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    • 3. 发明授权
    • Fluid valve
    • 流体阀
    • US4195665A
    • 1980-04-01
    • US881000
    • 1978-02-24
    • Gaillard R. NolanWilliam E. Flynn
    • Gaillard R. NolanWilliam E. Flynn
    • F16K11/02G01N1/00
    • G01N35/1097F16K11/027Y10T137/86445Y10T137/86501Y10T137/86911Y10T137/8782
    • The fluid valve essentially comprises a support structure designed rotatably to support an inlet within a certain oscillatory ambit and stationarily supporting a plurality of outlets within the oscillatory ambit, and operative means for effecting fluid-tight communication seriatim between the inlet and one of the outlets. The inlet is preferably a blunt needle provided with a side port and each of the outlets comprises an inverted "Y"-shaped member formed of an entrance portion and a pair of leg portions. The needle is designed to be thrust into the entrance portion, so that its side port establishes fluid-tight communication with one of the leg portions. Means are provided, including a pneumatic cylinder, for effecting relative motion between the inlet and the outlets. There is also a means for normally closing off all the entrance portions of the outlets except the selected one, and only during the entry of the blunt needle therein. Such means includes a plurality of pinch rods and a cylindrical cam mounted about the pneumatic cylinder and provided with a channel to cooperate with one end of the pinch rods so as to open the selected outlet when the needle is thrust therein. Means are also provided for selectively indexing the needle within the oscillatory ambit which comprises both electrical and mechanical parts.
    • 流体阀基本上包括支撑结构,该支撑结构可旋转地设计成支撑一定振荡范围内的入口,并且在振荡范围内固定地支撑多个出口,以及用于在入口和一个出口之间进行流体密封通信的操作装置。 入口优选是设置有侧端口的钝针,并且每个出口包括由入口部分和一对腿部部分形成的倒置的“Y”形构件。 针被设计成被推入入口部分,使得其侧面与腿部之一建立流体密封连通。 提供了包括用于在入口和出口之间进行相对运动的气缸的装置。 还有一种用于通常关闭出口除了所选择的出口的所有入口部分,并且仅在钝针入口期间的装置。 这种装置包括多个夹紧杆和围绕气缸安装的圆柱形凸轮,并且设置有与夹紧杆的一端配合的通道,以便当针被推入时打开所选择的出口。 还提供了用于在包括电气和机械部件的振荡范围内选择性地分度针的装置。