Aerogenerator with horizontal axis

FIELD: power industry.

SUBSTANCE: aerogenerator includes container, movable construction and the mast on which assembly of aerogenerator and rotor is installed. Rotor blades are fixed and located about horizontal rotation axis and made in the form of the half of flattened cone; at that, for specified height H of flattened cone the base B1 has diametre D1 equal to 0.25-fold height, and vertex B2 has diametre D2 equal to 0.083-fold height. Each blade has inclination angle ψ, which is 10° to 16° in relation to rotor rotation axis.

EFFECT: aerogenerator is noiseless, started at low wind speed and can operate at strong wind, requires very small mast, which considerably decreases negative effect on landscape and on environment, and can be intended for housing developments, individual houses, ships, trailers, and for agricultural buildings and for any other areas where electric or other energy is required.

21 cl, 11 dwg

 

The present invention relates to aerogenerator with a horizontal axis.

Usually aerogenerator contain the rotor formed by the blades perpendicular to the axis of the transmission, such as aerogenerator disclosed in documents FR-A-2826065, publ. 20.12.2002, FR-A-791094, publ. 22.09.2000, FR-A-2869068, publ. 21.10.2005. These blades have the following disadvantages:

- stop operation at high wind speed,

- change the landscape because of too large dimensions,

- negative impact on the environment

- the noise.

The device in accordance with the present invention allows to eliminate or limit these drawbacks:

- work with a strong wind and run at low wind speed,

- reducing changes in the landscape,

- limit the negative impact on the environment

- lack of vocalization.

The device in accordance with the present invention converts kinetic wind energy into mechanical energy. Thus, the mechanical energy of the rotor can be converted into electrical energy (the interaction with an electric generator). The invention can be used as a hydraulic turbine by immersing the rotor in a mass of moving water. It can be used on the principle of tidal power plants or hydroelectric power.

Rotor blades can is about to run out of all types of materials (metals, composites, wood and so on).

The invention is illustrated by the description and the accompanying drawings.

The object of the invention is aerogenerator with a horizontal axis, rotating in the direction of the wind and containing a rotor equipped with twisted blades in the shape of half of a truncated cone, almost parallel to the axis of rotation; a container; a movable structure and an enclosure which includes the whole complex of the rotor/container/mobile design.

The rotor may contain two, three or four blades, mounted on the transmission shaft or the axis of rotation (Fig.1-4).

What follows is a description of the shape and configuration space of the blade (Fig).

The blade in accordance with the present invention has the shape of half of a truncated cone (1-10).

The aspect ratio of the blades is expressed as follows:

for a given height H of the truncated cone:
- base diameter: D1=0,25×H
- diameter of top: D2=0,083×H

Consider this blade is located in space in relation to the coordinate system (x, y, z) (5-8).

The top (smallest side half of a truncated cone B2 diameter D2 is located around the rotation axis (y) with angle of twist β, in the range of 20° to 30° with respect to the base (longest side half of a truncated cone) B1 diameter D1.

As a result, the basis B1 has a tilt angle of α=11°, a base B2 - angle γ=9° in the plane (x, y) (6).

The blade has a tilt angle ψ (psi)constituting from 10° to 16° with respect to the axis of rotation of the rotor (Fig).

To schematically represent the slope, take the axis of the transmission shaft (R). When the rotor has two or four blades, they are diametrically opposed on the gear shaft (or rotation axis) (Fig 1, 3, 4).

When the rotor has three blades, they are at an angle of 120° relative to each other (figure 2).

The blade is fixed on the transmission shaft at two points. These mounts are provided with flanges on two hub fixedly connected to the transmission shaft (figure 10, 11).

On the Foundation level B1 flange is fixed directly to the hub.

On the Foundation level B2 flange still mechanically connected to the rear wheel hub by means of a tubular element stiffness.

Behind each blade (leeward side) is the flap speed control (figure 3). This panel provides two functions:

1. It allows you to adjust the speed of rotation of the rotor by changing the angle of attack. This angle of clicks the IAOD between the plate and the axis of rotation of the rotor.

Assume that the maximum wind speed is (x) m/s While the wind speed is in the range from 2 m/s to (x) m/s, shields speed regulation remain in its position so that the kinetic wind speed at the exit of the blade.

As soon as the wind speed becomes greater than or equal to (x) m/s, the flaps are rotated thereby to reduce the speed of rotation of the rotor.

The stronger the wind blows, the less the angle of the flap relative to the direction of the wind.

2. It provides the function of the additional blades for use of the kinetic energy of the wind on the blades. The rotor Assembly is mounted on two support bearings at each end of the transmission shaft (figure 2 and 3).

These bearings are mechanically fixed to the movable support structure in a U-shape. The movable support structure is installed on the mast.

At the top of the mast made the system complex supporting structure/rotor.

The mast base includes a fixed base mounted on a reinforced concrete Foundation.

1. Device for the generation of energy through wind power, characterized in that it is made in the form of aerogenerator containing container, a movable structure, a mast on which is mounted a node aerogenerator and rotor blades which is executed in the form of half of a truncated cone, the shape of the blades in the shape of half of a truncated cone made so that for a given height H of the truncated cone base B1 has a diameter D1 equal to 0.25 times the height and node B2 has a diameter D2 equal 0,083 times the height, and each blade has an angle of inclination ψ of 10 to 16°, with respect to the axis of rotation of the rotor.

2. The device according to claim 1, characterized in that the axis of rotation is in the direction of the wind.

3. The device according to claim 1, characterized in that the rotor is equipped with two or four blades.

4. The device according to claim 2, characterized in that the rotor is equipped with two or four blades.

5. The device according to claim 3, characterized in that the blade is fastened around the rotation axis in diametrically opposite positions.

6. The device according to claim 4, characterized in that the blade is fastened around the rotation axis in diametrically opposite positions.

7. The device according to claim 1, characterized in that the rotor has three blades.

8. The device according to claim 2, characterized in that the rotor has three blades.

9. The device according to claim 7, characterized in that the blades are fixed and are arranged around the axis at an angle of 120° relative to each other.

10. The device according to claim 8, characterized in that the blades are fixed and are arranged around the axis at an angle of 120° relative to each other.

11. Device is about according to any one of claims 1 to 10, characterized in that the blades in the shape of half of a truncated cone located around the axis of rotation of the twist angle (β), constant along the blade.

12. The device according to claim 11, characterized in that the twist angle (β) is in the range from 20 to 30° with respect to the basis B1.

13. The device according to any one of claims 1-10, 12, characterized in that the base B1 is the slope angle α, equal to 11°, with respect to the plane formed by the axis of rotation (y) of the blade and a straight line (x), crossing perpendicular to the axis of rotation (y), and passing through one end (A) of the basis B1.

14. The device according to claim 11, characterized in that the base B1 is the slope angle α, equal to 11°, with respect to the plane formed by the axis of rotation (y) of the blade and a straight line (x), crossing perpendicular to the axis of rotation (y), and passing through one end (A) of the basis B1.

15. The device according to any one of claims 1-10, 12, 14, characterized in that the base B2 is tilted at an angle γ equal to 9°, with respect to the plane formed by the axis of rotation (y) of the blade and a straight line (x), crossing perpendicular to the axis of rotation (y), and passing through one end (A) of the basis B1.

16. The device according to claim 11, characterized in that the base B2 is tilted at an angle γ equal to 9°, with respect to the plane formed by the axis of rotation (y) of the blade and a straight line (x), crossing perpendicular to the axis of rotation (y), prohodjashei through one end (A) of the basis B1.

17. The device according to item 13, wherein the base B2 is tilted at an angle γ equal to 9°, with respect to the plane formed by the axis of rotation (y) of the blade and a straight line (x), crossing perpendicular to the axis of rotation (y), and passing through one end (A) of the basis B1.

18. The device according to any one of claims 1-10, 12, 14, 16 and 17, characterized in that the rear of each blade has a flap speed control.

19. The device according to claim 11, characterized in that the rear of each blade has a flap speed control.

20. The device according to item 13, wherein the back of each blade has a flap speed control.

21. The device according to item 15, wherein the back of each blade has a flap speed control.



 

Same patents:

Wind turbine rotor // 2392486

FIELD: engines and pumps.

SUBSTANCE: invention refers to wind power engineering, particularly to rotor to be used in wind turbines. Rotor has central bushing, casing and many radial blades adjacent with far ends to the casing in circular section with smaller diametre. Besides rotor is equipped with a connecting ring and many additional radial blades arranged between central bushing and connecting ring, the number of which is smaller than the number of the blades adjacent to the casing. Circular section of the casing with smaller diametre can be the first edge section downstream the wind, owing to which the adapter of casing from the first edge section to the second circular edge section with larger diametre has divergent shape, or the second edge section downstream the wind, owing to which the adapter of casing from the first edge section with larger diametre to the second circular edge section has convergent shape, and blades have the surfaces passing in the direction of the first circular edge section, or it can be intermediate so that two opposite adapters of divergent shape are formed; at that, the first edge section downstream the wind is made with the diametre smaller than that of the second edge section. Adapter of casing can have curved or straight-line profile.

EFFECT: improving energy generation efficiency and decreasing noise and dimensions at available versatile construction.

7 cl, 16 dwg

Wind wheel // 2391555

FIELD: power industry.

SUBSTANCE: invention can be implemented for conversion of kinematic energy of wind into electric energy in wind engines with axis of rotor rotation coinciding with direction of wind. The wind wheel consists of a hub with tubular spokes whereon there are secured blades in form of triangle made as sail empennages. Their top is located near the hub, while a base is connected with a draw rod. Flexible components interacting with a rod and composed of at least two parts with different module of elasticity are arranged in the tubular spokes. The rod is tied with a draw rod passing through a roller with a bracket installed in a link. The link is hinged in a nut mounted on an upper part of the spoke.

EFFECT: increased reliability at rapid change of direction and velocity of wind.

2 dwg

Windwheel // 2386852

FIELD: power industry.

SUBSTANCE: two-blade windwheel made from sheet material is a solid cut from cylindrical tube as per the outline of the pattern applied to the tube along its generatrix and the symmetry axis of which coincides with gravity centre of windwheel. Windwheel can be made so that angle of decalage of each blade is made so that it decreases from the bottom to the blade end by narrowing the pattern ends. Blade can be covered with the material so that blade profile was similar to wing-shaped one; at that, filler can be introduced to the cavity of formed profile on concave side.

EFFECT: simple design of windwheel ensures reduction of production costs at simultaneous profile accuracy.

3 cl, 3 dwg

Windmill // 2381380

FIELD: engines and pumps.

SUBSTANCE: invention relates to wind power engineering, particularly to windmills with rotary cylinders exploiting Magnus effect. Proposed windmill comprises horizontal axis wind wheel and radially arranged cylinder-type Magnus rotors, drive of cylinders and electric generator. Every rotor comprises non-rotating root part and rotating tail part, and washer arranged on its extremity. Rotor rotating part represents s cylindrical part with truncated-cone end, cone base facing the cylinder and cone diametre exceeding cylinder diametre. Note here that cylinder and cone surfaces represent spiral ribs-augers with their turning towards cylinder rotation starting from cylinder root cross section till washer.

EFFECT: reduced inductive resistance allowing notable reduction in cylinder rotational speed and power consumption as compared to traditional windmills.

3 dwg

FIELD: transport.

SUBSTANCE: invention relates to aircraft engineering, particularly to rotors. Proposed rotor comprises disk with blades. Proposed rotor represents a disk, which can be either bladed in sector sections of the disk or flexible with flexibility increasing from rotational axis to periphery, the disk oscillating and being attached unorthogonally to vertical or horizontal shaft.

EFFECT: simplified design.

5 cl, 3 dwg

Windwheel // 2373425

FIELD: engines and pumps.

SUBSTANCE: invention relates to power engineering and can be used in windmills. Windwheel has rotational axis complying with wind direction and comprises rigid carcass fitted with protruding vane axles inclined toward wind direction. Vanes are fitted on aforesaid axles asymmetrically so that the vane smaller part is always directed forward, while its larger part seats on leeward side. Note here that weights of vane both parts are equalised. Every vane is coupled with aforesaid carcass via torsion spring, and carcass front is closed by cone fairing with its side outer surface accommodating rigid vanes, cone base circumference being enveloped by a cylinder with openings arranged opposite every vane. One edge of aforesaid opening is aligned with vane edge, while opposite edge of the said opening seats in front, along the vane motion. Proposed windwheel can be used at winds varying from weak, i.e. 1m/s, to gale.

EFFECT: higher efficiency.

2 dwg

Wind motor // 2359151

FIELD: power engineering.

SUBSTANCE: invention relates to the field of power engineering and can be used for producing electric energy. Wind motor contains a shaft to which is fastened a symmetric system of radial spokes of the shaft; a mobile bushing-pin is placed on the shaft, on which is fastened a symmetric system of radial spokes of the bushing-pin, similar to the spokes of the shaft, connected with a pin system of moving the bushing-pin along the shaft. Ends of the spokes of the shaft and the spokes of the bushing-pin are hinged and in pairs joined to each other through tangential kinematical power transmission mediums. On each of the specified spokes are stretched strips of easily compliant material, forming a sail vane-wing wind motor. The length of the tangential kinematical power transmission medium is such that, during the motion of the bushing-pin along the shaft, the angle of inclination of the tangential kinematical power transmission mediums to the axis of the shaft changes in a given range. Strips of the easily compliant material are made from elastic cloth.

EFFECT: possibility of regulating the angle of attack in the operating process of the wind motor, and also self-alignment of the wind motor to the wind.

2 cl, 1 dwg

FIELD: engines and pumps.

SUBSTANCE: invention is related to methods and facilities for transformation of energy of flows of different physical nature and may be used for transformation of wind or water flows energy. Method is realised by means of flow energy transformation into rotary motion of energy-transducing device, which comprises shaft oriented along medium flow and rotary energy-transducing element fixed in it and arranged in the form of, at least, one blade with fairing having aerodynamic profile symmetrical relative to its transverse plane and installed so that plane of symmetry of its cross section passes through shaft longitudinal axis. Blade is fixed to outlet end of fairing so that one of fairing side surfaces and external surface of blade create single aerodynamic surface, at that blade plane is shifted relative to shaft longitudinal axis. When energy-transducing device is placed in medium flow, pressure of differences is created relative to internal and external surfaces of blades.

EFFECT: pressure increase at internal surfaces of blades and rotation of energy-transducing device with simple design.

7 cl, 2 dwg

FIELD: electricity.

SUBSTANCE: inverted electromagnetic wind generator consists of hollow shaft, lead-out, single-layer three-phase winding, two end shields and metal drum fixed between end shields by means of outer flanges. Prismatic magnets are installed on inner surface of metal drum at equal distance. Prismatic magnets with longitudinal axis, which is parallel to axis of rotation, have radial degree of magnetisation N-S, the said prismatic magnets being fixed from both sides with retaining rings. Groove-free stator is placed inside metal drum and consists of cylindrical hub with central hole the aforesaid cylindrical hub being installed on hollow shaft in co-axial alignment. Cylindrical bundle is reeled on hub as metal strip installed edgewise. Single-layer three-phase winding is put above bundle. Winding ends are parallel to axis of rotation of wind generator. Guiding cylindrical bushings with circular hollows and circular guiding sections are installed in circumferential direction of groove-free stator at end surfaces. Lead-out is disposed inside hollow shaft to connect single-layer three-phase winding with lead-outs. Shaft is attached to end shield from the opposite side of hollow shaft outlet in its central part by means of flange connection.

EFFECT: electric energy supply to power grid at low rotation frequencies; high reliability and easiness in manufacture process.

3 cl, 5 dwg

FIELD: engines and pumps.

SUBSTANCE: invention relates to wind mill electric power generation and wind mill electric generators based on the Magnus effect can be used. The said generator incorporates a lengthwise shaft designed to transfer a rotary motion to the mechanism generating electric power, rotary cylinders arranged radially relative the said lengthwise shaft and drive motors to rotate the cylinders about their axes. Note here that interaction of rotary motion of each cylinder and wind initiate a lift caused by the Magnus effect that causes the rotation of the lengthwise shaft that, in its turn, triggers off the mechanism generating electric power. An appropriate means for creation of lift is arranged on the cylinders outer surfaces at a preset point to create a component of air flow, at least, parallel to the cylinder axis aligned along one direction of the cylinder peripheral outer surface from the lengthwise shaft or towards it.

EFFECT: efficient electric power generation with low and high wind speeds.

11 cl, 19 dwg

FIELD: wind-power engineering.

SUBSTANCE: invention relates to rotors providing use of oncoming flow of air for generating of power. Proposed rotor of circular cellular design has central rod or hub on which converter or motor is installed, at least two tubular cylinders installed coaxially with central rod and great number of blades forming at least four parts passing between each two adjacent tubular cylinders connecting the cylinders to each other and forming tubes together with cylinders. Tubes are bent to helical line on their length around rotor and have section in form of trapezium whose parallel bases are sections of tubular cylinders, and side walls, parts passing along radius. Tubular cylinder of larger diameter can be provided with input widening in form of truncated cone, and at output, narrowing in form of truncated cone bell.

EFFECT: provision of effective utilization of oncoming flow energy.

3 cl, 6 dwg

FIELD: transportation, engines and pumps.

SUBSTANCE: propeller has the blades everyone of which incorporates an initial section of direct acinaciform and the final section of reverse acinaciform. In compliance with first version, the propeller incorporates three and more double-fastening blades the ends of which are linked by means of a ring packing. The second version proposes the propeller with two blades forming a Mobius surface. The blade swept area features an oval rotation shape elongated along the propeller axis. The blades can be made by bending a flat sheet material into coils. The two-blade propeller has its the blades made integral. The surface sections of every propeller located on the propeller rotation axis are developed relative to each other by 90 degrees. The blades are either interconnected directly, or by means of a ring packing, or on the drive shaft extension. The development of the propeller blades represents a flat integral unit made up of spiral-shape elements.

EFFECT: set of inventions simplifies manufacturing the propeller.

22 cl, 12 dwg

FIELD: engines and pumps.

SUBSTANCE: invention relates to wind mill electric power generation and wind mill electric generators based on the Magnus effect can be used. The said generator incorporates a lengthwise shaft designed to transfer a rotary motion to the mechanism generating electric power, rotary cylinders arranged radially relative the said lengthwise shaft and drive motors to rotate the cylinders about their axes. Note here that interaction of rotary motion of each cylinder and wind initiate a lift caused by the Magnus effect that causes the rotation of the lengthwise shaft that, in its turn, triggers off the mechanism generating electric power. An appropriate means for creation of lift is arranged on the cylinders outer surfaces at a preset point to create a component of air flow, at least, parallel to the cylinder axis aligned along one direction of the cylinder peripheral outer surface from the lengthwise shaft or towards it.

EFFECT: efficient electric power generation with low and high wind speeds.

11 cl, 19 dwg

FIELD: electricity.

SUBSTANCE: inverted electromagnetic wind generator consists of hollow shaft, lead-out, single-layer three-phase winding, two end shields and metal drum fixed between end shields by means of outer flanges. Prismatic magnets are installed on inner surface of metal drum at equal distance. Prismatic magnets with longitudinal axis, which is parallel to axis of rotation, have radial degree of magnetisation N-S, the said prismatic magnets being fixed from both sides with retaining rings. Groove-free stator is placed inside metal drum and consists of cylindrical hub with central hole the aforesaid cylindrical hub being installed on hollow shaft in co-axial alignment. Cylindrical bundle is reeled on hub as metal strip installed edgewise. Single-layer three-phase winding is put above bundle. Winding ends are parallel to axis of rotation of wind generator. Guiding cylindrical bushings with circular hollows and circular guiding sections are installed in circumferential direction of groove-free stator at end surfaces. Lead-out is disposed inside hollow shaft to connect single-layer three-phase winding with lead-outs. Shaft is attached to end shield from the opposite side of hollow shaft outlet in its central part by means of flange connection.

EFFECT: electric energy supply to power grid at low rotation frequencies; high reliability and easiness in manufacture process.

3 cl, 5 dwg

FIELD: engines and pumps.

SUBSTANCE: invention is related to methods and facilities for transformation of energy of flows of different physical nature and may be used for transformation of wind or water flows energy. Method is realised by means of flow energy transformation into rotary motion of energy-transducing device, which comprises shaft oriented along medium flow and rotary energy-transducing element fixed in it and arranged in the form of, at least, one blade with fairing having aerodynamic profile symmetrical relative to its transverse plane and installed so that plane of symmetry of its cross section passes through shaft longitudinal axis. Blade is fixed to outlet end of fairing so that one of fairing side surfaces and external surface of blade create single aerodynamic surface, at that blade plane is shifted relative to shaft longitudinal axis. When energy-transducing device is placed in medium flow, pressure of differences is created relative to internal and external surfaces of blades.

EFFECT: pressure increase at internal surfaces of blades and rotation of energy-transducing device with simple design.

7 cl, 2 dwg

Wind motor // 2359151

FIELD: power engineering.

SUBSTANCE: invention relates to the field of power engineering and can be used for producing electric energy. Wind motor contains a shaft to which is fastened a symmetric system of radial spokes of the shaft; a mobile bushing-pin is placed on the shaft, on which is fastened a symmetric system of radial spokes of the bushing-pin, similar to the spokes of the shaft, connected with a pin system of moving the bushing-pin along the shaft. Ends of the spokes of the shaft and the spokes of the bushing-pin are hinged and in pairs joined to each other through tangential kinematical power transmission mediums. On each of the specified spokes are stretched strips of easily compliant material, forming a sail vane-wing wind motor. The length of the tangential kinematical power transmission medium is such that, during the motion of the bushing-pin along the shaft, the angle of inclination of the tangential kinematical power transmission mediums to the axis of the shaft changes in a given range. Strips of the easily compliant material are made from elastic cloth.

EFFECT: possibility of regulating the angle of attack in the operating process of the wind motor, and also self-alignment of the wind motor to the wind.

2 cl, 1 dwg

Windwheel // 2373425

FIELD: engines and pumps.

SUBSTANCE: invention relates to power engineering and can be used in windmills. Windwheel has rotational axis complying with wind direction and comprises rigid carcass fitted with protruding vane axles inclined toward wind direction. Vanes are fitted on aforesaid axles asymmetrically so that the vane smaller part is always directed forward, while its larger part seats on leeward side. Note here that weights of vane both parts are equalised. Every vane is coupled with aforesaid carcass via torsion spring, and carcass front is closed by cone fairing with its side outer surface accommodating rigid vanes, cone base circumference being enveloped by a cylinder with openings arranged opposite every vane. One edge of aforesaid opening is aligned with vane edge, while opposite edge of the said opening seats in front, along the vane motion. Proposed windwheel can be used at winds varying from weak, i.e. 1m/s, to gale.

EFFECT: higher efficiency.

2 dwg

FIELD: transport.

SUBSTANCE: invention relates to aircraft engineering, particularly to rotors. Proposed rotor comprises disk with blades. Proposed rotor represents a disk, which can be either bladed in sector sections of the disk or flexible with flexibility increasing from rotational axis to periphery, the disk oscillating and being attached unorthogonally to vertical or horizontal shaft.

EFFECT: simplified design.

5 cl, 3 dwg

Windmill // 2381380

FIELD: engines and pumps.

SUBSTANCE: invention relates to wind power engineering, particularly to windmills with rotary cylinders exploiting Magnus effect. Proposed windmill comprises horizontal axis wind wheel and radially arranged cylinder-type Magnus rotors, drive of cylinders and electric generator. Every rotor comprises non-rotating root part and rotating tail part, and washer arranged on its extremity. Rotor rotating part represents s cylindrical part with truncated-cone end, cone base facing the cylinder and cone diametre exceeding cylinder diametre. Note here that cylinder and cone surfaces represent spiral ribs-augers with their turning towards cylinder rotation starting from cylinder root cross section till washer.

EFFECT: reduced inductive resistance allowing notable reduction in cylinder rotational speed and power consumption as compared to traditional windmills.

3 dwg

Windwheel // 2386852

FIELD: power industry.

SUBSTANCE: two-blade windwheel made from sheet material is a solid cut from cylindrical tube as per the outline of the pattern applied to the tube along its generatrix and the symmetry axis of which coincides with gravity centre of windwheel. Windwheel can be made so that angle of decalage of each blade is made so that it decreases from the bottom to the blade end by narrowing the pattern ends. Blade can be covered with the material so that blade profile was similar to wing-shaped one; at that, filler can be introduced to the cavity of formed profile on concave side.

EFFECT: simple design of windwheel ensures reduction of production costs at simultaneous profile accuracy.

3 cl, 3 dwg

Up!