

Okonsky, David A.

Internal-combustion engines

Two-cycle

Whirl through piston-controlled ports

123 65EM, F02B 2702

Patent

active

056620730

ABSTRACT:
An exhaust arrangement for an internal combustion engine wherein the timing of the cylinder events is such that the exhaust port of one cylinder opens before the exhaust port of another cylinder closes so as to improve scavenging and performance. In preferred embodiments, the engine is of a 2-cycle type and the exhaust port of the one cylinder also opens before the scavenge port of the other cylinder closes. The principle is also depicted in conjunction with a four cylinder engine.

REFERENCES:
patent: 1818796 (1931-08-01), Feyens
patent: 2393341 (1946-01-01), Schneider
patent: 4312308 (1982-01-01), Slattery
patent: 4714056 (1987-12-01), Tottori et al.
patent: 4732117 (1988-03-01), Tanahashi et al.
patent: 4732118 (1988-03-01), Tanahashi et al.
patent: 4766854 (1988-08-01), Riese
patent: 5134851 (1992-08-01), Davis

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