Hydraulic valve timing control device for an internal combustion

Details Hydraulic valve timing control device for an internal combustion Hydraulic valve timing control device for an internal combustion

1982-08-31

1984-10-16

Koczo, Michael

Internal-combustion engines

Poppet valve operating mechanism

Hydraulic system

123 9015, F01L 134

Patent

active

044768230

ABSTRACT:
A device is described for controlling the intake and exhaust valves of an internal combustion engine. Separate valve actuators are provided for opening and closing the intake and exhaust valves of each cylinder of an engine. Each such actuator is connected to a pair of cam actuated pumps for providing timed pulses of pressurized fluid to the valve actuators. The cams which actuate the pumps are turned by a planetary gear mechanism which permits the incidence of pump actuation in relation to the rotation of a shaft turned by the engine to be varied. The device permits close, precise and variable control of the valve timing of the engine to thereby achieve enhanced engine performance.

REFERENCES:
patent: 2027655 (1936-01-01), Stoeckicht
patent: 2290626 (1942-07-01), Bosomworth
patent: 3209737 (1965-10-01), Omotehara
patent: 3313280 (1967-04-01), Arutunoff
patent: 3572362 (1971-03-01), Pauliukonis
patent: 3683874 (1972-08-01), Berlyn
patent: 4153016 (1979-05-01), Hausknecht

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