Wind turbine blade noise reduction teeth with stiffening rib
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United States of America Patent
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Feb 26, 2013
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Sep 24, 2012
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Abstract
A wind turbine blade with a noise reducing device in the form of a serrated trailing edge, whereby said serrated trailing edge comprises stiffening ribs is provided. In one embodiment, the diameter of the stiffening ribs gradually decreases towards the outer end of the trailing edge. In a further embodiment, the stiffening ribs have rounded edges. In still a further embodiment, the serrated trailing edge has teeth, whereby a tooth is provided with a stiffening rib. In another embodiment, a wind turbine including a tower is provided, wherein an electrical generator with a rotor shaft and a hub to which wind turbine blades are connected, and wherein the wind turbine comprises wind turbine blades.
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