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4382191 |
Wind powered electricity generation system
A wind powered electricity generation system having at least one wind vane assembly, an elongated shaft attached substantially perpendicularly to the bottom of the wind vane assembly, a tower...
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4379972 |
Turbine ventilator
This turbine ventilator is a combination device for ventilating a building structure, while it simultaneously generates useful current, and it consists primarily of a rooftop mounted housing, for...
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4379236 |
Windmill generator apparatus
A duct possessing structure includes an annular first floor and an annular first roof disposed substantially horizontally, vertical stationary guiding partitions provided radially between the first...
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4366387 |
Wind-driven generator apparatus and method of making blade supports _therefor
Wind generator apparatus employs an induction generator with a wind-driven rotor. Connection of the induction generator to AC power lines is controlled by apparatus that compares generator rpm and...
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4366386 |
Magnus air turbine system
A Magnus effect windmill for generating electrical power is disclosed. A large nacelle-hub mounted pivotally (in Azimuth) atop a support tower carries, in the example disclosed, three elongated...
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4365166 |
Wind engine with radial flow wheel, partially protected, with fixed blades of large diameter
A flowing air or wind responsive engine having a shaft supported by a carrying construction with a radial flow wheel with blades of large diameter fixed to the shaft, the shaft being maintained in...
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4358687 |
Wind powered generator
A wind driven device capable of generating electrical power or performing other useful work by transforming wind energy into a rotational power source.
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4357542 |
Wind turbine generator system
Wind turbine generator systems incorporating a multi-speed pole amplitude modulated type dynamo electric machine allowing efficient operation at consecutive speeds in a ratio preferably less than...
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4350900 |
Wind energy machine
A rotary machine to be driven by a flow stream, such as wind or a water stream, including a housing with a semi-cylindrical back wall and horizontal top and bottom walls. A plurality of intake...
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4350898 |
Lighter than air wind energy conversion system utilizing an external radial disk diffuser
A lighter-than-air (LTA) wind energy conversion system (WECS) wherein the LTA envelope carries a main rotor and electrical generator to take advantage of high wind speeds available at high...
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4345161 |
Multi-wheel windmill electro-generator
Fore and aft wind wheels have oppositely inclined vanes to rotate in opposite angular directions. Each wheel drives an electric generator. The whole is mounted on a shaft to be set, by a rudder, to...
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4340822 |
Wind power generating system
A wind power generating system is provided to generate power for the farm or ranch, state or county service buildings, and light industrial uses. The concept utilizes wind energy efficiently to...
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4339666 |
Blade pitch angle control for a wind turbine generator
A blade pitch angle control for a wind turbine-generator establishing an optimum power or torque reference signal which, when operating conditions so warrant, is not limited by the nominal torque...
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4333018 |
Wind energy conversion system with reaction torque for power control
A wind energy conversion system for converting wind energy into controlled wind turbine torque comprising a wind turbine with an essentially horizontally disposed shaft, a means, rotatably mounted...
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4331881 |
Field control for wind-driven generators
The field current of a wind-driven generator is automatically controlled in response to a first signal representing the wind speed and a second signal representing the impeller tip speed so as to...
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4329593 |
Wind energy machine utilizing cup impellers
Cup-type impellers are utilized on wind energy machines which are driven according to a first embodiment to rotate about a vertical axis and according to a second embodiment to rotate about a...
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4320304 |
Apparatus for increasing the flow speed of a medium and for recovering its kinetic energy
Apparatus for increasing the flow speed of a medium such as air and for recovering its kinetic energy, comprising a series of concentrical, substantially symmetrically arranged annular members...
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4318019 |
Alternator for wind generator
An alternator for wind generator use employing a pair of stators having a rotor mounted therebetween in planar coaxial relationship. The stators have radially slotted coil forms integral therewith...
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4303835 |
Wind powered generator with cyclic airfoil latching
A wind powered generator rotatable about a vertical axis. A plurality of vertically disposed airfoils are provided, the airfoils being rotatable about a vertical axis parallel to the axis of the...
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4302684 |
Free wing turbine
Apparatus to convert wind energy into mechanical and electrical energy including a variable pitch air-foil supported by tension guy wires on a wheeled structure constrained to move upon a...
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4292540 |
Wind-powered impeller-mixer
The invention is an energy-saving means for providing turbulence as well as circulation to liquids in a controlled natural purification system for advanced waste water treatment and algae farming....
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4291235 |
Windmill
This invention relates generally to an improved windmill design that combines the blade and rotor support system with the electrical generating system in such a way as to simplify the windmill...
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4291233 |
Wind turbine-generator
A wind-turbine generator system which transforms the rotational energy of a wind driven turbine blade into rotation in opposite directions of a rotor and a stator of a dynamoelectric machine to...
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4289970 |
Wind powered electrical generator
A wind powered electrical generator having a rotatable wind wheel (21) carrying one of the armature (42) or field structures and a plurality of windvanes (45) connecting the rim to a central shaft...
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4288704 |
Wind driven generator with blade protecting means
A wind driven generator comprising a shaft having one end rotatably mounted in the apex of a conical wind deflector, a wind wheel keyed on the shaft in an open housing behind the deflector. An...
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4280061 |
Method and apparatus for generating electricity from a fixed pitch wind wheel
A method and apparatus for generating electricity from wind energy, wherein a wind wheel is connected to drive an energy converter which effects a torque reaction on the wind wheel proportional to...
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4278896 |
Wind power generator
A wind power generator comprising a vertically disposed support post having a support assembly rotatably mounted thereon which extends horizontally laterally therefrom. A plurality of vertically...
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4278894 |
Wind-driven power generator
A wind-driven power generator comprising a plurality of blades mounted between a pair of spoked wheels on a vertical column, said blades being connected through an eccentric rod system to a vane...
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4275309 |
System for converting solar heat to electrical energy
This invention consists of a system and apparatus for converting solar heat to electrical energy by accumulating normally non-heated air under a transparent roof which covers a vast area of sand,...
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4274010 |
Electric power generation
Electric power is generated from a non-uniformly operating energy source such as wind or water waves by driving hydraulic pump means by a wind wheel or a bobbing float. The pump feeds hydraulic...
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4265086 |
Wind fence
This invention relates to a wind fence, preferably of immense area, adapted to extract energy from the wind and convert it into commercial electricity. The fence of this invention comprises a...
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4251040 |
Wind driven apparatus for power generation
Wind driven apparatus for the production of power at a ground location includes an aerodynamic lift generating vehicle capable of maintaining a stable airborne orientation, a tether linking the...
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4242628 |
Wind energy conversion system
A wind turbine drives the squirrel-cage rotor of a capacitively excited induction generator. The amount of excitation is controlled in accordance with the output voltage of the stator and hence the...
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4239977 |
Surge-accepting accumulator transmission for windmills and the like
An alternator, powered by a wind rotor having pitch changeable blades, is maintained at a fixed speed despite variations in wind speed and cyclic perturbations in rotor shaft speed due to rotor...
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4237384 |
Wind turbine means
A turbine wheel which includes a housing for enclosing the electrical generating apparatus, and track structure which engages and rotatably drives the generator or the like, i.e., through suitable...
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4236083 |
Windmill having thermal and electric power output
A windmill having thermal and electric power output and including windmill blades rotatably mounted and connected to a speed increaser mechanism of gears and shafts and a centrifugal compressor...
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4229661 |
Power plant for camping trailer
A power plant for mobile homes, camping trailers, and the like, capable of capturing low powered aeolian energy, storing said energy in the form of compressed air, and delivering it on demand in...
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4228362 |
Wind electric plant with improved alternator field excitation
An improvement in a wind electric plant of the type disclosed in applicants' U.S. Pat. No. 4,059,771 and applicants' co-pending application Ser. No. 887,373, filed Mar. 16, 1978. The improvement...
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4228363 |
Modular wind electric power plant
A wind electric power plant that has the working components thereof assembled and aligned as a stub tower, then tested at the factory prior to shipment of the assembled stub tower to a use site....
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4224528 |
Solar thermal and wind energy power source
A transparent panel enclosed tower provides a confined space for solar heating air. An upright wind turbine, mounted on the tower top, communicates with the tower enclosed space. As the solar...
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4220870 |
Wind conversion lattice array, with multiple mini-turbo-generator modules
The wind conversion lattice array, with multiple, mini-turbo/generator modules consists of multiple miniature turbine wind generator modules which are uniformly mounted on an open lattice-like...
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4217501 |
Mounting for windmills
A windmill structure including a mounting for supporting one or a large number of windmills in an elevated position above the ground so that the windmills can weathercock and align with the wind....
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4213057 |
Wind energy conversion device
A wind energy conversion device comprised of an elongated generally cylindrical housing provided with oppositely pitched multi-bladed rotors at the fore and aft ends thereof which are directly...
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4206396 |
Charged aerosol generator with uni-electrode source
This invention relates to novel charged aerosol sources for diverse applications in Heat/Electric Power Generation, weather modification, airport fog clearance, dispersed chemical reactions, and...
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4205235 |
Automatic electrical load matching device for wind generators
An automatic electrical load matching device for applying loads to wind den generators. The device switches five different loads to the output of a wind driven generator. Each load corresponds to a...
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4204126 |
Guided flow wind power machine with tubular fans
A guided flow wind power machine having inter-meshing tubular fan blades is disclosed. The device includes a main frame which is rotatively mounted to permit it to continuously face the wind...
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4198572 |
Regulated apparatus for the generation of electrical energy, such as a wind generator
The invention relates to a regulated apparatus for the generation of electrical energy. A wind generator comprises a propeller having fixed blades and a generator connected by a transmission to the...
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4193005 |
Multi-mode control system for wind turbines
A multi-mode electronic wind turbine control system establishes a reference blade angle for a two-bladed, horizontal axis, variable pitch wind turbine rotor, the blade angle being regulated by a...
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4189648 |
Wind turbine generator acceleration control
A power generating system includes a wind turbine driven generator, the wind turbine having a wind turbine driven rotor with a variable pitch angle blade. Stresses on the system during startup and...
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4186312 |
AC Electrical power systems with alternate sources of power
AC electrical power system comprising an electrical alternator and a primary power source which is alternatively and automatically utilizable with an emergency power source when the primary power...
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