Wind

A control system for obtaining maximum power output from electrical generating water pumping, flywheel storage and like systems comprising a wind-driven prime mover coupled to an electrical generator over an extended range of wind velocities is described. The maximum electrical output power is obtained...     

A device which lifts itself into the air and either itself carries a windmill for the extractions of power from the wind, or traverses a oscillatory path back and forth across the wind such that the action of the tethering lines for the device can be used to generate useful power such as electricity...     

A wind energy conversion device for converting directional wind force to torque along on a vertical rotational axis. The device includes a plurality of flexible vanes mounted to a framework for rotation therewith about a vertical axis. The vanes are mounted to upright posts on the framework. Axial vane...     

An electrically operated vehicle provides a series of rotary members specially mounted to be partially exposed to external direct fluid currents and deflected fluid currents from a deflecting member. Each rotary member provides a series of substantially flat radial vanes circumferentially spaced in quadrature...     

A wind-driven power generating apparatus which includes a main support for securement to a fixed structure. A main drive shaft is retained by this main support and is connected at one of its outer ends to a support block having a plurality of angularly spaced, radially extending, support shafts, each...     

A turbine type power generator includes a rotor having a vertical shaft to drive a load which may be an electric generator or mechanical gear train or other device for using or transmitting power. Generally vertically extending blades are secured at their ends to the rotor shaft and are set at an angle...     

A windmill having a shroud rotatably mounted with respect to a horizontally rotatable vane assembly of the windmill and a directional vane mounted to the shroud to automatically position the shroud to expose half of the windmill vane assembly to the wind. The directional vane is adjustably mounted to...     

An electric battery powered automobile has a wind driven rotor device driving a generator to furnish supplementary power to batteries of the electrical power system of the automobile. The rotor device includes a power rotor having a pair of curved blades forming an overlapping, S configuration, and an...     

A turbine for generating electric power when exposed to a fluid source, such as a liquid or gaseous current. The turbine has two substantially annular rotor housings spaced in parallel, horizontal planes. Each housing is provided with a plurality of radially extending blades which are connected to coaxial...     

A sail-type wind-driven prime mover is provided in which the area of the sails facing into the wind is adjustable. The prime mover comprises a drive shaft from which depend radially extending front and rear masts which support flexible sails. The area of the sails facing into the wind can be varied by...     

A multi-level support structure contains plural power driven turntables on each level and each turntable carries a plurality of wind powered electrical generator units which are pivotally secured to the turntable and electrically coupled in a power distribution system through slip ring elements. Each...     

Atmospheric wind is admitted tangentially into a vertically extending structure and directed against the interior curved surface of the structure to produce vortex flow. The structure is open ended and spaced from ground or connected to a ram-air subterranean tunnel. The vortex flow and corresponding...     

A pair of air driven impeller rotors mounted in the front end portion of a vehicle and operatively connected to one or more generators for charging drive motor energizing batteries responsive to forward movement of the vehicle. The impeller rotors are disposed in radially spaced parallel relationship...     

A fluid mill having a tandem set of vanes is mounted within a vehicle and subject to the air stream during forward motion of the vehicle. Rotation of the sets of vanes in response to the force of the air stream drives an electrical generator which supplies charging current to a bank of batteries. Electrical...     

Windmill or solar plant for generating electric energy having a transmission in the form of an epicyclic gear transmission with sun wheel and planet wheels, the sun wheel of which is connected to the generator shaft, and the planet wheels being coupled with a regulator motor having two directions of...     

An improved fluid driven turbine blade system is provided, which is self-governing at relatively high fluid velocities. This is achieved by a combination of two sets of turbine blades, one having a positive efficiency, and the other having a negative efficiency at the fluid velocity at which the self-governing...     

In a venturi-shaped wind tunnel, a wind is generated by a wind generating device in the larger end of wind tunnel. Wind thus generated is caused to speed up by the venturi and drives a rotatable wind responsive device in the smaller end of the wind tunnel. The wind responsive device, in turn, drives...     

A wind driven power apparatus for converting wind to mechanical energy is disclosed which includes a fixed axis turbine supported centrally of a fixed air guide defining a plurality of horizontal air passages disposed circumferentially of the turbine and each being adapted to receive an air stream therein...     

Power is mechanically transmitted from a tethered airship carrying wind turbines to electrical generators on the ground at the anchor point of the tether, by the use of endless power-transmission cables bridging between drive sheaves at the turbine wheels and driven sheaves at the generators. Tether...     

The following specification discloses an improvement in vertical axis wind machines having upstanding blades. The blades are attached to a rotatable ring which support the blades at an angle of forty five degrees to the horizontal plane of the ring. Associated with the wind machine is a wind velocity...     

This invention provides a means to convert wind energy into electrical energy which through electrolysis forms gases to be stored under pressure, giving a form of stored energy for use at some future time by the use of a high torque, low speed vertical axis wind machine connected by direct drive to homopolar...     

A wind operated generator is disclosed herein having a stationary frame or base rotatably supporting at least four sets of pivotal blades intended to be driven by impinging wind currents. Each set of blades operate in unison for opening and closing air passageways between adjacent ones of the blades...     

A high efficiency wind power machine is disclosed which is particularly well suited for large-scale, commercial conversion of wind power into electrical energy. The wind power machine of the present invention employs highly efficient wind-to-electric power conversion modules which may be interconnected...     

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 shutdown are minimized by scheduling the blade angle as a function of the rotor speed and wind velocity...     

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 coupled respectively to internal and external rotors of an electric generator. The device is pivotally mounted...     

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. The mounting arrangement limits movement continuously in one direction and returns the windmill to its original...     

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. The power plant includes adjusting wedges for establishing and maintaining proper alignment between an alternator...     

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 the form of household electrical current. The device comprises a wind turbine driving an air compressor which...     

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 coupling structure. Shroud structure is disposed in an operable exterior proximity with the turbine wheel...     

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 speed of the wind turbine. The generating system is capable of operating at high efficiency over a wide...     

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 module of unique design and construction. These modules are used in multiples to form fences up to five hundred...     

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 medium into a cylinder to raise a piston loaded by a weight. When the weight rises above a predetermined level,...     

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 for detecting the direction of the wind and positioning the blades so that at least one blade on one side...     

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 spaced rotor assemblies are rotatably mounted on the support assembly and are connected to an 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 (28), a stator (39) carrying the other of the armature or field structures, and a supporting structure (22)...     

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 generate electrical power. A bevel gear rotating with the turbine blade drives two pinion gears and associated...     

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 construction. Specifically, it eliminates the need for shafts, gears, and other coupling devices between the...     

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. The wind-powered impeller-mixers are used in the algae growing reactors of a controlled natural purification...     

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 continuous track. The structure includes electrical generators powered by the rotation of the structure's wheels...     

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 in which coils are wound in a serpentine fashion. The rotor is provided with an aluminum rim slotted in...     

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 continuously load the wind machine to the extent necessary for maintaining a constant tip speed/wind speed...     

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 convert power and can be rendered inoperative to avoid destruction by excessive wind flows.

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 the azimuth of the wind.

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 ducts open across the front of the housing to direct flow against a plurality of vertical vanes carried on and...     

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 2:1. A current limiting reactor, preferably including an inductance coil, and an over-running clutch, are...     

A wind driven device capable of generating electrical power or performing other useful work by transforming wind energy into a rotational power source.

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 barrels arranged in a vertical plane and extending symmetrically radially outwardly from the nacelle. The system...     

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 floor and roof, and a centrally located hollow cylindrical space. A revolving body includes a circular...     

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 confining rising warm air, and directing it into a pair of base members, which support rotating spherical...     

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 supporting the shaft, and drive gears mounted on the shaft that are connected to an electricity generator. Each...     

A power generating system for supplying electrical power to an external electrical power demand load including a vertically oriented centerbody adapted to adsorb radiant solar energy; an annular enclosure around the centerbody defining a vertically extending air passage between the centerbody and the...     

A windmill electric heater converts wind energy to heat energy. A windmill drives a rotor of an eddy current heater. Magnetic fields are provided at an air gap between the rotor and a stator of the eddy current heater. Rotation of the rotor with respect to the stator causes eddy currents, and therefore...     

Electric power generator for mounting on a vehicle or the like, consisting of a tubular shroud within which is coaxially mounted a spool, the space between the spool and shroud being a venturi and containing a plurality of spaced pairs of blade rings.

In a pitch control system for a wind turbine, a mechanical control system changes pitch angle of the rotor blades collectively in response to blade pitch moment. The control system is designed to be used with a downwind constant speed two-bladed horizontal axis teetering hub wind turbine. Pitch placement...     

A fluid-driven pump directly converts fluid kinetic energy into displacement of a second fluid against a pressure differential. In one form of the invention, a wind turbine is coupled via a rotary shaft crank to a reciprocating piston in a large-displacement, double-acting compressor cylinder. In a preferred...     

A control circuit and auxiliary power supply and a switching means for connecting the load selectively to the auxiliary power supply and the main power supply. The main power supply may be a public utility power line, and the auxiliary power supply is a windmill, a motor and generator all connected together...     

A wind power electrical generator system having improved efficiency including a wind mill which activates an air compressor to generate a supply of pressurized air. An air motor activated by the supply of pressurized air drives a generator to produce electrical power. A waste air recovery mechanism,...     

A Darrieus-type vertical axis wind turbine is disclosed which includes a vertically extending rotor tube mounted on a support structure with two or three rotor blades of troposkein configuration on the rotor tube for rotating the tube in response to wind energy and thereby drive a generator to produce...     

A windmill installation (10) includes a windmill (12) supported on a tower (18) that includes three legs (20, 22, and 24). The connections of the legs (20, 22, and 24) to their respective bases (36, 37, and 38) are provided by compliance members (30, 32, and 34) that are compliant enough that the natural...     

This invention relates to a new system for generating electrical energy by wind power. The wind generator is suspended in the air like a kite by wind currents and is attached to the earth by a high strength cable to which are attached electric cables and a natural gas pipe. The numerous small wind generators...     

A wind turbine, by use of a tethered airship for support, may be designed for the economical recovery of power at heights of 2,000 feet or more above ground, at which height power density in the wind is typically three times the power density available to a conventionally supported wind turbine. Means...     

The wave powered buoy generator includes a hollow buoy which has inner and uter surfaces. The buoy is preferably spherical in shape. One or more windings are mounted to the buoy parallel to its surfaces with each winding having a pair of ends. A magnetized device which, is preferably a ball, is located...     

To generate power from wind economically, a feathering vane is pivotally mounted perpendicular to a tail vane and shifts the orientation of a sprocket assembly controlled by the tail vane in response to wind velocity. The sprocket assembly changes the orientation of blades which orbit about and rotate...     

An arrangement for harnessing wind energy has a platform pivotably supported on a base for movement in a horizontal plane with a pair of elongated arms diverging from the base and each supporting cogwheels at opposite ends with an endless support arrangement extending along opposite sides of the arms...     

A wind powered device on a support structure is provided with a drive shaft mounted for rotation about its axis on the support structure and is coupled to an electric generator connected to a utility power grid. A rotor is mounted on the support structure and is adapted to drive the shaft, hence the...     

A wind machine turns a shaft to activate a multistage pump having intake and discharge means respectively coupled to intake and discharge fluid lines. Idling means is provided for each stage and constricting means is located in series with each stage between the intake and the discharge lines. Control...     

A wind machine turns a shaft to activate a multistage pump having intake and discharge means respectively coupled to intake and discharge fluid lines. Control means regulates the operative positions of the intake means or discharge means to remove selected stages from effective pumping while at the same...     

A wind machine turns a shaft to activate a multi-stage positive displacement pump having intake and discharge means respectively coupled to intake and discharge fluid lines in a recirculating hydraulic system. Control means regulates the operative positions of the intake means, discharge means or separate...     

A cooling tower for cooling large quantities of effluent water from a production facility by utilizing natural wind forces includes the use of a series of helically directed air inlet passages extending outwardly from the base of the tower to introduce air from any direction in a swirling vortical pattern...     

Normally feathered propeller blades of a wind power generating system unfeather in response to the actuation of a power cylinder that responds to actuating signals. Once operational, the propellers generate power over a large range of wind velocities. A maximum power generation design point signals a...     

Airfoils (32) are secured to the frame (26) of a vertical axis windmill (20) to provide vertical lift to a rotatable vertical shaft (22) and to armatures (54) of electrical generators (50), thereby eliminating friction between each armature (54) and its end bearing (58) as well as between the vertical...     

A control system for a stand-alone electrical generator driven by a prime mover such as a wind turbine in which switches are operable in response to changes in the frequency of the generator output to change the load imposed on the generator by resistor means. The resistor means includes domestic resistive...     

A wind turbine with a single rotor blade drives an alternator whose output is connected to an a-c network to supply same with power when the alternator acts as a generator under the driving force of the wind. The network establishes a synchronous speed for the alternator which corresponds to a rotor...     

A pressure energy storage device for the storage of kinetic energy of rotation in the form of potential energy of a compressed fluid and for converting the potential energy of the compressed fluid into kinetic energy of rotation. The pressure energy storage device includes a storage reservoir, a compressor...     

A dual solar phenomena exploiting system comprises two main elements; one represents direct solar heat into electric power converting media, and the other indirect using air or aquatic currents in an efficient manner. Both can operate separately, independently or conjunctively.

A machine for economical recovery of wind power employs a self-adjusting mass-balanced aerodynamic blade weathervaning freely around a lengthwise pitching axis forward of its aerodynamic center, and an aerodynamic roller in its leading edge, spun at high RPM by a motor. The roller controls aerodynamic...     

Multiple induction type generators are drivingly connected to an impeller. As wind velocity increases, the generators are successively activated until all of the generators are operating at a maximum wind velocity. As the wind velocity decreases, the generators are successively de-activated until all...     

An apparatus is disclosed for taking advantage of the Bernoulli Principle for moving an airfoil, the airfoil being mounted on a collar for rotation about an axle when in a moving fluid medium. The axle is slanted at a backward angle in the fluid medium direction in a manner so as to permit the motion...     

An alternating current electrical power generating system in which a generator (11) is driven by a fluid driven turbine (2), whose speed or torque may vary, which incorporates a differential drive unit (3) coupled to the turbine (2), the generator (11) and means, such as a reaction machine (6), arranged...     

An alternating current electrical power generating system in which the generator is driven by a prime mover, such as a fluid-driven turbine, whose speed may vary, the generator rotor being coupled to the output shaft of a differential drive unit, one input of which is coupled to the prime mover and the...     

An aerogenerator or wind motor comprises a variable pitch propeller rotor. It comprises compensation means (13) which are sensitive to the deceleration of the rotor to automatically exert on each blade (3), in case of deceleration of the rotor, a force which is substantially equal and opposed to the...     

The wind energy conversion system includes a wind machine having a propeller connected to a generator of electric power, the propeller rotating the generator in response to force of an incident wind. The generator converts the power of the wind to electric power for use by an electric load. Circuitry...     

Wind mill blades are mounted on spokes provided on a power shaft via springs, and thereby in an ordinary wind velocity the wind mill blades are adjusted into a prescribed angle, while in a storm they are made parallel to the direction of a wind, thus enabling the wind mill blades, etc., to be prevented...     

A variable speed wind turbine includes a frequency converter which converts variable frequency AC from a turbine driven AC generator to fixed frequency AC for delivery to a power grid. The frequency converter is typically an electronic cycloconverter or rectifier-inverter and is also used to control...     

A windmill apparatus includes: a frame body structure adapted to be positioned on a flat top of a construction; a main shaft vertically installed in the middle of the frame body structure; a first main-shaft sleeve rotatably coupled with a lower part of the main shaft; a belt pulley fixed around a lower...     

A sail-driven wind motor (SDWM) is described, in which a reciprocating load amenable to intermittent, bidirectional drive (such as a water pump or air compressor) is driven by one or two arms, with each arm driven by at least one conventional fore-and-aft rigged sail. Masts for the sails are mounted...     

In order to construct windmills with high capacity the machinery need to be constructed and dimensioned in such a manner that any type of damage to the machinery is avoided. This is best ensured by a hub construction, which according to the invention comprises a hub shaft (17) which to the front is connected...     

A flotation platform supports a mast assembly through which a drive shaft extends having a wind driven turbine on the upper end and a propeller on the lower end situated below the water surface. The propeller is rotated by the wind turbine and causes localized water circulation in the body of water in...     

An improved wind powered generator includes a streamlined housing rotatably connected with a fixed base and a pair of helical rotors rotatably connected with the housing for driving a pair of electric generators when the rotors are rotated by the wind. The housing includes forward and rear nacelles which...     

A wind-driven electric current-producer has a magnetic field producing alternator rotor directly driven by an air turbine blade. The alternator and blade together are mounted on a vertically tiltable control frame which is pivotably mounted on a main frame that swivels with the wind direction in response...     

A system for producing electrical energy including a stack shaped and positioned generally as the letter "J" and having an intake portion, an exhaust portion and a conveying portion therebetween together with a vacuum producing mechanism associated with the exhaust portion for causing air to move through...     

A wind driven electrical generating system consisting of a post with guyed cable supports, a spinner cage mounted on a square wheel on a circular race, sail elements on the spinner cage, a swash plate mounted upon under side of spinner cage and providing an inclined work surface, a rocker arm mounted...     

Water-powered electricity generating apparatus, for use in rivers and other bodies of water having current flow therein, comprises a water wheel and an adjacent platform. The water wheel has a number of blades which are pivotally attached adjacent a first end thereof to vertical rods which extend between...     

A wind power device comprises a rotor, a machine for converting wind energy, a transmission for transmitting a rotary movement of the rotor to the machine, a tower formed so that the rotor, the transmission and the machine are arranged on the tower, a housing accommodating the transmission and the machine,...     

A windmill includes an airframe having an upwind end and a downwind end, a first rotor rotatably connected to the airframe, and a generator supported by the airframe and driven by the rotor. The airframe is supported vertically in an elevated disposition by poles which extend vertically upwardly from...     

A means for extracting rotational energy from the vortex created at aircraft wing tips which consists of a turbine with blades located in the crossflow of the vortex and attached downstream of the wingtip. The turbine 30 has blades 40, 41, 42 and 43 attached to a core 45. When the aircraft is in motion,...     

A revolving power tower comprising a fixed tower and a revolving tower, to make use of wind power as main power source and the heat energy of the sun as supplementary power source, said revolving tower being to induce the wind from all directions to run into the present power tower; when the outer heat-absorbing...     

A vertical windmill employing aerodynamic lift includes stators that form an omnidirectional diffuser and can rotate out of the wind to reduce the destructive tendencies in high winds. A braking mechanism included in the windmill uses rotation of the airfoils to reduce the lift caused by the wind and...     

A variable speed wind turbine is disclosed comprising a turbine rotor that drives an AC induction generator, a power converter that converts the generator output to fixed-frequency AC power, a generator controller, and an inverter controller. The generator controller uses field orientation to regulate...     

A windmill having a stator and a rotor. The rotor has the shape of a long convex blade having sharp edges and being symmetrical with respect to its longitudinal axis. The stator which surrounds and supports the rotor comprises a lower platform which acts as a base, an upper platform parallel to the lower...