Rotor blade for wind turbine, has bars connected with inner sides of rotor blade wall, and air passage surface formed by apertures and arranged at reduced distance from blade root, where one of bars comprises apertures in region of tip

摘要

The blade (10) has a blade tip (12) fixed at an end, and a blade root (14) fixed at an opposite end. Vane bars (20, 22, 24) are passed in a longitudinal direction of the blade. The bars are connected with inner sides of a suction-side and/or pressure side rotor blade wall. One of the bars has apertures (32) in a region (B) of the blade tip. An air stream (30) passed through a rear edge-side of each bars flows into a nose-edge-side region (28) through the bars. An air passage surface is formed by the apertures, and is arranged at reduced distance from the blade root.