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CN101605988B 具有槽或孔形式的升力调节装置的风力涡轮机叶片 有权

具有槽或孔形式的升力调节装置的风力涡轮机叶片
摘要：
一种叶片(10)，包括：在叶片(10)的纵向上延伸的可调整的升力调节装置，以及启动装置，通过启动装置可以调整升力调节装置并从而改变叶片(10)的空气动力特性。升力调节装置被调整并设置成通过启动装置的启动，在沿叶片(10)的纵向从靠近叶片末端(14)的第一位置延伸至第一位置和根部区域(16)之间的第二位置的区域中可以减小升力，该第二位置可在叶片的纵向上变化。升力调节装置由在至少一个纵向延伸区域中设置的至少一个槽(12、13、15)或多个孔(42、43、45、52、53、55)形成，从而允许叶片(10)的内腔(22、23、25)与外部连通。升力调节装置可由一个或多个启动装置调整，从而调节从内腔(22、23、25)排放到外部的空气量以改变叶片(10)的空气动力特性。
摘要（英）：

The blade (10) comprises adjustable lift-regulating means extending in the longitudinal direction of the blade (10), and activating means by means of which the lift-regulating means can be adjusted and thus alter the aerodynamic properties of the blade (10). The lift-regulating means are adapted and arranged so that by activation of the activating means, the lift can be reduced in a zone extending in the longitudinal direction of the blade (10) from a first position in proximity to the blade tip (14) to a second position between the first position and the root area (16) and this second position being variable in the longitudinal direction of the blade. The lift-regulating means are formed of at least one slot (12, 13, 15) or a number of holes (42, 43, 45, 52, 53, 55) arranged in at least one longitudinally extending zone, thereby allowing an interior cavity (22, 23, 25) of the blade (10) to communicate with the exterior. The lift-regulating means are adjustable by means of one or moreactivating means to regulate the amount of air emitted from the interior cavity (22, 23, 25) to the exterior to alter the aerodynamic properties of the blade (10).

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