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Patent Searching and Data


Title:
IMPELLER FOR CENTRIFUGAL PUMP AND CENTRIFUGAL PUMP
Document Type and Number:
WIPO Patent Application WO/2014/049665
Kind Code:
A1
Abstract:
An impeller for a centrifugal pump is provided with a single blade with a winding angle set to less than 360°. When the winding angle at the leading edge of the single blade is defined as 0 and the winding angle at the trailing edge thereof is defined as 1, the increment of the radius from the center of the impeller of the acting face of the single blade with respect to an increase in the winding angle of the single blade becomes a negative value within a predetermined winding angle range, and the increment of the radius from the center of the impeller of the mean line of the single blade with respect to the increase in the winding angle of the single blade becomes a negative value within the predetermined winging angle range.

Inventors:
SHIMIZU, Hiromasa (1-1, Shinmeiwa-cho, Takarazuka-sh, Hyogo 50, 〒6658550, JP)
SATO, Kotaro (1-1, Shinmeiwa-cho, Takarazuka-sh, Hyogo 50, 〒6658550, JP)
TACHIBANAKI, Takahisa (1-1, Shinmeiwa-cho, Takarazuka-sh, Hyogo 50, 〒6658550, JP)
Application Number:
JP2012/006232
Publication Date:
April 03, 2014
Filing Date:
September 28, 2012
Export Citation:
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Assignee:
SHINMAYWA INDUSTRIES, LTD. (1-1 Shinmeiwa-cho, Takarazuka-shi Hyogo, 50, 〒6658550, JP)
International Classes:
F04D29/24; F04D7/04
Foreign References:
JPS6124716Y2
JPS586988U
JP2005036778A
JP2011236915A
Attorney, Agent or Firm:
MAEDA & PARTNERS (Osaka-Marubeni Bldg.5F, 5-7 Hommachi 2-chome, Chuo-ku, Osaka-sh, Osaka 53, 〒5410053, JP)
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