Two cycle engine scavenging heat control

Details Two cycle engine scavenging heat control Two cycle engine scavenging heat control

1989-06-21

1990-04-24

Okonsky, David A.

Internal-combustion engines

Two-cycle

Whirl through piston-controlled ports

123556, F02M 3114

Patent

active

049190881

ABSTRACT:
A two cycle engine wherein the scavenging gas is heated at low loads to improve scavenging. The gas may be heated by passage through finned passages in heat exchange relation with the exhaust ports with valves to direct the flow through unheated passages during higher load operation.

REFERENCES:
patent: 2781032 (1957-02-01), Sebok et al.
patent: 3686058 (1975-02-01), Hoare
patent: 3974802 (1976-08-01), Lundquist
patent: 4236490 (1980-12-01), Correll
patent: 4340015 (1982-07-01), Gonzalez
patent: 4545357 (1985-10-01), Kearsley et al.
patent: 4638770 (1987-01-01), Fox
patent: 4846136 (1989-07-01), Phillips

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