The wind turbine includes a rotor 6 and a stator 1 mounted coaxially therewith and provided with lower 2 and upper 3 bases interconnected by vertical guide vanes 4 of the stator, oriented outward. A confuser 22 with blades 23 is mounted on the lower base 2, and a diffuser 9 is mounted above the stator 1. A lower disc 10 of the diffuser is rigidly attached to an upper part 11 of the diffuser that serves as the upper base 3 of the stator. Lower 19 and upper 16 half-axles of rotation of the rotor are installed in upper 21 and lower 17 supports, respectively. A rotor body 7 is made in the form of a hollow truncated cone tapering upward having a curvilinear surface. Rotor blades 8 have a curvilinear surface, preferably of hyperbolic shape, and are installed on an outer surface of the rotor body 7. Upper 13 and lower 14 impellers with curvilinear blades 15 and 20 are mounted inside the rotor body. A rotor fan 25 is additionally installed inside a cavity 24 of the lower disc 10 of the diffuser 9. The blades of the fan are wrapped around the upper part of the outer surface of the rotor body 7. Spacing of the blades of the upper impeller 13 is chosen to be greater than a blade spacing of the fan 25.

The windmill converts the kinetic energy of a flowing fluid into rotational energy that can be used to power a mechanical load. The turbine incorporates a plurality of plate structures, a plurality of sail/wing structures, and a drive shaft. The plurality of plate structures attach to the plurality of sail/wing structures such that the passage of the flowing fluid through the plurality of sail/wing structures rotates the combined structure. The combined structure formed by the plurality of plate structures and the plurality of sail/wing structures rotates around an axis of rotation. The drive shaft attaches to the combined structure formed by the plurality of plate structures and the plurality of sail/wing structures such that the rotation of the combined structure rotates the drive shaft.

A coupling system for coupling a curved object to a central shaft, the curved object includes an inner surface facing the central shaft and an outer surface. The system includes a coupling member for coupling the curved object to the central shaft; at least one pocket integrally formed on a curved surface of the curved object and defined as a depression with respect to at least one of the inner and outer surfaces. The pocket includes: a flat portion having an aperture for holding the coupling member; and a flange portion which merges continuously from the flat portion to the curved object and is shaped such that the flat portion is disposed perpendicularly to the coupling member; a fastening member for fastening the coupling member to the flat portion. The thickness of the flat portion and flange portion is the thickness of the curved object.

Proposed is a wind turbine having a vertical axis rotor mounted in a fixed cylindrical housing provided with outwardly opening shutters. The rotor consists of a rotating core comprising core blades fastened between two circular bases and forming a Ugrinsky rotor, and an annular impeller configured for independent rotation about said core. The impeller comprises impeller blades fastened between two ring-shaped bases and forming a continuation of the core blades, wherein common inter-blade channels are formed which narrow toward the centre of the rotor. Also proposed are wind power stations based on the wind turbines described above, said turbines being mounted vertically one above the other to form a generating tower, or being mounted on a facade of a high-rise building. Technical result consists, in particular, in increasing the efficiency of the wind turbine and making it possible to incorporate wind power stations into an urban environment.

Invention relates to renewable Wind energy combining drag and lift forces into usable torque, having adjustable blades panels with sub blades. Its unique feature is to convert reverse drag into usable lift and combine the two forces in to one cohesive force. The system comprises output drive rotor arranged on a tower base, with its rotating arms with blade panel assemblies mounted rotatably. Each blade panel assembly comprises an auxiliary rotary shaft having sub-blade panels pivotable at one or more pivot points with primary or secondary control arrangements for blocking and/or allowing wind to pass through the blade panels partially or fully. The system further includes sensors to collect control information, coupled to Main Control Unit (MCU) and secondary control arrangements, configured to provide one or more energy forms.

In a vertical rotor apparatus that rotates in response to a moving fluid, a shaft defines an axis of rotor rotation. Rotor blades are longitudinally aligned in parallel with the shaft and each rotor blade defines an axis of blade rotation. A sensor generates a signal when any of the rotor blades are within rotor azimuthal angles of blade stall regions. A controller generates blade pitch information for the blade stall regions and an actuator, which is mechanically coupled to each of the rotor blades, alters blade pitch about the axis of blade rotation in accordance with the blade pitch information.

A vertical shaft wind turbine that is superior in a rotational startability, even at a low wind speed, and is suited to a wind power generator that has high rotational torque. Each blade is an upper-and-lower-ends fixed type vertically long blade which is suitable for use as a wind turbine or a water turbine. The string length and thickness of an upper-and-lower-ends fixed type vertically long blade (8) that is fixed upper and lower ends to a vertical main shaft (7) gradually decrease from a main part (8) thereof to tips of the upper and lower inwardly curved inclined parts (8B, 8B), and a cross section of the main part (8A) is a lift type. A thickness of the cross-sectional shape is continuously and gradually thins from the main part (8) to the tips of the inwardly curved inclined parts (8B, 8B).

A vertical shaft wind turbine that is superior in a rotational startability, even at a low wind speed, and is suited to a wind power generator that has high rotational torque. Each blade is an upper-and-lower-ends fixed type vertically long blade which is suitable for use as a wind turbine or a water turbine. The string length and thickness of an upper-and-lower-ends fixed type vertically long blade (8) that is fixed upper and lower ends to a vertical main shaft (7) gradually decrease from a main part (8) thereof to tips of the upper and lower inwardly curved inclined parts (8B, 8B), and a cross section of the main part (8A) is a lift type. A thickness of the cross-sectional shape is continuously and gradually thins from the main part (8) to the tips of the inwardly curved inclined parts (8B, 8B).

In a vertical rotor apparatus that rotates in response to a moving fluid, a shaft defines an axis of rotor rotation. Rotor blades are longitudinally aligned in parallel with the shaft and each rotor blade defines an axis of blade rotation. A sensor generates a signal when any of the rotor blades are within rotor azimuthal angles of blade stall regions. A controller generates blade pitch information for the blade stall regions and an actuator, which is mechanically coupled to each of the rotor blades, alters blade pitch about the axis of blade rotation in accordance with the blade pitch information.

In a vertical rotor apparatus that rotates in response to a moving fluid, a shaft defines an axis of rotor rotation. Rotor blades are longitudinally aligned in parallel with the shaft and each rotor blade defines an axis of blade rotation. A sensor generates a signal when any of the rotor blades are within rotor azimuthal angles of blade stall regions. A controller generates blade pitch information for the blade stall regions and an actuator, which is mechanically coupled to each of the rotor blades, alters blade pitch about the axis of blade rotation in accordance with the blade pitch information.