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US 2016/0108736 A1Published application
A 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.
Claims17
A wind turbine blade having a root portion, a mainboard portion, and a tip portion, wherein:
- the root portion comprises at least one substantially load-bearing spar structure having at least one aerodynamic shell coupled to said spar structure;
- the mainboard portion comprises a load-bearing aerodynamic shell;
- and
- the tip portion comprises an integrally-formed tip element.
1 more element
A method of manufacturing a wind turbine blade comprising the steps of:
- providing a blade root portion by manufacturing a load-bearing spar structure and fitting at least one aerodynamic shell to said load-bearing internal spar structure;
- providing a blade mainboard portion by manufacturing portions of a load bearing shell in a negative mould and assembling said portions of a load bearing shell to form said blade mainboard portion, preferably comprising at least one internal bridging spar or web extending between adjacent portions of said load bearing shell;
- providing a blade tip portion by manufacturing a single tip element using an integral moulding procedure;
- and
- assembling said blade root portion, said blade mainboard portion, and said blade tip portion to form a wind turbine blade.
2 more elements
Dependencies are inferred from the claim text.