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Patent Searching and Data


Title:
BLADE PITCH ADJUSTMENT DEVICE FOR WIND POWER GENERATOR
Document Type and Number:
WIPO Patent Application WO/2018/079863
Kind Code:
A1
Abstract:
Disclosed is a blade pitch adjustment device of a wind power generator, the device comprising: a hub connected to a power generator shaft rotatably provided at the front of a nacelle of the wind power generator; a plurality of blades provided at the hub so as to be arranged symmetrically to each other around the rotational center of the power generator shaft; a pitch adjustment part provided at the hub and linking the plurality of blades to each other such that the blades can rotate relative to the hub according to wind velocity, thereby enabling the pitch angles of the blades to be adjusted; an elastic member provided between the pitch adjustment part and the hub and providing an elastic restoring force such that the plurality of blades return to the initial positions thereof when the positioning thereof is changed from the initial positions thereof; and an electronic brake selectively regulating the operation of the pitch adjustment part so as to control the relative rotations of a hub of the blades, wherein the blade includes: a blade shaft rotatably provided at the hub, and connected to the pitch adjustment part; and inner and outer blades provided at the blade shaft, and arranged at different pitch angles so as to have different resistance values for wind directions.

Inventors:
HONG, Soon Won (17-2, Dalbang-gilDonghae-si, Gangwon-do, 25742, KR)
Application Number:
KR2016/011974
Publication Date:
May 03, 2018
Filing Date:
October 24, 2016
Export Citation:
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Assignee:
YEC CO., LTD (21-130, Bondong-gil Geundeok-myeon,Samcheok-si, Gangwon-do, 25936, KR)
International Classes:
F03D7/02; F03D15/00; F03D80/80
Foreign References:
JP2014214679A2014-11-17
US20120294723A12012-11-22
KR20130038965A2013-04-19
KR20150033838A2015-04-02
KR20140042556A2014-04-07
Attorney, Agent or Firm:
TAEDONG PATENT & LAW FIRM (302 Daelim Office Valley, 282 Gamasan-ro,Guro-gu, Seoul, 08302, KR)
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