windmotor

The windmotor 'Squid' addresses efficiency issues by using curved blades and a dome-shaped fairing formed by sprayed fluid/vapor to enhance airflow conversion and operation in low wind conditions, improving performance and reducing environmental impact.

WO2025229391A1PCT designated stage Publication Date: 2025-11-06GAMIY OLEG
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Patent Information

Application Number
PCT/IB2024/060811
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-11-01
Publication Date
2025-11-06

AI Technical Summary

Technical Problem

Existing windmotor designs suffer from reduced performance due to the misconception that wind flow velocity and energy remain constant before and after the rotor, leading to decreased airflow and increased pressure, which results in reduced efficiency and airflow around the rotor, especially in low wind conditions.

Method used

The windmotor 'Squid' features curved propeller blades with a dome-shaped fairing created by spraying working fluid and/or vapor, accelerating airflow and maintaining rotor speed through increased air density and pressure, allowing it to operate efficiently in low wind conditions.

Benefits of technology

The design enhances performance by increasing airflow energy conversion, reduces rotor diameter, simplifies installation, and allows operation in lower wind speeds while minimizing environmental impact and maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to wind energy devices for converting kinetic energy of air into usable energy. A windmotor comprises a nacelle (1) rotatable about a vertical axis, at least one propeller-type rotor (3) with a shaft (4) and at least one curved aerodynamic blade (5) mounted for rotation about a horizontal axis. The curved aerodynamic blade (5) is shaped to generate lift in the direction of rotation. The windmotor also contains at least one device (8) for spraying working fluid that is provided in at least one curved propeller blade (5) and / or mounted behind the rotor (3) in the airflow direction. At least one device (8) for spraying working fluid creates a dome-shaped fairing from sprayed fluid and air downstream of the rotor (3). The windmotor as a system also includes at least one source of working fluid (6) and at least one device for supplying working fluid (7). The design improves operation under low wind conditions.
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Description

[0001] WINDMOTOR

[0002] Description

[0003] Technical Field

[0004] The present invention relates to the field of the energy industry, in particular to wind energetics, specifically to devices for converting the kinetic energy of air mass movement in the atmosphere into electrical, mechanical, thermal or any other form of energy suitable for use.

[0005] Background Art

[0006] Known device: System and method for providing a controlled flow of fluid to or from a wind turbine blade surface (patent US20110103950A1 from 05.05.2011 , cl. FO3D7 / 04), which has a propeller-type rotor with a horizontal axis of rotation, wherein the rotor contains at least one blade, also the windmotor has at least one device for atomizing working fluid and / or working fluid vapor, also has at least one working fluid supply device made with the possibility of interacting with the at least one device for atomizing working fluid and / or working fluid vapor.

[0007] This device has several significant disadvantages.

[0008] The main disadvantage of this device is that the author mistakenly assumes that the speed and energy of the wind flow before the rotor and after the rotor are the same, but this is not the case. According to Betz's law the air flow passing through the rotor gives energy to the rotor and slows down approximately three times, thus the kinetic energy of the air flow after the rotor is three times lower than before the rotor. By increasing the density of the air, atomizing the liquid in the wind stream, after the rotor in the direction of the wind stream, if the kinetic energy of the air in the air stream is unchanged, the air velocity will decrease to almost zero. As a result, the air flow after the rotor will stop, which will lead, according to Bernoulli's law, to a deceleration of the incoming air flow and an increase in air pressure in front of the rotor, with the result that the incoming air flow will flow around the rotor on the outer edge of the rotor, tending to the zone with low air pressure. As a result, the amount of air flowing through the rotor will be drastically reduced, which will inevitably reduce the performance of the windmotor as a whole.

[0009] Also known device: Wind-Powered Direct Air Carbon Dioxide Capture for Ocean Sequestration (patent US20210362094A1 from 25.11.2021 , cl. B01 D63 / 06), which has a propeller-type rotor with a horizontal axis of rotation, wherein the rotor contains at least one blade, also the windmotor has at least one device for atomizing working fluid and / or working fluid vapor, also has at least one working fluid delivery device made with the possibility of interacting with the at least one device for spraying working fluid and / or working fluid vapor.

[0010] In view of the structural similarity and similar arrangement of the device for spraying working fluid and / or working fluid vapor, the present device has the same disadvantages as the previously mentioned device.

[0011] The device is closest to the claimed technical solution in terms of technical essence and resulting technical solution: Wind turbine and a wind park comprising such a wind turbine (International Application WO2023158301 A1 from 24.08.2023, Cl. F03D 9 / 28), containing a windmotor nacelle mounted on a support with the possibility of turning the nacelle around a vertical axis of rotation, at least one propeller-type rotor mounted in the nacelle with the possibility of rotating the rotor around a horizontal axis, the rotor has a shaft and at least one propeller blade connected at one end to the rotor shaft, made with the possibility of converting kinetic energy of the air flow into mechanical energy of rotor shaft rotation, at least one source of working fluid, at least one device for supplying working fluid, and at least one device for spraying working fluid and / or working fluid vapor, made with the possibility of interacting with each other.

[0012] This device has a number of significant disadvantages: A first disadvantage is that the present invention does not address the effect of the fluid sprayed in the airflow, behind the rotor, on the efficiency of converting the kinetic energy of the wind flow into other forms of energy, such as electrical energy.

[0013] A second disadvantage of the present invention is that the inventor mistakenly believes that the velocity and energy of the air flow before the rotor and after the rotor are the same, but this is not the case. According to Betz's law the air flow passing through the rotor gives energy to the rotor and slows down approximately three times, thus the kinetic energy of the air flow after the rotor is three times lower than before the rotor. By increasing the density of the air, sprayed liquid in the air flow, after the rotor in the direction of the air flow, if the kinetic energy of the air in the air flow is unchanged, the velocity of the air flow will decrease to almost zero. As a result, the air flow after the rotor will stop, which will lead, according to Bernoulli's law, to a deceleration of the incoming air flow and an increase in air pressure in front of the rotor, with the result that the incoming air flow will flow around the rotor on the outer edge of the rotor, tending to the zone with low air pressure. As a result, the amount of air flowing through the rotor will be drastically reduced, which will inevitably reduce the performance of the windmotor as a whole. A third disadvantage, is that given all of the above, the device described in the present invention will not achieve the expected effect of its use. The expected effect is that as much working fluid and air as possible interact with each other for as long as possible. Unfortunately, the fluid sprayed in the air flow will not be able to hold in the air for a long enough time, because of the oversaturation of the air with fluid and low kinetic energy of the fluid and air, as a consequence of which, as well as gravitational forces, the fluid will almost immediately fall out in the form of rain.

[0014] Summary of Invention

[0015] Technical Problem

[0016] The present invention is based on the task, to increase the performance of the windmotor and to eliminate the identified disadvantages of the prototype and analogs.

[0017] Solution to Problem

[0018] Windmotor “Squid” containing a windmotor nacelle mounted on a support with the possibility of turning the nacelle around a vertical axis of rotation, at least one propeller-type rotor mounted in the nacelle with the possibility of rotating the rotor around a horizontal axis, the rotor has a shaft and at least one propeller blade connected at one end to the rotor shaft, made with the possibility of converting kinetic energy of the air flow into mechanical energy of rotor shaft rotation, at least one source of working fluid, at least one device for supplying working fluid, and at least one device for spraying working fluid and / or working fluid vapor, made with the possibility of interacting with each other, wherein, according to the invention at least one propeller blade of at least one rotor has a curved, aerodynamic shape in the frontal projection of the propeller blade on a plane perpendicular to the rotor rotation axis, and is made with the possibility of creating a lifting force in the direction of rotation of the propeller blade, with the propeller blade having a curved, curvilinear profile in projection on the longitudinal plane in which the rotor rotation axis lies, at least one device for spraying working fluid and / or working fluid vapor is made in at least one curved propeller blade of the at least one rotor and / or mounted behind the rotor in the air flow direction, and is made with the possibility of forming a dome-shaped fairing of a mixture of working fluid and / or working fluid vapor and air, after the at least one rotor, in the air flow direction.

[0019] Advantageous Effects of Invention

[0020] The combination of features of the invention provides:

[0021] -A significant increase in windmotor performance by accelerating airflow around a domeshaped fairing created from working fluid splash and / or working fluid vapor and air. - Possibility to use windmotor in regions of the earth where wind speeds are lower than necessary for industrial power applications.

[0022] - The arrow-shaped design of the windmotor will allow it to self-al ign towards the air flow, which greatly simplifies the windmotor design.

[0023] - The design allows to reduce the rotor diameter, while maintaining the effective length of the rotor propeller blades, which gives the possibility to increase the rotor speed and / or increase the windmotor performance.

[0024] - The windmotor design reduces wind loads on all windmotor components.

[0025] - Making the windmotor safer for the environment, in particular birds, by illuminating the water mist or creating three-dimensional holographic images in the water mist, which can also be used commercially as a billboard.

[0026] - Possibility to use a windmotor as an irrigation system or an irrigation system as a windmotor in the agricultural sector.

[0027] - long distance transmission of fluids by saturating the air flow with fluid vapor and then condensing it at the point of reception.

[0028] - creation of a temporary fairing not associated with the windmotor from a mixture of working fluid and / or working fluid vapor and air, does not require additional production capacity and costs for structural materials for manufacturing the windmotor, and does not require additional time and personnel to manufacture a stationary fairing, which will simplify the design of the windmotor, reduce the weight of the windmotor, simplify the installation and maintenance of the windmotor.

[0029] A variant embodiment of the invention is possible, wherein the at least one propeller blade of the at least one rotor is made with the possibility of changing the angle of inclination with respect to the axis of rotation of the rotor.

[0030] This constructive implementation allows:

[0031] - keep the set rotor speed constant as the air flow speed changes.

[0032] - simplify installation and maintenance of the windmotor.

[0033] - regulate (reduce) the rotor area, which, in case of unfavorable weather conditions, will reduce the load on the windmotor as a whole and avoid destruction or damage to the windmotor.

[0034] There may also be a variant implementation, wherein the at least one propeller blade of the at least one rotor is made with the possibility of changing the angle of attack to the air flow.

[0035] This keeps the set rotor speed constant as the air flow speed changes. Advantageously, an embodiment of the invention is provided wherein the at least one device for spraying working fluid and / or working fluid vapor is made with the possibility of moving along the rotational axis of the rotor, and / or the at least one rotor is made with the possibility of moving along the rotational axis of the rotor.

[0036] Such an embodiment allows the position of the device for spraying working fluid and / or working fluid vapor to be adjusted by changing the air flow velocity and / or changing the angle of inclination of the rotor propeller blades relative to the rotational axis of the rotor. Also, in one possible variant embodiment, at least one device for atomizing the fluid is made at an angle to the air flow, with the possibility of generating a jet thrust.

[0037] Such an embodiment allows for a partial return of the energy expended in atomizing the working fluid and / or working fluid vapor in the air flow.

[0038] In yet another variant embodiment, the windmotor has at least one heating device made with the possibility of interacting with the working fluid, and / or with at least one device for spraying working fluid and / or working fluid vapor.

[0039] This structural design allows:

[0040] - saturate the air in the air flow with working fluid vapor, when the working fluid temperature increases, the temperature of the air, air flow increases, which affects the amount of working fluid vapor retained in the air and increases the relative humidity of the air up to 100%, which, in turn, increases the mass of working fluid in the volume of air and relative density of the air.

[0041] - use an injection pump without moving parts to supply working fluid to the air flow by means of overpressure of working fluid vapor heated by the working fluid, which will increase the reliability of the system as a whole.

[0042] - use a device for spraying working fluid and / or working fluid vapor as a de-icing device.

[0043] - increase the reaction rate, in case of adding reagents to the working fluid, which are able to interact with CO2 in the airflow, as the reaction rate doubles when the temperature increases by10°C.

[0044] An expedient embodiment is a variant embodiment having at least one heat pump made with the possibility of interacting with the working fluid and the air flow.

[0045] This allows the energy used to saturate the air with working fluid vapor to be reused.

[0046] Brief Description of Drawings

[0047] Fig.1 Schematically depicts a windmotor “Squid”, the propeller blades of which are equipped with devices 8 and 8.1 for spraying working fluid and / or working fluid vapor, and showing air flow lines, side view. Fig.2 Schematically depicts a windmotor “Squid” whose propeller blades are equipped with devices 8 and 8.1 for spraying working fluid and / or working fluid vapor, and showing air flow lines, front view.

[0048] Fig.3 Schematic representation of the windmotor “Squid”, a device for changing the angle of inclination of the propeller blade relative to the rotor axis of rotation, side view.

[0049] Fig.4 Schematic illustration of the windmotor “Squid”, local section A-A of the rotor propeller blade, front view is indicated.

[0050] Fig.5 Schematically depicts an aerodynamic profile of the cross-section A-A of the propeller blade.

[0051] Fig.6 Schematically depicts a windmotor “Squid”, a device for changing the angle of inclination of the propeller blade relative to the rotor axis of rotation in folded form, side view. Fig.7 Schematic representation of windmotor “Squid”, device for changing the angle of inclination of the propeller blade relative to the rotor axis of rotation in folded form, front view.

[0052] Fig.8 Schematic representation of a propeller blade and arrangement of devices for spraying working fluid and / or working fluid vapor, indicated by cross sections B-B and C- C, side view.

[0053] Fig.9 Schematic illustration of a B-B cross-section of a rotor propeller blade.

[0054] Fig.10 Schematic illustration of a C-C cross-section of a rotor propeller blade.

[0055] Fig.11 Schematic illustration of a rotor propeller blade in longitudinal section.

[0056] Fig.12 Schematically depicts a windmotor “Squid” equipped with device 8.2 for spraying working fluid and / or working fluid vapor, and showing air flow lines, side view.

[0057] Fig.13 Schematic representation of the windmotor “Squid” equipped with device 8.2 for spraying working fluid and / or working fluid vapor, and showing air flow lines, front view.

[0058] Figs.14-19 Schematic illustration of variants of the device for spraying working fluid and / or working fluid vapor 8.2.

[0059] Figs.20-23 Schematic illustration of variant designs of the windmotor “Squid” containing two or more rotors.

[0060] Figs. 24-27 Schematic illustration of variant embodiments of the windmotor “Squid” containing movable or fixed rotor and / or device 8.2 for spraying working fluid and / or working fluid vapor.

[0061] Fig.28 Schematically depicts a device 8.2 for spraying working fluid and / or working fluid vapor at an angle to the air flow with the possibility of generating a reactive thrust, rear view. Fig.29 Schematically depicts a windmotor “Squid”, which propeller blades are equipped with devices 8 and 8.1 spraying working fluid and / or working fluid vapor, as well as device 8.2 spraying working fluid and / or working fluid vapor made after the rotor 3, and also shown air flow lines, side view.

[0062] Fig.30 Schematically depicts a windmotor “Squid”, the propeller blades of which are equipped with devices 8 and 8.1 spraying working fluid and / or working fluid vapor, as well as device 8.2 spraying working fluid and / or working fluid vapor made after the rotor 3, and also shown air flow lines, front view.

[0063] Fig.31 Schematically depicts a windmotor “Squid” equipped with device 8.2 for spraying working fluid and / or working fluid vapor, a solar collector and a heat pump, and showing air flow lines, side view.

[0064] Description of Embodiments

[0065] Terms used.

[0066] The term “windmotor” should be understood as a machine that converts the kinetic energy of the wind into mechanical energy. The working body of the windmotor is a propellertype rotor, which takes the pressure of the air flow and converts it into mechanical energy of rotation of the windmotor rotor shaft. For a propeller-type windmotor with a horizontal axis of rotation, the working body is air, and the rotor is a shaft, the axis of rotation of which is made in a horizontal plane parallel to the air flow, and one or a plurality of wingshaped propeller blades fixed at one end to the shaft and equidistant from each other in a circle relative to the axis of rotation of the shaft.

[0067] The term “device for spraying working fluid and / or working fluid vapor” should be understood to mean an orifice, nozzle, injector, slotted nozzle, any mechanical device for spraying working fluid and / or fluid vapor, etc.

[0068] The term “working fluid” should be understood as any fluid that meets the technical requirements of the system, such as: sea water, ocean salt water or desalinated water or fresh water, etc.

[0069] The term “rotor” should be understood as the rotating part of a windmotor on which the organs that receive energy from the working body are located. The rotor is a shaft, the axis of rotation of which is made in a horizontal plane, and one or a plurality of wingshaped propeller blades, fixed at one end to the shaft and equidistant from each other along the circumference relative to the axis of rotation of the shaft.

[0070] For a propeller-type windmotor with a horizontal axis of rotation, the working body is air, and the rotor is a shaft, the axis of rotation of which is made in a horizontal plane, and one or a plurality of wing-shaped propeller blades fixed at one end to the shaft and equidistant from each other circumferentially with respect to the axis of rotation of the shaft. There is a limit to the kinetic energy taken from the air by a windmotor, as described in Betz's law. According to which it is impossible to take 100% of the energy from the air flow, because if we take all the energy from the air flow, the air flow movement after the windmotor rotor will be zero. In this case, the velocity of air flow through the rotor will also be zero, and hence the windmotor performance is zero, the rotor will simply stop, and the incoming wind flow on the rotor will circle the rotor on the outer edges of the propeller blades.

[0071] The idea of the invention is to provide a dome-shaped fairing not associated with a windmotor, comprising a mixture of air and working fluid and / or working fluid vapor, which deflects an incoming air flow along a curved surface of the dome-shaped fairing while accelerating the air flow along the surface of the dome. Due to the arrangement of curved rotor propeller blades in the accelerated flow along the curved surface of the fairing dome, while maintaining the length of the propeller blades, there is a possibility of converting more airflow energy, compared to a similar conventional windmotor with straight propeller blades, because the air flow velocity, along the dome, is higher than the initial air flow velocity in front of the rotor.

[0072] Variants of rotor devices with curved propeller blades and devices forming a domeshaped fairing are described below.

[0073] Description of advantageous variants of embodiments

[0074] Variant 1. The windmotor “Squid” contains a windmotor nacelle 1 (Figs. 1 , 2) mounted on a support 2, with the possibility of turning the nacelle 1 around a vertical axis of rotation, at least one propeller-type rotor 3 mounted in the nacelle with the possibility of turning the rotor 3 around a horizontal axis. In this case, the rotor 3 has a shaft 4 and at least one propeller blade 5 connected at one end to the shaft 4 of the rotor 3, made with the possibility of converting kinetic energy of the air flow into mechanical energy of rotation of the shaft 4 of the rotor 3, at least one source of working fluid 6, at least one device for supplying working fluid 7, and at least one device 8 for spraying working fluid and / or working fluid vapor, made with the possibility of interacting with each other. At least one propeller blade 5, at least one rotor 3 (Fig. 4), has a curved, aerodynamic shape in the frontal projection of the propeller blade 5 (Fig. 4) on a plane perpendicular to the axis of rotation of the rotor, indicated by the dashed line 9, and is made with the possibility of generating a lifting force PI in the direction of rotation of the propeller blade 5. Propeller blade 5 (Fig. 3) has, in projection to the longitudinal plane in which lies the axis of rotation of the rotor 3, a curved, curved profile. The propeller blade 5 can have any aerodynamic cross-sectional shape, such as a symmetrical profile, a flat profile or a non- symmetrical aerodynamic cross-sectional profile of the propeller blade 5 (Fig. 5), provided that it provides the creation of a lifting force P2 in the direction of rotation of the propeller blade 5. At least one device 8 for spraying working fluid and / or working fluid vapor is provided in at least one curved propeller blade 5 (Figs. 1 , 2) of at least one rotor 3. A device 8 for spraying working fluid and / or working fluid vapor is provided for forming a dome-shaped fairing 10, from a mixture of working fluid and / or working fluid vapor and air, after the at least one rotor 3, in the direction of the air flow. At least one device for spraying working fluid and / or working fluid vapor 8 (Figs. 1 , 2, 8-11 ) is made at the trailing edge of the aerodynamic profile of propeller blade 5 (Figs. 8, 9) and / or on any other surface of propeller blade 5 (Figs. 10, 11 ) in at least one curved propeller blade 5 of the at least one rotor 3, with the possibility of creating a dome-shaped fairing 10, (e.g., it may be parabolic or conical in shape) comprising a mixture of working fluid and / or working fluid vapor and air, and / or in the end face of the propeller blade 5, designated 8.1 (Fig. 11 ). The windmotor nacelle 1 may also be equipped with at least one guide plane (which may be shaped like a squid fin) forming a vane with the nacelle body, which sets the rotational axis of the windmotor rotor parallel to the air flow. The rotational energy of the shaft 4 of the rotor 3 resulting from the interaction of air flow and propeller blades 5 of the rotor 3 can be converted into electrical energy by transmitting the rotational motion of the shaft 4 of the rotor 3 to an electric generator (not shown in the drawings) or thermal energy, or used as a drive for a pump, mill, sawmill, etc.

[0075] The windmotor “Squid” can be installed in the sea or ocean and have a floating support or installed on the bottom or along the shoreline, or near lakes or rivers, allowing them to be used as a source of working fluid. It is also possible to use glacial melt water or artesian water as working fluid.

[0076] Variant 2. Windmotor “Squid” (Figs. 12, 13) is characterized in the first above described variant that the device for spraying working fluid and / or working fluid vapor is made as a separate device installed after at least one device rotor 3 in the direction of air flow and is designated by the position 8.2 (Figs. 12, 13). The device 8.2 (Figs. 12,13) creates a dome-shaped fairing 10 comprising a mixture of working fluid and / or working fluid vapor and air, after the at least one rotor, along the air flow direction. The device for spraying working fluid 8.2 may be designed as a slotted nozzle (Figs. 14-17) or have the shape of a “spruce” consisting of a plurality of pipes having a plurality of holes for the outlet of working fluid and / or working fluid vapor, or have any other design allowing the creation of a fairing of a mixture of working fluid and / or working fluid vapor and air, after at least one rotor, in the direction of air flow.

[0077] Also, the device 8.2 for spraying working fluid and / or working fluid vapor, may be, fixed relative to the at least one rotor 3 of the windmotor with the possibility of rotation relative to the nacelle 1 or fixed relative to the nacelle 1 or mounted with the possibility of independent rotation, relative to the rotor 3 and the nacelle 1 .

[0078] Variant 3. The windmotor “Squid” simultaneously includes both of the preceding embodiments, variant 1 and variant 2 (Figs. 25, 26).

[0079] A variant embodiment is possible, wherein the windmotor “Squid” has at least one propeller blade 5 (Fig. 3), at least one rotor 3, made with the possibility of changing the angle P of inclination with respect to the axis of rotation of the rotor 3. An example embodiment of this device is demonstrated in (Fig. 3). In said variant, the slider 11 (Fig. 3) is articulated with the connecting rod 12 which, in turn, is articulated with the propeller blade 5. The slider 11 may also be coupled to the rotational axis of the rotor 3 by means of a screw pair, providing controlled rectilinear translational movement of the slider 11 along the rotational axis of the rotor 3. In this way, a change in the angle p of inclination of the propeller blade 5 relative to the rotational axis of the rotor 3 is provided. The dotted line shows the position of the slider 11 (Fig. 3) of the connecting rod 12 and the propeller blade 5 with a modified angle p of inclination relative to the axis of rotation of the rotor 3. Figs. 6, 7 show the rotor 3 with the minimum angle p of inclination of the propeller blades to the axis of rotation of the rotor 3, in the folded position.

[0080] A variant embodiment is possible, wherein the windmotor “Squid” includes at least one propeller blade 5 (Fig. 3) of at least one rotor 3 made with the possibility of changing the angle of attack to the air flow.

[0081] Another variant embodiment is possible, wherein the windmotor “Squid” at least one device 8.2 for spraying working fluid and / or working fluid vapor is made with the possibility of movement along the rotational axis of the rotor 3 (Figs. 24, 25), and / or at least one rotor 3 (Figs. 21 , 22, 25, 26) is made with the possibility of movement along the rotational axis of the rotor 3.

[0082] A variant embodiment is also possible, wherein the windmotor “Squid”, at least one device 8, 8.1 , 8.2 (Fig. 28) for spraying working fluid and / or working fluid vapor is made at an angle to the air flow with the possibility of creating a reactive thrust. Another possible embodiment, wherein the windmotor “Squid” has at least one heating device 13 (Figs. 29, 30), made with the possibility of interaction with the working fluid.

[0083] The heating device may be electric heating devices, solar collectors 13.1 (Fig.31 ), thermal underground sources, etc.

[0084] It is also possible variant, in which the windmotor “Squid” has at least one heat pump 14 (Fig. 31 ) made with the possibility of interaction with the working fluid and wind flow.

[0085] In any of the above-described variants of the windmotor “Squid”, the windmotor or its components may be made of any materials that meet the technical parameters of the selected windmotor design, which may be, for example: metals, reinforced and unreinforced polymeric materials or composites, rubber-fabric materials, wood, and the like.

[0086] Principle of operation

[0087] The most expedient variant of the windmotor “Squid” is the third variant (Figs. 29, 30), so the principle of operation will be further shown on it.

[0088] In a first step, when the rotor 3 begins to rotate under the influence of the impinging air flow, a portion of the kinetic energy of the air flow is converted into rotational motion of the rotor 3. As a consequence, the air flow velocity after the rotor 3 is reduced while keeping the mass and density of the air upstream and downstream of the rotor 3 constant. According to Betz's law for an ideal rotor 3, the amount of power extracted cannot exceed 59.3%, so the amount of air flow energy after the rotor will be 40.7%, which is directly proportional to the airflow velocity. With the device for spraying working fluid and / or working fluid vapor 8, 8.1 , 8.2 (Figs. 29, 30), the working fluid is atomized in the air flow after the rotor 3 which leads to a change in density and mass in the air volume of the air flow with unchanged kinetic energy of the air flow. For example, if the velocity of the working fluid flowing out of the device for spraying working fluid 8 is equal to the rotational speed of the rotor 3, then the relative velocity of the working fluid relative to the air flow is 0, and the velocity vector of working fluid from the device for spraying working fluid 8.2 is directed perpendicular to the velocity vector of air flow, then the velocity of working fluid in projection to the velocity of air flow is also equal to zero. Thus, as the density and mass in the air flow volume increase, the velocity of the air flow after the rotor 3 will decrease while maintaining the initial kinetic energy. As the air moves, and the working fluid droplets and / or working fluid vapor moved by it, the air will do work to move the working fluid, and will expend kinetic energy to do this work, resulting in a decrease in air flow velocity after the rotor 3. As the velocity of air flow after rotor 3 decreases, the working fluid flow rate will decrease and will be proportional to the velocity of air flow after rotor 3, it will be a relatively small volume of working fluid aimed at maintaining a given air density under certain external climatic conditions.

[0089] In this way, a dome-shaped fairing 10 comprising a mixture of air and working fluid and / or working fluid vapor is formed. A zone of increased air pressure will be formed at the boundary of the dome-shaped fairing 10. Also, the working fluid and / or working fluid vapor sprayed by the device 8 will create an area 15 of increased air flow pressure behind the propeller blade 5 of the rotor 3 increasing the working surface area of the propeller blade 5. The zone 15 created by the propeller blade 5 and the dome 10 overlap in the zone 16 (Fig. 30). The dome-shaped fairing 10 and the propeller blade 5 and the pressurized zone 15, form a corridor tapering along the dome-shaped fairing 10 into which the surging air flow is redirected. Also, the spraying device 8.1 creates a corridor, in the form of a pipe, at the outlet of the air flow from the windmotor. According to Bernoulli's law, as the crosssection of the pipeline decreases, the flow velocity increases. The curved propeller blades 5 of the rotor 3 are arranged in an accelerated air flow. The said accelerated air flow, whose speed is higher than the atmospheric air flow, interacts with the propeller blades 5 of the rotor 3, which makes it possible to increase the performance of the windmotor (compared to a classical windmotor having the same rotor diameter) and / or to use this windmotor “Squid” in conditions where the atmospheric air flow is not suitable for classical windmotor.

Claims

CLAIMS1. Windmotor “Squid” containing a windmotor nacelle mounted on a support with the possibility of rotating the nacelle around a vertical axis of rotation, at least one propellertype rotor mounted in the nacelle with the possibility of rotating the rotor around a horizontal axis, the rotor has a shaft and at least one propeller blade connected at one end to the rotor shaft, made with the possibility of converting kinetic energy of air flow into mechanical energy of rotation of the rotor shaft, at least one source of working fluid, at least one device for supplying working fluid, and at least one device for spraying working fluid and / or working fluid vapor, made with the possibility of interacting with each other, characterized in that at least one propeller blade of at least one rotor has a curved, aerodynamic shape in the frontal projection of the propeller blade on a plane perpendicular to the rotor rotation axis, and is made with the possibility of creating a lifting force in the direction of rotation of the propeller blade, with the propeller blade having a curved, curvilinear profile in projection on the longitudinal plane in which the rotor rotation axis lies, at least one device for spraying working fluid and / or working fluid vapor is made in at least one curved propeller blade of the at least one rotor and / or mounted behind the rotor in the air flow direction, and is made with the possibility of forming a dome-shaped fairing of a mixture of working fluid and / or working fluid vapor and air, after the at least one rotor, in the air flow direction.

2. The windmotor according to claim 1 , characterized in that the at least one propeller blade of the at least one rotor is made with the possibility of changing the angle of inclination with respect to the rotational axis of the rotor.

3. The windmotor according to claim 1 , characterized in that the at least one propeller blade of the at least one rotor is made with the possibility of changing the angle of attack to the air flow.

4. The windmotor according to claim 1 , characterized in that the at least one device for spraying the working fluid and / or the working fluid vapor is made with possibility of movement along the rotational axis of the rotor, and / or the at least one rotor is made with possibility of movement along the rotational axis of the rotor.

5. The windmotor according to claim 1 , characterized in that the at least one device for spraying working fluid and / or working fluid vapor is made at an angle to the air flow, with the possibility of generating a reactive thrust.

6. The windmotor according to claim 1 , characterized in that it has at least one heating device made with the possibility of interacting with the working fluid and / or with at least one device for spraying the working fluid and / or working fluid vapor.

7. The windmotor according to claim 6, characterized in that it has at least one heat pump made with the possibility of interacting with the working fluid and the air flow.

Citation Information

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