Wind energy turbine

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

Patent

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Details

F03D 11/04 (2006.01) F03D 1/02 (2006.01)

Patent

CA 2475568

The invention relates to a wind turbine and to the installation of such a wind turbine, particularly offshore. When wind turbines are installed in the previously known manner, a tower of the wind turbine is firstly manufactured, said tower being a steel tower, a concrete tower or a lattice tower. After the tower has been erected, a machine house is mounted on the top of the tower and said machine house then consists of the entire nacelle, the generator, the rotor and other parts. Such a machine house with rotor blades attached thereto and a generator connected thereto is referred to in the following as a rotor unit. The object of the present invention is to provide technical measures enabling the installation of offshore wind turbines in almost any weather, even when waves are small or moderate in height. Wind turbine with a tower that receives a rotatably mounted support, wherein the support receives at least one and preferably a plurality of rotors that are in a plane offset from the tower, and the support is positioned such that the centre of the rotors is lower than the top of the tower.

L'invention concerne une éolienne et l'érection d'une telle éolienne, notamment en mer. Jusqu'à présent, l'érection d'une éolienne suppose d'abord la construction d'un pylône d'éolienne, ce pylône étant en acier, en béton ou sous forme de pylône en treillis. Cette pylône étant érigée, un local pour machines est construit à son sommet, ce local comprenant l'ensemble d'une nacelle en plus du générateur, du rotor et d'autres éléments de construction. Un tel local pour machines, qui comporte des pales de rotor fixées avec un générateur associé, est ci-dessous désigné unité rotor. L'invention vise à réaliser des mesures techniques qui permettent l'érection d'éoliennes en mer par presque tous les temps, même en présence de vagues faibles à moyennes. A cet effet, l'éolienne selon l'invention comprend un pylône recevant un support monté pivotant, sur lequel un et de préférence plusieurs rotors sont placés sur un plan décalé par rapport au pylône, le support étant positionné de manière à ce que le centre des rotors se trouve sous le sommet du pylône.

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