FIELD: engines and pumps.
SUBSTANCE: invention relates to wind power engineering and can be used for power supply of various independent power consumers. Windmill comprises tower with sail - semi-confuser pivoted thereto to vary angle of attack with the help of spring or counterweight, multi-blade wind wheel fitted at the sail end, in its narrow section, to turn on said pivot in proportion to wind pressure. Aforesaid sail - confuser is fixed on the tower at an angle to wind and furnished with pivoted central flaps and lateral flaps arranged in its narrow section to form slit-like openings to catch flow reflected from the sail and eject additional flow to be directed to wind wheel.
EFFECT: self-orientation, wind wheel rpm stabilisation, higher wind power utilisation factor.
2 dwg
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