Internal combustion engine with disc inlet valve

Details Internal combustion engine with disc inlet valve Internal combustion engine with disc inlet valve

1984-08-20

1985-11-05

Feinberg, Craig R.

Internal-combustion engines

Two-cycle

Rear compression

123 80D, 123190D, F01L 706

Patent

active

045506965

ABSTRACT:
A high performance two-stroke internal combustion engine comprises at least one disc inlet valve driven from a shaft via bevel gears. The shaft is driven from a pinion secured to the engine crank-shaft via a variable drive. The variable drive includes a spring which biases a cross pin to one end of a spiral slot in the shaft to maintain pinion at a position relative to the shaft which provides maximum inlet valve advance during starting. As engine revs increase the pinion progressively leads the shaft thereby retarding inlet valve timing. When the valve timing is fully retarded a bobbin of the drive is latched by a magnet to hold the valve timing fully retarded until engine revs fall.

REFERENCES:
patent: 1130427 (1915-03-01), O'Neal
patent: 1227698 (1917-05-01), Tibbetts
patent: 2682260 (1953-01-01), Lantz
patent: 3119380 (1964-01-01), Armstrong
patent: 3392713 (1968-07-01), Hilber et al.
patent: 3603299 (1971-09-01), Lamperti
patent: 4071000 (1978-01-01), Herbert
patent: 4079706 (1978-03-01), Konig
patent: 4305352 (1981-12-01), Oshima et al.
patent: 4418658 (1983-12-01), DiRoss

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