FIELD: wind energy.
SUBSTANCE: invention relates to a rotor blade for a wind power plant as well as a wind power plant with a tower, a nacelle and a rotor, and is also connected with a wind farm. The rotor blade (108) contains an inner section (2) of the blade, which starts from the root (1) of the rotor blade and extends in the longitudinal direction of the rotor blade (108), and a segment of the trailing edge (40, 74, 112, 112’) located on the inner section (2) of the blade to increase the depth of the profile of the rotor blade (108) along the section in the longitudinal direction of the rotor blade. The specified rotor blade (108) has a surface (4, 48) on the pressure side and a surface (6, 50) on the vacuum side, each of which in separate sections is formed from parts of the inner section (2) of the blade and a segment (40, 74, 112, 112’) of the trailing edge. There is at least one air inlet (22, 22’, 66) and at least one air outlet (24, 68) extending in the longitudinal direction of the rotor blade on the surface (4) on the pressure side and on the surface (6) on the vacuum side of the rotor blade (108) in the area of the segment (40, 74, 112, 112’) of the trailing edge. The air inlet and the air outlet are connected to each other with the passage of a fluid, and there is at least one closing element (26, 26’, 60) overlapping at least one air outlet (24, 68) on the surface (6) on the vacuum side. The closing element makes it possible for the air outlet (24, 68) to be locked or opened.
EFFECT: invention makes the functioning of a rotor blade for a wind power plant more effective.
19 cl, 10 dwg
