Wind engine

FIELD: engines and pumps.

SUBSTANCE: wind engine includes a horizontal shaft with the main multiple-blade wind wheel installed on it and provided with blades of enlarged surface area in the air flow direction, an outer shell and a cone-shaped guide for the air flow of the middle zone. On the hub of the main wind wheel there put is an additional multiple-blade wind wheel of a smaller diameter with a toroid-shaped guide for the air flow of the central zone. The outer shell of the additional multiple-blade wind wheel is attached to blades of the main wind wheel. On outer shells of both wind wheels, uniformly located blades of the second level are fixed.

EFFECT: invention allows increasing total surface area of blades.

3 cl, 5 dwg

 

The invention relates to wind energy, in particular wind turbine, and can be used for the construction of wind turbines with a horizontal axis of rotation of the propeller with the oncoming airflow.

Known wind turbine comprising a horizontal shaft mounted thereon multi-blade wind wheel (Wind power. M.: Energoizdat, 1982, p. 26, Fig.1.3, A4). The disadvantage of this wheel is that it is almost never used wind force Central zone.

The technical essence of the present invention is a significant increase of the total area of the blades to reduce the diameter of the propeller, increasing the torque on the shaft of a wind turbine and more efficient use of wind power Central, middle and peripheral zones.

This technical essence is achieved in that the wind turbine comprising a horizontal shaft mounted multi-blade wind wheel with blades increased the space in air flow direction, an outer sidewall and a conical wire air flow of the Central zone, further comprises on the main hub of the propeller multi-blade wind wheel of smaller diameter with toroidal wire air flow of the Central zone, an outer sidewall which is attached to the blades �main propeller. On the outer sides of both windwheels fixed evenly spaced blades of the second level. The ends of the main blades of the propeller are connected by the locking cable with clamps.

The structural changes of the wind turbine with the oncoming air flow compared to existing allow ceteris paribus significantly reduce the diameter of the main multi-blade propeller in the calculation of the installed capacity of wind turbines.

Fig.1 is a view of a wind turbine in the front.

Fig.2 shows a section along a-A.

Fig.3 given scan part of the outer shell of the main propeller blades of the second level.

Fig.4 given scan of the blades of the main propeller.

Fig.5 given scan part of the outer shell for more of the propeller blades of the second level.

The wind turbine consists of a main multi-blade wind wheel 1 (Fig.1) is fitted on the shaft 2. The 5 blades of the main propeller 1 fixed to the hub 3, a tapered guide wire 6 (Fig.2) the air flow of the Central zone and the outer shell 7, which is evenly spaced blades 8 of the second level with ribs 16 (Fig.3). To reduce vibration of the blade block 5 are connected by a cable 9 with the clamp 10 (Fig.2).

On the hub 3 of the main propeller 1 impaled additional megalopa�deleterious wind wheel 4 (Fig.1, 2) of smaller diameter, consists of two shells of the inner 11 and outer 12, which are located between the blades 13. The blades 13 (Fig.2) are expanding in the form of a concave part cylindrically surface with increasing angle of attack to the air flow. To the inner sidewall 11 of the propeller 4 is mounted toroidal wire 14 of the air flow of the Central zone. The outer shell 12 extra propeller 4 is structurally linked mutual grooves 17 (Fig.4, 5) with the 5 blades of the main propeller 1, increasing the strength of the wind turbine. On the outer shell 12 is fixed evenly spaced blades 15 of the second level.

The device operates as follows. Air flow to the turbine is conventionally divided into 3 zones of influence: Central, intermediate and peripheral. The airflow of the Central zone with a toroidal guide wire 14 sharply with increasing angle of attack with increased speed is dropped on the blade 13 additional propeller 4 in the middle zone, where the tapered guide wire 6 of the air flow of the Central zone further increases the wind speed on the blades 5 of the main propeller. Airflow peripheral zone acts most effectively on the blades 5 of the main propeller 1 and the blades 8, 15 second level Wallpaper� windwheels, as the radius (moment arm) to create a torque on the shaft of a wind turbine, number of blades and their total working area in this zone is the highest, which increases the utilization rate of wind power and efficiency of the turbines.

1. A turbine comprising a horizontal shaft mounted to the main multi-blade wind wheel with blades increased the space in air flow direction, an outer sidewall and a conical wire air flow of the Central zone, characterized in that it further comprises on the main hub of the propeller multi-blade wind wheel of smaller diameter with toroidal wire air flow of the Central zone, an outer sidewall which is attached to the blades of the main propeller.

2. Wind turbine according to claim 1, characterized in that on the outer sides of both windwheels fixed evenly spaced blades of the second level.

3. Wind turbine according to claim 1, characterized in that the ends of the blades of the main propeller associated locking cable with clamps.



 

Same patents:

FIELD: machine building.

SUBSTANCE: universal rotor is referred to machine building, in particular, to the production of rotors for windmills, hydroturbines, screw propellers, fans and aircrafts. A universal rotor comprises at least two bow-shaped blades which are set around the rotor rotation axis 3 and each of them is connected to a fastener installed along the rotor rotation axis 3. The generatrix of the cambered side surface 1 of the bow-shaped blade is located close to the plane parallel to the rotor rotation axis 3. The upper edge of the cambered side surface 1 of the bow-shaped blade is connected with the edge of the concave side surface 2 of the bow-shaped blade. The concave surface 2 of the bow-shaped blade without sharp bends and corners is inclined from the rotor rotation axis in the direction to the base of this blade. The edge of the concave side surface 2 of the bow-shaped blade is connected with the upper edge of the cambered side surface 1 of the bow-shaped blade at an angle. The opposite edge of the concave side surface 2 of the bow-shaped blade is connected with the cambered side surface 1 of the adjoining bow-shaped blade at an angle.

EFFECT: invention is aimed at the reduction of energy flow's energy losses.

2 dwg

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FIELD: machine building.

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FIELD: power engineering.

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EFFECT: inventions allow to simplify the unit operation and reliability of its transportation.

16 cl, 7 dwg

FIELD: electricity.

SUBSTANCE: invention relates to electrical engineering and wind energetics. Rotor of the segmental electric generator includes shaft, hub, rim and magnetic cores in form of two angle connections of straps, one is inside the other one. The straps have fixtures for securing on the rim. Technical result is improvement of the generator efficiency upon minimisation of its price as the rotor is magnetically interacts with the stator via two air gaps: outside and inside, thus reducing magnetic dispersion. Additional electromotive force increasing is due to additional rotor elements only, at that the magnetic field source is the same.

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1 dwg

FIELD: power engineering.

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5 dwg

Wind motor // 2508468

FIELD: power industry.

SUBSTANCE: wind motor includes a horizontal shaft with a wheel with blades, which is installed on it. In addition, the wind wheel includes a conical air flow guide fixed on a wheel hub shell and an external shell. Blades of the second level are uniformly arranged on the external shell. Blades of the first level are attached to the wheel hub shell and to the conical guide. Generatrixes of blades of the first and the second levels are curved and have an ascending air flow attack angle.

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Vane blade // 2499155

FIELD: power engineering.

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3 cl, 7 dwg

Wind wheel // 2493428

FIELD: power engineering.

SUBSTANCE: wind wheel comprises a hub with radially attached blades. Each blade comprises a groove for placement of a photoelectric generator in it. The groove is made at one side of the blade. Grooves may be made at each side of the blade.

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3 cl, 7 dwg

FIELD: power engineering.

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EFFECT: simplified design of a unit, its higher capacity, reduced prime cost of its manufacturing, increased reliability and production of cheap power.

6 dwg

FIELD: electricity.

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8 cl, 4 dwg

Wind power plant // 2538976

FIELD: power industry.

SUBSTANCE: invention refers to wind power industry and can be applied in devices converting wind energy to other energy forms. Wind power plant includes rotating base, tower, boom, cross-beam with joints and braces, and control rod with wind wheel heads and features additionally second cross-beam with additional joints connected with joints of the main cross-beam by additional brackets bearing a cable ring running through pulleys mounted on the boom. Effect of this plant is dynamic load reduction.

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4 dwg

FIELD: power engineering.

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4 dwg

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11 cl, 10 dwg

FIELD: power industry.

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6 cl, 4 dwg

FIELD: power industry.

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EFFECT: wind-driven power plant is suitable for installation in difficult-to-access places and provides the possibility of uninterrupted generation of electric energy, as well as reduction of noise and vibration impacts on the environment.

2 dwg

FIELD: power engineering.

SUBSTANCE: wind-driven power plant comprises a rotor, an intermediate reducer, a hydraulic system, a hydraulic pump, a hydraulic motor, a regulator of hydraulic motor rpm and an electric energy generator. The rotor is broken into independent stages according to the diameter, installed on coaxial shafts. The plant is equipped with an intermediate shaft that provides for transfer of torque to the shaft of hydraulic pumps, a sensor of second flow rate of liquid and a hydraulic adapter. Coaxial shafts are communicated by means of the intermediate reducer and free wheel couplings with the intermediate shaft. The total capacity of the plant is broken into separate energy blocks. The torque from each stage is sent via telescopic shafts, free wheel couplings, the intermediate reducer to the shaft of hydraulic pumps. Hydraulic motors rotate the generator rotor with continuous rotations regardless of the wind speed, since they have controllers of permanent rotations. Couplings provide for independence of stages operation relative to each other. Therefore, each stage of the rotor rotates with a different angular speed. Summation of torques of stages is carried out with an intermediate reducer.

EFFECT: higher coefficient of wind energy usage due to rotor breakdown into stages with the same diameter of the rotor.

16 dwg

Windwheel // 2494283

FIELD: power industry.

SUBSTANCE: wind wheel includes a base with bearings, a horizontal shaft, blades, rotors having magnetic contact to stators installed on the base, and reduction gears. Rotors are connected to inlet shafts of reduction gears, on the outlet shafts of which additional blades are installed, which have the possibility of being rotated relative to the main axis. Profiles of the main and additional blades have the possibility of being superimposed on each other at rotation of additional blades. At strengthening of wind, voltage is supplied to stators, which leads to rotation of rotors, outlet shafts of reduction gears and rotation of additional blades accordingly.

EFFECT: windwheel design provides the possibility of changing the number of blades depending on wind speed, improvement of reliability due to absence of a rotating current terminal, provision of noncontact.

7 dwg

FIELD: power engineering.

SUBSTANCE: plant comprises a base, an intermediate support, a vertical power structure, with installed modules of wind generators, equipment for energy accumulation, control and distribution. Modules are installed on cantilevers of horizontal sites in movable-rotary manner on bearing supports and are equipped with steering systems of stabilisation by air flow. Each module comprises a body, an energy unit, installed in the body and having an air turbine mechanically connected to the generator, comprising a stator and a rotor. The body is made with an inlet confusor and an outlet diffuser, and is equipped with an outer ejecting device made in the form of a shell embracing the body, equipped with the second outer inlet confusor and the second outer outlet diffuser. At the same time the body is made in the form of a ring made of outer and inner ring shells, connected to each other by radial stands and forming an inner through circular channel with a turbine arranged in it. The turbine disc, the generator stator and rotor are arranged in the form of rings, and the outer circuit of the inner shell of the body is made as forming a through channel, in which a fairing is installed, creating with the through channel an inner additional ejecting device.

EFFECT: increased coefficient of wind energy usage with reduced dimensions of modules and higher reliability.

2 cl, 5 dwg

FIELD: power industry.

SUBSTANCE: wind wheel includes at least three wind blade wheels installed on a common shaft. Each wind wheel represents turning blades fixed on the bushing. Bushing of one of the wheels is rigidly fixed on the shaft. Bushings of the rest wheels are moving along longitudinal axis of the shaft. Wind wheel the bushing of which is rigidly fixed on the shaft is the main wheel, and two other wheels which are located on both sides of the main wheel are moving ones. Fastening of blades of each wheel, when all bushings are connected, provides the location of wind wheel blades in one plane so that equal angles are formed between them. Moving bushings are provided with possibility of fixing their position. Wind-driven power plant includes at least three detachable modules, wind metre and control unit. Detachable modules are fixed on metal frame installed on rotating platform. Control unit is connected to wind metre and rotating platform. Each detachable module includes wind wheel connected to the control unit and in-series connected to multiplying gear, electric generator and frequency converter. Detachable modules are fixed on metal frame so that parallel location of rotation axes of all wind wheels is provided.

EFFECT: increasing energy output, efficiency of wind use in wide range of wind loads; improving reliability and repairability of wind-driven power plant.

11 cl, 11 dwg

FIELD: power industry.

SUBSTANCE: invention offers the wind-driven power plant with a horizontal rotation axis. The wind-driven power plant contains the housing fitted with stabilizers designed as stiffening ribs. In the housing the horizontal shaft is placed, wind wheels are installed on the shaft in front of and behind the tower and have blades with increased working area, in medium and peripheral zones.

EFFECT: effect of air flow of medium and peripheral zones on the wind turbine behind the tower provides substantial increase of total power of the wind turbine.

2 cl, 8 dwg

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