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Title:
WATER TURBINE AND SMALL HYDROELECTRIC GENERATOR
Document Type and Number:
WIPO Patent Application WO/2019/189107
Kind Code:
A1
Abstract:
A water turbine (1), having water turbine blades (5) in which a plurality of vanes (5a) is provided in a radiating shape at equal intervals. The water turbine (1) is disposed so that the rotary center shaft (O) of the water turbine blades (5) aligns with the flow direction of a water passage (3). In front view, each of the blades (5a) is shaped so as to expand from the root to the tip. A flow speed adjustment member (12) for increasing the water flow resistance of the center part of the water turbine blades and increasing the flow speed of the water passage (3) at the water turbine blades outer periphery part is provided at the radial center part on the front side of the water turbine blades (5).

Inventors:
GOTO, Tomomi (105 Hidamarinooka 5-chome, Kuwana-sh, Mie 67, 〒5110867, JP)
KONDOU, Hiromitsu (105 Hidamarinooka 5-chome, Kuwana-sh, Mie 67, 〒5110867, JP)
MUKAI, Hiroki (105 Hidamarinooka 5-chome, Kuwana-sh, Mie 67, 〒5110867, JP)
Application Number:
JP2019/012734
Publication Date:
October 03, 2019
Filing Date:
March 26, 2019
Export Citation:
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Assignee:
NTN CORPORATION (3-17, Kyomachibori 1-chome Nishi-ku, Osaka-sh, Osaka 03, 〒5500003, JP)
International Classes:
F03B3/12
Foreign References:
JP2017020372A2017-01-26
KR20110107885A2011-10-05
JPH0643267U1994-06-07
JP2012041920A2012-03-01
US20120082544A12012-04-05
Attorney, Agent or Firm:
SUGIMOTO, Shuji et al. (Higobashi Nittai Bldg, 10-2 Edobori 1-chome, Nishi-ku, Osaka-sh, Osaka 02, 〒5500002, JP)
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