CYCLOIDAL WIND TURBINE WITH FOLDING BLADES Russian patent published in 2016 - IPC F03D3/00 F03D7/04 

FIELD: energy.

SUBSTANCE: invention relates to renewable power engineering, particularly to wind turbines with folding blades. Cycloidal wind turbine with folding blades comprises hollow vertical shaft with installed inside central braked axis articulated with planetary gear with its housing connected to axes of blades by means of horizontal brackets arranged around it and satellite shafts located in them, anti-storm flag assembly and vane device for blades self-orientating on wind with reversing drive. Hollow vertical shaft is made in form of two coaxial sections connected from above and from below with planetary gear housing. Each horizontal bracket can turn and kinematically connected to inner side by means of intermediate angles and paired loops with planetary gear housing, and on outer side is with blade casing, at that, with help of retaining rotary angular frame it further in turn connected with upper or lower movable bushings fitted on hollow vertical shaft. Length-adjustable pantograph bars are additionally connected with planetary gear housing, retained on horizontal brackets along their axes by means of guide brackets with eye rings and from outer side connected with blades casings by means of elastic rods. Guide rollers contacting with planes of blades are arranged on opposite sides on horizontal brackets. Vane with group of blades wind self-orientation assembly contact switches is arranged on central braked axis directly above anti-storm flag. Wind turbine also includes two independent identical reversible drives of upper and lower carriages, arranged inside sections of hollow vertical shaft or in case of planetary gear and carrying out spontaneous folding of blades during tempest or storm. Using additional remote control panel ensures possibility of its forced stop with blade folding in any operating range of wind speeds, independent operation of only upper or lower blades, as well as emergency stop without blades folding by arranging carriages in middle positions after rupture of kinematic links axes of blades with satellite rollers and subsequent turn planes of all blades along air flow.

EFFECT: technical result consists in improvement of reliability of wind-powered engine during tempest or storm by folding of blades with their further return to initial position.

9 cl, 10 dwg