spool-type control valve

When the control valve when the reverse, so that both fluid along the direction of movement of spool when closed, the flow control valve capacity will be increased.

当调节阀反向使用时，既流体沿着使阀芯关闭的方向流动时，调节阀的流通能力会增大。

In this paper, according to the results of previous studies using high-speed switching solenoid valve as a pilot valve control valve spool multiple displacement, the ultimate control of the telescopic hydraulic cylinder.

本论文根据以往的研究成果提出用高速开关电磁阀作为先导阀来控制多路阀阀芯位移，最终控制工作液压缸的伸缩。

The digital servo valve is composed of 2-stage pneumatic servo valve developed with rotary and linear motions of a single spool, and stepper motor under continual control.

2D气动数字伺服阀由阀芯双自由度设计的两级气动伺服阀和连续跟踪控制的步进电动机作为电&机械的接口两部分构成。