WIND ENGINE Russian patent published in 2023 - IPC F03D3/04 

FIELD: wind power engineering.

SUBSTANCE: invention relates to wind power engineering, in particular to a rotary-type wind engine with a small angular rotation speed of a wind wheel, which is designed to drive two electric generators. The wind engine contains two wind wheels with blades mounted on two horizontal shafts, which are connected by permanent couplings to two ends of a drive shaft of a transfer bevel gear. A driving bevel wheel is fixed to the drive shaft, which engages with two driven wheels, horizontal shafts of which are connected by permanent couplings to input shafts of two units. Each unit consists of a multiplier with a wave gear and an electric generator, wherein one of generators can operate in an electric engine mode, stabilizing operation of the other electric generator in low wind. Combined shafts of wind wheels are displaced from the axis of rotation of a frame in the direction of wind by calculated amount, which forms an arm of a frame rotation lever under the action of a wind force orienting blades of wind wheels in the direction of wind. In this case, blades of wind wheels are located symmetrically from the axis of rotation of the frame. Each blade is attached to its wind wheel shaft by means of a device for rotation of the blade in the direction of wind, a pin, and a common hub of pins. The device for rotation of the blade consists of two corners along a width of the blade, connected by two loops. Torsion springs are installed on axes of loops in such a way that one end of the spring rests on one corner, the other end rests on the other corner. The blade of the wind wheel is attached to one corner, and the other corner is attached to an upper end of the wheel pin. Twisting of springs is determined by the difference in moments of wind pressure on upper and lower parts of a working surface of the blade relatively to the axis of its rotation. Blades of a lower semicircle of the wind wheel, rotating against the wind, are closed by two windscreens: front and rear.

EFFECT: increase in the efficiency of use of a wind flow at different wind strengths.

2 cl, 6 dwg