Title:
HYDROELECTRIC TURBINE AND HYDROELECTRIC GENERATOR
Document Type and Number:
WIPO Patent Application WO/2019/188646
Kind Code:
A1
Abstract:
Provided are a hydroelectric turbine and a hydroelectric generator that are capable of generating power at high efficiency and high output even when installed at sites where sufficient head cannot be ensured. Specifically provided is a hydroelectric turbine characterized by being equipped with a turbine shaft that decreases in diameter from top to bottom and a plurality of turbine blades that are formed on the surface of the turbine shaft and extend from top to bottom in a spiral shape, and in that: fluid channels are defined by mutually adjacent turbine blades; the fluid channels have, at the top end, a channel inlet for guiding in a fluid in a perpendicular direction to the axial direction of the turbine shaft, and have, at the bottom end, a fluid outlet for discharging the fluid in the axial direction of the turbine shaft; the height of each turbine blade from the surface of the turbine shaft increases along the flow direction of the fluid channel; and the area of each fluid channel decreases along the flow direction of the fluid channel.
Inventors:
SHIBATA MASAAKI (JP)
OZAKI MASAHIRO (JP)
SUGA KAZUHIKO (JP)
KAMIMURA TADAYUKI (JP)
OZAKI MASAHIRO (JP)
SUGA KAZUHIKO (JP)
KAMIMURA TADAYUKI (JP)
Application Number:
PCT/JP2019/011660
Publication Date:
October 03, 2019
Filing Date:
March 20, 2019
Export Citation:
Assignee:
EIWAT CO LTD (JP)
UNIV OSAKA PREFECT PUBLIC CORP (JP)
UNIV OSAKA PREFECT PUBLIC CORP (JP)
International Classes:
F03B3/12
Foreign References:
| JP2016037875A | 2016-03-22 | |||
| JP2011052663A | 2011-03-17 |
Attorney, Agent or Firm:
FUJII Akihiro (JP)
Download PDF: