This research group did some experiment researches in the affinity law of impeller trim and the influence of number of blades on the law etc for the original impeller of centrifugal oil pump of type 65Y60 in succession.

• 本课题组陆续在65Y60型离心油泵原配叶轮切割定律及叶片数的影响等方面作过一些试验研究。