Two cycle crankcase variable inlet timing

Details Two cycle crankcase variable inlet timing Two cycle crankcase variable inlet timing

1989-06-21

1990-08-07

Okonsky, David A.

Internal-combustion engines

Two-cycle

Rear compression

123 9011, F02B 3304

Patent

active

049458698

ABSTRACT:
A crankcase scavenged two cycle engine has a variable timing poppet inlet valve on the crankcase inlet. The valve timing is altered for load control with minimum air pumping loss and open periods may be skipped during skip firing of the engine cylinders for improved efficiency.

REFERENCES:
patent: 2289201 (1942-07-01), Martin
patent: 2428199 (1947-09-01), Buske
patent: 2428791 (1947-10-01), Earnshaw
patent: 4258670 (1981-03-01), Thery
patent: 4777915 (1988-10-01), Bonvallet
patent: 4829947 (1989-05-01), Lequesne

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