Abstract: A VAWT wind engine includes a support structure, an articulating rotor mounted on the support structure for rotation about a vertically extending axis, and at least one airfoil on the rotor for rotor-powering purposes. The articulating rotor is mounted in a manner enabling tilting movement of the rotor during rotation so that the airfoil produces rotor rotation and rotor tilt as the airfoil orbits the rotational axis. At least one mechanical linkage is included to actively vary airfoil pitch according to rotor tilt. The partially articulating rotor of a teetering-rotor embodiment seesaws up and down about a horizontally extending pivotal axis. The fully articulating rotor of another embodiment supports three airfoils as it tilts in any direction by virtue of a gimbal or other rotor hub assembly providing a 360-degree swiveling action, while furling hinges help protect the airfoils against damaging winds during wind engine shutdown.

Abstract: Various fluid turbine systems and methods are described. The turbine can be a vertical axis wind turbine configured to generate power from wind energy. The turbine system can have a blade assembly. The blade assembly can have a plurality of blades rotatable about an axis. The turbine system can have a concentrator positionable upwind and in front of a return side of the blade assembly. The concentrator can define a convex surface facing the wind. The turbine system can also have a variable concentrator positionable upwind of a push side of the blade assembly. The variable concentrator can be adjustable between a first position and a second position, the variable concentrator being capable of deflecting more wind toward the turbine in the first position than in the second position.

Abstract: A stabilizing apparatus is provided, applicable to all kinds of vertical axis wind turbine (VAWT), including a plurality of ball units and at least a guiding unit. The guiding unit has a circular cross-section and forms a ring-shaped housing space inside for housing the ball units. The inner wall of the bottom of the ring-shaped housing space inside the guiding unit forms a ring-shaped guiding surface. The ring-shaped guiding surface extends from the center of the apparatus towards the brink of the circumference of the apparatus. The straight line connecting the edge of the inner circle and the edge of the outer circle of the ring-shaped guiding surface forms an angle of 0-45° to the horizon surface.

Abstract: A wind compressor system having one or more wind turbines and a plurality of wind compressors located proximate the one or more wind turbines. The wind compressors optimize the energy created by the wind turbines by redirecting and converging the wind from the wind compressor to the wind turbines. Each of the wind compressors comprises an obstruction having a size and shape adapted to converge the wind currents by means of a venturi effect toward the one or more turbines thereby increasing the velocity and force of the wind hitting the wind turbine. A plurality of transporters coupled to the wind compressors. The transporters configured to move at least one wind compressors to a location that maximizes the force of the wind encountered by the turbine.

Abstract: A fluid flow-driven energy conversion system configured to oscillate in the presence of fluid flow. The system comprises an adjustable electromechanically controlled fluidfoil, a balance beam, a compensatory weight and an angle of attack positioner to adjust the angle of attack of the fluidfoil with respect to fluid flow. The fluidfoil is controlled to permit a consistently optimum angle of attack into the prevailing flow. The kinetic energy of the oscillating action is transferred to a connector for energy transfer to one of a variety of energy storage systems for converting the energy of the linear oscillating motion to other desired forms of energy.

Abstract: A cantilevered power generation system and the support therefor comprising a clamping frame with first and second jaws that are relatively moveable and which permits the system to be mounted to a support located on or adjacent a shore line or water way so that power generation apparatus supported within the system can be positioned in the moving flow of water to generate power. The first and second jaws of the clamping frame support allows the power generation apparatus to be mounted adjacent a moving waterway and removed, as well as movable from one location to another and also allows the power generation apparatus to be raised thus permitting the repair and/or replacement of parts.

Abstract: An improved power unit placed in a fluid stream, comprises a common stationary hollow axle, two coaxially mounted orthogonal turbines, having hollow shafts oppositely rotatable around the axle, inner and outer rings, adjustable blades attached to the rings, an electro-generator located between the turbines including two annular rotors formed on the inner rings with flat electro-conductive rings attached thereto, circumferentially immovable bilateral inductors having a core fixed to an arm half-hingedly coupled with a frame mounted to the axle enabling axial displacement of core relatively to the rotor, a winding having a first and third coils cross-wisely wound up on the core, and a second coil transversely wound up between the first and the third coils, forming two magnetic fluxes running in the opposite directions on the opposite sides of inductor facing the rotors, and electric cables for power takeoff mounted on the frame and passed through the axle.

Abstract: This invention relates to a novel twin wind turbine power system. More particularly, this invention pertains to a twin wind turbine power system which has adjustable width blades, adjustable width wind deflectors and a telescoping erection capability. A twin wind turbine electrical power generating system comprising: (a) a first rotatable wind turbine with vertical radially extending blades around its axis; (b) a second rotatable wind turbine deployed parallel to the first turbine with vertical radially extending blades around its axis; (c) a vertical windshield positioned windwardly between the first and second wind turbines; (d) a wind direction member associated with the first and second wind turbines and directing the first and second wind turbines and windshield to face windward; (e) a rotational support upon which items (a), (b), (c) and (d) are mounted; (f) an alternator connected to the first and second wind turbines and generating electricity as the first and second wind turbines rotate.

Abstract: The apparatus for use of flow energy has elongated circumferential elements (18) with incident-flow surfaces (34, 35) facing the flow, which elements (8) are connected parallel to one another at intervals to form a rotating cage (1) or to form a strip, which is circumferential on a guide and in which they form crossbars, and the rotation axis or deflection axes is or are arranged transversely to the flow direction, with the elements (8) each having two incident-flow surfaces (34, 35). The two incident-flow surfaces (34, 35) may have the capability to swivel into the direction facing the wind by rotation of the elements (8) when the rotor (1) or strip is running. Outside the rotating cage (1), the apparatus may be provided with essentially radially aligned guide walls (22), and the rotor (1) and the walls (22) may be provided with a roof (24) in the form of a flat truncated cone.

Abstract: A vertical axis multi-phased wind turbine power generating system is disclosed. An adjustable air scoop directs air from a first phase of the prevailing wind into an air turbine for efficient power generation. An exit section, which uses a second phase of the prevailing wind in combination with an optional and adjustable exit section drag curtain or barrier, provides for efficient re-entrainment of this first stage of power generating air back into the downstream prevailing wind. The adjustable air scoop and adjustable exit drag curtain or barrier, where utilized, is automatically rotated in a self correcting manner to be suitably and optimally oriented to the prevailing wind direction. The design provides for a second stage of power generation to be accomplished by additionally utilizing a portion of the second phase of prevailing wind to directly or indirectly drive the turbine in a second stage of power production.

Abstract: A roadway system for energy generation and distribution is presented. In accordance with one embodiment of the invention, the roadway system comprises a plurality of ground-based wind energy generating devices, one or more roads, and a roadway system electricity grid. The roadway system may additionally include, for example, a plurality of ground-based solar energy generating devices, one or more vehicle-based solar energy generating devices and one or more vehicle-based wind energy generating devices. The energy generating devices are connected to the roadway system electricity grid and substantially all of the ground-based wind energy generating devices are positioned on part of one of the roads or near to one or more of the roads to thereby allow energy generation from wind created from passing vehicles in addition to energy generation from atmospheric wind.

Abstract: A windmill assembly includes (a) a support frame; (b) a rotor rotatably mounted to the support frame for rotation around a vertical axis in response to the movement of wind passing the wind engine. The rotor includes (i) a shaft, (ii) at least two wings extending radially from the shaft, and (iii) a plurality of vanes pivotally mounted to one side of each wing and movable between a closed first position wherein the vanes prevent wind from passing through the wing and an open second position wherein the vanes permit wind to pass through spaces between the vanes and through the wing, wherein the wings are arranged such that when the vanes on one wing are in the closed position the vanes on the other wing are at least partially open.

Abstract: One aspect of the present invention relates to a vertical axis wind turbine. In one embodiment, the vertical axis wind turbine comprises a rotor comprising a vertical oriented shaft, and a plurality of vertical oriented blades angle-equally and radially secured to the vertical aligned shaft. Each of the plurality of vertical oriented blades has a face side, a back side, at least one window and at least one pane pivotally mounted onto the at least one window on the face side such that the at least one pane is rotatable between a closed position and an opening position around a pivotal axis responsive to a wind condition thereof. The pivotal axis is substantially perpendicular to the vertical oriented shaft.

Abstract: A turbine generator system, having: a rotatable base; and a plurality of rotor vanes extending from the rotatable base, wherein each of the rotor vanes have helical tapered inner and outer surfaces, and wherein each of the rotor vanes is curved to catch flow perpendicular to the axis of rotation of the rotatable base and to direct the flow into a vortical flow between the inner surfaces of the rotor vanes.

Abstract: A wind driven vertical axis power generating system is disclosed. An air scoop directs air from the prevailing wind into an air turbine. An exit drag curtain provides for an efficient re-entrainment of the power generating air back into the prevailing wind. The design provides for an efficient method of utilizing the energy from a prevailing wind. The air scoop and exit drag curtain may be rotated to be suitably oriented to the prevailing wind direction. The invention is visually pleasing in shape, as well as efficient in the production of useful power.

Abstract: A vertical axis windmill includes a generator, a shaft mounted to the generator; and a plurality of blade sets. The blade set includes a blade rod rotatably connected to the shaft and carrying blades arranged on opposite sides of the shaft. Each blade is divided into first and second moment-inducing sections located on opposite sides of the blade rod. The first moment-inducing section is greater in area than the second moment-inducing section. Each blade is provided, at a predetermined location thereof, with a winglet. Stops for limiting swiveling of the blade are arranged on the blade set. When the blade set is moved so that the blades thereof are located in a windward position and a leeward position respectively, the blades are automatically and easily set at an optimum pressure-receiving condition and a least wind-resistance condition respectively, for receiving wind energy from variable directions.

Abstract: A wind-powered turbine has a housing with an inlet and an outlet. Located in the housing is a cylindrical stator array having a plurality of spaced-apart stators located in it. An annular cylindrical rotor array having a plurality of cups rotates about a central axis, fits inside of the stator array. The stators are positioned to cause air which flows around the outer periphery of the stator array to impinge on the rotors and an air handling system causes air entering the housing to be distributed substantially around the periphery of the stator array.

Abstract: Tidal forces used for generation of electrical power has long been a solution to a recognized need. A really practical device to convert the energy of the fluid flow through tidal inlets into electrical power is the subject of this invention.

Abstract: An apparatus for oscillating a vane comprising a main lever pivoted at one end about a reference axis, and pivotally coupled at the other end to the vane about a vane axis remote from the reference axis; an angle change assembly connected to the vane such that rotation of the angle change assembly rotates the vane; and, a drive assembly, the drive assembly comprising a crank arm adapted to be pivoted about a fixed crank axis; a lever drive arm pivotally connected to the main lever at a point remote from the reference axis and pivotally connected to the main crank remote from the crank axis; a coupling member having first and second coupling arms connected together at a base, the base being adapted to pivot about a coupling axis; an angle drive arm connected at a first end to the angle change assembly for rotation thereof and pivotally connected to the first coupling arm remote from the coupling axis; the second coupling arm being pivotally connected to the lever drive arm remote from the coupling axis, the

Abstract: A system for electrical power generation by utilizing wind draft force from vehicle traveling on roadways provide two types of wind turbine apparatuses, one type is for road side which sits along the side of a roadway; another type is for road center which is installed along at traffic divider line at middle of a roadway. When vehicle moves at high speed, lots energy is used to push away air in its way. By setting wind turbines on road side and middle of road, some portions of the wasted energy can be re-captured.

Abstract: A lift-type wind turbine having a substantially vertical rotating shaft and a plurality of substantially vertical blades secured to the shaft. Each blade includes a front portion, a rear portion, and a pivot axis pivotally securing the rear and front portions. The rear portion pivots relative the front portion. The blades additionally include bottom and top edges positioned on each of the front portions. Each bottom edge is arranged substantially equidistant from the shaft proximate a first circumference extending substantially horizontally about the shaft, whereas each top edge is arranged substantially equidistant from the shaft proximate a second circumference extending substantially horizontally about the shaft. The blades are angled relative to the rotating shaft. The blades have an open, drag means position as well as a closed, lift means position, and passively switch between the positions based on wind speed for efficient rotation.

Abstract: A sail wing type windmill includes an output shaft erected vertically, a foundation with a bearing disposed in the center hole provided therein for supporting the output shaft; an axle body with a roller bearing on the top end, while the bottom end thereof being conjoined to the output shaft, and the external surface thereof being formed of several spigots, and provided with an upper and a lower joint flanges; and a rudder assembly turnably conjoined to the top end of the output shaft and consisting of a turn table and a twin vaned tail wing; wherein the turn table is inserted in the center hole of the axle body, the external surface of the turn table is provided with a snaking recessed lead rail terminated into a lead portion. The twin vaned tail ring can automatically and constantly point to the wind direction so as to turn the turn table with the wind force.

Abstract: A high efficiency vertical axis wind turbine includes an optimized blade shape for increased torque output. The shape of the optimized profile includes a camber portion at a leading edge region of the blade with a maximum height to chord ratio (Y/C) at when the non-dimensional chord length (X/C) is approximately one third. An intermediate region follows the leading edge region and is characterized by a shallow convex region, followed by a flow reattachment surface at the trailing edge region characterized by a second concave region and a local maximum of the height to chord ratio at approximately four fifths of the non-dimensional chord length.

Abstract: A wind power plant having a tower open at the top and provided with a side inlet for the wind for generating a cyclone in the tower and a substantially horizontal turbine that has inlets through the base and an outlet to the center of the cyclone in the tower and that is driving a generator. The tower is rotatable and has a non-circular elliptical shape viewed in the horizontal plane. This shape increases the power of the wind power plant as compared to a tower with a circular shape. During operation, the tower is turned so that the wind inlet is always facing the wind.

Abstract: A vertical axis wind turbine wherein the blades of the rotor section of the wind turbine comprise at least sections wherein the blades have a non-linear configuration in the “z” axis. In a preferred embodiment, the blades of the rotor section have a linear trailing edge with a non-linear, and preferably helical, surface configuration. This particular design allows the blades to provide both a rotational force and a positive or negative lift component. Further, the blades define an open area in the center of the rotor section through which air flow can pass in order to create a vertical vortex of air. As such, a more efficient vertical axis wind turbine provided.

Abstract: A device and method for conversion of the energy of medium flows are provided. The proposed device and method ensure suppression of the vortex streams in the flow on the leg of its motion along the radially converging trajectories and concentration of the flow energy, which is expressed by the increase of its velocity and decrease of the summary area of the cross section of the converging trajectories. As the flow runs along the first system of helical trajectories the following takes place: the harmful secondary vortex jets continue attenuating, the degree of concentration of the flow energy increases and velocity components form in the flow, which correspond to natural vortex streams, for instance, tornadoes, whirlpools.

Abstract: A wind turbine including an open hub, foldable blades attached to the rim of the hub, and a mechanism for tilting the turbine is disclosed.

Abstract: A water wheel assembly is disclosed and comprises a water wheel including a plate having a rotation axis and a plurality of circumferentially-spaced receivers, each including a first slit defined through the plate, proximal to the axis, and a second slit defined through the plate, distal to the axis. A vane is provided for each receiver and includes: a body hinged to the plate for movement between a lowered position, flush therewith, and a raised position, angularly extending therefrom; and a pair of flaps extending from the body to: project through respective slits and beyond the plate when the body is lowered; and define, in combination with the body and the plate, a scoop, when the body is raised. The plate is mounted in a flow of water with its axis normal thereto and such that the plate is free to rotate about the axis.

Abstract: A power generating apparatus comprises an electrical power generating device, a vane-carrying structure and a mounting flange. The electrical power generating device includes a body and a power input shaft extending from within the body. The body is generally cylindrical shaped with opposing end portions. The power input shaft extends from a first end portion of the body and a power cord extends from within the body adjacent a second end portion of the body. The vane-carrying structure is attached to the power input shaft and includes a plurality of elongated vanes each have a longitudinal axis that extends generally parallel to a rotational axis of the power input shaft. The vanes are evenly spaced around the power input shaft. The mounting flange is positioned between the vane-carrying structure and the body of the electrical power generating device and is attached to the body of the electrical power generating device. The power input-shaft extends through an aperture of the mounting flange.

Abstract: A Savonius three bladed vertical axis wind turbine rotor has operational characteristics superior to those of conventional three bladed rotors. The blades have high curvature and a high skew factor, for example a curvature of greater than 7:1 (e.g. 2:1-5:1), and a skew factor of greater than 0.6 (e.g. 0.78-0.9). The rotor also includes at least one vertical shaft, the blades operatively connected to the shaft. The rotor typically has an aspect ratio of at least 2:1. The rotor typically has a maximum power coefficient (Cp) of at least twice that of an otherwise identical rotor with a skew factor of 0.5 or less. The rotor can drive a generator with a drive which automatically increases the effective gear ratio as the rotational speed of the rotor increases; or the rotor can be connected to a propeller of a multihull wind powered boat.

Abstract: A lift and drag-based vertical axis wind turbine in which the vertical axis and foils mounted thereon are magnetically levitated above the turbine's base, thereby reducing friction within the system. The foils or vanes are three-dimensionally shaped about the vertical axis so as to resemble the billowed sail of a sailing ship and capture wind through 360 degrees of rotation under any wind condition. The system has an axial flux alternator using variable resistance coils which can be individually and selectively turned on or off depending on wind conditions and electrical draw requirements. The coils can also be used to produce mechanical drag on the system as desired to brake the turbine in high wind conditions or for maintenance. The system may be programmed to assess whether electricity generated by the system can be or should be transmitted to a public grid or stored locally on a chargeable battery system.

Abstract: Presented is a physically and environmentally attractive fluid energy powered rotor driven power generation system that is attached to an anchored waterborne device such as a boat hull such that the power generation device is automatically directed so that its water inlet is facing oncoming water currents. In its optimum configuration, it achieves high efficiencies by redirecting incoming fluids forward to add positive rotational energy to a side of the rotor what would otherwise have an anti-rotational drag force component. The power generation system is, in its preferred arrangement, rotatable so that it may be removed from the water for cleaning or during transport of the waterborne device. A remotely controlled buoy system may be incorporated to raise or lower the anchoring line.

Abstract: Presented is a physically and environmentally attractive fluid energy powered rotor driven power generation system that very efficiently extracts energy from both wind and water currents and that offers easy low cost manufacture, transportation, and installation due to its modular pre-fabricated design concepts. It achieves its high efficiencies by redirecting incoming fluids forward to add positive rotational energy to a side of the rotor what would otherwise have anti-rotational drag.

Abstract: Provided are, among other things, a system for generating energy, in which a row of wind turbines is disposed on the top side of an elongated horizontally oriented barrier, with electrical generators coupled to and driven by the turbines.

Abstract: A wind turbine apparatus, comprising an upright shaft defining an upright axis, at least two blades operatively connected to the shaft to rotate about the shaft axis as the blades are wind driven about the axis, the lowermost portion of each blade being offset, azimuthally, relative to the uppermost portion of each blade, baffles carried by the blades to project directionally to receive impingement of wind for creating torque transmitted to the blade to effect blade rotation about the axis.

Abstract: A mechanical device consisting of two horizontal shafts (4 & 5) in cruciform each rotating axially within two sets of bearings (6), each set positioned near either end and interfaced upon a rotor base (10) which itself is fixed to a vertical power shaft 11 centrally. The powershaft rotates within two other sets of bearings (12). The horizontal shafts are each bolted to and pair of aerofoil section wings (2 & 3) through their respective flange plates (7), each wing being regulated axially by a cam (8) in 90 degree relationship. At any given moment, one wing will always resist (2b & 3b) the external power source (1) of wind or water current thereby bringing about rotation of the powershaft, whilst the opposite wings (2a & 3a) will transiently adopt a free flow posture.

Abstract: Disclosed is a tower for a wind power station comprising a machine pod disposed on the tower and a rotor mounted on the machine pod so as to be rotatable about an essentially horizontal axis. Said rotor is provided with at least one blade. The tower is composed of a tubular upper section that is connected to a lower section which is embodied as a lattice tower in a transition zone. The lattice tower encompasses at least three corner posts. The upper tower section forms at least one sixth of the entire tower. The cross section of the lower tower section below the transition zone is greater than the cross section of the upper tower section while the transition zone is configured such that the cross section of the lower tower section is adjusted to the cross section of the upper tower section so as to optimize power flux.

Abstract: The present invention is to provide a vertical axis wind engine comprising at least one arm each having its center rotatably coupled to a vertical axis mounted on a base on the ground, each pair of the upper and lower arms adapted to define an airfoil receiving space for pivotably mounting an airfoil by pivot pins thereof; and at least one elastic stop member each provided on the arm proximate the airfoil and spaced from the pivot pins, each stop member adapted to limit a pivot angle of the airfoil and lift the pivot limitation for allowing the airfoil to pivot when the airfoil experiences a wind force larger than a maximum resistance force thereof, preventing the components of the wind engine from being damaged by strong wind or when the wind engine is operating in high speed.

Abstract: A vertically collapsible vertical axis wind turbine may be used on land, or on a watercraft (e.g. a multihull such as a catamaran). The turbine may include a substantially vertical shaft; at least two vane supports mounted by the shaft; and at least two vertically collapsible material vanes supported by the vane supports, so that the vanes are movable from a first operative position in which the vane material is substantially taut, to a second inoperative position in which the vane material collapses. The vane supports are positioned, and the vanes are constructed, so that the wind turbine preferably has a Savonius or an open helix configuration. When used on multihull watercraft a propulsion mechanism is mounted between two of the hulls, and there is an operative connection between the wind turbine shaft and the propulsion mechanism. The operative connection may be a flexible shaft having at least about a 70 (e.g. about 90) degree bend therein.

Abstract: A wind-actuated electric power alternator is disclosed. The wind-actuated electric power alternator includes an impeller enclosure having a generally triangular cross-sectional configuration. An impeller is rotatably mounted in the impeller enclosure. An alternator is coupled to the impeller for generating electricity responsive to wind-blown rotation of the impeller in the impeller enclosure.

Abstract: A wind turbine for generating electrical power having a vertical “Savonius rotor type” wind rotatable turbine with multiple fixed pitch blades and a rotatable wind inlet duct having an identical number of multiple infuser-shaped aerodynamic guides as the pitch blades and is mounted in the duct to direct equal air flow at higher speed to load each of the multiple fixed pitch blades to form an infuser system. The wind-rotatable turbine is mounted within the inlet duct and infuser system. A synchronous generator is driven by the vertical turbine and an electrically driven hold-down spring system enables the wind turbine to disconnect from the generator when the wind speed is above maximum safe operating speeds.

Abstract: The present invention relates to a windmill device rotating by a wind power. More particularly, to efficiently obtain rotating energy irrespective of a wind direction, the present invention is firstly characterized in that assuming that an outermost radius as a distance between the remotest position of each blade from the center of a vertical shaft and the vertical shaft is r1, an innermost radius as a distance between the nearest position of each blade to the vertical shaft and the vertical shaft is r2, and the angle (rad) of an arbitrary position r in an inner peripheral surface of the cross-section of the blade by regarding a line segment for connecting the remotest position from the vertical shaft to the vertical shaft as a reference is t (in this case, 0<=t<=2?/3), the form of the inner peripheral surface in the cross-section of each of the three blades satisfies a following formula: r=(r1?r2)×((t?2?/3)×2)/(2?/3)×2+r2.

Abstract: A wind power plant includes four main elements: a foundation (29), at least one supporting structure (21), a carrying construction (23) having a vertical axis (25) and being rotatable around the vertical axis, and at least one rotor (45), (49), (52) positioned on the carrying construction. The rotors can have horizontal, vertical, and inclined axes of rotation in different combinations. Each rotor has at least two blades (53) arranged along its axis of rotation. Since the rotors used in the invention have a small diameter, the wind power plant can produce energy under high and low wind speeds, consequently producing more energy per year than known wind turbines. Also, because the rotors have rectilinear blades for their manufacture expensive composite materials and complicated expensive equipment are not required. For these reasons the wind power plant of this invention will produce energy at lower cost.

Abstract: A reactive turbine, each blade of which approximates a helical shape that is constructed with readily available conventional manufacturing techniques. The blades are constructed in discrete straight sections that, when joined, approximate a helix or any other efficient turbine shape. Each section is manufactured with the well known and readily available machine shop techniques of shaping, forming, and joining with welds or fasteners.

Abstract: In accordance with certain embodiments, a wind turbine blade includes an outer skin and an internal support structure. The skin has a closed airfoil shape and includes an outer surface, an inner surface, and opposite sides along a length of the blade. The internal support structure is disposed within the closed airfoil shape. The internal support structure includes at least one shear load bearing member disposed across the opposite sides and oriented lengthwise along the length of the blade. The internal support structure further includes a plurality of bending load bearing members disposed along the inner surface in a lengthwise direction along the length of the blade. The internal support structure is configured to position a shear center and a center of aerodynamic pressure loading of the blade at different locations relative to one another.

Abstract: A vertical shaft is provided and supported whereupon are mounted sails that can so self adjust as to interact with the wind in such a way as to power a windmill as well as relieve themselves from winds that are too severe while maintaining continuous operation.

Abstract: A wind turbine assembly includes a venturi passage and a rotor in proximity thereto for rotation about an axis lying substantially perpendicular to the venturi passage. A rotor chamber partially surrounds the rotor. A port communicates between the rotor chamber and a low pressure point of the venturi passage. A remaining exposed portion of rotor is rotated by wind forces pushing the rotor. Communication of the rotor chamber with the venturi passage reduces pressure in the rotor chamber to increase efficiency of the wind forces pushing on the rotor blades.

Abstract: A vertical shaft driving device wherein a plurality of rotary blades (8a, 8b, 8c and 8d) each including a blade (10) supported on a planetary shaft are equally arranged circumferentially of a central shaft (12) and capable of orbital motion integrally with the central shaft (12), and wherein the rotary blades are arranged in a multipoint intersection form, in which blade faces of the blades (10) are obliquely disposed with respect to radial directions with a center at the central shaft (12). By arranging the blades (10) in the multipoint intersection form, it is possible to provide the vertical shaft driving device, in which air flows or water flows can be efficiently utilized to obtain a great output power.

Abstract: The invention describes an Atmospheric Vortex Engine in which a tornado-like convective vortex (37) is produced by admitting air tangentially in the base of a cylindrical wall (1). The vortex is started by heating the air within the circular wall (1) with fuel (83). The heat required to sustain the vortex once established can be the naturally occurring heat content of ambient air or can be provided in a peripheral heat exchanger mean (61) located outside the circular wall. The heat source for the peripheral exchanger mean can be waste industrial heat or warm sea water. The preferred heat exchange mean is a crossflow wet cooling tower (61). The mechanical energy is produced in a plurality of peripheral turbines (21). A vortex engine could have a diameter of 400 m; the vortex could be 100 m in diameter at its base and extend to a height of 1 to 15 km; the power output could be in the 100 to 500 MW range.

Abstract: A guided fluid driven turbine to upgrade the efficiency in converting fluid kinetics into rotation kinetics by having a specific directional guide unit adapted to a fluid driven turbine for the fluid to be guided the open-end, specific directional guide unit extending from its head along the load side of the turbine, thus to change the fluid pressure on the load surface of the turbine.