Low-cost molded wind turbine blade

摘要

An optimally-shaped single part molded wind turbine blade is provided for small wind turbines. Two mold bodies are brought together to form a cavity, and a third retractable mold body is inserted into the cavity. A flowable material such as filled thermoplastic resin is introduced into the space between the mold bodies and solidified. The retractable mold body is retracted and the mold is opened to reveal a single-part wind turbine blade with a hollow root region.

主权项

1. A method of forming a wind turbine blade, the method comprising:
bringing a first mold body into proximity with a second mold body; positioning a third, retractable mold body between the first and second mold bodies; inducing a molten resin material to flow in the space between the mold bodies, via an injection molding machine, the flowable material subsequently becoming substantially non-flowable, and retracting the third mold body and separating the first and second mold bodies to release the wind turbine blade, and wherein at least one of the first two mold bodies further comprises at least one pin positioned to stabilize the third mold body while the molten resin material flows.