WINDMILL BLADE WITH ANTI-ICING SYSTEM Russian patent published in 2024 - IPC F03D80/40 

FIELD: wind power engineering.

SUBSTANCE: invention relates to wind power engineering, namely to means of preventing and control of icing of blades. Windmill blade contains an air duct, into which a pulse supply of an air flow directed from the blade base to its top is carried out. Air duct casing is made with perforations providing connection of inner volume of air duct with inner volume of blade. Windmill blade housing, at least in places most susceptible to blade icing, is made with perforations providing connection of inner volume of blade with outer surface of blade. Blown fluoroplastic nonwoven material is fixed on the outer surface of the blade to create a shock-wave effect on ice formation. Amplitude of airflow pulses is set by control module depending on meteorological conditions.

EFFECT: increased efficiency of wind-driven power plant due to improved aerodynamic characteristics of the blade.

4 cl, 3 dwg