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    • 7. 发明授权
    • Valve control device
    • 阀门控制装置
    • US3721267A
    • 1973-03-20
    • US3721267D
    • 1971-10-28
    • PAXTON MITCHELL
    • SHOLL AWOLFE DBENITEZ A
    • F15B21/08F15B11/04
    • F15B21/08Y10T137/86389Y10T137/86445
    • A control device operably connected to a pressure compensated flow control valve for controlling the rate of flow of fluid therethrough. The device includes a spring connected to the shaft of the valve to bias it to a normal position, a stop assembly secured to the shaft and having a plurality of stops wherein each stop limits the movement of the shaft to a predetermined amount, a stop control actuator operably connected to the shaft and having a shaft control means connected thereto, wherein the actuator in response to the shaft control means is operable to apply force to the shaft to move it in step relation against the bias of the spring to any predetermined position as established by the position of the stops in step relation.
    • 控制装置,其可操作地连接到压力补偿流量控制阀,用于控制流体通过其流动的速率。 该装置包括连接到阀的轴以将其偏压到正常位置的弹簧,固定到轴上并具有多个止动件的止动组件,其中每个止动器将轴的运动限制在预定量,停止控制 致动器可操作地连接到所述轴并且具有连接到其上的轴控制装置,其中所述致动器响应于所述轴控制装置可操作以向所述轴施加力以将所述致动器以步进关系方式抵抗所述弹簧的偏压移动到任何预定位置, 通过步骤关系中的停靠位置建立。