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Wind Turbine Blade with Pocket-Shaped Drag Portion, Reversed-Orientation Airfoil Trailing Same, and Auxiliary Blade Supports
Wind Turbine Blade with Pocket-Shaped Drag Portion, Reversed-Orientation Airfoil Trailing Same, and Auxiliary Blade Supports
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机译:带有叶片形阻力部分的风轮机叶片,后向翼型相同的反向翼型和辅助叶片支架
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摘要
A unique wind turbine blade features a drag element having a concave surface for impingement of airflow thereagainst to create a drag force, and an airfoil having a rounded edge and an opposing sharper edge. The sharp edge points toward the drag element from a side thereof to which the concave surface faces, and the rounded edge points away from the drag element on the same side thereof as the sharp edge such that the sharp edge leads the rounded edge under movement of the drag element by the drag force. A unique wind turbine features an auxiliary support bearing disposed at a spaced axial distance from the rotor, and an auxiliary blade support connection spanning from the auxiliary bearing to the blade at a distance spaced axially from where a rotor blade support connects to said blade.
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