Title:
ROTATION DEVICE AND POWER GENERATION DEVICE
Document Type and Number:
Japanese Patent JP2022117383
Kind Code:
A
Abstract:
To provide a rotary vane which receives a fluid to rotate and enables improvement of rotation efficiency.SOLUTION: A wind power generator includes rotary vanes 15 around a rotation axis. Each rotary vane 15 includes: a front vane surface 16 which curves in parallel to the rotation axis so as to protrude forward in a rotation direction; and a rear vane surface 17 which is disposed at the back surface side of the front vane surface 16, curves in parallel to the rotation axis so as to be recessed forward in the rotation direction, and has a curve depth smaller than that of the front vane surface 16. The front vane surface 16 includes: a first curved surface 19 which forms a portion away from the rotation axis and is formed forward in the rotation direction from an outer end 21 of the rotary vane 15; and a second curved surface 20 which forms a portion close to the rotation axis L1 and is formed rearward in the rotation direction from a top part 18 of the front vane surface 16 so as to connect with an inner end 22 and in which a surface length in a plan view is shorter than that of the first curved surface 19. On the first curved surface 19, recessed parts 23 are formed at a position located closer to the outer end 21 than the top part 18 of the front vane surface 16.SELECTED DRAWING: Figure 4
Inventors:
KATO MASAHARU
Application Number:
JP2021079532A
Publication Date:
August 10, 2022
Filing Date:
May 10, 2021
Export Citation:
Assignee:
ECO TECH CO LTD
International Classes:
F03D3/06; F03B3/12; F03D3/02
Attorney, Agent or Firm:
Takashi Zhangkawa
Kengo Yamauchi
Kimura Tomoko
Kengo Yamauchi
Kimura Tomoko