Composite wind turbine blade and method for manufacturing same
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F03D-001/06
F01D-005/14
F03D-001/00
B29D-099/00
출원번호
US-0270673
(2014-05-06)
등록번호
US-9169732
(2015-10-27)
발명자
/ 주소
Braley, Mike S.
Head, Andrew A.
Lariviere, Phillip M.
Ivers, Victor M.
출원인 / 주소
A&P Technology, Inc.
대리인 / 주소
Hahn Loeser & Parks, LLP
인용정보
피인용 횟수 :
0인용 특허 :
26
초록▼
A wind turbine blade may include a plurality of longitudinal composite members each having a fiber and resin layer around a predetermined cross-sectional shape and each comprising at least one longitudinal outer surface and at least one longitudinal mounting surface, each of the outer surfaces of th
A wind turbine blade may include a plurality of longitudinal composite members each having a fiber and resin layer around a predetermined cross-sectional shape and each comprising at least one longitudinal outer surface and at least one longitudinal mounting surface, each of the outer surfaces of the plurality of longitudinal composite members corresponding to a different portion of a desired airfoil shape, the plurality of longitudinal composite members assembled such that the outer surfaces of the composite members form at least a majority of the airfoil shape. An outer skin may be provided. The composite members may be made up of transportable segments. A method of assembly may include transporting the segments to a desired location such as an installation site for assembly of the wind turbine blade at the installation site.
대표청구항▼
1. A wind turbine blade comprising a plurality of longitudinal composite members comprising a first longitudinal composite member comprising, a first fiber and resin layer braided around a predetermined cross-sectional shape,a longitudinal outer surface corresponding to a first portion of an exterio
1. A wind turbine blade comprising a plurality of longitudinal composite members comprising a first longitudinal composite member comprising, a first fiber and resin layer braided around a predetermined cross-sectional shape,a longitudinal outer surface corresponding to a first portion of an exterior surface of an airfoil, anda longitudinal mounting surface, anda second longitudinal composite member comprising, a second fiber and resin layer braided around a predetermined cross-sectional shape, anda longitudinal outer surface corresponding to a second portion of an exterior surface of the airfoil, anda longitudinal mounting surface; andwherein the plurality of longitudinal composite members are assembled to form an interior structure assembly of the wind turbine blade such that the outer surfaces of the composite members form a majority of an airfoil surface of the wind turbine blade. 2. The wind turbine blade of claim 1, wherein the longitudinal mounting surface of the first longitudinal composite member is opposite the longitudinal mounting surface of the second longitudinal composite member with the first fiber and resin layer and the second fiber and resin layer therebetween. 3. The wind turbine blade of claim 2 further comprising: the fiber and resin layer of the longitudinal composite members comprising a triaxial braided sleeve. 4. The wind turbine blade of claim 3 further comprising the fiber and resin layer of the longitudinal composite members comprising a braided sleeve comprising fibers having a bias angle in one direction less than the bias angle in the other direction. 5. The wind turbine blade of claim 3 wherein at least one bias angle is greater than 45 degrees. 6. The wind turbine blade of claim 3 further comprising an outer skin over the assembly of longitudinal composite members comprising a fiber and resin layer. 7. The wind turbine blade of claim 6 wherein the fiber in the outer skin comprises a continuous, contoured braided sleeve. 8. The wind turbine blade of claim 7 wherein at least one of the plurality of longitudinal composite members comprises a variable cross section along its length. 9. The wind turbine blade of claim 7 wherein each of the longitudinal composite members comprises a plurality of segments joined end to end. 10. The wind turbine blade of claim 9 wherein at least one of the segments comprises a constant cross sectional shape along its length. 11. The wind turbine blade of claim 9 wherein the segments of the longitudinal composite members are less than about 40 feet in length. 12. The wind turbine blade of claim 11 wherein, the wind turbine blade is longer than 60 feet in length. 13. A method of manufacturing a wind turbine blade comprising: providing a plurality of longitudinal composite members comprising a first longitudinal composite member comprising, a first fiber layer braided around a predetermined cross-sectional shape,a longitudinal outer surface corresponding to a first portion of an exterior surface of an airfoil, anda longitudinal mounting surface, anda second longitudinal composite member comprising, a second fiber layer braided around a predetermined cross-sectional shape,a longitudinal outer surface corresponding to a second portion of an exterior surface of the airfoil, anda longitudinal mounting surface; andassembling the plurality of longitudinal composite members to form an interior structure assembly of the wind turbine blade such that the outer surfaces of the composite members form a least a majority of an airfoil surface of the wind turbine blade. 14. The method of manufacturing a wind turbine blade of claim 13, further comprising: prior to assembling the plurality of longitudinal composite members,infusing resin into the first fiber layer and curing the resin, andinfusing resin into the second fiber layer and curing the resin. 15. The method of manufacturing a wind turbine blade of claim 13, wherein assembling the plurality of longitudinal composite members comprises: infusing resin into the first fiber layer;infusing resin into the second fiber layer;assembling the first longitudinal composite member and the second longitudinal composite member such that the mounting surface of the first longitudinal composite member is adjacent to and opposite the mounting surface of the second longitudinal composite member with the first fiber layer and the second fiber layer therebetween;curing the resin in the first fiber layer; andcuring the resin in the second fiber layer. 16. The method of manufacturing a wind turbine blade of claim 13, wherein the first longitudinal composite member comprises a plurality of segments, andthe second longitudinal composite member comprises a plurality of segments; the method further comprising, assembling the segments of the first longitudinal composite member to form the first longitudinal composite member, andassembling the segments of the second longitudinal composite member to form the second longitudinal composite member. 17. The method of manufacturing a wind turbine blade of claim 13, wherein the first longitudinal composite member comprises a plurality of segments, andthe second longitudinal composite member comprises a plurality of segments; the method further comprising, prior to the step of assembling the plurality of longitudinal composite members, transporting the plurality of segments to a desired location, andassembling the segments to form the plurality of longitudinal composite members. 18. The method of manufacturing a wind turbine blade of claim 17, comprising: providing an outer skin over the interior structure assembly, the outer skin comprising a fiber and resin layer. 19. The method of manufacturing a wind turbine blade of claim 13, comprising: providing an outer skin over the interior structure assembly, the outer skin comprising a fiber and resin layer. 20. A kit for making a wind turbine blade comprising: a plurality of sets of segments adapted to be joined to form a plurality of longitudinal composite members, the plurality of sets of segments comprising, a first set of segments adapted to be joined end to end to form a first longitudinal composite member, the first longitudinal composite member comprising a first fiber layer braided around a predetermined cross-sectional shape, a longitudinal outer surface corresponding to a first portion of an exterior surface of an airfoil;a second set of segments adapted to be joined end to end to form a second longitudinal composite member, the second longitudinal composite member comprising a second fiber layer braided around a predetermined cross-sectional shape, a longitudinal outer surface corresponding to a second portion of an exterior surface of the airfoil;the plurality of longitudinal composite members being adapted to be assembled such that the outer surfaces of the longitudinal composite members form a majority of the airfoil surface of the wind turbine blade. 21. The kit for making a wind turbine blade of claim 20, further comprising: a fiber layer adapted for enveloping the plurality of longitudinal composite members after assembly; andforming an outer skin comprising a fiber and resin layer. 22. The kit for making a wind turbine blade of claim 21, wherein the fiber layer is a continuous, contoured braided sleeve. 23. The kit for making a wind turbine blade of claim 20, wherein the plurality of longitudinal composite members is adapted to be assembled by infusing resin into the first fiber layer and the second fiber layer.
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