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US 10,947,852 B2Granted
Tribrid wind turbine blade
AssigneeLm Wp Patent Holding A/S
InventorRoel Schuring
Life of this patent
Estimating the term…
Abstract
A tribrid wind turbine blade is described, wherein the blade is formed from three separate parts made using three different manufacturing approaches. A root section of the blade is formed by a load-bearing central spar having an aerodynamic shell or fairing fitted to the spar. A mainboard portion is formed from a load-bearing shell structure. A tip portion is formed as an integrally-formed element from a one-shot closed moulding process.
Claims19
A wind turbine blade comprising a root portion, a mainboard portion, and a tip portion,
- wherein the root portion comprises at least one load-bearing spar structure having at least one non-load-bearing aerodynamic fairing coupled to said at least one load-bearing spar structure,
- wherein the mainboard portion comprises a load-bearing aerodynamic shell, the load-bearing aerodynamic shell having a suction-side blade shell and a pressure-side blade shell, the suction-side blade shell comprising a load-bearing main laminate integral to the suction-side blade shell, the pressure-side blade shell comprising a load-bearing main laminate integral to the pressure-side blade shell, wherein at least one shear web extends between an internal surface of the load-bearing main laminate of the suction-side blade shell and an internal surface of the load-bearing main laminate of the pressure-side blade shell, and
- wherein the tip portion comprises an integrally-formed tip element formed as a one-piece shell from an integral molding process,
- wherein the root portion, the mainboard portion and the tip portion are manufactured as individual and separate portions with respect to one another, the root portion, the mainboard portion and the tip portion being individually and distinctly attached to one another to form the blade.
1 more element
Dependencies are inferred from the claim text.