Title:
CENTRIFUGAL IMPELLER AND CENTRIFUGAL FLUID MACHINE
Document Type and Number:
WIPO Patent Application WO/2020/049810
Kind Code:
A1
Abstract:
Provided are a centrifugal impeller having a structure enabling an increase in peripheral speed thereof, and a centrifugal fluid machine provided with the same. A hollow part 112 is provided in a blade 102 of a centrifugal impeller of a centrifugal fluid machine constituted by a hub, a plurality of blades, and a shroud. The hollow part 112 is formed in the blade 102 in such a way that the hollowness of the blade 102 becomes minimum at a portion opposing a portion having a maximum curvature on the flow path side surface of the shroud and becomes higher with increasing distance from the portion having the maximum curvature on the flow path side surface of the shroud.
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Inventors:
ISOSAKI YOHEI (JP)
NISHIOKA TAKAHIRO (JP)
NARUSE TOMOHIRO (JP)
KAWASHITA MICHIHIRO (JP)
AOYAMA HIROSHI (JP)
TANNO YOUHEI (JP)
NISHIOKA TAKAHIRO (JP)
NARUSE TOMOHIRO (JP)
KAWASHITA MICHIHIRO (JP)
AOYAMA HIROSHI (JP)
TANNO YOUHEI (JP)
Application Number:
PCT/JP2019/021261
Publication Date:
March 12, 2020
Filing Date:
May 29, 2019
Export Citation:
Assignee:
HITACHI INDUSTRIAL PRODUCTS LTD (JP)
International Classes:
F04D29/24; F04D29/22; F04D29/30
Foreign References:
| JPS55500608A | 1980-09-04 | |||
| JP2011127572A | 2011-06-30 | |||
| JPS6018243A | 1985-01-30 | |||
| JP2015055219A | 2015-03-23 |
Attorney, Agent or Firm:
POLAIRE I.P.C. (JP)
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