A TRIBRID WIND TURBINE BLADE

摘要

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.

主权项

1. 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.