Title:
INDUCER
Document Type and Number:
WIPO Patent Application WO/2013/108832
Kind Code:
A1
Abstract:
The present invention pertains to an inducer having multiple blades of the same shape, wherein the shape of the inducer enables optimal stabilization of cavitation behavior. This inducer has multiple blades of the same shape, with the tip-side blade load being greater at the front half of the blade than at the rear half. When the blade angle from the circumferential direction of the inducer is βb(degrees) and the meridian plane distance is m (millimeters), the blade angle increase rate dβb/dm is 0.2 or greater from the blade front edge to the dimensionless meridian plane position 0.15 on the tip side, and is 0.25 or greater from the blade front edge to the dimensionless meridian plane position 0.15 at the mid-span.
Inventors:
WATANABE HIROYOSHI (JP)
Application Number:
PCT/JP2013/050787
Publication Date:
July 25, 2013
Filing Date:
January 17, 2013
Export Citation:
Assignee:
EBARA CORP (JP)
International Classes:
F04D29/18; F04D29/24
Domestic Patent References:
| WO2004007970A1 | 2004-01-22 |
Foreign References:
| JP2005330865A | 2005-12-02 | |||
| JP4436248B2 | 2010-03-24 |
Other References:
ZANGENEH, M.: "A Compressible Three-Dimensional Design Method for Radial and Mixed Flow Turbomachinery Blades", INT. J. NUMERICAL METHODS IN FLUIDS, vol. 13, 1991, pages 599 - 624
See also references of EP 2806169A4
See also references of EP 2806169A4
Attorney, Agent or Firm:
WATANABE, Isamu et al. (JP)
Isamu Watanabe (JP)
Isamu Watanabe (JP)
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Claims: