Title:
ロータブレード
Document Type and Number:
Japanese Patent JP6684122
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a rotor blade that is lightweight, excellent in rigidity and suitable for a large-sized wind turbine.SOLUTION: In a lift-type blade for a wind turbine, an airtight covering material 9 is bonded around a frame 7 formed into a blade shape where a plurality of transverse ribs 6 are arranged in a multi-layer at desired intervals in a vertical core body 5 disposed in the central part thereof so that compressed air can be hermetically sealed therein.SELECTED DRAWING: Figure 1
Inventors:
Masahiko Suzuki
Application Number:
JP2016057234A
Publication Date:
April 22, 2020
Filing Date:
March 22, 2016
Export Citation:
Assignee:
ntn corporation
International Classes:
F03D3/06
Domestic Patent References:
| JP2014101790A | ||||
| JP2005030375A | ||||
| JP2011163349A |
Foreign References:
| US20100054950 | ||||
| CN105298739A |
Attorney, Agent or Firm:
Soichi Takezawa
Masaru Takenouchi
Yoshinori Yokobori
Masaru Takenouchi
Yoshinori Yokobori