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AssigneeFraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
InventorsMalo Rosemeier, Moritz Bätge, Matthias Lindermann
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A wind turbine rotor blade extension fitting element, which extension fitting element is designed as a rotor blade rib with a recess and which can be pushed onto the rotor blade tip of a rotor blade to be extended, in such a way that the rotor blade tip protrudes through the recess and contacts the circumferential surface of the recess in an positive-locking manner. The extension fitting element has, on its outer circumference, an outer circumferential surface onto which a shell-like rotor blade extension can be pushed in an positive-locking manner. A core of the extension fitting element has slits and/or boreholes which, for stabilization, are filled with a material that has a higher strength and/or stiffness than the material of the core. In this way, the extension fitting element is strengthened for the transfer of high loads.
An extension fitting element for a rotor blade of a wind turbine, which extension fitting element is configured as a rotor blade rib with a recess and which can be pushed onto a rotor blade tip of a rotor blade to be extended, in such a way that the rotor blade tip protrudes through the recess and contacts a circumferential surface of the recess in a positive-locking manner, wherein the extension fitting element has, on its outer circumference, an outer circumferential surface onto which a rotor blade extension can be pushed in a positive-locking manner,
A method for producing an extension fitting element for a rotor blade of a wind turbine, which extension fitting element is formed as a rotor blade rib with a recess and which can be pushed onto a rotor blade tip of a rotor blade to be extended, in such a way that the rotor blade tip protrudes through the recess and contacts a circumferential surface of the recess in a positive-locking manner,
Dependencies are inferred from the claim text.