Wind motor

FIELD: energy.

SUBSTANCE: invention relates to wind power engineering, in particular to wind motors with horizontal rotation axis of the wind wheel. Wind motor includes a horizontal shaft, multiple-blade wind wheel fixed on it, having internal and outer shells, between which there are main blades of the first level, flat blades of the second level are located on the outer shell in the amount that is equal to the length of the outer shell in meters, connected with the stiffness ribs by means of hinges to change the angle of attack of air flow depending on wind velocity, initial position of flat blades of the second level, fixed by means of hinged plates, is provided by higher tension springs and pin stroke limiters of the stiffness ribs.

EFFECT: invention is aimed at improvement of wind energy use coefficient and prevention of accidents.

1 cl, 6 dwg

 



 

Same patents:

FIELD: power industry.

SUBSTANCE: group of inventions relates to a device for generation of energy from fluid medium and to a blade used in it, and can be used in particular in wind generators. A blade for the device for energy generation from fluid medium includes a guide surface inside which fluid medium shall move to rotate the blade about rotation axis Xo that together with axes Yo, Zo forms an orthogonal system of coordinates Xo, Yo, Zo. The above blade is restricted with front edge (4) and rear edge (5), constricted between front edge (4) and rear edge (5) and passes along midline (10). Projection of midline (10) onto plane Xo, Yo has the first curvature. Plane Xo, Yo is formed with a possibility of containing midline (10) at front edge (4).

EFFECT: group of inventions is aimed at improvement of output power of an energy generation device.

15 cl, 8 dwg

FIELD: power industry.

SUBSTANCE: invention relates to electrical engineering, and namely to wind power plants and wind turbines. The turbine for a wind engine contains the top and bottom blades. Between blades at different distances the wings with formation of air ducts between the top and bottom blades are fixed. The forward part of the wing, located closer to the centre, is guiding one, and back higher part of the wing, located further from the centre, is an air inlet. Each wing includes the top and bottom wings. The top wing is designed with a possibility of change of distance and an angle with reference to the bottom wing.

EFFECT: increase of the working area of turbine with design simplification at the same time.

2 cl, 4 dwg

FIELD: chemistry.

SUBSTANCE: invention relates to structural adhesive compositions and more specifically to 2K structural adhesive compositions. Adhesive compositions include (a) a first component containing (i) epoxy adduct which is a reaction product of reactants comprising a first epoxy compound, a polyol and an anhydride and/or a diacid; and (ii) a second epoxy compound; (b) a second component which reacts with the first component, which contains an amino compound. The amino compound captures a polyfunctional polyether amine based on polypropylene oxide. Said adhesives can be used to join substrate materials, such as two halves of the shell of wind turbine blades.

EFFECT: invention enables to obtain adhesive compositions with a long service life and which provide sufficient bonding strength.

12 cl, 1 dwg, 3 tbl, 8 ex

Wind engine // 2552017

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

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

Wind wheel // 2549008

FIELD: machine building.

SUBSTANCE: wind wheel comprising a hub and blades from a bent resilient strip connected to the hub is proposed. Every blade is made by single-sided joint of the opposite ends of a bent resilient strip. Additionally its blades are set with the designed incidence angle at their end and at the units of their connection to the hub.

EFFECT: use of the invention will allow for the increase of wind turbine efficiency.

2 dwg

Windwheel // 2542161

FIELD: power industry.

SUBSTANCE: invention refers to wind power industry, particularly to windwheels of wind power and wind electric power plants with horizontal rotation axis, designed mainly for operation in segmented-type power generators. The effect is achieved by equipping the main blade of windwheel with a joint where L-shaped arm is attached, with tensioning gear with a cable fixed at one side and rocker system at the other side. Sail fins are made in the form of band loops with band ends attached to the rockers, and the loop put on the cable.

EFFECT: simplified and more cost-effective structure, twist enabled.

4 dwg

FIELD: power engineering.

SUBSTANCE: inventions relate to wind-power engineering and can be used for conversion of wind power. The rotor blade (200) consists of a body (206) with aerodynamic structure (204) with a pressure side (204.2) and suction side (204.1), base on the first end of the body (206) and tip (100) on the second end of the body, besides, for connection with the tip (100) the bode (206) has the second components of the connecting mechanism, which contain mating with the first guides (110) of the tip (100) the second guides (210), and also the second blocking devices (220) interacting with the first blocking devices (120) of the tip (100). The tip (100) of the rotor blade (200) is designed as an independent detail, connected with the blade (200), and has the first connecting surface (102), facing towards the connected blade. To make the connection with the blade (200) on the connecting surface (102) the first guides (110) with the direction (FR) of input and first blocking devices (120) are provisioned as the first components of the connecting mechanism for fastening the tip (100) on the blade (200).

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.

EFFECT: use of strap elements increases produceability.

1 dwg

FIELD: power engineering.

SUBSTANCE: wind wheel of the segment type electric generator, containing a hub, blades with the stringers designed as a sailing fin assembly, according to the invention, has fastening of stringers to the rim connected to the hub by means of spokes which are designed as flat-topped brackets on vertical sides of which the pairwise cuts are made which contact to the rim. Flat-topped brackets are connected to the rim fasteners, and stringers are fixed on horizontal shelves of flat-topped brackets.

EFFECT: possibility of use of stringers of the blade both as structural elements and magnetic conductors of the segment generator that provides simplification and reduction in cost of the design due to the use of the sailing fin assembly.

5 dwg

Wind engine // 2552017

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

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

FIELD: machine building.

SUBSTANCE: rotor device using the Magnus effect contains at least one rotor, rotor rotating ring kinematically linked with the rotor and secured on the device casing, and shaft secured in the device casing and kinematically linked with the drive and electric generator. The rotor is secured on the shaft, and at place of engagement with the rotors rotating ring has significantly lesser diameter then the diameter of the rest rotor part; and during rotation around axis of the device shaft per one cycle it makes significantly more rotations around its axis then the rotor makes without the diameter decreasing in the place of engagement with the rotors rotation ring.

EFFECT: increased movement speed of the rotor surface and hence during its flow-around by the flow to increasing of the Magnus effect action on the rotor and to increased device power.

2 dwg

Wind wheel // 2549008

FIELD: machine building.

SUBSTANCE: wind wheel comprising a hub and blades from a bent resilient strip connected to the hub is proposed. Every blade is made by single-sided joint of the opposite ends of a bent resilient strip. Additionally its blades are set with the designed incidence angle at their end and at the units of their connection to the hub.

EFFECT: use of the invention will allow for the increase of wind turbine efficiency.

2 dwg

FIELD: power industry.

SUBSTANCE: wind-driven power plant has hollow blades fixed on its hub, which are made in the form of rotation bodies with longitudinal slots made in their walls, in which there arranged are convergent curved channels with tangential slots at the outlet, which are directed at a tangent to the outer surface of the blades. Air supply to tangential slots on the blades is provided by means of a compressor. The compressor includes an impeller driven from a device with an adjustable rotation speed, which is fixed on the shaft cantilever. At rotation of the compressor impeller, compressed air is supplied to tangential slots and ejected from them in the form of near-wall high-speed jets. As a result, a ring-shaped vortex is formed around the blades, at interaction of which a torque moment is created with an incident air flow on a windwheel.

EFFECT: increasing wind energy use coefficient and decreasing aerodynamic noise at operation of a wind-driven power plant in a wide range of wind speed variation at constant rotation speed of a windwheel and an electric generator.

2 cl, 1 dwg

FIELD: electricity.

SUBSTANCE: electric drives system of vehicle includes at least one electric generator, accumulator battery, charger and inverter interconnected electrically, electric motor coupled electrically to the accumulator battery and kinematically to vehicle transporter. The electric generator is of flow type; it includes a hollow rotor where vanes of multistaged turbine and stator are installed. The drive system is equipped with generated power converter, speed sensor, battery charge level sensor and commutator switch, at that the converter is coupled electrically to the electric generator and commutator switch, the commutator is coupled to speed sensor, battery charge level sensor, charger and electric motor, the speed sensor is coupled to vehicle speed measurement tool, the battery charge level sensor is coupled to accumulator battery or charger.

EFFECT: improved efficiency of the power supply system for vehicle electric drive with potential generation of counterflow energy of the medium where the vehicle moves.

8 cl, 4 dwg

FIELD: power industry.

SUBSTANCE: invention refers to wind power engineering. An energy generation method consists in the fact that energy generation is performed due to the rotation of working blades by means of wind accelerated by a structure made in the form of a converging-diverging nozzle in the upper part and representing a plane in the lower part, and due to solar batteries, as well as solar beams that fall on the battery, and due to their reflection from the inner plane of the converging-diverging nozzle. Energy generation can occur both due to the solar beams and wind flows; with that, a wind flow directs the station to capture it, and if there is no wind flow, the station is directed to capture solar beams.

EFFECT: invention is aimed at an improvement of the electric power station efficiency.

3 cl, 12 dwg

FIELD: power industry.

SUBSTANCE: invention relates to wind industry and can be used for electric power supply to domestic and industrial energy consumers. A wind-power unit with a wind turbine orientation and power limitation system, which has a support with a pin gear and a vertical axle with a wind-power unit head put on it, a device responding to wind direction, which is put on a hollow vertical axle in the head of the wind-power unit so that it can be turned at least through 90, rigidly attached to a side shovel, a vertical shaft passing through the hollow vertical axle in the head of the wind-power unit and having a drive gear installed on the lower end and kinematically connected to the pin gear, as well as a power-assisted counteracting mechanisms with force application points between the head of the wind-power unit and the side shovel; with that, as a device reacting to wind direction there used is a screen located in wind direction in front of an impeller put on the upper end of the vertical shaft.

EFFECT: invention is aimed at improvement of serviceability and reliability of a wind-power unit.

3 dwg

Wind turbine // 2531478

FIELD: power engineering.

SUBSTANCE: this invention relates to the field of wind power engineering and may be used for production of electric energy. A wind turbine comprises a set of bent blades fixed on a central rotary hub and a rim surrounding the ends of the blades and fixed to them, at the same time the rim is made as capable of rotation together with the specified hub and the specified blades. Each blade has fixed inclination relative to the central axis of hub rotation. The angle of inclination of each blade in the hub end is determined by the result of the ratio produced, if the radius of the hub is divided by the turbine radius and is multiplied by the angle of inclination at the end, at the same time the blade comprises a complex curve, which causes deviation of wind dashing against the blade as the wind enters the area of the blade. The turbine additionally comprises a device, which controls speed of turbine rotation, so that it is possible to control angle of blades inclination relative to wind direction.

EFFECT: use of the invention provides for increased efficiency of wind energy use.

18 cl, 28 dwg

FIELD: power engineering.

SUBSTANCE: rails may be locked by means of a stop element, at the same time the stop element is located in a transition area to an elevator. The invention relates, in particular, to a wind power plant equipped with a blocking device, comprising a blocking mechanism for receiving the first blocking element and the second blocking element. The first blocking element is connected to the elevator, and the second blocking element is connected to the stop element, and the blocking mechanism is made to release one of two blocking elements by means of blocking of accordingly another blocking element relative to the blocking device. The invention also relates to a blocking device, an elevator and a wind power plant.

EFFECT: increased safety on a work site of a wind power plant.

19 cl, 6 dwg

FIELD: wind-power engineering, electrical engineering, aviation, and the like.

SUBSTANCE: screw-shaped part of blade has transversal flexure, and screw-forming part of support is disposed on transversal flexure line; bearing part has base in the form of trapezoidal profile and turnbuckles.

EFFECT: enhanced efficiency.

1 cl

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