INFLATABLE/DEFLATABLE WIND TURBINE BLADE STRUCTURE

Title:

INFLATABLE/DEFLATABLE WIND TURBINE BLADE STRUCTURE

Document Type and Number:

WIPO Patent Application WO/2013/040879

Kind Code:

A1

Abstract:

An inflatable/deflatable wind turbine blade structure comprising a blade (11), a wind turbine wheel (14), and a wind turbine main shaft (15). The blade (11) and the wind turbine wheel housing (14) are connected, while the wind turbine wheel housing (14) is arranged on the wind turbine main shaft (15). The blade (11) comprises a frame beam (1), a front wing panel (2), and a rear wing airbag (3). The frame beam (1) is provided with a channel section, constituted by a vertical side plate (10) and upper and lower side plates. The frame beam (1) employs a constant section along a lengthwise direction of the blade (11), or employs a variable section gradually decreasing in size. The rear wing airbag (3) and the vertical side plate (10) are connected via a bolt. The rear wing airbag (3) is provided thereon with an inflation valve (4) and a deflation valve (8). The front wing panel (2) is fixed to the upper and lower side plates of the frame beam (1). Consisting of the frame beam (1), the front wing panel (2), and the rear wing panel (3), the cross section of the blade (11) is provided with an aerodynamically streamlined shape and structure. The structure has the advantages of reduced manufacturing and maintenance costs, and of improved safety.

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Inventors:

ZENG PAN (CN)

Application Number:

PCT/CN2012/072488

Publication Date:

March 28, 2013

Filing Date:

March 16, 2012

Export Citation:

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Assignee:

UNIV TSINGHUA (CN)
ZENG PAN (CN)

International Classes:

F03D11/00

Foreign References:

CN102322408A	2012-01-18
CN102052259A	2011-05-11
CN101000041A	2007-07-18
CN1796772A	2006-07-05
EP2025928A2	2009-02-18

Attorney, Agent or Firm:

BEIJING GRANDERIP LAW FIRM (CN)
北京鸿元知识产权代理有限公司 (CN)

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