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PNEUMATIC CONTROL SYSTEM AND CONDITION RESPONSIVE VALVE CONSTRUCTION THEREFOR OR THE LIKE.
PNEUMATIC CONTROL SYSTEM AND CONDITION RESPONSIVE VALVE CONSTRUCTION THEREFOR OR THE LIKE.
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机译:气动控制系统和状态响应阀的构造如其所愿。
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摘要
1299652 Valves ROBERTSHAW CONTROLS CO 13 April 1970 [14 April 1969] 17519/70 Heading F2V A thermally actuated valve has a surface 15 provided with inlet and outlet parts (18), 19, a slide 31 provided with a channel 35, and a bimetal strip 39 arranged to move the slide to open or close a flow path between the parts through channel 35. The slide is of laminated construction with a porous compressible layer 34 which forces the outer layers 32, 33 into sealing contact with the walls of slot 15, and which forms a filter adjacent a hole 38 which is aligned with and vents output port 19 when the valve is closed. The bi-metal strip is of U-shape with its end 44 attached to slide 31, and its other end 40 secured to casing 11 which has opaque portions surrounding the anchored striplimb and a transparent window 53 over the free limb so that this limb can be heated by a heater 29 when it is actuated by a control 27 fed through the valve with fluid from a source 25. The subsequent movement of slide 31 cuts off the fluid supply to control 27 which cuts off the heater so that the bi-metal strip returns the parts to their starting positions. Limb 39 compensates the valve for changes in ambient temperature.
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机译:1299652阀门ROBERTSHAW CONTROLS CO 1970年4月13日[1969年4月14日] 17519/70航向F2V一种热力驱动阀门,其表面15上设有入口和出口部件(18),19,带有通道35的滑阀31和双金属片带39布置成移动滑块以通过通道35打开或关闭零件之间的流动路径。滑块为层压结构,具有多孔的可压缩层34,其迫使外层32、33与槽口15的壁密封接触。 ,并在孔38附近形成过滤器,当阀关闭时,孔38对准并排出口19。双金属条是U形的,其端部44附接到滑动件31,并且另一端40固定至壳体11,壳体11具有围绕锚定的带状肢的不透明部分和在自由肢上方的透明窗53,使得该肢可以当由控制器27驱动时,加热器29会加热加热器29,该控制器27会通过阀供给来自水源25的流体。滑块31的后续移动会切断对控制器27的流体供应,控制器27会切断加热器,从而使双金属条带将零件恢复到其初始位置。肢39补偿阀的环境温度变化。
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