According to a feature, the present invention comprises: a housing having a power generator provided therein; a rotating body coupled to the housing so as to rotate; rotary support bars coupled to the outer peripheral surface of the rotating body so as to rotate integrally with the rotating body around the housing; resistance plates formed in a plate shape, generating resistance by means of gas or fluid, and having fixing grooves formed to be recessed inwards from one side surface thereof such that the rotary support bars are rotatably inserted therein; and an angle restricting part for rotatably coupling the resistance plates to the rotary support bars such that the range of a rotational angle of the resistance plates is restricted, the resistance plates are in a vertical state so as to generate resistance in a forward direction in which the gas or fluid moves and the resistance plates are in a horizontal state so as to prevent the resistance from being generated in a reverse direction, wherein the rotating body rotates by the resistance power generated by the resistance plates and the power generator generates energy by means of the rotating power of the rotating body which rotates. The present invention as described above can provide the structure of the resistance plates of an energy generation apparatus, the structure in which the rotating body rotates by the resistance power generated by the resistance plates and the power generator can generate energy by means of the rotating power of the rotating body which rotates.

The ‘Air Wheel’ rotor is a rotor with blades of variable pitch and variable twist. The ‘Air Wheel’ rotor comprises one or more hubs connected to the closed axisymmetric wing via flexible blades. There is provided a wide range of combinations of the wing relative width and coning angle typical for a lifting rotor with a thin planar wing attached to the tips of long blades, for a shrouded fan in a wide annular wing, or an impeller in a rotating cylindrical wing is provided.

The ‘Air Wheel’ rotor combines and enhances the advantages of a rotor and a wing. The ‘Air Wheel’ rotor has high aerodynamic properties, and eliminates limitations of the rotor size and flight speed. The ‘Air Wheel’ rotor can be used for designing vertical take-off and landing aircraft.

A molding tool assembly, in particular for producing rotor blades of wind power plants, having a first mold shell (20) and a second mold shell (22) each for receiving one workpiece part, wherein the two mold shells in a proximal position face one another but do not bear on one another, having securing means for holding a workpiece part in at least one of the mold shells and having centering means for mutually centering the two mold shells in the proximal position or during convergence of the mold shells. The centering means and the securing means are mechanically intercoupled.

A system for generating power from turbine arrays comprises a plurality of turbines positioned in a turbine array. Each turbine comprises a vertical shaft having an upper portion, a middle portion and a lower portion. The lower portion of the shaft is attached to a base member housing at a top portion thereof utilizing a lower shaft bearing. Thus, the shaft is configured to rotate and move linearly in an axial direction. Each turbine further comprises a turbine head having blades mounted at the upper portion of the shaft utilizing an upper shaft bearing and a first pulley coupled with a gear connected to the middle portion of the shaft. The system further comprises a generator having a second pulley that is engaged with the first pulley utilizing a coupling means. When the shaft rotates, the first and second pulleys turn to actuate the generator thereby generating electrical current.

Structural preform layers of multiple rigid unidirectional strength elements or rods are constructed and arranged for use in fabricating load-bearing support structures and reinforcements of wind turbine blades. Individual preform layers include multiple elongate unidirectional strength elements or rods arranged in a single layer along a longitudinal axis of the preform layer. Each preform layer includes one or more fibrous carrier layers to which the multiple strength elements or rods are joined and arranged in the single layer. Each strength element or rod is longitudinally oriented and adjacent to other elements or rods. Individual strength elements or rods include a mass of substantially straight unidirectional structural fibers embedded within a matrix resin such that the elements or rods have a substantially uniform distribution of fibers and high degree of fiber collimation. The relative straightness of the fibers and fiber collimation provide strength elements or rods and the preform layers with high rigidity and significant compression strength.

A synchronous generator, in particular a multiple-pole synchronous ring generator of a gearless wind turbine, for generating electric current, comprising a rotor and a stator is provided. The stator has a large number of slots for receiving a stator winding in the form of conductor bundles, wherein the slots each have a slot base, whose surface is profiled in such a way that, during filling, a first layer on the slot base side of conductor bundles assumes an orientation which is preset by the profile. A stator for such a generator and to a wind turbine comprising such a generator is provided.

The use of a protection thread for the protection of a heat curable resin impregnated fibrous web. The web has weft and warp fibres, wherein the thread has a coefficient of thermal expansion within 10% of that of the heat curable resin impregnated fibres of the fibrous web, and wherein the coefficient of thermal expansion is measured using DIN 53752.

A wind turbine device includes a rotatable seat, and a blade assembly including a rotary shaft having a fulcrum portion rotatably connected to the rotatable seat, and two mounting portions extending oppositely and respectively from two opposite ends of the fulcrum portion. At least two blade units are respectively connected to the mounting portions. Each blade unit includes a plurality of angularly spaced-apart blade modules each including a grid frame and a plurality of blades connected to the grid frame. The grid frame includes at least two airfoil-shaped first rods extending along an axial direction of the rotary shaft and spaced apart from each other along a radial direction of the rotary shaft.

A mechanical device system that draws power from the wind by means of near-vertical blades pivotally mounted on a platform rotor that is flush with the ground and rotatable about a vertical axis. Wind forces are generated on the blades causing the platform rotor to turn thereby generating shaft power. An electrical generator coupled to the platform rotor converts the shaft power to electrical power, which is then distributed through conventional transmission means. The power output is maximized for a given wind speed by cyclically controlling each blade rotation to intercept the relative wind vector so as to create maximum blade forces over the periodic cycle. The blade axes are canted to match the rotational speed to the normal speed gradient of the prevailing wind to maintain constant (π*h*D)/Vw at all levels. The turbine is mounted atop an earth mound tailored to accelerate the flow near the ground to produce an optimum wind speed profile. The rotor speed is controlled to match the wind speed within narrow limits for maximum efficiency and power output.

A system for generating electric energy from wind or hydraulic energy includes a turbine, and an electric energy generating device to which the turbine is connected through a shaft along a first axis. The turbine includes at least one blade, configured to perform a first rotary movement with respect to the first axis, and a second rotary movement with respect to a second axis, coinciding with the axis of the blade itself. This provides a system with structural features allowing high efficiency, facilitating installation in various environmental contexts, without risk of damage for the respective operational and structural integrity, at the same time. Additionally, the system has an essentially reduced environmental impact, as well as a low noise level so that it can be installed in an urban context or in any case close to built-up areas, i.e. near houses or buildings.