Fluid pressure regulator
    1.
    发明授权
    Fluid pressure regulator 有权
    流体压力调节器

    公开(公告)号:US06779541B2

    公开(公告)日:2004-08-24

    申请号:US10267781

    申请日:2002-10-10

    IPC分类号: G05D1620

    摘要: A fluid pressure regulator has a program controller, a PID controller, a second PID controller, a drive controller, a solenoid-operated valve for supplying a fluid, a solenoid-operated valve for discharging a fluid, a diaphragm, a main valve, and a pressure sensor. Based on a desired preset value and/or a desired control program inputted from an external source, the fluid pressure regulator regulates the pressure or flow rate of the fluid discharged from a discharge port of the main valve. A detecting mechanism is combined with a controlled object for supplying a controlled variable in the controlled object to the second PID controller through a feedback loop.

    摘要翻译: 液压调节器具有程序控制器,PID控制器,第二PID控制器,驱动控制器,用于供应流体的电磁阀,用于排出流体的电磁阀,隔膜,主阀和 压力传感器。 基于从外部源输入的期望的预设值和/或期望的控制程序,流体压力调节器调节从主阀的排出口排出的流体的压力或流量。 检测机构与受控对象组合,用于通过反馈回路将受控对象中的受控变量提供给第二PID控制器。

    Nozzle flapper mechanism
    2.
    发明授权
    Nozzle flapper mechanism 失效
    喷嘴挡板机构

    公开(公告)号:US4934401A

    公开(公告)日:1990-06-19

    申请号:US301708

    申请日:1989-01-26

    摘要: A nozzle flapper mechanism includes an electrostrictive device, a plate member coupled to the electrostrictive device, a nozzle having an orifice facing the electrostrictive device or the plate member, and a controller for applying a voltage to the electrostrictive device to keep a nozzle back pressure constant or vary the nozzle back pressure. The electrostrictive device comprises a shim, piezoelectric ceramics members disposed on the shim, and thin-film electrodes disposed on the piezoelectric ceramics members, the electrodes having an area smaller than that of the piezoelectric ceramics members, the piezoelectric ceramics members having one end directly fixed in position on a stationary member.

    摘要翻译: 喷嘴挡板机构包括电致伸缩装置,耦合到电致伸缩装置的板构件,具有面向电致伸缩装置或板构件的孔的喷嘴,以及用于向电致伸缩装置施加电压以保持喷嘴背压恒定的控制器 或改变喷嘴背压。 电致伸缩装置包括垫片,设置在垫片上的压电陶瓷构件和设置在压电陶瓷构件上的薄膜电极,电极的面积小于压电陶瓷构件的面积,压电陶瓷构件的一端直接固定 在固定构件上的位置。

    Fluid pressure controller
    4.
    发明授权

    公开(公告)号:US06584999B2

    公开(公告)日:2003-07-01

    申请号:US09956981

    申请日:2001-09-21

    IPC分类号: G05D1620

    摘要: A fluid pressure controller has an air supply valve plug displaceable under an action of pilot pressure of a pilot chamber. When the air supply valve plug is seated on a seat section, fluid communication between a supply port and a regulator port is interrupted. Further, the fluid pressure controller has a solenoid valve. When electric power supply to the solenoid valve is interrupted, the solenoid valve is opened to generate pilot pressure applied to the air supply valve plug by the original pressure of pressurized fluid introduced from the pressurized fluid supply source to the supply port.