DE2524360A1 - WIND POWER PLANT - Google Patents

Description

PATENT ADVOCATES A. GRÜNECKER

DIPU-ING;

H. KINKELDEY

DR-ING.

2524360 ^W - STOCKMAlR

* ■ πα im-. AJiPAiTTrW

K. SCHUMANN

OR. BER MAT. DlPU-PHYS

P. H. JAKOB

G. BEZOLD

DR HER M »T- DPL-CHEM.

MUNICH

E. K. WEIL

DR RER OeC IMG

8 MUNICH 22

MAXIMILIANSTRASSE 43

LINDAU

June 2, 1975 P. 9334-30 / Hä

Alberto Kling

8156 Percha

At the hill 14

Win dkr af txire rk

The invention relates to a wind power plant with a rotor arrangement with at least one with a power generator coupled rotor, a support device for storage of rotor assembly and power generator and a device for xlusrichtung the rotor assembly in the wind direction.

Previously known wind power plants of the type explained above have support devices which are designed as scaffolds are, by means of which the rotor or rotors and the power generator coupled therewith are supported on the ground. Such supporting structures are stationary and otherwise limited in their height, since when a relative is exceeded low level of construction costs becomes unreasonably large. Therefore

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TELEPHONE (OBS) 22 as 89 TELEX OS-2938O TELEPHONE COMBINATION MONAP

are the rotors of these known wind power plants. arranged at a relatively low height above the surface of the earth and can only be acted upon by winds very close to the ground. The strength, direction and frequency However, winds close to the ground are strongly dependent on the geographical conditions and otherwise considerable fluctuations subject. The high-altitude winds prevailing at great distances from the ground, which in their intensity and Direction are much more uniform than winds close to the ground cannot with the known wind power plants be exploited.

The invention is therefore based on the object of a wind power plant to create the type explained above, which is easy to use and economical Conversion of wind energy from high-altitude winds in large ground clearance enables.

This object is achieved in that the Carrying device at least one aerostatic Dead weight and the weight of the other devices connected to it such as rotor assembly, power generator, Alignment device-carrying float, for example gas-filled hollow body, which has at least one Bondage line is connected to an anchor on the ground or a floating body at sea.

In the wind power plant according to the invention, the support device is thus no more than rigidly connected to the ground Shoring designed, but as an aerostatically floating device that is in the desired height above can be brought to the ground and there by means of at least one shackle rope that they anchoring on the ground or a floating body, for example one

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Floating buoy connects, held at the desired height can be. By means of the floating support device, the rotor or rotors is brought to heights at which strong and there are high-altitude winds that are subject to relatively minor fluctuations in their intensity and wind direction. the The energy generated there can, for example, be transported to earth via a power line. It is for example possible to train a tether as a power cable at the same time. For example, it is also possible to use the energy generated at a great height there directly, for example to feed one as well transmitter carried by the float or for supplying optical display devices, e.g. illuminated letters, which are carried by the float x ^ earth. It is for example It is also conceivable that the energy generated at great heights is used directly to carry out processes that endanger the environment to be used in facilities that are also carried by the float. The ones like that Waste products generated by processes could possibly be released into the atmosphere in harmless amounts will. The floating wind power plants according to the invention have the further advantage that they do not have a large Effort with transport facilities, for example with trains or trucks, transported to the installation site and must be set up there, but can be completely set up in the factory and then floating, yourself can be carried to the place of use in a self-supporting manner. Wind power plants according to the invention are therefore inter alia especially for use in undeveloped areas, such as in desert areas and large forest areas, in which there are no transport routes, suitable. For example, you can also use it to power floating or remote derrick can be used on the high seas.

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A wind power plant according to the invention is advantageously like this designed that the rotor assembly of at least one pair of coaxially arranged, opposing, angular momentum balanced Rotors. In such a configuration, when the position changes, the rotating Rotors do not have any precession effects, since the precession effects of the counter-rotating rotors compensate for each other. An alignment of the rotors in the prevailing Wind direction by corresponding position control of the float or by acting on the rotors Acting alignment devices, for example on the rotors-bearing scaffolds mounted on the floats Attached control flaps can therefore be implemented quickly and easily.

In the wind power plant according to the invention, rotors can be of the most varied Design and mode of operation are used, for example propellers or frontal flow Impellers with a tangential flow or rotating cylinders designed as 3? lettner rotors with a Magnus effect.

A particularly advantageous combination of rotors and power generator is achieved in that two Coaxial and coplanar counter-rotating rotors are used, each of which revolves around a circumference with a plurality is occupied by poles, which cooperate with opposing poles on a circumference of the respective other rotor. In this way, the counter-rotating rotors form the relatively rotatable parts of a power generator. With this construction, a large amount of electricity can be generated with low weight in an aerodynamically extremely favorable way.

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A favorable development of the wind power plant according to the invention is also given by the fact that the float has an articulated connection with three degrees of freedom, (Cardan joint) is coupled to the I-chair line. Such a coupling ensures that the float is controlled to the desired position without opposing external forces can. The articulation of the float on the rope (s) is of course to be carried out in such a way that that the center of gravity is taken into account. For example, a linkage can be used for elongated floats be relevant in front of the center of gravity, or a linkage in the center of gravity. If only the rope itself has a low torsional stiffness, it ensures a twistable it about its axis, so that then under certain circumstances on the formation of a special joint with three degrees of freedom can be dispensed with and a linkage of the float on the shackle line at a tilting joint running transversely to the shackle line axis produces the same effect.

A further embodiment of a wind power plant according to the invention can be given in that the float over several shackles is held in place. In this way it can be achieved that the float is held essentially at a certain point above the ground. It is also possible to use a float to be tied with several cords in such a way that it is always held horizontally in a parallel guide; but can be moved to different altitudes.

A favorable embodiment of a wind power plant according to the invention is also given by the fact that at least one device for alignment and holding on the float in a desired position, e.g. elevator,

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Rudder, control flaps, is provided. Kit help such Alignment devices make it possible to hold the tied float in a certain position. For example this can be done with the help of oars, which use the passing wind to lift the float Press in the desired position. The rudders can be coupled to control devices and are adjustable be. But it is also possible to set the rudder in certain positions and in this way force effects to position the float on this. The rudder or control flaps can be on the float be attached themselves, they can also be attached to the float "extension frames to be attached to to be able to generate greater leverage in this way.

An advantageous embodiment of a wind power plant according to the invention is also given that the rotor or rotors in their position relative to the float or the Floats are arranged invariably. In this embodiment, when the position changes, the Float also determines the position of the rotor assembly relative to the wind direction. It is thus with this configuration possible, by controlling the position of the float, the position of the rotor arrangement relative to the wind direction steer. This configuration also results in a compact structure.

Another favorable embodiment of an inventive Wind power machine is given by the fact that the rotors in ... their position to each other invariable, but relative to Float or the float can be changed on this or attached to it, for example articulated with a gimbal, are. With this configuration, the position of the rotor

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arrangement independent of the position of the float will. It is therefore possible, under certain circumstances, to dispense with position control for the float entirely and design it as a simple balloon, for example. The position control of the rotor assembly is in to carry out such a case by means of an alignment device which acts directly on the rotor assembly.

A favorable design of the above-mentioned configuration of the wind power plant according to the invention is thereby achieved achieved that the rotor or rotors with a device for aligning in the wind direction and holding a desired position, for example elevators, rudders, control flaps, wind vanes, are coupled. Such Control devices can be attached, for example, to support frames in which the rotor arrangement is mounted and which in turn are hinged to the float or floats. The guidelines For example, rudder and / or elevator can be designed as pivotable flaps that depend on the rotor arrangement from a control device using the wind forces in the direction of the wind.

In the case of the wind power plant according to the invention, there are a large number of Design options given. As mentioned earlier, the float can be simpler in some cases Be designed balloon that has no rigid shell, but its shape only under the internal pressure of the filling gas and the assumes the pressure prevailing in the atmosphere. The articulation of a rotor arrangement on such a balloon can, for example take place by means of a net-like cover, which over

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the balloon is placed and at its lower edge carries a hinge device to which the rotor assembly is hinged is. The attachment of the joint to the balloon can be done in a similar way to the passenger basket usual gas balloons. But it is also possible to give the float a non-changing shape, for example a rigid shell to give and to design this shape according to the aerodynamic requirements. For example The shape of the float can be similar to the known zeppelins of elongated teardrop shape. It however, it can also be advantageous to make the float disc-shaped or mushroom-shaped. The float can be made up of a number of hollow chambers arranged separate hollow chambers be formed. Of course, it is also possible to have several floats to be coupled with each other, for example by means of connecting struts or a connecting frame.

A favorable configuration of a float of a wind power plant according to the invention can thereby be achieved be that a float is designed as a hub body arranged coaxially to the rotor or rotors In such a configuration, the float can be aerodynamically particularly favorable in the center of the axis of a rotor or two coplanar coaxial rotors are arranged, the storage of the rotor or rotors within the float can be arranged and, if necessary, the power generator and control devices housed in the float can be.

Another favorable embodiment can be achieved in that a float is used as the rotor or rotors concentrically enclosing ring jacket is formed.

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Such a design can be a considerable increase the effectiveness of the rotors by guiding the wind flow. Of course, such a Ring jacket floats can also be used in conjunction with a central hub-shaped float.

Another favorable embodiment of a wind power plant according to the invention can be achieved in that a float is designed as an aerodynamic wing. In With this configuration, it is possible, in the case of the tied float, to add one through the float flowing past To use wind generated aerodynamic lift and in this way to increase the aerostatic lift forces. Such an aerofoil-like float behaves in a tied state similar to one on a tether hanging kite. By appropriate shaping of the wing-like float and, if necessary by arranging control flaps, very precise control of the position of the float can also be achieved.

In the following, exemplary embodiments of the invention are described in connection with the drawing. Show it:

1 shows a first embodiment of a wind power plant according to the invention in longitudinal section,

Fig. 2 is an overall view of the embodiment of FIG. Λ, in still further reduced scale,

3 shows a wind power plant according to a second exemplary embodiment in a perspective view, partly schematized,

• i

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5 ¹ 12. 4- a v / ind> raftwerk according to the invention according to a third embodiment in a perspective view, partly schematized,

FIG. 5 shows a view of the exemplary embodiment according to FIG. 4 of below,

6 shows a view of the embodiment according to FIG in front,

7 shows a wind power plant according to the invention according to a fourth embodiment in longitudinal section, partly schematized,

8 shows a wind power plant according to the invention according to a fifth exemplary embodiment in a front view, partly in section,

9 shows a plan view of the exemplary embodiment according to Fig. 8, partly in horizontal section,

10 shows a cross section through the embodiment according to Fig. 8,

11 shows a wind power plant according to the invention according to a sixth embodiment in side view,

12 is a front view of the embodiment according to 11, partially in section,

13 shows a longitudinal section through an inventive Wind power plant according to a seventh embodiment,

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Pig.14 is a view of the embodiment according to FIG below,

Pig.15 is a view of the embodiment according to Pig.13 of rear,

Pig.16 a view of the embodiment according to Pig.13 of in front,

Pig.17 is a schematic perspective illustration of an inventive Wind power plant according to an eighth embodiment,

Pig.18 is a schematic perspective view of an inventive Wind power plant according to a ninth embodiment.

A first exemplary embodiment of the wind power plant is shown in Pig. 1 and 2. In this embodiment, two coaxial and coplanar rotors 1 and 2 are rotatably mounted in opposite directions about a shaft. The shaft is thickened in the middle part and designed as a hollow drum and carries on its outer circumference a plurality of poles 4 provided with electrical conductor windings, which are arranged distributed on the circumference of the drum. Each of the two rotors 1 and 2 consist of a rotor blade ring which üe on struts 6 and 7 »<each extend to both sides of the rotor main plane within the respective rotor blade ring, is attached. The struts 6 of the outer rotor 1 overlap the inner rotor 2 and are attached directly to the shaft at their inner ends. The struts 7 of the inner rotor. 2 are connected at their ends to bearing bushes which are rotatably mounted on the shaft. This structure of the rotors ensures a very low weight with high dimensional stability. On the inner circumference of the inner rotor 2, a number of permanent magnet poles 5 »cLLe cooperate with the poles of the drum, which in turn are non-rotatably connected to the outer rotor 1. As a result of this arrangement, the two rotors 1 and 2 rotating in opposite directions form the parts of an electricity generator 3 that can rotate relative to one another. The rotors 1 and 2, which rotate in opposite directions, are angular momentum balanced

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and compensate each other in their gyroscopic effect, so that no Kreiselmoiaente occur at the end points of the common shaft even if a change in position of the entire system should be done.

The shaft on which rotors 1 and 2 are mounted

is rotatably mounted at both ends in a frame structure 8 of a float 9. The float has an elongated aerodynamically favorable shape with a circular cross-section and is designed so that it forms a hub body in the center of the rotors 1 and 2. The floating body 9 has in its interior a number of cavities which are filled with a gas that is lighter than air, for example with helium.

Around the outer circumference of the outer rotor 1 there is an annular float at a small radial distance 10 arranged, which is designed as a gas-filled hollow body. This circular ring body 10 is by means of struts 11, which overlap the pair of rotors 1, 2 on both sides, rigidly connected to the frame 8 of the floating body 9. The floats 9 and 10 form an aerostatic float system, whose buoyancy is both the dead weight of the floats and the weight of the rotors, des Generator and other facilities. The float 10 also has the function of guiding the flow to generate a "tunnel flow" of the Wind through the two rotors. In this way, the efficiency of the two rotors is greatly improved. in the the rotors themselves also have closed rings on their inner and outer circumferences through which the flow passes and their effect is improved. In the lower area of the outer circumference of the float 10 is a three-axis Cardan joint 12 attached to which a group of four tether lines 13 are attached. The lower ends of this

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Shackles are in turn attached to a rope 14, which allows rotation about a third axis (vertical axis) and is in turn attached to a heavy anchor body 15. This anchor body 15, which is designed hemispherical, can be viewed as a heavy weight resting on a base plate, anchoring the entire system on the ground and allowing mobility in all directions. The weight of the body 15 is so great that it is reliably prevented from being pulled up by the floating bodies 9 vend 10. In Fig. 1, the shackles 13 are drawn interrupted because of the large hate rod. In Fig. 2, the entire arrangement is shown again on a small scale. From Fig. 2 it can also be seen that on the hub-shaped central floating body 9 at the rear end control surfaces 16 and 17 'which act as rudders or elevators, can be attached. By means of these control surfaces, the float system 9? 10 and the rotors 1 and 2 connected therewith in a position corresponding to the prevailing wind direction, the wind itself ensuring that the rotors are aligned in the wind direction. By means of the joints 12 and 14, it is ensured that the position of the floats and the rotors can be adjusted without being influenced by the direction in which the rope 13 is pulled.

The current generated in the current generator 3 can be generated by means of a current line, of which only the beginning 18 is shown in FIG.

*. -, ι 4. · α.if necessary via.slip ring contacts _. , represents xst, / to be lexted to the Srdöoden? The current extension can, for example, be guided along one of the struts 11 and further along one of the tether lines 13. Under certain circumstances, it is also possible to design one of the struts 11 and one of the shackle lines 13 as a current conductor. The electricity can be fed to a consumption station on the ground.

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In Fig. 3, a second exemplary embodiment of a wind power plant according to the invention is shown. In this embodiment, the sole has an elongated teardrop shape similar to that of a zeppelin. The float can be constructed from a rigid strut structure containing a number of gas-filled chambers. The float has a circular cross-section. In the front and in the rear area of the float, a rotor pair each with two opposing coaxial and coplanar rotors is arranged coaxially. In each of these rotor pairs, the gyroscopic effect is compensated to the outside. Both rotor pairs are mounted on the float in such a way that they do not change their position relative to it. The rotor pairs drive a current generator, not shown for reasons of clarity. The construction can be similar in detail to that based on the I ¹ Xg. 1 described construction be formed.

In this exemplary embodiment, the position is controlled of the float and thus also the alignment of the rotors with respect to the wind direction by means of the end part of the Float arranged elevator and rudder, which by means of a, for reasons of clarity, not shown, are pivotable control device arranged in the interior of the float. The float is on its front end via a universal joint at the upper end of an IT chair line, which is also used for reasons of clarity is not shown, appended. The rope is at its lower end on a, also not shown, "Anchoring attached to the ground. By attaching the front end of the float to the rope causes the float to be automatically aligned in the direction of the wind by the wind. The fettering

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Leash can also be used to support the body of the loom and thus the entire v / ind power plant from one place to haul another. For this purpose, the rope is attached to a correspondingly heavy earth vehicle with her to attach the lower end. In this way you can, a carry out simple and cheap transport of the entire wind power plant from one location to another. Even, With this wind power farm, the electricity generated can be supplied via a line, not shown, along the shackle line to be passed down.

In the S ¹ Ig. 4 to 6 show a further exemplary embodiment of the wind power plant. In this exemplary embodiment, three floating bodies 19, 20 and 21 are arranged parallel to one another and connected to one another via a frame 22. A pair of coplanar counter-rotating rotors 23, 24 and 23 ', 24' is mounted on these floating bodies coaxially to each of the floats 20 and 21. The storage and construction of the rotor arrangement in detail can again be designed in a manner analogous to that discussed with reference to FIG. 1. In this embodiment, each pair of rotors 23, 24 or 23 ', 24' drives a current generator. The electricity generated in these generators is led down to the ground via lines that run down along the shackle line with which the entire wind power plant is anchored to the ground. This fetter line is with its upper end in the center of gravity. of the entire wind power plant articulated on the underside of the same, namely at the point 25 shown in FIGS. 5 and 6. The articulation takes place by means of a cardan joint which enables the wind power exverks to be moved in all directions relative to the ground. The position of the wind power plant relative to the wind direction takes place by means of elevators 26 and rudders 27, which are at the rear ends

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the float 20 and 21 are attached and by means of not shown, arranged in the interior of the float Control devices are adjustable.

In Fig. 7 is a further embodiment of a wind power plant shown in longitudinal section. In this wind power plant there are again two coaxial, coplanar counter-rotating ones Rotors 28 and 29 rotatably mounted on a common shaft 30. The ends of the shaft 30 are in a frame 31 an elongated floating body 32 attached with a circular cross-section. In this exemplary embodiment, the rotor blade rings are of the rotors 28 and 29 in turn via struts 33 and 34, respectively, running on both sides of the main rotor plane connected to the bushings of the shaft 30 enclosing bearings. The bearing bushes of the outer rotor 28 are connected to one another and form a body of rotation the outer circumference of which is provided with electrical line windings Poles are arranged. Opposite these poles 29 permanent magnet poles are provided on the inner circumference of the inner rotor. When the rotors 28 and 29 revolve, the poles connected to the respective - ^ otor run in opposite directions so that the rotors 28 and 29 form the relatively rotatable parts of an electricity generator. That way The electricity generated can be via lines 35, which are only shown schematically, via sliding contacts 36 and further via lines not shown Power lines that lead along a shackle of the device to the ground, a consumption unit are fed to the ground.

As can be seen from Fig. 7, in this embodiment of the wind power plant at the front and at the rear end of the float 32 each have a tether 37 and 38 attached. The float 32, containing a number of gas-filled cavities in one

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held in a certain position above the ground. One alignment opposite to the prevailing wind direction only possible within relatively narrow limits or by adjusting the anchoring on the ground, but on the other hand is the Structure of this embodiment of the wind power plant very simple and especially for use in areas with largely suitable for constant wind direction.

Another embodiment of the wind power plant is shown. 8 to 10 shown. As can be seen in particular from the sectional view in FIG. 9, a pair of coaxial, coplanar counter-rotating rotors 39 and 40 are rotatably mounted about a common shaft 41. The rotors carry magnetic poles and form the opposing parts of a StroI / ⁿ H ^a ££ 5 £ e £ iie-n, the structure of this rotor arrangement and the current generator is analogous to that described with reference to FIG. 7, so that reference is made to the statements there can. As can be seen from Fig. And 10, the shaft 4-1 is mounted with its front and its rear end on a ring 4-3, which in turn at diametrically opposite points via stub axles on a ring 44 around a perpendicular to the shaft 4-1 Axis is rotatably mounted. The ring 44 is in turn pivotably mounted at diametrically opposite points by means of stub axles on two floating bodies 45 and 46 about an axis running perpendicular to the shaft 41 and to the pivot axis of the ring 43 or the ring 44. The two floating bodies 45 and 46 are rigidly connected to one another via a frame 47. It can be seen from the foregoing that in this exemplary embodiment the rotors 39 and 40 are mounted in a cardanic manner relative to the floating bodies 45 and 46 so as to be pivotable about three mutually perpendicular axes.

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In this exemplary embodiment, the ring can also be 4-4 in addition be designed as a float for the floats 4-5 and 4-6, which not only contributes to the flow control, but also the aerostatic buoyancy of the wind power plant increased.

Like from 2? Ig. 8 can be seen, are attached to the undersides of the floats 4-5 and 4-6 shackles 4-8 and 4-8 ', which are brought together with their lower ends at a joint 4-9. At the joint 4-9 engages the upper end of a second tether 50, which with its lower end m an anchoring weight, for example one in Pig. anchoring weight shown, is hinged. To compensate for the weight of the tether 50, an additional float 51 is attached to it.

At the rear of the frame 4-7 are used as control devices Elevator 52 and rudder 53 attached, the adjustable by means of a control device (not shown) and by means of which the floats can be brought into a certain position in relation to the wind. at This wind power plant is because of the triaxial cardanic mounting of the rotor pair 39 * 4-0 on the float additional setting of the rotor system possible independently of the float. For this purpose, for example Electric servomotors are used, which act on the various axes of the rotor bearing and thus a Allow setting of the rotors in the wind direction in a sensitive way.

In this exemplary embodiment, too, the electricity generated is routed to the ground via collecting lines and sliding contacts, whereby the electrical lines can in turn be routed along the shackles. From übersichtlichkeitsgründea are the Sa m melleitungen, the sliding contacts and the motor valve

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gates as well as control devices housed in the ochwee bodies not shown in the drawing.

11 and 12 is an embodiment of the wind power plant shown in side view and in front view, in which a disk-shaped float 54- on its underside on a strut frame 55 two pairs of rotors, each consisting of counter-rotating coplanar rotors 56,57 and 56 ', 57', respectively. Training Each of these rotor pairs can either according to the structure shown in FIG. 1 or according to that in FIG shown structure.

The float 54- as a strut frame with a multitude can be formed by gas-filled hollow chambers contained therein, is on its underside below his The center of gravity is linked to a tether 58 via a connecting strap 59. The rotor pairs are in front of the pivot point seen against the direction of flow, arranged. Behind the point of articulation, viewed in the direction of flow, are lateral. control surfaces 60 and 61 attached. With these control surfaces it is a matter of rigid surfaces that form the float and thus also the rotor pairs attached to it depending on the exposure to the wind in the wind direction. Due to the disc-shaped design of the float 54 · results from the flow an aerodynamic lift due to the wind in addition to the aerostatic lift. '"

The current generated by the rotor pairs is already several times in the above via collecting lines (not shown) explained way to the ground to a consumption station guided. However, it is also possible, for example, to have power-consuming units inside the float 54 itself provide, for example, transmission systems and there the

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Rotors and the associated power generators to consume generated electricity.

In FIGS. 13 to 16, a wind power plant is shown in which a designed as an aerodynamic wing Float 62 is provided. This float has an airfoil profile in its longitudinal section. When viewed from above, the float is designed symmetrically to its longitudinal axis. On the bottom of the floating body 62 extend in the region of the longitudinal center, supports 63 and 64 · downwards, on which struts 65 and 66 two pairs of rotors with counter-rotating coplanars Rotors are stored. The structure and the mode of operation of these rotors can, for example, correspond to the structure in FIG. 1 or in Fig. 7, so that reference can be made to the representations there. Between the porters 63 and 64- is a "connecting strap" below the floating body 62 67 pivotably articulated, the lower end of which is articulated to a tether (not shown) is, which in turn is connected to an anchorage on the ground. In the area of the trailing edge of the float 62 control flaps 68 and 69 are provided on both sides of its longitudinal center, by means of which both an altitude control as well as a roll control of the Float 62 and thus also the rotor pairs take place can. In this wind power plant, the float 62 not only behaves like an aerostatic float but at the same time similar to a kite hanging on a shackle line, which is unified by the incoming wind undergoes aerodynamic lift. By controlling by means of the flaps 68 and 69, the rotors can be in set the wind direction. The electricity generated by the rotors is in turn via a power line (not shown) led to earth.

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In - ^? ig. 17 schematically shows an example of a guide for a wind power plant, in which the float is designed as a simple balloon on which a rotor arrangement is mounted on a frame 70 which is pivotably articulated on the balloon about a horizontal transverse axis 71. The pipe arrangement consists of two coaxially counter-rotating motors which are mounted on a support frame 7? Which in turn is mounted on frame 70 so as to be pivotable about a horizontal axis. The support frame 72 is extended to the rear and carries an aerostatic float 73 _{? At its rear end.} which is used to hold the frame 72 and thus the rotors in a certain position, regardless of the position of the frame 70. The frame 70 is hinged at its lower end to a shackle 7 ^, which in turn via an anchor device to the ground connected is. In this wind power plant, the rotors can be designed analogously to the rotors described with reference to the preceding exemplary embodiments, or else be designed as tangentially loaded impellers or, under certain circumstances, also as Flettner rotors.

In Fig. 18 a further embodiment is shown schematically in which an elongated floating body elevator and rudder control surfaces at its rear end or 77, by means of which it is set in the V / ind direction. At the bottom of the float 75 A three-axis universal joint is attached to which a support frame 78 is articulated. In this support frame 78 is a support frame 79 is mounted pivotably about a horizontal axis 80. On the support frame 79, a pair of rotors is rotatably mounted, which together with the support frame 79 about the axis is tiltable. At the rear end of the support frame 79, an aerostat body 81 is attached, by means of which a certain The position of the support frame 79 and thus of the rotor pair is ensured regardless of the position of the support frame 78.

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In addition, at the rear end of the frame there are 79 height and side control surfaces 82 and 83 are provided, by means of which the rotor pair in the wind direction independently of the position of the float 75 can be made. At the lower end of the support frame 78 this is on one Pesselleine 84 articulated and over this line with a Anchoring connected to the ground. In this embodiment, the setting of the rotors takes place opposite the wind direction is independent of the position of the float 75

The invention is not restricted to the exemplary embodiments described above. For example it is it is also possible to make the floats mushroom-shaped or spherical. Instead of the one shown in detail Rotor constructions can also use tangential impellers or Flettner rotors with the Magnus principle as Find rotors use.

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Claims (12)

Claims J 1. ) Wind power plant with a rotor assembly with at least one rotor coupled to a power generator, a support device for mounting the rotor assembly and power generator and a device for aligning the rotor assembly in the wind direction, characterized in that the support device has at least one aerostatic, its own weight and the Weight of the other devices connected to it, such as rotor assembly, power generator, alignment device carrying float, for example a gas-filled hollow body which is connected to an anchorage on the ground or a floating body at sea via at least one tether. 2. Wind power plant according to claim 1, characterized in that the rotor arrangement consists of at least consists of a pair of coaxially arranged, counter-rotating, angular momentum balanced rotors. 3. Wind power plant according to claim Λ or 2, characterized in that the float is coupled to the shackle line via an articulated connection with three degrees of freedom (universal joint connection). 4-. Wind power plant according to claim 1 or 2, characterized in that the float over several shackles is held in place. 609882/0006 5 wind power plant according to at least one of claims 1-4, characterized in that on the float at least one device for aligning and holding in a desired position, for example Elevator, rudder, control flaps, is provided. 6. Wind power plant according to at least one of claims 1-5, characterized in that the rotor or rotors in their position relative to the float or the floats are arranged invariably. 7 · Wind power plant according to at least one of claims 1-5 _5, characterized in that the position of the rotors cannot be changed to one another, but is attached to the float or floats in a variable manner relative to the float or floats, for example, is gimbaled. 8. Wind power plant according to claim 7 ·> characterized in that the rotor or rotors are coupled to a device for aligning in the wind direction and holding in a desired position, for example elevators, rudders, control flaps, wind vanes. 9. Wind power plant according to at least one of claims 1-ß, characterized in that a float is arranged as being coaxial with the rotor or rotors Hub body is formed. 10. Wind power plant according to at least one of claims 1-9? characterized in that a float is designed as the one or more rotors concentrically enclosing the ring jacket. 609882/0006 11. Wind force b './ Erk according to at least one of claims 1-10, characterized in that a float is designed as aex ⁿ o dynamic wing. 12. Wind power plant according to at least one of claims 1-11, characterized in that .that a number are connected to each other by floats and together form the support device. 609882/0006