WO2020104413A1

WO2020104413A1 - Buoyancy device

Info

Publication number: WO2020104413A1
Application number: PCT/EP2019/081724
Authority: WO
Inventors: Georg Bachsleitner
Original assignee: Georg Bachsleitner
Priority date: 2018-11-19
Filing date: 2019-11-19
Publication date: 2020-05-28
Also published as: DE102018129046A1; DE112019005249A5

Abstract

The invention relates to a buoyancy device (100) for converting mechanical and/or kinetic energy into electrical energy, wherein the buoyancy device (100) comprises: at least one buoyant element (110) having a buoyant element density (ρ_AK); at least one buoyancy container (120) having a buoyancy fluid (121) with a fluid density (ρ_AB), wherein the buoyant element density (ρ_AK) is lower than the fluid density (ρ_AB), for generating a buoyant force (FA), directed downstream, of the at least one buoyant element (110) in the at least one buoyancy container (120); and one or more deflection devices (113, 114), wherein the buoyant element/s (110) are/can be caused to move along a rotational direction (115) by the kinetic energy of the buoyant element/s (110), wherein the buoyant element/s (110) pass through the at least one buoyancy container (120), characterised in that the buoyant element/s (110) have one or more buoyancy flaps (111) which can be moveably or foldably transferred out of a storage position (200) into a buoyancy position (210).

Description

Buoyancy device

The invention relates to a buoyancy device for converting mechanical and / or kinetic energy into electrical energy according to the preamble of claim 1. Generators of a power plant are mechanical

Energy driven. The mechanical energy in turn comes from kinetic energy, for example from a hydro or wind power plant. In principle, the kinetic energy can also be provided by an ascending movement of a buoyancy body. The ascent movement of the buoyancy body is the result of a buoyancy force. A distinction can be made between dynamic and static buoyancy. Static buoyancy means that the direction of buoyancy is defined by gravity.

In static buoyancy, the cause of the buoyancy is that a higher pressure acts on the underside of a body than on the top of a body. If a fluid reaches the underside of a body, the Archimedean principle comes into play and it acts as a buoyant force. The static buoyancy corresponds to the weight of the fluid deformed or displaced by the buoyancy body. The fluid is typically a liquid such as water. The lifting force is thus calculated from the product of the acceleration due to gravity, the density of the displaced fluid and the volume of the displaced fluid. If the density of the displaced body is equal to the density of the displaced fluid, the body floats. If the density is lower, the body rises and if the density is higher, the body sinks. In known devices for using buoyancy energy, the difference in density required for buoyancy is achieved by blowing air into the buoyancy bodies located in a water container. A compressor, which is itself supplied with energy, is required to blow in the air. As a result, the energy balance of the lift power plant deteriorates.

For a continuous operation of a buoyancy power plant Furthermore, one or more buoyancy bodies can be connected to a common traction means, the traction means being tensioned by two deflection devices, for example deflection rollers. The buoyancy bodies can now run approximately along an elliptical path along the traction means. A section of this orbit is arranged in a buoyancy container, the buoyancy force acting on the buoyancy bodies in this buoyancy container causing the traction means to be driven. This kinetic energy can be converted into electrical energy by a corresponding active connection with a generator. Of central importance for this is the passage of the buoyancy bodies from the environment into the buoyancy tank without the buoyancy tank losing liquid.

In the buoyancy power plant of DE 20 2014 005 703 U1, the transfer of individually executed buoyancy bodies from below into the liquid of a buoyancy chamber is realized with the aid of a lock chamber which separates an air area from a liquid area within the buoyancy power plant. The lock chamber can be pressurized with respect to the adjacent liquid and feed the buoyancy body from below through a linearly movable slide to the buoyancy chamber filled with liquid. [0006] DE 10 2013 009 842 A1 is a rotating closed one

Described channel, in which individually designed buoyancy bodies are guided in a circle, wherein the channel can be divided into a liquid-side area and an air-side area. Spherical and / or cylindrical buoyancy bodies are in operative connection during buoyancy in a liquid column with driving elements of a drive belt for a generator shaft. After exiting the liquid column, the buoyancy bodies are returned to the entry point on the air side by means of gravitational force or by their own weight, whereby they pass through airlock flaps.

[0007] DE 10 2016 010 718 A1 relates to a buoyancy power plant with a buoyancy chamber filled with liquid. The buoyancy bodies are cuboid or cube-shaped and have an upper side in the conveying direction Sealing device through which a fluid-tight passage of the buoyancy body through a sealing shaft is to be ensured. Loss of liquid from the buoyancy chamber through the sealing shaft is collected in a collecting basin and fed back into the sealing shaft by means of an intermediate pump.

It is an object of the invention to improve the existing state of the art and, where appropriate, to provide a buoyancy device for a buoyancy force work which can provide as much electrical energy as possible to a generator with as little loss energy as possible. For this purpose, the buoyancy device specified in claim 1 is proposed. Optional, advantageous embodiments of the invention are specified in the dependent claims. It should be pointed out that the features and measures listed individually in the following description can be combined with one another in any technically meaningful manner and show further refinements of the invention. The description characterizes and specifies the invention, in particular in connection with the figures additionally. Mostly, terms such as buoyancy bodies, buoyancy flaps or buoyancy containers are spoken in simplified terms in terms of number or plural for improved legibility, the other being expressly covered by the scope of protection of the application.

The invention relates to a buoyancy device for converting mechanical and / or kinetic energy into electrical energy, the buoyancy device firstly having at least one buoyancy body with a buoyancy body density, secondly at least one buoyancy tank which has a buoyancy fluid with a fluid density, the buoyancy body density being less than the fluid density, for generating an upward buoyancy force of the at least one buoyancy body in the at least one buoyancy container, and thirdly has one or more deflection devices. Here, the buoyant body or bodies can be set in motion along a direction of rotation by the kinetic energy of the buoyant body or bodies, wherein the one or more buoyant bodies Pass buoyancy container and furthermore the buoyancy body (s) have one or more buoyancy flaps which can be moved or folded from a storage position into a buoyancy position.

The buoyancy body and / or the buoyancy flaps are designed as floating bodies. The buoyancy flaps can be formed as part of the buoyancy body. The shape or the material of the buoyancy body and / or the buoyancy flaps is arbitrary. The material of the buoyancy flaps can be chosen differently than the rest of the buoyancy body. The buoyancy flaps are preferably arranged on the buoyancy body at regular intervals, that is to say equidistantly from one another, and are firmly connected to the buoyancy body. Alternatively, the lift flaps can also be arranged at irregular intervals or overlap each other like a scale. This also enables an irregular distribution along the circumference. It is important that the buoyancy flaps and the buoyancy body form a unit in the folded state so that when entering through the container opening in the

Buoyancy container little resistance is present. By transferring the buoyancy flaps into the storage position, the buoyancy liquid reaches a buoyancy surface on the underside of the buoyancy flap, whereby the buoyancy flap is available for a buoyancy effect. A buoyancy force thus acts on the buoyancy flap, which moves a buoyancy body connected to the buoyancy flap, against the force of gravity, upwards. As with a ship, buoyancy is achieved by displacing buoyancy fluid. The buoyancy fluid can also be chosen as desired.

In a preferred embodiment of the invention, at least one lift flap is wing-shaped and within the

Buoyancy container aligned and / or adjustable so that the buoyancy force acts during the buoyancy process perpendicular to a plane of the wing of the buoyancy flap.

In the storage position, that is, in the folded state of the foldable lift flap, the size of the lift surface and thus the lift force that can act on an underside of the lift flap is almost 0 m ² . In the buoyancy position, that is to say in the unfolded state of the foldable wing-like and / or plate-shaped buoyancy flap, the size of the buoyancy surface consequently increases since buoyancy fluid can now get under the buoyancy flap. The size of the buoyancy area is 0 + X m ² . Depending on the size, type, shape, number and arrangement of the lift flaps, X can be varied and enlarged as required. The plate level can, for example, be approximately rectangular and have edge lengths of 5 cm and 8 cm. The shape is not decisive, rather it is important that the flaps fit well into the recesses. This results in a lift area of 40 cm ² for a lift flap, i.e. an element. All sizes mentioned can be selected as required. With an exemplary thickness of the buoyancy flap of 2 cm, a buoyancy volume of 80 cm ^{3 can be} calculated, which corresponds to the amount of buoyancy fluid displaced by the buoyancy flap. In other words, the flaps, when opened (at right angles to the buoyancy), have the same volume effect as floating boards and are pulled upwards. The buoyancy body in the buoyancy container is pulled upwards by the volume of the buoyancy flaps. The volume of the lift flaps determines the lift force. The lighter or more voluminous the materials of the buoyancy body and / or the flap, the more energy is possible. The lighter the material, the lower the density compared to

In an optional development, the buoyancy body (s) with the buoyancy flap (s), preferably in one piece, are designed as a strand-like and / or circumferential floating body. The buoyancy body can be formed in one piece as a strand-like and / or circumferential floating body, which in turn can have a preferably round, oval or rectangular cross section in whole or in sections and which has at least in sections a plurality of buoyancy flaps. If the length of this revolving device is, for example, 1 meter, at least 10 or more elements or buoyancy flaps could be provided for the buoyancy body. Taking into account the lift area calculated per lift flap, this would be a total lift area of 400 cm ² available. The buoyancy flaps can also be provided in a scale-like manner and overlap one another in the folded state. Due to the construction of the buoyancy device with a single rotating or strand-shaped floating body, a section of the floating body is permanently immersed in the buoyancy liquid in the buoyancy container. The immersion process, which in the prior art has to be carried out again and again using separately constructed floating bodies, can be dispensed with. In addition, the buoyancy body can have one or more chambers which are filled with air and / or with another gas and / or material, so that the density of the buoyancy body can be further reduced.

Preferably, the buoyancy body (s) have one or more depressions as a receptacle for the buoyancy flap (s) in the storage position, the buoyancy flap (s) preferably being connected to the buoyancy body via a common flexible hinge. In other words: The buoyancy body (s) are formed in one piece with the buoyancy flap (s), the buoyancy flap (s) and the buoyancy body (s) being connected to one another via a common flexible hinge. The buoyancy flaps can be formed with the same material of the buoyancy body. Alternatively, the lift flap can be formed separately and connected as a hinge, for example to the lift body, for example with a screw connection. The hinge can be designed in several parts and with a stop device that prevents overstretching. It is also conceivable for the lift flap to deviate from the folded position by 90 degrees. The lift flaps can be made with silicone or other plastics. The decisive factor is a light, stable, wear-resistant and low-maintenance design, so that the lift flaps do not wear out even if they are passed through the passage frequently. The lift flaps and / or the lift body can be made of solid material or with cavities. The cavity can be formed continuously or divided into smaller cavities by separating devices. The cavities can, for example, be filled with air and / or with another gas and / or with a liquid, the density this liquid is smaller than the fluid density of the buoyant liquid. Furthermore, the filler material of the buoyancy body and / or the buoyancy flaps can be a gas or another material which already has a buoyancy in relation to ambient air, for example flelium. By using a particularly light material for filling, the casing of the buoyancy body and / or the buoyancy flaps can optionally be formed with a material that has a higher density than the buoyancy fluid, so that the buoyancy body and / or the buoyancy flaps still have a lower density overall than have the buoyancy fluid. As a result, there is more scope with regard to the casing of the buoyancy body to optimize it with regard to a surface suitable for the buoyancy device. An optimal surface of the buoyancy body and / or of the buoyancy flaps is suitable for a low-friction passage into the buoyancy container and is at the same time stable and durable. The material for the floating body as a unit consisting of buoyancy body (s) and buoyancy flaps can be foamed plastic, for example.

In an optional, but advantageous development of the invention, the buoyancy body (s) have a depression as a receptacle for the buoyancy flap (s) in the storage position. By including the lift flaps in the storage position, the flow resistance can be reduced, which improves the energy efficiency of the lift device and lowers the operating costs. The buoyancy flaps can thus be produced, for example, by cutting them out of a buoyancy body or floating body formed with a solid material, so that only one connecting section remains as a bending hinge. As a result, the buoyancy body with the buoyancy flaps in the storage position preferably has a continuous cross section and can be easily carried out through passages or passages, which will be explained in more detail.

An open or closed air chamber is preferably provided for transferring the lift flap (s) from the storage position into the lift position. This air chamber is designed as an additional opening mechanism, for example as an independent buoyancy element, and preferably at the end or in an edge region of the buoyancy flap arranged. Air chamber does not mean that there must be air in the chamber. Rather, a gas mixture can also be provided which is even lighter than air, for example helium. It is important that the flap is dimensionally stable against the water pressure. As an alternative to the air bubble, inflow openings can be provided in the lift flap. Porous embodiments are also conceivable under certain circumstances.

In a preferred embodiment of the invention, the buoyancy container, preferably on an underside, has a passage for the fluid-tight passage of the buoyancy body or bodies, the buoyancy flap (s) being arranged in the storage position during the passage.

When entering the passage on the underside of the container, the lift flaps are arranged in the storage position. The opening mechanism of the lift flap is actuated during the passage through the passage and / or immediately after the passage through the passage. When the buoyancy flap emerges from the passage on the underside of the buoyancy container, the buoyancy flaps move from the storage position into the buoyancy position, while buoyancy fluid penetrates between the buoyancy flap and the buoyancy body. The lift flap can therefore already open by being completely immersed in the liquid. A separate opening mechanism would therefore be unnecessary. In the buoyancy position, the buoyancy flaps can develop a wing effect and, due to the direct connection with the buoyancy body, move the latter upwards through the natural buoyancy. For the fluid-tight passage, a sealing device, comparable to a shaft seal, is provided, which separates the buoyancy container from the environment in spite of the axial / linear movement of the

Buoyancy seals. A film made of plastic and / or aluminum can be used as the sealing device, which is attached to an underside of the buoyancy container and is guided through the passage into the interior of the buoyancy container, so that it is immersed, for example, 2-10 cm, preferably 5 cm, in the buoyancy liquid . The film is pressed against the buoyancy body by the water pressure or the pressure of the buoyancy liquid thus enables a low-friction seal. The buoyancy container can be selected, for example, with a circular cylindrical diameter of 25 cm and a container height of 1.2 m, the liquid column having a height of 1 m.

In an optional development of the invention, the buoyancy device has a folding funnel, the buoyancy flaps being transferred from the floating position to the storage position or being able to be transferred by the folding funnel. In the area of the folding funnel, a drip-off device can be provided for returning buoyancy liquid which has been removed from the buoyancy container or carried away by the buoyancy body and the buoyancy flaps. This minimizes the loss of buoyancy fluid and further improves the economy of the system.

[0023] The deflection device preferably has two deflection rollers, the axes of rotation of the deflection rollers being aligned parallel to one another and arranged vertically one above the other. By guiding the buoyancy device by means of deflection rollers, the friction losses can be minimized. The deflection rollers span an elliptical orbit for the buoyancy body.

Preferably, but not necessarily, the buoyancy body or bodies are each connected to a, preferably common, rotating drive belt, the drive belt being designed for coupling to the deflection device. In other words, the buoyancy body has a drive belt, which is in mechanical operative connection with the deflection device and can pass the mechanical energy through the kinetic energy of the buoyancy to a generator for conversion into electrical energy. As a result, the drive belt can be made of a different material than the buoyancy body or the buoyancy flaps. The drive belt can be implemented as a rope, chain or drive belt. The lift flaps can be attached directly to the drive material or drive belt. This can maximize the volume of the lift flaps. In an optional advantageous development of the buoyancy device to form a buoyancy power plant, the buoyancy device has a generator which is coupled to the buoyancy body (s) and / or the drive belt via a means for power transmission. The transmission of mechanical energy from the

The buoyancy body and / or the drive belt can be designed, for example, by engagement between the drive belt and / or buoyancy body and a tensioning wheel. The axis of rotation of the tensioning wheel can be arranged on a generator shaft that drives the generator. Alternatively, one of the deflection rollers could be arranged on a generator shaft. Depending on the size of the buoyancy container, several revolving buoyancy bodies connected with a drive belt can be used. In a further development, the arrangement of several buoyancy containers, each buoyancy container having one or more revolving buoyancy bodies, can be combined to form block power plants. Further details, features and effects based on the

Invention result from the following description of exemplary embodiments of the invention, as well as from the drawings. These show basic sketches in an exemplary embodiment in:

Figure 1 a is a schematic side view of a lift flap in the storage position;

Figure 1 b is a schematic side view of a lift flap in the lift position of an exemplary embodiment according to the invention;

[0030] FIG. 2 shows a buoyancy device in an exemplary embodiment according to the invention; Figure 3a is a schematic plan view of a lift flap in

Storage location;

Figure 3b is a schematic plan view of a lift flap in Buoyancy position.

In the different figures, identical or functionally identical parts are always provided with the same reference numerals, which is why they are usually only described once. Figure 1 a shows a section of a buoyancy body 110 with a buoyancy flap 111 with a buoyancy body density P _AK in

Storage position 200. The buoyancy flap 111 is foldable, pivotable about a flexible hinge 119 or another hinge joint, connected to the buoyancy body 110. In the storage position 200, the buoyancy flap 111 is arranged in a buoyancy liquid 121 with a fluid density PAB. Because the buoyancy density PAK is lower than the fluid density PAB, a naturally upward natural buoyancy force FA can be achieved in principle, but no buoyancy liquid 121 can reach the underside of the buoyancy flaps 111. In Figure 1 b, however, the buoyancy flap 111 of the

Storage position 200 is guided into the buoyancy position 210 by a pivoting movement around the bending hinge 119, so that buoyancy liquid 121 gets under the buoyancy flap 111. Due to the difference in density between buoyancy flap 111 and buoyancy fluid 121, a lower pressure prevails on an upper side 111 a of the buoyancy flap 111 than on the underside 111 b of the buoyancy flap 111. As a result, a vertically upward lifting force FA acts on the buoyancy flap 111, which entrains the buoyancy body 110 . The buoyancy flap 111 can be received in a receptacle 112 in the buoyancy body 110 in the storage position 200 (cf. FIG. 1 a). This makes it possible, for example, to first form the buoyancy body 110 from a solid material 117 and to form the buoyancy flap (s) 111 by cutting the solid material 117.

In FIG. 2, a large number of the cutouts according to FIGS. 1a and 1b are arranged to form an endlessly revolving buoyancy body 110 for a buoyancy device 100. The buoyancy body 110 thus consists of a continuous solid material 117 and a plurality of lift flaps 111, which are preferably arranged equidistantly from one another over the entire length of the solid material 117 or lift body 110. By forming the buoyancy device 110 with a single rotating or strand-shaped floating body, a section of the floating body is permanently immersed in the buoyancy liquid 121 in the buoyancy container 120. The circumferential buoyancy body 110 is spanned by an upper deflection roller 113 and a lower deflection roller 114 to form an ellipse-like path, the buoyancy body 110 being guided in a direction of movement 115, here counterclockwise, when the two deflection rollers 113, 114 rotate. At least a portion of the buoyancy body 110 is arranged in a buoyancy container 120 which is wholly or partially filled with a buoyancy liquid 121. The section of the buoyancy body 110 in the buoyancy container 120 is ideally oriented vertically. In the buoyancy container 120, the buoyancy flaps 111 are transferred to a buoyancy position 210 (cf. FIG. 1b), a buoyancy force FA acting on the buoyancy flaps 111, the buoyancy body 110 also moving in the direction of movement 115 due to the upward movement of the buoyancy flaps 111 is moved. When leaving the buoyancy container 120 on an upper side of the buoyancy container 120, the buoyancy flaps 111 are still unfolded in a buoyancy position 210. A folding funnel 125 is provided for transferring the unfolded buoyancy flaps 111 into the receptacle 112 (see FIG. 1 a), which is preferably is also connected to a drip-off device 124, so that buoyancy fluid 121 carried or entrained by the buoyancy flaps 111 can be wiped off and returned to the buoyancy container 120 in order to keep the loss of buoyancy fluid 121 low. The folding funnel 125 is preferably arranged in the direction of movement 115 after the upper deflection roller 113. In the direction of movement 115 after the lower deflecting roller 114, a passage 122 is provided for entry of the lift flap 111 on the underside in the storage position 200 into the lift container 120. Leakage of the buoyancy fluid 121 downward in the area of the passage 122 can be avoided by a sealing device. The The sealing device can be, for example, a film or a membrane which is fastened to the underside of the buoyancy container 120 and projects into the buoyancy liquid 121 by a few centimeters. The fluid pressure of the buoyancy fluid 121 presses the film or membrane against the buoyancy body 110 and thus seals the buoyancy container 120 downward with little friction. This passage 122 can preferably be formed with a funnel 123. In order to use this revolving movement of the buoyancy body 110, the mechanical energy is transmitted to the drive shaft 130 of a generator, for example by means of a tensioning wheel 130. Such a tensioning wheel 130 or a comparable gearwheel is in engagement with the moving buoyancy body 110 and is thereby rotated. The tensioning wheel 130 itself sits on the drive shaft for the generator or is operatively connected to it.

Figure 3a outlines a cross section through a buoyancy body 110 in the area of a buoyancy flap 111 in a storage position 200. The cross section is thus divided into the area with the solid material 117 and the area with the buoyancy flap 111. In the connecting area between the buoyancy flap 111 of the The hinge 119 is provided with solid material 117. In the area of the solid material 117, preferably at a maximum distance from the bending hinge 119, a drive belt 116 or drive belt can be provided, the material of which differs from the solid material 117 and is specifically for a power transmission between the drive belt 116, deflection rollers 113, 114 and a tensioning wheel 130 ( see Figure 2) is formed. The drive belt 116 or drive belt can also be designed with an annular cross section. To expand the flap 111, an air bubble 118 can be provided as an additional opening mechanism.

Figure 3b outlines a cross section through a buoyancy body 110 in the region of a buoyancy flap 111 in a buoyancy position 210. The buoyancy flap 111 thus forms a wing-like buoyancy surface for top-side and / or bottom-side contact with the buoyancy liquid 121 (see FIG. 1b) . The air bubble 118 is preferably arranged at the end, that is to say at a maximum distance from the flexible hinge 119 and / or the drive belt 116. Air bubble 118 may be in contact with passage 122 and / or the funnel 123 (cf. FIG. 2) are set in vibration and / or excitation, as a result of which the lift flap 111 opens and the lift force FA can act.

An exemplary test arrangement is described below: A buoyancy tank 120 is assumed to be a water tank with a diameter of 25 cm and a flea of 2 m, so that an internal volume of approximately 98 l results. The buoyancy container 120 is filled with water as a buoyancy liquid 121 up to a filling height of 1.4 m, so that approx. 65-69 l of buoyancy liquid 121 are filled in. The buoyancy body 110 is a hose which can be used as a toy and fitness device and which preferably consists of solid, closed-pore polyethylene foam. The buoyancy body 110 has a weight of 100 grams and displaces along a flea of 1.4 m with a diameter of 6 cm, buoyancy liquid 121 with a volume of just under 4 I. The difference between the volume of the buoyancy liquid 120 and the volume of the buoyancy body 110 is about 65 l or just under 65 kg. The buoyancy body 110 is pushed through the passage 122 into the initially empty buoyancy container 120 as part of the experimental arrangement. Subsequently, the buoyant liquid 121 is filled with water up to the aforementioned fill level of 1.4 m. The buoyancy body 121 protrudes downward through the passage 122 10 cm from the buoyancy container

120 out. A membrane, for example a film made of plastic or aluminum, is arranged between the buoyancy body 110 and the buoyancy container 120 for sealing purposes. The membrane can be glued to the underside of the buoyancy container 120 directly or with the aid of additional fastening devices. A folding rod is inserted into this protrusion, which reaches behind the buoyancy container 120 in the area of the passage 122 and initially fixes the buoyancy body 110. If the folding rod is removed, the buoyancy behavior of the buoyancy body 110 can be observed. It has been shown that a lifting body 110 without a lifting flap 111 does not move after the folding bar has been pulled. In contrast, buoyancy bodies 110 with buoyancy flaps, which are produced by cutting the solid material of buoyancy body 110, showed upward buoyancy behavior. For example, 13 lift flaps at right angles to the main strand of the Buoyancy body 110 may be arranged. The surface of the underside 111b of the buoyancy flap 111 can, for example, have an area of 45 cm ² (9 cm by 5 cm), the surface being in the main strand of the buoyancy body

110 expanded so that a total of at least 585 cm ² can be assumed as the buoyancy area for all 13 buoyancy flaps 111. When pulling the

The flotation rod becomes the buoyancy body 110 with the buoyancy flaps unfolded

111 pulled up quickly. The water, which was previously held in the buoyancy container 120 by means of the membrane, suddenly leaves the buoyancy container 120, whereby the latter is emptied. reference number list:

100 buoyancy device

110 buoyancy bodies

111 lift flap

111 a top of the lift flap

111 b Underside of the lift flap

112 recording

113 Upper deflection device / deflection roller

114 Lower deflection device / deflection roller

115 direction of rotation

116 Drive belt or drive belt

117 solid material

118 air bubble

119 bending hinge

120 buoyancy tanks

121 buoyancy fluid

122 passage

123 funnels

124 drainer

125 folding funnels

130 drive shaft for generator / tensioning wheel

200 storage position

210 buoyancy position

FA buoyancy

p _ AB fluid density in the buoyancy tank

P_AK buoyancy density

Claims

Claims 1-11

1. buoyancy device (100) for converting mechanical and / or kinetic energy into electrical energy, the buoyancy device (100) comprising:

- at least one buoyancy body (110) with a buoyancy body density (P_AK),

- At least one buoyancy container (120) which has a buoyancy liquid (121) with a fluid density (P_AB), the buoyancy body density (P_AK) being less than the fluid density (P_AB), for generating an upward buoyancy force (F _Ä ) of the at least one Buoyancy body (110) in at least one buoyancy container (120),

characterized in that

the buoyancy body (s) (110) have one or more buoyancy flaps (111) which can be moved or folded from a storage position (200) to a buoyancy position (210).

2. Buoyancy device (100) according to claim 1, characterized in that the buoyancy device (100) has one or more deflection devices (1 13, 114), wherein the buoyancy body (s) (110) by the kinetic energy of the buoyancy body (s) (110) in a movement along a direction of rotation (115) of the deflection devices (113, 114) are displaceable or displaced, wherein the one or more buoyancy bodies (110) pass through the at least one buoyancy container (120).

3. Buoyancy device (100) according to claim 1 or 2, characterized in that at least one buoyancy flap (111) is wing-like and is aligned and / or orientable within the at least buoyancy container (120) such that the buoyancy force (FA) during the buoyancy process is perpendicular to one level of the wing of the lift flap (111) acts.

4. Buoyancy device (100) according to one of the preceding claims, characterized in that the buoyancy body (110) with the buoyancy flap (s) (111), preferably in one piece, is designed as a strand-like and / or circumferential floating body.

5. buoyancy device (100) according to one of the preceding claims, characterized in that the buoyancy body (s) (1 10) one or more recesses as a receptacle (1 12) for the buoyancy flap (s) (1 1 1) in the storage position (200 ), wherein preferably the lift flap (s) (1 1 1) are connected to the lift body (1 10) via a common hinge, in particular a flexible hinge (1 19).

6. buoyancy device (100) according to any one of the preceding claims, characterized in that an open or closed air chamber (1 18) is provided for transferring the buoyancy valve (s) (1 1 1) from the storage position (200) into the buoyancy position (210) is.

7. buoyancy device (100) according to one of the preceding claims, characterized in that the at least one buoyancy container (120), preferably on an underside, has a passage for the fluid-tight passage (122) of the buoyancy body (1 10), the buoyancy flap (n) (1 1 1) in the area of the passage (122) in the storage position (200) are arranged.

8. buoyancy device (100) according to any one of the preceding claims, characterized in that the buoyancy flaps (1 1 1) from the buoyancy position (210) in the storage position (200) by a folding funnel (125) are transferred or can be transferred.

9. buoyancy device (100) according to any one of the preceding claims, characterized in that the deflection device has an upper deflection roller (1 13) and a lower deflection roller (1 14), the axes of rotation of the deflection rollers (1 13, 1 14) aligned parallel to each other and are arranged vertically one above the other.

10. buoyancy device (100) according to any one of the preceding claims, characterized in that the buoyancy body (s) (1 10) are each connected to a, preferably common, drive belt (1 16), the drive belt (1 16) for coupling with the Deflection device (1 13, 1 14) is formed. Buoyancy device (100) according to one of the preceding claims, characterized by a generator which, with the buoyancy body (s) (110) and / or the drive belt (116) via a means for power transmission, for example a tensioning wheel (130), is coupled.