Flexible set cycloid gear pump rotor pump vane pump with the advantages of a similar volume than pump more than 10% efficiency.
柔性摆线转子泵集齿轮泵与叶片泵优点于一身比同类容积泵的效率提高10%以上。
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As there were leak on contact place between shaft and rotor body in built up hollow rotor, dropping discharg gas speed of pump and efficiency applied of oil sealed sliding vane rotary vacuum pump.
Moreover, because the intensity of vortex shedding in the wake of the guide vane is too weak, it's frequency has no influence on the vibration characteristics of the low-pressure compressor rotor.