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7618237 |
Wind driven power system
A wind driven power system employing multiple arms adapted to rotate about a central structure, each arm having a series of panels pivotally connected thereto and adapted to open and close as the...
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7491031 |
Balancing device of a turbomachine engine
A device for balancing a turbomachine rotor includes at least one counterweight fitted to the rotor, wherein the counterweight includes two radial bearing surfaces oriented in two opposite radial...
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7377749 |
Device for balancing a rotating part, in particular a turbojet rotor
A device for balancing a rotating part, in particular a turbine rotor in a turbomachine such as a turbojet or the like, the device comprising at least one balance weight comprising engagement means...
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7207777 |
Methods of handling wind turbine blades and mounting said blades on a wind turbine, system and gripping unit for handling a wind turbine blade
The invention relates to methods of handling wind turbine blades and mounting said blades on a wind turbine, said method comprising the steps of lifting a wind turbine hub to the nacelle of wind...
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7042113 |
Hydroelectric generator
A hydroelectric generator having a fixed axle, at least one transmission axle parallel to the fixed axle, and a transmission system configured to rotate the transmission axle about the fixed axle...
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6952058 |
Wind energy conversion system
A wind energy conversion system includes upper and lower wind turbines having counter-rotating blade assemblies supported for rotation about a vertical rotation axis, with each blade assembly...
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6926491 |
Vertical axis wind turbine with controlled gybing
A device for generating electricity in which wind blowing from any direction causes the rotation of sails around a vertical tower. As the sails rotate the sails moving toward the wind are...
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6910873 |
Self regulating rotor
A machine that is a self regulating rotor with a set of cups or vanes that are pivotally attached about a central axis such that they form a closed three dimensional shape when closed, and when...
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6872045 |
Apparatus and method for fluid drive conversion
A fluid drive conversion system having a plurality of flat foils rotatably connected to a vertical shaft such that the foils are generally vertical in position, pivot about a vertical axis, are a...
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6840738 |
Feathering turbine apparatus
A feathering fluid-driven turbine comprises impellers, arranged around the turbine axis and affixed to axles disposed parallel to the axis of rotation of the turbine, and further comprises a vane,...
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6666650 |
Wind power facility with a verticle rotor
The invention relates to a wind power facility with a vertical rotor for generating energy, wherein a three-blade rotor ( 5 ) operates according to the cross-flow principle. The outer admission...
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6499939 |
Water wheel
The present invention 10 discloses a wheel-like member 30 consisting of a central circular body member 18 having a plurality of spokes 22 radiating from its outside perimeter that attach to...
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6394745 |
Straight-bladed vertical axis wind turbine
The present invention concerns a wind turbine device having two or more vertical blades as generally used to generate power that gives a self-regulating angular speed using a collective blade-pitch...
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6379115 |
Windmill and windmill control method
A windmill includes a freely rotatable revolution shaft, a plurality of pairs of pivotal support rods provided at the revolution shaft, and wind receiving blades respectively and rotatably set...
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6213721 |
Noise emission reduction
A structure for eliminating or reducing noise emission from a structure which vibrates at two or more discrete frequencies is described. Vibration damping tiles are secured to the surface of the...
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6179563 |
Wind-powered drive shaft
A wind-powered drive shaft, the rotary force of which can be used for a variety of purposes, such as to drive a hydraulic pump, the crankshaft for a water pump, or an electrical generator. To a...
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6158953 |
Wind turbine with variable position blades
A wind turbine has an internal rotor carrying a plurality of turbine vanes in a circular path between an inlet opening and an exhaust opening. The inlet opening includes a stationary dividing vane...
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6113350 |
Vertical-axle power machine
A vertical-axle wind power machine comprises a vertical axle, a plurality of jointed radial arms, a plurality of counterbalanced oblique blades at the support points thereof, a friction-rewarding...
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5855470 |
Wind wheel with rotationally faced plates
This invention accomplishes these and other objectives with a wind wheel (1) having at least one planetary gear wheel (10) affixed rigidly to a wind-wheel axle (2) from which gear trains for each...
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5808369 |
Windtrap for power development
A wind power generator comprises a shaft operatively mounted in a support frame for rotation about a substantially vertical axis. A wing arm is fixedly mounted on the shaft and extends radially...
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5676524 |
Vertical-axis wind turbine
A turbine has an upright shaft defining and rotatable about a vertical main axis, a support plate fixed to the shaft, a plurality of upright vanes pivotal on the support plate about respective vane...
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5642983 |
Sail system for wind turbines
A sail system for wind turbines of the vertical shaft type is disclosed. The sail system has a vertical rotating shaft, a plurality of support arms radially extending from an upper portion of the...
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5520505 |
Wind amplified rotor platform (warp)
An energy conversion device which comprises a stacked array of alternating yawable and fixed toroidal modules about a central core structure. The yawable toroids have typically four impact...
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5518367 |
Cross-wind-axis wind turbine
A mechanical device which converts the wind energy into rotational mechanical energy has a cross-wind-axis rotor structure, having multiple, orientable blades around its periphery, mounted parallel...
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5471098 |
Device for connecting flow energy of water into electrical energy
A device is located in a body of flowing water and includes a bridge supporting an electrical generator and anchors for holding the bridge stationary with respect to water flowing past that bridge....
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5332925 |
Vertical windmill with omnidirectional diffusion
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...
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5302084 |
Windmill with annular flywheel
An improved windmill has an approximately vertical center support post. The windmill also has a plurality of wheels, each rotatably mounted on a separate horizontal axis, each axis being radially...
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5299913 |
Wind power plant
A wind power plant for harnessing wind power includes a tower; a plurality of upright rotor blades spaced apart circumferentially and spaced radially from a rotational axis; and a supporting...
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5266006 |
Windmill with removable wind vane plates arranged in multi-rows-and-lines
A windmill with removable wind vane plates arranged in multiple rows and columns, comprising a base fixed firmly on the ground, a tubular post fitted upright in the base, a rotatable frame...
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5256034 |
Variable pitch propeller for use in conjunction with a vertical axis wind turbine
A variable pitch propeller mechanism includes a plurality of airfoil-shaped blades on three spaced apart blade arms. The airfoil-shaped blades are pivotally connected to the blade arms and are...
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5221186 |
Wind turbine apparatus with fluidic rotation indicator
A wind turbine is arranged to provide for a front torroidal plate mounted from and spaced relative to a rear solid plate coaxially securing a deflecting cone coextensively and coaxially between the...
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5193978 |
Articulated blade with automatic pitch and camber control
An articulated blade whose forward vane section is directly pitched by relative fluid flow upon it, and whose rear deflector section deflects the flow upon it. A control arm, through parallelogram...
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5171127 |
Vertical axis sail bladed wind turbine
A vertical axis turbine is provided which comprises a plurality of flexible sail blades attached to a vertically extending, rotatable shaft by upper and lower blade attachment devices, and a power...
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5131805 |
Dual axis fluid current motor
Apparatus and method for harnessing fluid energy from a fluid current and converting it into mechanical energy. The invention comprises a big wheel and a little wheel where the little wheel rotates...
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5098264 |
Yin-Yang fluid power machine
An apparatus harnessing energy belonging to fluid stream comprises a plurality of elongated fluid dynamic force receiving members with cambered cross sections disposed parallel to and about a shaft...
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5083901 |
Electricity generating wind turbine
A drum is mounted for rotation about an axis. Its surface is substantially cylindrical about the axis, and axially mounted outside of the surface is a plurality of vanes each defining a slot with...
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5076759 |
Windmill
A drum-shaped windmill with a cylinder tube 1 mounted coaxially to the rotation axis of the windmill with one of each of the circular end plates 2,3 on both ends of the cylinder tube 1 is...
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4979871 |
Wind turbine
An improved vertical axis wind turbine is disclosed. The wind turbine in accordance with one embodiment, does not include a support tower but instead includes a bearing support for mounting a...
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4971521 |
Airfoil blade for impeller fan and manufacturing method thereof
An airfoil blade for a fan impeller, includes one blade surface portion formed by extrusion molding. A plurality of ribs are integrally formed with the one blade surface portion to extend upwardlyf...
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4970404 |
Method and means of generating electricity by a wind blown turbine
A method of generating electricity by a wind blown turbine comprising mounting a generator aramture rigidly on a shaft; rotatably mounting a housing, a field coil and a wind turbine with respect to...
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4886421 |
Wind turbine air foil
A vertical axis wind turbine blade comprising a blade body with a leading edge and trailing edge there between being generally parallel to each other with a series of a given intersecting...
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4857753 |
Wind energy convertor
In a vertical axis wind generator incorporating a circular turbine supported by an uppermost part of an upstanding support, a stator surrounding and coaxial with the turbine comprises an upper...
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4832569 |
Governed vane wind turbine
Wind energy converting machine comprising a solid rotating ring carrying airfoils which are governed to have an optimal angle of attack to the wind approaching each of them when the wind velocity...
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4818888 |
Water-powered electricity generating apparatus
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...
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4808074 |
Vertical axis wind turbines
The invention relates to improvements in and relating to vertical axis wind turbines, particularly those of the "eggbeater" type. It has been found possible, in spite of previous beliefs that it...
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4799860 |
Wind-energy converter
A wind energy converter with a rotor having a vertical swivelling axis has n each rotor arm a vertical vane that is supported so as to be able to pivot about an approximately vertical pivotting...
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4792700 |
Wind driven electrical generating system
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...
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4776762 |
Windmill
A power conversion turbine for actuation by fluid in motion such as, for example the wind, with a body supported to rotate about a central axis and carrying a plurality of vanes spaced from said...
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4764090 |
Vertical wind turbine
A cross wind axis type wind turbine includes four wind driven airfoil blades pivotally connected between upper and lower sets of support spokes supported on a rotating vertical column so that the...
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4730119 |
Sail-driven wind motor
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...
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