得到了叶片数对离心油泵叶轮切割定律的影响规律性。
The influence of the number of blades on the affinity law of impeller trim for the centrifugal oil pump is obtained.
分析了不同出口角叶轮切割后性能和切割指数的差异。
The discrepancy in both performance and trim exponent among the impellers with different outlet angles has been analyzed.
得到了输送粘油时65y60型离心油泵的叶轮切割规律。
The affinity law of impeller trim for the centrifugal oil pump 65y60 is gained when pumping viscous oil.
输送水时，叶轮切割后，泵的扬程、轴功率、效率都下降。
When pumping water, the head, shaft power and efficiency of the pump decrease with the reducing in impeller diameter.
叶轮切割指数与直径比的确存在着某种关系，也就是切割指数随着切割后的直径比的变化而变化。
There is a relationship between the trim exponents and impeller diameter ratio, namely the exponents vary with the ratio.
目前，都采用离心清水泵的切割定律来切割离心油泵叶轮。
Nowadays, the affinity law of impeller trim for the centrifugal water pumps is applied to impeller trim for the centrifugal oil pumps.
目前，都采用离心清水泵的切割定律来切割离心油泵叶轮。
Nowadays, the affinity law of impeller trim for the centrifugal water pumps is applied to impeller trim for the centrifugal oil pumps.
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