초록 ▼

Wind energy converting machine comprising a solid rotating ring carrying airfoils which are governed to have an optimal angle of attack to the wind approaching each of them when the wind velocity is below a chosen limit. In stronger wind the angles of attack are decreased to limit the power uptake.

Wind energy converting machine comprising a solid rotating ring carrying airfoils which are governed to have an optimal angle of attack to the wind approaching each of them when the wind velocity is below a chosen limit. In stronger wind the angles of attack are decreased to limit the power uptake. The ring is supported by stationary rollers which act as friction wheels to transfer the power to electric generators or the like. An example is described in which 90 airfoils, 30 meters high and with 3.6 meters root chord, perform a track of 200 meters diameter, at a speed of 8 m/sec. This turbine is calculated to produce 3.75 megaWatt in a wind of a velocity of 10 m/sec. or higher.

대표청구항 ▼

A method for extracting power from the wind, including the steps of: supporting plural airfoils on a circular structure which rotates by coaction of the airfoils with the wind, orienting the plural airfoils in response to wind position and as a function of the changing position of the airfoils as th

A method for extracting power from the wind, including the steps of: supporting plural airfoils on a circular structure which rotates by coaction of the airfoils with the wind, orienting the plural airfoils in response to wind position and as a function of the changing position of the airfoils as the circular structure rotates, supporting the circular structure on a plurality of roller means, extracting rotational energy from said roller means and adjusting the pressure each roller means exerts on the circular structure as a function of wind power to achieve a normalized output.