Title:
IMPELLER FOR UNDERSHOT WATER WHEEL
Document Type and Number:
WIPO Patent Application WO/2020/246570
Kind Code:
A1
Abstract:
Provided is an impeller for an undershot water wheel with which output can be improved on a high tip speed ratio side in comparison to a prior-art undershot water wheel. An impeller 20 for an undershot water wheel comprises: a rotational solid 24 attached to a rotating shaft 22 extending in a direction intersecting the flow of a water channel 80; a plurality of main vanes 26a, 26b, 26c, 26d, 26e, 26f, 26g, 26h provided at prescribed intervals in a peripheral direction around the peripheral edge of the rotational solid 24; and a plurality of auxiliary vanes 28a, 28b, 28c, 28d, 28e, 28f, 28g, 28h provided at prescribed intervals in the peripheral direction, nearer to the rotating shaft 22 than the main vanes 26a, etc., of the rotational solid 24. The main vanes 26a, etc., and the auxiliary vanes 28a, etc., are configured from flat plates.
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Inventors:
SASAKI SOUICHI (JP)
Application Number:
PCT/JP2020/022233
Publication Date:
December 10, 2020
Filing Date:
June 05, 2020
Export Citation:
Assignee:
UNIV NAGASAKI (JP)
International Classes:
F03B7/00
Foreign References:
| JPH0378885B2 | 1991-12-17 | |||
| JPS5799279A | 1982-06-19 |
Attorney, Agent or Firm:
YAMAGUCHI INTERNATIONAL PATENT FIRM (JP)
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