Blade pitch-angle control apparatus and wind turbine generator

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

Patent

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Details

F03D 1/06 (2006.01) F03D 3/06 (2006.01) B64C 11/30 (2006.01) F04D 29/36 (2006.01)

Patent

CA 2667849

A blade pitch-angle control apparatus (40) is provided which can reduce the number of machining processes required for manufacturing a hub and which improves the maintainability due to a reduction in weight of each of hydraulic cylinders (41A) and (41B). The blade pitch-angle control apparatus (40), which is used in a wind turbine generator having a plurality of blades and which individually operates the pitch angle of each of the blades, uses the two hydraulic cylinders (41A) and (41B) to operate each of the blades.

L'invention concerne un dispositif de commande de l'angle d'attaque d'une pale (40) dont l'usinage requis pour fabriquer un moyeu est réduit et dont les propriétés d'entretien sont améliorées par la réduction des poids des corps individuels des cylindres hydrauliques (41A, 41B). Le dispositif de commande de l'angle d'attaque de la pale (40) est utilisé pour un aérogénérateur présentant une pluralité de pales pour contrôler individuellement le fonctionnement de l'angle d'attaque de chaque pale. Le dispositif de commande de l'angle d'attaque de la pale utilise les deux cylindres hydrauliques (41A, 41B) par pale pour la commande.

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