WINDMILL Russian patent published in 2004 - IPC

FIELD: wind-power engineering.

SUBSTANCE: proposed windmill contains two flexible drives, each including driving and driven members, for instance, sprockets located on skeleton made in form of two flat trusses installed in parallel and inner connected by axles-braces and consisting of hinge connected links, and two traction members enclosing driving and driven members on which blades are hinge secured. Skeleton is installed on base moving along circular rails and equipped with operating mechanism. Driving members are connected with generator by belt drive. Automatic control unit and generator output power pickup are mounted on base. Speed and flow direction pickups and mechanism to change angle of incidence are installed in upper part of skeleton. Mechanism to change angle of incidence is provided with articulated links with fitted-in sliders and slider stops. One of articulated links is made for adjusting its length. Unit is coupled with pickups, operating mechanism and adjustable length articulated link. Mechanism for setting working spans of traction members in direction of total aerodynamic force includes electric motor, reduction gear, two bevel drives, distributing mechanism including two relatively perpendicular bevel pairs and adjusting screws with located on axles of bevel pairs. Invention is aimed at increasing efficiency by using total aerodynamic force acting onto blade to shift traction member and increasing efficiency owing to improving reliability of windmill providing enlargement of range of taken up wind loads.

EFFECT: enlarged range of operation, supply of energy to different consumers, especially in mountain areas.

3 cl, 2 dwg