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6700218 |
Wing energy catchment device
A wind energy catchment device comprising a central vertical shaft that rotates, the bottom end of which is secured by means of bearings to a rigid support fixed to the ground, the upper and lower...
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6700216 |
Magnetically levitated windmill
Windmill blades are magnetically levitated such that there is no physical contact with the support, avoiding friction. Furthermore, the electromagnetic resistance is varied relative to the rotation...
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6676122 |
Wind energy facility with a closed cooling circuit
The conversion of energy regularly results in losses in the form of heat. This applies both for the conversion of kinetic energy of wind into electrical energy in the generator of a wind energy...
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6674181 |
Wind-driven twin turbine
A wind-driven turbine assembly useful for the generation of electricity. The turbine assembly has a frame which holds two parallel turbines supported by the top and floor of the frame. Each turbine...
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6672522 |
Wind power generating system
Disclosed is a wind power generating system. The system comprises moving bodies connected one with another by connectors and repeatedly circulated on a rail of an endless track; sail devices...
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6670721 |
System, method, rotating machine and computer program product for enhancing electric power produced by renewable facilities
An electric power system provides a coordinated and controlled intercommunication and operation of power engineering equipment and converters, e.g., rotating AC machines, power electronic...
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6664655 |
Multaxel windmill
The multiaxel windmill has multiple blades attached to a rim that rotates on multiple wheels rather than about a single axel. The blades are many and short and positioned far from the axis of...
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6661111 |
Wind power plant provided with cast shadow control
In the planning and erection of wind power installations the visual impairments to be expected of the wind power installation on the environment are playing an increasingly important part in terms...
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6661113 |
Power generator
A power generator includes a base assembly that has a lower portion and an upper portion. The lower portion is for supporting the upper portion of the base assembly. A solar assembly is coupled to...
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6624530 |
Portable wind-powered light
A portable wind powered light that can be attached to a moving object or the like to allow generated wind to illuminate a light source. The light includes a generator disposed interiorly of a...
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6592331 |
Reinforcement ring for the tower of an wind energy facility
The present invention concerns a tower of a wind power installation for carrying a tower head of the wind power installation, comprising a flange for receiving a connection which is suitable for...
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6590300 |
Cyclonic or anti-cyclonic conversion tower
A cyclonic or anti-cyclonic conversion tower which consists of a central vortical duct ( 1 ), and at least one convector made up of two vertical membranes or screens ( 2 ) and ( 3 ), generated by a...
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6580179 |
Ram air turbine with high power density generator and self-contained fluid cooling loop
A ram air turbine system provides liquid cooling of its generator by employing a closed loop liquid cooling line originating from a pump in the gearbox of the system. In the preferred embodiment...
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6566764 |
Variable speed wind turbine having a matrix converter
A variable speed wind turbine is disclosed comprising a turbine rotor that drives a doubly-fed induction generator, a matrix converter which converts variable frequency output into constant...
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6541877 |
Wind power generation system
The object of the present invention is to provide a wind power generation system characterized by simplified field weakening of the magnetic flux of the permanent magnet of a shaft generator and a...
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6538340 |
Wind turbine system
The present invention relates to an improved turbine used to convert wind into mechanical energy, more specifically, a long axis type of vertical-axis turbine allowing large columns of wind to be...
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6537018 |
Rotational power transfer device
A rotational power transfer device includes a rotatable shaft, a plurality of arm structures attached to the shaft and extending radially outward from the shaft, a plurality of pin structures...
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6532700 |
Flange with cut for wind tower
A flange for making a tower for a wind generator made up of a plurality of cylindrical segments, at least one conical transition rings, a plurality of L-shaped flanges having L cuts and a T-shaped...
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6504260 |
Wind turbine with counter rotating rotors
A first capture unit includes a first turbine rotor having a first hub. A second capture unit includes a second turbine rotor having a second hub. The rotors counter-rotate independently. A first...
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6492743 |
Jet assisted hybrid wind turbine system
Hybrid wind turbine apparatus includes a pair of counter rotating rotors having micro thrusters fitted at tip of each blade of the rotors. An upright mast supports bearings underlying and rotatably...
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6489691 |
Wind power generation system
A wind power generation system mainly includes a wind catching mechanism slidably mounted on a guide rail mechanism. The wind catching mechanism includes a wind-catching means that is selectively...
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6479907 |
Plant for generating electric power and a method for operation of such a plant
In a plant for generating electric power through at least two generators separately driven by wind power and feeding an alternating voltage to an alternating voltage line in common, a converter is...
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6476513 |
Electrical generator system
An electrical wind generator system using multiple brushes for converting the kinetic energy of the wind into electrical energy. The electrical generator system includes a support frame assembly...
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6467233 |
Wind tower
A tower for a wind generator made up of a plurality of sections to which are affixed a plurality of transition rings, at least one being conical in shape, a plurality of L-shaped flanges and a...
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6465900 |
Wind-operated generator
An aeolian generator, characterised because it includes a cylindrical vessel ( 1 ), a hollow body ( 2 ) which is housed in the vessel ( 1 ) and which can turn, as a sufficient amount of liquid is...
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6465899 |
Omni-directional vertical-axis wind turbine
An omni-directional, vertical-axis wind turbine which includes a rotor/stator combination which maximizes energy production by increasing wind velocity and pressure plus eliminating back pressure....
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6465901 |
Device for using wind power or generating wind and pitch system for such a device
A device for using power of a moving fluid or generating movement in a fluid such as a wind turbine is provided with radially placed blades and a pitch change system. The pitch change system...
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6459165 |
Drive for a windmill
Transmission for a wind-power plant with blades ( 3 ) distributed around a rotor ( 1 ) and with a generator ( 6 ) mounted by way of an azimuth bearing ( 7 ) on a mast ( 27 ). The transmission is a...
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6452287 |
Windmill and method to use same to generate electricity, pumped air or rotational shaft energy
An improved windmill and a method for generating electricity, pumped air or rotational shaft energy are provided. A vertical mast rotatably mounts one end of a substantially horizontal and upward...
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6448668 |
Vertical-axis wind mill supported by a fluid
A vertical-axis wind turbine installed at the top of a hillock, in a crater, is constituted of a turbine, a buoy and a cylindrical shape foundation carried over two floors, and comprising a basin...
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6441507 |
Rotor pitch control method and apparatus for parking wind turbine
A wind turbine is configurable with at least one blade is pitched to provide relatively high sensitivity to wind direction or sheer so as to perform a rudder function which moves the blades such...
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6420808 |
Gearing for wind generators
A compact drive which has a high transmission ratio for driving generators by wind force and permits simple assembly and maintenance. The gearing is a slip-on gearing having a multi-stage epicyclic...
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6420794 |
Hydropower conversion system
A hydropower conversion system for circulation of water between a delivering reservoir ( 101 or 201 ) and a receiving reservoir ( 102 or 202 ) through hydro-turbines ( 112 or 212 ), pumps (...
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6420796 |
DC local grid for wind farm
A wind farm is described in which two or more windmills are provided with each having a generator to generate electrical power. The energy supplied by the generators is output to a general a.c....
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6417578 |
Power-transducer/conversion system and related methodology
A system and method (several variations) for interconverting moving fluid power and electrical power, involving, in one embodiment, an aerodynamic rotor integrated with an electrical rotor without...
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6400039 |
Wind power plant with a transformer fixed to the tower
The invention concerns a wind power installation comprising a pylon, a foundation for the pylon and an energy transfer unit for transfer of the current generated to the power network. The wind...
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6373145 |
Ram air electrical generator/charging system
An electrical power generator/charging system for an electrical vehicle includes an alternator system to recharge one or more battery packs, while providing electricity to a propulsion motor when...
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6320272 |
Wind turbine with a wind velocity measurement system
A wind turbine includes a laser wind velocity measurement system mounted on a nacelle of the wind turbine for determination of air velocities at the same relative position in front of the wind...
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6320273 |
Large vertical-axis variable-pitch wind turbine
Several improvements are invented upon a known and well tested selfstarting vertical-axis wind turbine, for economically competitive power production by driving large grid-connected AC generators....
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6294844 |
Artificial wind turbine island
The invention relates to an installation comprising windmills (1) which are mounted in a frame (5, 6, 7) said frame is provided with float bodies (15), and it is capable of rotation about a...
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6285090 |
Low-speed directly driven wind turbine
An electrical energy production system includes a wind turbine having blades mounted on a support and which rotationally drive an alternator. The alternator includes at least one module having at...
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6265785 |
Non-volatile over speed control system for wind turbines
A method and apparatus for non-volatile overspeed protection is described. The present invention provides a method and apparatus for non-volatile overspeed detection to provide turbine rotational...
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6249059 |
Wind power device
A wind power device comprises a wind guide and a twisted member in the wind guide. The wind guide is rotatable around a vertical shaft so that a front opening of the wind guide may always face the...
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6249058 |
Wind driven generator having counter-rotating armature and rotor
A wind driven generator with counter-rotating armature and rotor is disclosed. In a first embodiment a rotor having magnets mounted thereon and an armature having windings disposed thereon are both...
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6246126 |
Hooded wind power engine
Wind engine device consisting of a wind power engine (2) and means (3) to increase the wind velocity in the direction of the wind power engine (2) when the wind velocities are low, whereby these...
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6242818 |
Vertical axis wind turbine
A vertical axis wind turbine having a plurality of blades around its periphery and a pivotable door associated with each blade. Each door has a pivot axis that is inclined outwardly toward the...
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6239506 |
Wind energy collection system
A device for collecting energy from wind includes an airfoil formed from a tubular member with a circular cross-section and a substantially planar leading edge. As an airflow passes over the...
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6215199 |
Wind-driven electrical energy generating device
A wind-driven electrical energy generating device includes a tower (1) with the double, concentrically arranged walls, installed on a rigid turntable (14) with means for provide its rotation in...
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6177735 |
Integrated rotor-generator
A system and method for interconverting moving fluid power and electrical power involves an aerodynamic rotor integrated with an electric rotor without an interconnecting rotating shaft.
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6157088 |
Wind energy system
The invention relates to the utilisation of a decommissioned power station or industrial chimney (1) made of concrete as a tower for a wind converter (2) with a high electrical output with a rotor...
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