Lightweight composite truss wind turbine blade

F - Mech Eng,Light,Heat,Weapons – 03 – D

Patent

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F03D 1/06 (2006.01) B29C 70/68 (2006.01) F03D 11/04 (2006.01)

Patent

CA 2681469

A lightweight wind turbine blade formed with a truss support structure assembly of composite truss joints including composite spar and cross members attached to and supporting in spaced relation a spine of lightweight rib panels. The rib panels are oriented in parallel spaced relation from one another and individually molded with perimeters defining individual areas of curvature for the finished blade assembly. The truss support structure is covered with a lightweight fiberglass or hardened fabric skin attached to and fitted on respective rib panel edges forming an airfoil structure.

L'invention concerne une pale d'éolienne légère formée d'un ensemble de structure de poutre constituée de liaisons de support composites incluant des éléments composites de longerons et de traverses reliés à une arête de légers panneaux de nervure et la supportant dans une disposition espacée. Les panneaux de nervure sont orientés dans une disposition espacée parallèlement les uns aux autres et sont individuellement moulés, des périmètres définissant des zones de courbure individuelles de l'ensemble de pale fini. La structure de support est recouverte d'une peau de fibre de verre légère ou de tissu durci reliée aux bords des panneaux de nervure respectifs et agencée sur ceux-ci pour former une structure aérodynamique.

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