Title:
翼車および自然エネルギー発電機
Document Type and Number:
Japanese Patent JP6537858
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a blade wheel and a natural energy generator which can improve conversion efficiency in converting energy received by a blade into rotation energy and improve strength of the blade in the blade wheel.SOLUTION: A blade wheel includes a main shaft rotatable about a shaft center, supporting bodies integrated with the main shaft, and blades 24 connected to the main shaft through the supporting bodies and rotated about a shaft center concentric to the shaft center of the main shaft, by receiving wind or water. The blade 24 has a straight portion 28 extended in parallel with the main shaft, and blade tip portions 29 extended from both end portions of the straight portion 28. The cross-section of the blade tip portion 29 obtained by cutting the blade tip portion at a plane including the shaft center of the vertical main shaft, has the cross-sectional shape inclined in several stages from a base end toward a tip to approach the main shaft side.SELECTED DRAWING: Figure 3
Inventors:
Tomoya Kawai
Masatoshi Mizutani
Masatoshi Mizutani
Application Number:
JP2015055735A
Publication Date:
July 03, 2019
Filing Date:
March 19, 2015
Export Citation:
Assignee:
ntn corporation
International Classes:
F03D1/06; F03B3/12; F03D3/06
Domestic Patent References:
| JP2009275536A | ||||
| JP3187822U |
Foreign References:
| US20130251535 | ||||
| CN103527404A | ||||
| US20080267777 |
Attorney, Agent or Firm:
Masashi Noda
Shuji Sugimoto
Shuji Sugimoto