F - Mech Eng,Light,Heat,Weapons – 01 – L
Patent
F - Mech Eng,Light,Heat,Weapons
01
L
123/186
F01L 9/02 (2006.01)
Patent
CA 1239063
VALVE TIMING CONTROL DEVICE ABSTRACT OF THE DISCLOSURE 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. SUMMARY OF THE INVENTION The present invention is directed to a device for controlling and varying the valve timing of an internal combustion engine. More specifically, the invention is directed to hydraulic valve actuators for opening and closing the intake and exhaust valves of the engine and hydraulic actuator pumps for supplying precisely timed pulses of fluid to the actuators, the periodic action of the actuator pumps being varied by advancing or retarding a planetary gear assembly in relation to the revolution of a rotating shaft turned by the engine. BACKGROUND OF THE INVENTION Many of the present problems in society can be linked to the inefficient consumption of petroleum and the resulting rising cost and environment pollution. Reduction of our petroleum consumption rates increases the health of our society and economy. In addition, reduction of consumption rates assures that more of this valuable resource will be left for our prodigies to enjoy. Even the quality of our environment and the air we all breathe would be improved by more fuel efficient transportation vehicles. The technologies proposed here are projected to provide an increase in efficiency of the internal combustion engine vehicles from the present arena of approximately 30% to a realm of 75%
465454
Kirby Eades Gale Baker
Williams John K.
LandOfFree
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