Abstract: A wind turbine apparatus having a plurality of blades, a shaft connecting the blades and a housing for the blades. The housing is configured to provide an operational angle of over approximately 90 degrees. A wind turbine system having at least one wind turbine apparatus with a housing having a top enclosure and a bottom enclosure. The wind turbine system also includes a post pivotally connected to the at least one wind turbine apparatus and an electrical generator operatively connected to the at least one wind turbine apparatus. A method of wind tunneling wind to a wind turbine apparatus, which includes routing wind towards withdrawing blades of a wind turbine apparatus via a top enclosure; and routing wind towards arising blades of a wind turbine apparatus via angled slots provided in a bottom enclosure.

Abstract: A stackable nacelle for a wind turbine includes a first piece having a top wall and integral first side walls extending at a first obtuse angle from each edge of the top wall; and a second piece, for mating with the first piece, having a bottom wall and integral second side walls extending at a second obtuse angle from each edge of the bottom wall.

Abstract: Various embodiments of a wind turbine are disclosed having a plurality of pivotable slats disposed about a rotor coupled to one or more blades. Each of the plurality of slats can be pivoted such that the open slats on a windward side redirect the wind to cause rotation of the rotor and the closed slats on a leeward side retain at least a substantial portion of the wind within the interior.

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: A fluid-driven mill includes: a supporting unit including a vertical shaft and a plurality of stoppers; and a plurality of vertical plate members, each of which is pivoted to the supporting unit so as to be rotatable relative to the supporting unit about a corresponding rotational axis which is parallel to a central vertical axis defined by the vertical shaft between a pushing position and a release position. The vertical plate members are angularly displaced from each other and are disposed around the central vertical axis. The stoppers are disposed between the vertical shaft and an imaginary cylindrical plane formed by the rotational axes.

Abstract: The invention teaches a turbine capable of receiving wind power and transferring wind power into mechanical energy, and capable of coupling with a generator. The turbine includes a generally flat horizontally mountable support plate capable of rotation about a central axis, the support plate having a plurality of pivot modifications located proximate to an outside circumference, and vanes coupled to the support plate at the pivot modification, each vane having a vane shaft coupled between a pivot modification on the first support plate and a pivot modification on a cap plate, each vane supported by a first rib and a second rib having an exterior edge defined as the exterior circumference edge of the head and the interior circumference edge of the tail, and a material attached between the exterior of the first rib and the exterior of the second rib.

Abstract: Vertical axis turbine apparatus is described in which a rotating blade turbine member mounted on a fixed base includes one to fifty, preferably two or three, upwardly and outwardly inclined spars. On each spar is set at least one aerofoil or hydrofoil section blade. If there is more than one spar, the spars are preferably held to one another via a plurality of guy wires.

Abstract: A device (10) for capturing energy from a fluid flow is disclosed. The device (10) comprises a base (12) adapted for stationary mounting relative to the fluid flow. A member (20), having a longitudinal axis (21), is movably connected relative to the base (12) and is adapted to move relative to the base (12) towards a position in which the longitudinal axis (21) generally aligns with a vertical plane parallel to the direction of the fluid flow passing the member (20). A lift generating element (26) is connected to the member (20) and is movable relative to the direction of the fluid flow to vary a direction of lift produced by the lift generating element (26) as fluid flows therearound. The lift generated by the lift generating element (26) drives the member (20) in oscillatory motion relative to the base (12). An energy transfer mechanism is attached to the member (20) and is adapted to be driven by the oscillation of the member (20).

Abstract: The vertical windmill includes a rotatable wind wheel column mounted to a base. The column includes a plurality of hollow wheel hubs stacked vertically atop each other. Each wheel hub includes a plurality of radiating mounting arms equidistantly spaced around the axis of the wheel hub such that the arms of an adjacent hub are angularly offset with respect to the other. A plurality of mounting assemblies is disposed on each of the mounting arms for mounting an array of wing blades. Each alternate stacked wheel hub and mounting arms together forms a wind wheel with vertically oriented wing blades mounted between upper and lower spaced arms such that the top wheel is interconnected with the lower wheel at a height less than the height of the blades. Each array of blades may freely rotate or be positively rotated to orient the blades for optimum usage of wind power in rotating the column.

Abstract: A wind driven power generator has a rotational shroud assembly for maximizing wind input and a turbine assembly with a shaft that rotates within the shroud assembly. The shaft end extends through the base of the shroud assembly. The turbine assembly has elongate arms attached to the top portion of the shaft of the turbine assembly. Each arm is essentially perpendicular to the shaft and has a vertical wind blade attached to each of the arm ends and spaced equidistance apart around the shaft of the turbine assembly. The shroud assembly covers approximately half of the turbine assembly during rotation and maintains a windward direction for maximum wind on the blade fronts while shielding the back sides of the blades from the incoming wind.

Abstract: The present invention relates to a method of increasing the output of a wind turbine, wherein one or more flow surfaces are placed at a wind turbine. At lower wind speeds, the flow surfaces are set to guide the wind up towards and/or out from the rotor of the wind turbine and hence use the venturi effect in the rotor to advantage. At higher wind speeds, the flow surfaces are completely or partially taken out of the flow of the wind. Moreover, the flow surfaces can be adjusted around the wind turbine based on measurements of the speed of the wind and direction of the wind and/or the power signal of the wind turbine. The invention further relates to a system comprising one or more flow surfaces and means for adjusting same to the effect that the output of a wind turbine can be maximized by using the venturi effect to advantage as described above.

Abstract: The present invention concerns a wind turbine having a plurality of vertically extending airfoils forming a rotating carousel rotating about a central axis thereof. The airfoils pivot about their leading edges to adjust the pitch angle thereof to maximize energy harvest when the airfoils are rotating both in an upwind direction and in a down wind direction. This pivoting movement results from trailing edges of the airfoils being pivotally secured to rigid spokes or cables of a trailing edge hub. An adjustment mechanism is pivotally mounted between a carousel hub and the trailing edge hub and is used to control the separation between a central axis of the trailing edge hub and the axis of rotation of the carousel as they co-rotate. As the carousel rotates, the offset distance between the two axes determines the maximum achievable pitch angle of each airfoil.

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 Savonius vertical axis wind turbine rotor, that is effective yet relatively easy to manufacture, includes spokes, vanes, and fasteners. Each spoke has a hub having a central opening, three arcuate ribs extending radially outwardly from the hub with inner (concave) and outer (convex) surfaces, and channels defined in at least one of the inner and outer surfaces. The vanes of sheet material generally conform to an inner or outer surface of a rib and have openings aligned with the channels. First fasteners pass through the openings and cooperate with second fasteners in the channels. Two of the spoke pieces may be joined by a bridging piece, and two spoke pieces by a clamp. A Savonius or helical rotor includes a generator, and a drive connecting the generator and rotor. The drive automatically increases the effective gear ratio between the generator and rotor as the speed of rotation increases.

Abstract: A helical turbine with a circular member attached to one end for redirecting axially flowing fluid into perpendicularly flowing fluid. A fluid diverter for redirecting substantially perpendicular flowing fluid into axially flowing fluid. A hollow circular member attached to an opposite end of the turbine allowing substantially axial flowing fluid into one end of turbine. A drive shaft of at least one generator is in continuous contact with the peripheral edge of the solid or hollow circular member producing faster rpm. A turbine assembly mounted on a rooftop utilizing accelerated wind. Fluid diverters increasing fluid flow into the helical turbine's receding blades. A fluid diverter preventing fluid from hitting turbine's oncoming blades. A tail section for maintaining optimal direction into oncoming fluid. Two counter rotating turbines where the attached circular member's edges are in continuous contact.

Abstract: This invention relates to a vertical shaft wind turbine, and particularly to an installation method of blades that can effectively improve the efficiency of a vertical shaft wind turbine. A supporting plane is connected to vertical shaft and a blade is installed on supporting plane. The airfoil of the blade is an asymmetrical camber airfoil. The convex surface of blade is installed facing the vertical shaft. The blade rotary angle is in the range of 0-15 degrees. This invention represents a remarkable progress in the field of wind power generation and is applicable industrially.

Abstract: Various embodiments of a wind turbine are disclosed having a plurality of pivotable slats disposed about a rotor coupled to one or more blades. Each of the plurality of slats can be pivoted such that the open slats on a windward side redirect the wind to cause rotation of the rotor and the closed slats on a leeward side retain at least a substantial portion of the wind within the interior.

Abstract: One embodiment of a vertical axis wind generator having a stationary vertical shaft (10) supporting with bearings (12) a larger diameter rotating shaft (11) attached by radial connections (13) and support connections (15) to circular support members (16), which are joined to equivalently spaced vertical connections (14). Attached by hinges (18) to these vertical connections (14) are plates (17) held to a radial position to the shafts (10),(11), when the wind force is on them, by cables (19) controlled by electronically controlled winches (25) attached to the circular support members (16). The wind force will close the plates on the opposite side, thus not affecting the rotation, which is transmitted through amplifying gears (21) to the generators (21). Magnetic levitation, which includes an aluminum rail (23), as shown in FIG. 4 would raise the vertical axis wind generator negating friction.

Abstract: The invention covers improvements to the Atmospheric Vortex Engine. A tornado-like convective vortex is produced by admitting air at the base of a cylindrical wall via tangential entry ducts. The heat required to sustain the vortex is provided in peripheral heat exchange means located outside the cylindrical wall. The heat source for the peripheral exchange means can be waste industrial heat or warm sea water. The preferred heat exchange means is a cross-flow wet cooling tower. The mechanical energy is produced in a plurality of turbines. The air can enter an arena via tangential entries or via an opening at the center of the arena floor. The invention can be used to produce mechanical energy, to reduce the temperature of cooled water or to produce precipitation. The invention includes a circular forced draft cooling tower that can operate in non-vortex mode or in vortex mode.

Abstract: A telescopic chimney and methods are disclosed for generation of mechanical energy using air routed through a turbine. Truncated cones stored nested together telescope to interlock when extended end to end to form a conical shape that diverges upwardly. An air output deflector at the exit of the chimney drives the exiting airflow downwards and is optionally divided into six equal radial spans so that airflow can be varied through each by a computer-controlled shutter to compensate for wind forces. An axial cable raises and lowers truncated cones. A method of deploying the chimney includes steps of closing the shutters; filling the truncated cones with heated air; controlling the rise of the truncated with the cable; and, opening the shutters. A method of collapsing the chimney includes the steps of pulling the cable to exert downward force on a truncated cone.

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: Provided are a pitch actuator for a wind turbine generator and a wind turbine generator that can be prevented from losing their reliability. Provided are a cylinder (12) and a rod (13) that rotate a wind turbine rotor blade about an axis thereof relative to a rotor head to change a pitch angle; a cylinder bearing (14, 15) supporting the cylinder (12) so as to be rotatable relative to the rotor head about a first rotation axis (L1) extending substantially parallel to the axis of the wind turbine rotor blade and about a second rotation axis (L2) extending in a direction crossing both the first rotation axis (L1) and the axis of the cylinder (12) and the rod (13); and a rod bearing (16) rotatably supporting an end of the rod (13) on an end surface of the wind turbine rotor blade.

Abstract: The invention covers improvements to the Atmospheric Vortex Engine. A tornado-like convective vortex is produced by admitting air at the base of a cylindrical wall via tangential entry ducts. The heat required to sustain the vortex is provided in peripheral heat exchange means located outside the cylindrical wall. The heat source for the peripheral exchange means can be waste industrial heat or warm sea water. The preferred heat exchange means is a cross-flow wet cooling tower. The mechanical energy is produced in a plurality of turbines. The air can enter an arena via tangential entries or via an opening at the center of the arena floor. The invention can be used to produce mechanical energy, to reduce the temperature of cooled water or to produce precipitation. The invention includes a circular forced draft cooling tower that can operate in non-vortex mode or in vortex mode.

Abstract: A novel three-vaned, drag-type wind turbine, wherein air, when it exits a first vane, is split into two flow paths. A first path is directed to a second vane, while a second path is directed to a third vane. The air, then, impinges on a plurality of vanes wherein the momentum of the air is altered, thus providing the force needed to drive the wind turbine. In a first embodiment, a wind shield is used to deflect a portion of the wind from entering the wind turbine, this portion being in a region where the vanes are rotating into the wind. In second embodiment, the wind shield is not used.

Abstract: The present invention is a vertical wind turbine having a turbine with a plurality of blades or wind vanes. The blades are constructed and attached to the shaft of the turbine so as to allow them to twist open to present more surface area to wind currents when a threshold rotational velocity is reached. Also presented are a novel outer shell that is placed over at least part of the shaft and a novel turbine blade.

Abstract: Apparatus for harvesting power from the wind, mounted on a vertical support or pole, has two linear “power harvesting devices” arranged in V-shaped configuration with the apex of the “V” mounted for rotation in a horizontal plane about the vertical support. The two power harvesting devices move under the influence of incoming wind to orient themselves such that the apex of its “V”-shape structure always faces the incoming wind. The power harvesting devices are each provided with blades attached for movement with a linear endless drive conveyor. With the apex of the “V” facing the wind, the blades are oriented to intercept this wind and to cause movement of the conveyor drive to which they are attached.

Abstract: A disc brake arrangement is provided as adapted for a wind turbine generator incorporating a rotor shaft supporting a rotor wheel and support ring for a rotor structure surrounded by a stator structure within a generator casing. The disc brake arrangement includes a brake disc mounted normal to and concentric with the rotor shaft and operatively connected to the support ring. A plurality of disc brake calipers are arranged concentrically with the rotor shaft and adapted to engage the brake disc.

Abstract: A hybrid type vertical shaft turbine (1) for wind power generating devices, includes a supporting structure (2) supporting, concentrically and axially spaced, an internal rotor (3) made of Savonius blades (4) and an external rotor (5) made of Darrieus blades (6), wherein the shaft (7) has the bottom end (12) which may be connected to an electric generator for transforming wind energy into electric energy, wherein both the internal Savonius rotor (3) and the external Darrieus rotor (5) have twisted blades with identical or different values in the axial direction of the turbine. The Savonius blades extend between end flanges (8, 9) to radial arms (10, 11) equispaced in each flange (8, 9) and offset between the flanges (8, 9) to accommodate the external Darrieus blades. The proposed twistings allow considerably improving the continuity of the driving torque generated with the wind velocity increasing towards medium-low, medium and medium-high velocities and vice versa.

Abstract: A vertical axis wind turbine system includes a vertical shaft rotatably mounted about a vertical axis and an upper platen coupled to the vertical shaft. Vanes are coupled to the vertical shaft and extend downward from the upper platen. Each vane has a concave face and an opposing convex face. A lower platen is coupled to the vertical shaft and to each vane. The lower platen has an opening formed therein proximate to the concave face of each vane. A plenum is disposed below the vertical axis wind turbine and is rotatably mounted about the shaft for rotation about the vertical axis. The plenum includes a top portion disposed proximate to the lower platen and has an outlet port therein. The outlet port is in fluid communication with at least one of the lower platen openings. A plenum passage provides fluid communication between a plenum inlet and the outlet port.

Abstract: A wind power generating system that is a technology for converting wind energy to electrical energy is provided. The system blocks flow of air inside the impeller, so that a high speed jet pressure on an I.G.V. (inlet guide vane) is converted to a constant pressure between the blades disposed downstream of the flow which has passed through the inlet guide vane, thus generating a large amount of torque.

Abstract: A wind turbine includes a rotor rotatably mounted to a vertically disposed shaft. A plurality of circumferentially spaced elongated mounting arms extends radially from the rotor. A corresponding plurality of elongated generally planar sails extends along and is pivotally connected to the elongated arms. Sails are balancingly mounted on the arms and rest in a rest position generally at a 45° angle relative to a horizontal disposition when not acted upon by wind or rotor rotation. As the sails drive the rotor, the balanced sails move effortlessly into and out of alignment with the direction of current flow of the wind.

Abstract: A electricity generating assembly includes a plurality of rotatable fan blades. A generator is connected to the plurality of fan blades to convert rotation of the fan blades into electricity. A plurality of shutters surround the plurality of fan blades. The plurality of shutters are movable between a first position in which said plurality of shutters are open to allow access to the plurality of fan blades and a second position in which the plurality of shutters are closed to prevent access to the plurality of fan blades. A motor is connected to the plurality of shutters to move the plurality of shutters between the first and second positions.

Abstract: An upstanding bladed rotor is journalled from support structure and a windshield assembly is also journalled from the support structure for angular displacement about an upstanding axis about the rotor. The windshield assembly includes a wind-shielding portion which extends generally about one half the periphery of the rotor and further includes a wind vane operative to maintain the assembly in predetermined position relative to wind incident upon the rotor with the wind-shielding portion in position to shield generally one lateral half of the rotor from the incident wind.

Abstract: A vertical axis wind turbine which includes a rotor having three radially extending blades spaced at even intervals about a central axis. Each radially blade having an outer edge that lies on an imaginary circle of a first diameter. Each radially extending blade including a plurality of spaced airfoil sub-blades separated by gaps for the passage of air therethrough. Each of sub-blade having a leading vertical edge, and a trailing vertical edge and being positioned with the trailing vertical edge along a common radius line of the imaginary circle. Each sub-blade is skewed such that its cord line is rotated negative 45 degrees with respect the radius of the imaginary circle. The airfoil sub-blades maximize energy production by creating a secondary wind flow of a higher velocity for impingement upon blades of the rotor, and utilize backpressure during the second half of a rotation cycle to efficiently break the rotor against overspeed.

Abstract: A vertical axis omni-wind turbine having a wind sail centrally mounted to a rotor, the wind sail consisting of two vanes one on each side of the rotor in generally planar arrangement. The vanes are substantially identical with each having a generally concave surface with an opposite or reverse face that is generally convex. As assembled and mounted to the rotor, one vane presents the concave face to the wind while the vane 180 degrees away presents the convex face. The concave face operates to capture the wind to force rotation of the rotor while the convex face offers minimal resistance to rotor rotation. With continued rotation the reverse, or backside, of the convex surface, which is a concave face, is then presented to the wind, thus to provide continued rotation.

Abstract: A vertical axis wind turbine (VAWT) assembly effects sharing of the axial load on its bearings to increase equipment life and/or effective operation. The assembly includes: a support; a VAWT (e.g. Savonius) having a substantially vertical shaft; at least lower and upper substantially vertically spaced bearings mounting the shaft for rotation about a substantially vertical axis, the bearings operatively mounted by the support; and a load-sharing assembly connected to the upper bearing which allows the bearings to share at least 10% (such as 50-50) of the axial load. The load sharing assembly may include a spring surrounding an upper portion of the shaft, and operatively engaging the upper bearing. The shaft may include an upper shall extension, and the load sharing assembly a spring end cap operatively connected to the upper shaft extension and holding the spring against the upper bearing.

Abstract: A ducting structure for generating wind power from a vertical structure. The ducting structure includes a main housing sized and shaped to be coupled to a wind turbine and located on the vertical structure. The main housing includes a vertically oriented aperture having a first duct leading to the coupled wind turbine and a horizontally oriented aperture having a second duct leading to the coupled wind turbine. The vertically oriented aperture captures a prevailing wind and the horizontally oriented aperture captures an updraft flowing upwardly along the vertical structure. The captured updraft and the prevailing wind are guided through the first and second ducts past the coupled wind turbine.

Abstract: The Shrouded Vertical Axis Dual-Turbine Generator is a system consisting of a superstructure in the shape of a symmetrical foil, with a vertical axis turbine set into the camber of each side. The leading edge of the superstructure increases the speed of the water or air current passing around the generator. The trailing edge creates a slip stream which reduces turbulence. Shutters on each side of the superstructure control the amount of current in contact with the turbines by sliding forward or rearward to increase or decrease flow to the turbines. The turbines are modular in design and can be customized into longer or shorter turbines, depending on application.

Abstract: A device for adjusting an angle-of-attack (?) of blades in a lift-type vertical axis turbine comprising a vertical rotating axis, a rotatable cantilever support wing fixed on the vertical rotating axis, a wind rotor comprising a plurality of blades mounted on the cantilever support wing, at least one cam disposed along an axial direction of the vertical rotating axis, the axial direction of the cam being parallel to the rotating axis, and for any point in a contour line of the cam, the angle of attack ? being set according to the following formula: ?=???, wherein ? is the angle of attack; ? is an azimuth angle; ? is a rotating angle for blades; and ?, ?, and ? are preset values.

Abstract: An efficient, yet durable wind turbine is provided for use in windy environments even with extreme wind conditions. The turbine includes spaced apart frame members rotatably mounted upon a central axle for rotation therewith, and having a plurality of blades rotatably mounted between the frame members for rotation upon blade axles. Blade directors automatically orient the blades relative to the wind direction. The turbines are self starting, with the frame members rotating in one direction while the blades rotate in an opposite direction so as to move between perpendicular and parallel orientations relative to the wind stream. In one embodiment, the turbine can be oriented either vertically or horizontally. The central axles can be connected to an electrical generator or, if powered by an engine, can be used to provide torque or propulsion to a mechanical device.

Abstract: A Savonius vertical axis wind turbine rotor has first and second curved vanes having remote substantially vertical edges widely spaced form each other, and proximate substantially vertical edges more closely horizontally spaced from each other and horizontally overlapping are associated with a substantially vertical central shaft construction. The shaft construction is operatively connected to the vanes and mounts the vanes and adjacent the proximate edges. The central shaft construction may comprise a perforated shaft (e.g. a single perforated shaft), or multiple shafts. In any event, the shaft construction, and mounting of the rotor vanes, allow, during use, spillover of wind from the proximate edge of one vane to another vane during powered rotation of the vanes in response to wind. The rotor is preferably omni-directional. The rotor may have a third set of vanes, and different vertically spaced sets of vanes circumferentially offset with respect to each other.

Abstract: A vertical-axis wind turbine which has a central rotary tower upon which are fixed substantially vertical blades. The blades are capable of rotating and moving radially relative to the central tower, the movement of each blade being independently controlled based on the conditions to which it is constantly subjected so as to optimize the overall performance of the wind turbine.

Abstract: A wind turbine for generating electricity is configured as a drum with a housing that has adjustable shutters to control the amount of wind reaching the turbine blades. Alternatively, the turbine blades can be pivotably mounted and opened and closed using a cam follower, cam track system to minimize wind exposure to downstream turbine blades.

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 vertical axis wind turbine provides a rotor assembly which rotates on bearing assemblies affixed to a rotor shaft supported by a base, the rotor assembly having vertical blades mounted between top and bottom plates, and power takeoff means to provide power by direct mechanical linkage or to drive an electrical generator. The rotor assembly is partially enclosed by a housing. Attached to the side of the housing is a wind vane. Attached to the bottom side of the housing are rollers. The wind vane, in combination with the rollers, act to rotate the housing to a position that will permit the wind to act upon the exposed vertical blades.

Abstract: The present invention allows for the exploitation and transformation of eolic energy into mechanical or electric energy by means of coupling it to a fixed generator. The tower is a vertical structure that houses a vertical axis rotor and makes better use of the wind's thrust by producing a funnel and a tunnel effect over the rotor. This arrangement makes possible to obtain energy independently from the wind's direction and to use a greater range of wind intensities, avoiding stops due to great winds by incorporating a duly synchronized gate system that allows stopping, maintaining and regulating the wind-driven rotor.

Abstract: A vertical axis wind turbine having a plurality of blades spaced from a rotatable around a rotor shaft vertical to the ground. The plurality of blades are arranged in a helical pattern about the rotor shaft. Each blade is flexible to move in response to wind and has a top, bottom, leading edge, and trailing edge wherein the leading edge is in the shape of an airfoil. A hub having a plurality of blade attachment rods radially extending from the rotor wherein in one blade is secured to one of the attachment arms. The hub has a plurality of attachment rods radially extending from the rotor wherein one blade is secured to one of the attachment rods near the center and wherein the top of each blade is closer to the rotor than the bottom of each blade.

Abstract: A wind powered turbine engine comprising an internalized containment and control chamber, intake enhancement, vacuum induction exhaust port and horizontally rotating rotor The turbine functions similarly to a steam or gas turbine engine. The radius of the control chamber decreases progressively as it curves around the periphery of the turbine rotor in the manner of a spiral.

Abstract: A method and apparatus (10) for extracting energy from flowing fluids using a diffuser (11) which has side walls (14) formed from a series of aerofoil section members (15) with gaps (29) provided between the leading and trailing ends of the members (15) to allow introduction of fluid from outside of the diffuser (11) into the diffuser flow passage (16) such that increased energy can be extracted from the flowing fluid by a prime mover (20) located in the flow passage (16).

Abstract: A system and method for orienting first and second reaction turbines relative to an axis of rotation responds to a fluid flow having a flow orientation axis. The fluid flow is received in a casement. The casement has first and second endplates situated parallel and spaced apart along the axis of rotation. A first half of the fluid flow drives the first reaction turbine to rotate with a first spin orientation in a plane perpendicular to the axis of rotation to produce a first torque about the axis of rotation. The second half of the fluid flow drives the second reaction turbine, offset from the casement plane relative to the first reaction turbine, with a second spin orientation opposite the first spin orientation to produce a second torque about the axis of rotation. The casement is oriented about the axis of rotation in response to the first and second torques.