Patent ID: 11933271
Assignee: nan
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 0:
1. A vertical axis windmill turbine, comprising:
a support structure for supporting the vertical axis windmill turbine above ground level;
at least one rotor for rotating upon the support structure, the at least one rotor comprising a horizontal structure having a rotational axis perpendicular to the ground level;
a plurality of blades positioned within each of the at least one rotor for causing the at least one rotor to rotate on the support structure responsive to wind force;
a plurality of vanes located on each of the plurality of blades, the plurality of vanes rotating between an open position to limit drag on the at least one rotor and a closed position that provides a rotational force to the at least one rotor, the plurality of vanes rotating between the open position and the closed position responsive to a wind force, wherein an angle between the open position and the closed position comprises approximately 180 degrees;
a plurality of hinges, each of the hinges connecting a vane of the plurality of vanes to a blade of the plurality of blades, wherein the plurality of hinges have a biasing force applied thereto to slow movement of the connected vane when approaching 0 degrees and 180 degrees, respectively; and
a plurality of vane stops associated with each of the plurality of blades to prevent the vane from moving past approximately 0° and approximately 180°.