ROTOR-TYPE WINDMILL Russian patent published in 2011 - IPC F03D3/06 

FIELD: engines and pumps.

SUBSTANCE: proposed windmill comprises vertical shaft with vanes rigidly attached thereto made up of a hollow cylinder articulated with moving vanes. Brackets jointed with vertical plates are rigidly connected to the vanes, outside their convex surfaces. Rubber plates are secured to said vertical plates and stay in contact with moving vanes. At the centre of vane concave surfaces, bores are made to receive tapered sleeves with balls to be press-fitted therein with cross piece located outside.

EFFECT: higher efficiency and reliability due to increased starting moment and operation at wind optimum speeds.

3 dwg