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    • 5. 发明专利
    • VALVE TIMING CONTROL DEVICE
    • CA1239063A
    • 1988-07-12
    • CA465454
    • 1984-10-15
    • WILLIAMS JOHN K
    • WILLIAMS JOHN K
    • F01L9/02
    • VALVE TIMING CONTROL DEVICE 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%
    • 6. 发明申请
    • HYDRAULIC VALVE TIMING CONTROL DEVICE FOR AN INTERNAL COMBUSTION ENGINE
    • 用于内燃机的液压阀定时控制装置
    • WO1986002405A1
    • 1986-04-24
    • PCT/US1984001651
    • 1984-10-15
    • WILLIAMS, John, K.
    • F01L01/34
    • F01L1/352F01L9/02
    • A device for controlling the intake and exhaust valves (6 and 7 respectively) of an internal combustion engine. Separate valve actuators (10a, 10b) are provided for opening and closing the intake and exhaust valves (6 and 7 respectively) of each cylinder (2) of an engine. Each such actuator (10a, 10b) is connected to a pair of cam actuated pumps (14) for providing timed pulses of pressurized fluid to the valve actuators (10a, 10b). The cams (19, 24) which actuate the pumps (14) are turned by a planetary gear mechanism (22, 23, 29) which permits the incidence of pump actuation in relation to the rotation of a shaft (5) 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.
    • 一种用于控制内燃机的进气门和排气门(6和7)的装置。 提供单独的阀致动器(10a,10b),用于打开和关闭发动机的每个气缸(2)的进气门和排气门(6和7)。 每个这样的致动器(10a,10b)连接到一对凸轮致动泵(14),用于向阀致动器(10a,10b)提供加压流体的定时脉冲。 致动泵(14)的凸轮(19,24)由行星齿轮机构(22,23,29)转动,其允许相对于由发动机转动的轴(5)的转动而引起泵的致动 要变化 该装置允许对发动机的气门正时进行紧密,精确和可变的控制,从而实现增强的发动机性能。