J101024 スプール弁内部における流れの特性(〔J101-02〕回転機械のダイナミック設計(2))

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書誌事項

タイトル別名
  • J101024 Flow Characteristics in Spool Valve

抄録

There are many valves to drive actuators in hydraulic pressure system. They make it possible to control pressure, flow rate, and direction of flow channel. Spool valve is a type of flow control device, used in various hydraulic systems. In some hydraulic flow control systems, however, the working fluid flow can induce an unexpected rotation of the spool valve. This movement can come to lead a mechanical failure of the valve. In the present study, flow configuration in a spool valve was figured out with CFD analysis. The study showed that an impact flow to the inner shaft of a spool valve causes the valve rotation, and the phenomenon is depending on the inlet configuration of the flow channel in the spool valve. Knowing the phenomenon and the cause of the rotation can lead the rotation to be successfully controlled by changing the geometric configuration.

収録刊行物

  • 年次大会

    年次大会 2013 (0), _J101024-1-_J101024-4, 2013

    一般社団法人 日本機械学会

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