Semi-open centrifugal pump impeller and its optimization design

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United States of America Patent

PATENT NO 11525454
SERIAL NO

16669276

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A process for optimizing the design of a semi-open centrifugal pump impeller involves the steps of, reducing the number of long blades and adding a medium length splitter blade and a short length splitter blade having varying circumferential distances between any two optimized long blades. Each medium length and short length splitter blade have the same outlet position, profile and thickness as the optimized long blade; however, the medium length and short length splitter blades have different inlet positions relative to the optimized long blade. The long blade, medium length splitter blade and short length splitter blade are arranged in circumferential sequence along the direction of rotation of the impeller. This optimization improves various problems arising from the original semi-open centrifugal pumps, including low efficiency, significant loss at the inlet, inlet cavitation, separation of boundary layers at the blade inlets, narrow lift range of the dead point and excessive noise.

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Patent Owner(s)

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JIANGSU UNIVERSITYNO 301 XUEFU ROAD JINGKOU DISTRICT ZHENJIANG JIANGSU 212013

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Dong, Liang Jiangsu, CN 149 3190
Liu, Houlin Jiangsu, CN 4 3
Luo, Kaikai Jiangsu, CN 2 3
Tan, Minggao Jiangsu, CN 3 3
Wang, Kai Jiangsu, CN 565 3689
Wang, Yong Jiangsu, CN 1107 9670
Zhang, Zilong Jiangsu, CN 10 9

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