Rotor blade and a wind power installation having a rotor blade

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

Patent

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Details

F03D 11/00 (2006.01) F21V 8/00 (2006.01) F21S 8/00 (2006.01)

Patent

CA 2471802

Wind power installations with rotor blades of the most widely varying kinds have already long been known. It is also known that, in certain situations, the wind power installation has to be provided with a hazard light in order to draw the attention of air traffic in the region of the wind power installation to the existence of the installation, in good time. For the above-indicated purpose it is also known for the rotor blades to be provided with mostly red warning coats of paint so that it is possible to prevent an aircraft, in particular a military aircraft, from colliding with a wind power installation or the rotor thereof. The object of the invention is to provide lighting for the rotor blade tips, which is more reliable than that proposed hitherto, wherein any damage which occurs is no longer so complicated and expensive to rectify as hitherto, but can be rectified extremely swiftly. A rotor blade of a wind power installation with a rotor blade connection to a hub of the wind power installation and a rotor blade tip at the end of the rotor blade, which is in opposite relationship to the rotor blade connection, characterised in that at least one light waveguide is laid from the rotor blade connection to the rotor blade tip.

On connaît depuis longtemps déjà les installations d'énergie éolienne comprenant des pales de rotor de tous types. On sait également que, dans certaines situations, les installations d'énergie éolienne doivent être équipées d'un phare de danger, afin d'informer à temps la circulation aérienne dans la zone de l'installation d'énergie éolienne de l'existence de cette installation d'énergie éolienne. A cette fin, on peut également appliquer de la peinture de signalisation sur les pales de rotor de façon à éviter la collision d'un avion, notamment d'un avion militaire, avec une installation d'énergie éolienne ou avec son rotor. L'objectif de la présente invention est d'utiliser un éclairage des bouts de pale de rotor plus fiable que jusqu'à présent et de pouvoir supprimer dans la mesure du possible les éventuelles détériorations de manière extrêmement rapide et plus simple qu'auparavant. Cette invention concerne une pale de rotor pour installation d'énergie éolienne comprenant un raccord de pale de rotor sur un moyeu de l'installation d'énergie éolienne et un bout de pale de rotor sur l'extrémité de la pale de rotor qui est opposée au raccord de pale de rotor, caractérisée en ce qu'au moins un guide d'ondes optiques est installé depuis le raccord de pale de rotor jusqu'au bout de pale de rotor.

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