Title:
縦長ブレード及び縦軸ロータ
Document Type and Number:
Japanese Patent JP6997580
Kind Code:
B2
Abstract:
The purpose of the present invention is to provide: a lift-type long blade that has, on a blade end thereof, an inward inclined portion having an inclination base end the angle of which is inclined with respect to the horizontal direction such that the rear edge side of the inward inclined portion is inclined in a direction toward the blade end; and a vertical-axis rotor provided with the long blade. Inward inclined portions 3, 4 are formed on blade ends of a lift-type long blade 1, and a rear edge 6B of an inclined base end line 6 that is disposed inside each of the inward inclined portions 3, 4 is inclined toward the blade end 3A, 4A, compared to the positon of a front edge 6A.
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Inventors:
Suzuki Masahiko
Application Number:
JP2017197625A
Publication Date:
January 17, 2022
Filing Date:
October 11, 2017
Export Citation:
Assignee:
ntn corporation
International Classes:
F03D3/06
Domestic Patent References:
| JP2011169292A | ||||
| JP2010096074A | ||||
| JP2016205204A | ||||
| JP2012132335A | ||||
| JP2011169267A | ||||
| JP2004084590A | ||||
| JP2014507605A |
Foreign References:
| CN102748207A |
Attorney, Agent or Firm:
Soichi Takezawa
Takenouchi Masaru
Yoshinori Yokobori
Takenouchi Masaru
Yoshinori Yokobori