The power stage of servovalves is spool valve, playing the role of hydraulic pressureamplifier.
电液伺服阀的功率级一般为滑阀，起液压放大器的作用。
2
The experimental results have demonstrated that the pressureamplifier not only amplifies the pressure ratio, but also improves the acoustic power.
实验结果表明压力放大器不仅可以放大压力，还能提高负载入口声功和热机的效率。
3
This paper introduces the study of a new high - pressure homogenizing system, the processed material obtain high pressure in the system through pneumatic pressureamplifier.