ENERGY GENERATION DEVICE

Description

[0001] The present invention relates to an energy generation device for generating energy from a flowing fluid, in particular from a wind stream and / or a water stream. The present invention also relates to a rotating body for an energy generation device.

[0002] Energy generation plants come in many forms and variations, based on different fundamental principles. For example, wind turbines are known in various forms, generating energy from flowing wind in the form of electrical power or as propulsion. Similarly, hydroelectric power plants also come in various forms, generating energy from flowing water, such as river or ocean currents.

[0003] Such regenerative energy systems, which generate energy from renewable energy sources, are used in many different places and for various applications.

[0004] For example, large power plants are known for large-scale industrial energy production, as are small power plants that are used, for example, to charge mobile energy storage devices or to generate light, etc.

[0005] Ships and boats are a particularly suitable location for such energy generation systems. Naturally, it is often windy on these vessels, and the air is warmed in many places by solar radiation.

[0006] It may be necessary to generate energy on sailboats, and small wind turbines are also known for such purposes.

[0007] A problem with known small wind turbines is that they are often difficult to transport. Furthermore, every wind turbine loses its ability to generate energy during periods of calm winds.

[0008] For this application, a multifunctional system would be desirable, for example for outdoor activities or marine applications, that could utilize not only wind power but also other fluid flows, such as water flow. In other words, the broadest possible range of applications is desirable.

[0009] The German Patent and Trade Mark Office has identified the following prior art in the priority application: DE 10 2013 205 781 A1 and FR 2 968 726 A1. Document DE 10 2013 205 781 A1 relates to a wind turbine that can be set in motion by the up-and-down movement of a lift body and thereby transfers energy to a generator in a ground-based part of the turbine for the generation of electrical energy. Document FR 2 968 726 A1 relates to a wind turbine with inflatable blades. Document US 2016 / 169197 A1 shows another example of a wind turbine.

[0010] The object of the present invention is therefore to address one of the aforementioned problems, to improve the general state of the art, or to provide an alternative to what is known. In particular, a solution for an energy generation plant is to be provided that is not only suitable for a wide range of applications but is also transportable and easy to handle.

[0011] According to the invention, an energy generation device according to claim 1 is thus proposed, namely an energy generation device for generating energy from a flowing fluid.

[0012] An energy generation device is proposed that converts stored potential energy from a flowing fluid into another form of energy, such as electrical energy, motive energy, or propulsive force. The fluid can be gaseous or liquid. Preferably, energy is derived from wind power and additionally or alternatively from a water stream. Preferably, energy is generated in the form of electrical energy, but it is also possible to generate propulsive energy, for example, to propel a ship or boat.

[0013] Furthermore, it is proposed that the energy generating device comprises at least one body of revolution, wherein the body of revolution extends along an axis of rotation between a first point and a second point and the body of revolution is configured to rotate about the axis of rotation.

[0014] It is therefore proposed that the solid of revolution extends spatially along an axis of rotation, with the first and second points being considered distinct points in space. The solid of revolution thus extends along a path and is rotatably mounted. For example, the solid of revolution is designed as an elongated cylinder configured for rotation about the axis of rotation.

[0015] The axis of rotation can be oriented in different ways; for example, it can be horizontal or vertical, and this may vary depending on the location where the power generation device is used. For instance, a stationary power generation device might have a vertical axis of rotation. In another example, a device operating in flight or on water might have a horizontal axis.

[0016] In a preferred embodiment, the rotating body has bearing means for rotating the rotating body about the axis of rotation. For example, the rotating body can be mounted on a shaft via plain bearings or ball bearings for rotating the rotating body about the axis of rotation.

[0017] In a particularly preferred embodiment, the shaft is designed as a stationary shaft or as a rotating shaft and is mechanically connected to the rotating body, for example rigidly or via a bearing means.

[0018] Furthermore, it is proposed that the body of revolution is formed from at least one first, one second and one third rotational segment, wherein the rotational segments are connected to each other and are arranged along the axis of rotation, and form a region at least partially surrounded by fluid.

[0019] It is therefore proposed that the body of revolution is formed from at least three or more, or a multitude of, segments of revolution.

[0020] The rotating segments are connected to one another, preferably directly adjacent to each other. For example, the rotating segments can be mechanically connected to one another via a separating barrier, so that each or several rotating segments form a closable and gas-tight air or gas chamber that retains the gas trapped within the rotating segments. The rotating segments are preferably bonded or welded together. When other materials are used, the connection between the segments is designed to be stable.

[0021] The rotating segments are arranged along the axis of rotation, for example, rotationally symmetrically next to each other, and mechanically connected so that the multitude of rotating segments form the shape of the body of revolution, which can be cylindrical, for example. Adhesive bonding or welding is the preferred method of mechanical connection.

[0022] With this arrangement, the rotating segments form a region that is at least partially surrounded by fluid flow.

[0023] The fluid flow area is a region on a surface of the rotating body or on the surface of the rotating segments where the fluid comes into contact with the surface and flows along it. In other words, it is a region where the fluid hits or comes into contact with the surface of the rotating segments, resulting in a complete or partial flow around the cylindrical rotating body.

[0024] Furthermore, it is proposed that the second rotational segment be arranged between the first and third rotational segments and that the second rotational segment have a different diameter than the first and third rotational segments. It is therefore proposed that at least the second rotational segment have a different diameter than the first or third rotational elements that are adjacent to the second rotational segment.

[0025] A special form of the body of revolution is therefore proposed, which results from a change in the adjacently arranged rotation segments due to different diameters along the axis of rotation of the rotation segments.

[0026] It was recognized that the proposed special shape imparts some advantageous properties to the body of revolution, namely, for example, that aerodynamic reefing of the body of revolution is possible.

[0027] Reffen refers to the process of reducing the surface area of ​​the rotating body in order to offer a smaller surface area to the flowing fluid.

[0028] Furthermore, it was recognized that the shape or the different diameters of the rotating segments can lead to improved motion stability and create a larger flow area, thus increasing the energy yield.

[0029] Furthermore, a generator device mechanically connected to the rotating body is proposed, wherein the generator device is configured to generate energy obtained from the rotation of the rotating body, for example electrical energy, thermal energy or drive energy.

[0030] It is therefore proposed to use a generator for energy production that is connected to the rotating body. The generator can, for example, have a rotating part and a stationary part, known as the rotor and stator.

[0031] The mechanical connection of the generator can be achieved in different ways, for example via a direct connection with the rotating body, by mechanically coupling the rotating body with the rotor of the generator, or by the rotating body forming the rotor.

[0032] In a particularly preferred embodiment, the generator is designed to produce electrical energy, for example as a permanent magnet AC generator, which preferably generates electrical energy in the form of power per unit of time in a power range of 1 W to 50 kW. When the energy generation device is used as a large wind turbine, this power range is correspondingly larger.

[0033] In a further particularly preferred embodiment, the generator is designed as an internal rotor or external rotor and has an electrical connection means to establish an electrical connection with an electrical consumer or an electrical storage device and to consume or store the generated energy.

[0034] The proposed concept is, in principle, scalable to higher power ranges, taking physical limitations into account. In a preferred embodiment, the concept is proposed as a small generator for powering electrical devices or charging electrical storage devices such as mobile phones, radios, LED lights, power banks, and kettles. The range of applications is therefore extensive.

[0035] The rotational segments are preferably cylindrical or ring-shaped, i.e., like a disk with a disk thickness or like a hollow cylinder.

[0036] The rotating segments preferably enclose a volume within their interior, which is filled, for example, with air or helium, and thus consist of cavities. The rotating segments can also be made of elastically deformable materials, such as form-elastic polymers or origami-like folded fabrics. The rotating segments can be self-supporting or supported by a structural element, such as a gas-filled foil cylinder.

[0037] In a particularly preferred embodiment, the rotating segments are formed from at least one tear-resistant and thin-film plastic sheet or plastic layer in order to provide a particularly lightweight rotating body.

[0038] In another embodiment, the rotating segments can be fully or partially gas-conductingly connected to each other, so that accordingly all rotating segments are connected to each other or only some are connected to each other.

[0039] Preferably, the first segment of revolution has a first diameter, the second segment a second diameter, and the third segment a third diameter, wherein the first diameter is larger than the second diameter and the third diameter is equal to the first diameter, particularly to form a cylindrical, layered shape of the body of revolution. Such a shape of the body of revolution, in which the diameter of adjacent segments of revolution alternates repeatedly, is called a layered shape or, in the case of three segments of revolution, a dumbbell shape. Along the path between the first and second points of the body of revolution, a wave-like shape is thus created, exhibiting peaks and troughs, resulting from the changing diameters of the segments of revolution, which are, for example, ring-shaped or disc-shaped.This shape allows for particularly simple and aerodynamic reefing, as the larger diameter rotating segments rest on smaller diameter rotating segments, thus reducing folds in the rotating segments that are detrimental to an aerodynamic shape. Furthermore, the alternating diameter profile ensures that the energy generation device remains more stable in the fluid than, for example, a simple cylinder without this alternating diameter profile. This is due to the unique pie-shaped design.

[0040] Additionally or alternatively, it is proposed that the first diameter be smaller than the second diameter and the third diameter equal to the first diameter, particularly to form an elliptical or flat diamond shape of the body of revolution. Such a shape of the body of revolution, in which the diameter decreases outwards from a center of the body of revolution, is called an elliptical or diamond shape, the elliptical shape also being referred to as a spherical or round shape and the diamond shape as a triangular shape. Along the path between the first and second points of the body of revolution, an elliptical or flat diamond shape is thus formed, depending on the number of revolution segments. The diameter of the body of revolution therefore initially increases along the path between the first and second points, namely until the second revolution segment is reached, and then decreases again.

[0041] Additionally or alternatively, it is proposed that the first diameter be larger than the second diameter, and the second diameter be larger than the third diameter, particularly to create a conical shape for the body of revolution. The diameter of the body of revolution thus increases or decreases in one direction, depending on its orientation. The conical shape can also be interpreted as a trapezoidal shape. This conical shape ensures that the center of gravity of the body of revolution is located at a predetermined point. For example, in a stationary operation of the energy generation device, such a center of gravity can be set close to the ground, thus providing the device with greater stability.

[0042] It is understood in all previously described cases that the shape of the body of revolution depends on the number of revolution elements and that mixed shapes are also possible.

[0043] Additionally or alternatively, it is proposed that the rotating segments be designed in an annular shape, particularly to create a hollow body of revolution and provide an open barrel shape. The annular rotating segments are attached to a supporting structure for mounting the body of revolution to a rotating axis. Thus, it is proposed that the rotating segments be designed in an annular shape to save weight and simplify transport. It is understood that a supporting structure made of load-bearing elements is provided to support the rotating body.

[0044] In a particularly preferred embodiment, the body of revolution or the segments of revolution are designed such that the body of revolution has a substantially elongated cylindrical shape.

[0045] Preferably, it is proposed that the body of revolution be formed from more than five segments of revolution, preferably from more than 10 segments of revolution, wherein the directly adjacent segments of revolution each have a different diameter, in order to form, in particular, one of the previously described shapes of the body of revolution. Thus, a preferred embodiment proposes the use of a plurality of interconnected segments of revolution, wherein the directly adjacent segments of revolution each have a different diameter. For example, nine segments of revolution can be used, wherein the first, third, fifth, seventh, and ninth segments of revolution have the same first diameter, and the second, fourth, sixth, and eighth segments of revolution have the same second diameter, which is smaller than the first diameter.The alternating changes in diameter of the cylindrical rotating segments create a tree cake shape.

[0046] Preferably, it is proposed that the rotating body be designed to be self-starting. Self-starting is understood to mean that the rotating body transitions from a standstill to a state of rotation without any additional drive or force being applied, the state of rotation being caused by the fluid flowing along the fluid-enclosed area.

[0047] In a preferred embodiment, at least one of the rotating segments has at least two starting elements opposite each other with respect to the axis of rotation for increasing fluid resistance in the fluid-flowed area. It is therefore proposed that at least one of the rotating segments has at least two means that increase the fluid resistance of the rotating body. Fluid resistance can also be referred to as flow resistance.

[0048] In a further embodiment, the starting element has a fluid-facing side and a fluid-distant side, the fluid-facing side exhibiting higher fluid resistance than the fluid-distant side. It is therefore proposed to design the starting means in such a way that self-starting is possible even when the fluid flows uniformly along the fluid-enclosed area on both the top and bottom surfaces of the rotating body.

[0049] For example, the starting elements can be scoop-shaped or wing-shaped, and have an approximately concave fluid-facing side and an approximately convex fluid-away side, and can be designed as wings, tabs or other devices.

[0050] In a particularly preferred embodiment, at least one rotating segment has a plurality of starting elements arranged around the entire circumference of the at least one rotating segment, for example, twelve or more starting elements. Having a plurality of starting elements ensures that the shape of the rotating segments is essentially circular and, in particular, allows for more efficient use of the Magnus effect. However, several rotating segments or all rotating segments can also have a plurality of starting elements.

[0051] Preferably, it is proposed that the body of revolution be designed to be reefable.

[0052] In a preferred embodiment, this is achieved by making at least one of the rotating segments gas-filled and maintaining a higher pressure than ambient pressure in an internal region of the at least one gas-filled rotating element when it is not reeded, thus effecting reeding through gas exchange. It is therefore proposed to generate a higher pressure within the rotating segments than the ambient atmospheric pressure in the operating area of ​​the energy generation device. This makes the rotating body self-supporting. Reeding can then be achieved, for example, by filling the individual rotating segments with a gas, particularly compressed air or helium, via one or more valves.The self-supporting design of the rotating body is particularly advantageous with regard to the transport of the energy generation device, as, for example, the gas can simply be released from the rotating segments to compress the energy generation device and transport it in a smaller volume. The ability to add or release gas allows the rotating body to be reefed and is therefore reefable.

[0053] In an additional or alternative embodiment, the rotating body is designed for reefing by filling at least one of its rotating segments with a memory foam that is uncompressed in an unreefed state and tends to return to its uncompressed state when a force is applied, particularly by a reefing device. This makes the rotating body self-supporting. Reefing can then be achieved, for example, by compressing the elastic memory foam with a reefing device, and when reefing is no longer desired, the memory foam returns to its original shape. In one example, the memory foam can be compressed like a sponge by applying a force, and when the force is released, the sponge or memory foam expands again.

[0054] In an additional or alternative embodiment, the rotating body is designed for reefing by having at least one of its segments comprised of a foldable and elastic lattice structure. This structure is uncompressed in its unreefed state and tends to return to its uncompressed state when a force is applied, particularly by a reefing device. The rotating body is thus self-supporting. Reefing can then be achieved, for example, by compressing the lattice structure with a reefing device, and when reefing is no longer desired, the memory foam returns to its original shape. The foldable lattice structure can also be interpreted as an origami-like structure. In further rotating bodies formed with viscoelastic or memory foam, the segments are reefed reversibly and repeatedly by compression.

[0055] It is understood that reefing with memory foam and additionally or alternatively with the grid structure can also be achieved if both materials tend towards a compressed state. In this case, at least one rotating segment is clamped with a clamping device, and releasing the clamping device causes the rotating segment to compress again. Reefing can also be achieved in this way.

[0056] Preferably, it is further proposed that the rotating body has a reefing device with which the fluid-exposed area of ​​the gas-filled rotating segments can be adjusted. It is thus proposed that the fluid-exposed area can be reduced, for example, before or during operation of the power generation device. As previously described, reefing refers to the process of reducing the surface area of ​​the rotating body to offer less surface area to the flowing fluid. This advantageously allows the power generation device to be adapted to the current conditions and flow velocities of the fluid, and, for example, enables the power generation device to be operated even in storms or very strong currents. The reefing device can also be a tensioning device with which reefing is effected, as previously described.

[0057] Preferably, a mechanical connecting element is proposed as the reefing means, which is designed to mechanically connect the first and the third rotating segment. The mechanical connecting element can be, for example, designed as a button system, hook system, or tab system that establishes a mechanical connection between the first and the third rotating segment.

[0058] Additionally or alternatively, a traction force system is proposed as a reefing device, configured to compress at least one of the gas- or material-filled rotating segments along the axis of rotation by means of a traction force. It is therefore proposed that the length of the rotating segments be changed by a system operating with a traction force and arranged on or within the rotating body. The traction system is preferably designed as a cable system, a rod system, a hydraulic system, or an electrical system. For example, the cable system is designed as a driven winch that winds or unwinds a cable element, one end of which is attached to a rotating segment. An advantage of this type of reefing is that reefing can be carried out remotely during operation.

[0059] In a particular embodiment, the traction system is designed to be operated remotely and includes a receiver for this purpose.

[0060] Additionally or alternatively, a valve system is proposed as a reefing device, which is designed to effect a change in the fluid-flowed area by letting in or letting out a gas from the gas-filled cavity or from the memory foam.

[0061] In a particular embodiment, the valve system has an overpressure release mechanism to automatically release the gas when a predetermined overpressure is present.

[0062] All proposed reefing devices can be combined with one another; for example, the gas from the second rotating segment can be released via the valve system, and the first and third rotating segments can be mechanically connected using the mechanical connecting device. If the mechanical connecting devices are designed as snap fasteners, for example, an additional tensile force system can be used to close the snap fasteners.

[0063] Preferably, it is proposed that at least one of the rotating segments be filled with a gas whose density is less than air in order to generate lift for the rotating body and enable flight. In a preferred embodiment, helium is used as the gas. It is therefore proposed that the rotating segments be filled internally with a lift-generating gas and subsequently used in flight with a suitable suspension and cable system.

[0064] In a further particularly preferred embodiment, the rotating body has a suspension to which a cable system can be attached to initiate flight operations. In particular, the cable system can include an electrical conductor for conducting electrical energy in the form of a current and / or voltage, or the rotating body can be used as a propulsion system to pull a vessel over a connecting element. The cable system is designed, for example, as a single, tensile-resistant cable or as two or more independently attached tensile-resistant cables.

[0065] Preferably, it is also proposed that at least one of the rotating segments be inflatable. In other words, it is proposed that a gas can be introduced into at least one rotating segment.

[0066] In a preferred embodiment, it is proposed to provide inflation capability by having at least one rotating segment, and in particular all rotating segments, a valve for introducing and expelling a gas, especially air or helium. It is therefore proposed that gas can be introduced into or expelled from each rotating segment via a valve. If, for example, all rotating segments are connected, only one valve can be provided. If the rotating segments are only partially connected in a gas-exchange manner, several valves are provided accordingly.

[0067] Preferably, it is proposed that the components of the rotating body be designed such that both flight and water operation are possible, wherein the rotating segments of the rotating body are made of a durable lightweight material, such as a thin-walled plastic film or a similar durable and tear-resistant material for flight operation. It is therefore proposed that the components be designed to be as light and weather-resistant as possible.

[0068] Additionally or alternatively, it is proposed that the generator device be encapsulated, i.e., waterproof. It is therefore proposed that the energy generation device also be made waterproof. This advantageously opens up a wider range of applications and enables use in rain, over or on water.

[0069] Preferably, it is proposed that a fluid tracking device be provided, which is configured to follow the rotating body in a changing fluid flow. It is therefore proposed to employ a tracking system to follow the energy-generating device or the rotating body in a changing fluid flow, such as a changing wind direction. Additionally or alternatively, it is proposed that a stabilization device be provided, which is configured to keep the rotating body stable within the fluid flow. As a particularly simple form of stabilization and fluid tracking device, for example, a tail or a rudder can be provided on the energy-generating device, as is known from kites or gliders.

[0070] Preferably, the generator device comprises a rotating part and a stationary part, wherein the rotating part is mechanically connected to the rotating body and the stationary part has fastening means for attachment to a ground structure or to a cable system consisting, for example, of one, two, or more cables. It is therefore proposed that the rotating part of the generator device directly forms the rotor of the generator with the rotating body, or that the rotating body forms the rotor of the generator, thus constituting a single mechanical unit. The generator is therefore provided with a fastening element that enables stationary operation or is designed for operation in flight or on water.

[0071] In a particularly preferred further embodiment, a fastening means for attachment to a floor structure or to a cable system is arranged on the rotating body.

[0072] According to the invention, the generator device is mechanically connected to the rotating body via a cable system to generate electrical energy from a buoyancy force and, additionally or alternatively, a propulsive force generated by the rotation of the rotating body. It is therefore proposed to design the rotating body and the generator device separately and connect them via a cable system. The invention proposes to utilize the Magnus effect, which generates an upward buoyancy force when the rotating body is turned, for example, when wind strikes it head-on. This upward force can be used to generate energy via a cable system connected to the generator device. Once the cable is fully unwound, it retracts, causing the system to descend and the process to restart.It is therefore proposed that the energy generation device be used as a traction kite with one or more ropes connected to the generator device. Furthermore, a suspension or storage device for the rotating body during flight is provided.

[0073] Preferably, it is proposed that the generator device be designed as a permanent magnet and be configured to deliver a generated current at an electrical connection, and that in a further preferred embodiment the generator be designed as an external rotor.

[0074] According to the invention, the rotating body comprises a rotation-generating means for initiating or maintaining a predetermined rotation, wherein the rotation-generating means is configured to impart rotational angular momentum to the rotating body. Thus, a propulsion means is proposed that is designed to maintain or accelerate the rotating body in a predetermined rotation. This is based on the understanding that the Magnus effect can be utilized more effectively for energy generation at a predetermined rotational speed.

[0075] According to an alternative version of the invention, the rotation-generating means is designed as a directed nozzle that releases a generated overpressure from an interior region of a rotating segment. It is thus proposed that a nozzle be arranged on the surface of the rotating segments, which directs an angular momentum in a desired direction as the gas flows from the interior of the rotating segments.

[0076] Additionally or alternatively, the rotation-generating means is designed as a compressed air nozzle that mechanically drives the rotating body with a generated overpressure. It is therefore proposed that the rotating body be set into rotation by means of a compressed air nozzle, whereby the drive mechanism of the compressed air nozzle can be configured in various ways. For example, the compressed air nozzle can drive a vane mechanically coupled to the rotating body, so that the vane imparts an angular momentum to the rotating body.

[0077] In a further embodiment, it is also proposed that the generated overpressure be produced by a compressed air generation unit, for example, a compressed air cylinder or a compressor. The compressed air generation unit is connected to the rotary generating element via a compressed air line, particularly if the rotary element is pneumatically operated.

[0078] In a preferred further embodiment, it is proposed that the generated overpressure is produced using a compressed air cylinder.

[0079] Additionally or alternatively, it is proposed that the generated overpressure be produced with a solar pressure generation unit that creates overpressure by heating, whereby ambient air flowing into an interior area of ​​the rotating segments is heated.

[0080] In a further specific embodiment, it is proposed that the rotating body or segments are formed with a translucent film to introduce light into an interior region of the rotating body or one or more segments, and that a light-absorbing region is provided in this interior region, which absorbs the introduced light and heats up. Ambient air flows from an inlet to an outlet along the light-absorbing region to generate overpressure by expanding the ambient air through heating in the interior region of the rotating body. It is thus proposed that solar thermal effects are also utilized to generate pressure.

[0081] Furthermore, in another embodiment of the invention, a body of revolution according to claim 13 is proposed.

[0082] In a preferred embodiment, the body of revolution is designed according to one of the above embodiments.

[0083] The present invention will now be explained in more detail below by way of example embodiments with reference to the accompanying figures, whereby the same reference numerals are used for identical or similar assemblies: Fig. 1 schematically shows a perspective view of an energy generation device in one embodiment in a vertical and horizontal orientation. Fig. 2 schematically shows a perspective view of an energy generation device in one embodiment in an unreefed and reefed state. Fig. 3 A, B schematically show two embodiments of reefing means. Fig. 4 A, B schematically show in a side view and in a perspective view an energy generation device with a plurality of starting elements. Fig. 5 A-C schematically show an energy generation device in stationary operation, in water operation and in flight operation. Fig. 6 schematically shows another embodiment of an energy generation device with a rotary generating means.

[0084] Fig. 1shows an energy generation device 100 which can be set, for example, to a stationary operation, a water operation and a flight operation, as for example in Fig. 5A to 5C shown.

[0085] The energy generating device 100 has a body of revolution 200 that extends along an axis of rotation between a first point and a second point. The axis of rotation is indicated by a black arrow and also illustrates the direction of rotation of the body of revolution. In view A, the axis of rotation is vertically oriented, and in view B, the axis of rotation is horizontally oriented. Accordingly, it is proposed and by the Figure 1 illustrates that the energy generating device 100 can be operated in both vertical and horizontal orientations, or in any other axial position.

[0086] The rotating body 200 is cylindrical and is formed from a plurality of gas-filled rotating segments, namely from seven rotating segments 210 to 216. The rotating segments 210 to 216 are connected to each other and arranged along the axis of rotation.

[0087] The rotating body 200 is mechanically connected to a generator device 300, the generator device being configured to generate electrical energy obtained from the rotation of the rotating body. The generator device 300 is designed as a dynamo, to whose rotatably mounted shaft the rotating body 200 is attached. The electrical energy generated in the generator 300 can be extracted via an electrical conductor 310 in the form of a voltage UL and a current IL and stored in an electrical storage device or load 320.

[0088] The body of revolution 200 has a first rotating segment 210, a second rotating segment 211, and a third rotating segment 212. The second rotating segment 212 is arranged between the first and third rotating segments 210 and 212, respectively, and has a smaller diameter than the first and third rotating segments 210 and 212, respectively.

[0089] This arrangement is then repeated in the fourth to seventh segments 213 to 216, so that the directly adjacent rotational segments have different diameters. Thus, due to the different diameters of the rotational segments, a cylindrical, layered shape of the body of revolution is formed.

[0090] The rotating body 200 is self-supporting and has inflatable and gas-filled rotating segments 210 to 216, with a pressure inside the rotating segments being greater than the ambient pressure.

[0091] The Figure 2 schematically shows a perspective view of an energy generation device 100, as for example in the Figure 1 shown in an unreefed state in view A and in a reefed state in view B. Thus, the Figure 2 an energy generation device 100 in two different operating states.

[0092] In the left view A of the Figure 2 All rotating segments 210 to 216 of the rotating body 200 of the energy generation unit 100 are completely filled with a gas, for example, completely filled with air. The gas-filled rotating segments 210 to 216 in view A therefore have a higher pressure in their respective interior regions than the ambient pressure.

[0093] In the right-hand view B, the body of revolution 200 is reefed with a reefing device, with the reefing device in the Figure 2This is not shown. Accordingly, in view B, the surface area of ​​the rotating body 200 was reduced using a reefing device to offer less surface area to the flowing fluid. The height of the foil elements 213 to 216 was changed, specifically reduced, by the reefing device. For example, gas was released from the rotating segments 213 to 216 using a valve system.

[0094] The gas-filled rotating segments form a fluid-flow region 220, 221 that is at least partially surrounded by fluid. The fluid-flow region is therefore a region on a surface of the rotating body 200 or on the surface of the rotating segments where the fluid comes into contact with the surface and flows along it. The fluid is defined by the wavy lines in the Figure 2 depicted and intended to illustrate, for example, a wind stream or a part thereof.

[0095] By reefing with a reefing device, the length S1 of the body of revolution 200 in view A has been changed to length S2, namely shortened, as can be seen in view B. Accordingly, a different surface area for the fluid flow is formed in the reefed state, with the different surface areas being indicated by the double arrows of different lengths in the Figure 2 The illustrations simultaneously depict the length of the body of revolution. Accordingly, the fluid-flowed area 220 in view A has been adjusted to a modified fluid-flowed area 221 using the reefing device.

[0096] The rotating segments 210 to 216 are mechanically connected to one another. For example, each rotating segment 210 to 216 is mechanically connected to its adjacent rotating segment via a separating barrier in the interior of the respective rotating segments, so that each rotating segment 210 to 216 forms a closed air or gas chamber that retains enclosed gas independently of the other rotating segments. The gas from the rotating segments 210 to 216 can be released via at least one valve; for example, each rotating segment 210 to 216 has a valve.

[0097] Due to the special belly-cake shape described earlier, a particularly aerodynamic reefing effect is achieved, as the larger diameter rotational segments lie on top of the smaller diameter rotational segments, thus reducing folds that are detrimental to an aerodynamic shape. As in the Figure 2 As shown in view B, the rotational segments 216 and 214 are placed on top of the rotational segments 215 and 213, which have a smaller diameter than the rotational segments 215 and 213.

[0098] Furthermore, rotational segments 210 to 216 are designed to be inflatable, wherein at least one rotational segment has a valve for introducing and expelling a gas, for example for introducing and expelling air, the valve not being shown.

[0099] The Figure 3AFigure 1 shows an embodiment of a reefing device. The rotating body 200 is formed from at least one first, one second, and one third gas-filled rotating segment 210, 211, and 212, wherein the rotating segments are connected to one another and arranged side by side or one above the other along the axis of rotation. The second rotating segment 211 is arranged between the first and third rotating segments 210 and 213, respectively, and has a smaller diameter than the first and third rotating segments. A cake-like or dumbbell shape is formed.

[0100] The rotating body 200 has reefing means with which a fluid-flowed area of ​​the gas-filled rotating segments 210 to 212 can be adjusted, namely at least one mechanical connecting means 230, which is configured to mechanically connect the first and the third rotating segments 210 and 212, wherein the mechanical connecting means 230 is formed from interlocking push buttons. In addition, the rotating segment 211 has a valve system 240, which is configured to effect a change in the fluid-flowed area by letting in or letting out a gas, i.e., a further reefing means.

[0101] The Figure 3B shows an embodiment of a further reefing device, wherein the structure of the rotating body 200 is designed as described above. Figure 3Adescribed. A traction system 250 is provided as a reefing device, which is configured to compress at least one of the gas-filled rotating segments along the axis of rotation by means of a traction force. In the embodiment shown, the traction system 250 is designed as a cable pull system and can be combined with the reefing devices described above, as shown in the Figure 3AThe cable pull system 250 has a cable element, for example a tensile-resistant cord, which is attached at one end to the element 212 via a fastening element. A second end of the cable element is connected to a driven winch to exert a tensile force on the cable element. When the winch winds up the cable element, this results in a tensile force that acts on the element 212 via the cable element. Thus, the tensile force system 250 is designed to compress at least one of the gas-filled rotating segments along the axis of rotation by means of a tensile force and thereby achieve reefing.

[0102] The Figure 4A Figure 1 schematically shows in a perspective view an energy generation device 100 with a rotating body 200, which has a plurality of starting elements 260. The rotating body 200 of the energy generation device 100 is designed analogously to the one previously shown in the Figures 1 to 3described and shown, namely in the shape of a tree cake with seven rotational segments.

[0103] In contrast to the previously shown embodiments to which reference is made, the Figure 4A that the rotating body is designed to be self-starting. For this purpose, at least one of the rotating segments, namely all rotating segments, has at least two starting elements 260 opposite each other with respect to the axis of rotation to increase fluid resistance in the fluid-flowed area. In the Figure 4A The figure shows a multitude of starting elements arranged around the entire circumference of at least one rotational segment. All seven rotational segments feature a multitude of starting elements.

[0104] The Figure 4BFigure 1 shows a side view of an energy generation device 100 with a rotating body 200, which has a plurality of starting elements 260, 261, i.e., for example, the energy generation device from the Figure 4A in a side view. The starting elements 260, 261 each have a fluid-facing side 262 and a fluid-away side 263, the fluid-facing side having a higher fluid resistance than the fluid-away side. This ensures that even if a fluid flow impinges uniformly and completely on the rotating body, the different fluid resistance, in combination with the rotational bearing of the rotating body 200, provides a self-starting mechanism for the energy generation device 100.

[0105] The Figures 5A to 5C show three different operating modes of an energy generation device 100, namely a stationary operation in the Figure 5A , a waterworks in the Figure 5Band flight operations in the Figure 5C , as previously described to the Figures 1 to 4 described.

[0106] In the Figure 5A The energy generating device 100 is configured for ground operation and has a vertical axis of rotation. The generator device 300 has a rotating part and a stationary part, the rotating part being mechanically connected to the rotating body 200 via a shaft, and the stationary part having a fastening means 330 for attachment to a ground structure.

[0107] A suitable location for stationary operation could be, for example, a boat or ship whose bow is in the Figure 5AThis is shown schematically. If a wind blows and strikes the energy generation device, the system generates energy in the form of electrical energy, as described previously. The energy generation device 100 has six starting elements arranged in pairs opposite each other for self-starting; these starting elements are shaped like wings and function as described in the Figure 4A and 4B The described work processes and training are carried out. The energy generation device 100 generates, in addition to electrical energy, a propulsive force due to the Magnus effect.

[0108] In the Figure 5BThe power generation device 100 is designed for water operation and has a horizontal axis of rotation. The generator 300 is connected to a mooring point via a cable system to secure the power generation device 100 to a fixed point, such as a boat or ship. Furthermore, the generator 300 is equipped with two encapsulated generators, making it waterproof. When water flows along the fluid-enclosed area, the power generation device 100 begins to generate energy from the water flow. This effect is enhanced by the wing-shaped starting elements. Therefore, the power generation device 100 is also designed for water operation and can generate electrical energy from a river or ocean current. It is understood that, due to the gas-filled rotating segments, the rotating body has sufficient buoyancy for operation in water, meaning it does not sink.

[0109] In the Figure 5CThe energy generation device 100 is configured for flight operation and has a vertical axis of rotation. For this purpose, the rotating segments of the rotating body 200 are made of a resistant lightweight film, and the components of the rotating body are designed such that flight operation with the rotating body is possible. During flight operation, it may be provided that at least one of the rotating segments is filled with a gas whose density is less than air, for example, with helium, in order to generate a sufficiently large lift force that exceeds the opposing weight force. A generator device mechanically connected to the rotating body, comprising two generators 300, generates electrical energy, which is conducted away via the electrical conductors.The generator device thus comprises a rotating part and a stationary part, the rotating part being mechanically connected to the rotating body directly, and the stationary part having fastening means for attachment to a cable system. The generator device is designed to generate electrical energy obtained directly from the rotation of the rotating body.

[0110] A tear-resistant retaining cable, preferably comprising or being an electrical conductor, is preferably attached to the fastening means in order to dissipate the generated energy.

[0111] In an additional or alternative embodiment, which is not in the Figure 5CAs shown, the generator device 300 is mechanically connected to the rotating body 200 via a cable system in order to obtain electrical energy from a buoyancy force and / or propulsion force generated by the rotation of the rotating body.

[0112] It is therefore proposed to generate energy additionally or alternatively using a generator connected to the rotating body 200 via a traction cable system with one or more tear-resistant cables, i.e., not directly attached to the rotating body 200, for example, at a ground station. In other words, it is proposed that the rotating body 200 be used as a traction kite; that is, while the rotating body 200 rises due to a buoyant force, a generator is driven by a winch. Once the full cable length is reached, the rotating body is reefed, causing it to descend, and the cable can be retrieved to restart the energy generation process. The buoyant force of the rotating body 200 is due to its rotation, which is caused by the Magnus effect, the principle of which is fundamentally known from Flettner rotors.The described generator device is therefore designed to generate electrical energy indirectly derived from the rotation of the rotating body. This generator device can also be used on water via a cable system to convert energy into photoelectric or thermal energy.

[0113] In the Figure 6 The energy generation device 100 is set to flight operation and has a vertical axis of rotation. Unlike the Figure 5C The referenced body of revolution 200 has a rotation-generating means for causing or maintaining the body of revolution 200 in a predetermined rotation, the rotation-generating means being configured to impart a rotational angular momentum to the body of revolution. The rotation-generating means referred to in the Figure 5CThe directed foil nozzle is illustrated by small black dots with an outgoing arrow, which release a generated overpressure from an inner area of ​​a rotating segment. The necessary overpressure can, for example, originate from a compressed air generation unit, such as a compressed air cylinder in the Figure 6 The path of the compressed air is shown by the small white arrows.

[0114] Additionally, a compressed air nozzle can be provided that directly drives the rotating body 200 via a paddle wheel located in the Figure 6 Not shown. Stability and fluid tracking devices are also not shown.

[0115] In summary, an energy generation device is proposed that utilizes various physical effects, namely the Magnus, Darrieus and Savonius effects, which are generally known.

[0116] The proposed energy generation device has a number of advantages, which are summarized below in bullet points: A multifunctional wind and / or hydropower plant is provided for generating electricity, light, heat, etc., and is also suitable as a propulsion system for vessels such as ships or other vehicles. The ability to modify the size and shape of the energy generation device and to position it horizontally, vertically, or in other spatial orientations provides versatile application possibilities. Furthermore, the advantages of a self-contained, easily assembled and disassembled design and the associated ease of transport are obvious. Additionally, the risk of capsizing for boats or ships can be reduced if the energy generation device is used as proposed when the wind picks up.

Claims

1. An energy generating device (100) for generating energy from a flowing fluid, especially from a wind flow and / or from a water flow, comprising: - a rotation body (200), wherein - the rotation body extends along an axis of rotation between a first point and a second point and - the rotation body (200) is adapted to rotate about the axis of rotation and - the rotation body (200) is formed from at least a first, a second, and a third rotation segment (210, 211, 212), wherein - the rotation segments (210, 211, 212) are joined together and - arranged along the axis of rotation, and - they form a region at least partly surrounded by fluid, wherein - the second rotation segment (211) is situated between the first (210) and the third rotation segment (212) and has a different diameter than the first and third rotation segment; and - a generator device (300) mechanically connected to the rotation body, wherein the generator device is adapted to generate energy which is produceed from the rotation of the rotation body, wherein the generator device (300) is mechanically connected by a traction cable system to the rotation body in order to produce electric energy from a lifting force and / or propulsive force produced by the rotation of the rotation body, characterized in that the rotation body (200) comprises a rotation generating means for placing and keeping the rotation body in a predetermined rotation, wherein the rotation generating means is adapted to bring about a rotational angular momentum of the rotation body, and the rotation generating means is designed - as a directional segment nozzle, which releases a generated excess pressure from an internal region of a rotation segment and / or - as a compressed air nozzle or hot air nozzle, which drives the rotation body mechanically with a generated excess pressure.

2. The energy generating device according to claim 1, characterized in that - the first rotation segment (210) has a first diameter, - the second rotation segment (211) has a second diameter and - the third rotation segment (212) has a third diameter, wherein the first diameter is larger than the second diameter and the third diameter corresponds to the first diameter, especially so as to form a cylinder-shaped tree cake form of the rotation body (200), and / or the first diameter is smaller than the second diameter and the third diameter corresponds to the first diameter, especially so as to form an elliptical shape or flat diamond shape of the rotation body (200), and / or the first diameter is larger than the second diameter and the second diameter is larger than the third diameter, especially so as to form a conical shape of the rotation body (200) and / or the rotation segments (210, 211, 212) are shaped as rings, especially so that the rotation body is hollow and there is formed an open barrel shape, wherein the ring-shaped rotation segments are mounted rotatably about the axis of rotation by a supporting structure.

3. The energy generating device according to claim 1 or 2, characterized in that - the rotation body (200) is formed as self-starting, and - for this purpose, preferably at least one rotation segment (210; 211; 212) comprises at least two starting elements (260, 261) situated opposite in relation to the axis of rotation for increasing the fluid resistance in the region surrounded by fluid, in particular, it comprises a plurality of starting elements arranged over the entire circumference of the at least one rotation segment, and further preferably - the starting elements (260, 261) have one side facing the fluid (262) and one side facing away from the fluid (263), the side facing the fluid having a larger fluid resistance than the side facing away from the fluid.

4. The energy generating device according to one of the preceding claims, characterized in that - the rotation body is designed to be reefable, and - preferably at least one of the rotation segments is gas-filled and in particular a higher pressure is present especially in an inner region of the at least one gas-filled rotation element in an unreefed state than the ambient pressure and a reefing is accomplished by gas exchange, and / or - preferably at least one of the rotation segments (210, 211, 212) is filled with a memory foam, which is uncompressed especially in an unreefed state and strives for the uncompressed state when a force is applied to the memory foam, especially by a reefing means, and / or - preferably at least one of the rotation segments (210, 211, 212) is formed with a foldable and elastic lattice structure, which is uncompressed especially in an unreefed state and strives for the uncompressed state when a force is applied to the lattice structure, especially by a reefing means.

5. The energy generating device according to one of the preceding claims, characterized in that - a reefing means (230, 240, 250) is arranged on the rotation body, with which the region surrounded by fluid of the rotation segments (210, 211, 212) can be adjusted.

6. The energy generating device according to claim 5, characterized in that the reefing means is a reefing means from the list of reefing means comprising: - a mechanical connecting means (230), which is adapted to mechanically connect rotation segments; - a valve system (240), which is adapted to produce a change in the region surrounded by fluid by means of admitting or venting a gas; - a traction system (250 which is adapted to compress at least one of the rotation segments along the axis of rotation by means of a traction force, in partricular a cable pull system or a rod system.

7. The energy generating device according to one of the preceding claims, characterized in that - at least one of the rotation segments (210, 211, 212) is gas-tight and filled with a gas the density of which is less than that of air, preferably helium, in particular in order to generate a lifting force of the rotation body and establish a flying operation.

8. The energy generating device according to one of the preceding claims, characterized in that - the rotation segments (210, 211, 212) are inflatable and preferably for this purpose at least one rotation segment, especially all rotation segments, has a valve for admitting and discharging a gas, especially for admitting and discharging air or helium.

9. The energy generating device according to one of the preceding claims, characterized in that - the components of the rotation body (200) are designed such that a flying operation and a water operation can be established with the rotation body, for which purpose the rotation segments (210, 211, 212) of the rotation body (200) are made of durable lightweight material, preferably a durable film, and / or the generator device (300) is encapsulated.

10. The energy generating device according to one of the preceding claims, characterized in that - the energy generating device further compriss a fluid tracking device, which is adapted to make the rotation body (200) track a variable fluid flow, in particular a wind tracking device, and / or - the energy generating device comprises a stabilization device, which is adapted to maintain the rotation body (200) stable in motion in the fluid flow.

11. The energy generating device according to one of the preceding claims, characterized in that - the generator device (300) comprises a rotating part and a stationary part, wherein the rotating part is mechanically connected to the rotation body and the stationary part comprises fastening means for securing to a floor structure or to a cable system, and / or - the generator device (300) is permanently excited in design and is adapted to put out a generated current to an electrical terminal, and the generator is preferably designed as an external rotor.

12. The energy generating device according to one of the preceding claims, characterized in that - the generated excess pressure is generated with a compressed air generating unit or a heat generating unit, in particular with a compressor or with a compressed air cylinder, wherein the heat or compressed air generating unit is integrated in the rotation body or connected to the rotation generating means by a compressed air line, and / or - the generated excess pressure is generated with a solar pressure generating unit, which produces an excess pressure by heating, wherein ambient air flowing into an internal region of the rotation segments is heated, and in particular for this purpose - the rotation body or the rotation segments are formed with a transparent film, in order to introduce light in an internal region of the rotation body or of one or more rotation segments, and wherein a light-absorbing region is provided in the internal region, which absorbs the light so introduced and becomes heated, and ambient air flows from an inlet to an outlet along the light-absorbing region in order to produce the excess pressure by an expansion of the ambient air due to heating in the internal region of the rotation body.

13. A rotation body (200) for an energy generating device for generating energy from a flowing fluid, especially from a wind flow and / or from a water flow, wherein the rotation body (200) extends along an axis of rotation between a first point and a second point and the rotation body is adapted to rotate about the axis of rotation and the rotation body is formed from at least a first, a second, and a third rotation segment (210, 211, 212), wherein the rotation segments are joined together and arranged along the axis of rotation, and they form a region at least partly surrounded by fluid, wherein the second rotation segment (211) is situated between the first and the third rotation segment (210, 212) and has a different diameter than the first and third rotation segment (210, 212), in particular in order to form a cylinder-shaped tree cake form or a spherical shape or a conical shape of the rotation body, wherein the rotation body is mechanically connected to a generator device (300) in order to produce electric energy from the rotation of the rotation body, wherein the rotation body is mechanically connected by a traction cable system to the generator device (300) in order to produce electric energy from a lifting force and / or propulsive force produced by the rotation of the rotation body, characterized in that the rotation body (200) comprises a rotation generating means for placing and keeping the rotation body in a predetermined rotation, wherein the rotation generating means is adapted to bring about a rotational angular momentum of the rotation body and the rotation generating means is designed - as a directional segment nozzle, which releases a generated excess pressure from an internal region of a rotation segment and / or - as a compressed air nozzle or hot air nozzle, which drives the rotation body mechanically with a generated excess pressure.

14. The rotation body according to claim 13, characterized in that it is configured like the rotation body of the energy generating device according to one of the preceding claims 1 to 12.