Title:
揚力型垂直軸風水車
Document Type and Number:
Japanese Patent JP7040792
Kind Code:
B2
Abstract:
A water or wind turbine in which fatigue fracture is less likely to be generated in a rotation shaft is provided. A wind turbine comprises: a rotation shaft extending in the vertical direction; a plurality of arms extending horizontally from the rotation shaft and formed at equal intervals along the rotation direction; and a plurality of wings attached to tips of the arms and extending in the upper/lower direction, and the rotation shaft is rotated by lift generated on the wings, wherein cross sections of the wings have a uniform shape and a uniform area from upper ends of the wings to lower ends of the wings, wherein seen from the extending direction of the rotation shaft, the plurality of wings are projected on the entire circumference of a single virtual circular ring C whose center is on the rotation shaft, and wherein lengths of the wings in the vertical direction are equal over the entire circumference.
Inventors:
Rikiya Abe
Takahiko Ito
Takahiko Ito
Application Number:
JP2019188506A
Publication Date:
March 23, 2022
Filing Date:
October 15, 2019
Export Citation:
Assignee:
Rikiya Abe
International Classes:
F03D3/06; F03B3/14; F03B13/26; F03B17/06; F03D7/04
Domestic Patent References:
| JP2013541675A | ||||
| JP2017120050A |
Attorney, Agent or Firm:
Towa International Patent Office