The present invention is a wind generator system for small wind applications that harnesses low velocity wind effectively, the wind generator system comprising a rotor, a drive shaft connected to the rotor and to a generator for converting mechanical energy into electrical energy; and a plurality of blades attached to the rotor and extending radially outwardly therefrom; wherein each blade includes a first portion having a distal end for attaching to the rotor and a proximal end attached to a scoop portion with individual scoop sections; and wherein each individual scoop section has an angle of incidence to the wind that operates to increase the lift of the blade while decreasing drag.

A reciprocal motion wind energy harvesting device has a first lever arm assembly and a second lever arm assembly, which are supported by and rotate about a central shaft. The lever arm assemblies have pluralities of vanes along their length to receive wind force. The vanes are configured to be rotatable in order to produce opposing and reciprocating motion of the lever arm assemblies. The lever arm assemblies are operatively connected to a generator in order to convert the wind force received by the vanes into energy.

A kinetic fluid energy to mechanical energy conversion includes rotatable hubs supporting one or more independently controlled articulating energy conversion plates (“ECP”) and systems and components for alternating the independent control of each ECP in response to operating conditions thereby comprising an energy conversion regulation method. Separator plates for controlling fluid flow with respect to each ECP may be employed above and below the hub and may also be directionally altered in response to operating conditions and included within the energy conversion method.

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.

The subject-matter of the invention is an apparatus for converting energy of wind or water, it is driven by natural energy of wind or water, it is a rotating machine with either magnetic control or mechanic one where blades move along an open eccentric path with continuously changing radius in its construction; in the construction one or more sliding blocks (2) are fastened on a driven axle (1) shapes suitable for sliding are formed in the said blocks, their number depends on the number of blade arms (3) of the blades (5), there are secondary sliding blocks (4) and a power transmission system is established, which is realized by the driven axle (1) and the blades (5) led to a leading path (6) eccentric to the axle.

A device for controlling thrust vectoring of a cyclorotor includes a control cam positionable relative to a drive shaft of a cyclorotor along each of a first axis and a second axis, where the drive shaft is rotatable about a third axis. The device may further include a frame having a plurality of sides, where the frame is disposed at least partly around the drive shaft of the cyclorotor, a first positioning assembly disposed on a first side of the frame, where the first positioning assembly is structurally configured to move the frame along the first axis, and a second positioning assembly disposed on a second side of the frame, where the second positioning assembly is engaged with the control cam and structurally configured to move the control cam relative to the frame along the second axis.

A wind power generation device includes a wind blocking structure, which is in a box-shaped structure fixed on ground by a bottom plane thereof; a wind vane rotating body including a rotating shaft and vanes fixed on the rotating shaft and arranged at equal angle intervals, wherein the rotating shaft is mounted on two bearings of the wind blocking structure, and the vanes are rotatable inside the box-shaped structure; a power generator connected to the rotating shaft and fixed on the box-shaped structure by a linking plate. When wind blows to the wind blocking structure to rotate the wind vane rotating body, the power generator is driven by the rotating shaft to generate electrical power. The wind power generation device can include at least two wind vane rotating bodies, or area enlarging structures added on the vanes, to increase windward areas of the vanes.

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.

The present invention relates to a vertical wind turbine (1) with a plurality of vertical blades (7), which are each fastened to a respective vertical blade axis (26), are each such that they are motor-driven pivotable around a respective blade rotation axis (C.sub.7) independently of one another and are supported rotatable on a common circular path (K) around a vertical rotor rotation axis (C.sub.2), and to a method for operating the vertical wind turbine (1), wherein angular positions of vertical blades (7) of the vertical wind turbine (1), which are each driven around a respective vertical rotor blade axis (26), are predetermined. According to the invention, the vertical wind turbine (1) is operated in a particularly efficient and material-protecting way in that the angular positions of the blades (7) are continuously controlled through a direct drive of each of the blades (7) by means of a respective pitch motor (27) positioned concentrically to the blade axis (26).

A vertical axis wind turbine includes: a central axis that extends in a substantially vertical direction; a plurality of configurable airfoils disposed about the central axis, the plurality of configurable airfoils physically coupled to rotate together about the central axis; an angle adjustment mechanism configured to adjust an angle formed between a configurable airfoil and a radius that extends from the central axis as the configurable airfoil rotates about the central axis; and a profile adjustment mechanism that is configured to adjust a profile of the configurable airfoil as the configurable airfoil rotates about the central axis.