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US 2004/0105752 A1Published application
Rotor blade for a wind power installation
OwnerAloys Wobbeninventor
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OwnerAloys Wobbeninventor
Estimating the term…
The present invention concerns a rotor blade for a wind power installation and a wind power installation comprising at least one rotor blade according to the invention. The smaller the surface area on which the wind acts, that is to say in particular the rotor blade area, the correspondingly lower is the load level for which the installation has to be designed and the correspondingly more easily can the rotor blade be transported. On the other hand the size of the wind power installation entails minimum dimensions which are unavoidable for operation and below which the installation dimensions may not fall. In order to provide a rotor blade which on the one hand has the aerodynamically required surface area but which on the other hand is so designed that the surface area of the rotor blade and therewith the depth thereof can be reduced in predetermined situations a part of the surface of the rotor blade is deformable or movable.
A rotor blade for a wind power installation, wherein the rotor blade is of a given surface area which in operation of the rotor blade is exposed to the wind, characterised by means for varying the size of the surface area of the rotor blade.
A rotor blade of a wind power installation comprising a first carrier structure and a surface which encloses said first carrier structure and which is aerodynamically advantageous, characterised by means for varying the size of the surface area.
A rotor blade for a wind power installation comprising:
Dependencies are inferred from the claim text.