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    • 3. 发明授权
    • Variator switching valve scheme for a torroidal traction drive transmision
    • 变速器切换阀方案用于环形牵引驱动传动
    • US08840522B2
    • 2014-09-23
    • US13325372
    • 2011-12-14
    • Charles F. LongDarren J. WeberJohn W. E. Fuller
    • Charles F. LongDarren J. WeberJohn W. E. Fuller
    • F16H15/38F16H61/664
    • F16H15/40F16H61/0265F16H61/664F16H61/6648
    • An apparatus for controlling a variator having at least one roller between two toroidal disks may include at least one actuator responsive to fluid pressure at separate high side and low side fluid inlets thereof to control torque applied by the at least one roller to the disks. First and second variator switching valves may each receive a first fluid at a first pressure and a second fluid at a second lesser pressure. The first and second variator switching valves supply the first fluid to the high side fluid inlet and the second fluid to the low side fluid inlet during two of four different operational states together defined by the variator switching valves, and supply the second fluid to the high side fluid inlet and the first fluid to the low side fluid inlet during each of the remaining two of the four different operational states.
    • 用于控制在两个环形盘之间具有至少一个辊的变换器的装置可以包括至少一个致动器,其响应于分离的高侧和低侧流体入口处的流体压力,以控制由至少一个辊施加到盘的扭矩。 第一和第二变换器切换阀可以分别以第一压力接收第一流体,在第二较小压力下接收第二流体。 第一和第二变换器切换阀在由变换器切换阀一起限定的四个不同操作状态期间的两个期间将第一流体供应到高侧流体入口和第二流体到低侧流体入口,并将第二流体供应到高 侧流体入口和第一流体到四个不同操作状态中的剩余两个中的每一个中的低侧流体入口。