Accumulator Tank: a sealed air chamber combined with a water reservoir provides expansion volume to reduce pump cycling from minor pressure changes and give a steady flow.

压力鼓：你个密封的空间结合水箱来提供充足的空间来减少泵循环时较小的压力改变和稳定的水流。

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The pump flow evenly, smooth operation, low noise, high power operation pressure and volume ratio gear pumps, gear pumps than messy layout.

这种泵流量均匀、作业平稳、噪音小、作业压力和容积功率比齿轮泵高、布局比齿轮泵杂乱。

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To the problem of cavitation and shock that appears in the outside circulation piston pump running, the relation-ship between rotor profile and dead volume, flow rate and cavitation were analyzed.

针对外环流活塞泵运转时出现的汽蚀、震动问题，从理论上分析了转子型线与闭死容积、流速变化和发生汽蚀的内在关系；

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