FIELD: machine engineering.
SUBSTANCE: rotor blade (2) contains a nose part (4) of the rotor blade, a back edge (6) of the rotor blade, a root zone (28) of the rotor blade for fastening the rotor blade (2) to the hub of the wind-driven power plant (100), a tip (40) of the rotor blade. The rotor blade (2) extends from the root zone (28) of the rotor blade along the longitudinal direction to the tip (40) of the rotor blade, and the rotor blade (2) comprises at least one first hollow space (18) inside, near to the nose part (4) of the rotor blade, and one second hollow space (20), near to the back edge (6) of the rotor blade, the first hollow space (18) is heated by the first and the second hollow space (20) is heated by the second heating device (30), to heat the nose part (4) of the rotor blade, respectively, the back edge (6) of the rotor blade.
EFFECT: elimination of blade icing.
13 cl, 9 dwg
