A rotor blade for a wind turbine includes a plurality of individual blade segments, with each blade segment defining an internal passage extending between the longitudinal ends of the blade segment. A rigid spar member extends longitudinally through the internal passages of the individual blade segm
A rotor blade for a wind turbine includes a plurality of individual blade segments, with each blade segment defining an internal passage extending between the longitudinal ends of the blade segment. A rigid spar member extends longitudinally through the internal passages of the individual blade segments such that the blade segments are aligned and connected end-to-end on said spar member to define a complete rotor blade from a root to a blade tip. The spar member has a cross-sectional profile that is keyed to the cross-sectional profile of the internal passage in the blade segments. The spar member includes oppositely facing spar caps that engage against the inside surfaces of the blade segments within the internal passages.
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What is claimed is: 1. A rotor blade for a wind turbine, comprising: a plurality of individual blade segments, each said blade segment comprising first and second shell components joined at leading and trailing edges of said blade segment; each of said plurality of blade segments comprising an inte
What is claimed is: 1. A rotor blade for a wind turbine, comprising: a plurality of individual blade segments, each said blade segment comprising first and second shell components joined at leading and trailing edges of said blade segment; each of said plurality of blade segments comprising an internal passage extending longitudinally from a first end to a second end of each of said blade segments, said passage having a keyed cross-sectional profile along the length thereof between said first end and said second end; a rigid spar member extending longitudinally through said internal passages of each of said blade segments such that said plurality of blade segments are aligned and connected end to end on said spar member and define a complete rotor blade from a root that connects to a rotor hub to a blade tip; said spar member further comprising oppositely facing spar caps engaged against inside surfaces of said blade segments within said internal passages; said spar member having a cross-sectional profile corresponding to said keyed cross-sectional profile of said internal passages; and, said internal passages defined by internal webs that extend between said first and second shell components along the length of said internal passage. 2. The rotor blade as in claim 1, wherein said spar member comprises a hollow box beam structure, said spar caps defined by opposite sides of said box beam structure, and said internal passages of each of said blade segments having a corresponding box shaped cross-sectional profile. 3. The rotor blade as in claim 1, wherein said spar member comprises a hollow beam member having concave or convex walls extending between said spar caps, and said internal passages of each of said blade segments having a correspondingly shaped cross-sectional profile. 4. The rotor blade as in claim 1, wherein said spar member comprises a center web with said spar caps extending transversely from opposite longitudinal ends of said center web, and said internal passages of each of said blade segments having a correspondingly shaped cross-sectional profile. 5. The rotor blade as in claim 4, wherein said spar member and said internal passages of each of said blade segments comprise an I-beam cross-sectional profile. 6. The rotor blade as in claim 1, wherein said plurality of blade segments are bonded to said spar member. 7. The rotor blade as in claim 6, further comprising an interlocking joint between end faces of adjacent said blade segments. 8. A rotor blade kit for forming a rotor blade used on a wind turbine, comprising: a plurality of individual blade segments, each said blade segment comprising first and second shell components joined at leading and trailing edges of said blade segment; each of said blade segments comprising an internal passage extending longitudinally from a first end to a second end of each of said blade segments, said passage having a keyed cross-sectional profile along the length thereof between said first end and said second end; said internal passages defined by internal webs that extend between said first and second shell components along the length of said internal passage; a rigid spar member comprising oppositely facing spar caps, said spar member having a cross-sectional profile corresponding to said keyed cross-sectional profile of said internal passages of each of said blade segments; and wherein said plurality of blade segments are slidable onto said spar member in an ordered sequence with said spar caps engaging against inside surfaces of each of said blade segments within said internal passages to define a complete rotor blade from a root that connects to a rotor hub to a rotor blade tip. 9. The rotor blade kit as in claim 8, wherein said spar member comprises a hollow box beam structure, said spar caps defined by opposite sides of said box beam structure, and said internal passages of each of said blade segments having a corresponding box shaped cross-sectional profile. 10. The rotor blade kit in claim 8, wherein said spar member comprises a hollow beam member having concave or convex walls extending between said spar caps, and said internal passages of each of said blade segments having a correspondingly shaped cross-sectional profile. 11. The rotor blade kit as in claim 8, wherein said spar member comprises a center web with said spar caps extending transversely from opposite longitudinal ends of said center, and said internal passages of each of said blade segments having a correspondingly shaped cross-sectional profile. 12. The rotor blade kit in claim 8, further comprising an interlocking joint profile defined on end faces of each of said blade segments. 13. An individual blade segment for a wind turbine rotor blade that is formed from a plurality of said individual blade segments aligned end to end on a rigid spar member that extends through said individual blade segments, said individual blade segment comprising a closed skin structure and internal webs extending between opposite sides of said closed skin structure along the length of said blade segment, said internal webs defining an internal passage extending longitudinally between opposite ends of said blade segment, said passage having a keyed cross-sectional profile along the length of said blade segment that matches the cross-sectional profile of the spar member, and an interlocking joint profile defined on longitudinal end faces of said skin structure so that adjacent blade segments interlock on the spar member. 14. The blade segment as in claim 13, wherein said internal passage comprises box-shaped cross-sectional profile. 15. The blade segment as in claim 13, wherein said internal passage comprises concave or convex walls extending between said skin structure. 16. The blade segment as in claim 13, wherein said internal passage comprises an I-beam cross-sectional profile.
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이 특허에 인용된 특허 (3)
Bonnet,Laurent, Rotor blade for a wind energy turbine.
Caruso, Christopher Daniel; Yarbrough, Aaron A.; Hynum, Daniel Alan; Tobin, James Robert, Modular wind turbine rotor blades and methods of assembling same.
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