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    • 4. 发明授权
    • Pneumatic control system, control means therefor and method of making
the same
    • 气动控制系统及其控制方法及其制作方法
    • US4679583A
    • 1987-07-14
    • US812367
    • 1985-12-23
    • William L. LucasClarence M. Asbill, IIIGerald L. FrankDavid M. Miller
    • William L. LucasClarence M. Asbill, IIIGerald L. FrankDavid M. Miller
    • G05D16/20G05D16/00
    • G05D16/2093Y10T137/2365Y10T137/2409Y10T137/7761
    • A pneumatic control system, control unit and method of making the same are provided, the system comprising a pneumatic source, a pneumatically operated device that produces an output, and a control unit for interconnecting the source to the device. The control unit has an input interconnected to the source and an output interconnected to the device, the control unit having a set point for selecting a desired output of the device. The control unit has a valve unit for controlling the interconnection between the input and the output thereof so as to regulate the pressure value in the output of the control unit. The control unit has a regulating unit for operating the valve unit to tend to produce an output of the device that corresponds to the selected output of the set point. The regulating unit senses the pressure value in the output of the control unit and operates the valve unit so as to produce a pressure value in the output of the control unit that is substantially equal to the pressure value that will cause the device to produce the selected output.
    • 提供了一种气动控制系统,控制单元及其制造方法,该系统包括气动源,产生输出的气动操作装置以及用于将该源与装置相互连接的控制单元。 控制单元具有与源相互连接的输入和与设备互连的输出,所述控制单元具有用于选择设备的期望输出的设定点。 控制单元具有用于控制其输入和输出之间的互连的阀单元,以便调节控制单元的输出中的压力值。 控制单元具有调节单元,用于操作阀单元以倾向于产生对应于设定点的选定输出的装置的输出。 调节单元感测控制单元的输出中的压力值并操作阀单元,以便在控制单元的输出中产生一个基本上等于将导致设备产生所选择的压力值的压力值 输出。