Title:
SUPPORT LEG FIXING STRUCTURE FOR VERTICAL AXIS WIND TURBINE
Document Type and Number:
WIPO Patent Application WO/2023/176310
Kind Code:
A1
Abstract:
In order to address an increase in size of a wind turbine and an increase in number of wind turbines installed, the present invention provides a support leg fixing structure for a vertical axis wind turbine which facilitates and strengthens the assembly of a support leg and a bearing part of a rotation shaft. A vertical axis wind turbine is provided with: a rotation shaft 2 that rotates about an axis that is perpendicular to the direction in which wind is received; a power generation part 6 that is connected to the rotation shaft 2 via a bearing part 3; and a plurality of blades 10 that are connected to the rotation shaft 2 and that rotate about the vertical axis. The bearing part 3 has a cylindrical housing 3d that, along the lengthwise direction of the rotation shaft 2, holds a bearing 3c which rotatably supports the rotation shaft 2. A housing receiving member 40 comprising an aluminum extruded material is fixed to the outer peripheral surface of the housing 3d of the bearing part 3. A support leg receiving member 50 comprising an aluminum extruded material is fixed to the outer peripheral surface of the housing receiving member 40, along the circumferential direction of the rotation shaft 2. An end face of a support leg 5 is in contact with and fixed to an outer surface of the support leg receiving member 50.
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Inventors:
PARK OKDAN (JP)
ISHIKAWA HIROMITSU (JP)
ONO TAKESHI (JP)
HIGAMI HIROYUKI (JP)
SAITO SHIGENORI (JP)
HARA YUTAKA (JP)
ISHIKAWA HIROMITSU (JP)
ONO TAKESHI (JP)
HIGAMI HIROYUKI (JP)
SAITO SHIGENORI (JP)
HARA YUTAKA (JP)
Application Number:
PCT/JP2023/005722
Publication Date:
September 21, 2023
Filing Date:
February 17, 2023
Export Citation:
Assignee:
NIKKEIKIN ALUMINIUM CORE TECH COMPANY LTD (JP)
NAT UNIV CORP TOTTORI UNIV (JP)
NAT UNIV CORP TOTTORI UNIV (JP)
International Classes:
F03D13/20; F03D80/70
Domestic Patent References:
| WO1994015041A1 | 1994-07-07 |
Foreign References:
| US20200149510A1 | 2020-05-14 | |||
| JP2012505536A | 2012-03-01 | |||
| US20210071646A1 | 2021-03-11 | |||
| JP2021179184A | 2021-11-18 | |||
| JP2005307850A | 2005-11-04 | |||
| JP2020029853A | 2020-02-27 | |||
| JP2018059481A | 2018-04-12 | |||
| JPH0771074A | 1995-03-14 |
Attorney, Agent or Firm:
NAKAMOTO, Kikuhiko et al. (JP)
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