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Measurements of Axial and Radial Thrust Forces Working on a Three-Stages Centrifugal Pump Rotor

[+] Author Affiliations
Tetsuya Yamashita, Satoshi Watanabe, Yoshinori Hara

Kyushu University, Fukuoka, Japan

Hiroyoshi Watanabe

Ebara Corporation, Futtu, Japan

Kazuyoshi Miyagawa

Waseda University, Tokyo, Japan

Paper No. AJKFluids2015-33515, pp. V01AT33A013; 6 pages
  • ASME/JSME/KSME 2015 Joint Fluids Engineering Conference
  • Volume 1A: Symposia, Part 2
  • Seoul, South Korea, July 26–31, 2015
  • Conference Sponsors: Fluids Engineering Division
  • ISBN: 978-0-7918-5721-3
  • Copyright © 2015 by JSME


In this study, radial and axial thrust forces working on the whole rotor in a three-stages centrifugal pump are measured in a wide range of flow rate. The forces are measured at two floating journal bearings and one floating ball bearing, which are supported by the individual load cells. The effects of the offset of rotor position in the axial direction on the thrust forces are investigated. It is found that the effect of the axial offset is significant for the axial thrust force in the low flow rate range, whereas it has little influence on the head and efficiency performances in the whole flow rate range.

Copyright © 2015 by JSME



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