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公开(公告)号：US3752184A
公开(公告)日：1973-08-14
申请号：US3752184D
申请日：1971-12-02
申请人： GRISWOLD CONTROLS
发明人： GRISWOLD D
CPC分类号： G05D7/0133 , Y10T137/7792 , Y10T137/86734
摘要： A flow control valve employs a ported cup which slides within an opening in a stationary member under increasing pressure differential and against the action of a spring, so that pressure differential changes have little or no effect on the rate of flow through the valve. A cylindrical side wall of the cup is provided with a plurality of axially extending duplicate series of circumferentially staggered separate port segments, the port segments in each of the series decreasing in circumferential width toward a closed end of the cup. Adjacent port segments in the series have end boundaries in substantially the same transverse plane normal to the cup axis, and one side boundary of each port segment in the series lies in a plane containing the axis of the cup. The shape and pattern of the port segments provide greater cup strength and minimize trapping of foreign objects carried by the fluid.
摘要翻译： 流量控制阀采用端口杯，其在增加的压力差下并抵抗弹簧的作用在固定构件的开口内滑动，使得压力差变化对通过阀的流速几乎没有影响或没有影响。 杯的圆柱形侧壁设置有多个沿轴向延伸的周向交错的单独端口段的重复系列，每个序列中的端部段的周向宽度朝向杯的封闭端减小。 该系列中的相邻端口段具有垂直于杯轴线的基本上相同的横截面中的端部边界，并且该系列中每个端口段的一个边界位于包含杯的轴线的平面中。 端口段的形状和图案提供更大的杯强度并最小化由流体携带的异物的捕获。
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公开(公告)号：US3723827A
公开(公告)日：1973-03-27
申请号：US3723827D
申请日：1972-02-11
申请人： GRISWOLD CONTROLS
发明人： GRISWOLD D , MC CARTY W
CPC分类号： G05B19/07 , A01G25/162 , Y02A40/237 , Y10S239/15 , Y10T307/461 , Y10T307/484
摘要： A known system for controlling a plurality of stations, such as irrigating sprinkler valves, over a conductor pair for either selective or sequential activation includes a solenoid as the device to be activated at each station and requires short interruptions in the operating voltage at a control point to effect sequential activation of the stations, but for selective activation this same system utilizes two different voltage levels with short interruptions, a lower voltage being required to bypass unwanted stations and higher voltage built up at a controlled rate being required for selective activation of a station. An improvement in the known system includes delay means in association with the solenoids at the stations for delaying the response of the solenoids thereby simplifying the equipment the control point by permitting the use of only one voltage level, while avoiding activation of unselected stations.
摘要翻译： 用于控制选择性或顺序激活的导体对上的多个站（例如冲洗喷淋阀）的已知系统包括作为在每个站处被激活的装置的螺线管，并且需要在控制点处的操作电压的短暂中断 为了实现站点的顺序激活，但是对于选择性激活，该相同系统利用具有短暂中断的两个不同的电压电平，需要较低的电压来绕过不需要的站，并且以受控的速率建立的更高的电压是选择性激活站所需要的 。 已知系统的改进包括与站点处的螺线管相关联的延迟装置，用于延迟螺线管的响应，从而通过允许仅使用一个电压电平来简化控制点的设备，同时避免启动未选择的电台。
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公开(公告)号：US3752183A
公开(公告)日：1973-08-14
申请号：US3752183D
申请日：1971-12-02
申请人： GRISWOLD CONTROLS
发明人： GRISWOLD D
CPC分类号： G05D7/0133 , F16K3/26 , F16K3/34 , F16K31/36 , Y10T137/7792 , Y10T137/7869
摘要： A flow control valve has a stationary member provided with an orifice plate together with a ported cup which slides within the opening in the orifice plate against the action of a spring, to provide substantially constant rate of flow under varying differential pressures across the cup. The ported cup has a generally cylindrical side wall and an end wall, the side wall having an outer surface comprising a first cylindrical surface near the end wall and a concentric second cylindrical surface axially spaced therefrom of smaller diameter, and a tapered surface joining the first and second cylindrical surfaces. Ports in the side wall extend through at least one of said cylindrical surfaces. This construction provides a minimum port area change which is lower than the range which can be obtained with the minimum width of a single port segment.
摘要翻译： 流量控制阀具有固定构件，该静止构件与孔板一起设置有孔板，该移动式杯子克服弹簧的作用在孔板内的开口内滑动，从而在跨越杯子的变化的压差下提供基本上恒定的流速。 移动杯具有大致圆柱形的侧壁和端壁，该侧壁具有外表面，该外表面包括靠近端壁的第一圆柱形表面和与其直径相距较远的同心第二圆柱形表面，以及锥形表面， 和第二圆柱形表面。 侧壁中的端口延伸穿过至少一个所述圆柱形表面。 这种结构提供了最小端口面积变化，该变化低于可以通过单个端口段的最小宽度获得的范围。
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