WIND POWER PLANT ROTOR BLADE AND WIND POWER PLANT Russian patent published in 2017 - IPC F03D1/06 

FIELD: machine engineering.

SUBSTANCE: one first and one second aerodynamic ridges (810, 820), the first aerodynamic ridge (810) is located on the rotor blade in a radial direction with respect to the rotor rotation axis around 25% to 40% of the radial length and the second aerodynamic ridge (820) is located on the rotor blade in the radial direction relative to the rotor rotation axis around 45% to 60% of the radial length, has a leading edge (803) and a trailing edge (804) facing away from the leading edge (803). Each aerodynamic ridge (810, 820) or ridge portion (811, 812, 821, 822), respectively, increases its height (h) from the leading edge (803) to the trailing edge (804), in particular from the height (h) of 0 to 5 mm next to the leading edge (803), it continuously increases to a height (h) of more 15 mm, in particular more than 20 mm, to the trailing edge (804).

EFFECT: flow stall preventing or limiting.

11 cl, 12 dwg