WO2017068515A1

WO2017068515A1 - System of balancing a floating impeller and use thereof

Info

Publication number: WO2017068515A1
Application number: PCT/IB2016/056293
Authority: WO
Inventors: Vladimír MÜLLER
Original assignee: Müller Vladimír
Priority date: 2015-10-19
Filing date: 2016-10-19
Publication date: 2017-04-27
Also published as: WO2017068515A4

Abstract

System has a power generator (3) slidably placed against the horizontal shaft (2) inside the floating impeller (1). The horizontal shaft (2) captures the moment reaction of the power generator (3). Inside the floating impeller (1) there is a mechanism (5) of sliding of the power generator (3), whereby the gear mechanism (4) which transfers the impeller's rotation to the generator's (3) rotor is adjusted for the sliding of the power generator (3) in the direction alongside the axis of rotation. In a preferable arrangement there is a multi-position angular lock (11) between the horizontal shaft (2) and the hinge of the power generator (3); this lock (11) can release the rotational bond between the power generator (3) and horizontal shaft (2); this causes the power generator (3) to descend into lowest position. This process can be simplified by the clutch between pinion (8) and power generator's (3) rotor. The system of balancing can be used to alter the hydrodynamic effectiveness of the floating impeller (1), to stop the impeller (1), to change its rotations or to stabilize it during the movement caused by outside influence.

Description

SYSTEM OF BALANCING A FLOATING IMPELLER AND USE THEREOF

Field of technology

Technical solutions concerns a system for balancing of the floating impeller, which is used for the transformation of the energy of the flowing water. The system of balancing allows to change the position of the center of gravity of the floating impeller linearly through the axis of rotation of the floating impeller and it eventually allows to change the angular position of the center of gravity. The technical solution also discloses new uses of the system of balancing for the direction of the functioning of the power device with the floating impeller.

Prior state of the art

With the increase in the usage of the renewable energy sources there is also an increase in the number of small hydroelectric power plants which use the impeller with horizontal axis of rotation for the transformation of the energy from the flowing water. Such devices do not require the construction of dams, which will not be ecological and which will harm the environmental subsystem. Stably placed impellers with horizontal axis of rotation, such as according to EP181 1 170A2, CZ19339 (U1 ), can be used without dams, too; however, the stable placement requires an adjustment of the flow and other construction interventions to the nature. This issue is solved by floating impellers which can be placed in various positions within the width of the water flow and which can be easily moved if need arises.

Floating impellers can be carried on pontoons or boats at the sides of the impellers, as it is known for example from the publications DE4325122A1 , DE202007013855U1 , DE10253998, WO2004109098. Carrying pontoons or boats lower the energetic effectiveness of the devices; they decrease the flow width and take up too much space. This issue has been solved by the arrangement according to SK UV 5361 , which uses an impeller which is itself floating and therefore does not have to be carried by other floating bodies on its sides. The independently floating impeller is attached to the shore or bank by means of a pair of arms, which allow for floating and rotation of the floating impeller at various heights above the water level. Such placement is, however, sensitive to the position of the center of gravity of the floating impeller, which basically behaves as a vessel with corresponding displacement. Such technical solution is desired and not known which will allow to simply set the suitable position of the center of gravity of the floating impeller and therefore simplify its direction in the flow. Such solution concerning balancing should be usable with other floating impellers, too, which are carried by the floating vessels on their sides, if they have a machine room or at least its part placed inside the floating impeller similarly as in case of the independent floating impeller according to SK UV 5361 . When balancing the vessels, chambers being filled up with water are commonly used. Such solution is used with the floating impeller according to DE202007013855U1 ; this solution is, however, unacceptable in case of an independent floating impeller, since this impeller cannot be filled with water, or - alternatively - it can be filled with water only with great difficulties, since machine room cannot be exposed to the effects of the water.

Essence of the invention

Abovementioned deficiencies are significantly remedied by a system of balancing of a floating impeller with an axis of rotation around the horizontal shaft, which at least partially traverses through the body of the floating impeller; where there is a power generator and a gear mechanism for the transfer of the rotation of the impeller to the power generator placed inside the floating impeller; whereby the horizontal shaft captures the moment reaction of the box of the power generator according to this technical solution which essence lies in the fact that the power generator is placed on the shaft slidably in the direction of the axis of the shaft. Inside of the floating impeller involves a mechanism for the sliding of the power generator. The gear mechanism for the transfer of the rotation of the impeller to the power generator is adjusted for the sliding of the generator inside the floating impeller.

The horizontal shaft is a conductive element which is freely - or on both sides - attached in the arm or in the arms, respectively. The arms capture the reaction from the resistance of the floating impeller and anchor a set position in the water flow. The term ..horizontal" in this document denotes a predominant orientation of the axis of the rotation of the floating impeller; it does not have to be exactly horizontal position - as we will explain, the angular position of an axis of rotation can be intentionally tilted out of the horizontal position. The horizontal shaft therefore denotes a shaft defining the axis of rotation of the floating impeller, regardless of its exact angular position. The horizontal shaft will be usually, but not necessarily, produced as hollow or partially hollow, so that the wiring connecting the machine room with the outside devices can run through the inside of the shaft. Power generator will be mainly, but not exclusively, an electric power generator, that is, an alternator, dynamo or other electrodynamic machine. It can also be a generator of a hydraulic oil, for example a hydrostatic or hydrodynamic pump. Power generator in this document denotes any at least partially mechanical machine which transfers the rotational mechanic energy to other form of energy. The term power generator is therefore used as a commonly known term of the art, even if it is a machine which only converts one energy to another instead of producing an energy.

Power generator is connected with the horizontal shaft by its outer box or casing, which captures the force moment from the outer casing of the power generator. Without capturing this reaction there could be an over-rotation of the whole inside of the floating impeller - depending on the regime and weight of the power generator - which is obviously undesirable. In the solution according to this technical solution the power generator is connected to the horizontal shaft in such a way that the power generator cannot over-rotate relative to the horizontal shaft, but it can slide. Power generator is very solid and massive, usually the heaviest part of the inside of the floating impeller. In this technical solution it is precisely the generator which is used to transfer the center of gravity alongside the axis of rotation.

The technical solution can be used with all impellers with the power generator inside; that is, the floating impeller does not have to be necessarily independent.

The slide of the power generator alongside the axis of rotation can be adjustable to various degrees. It would be preferable if the scope of the adjustment would correspond at least to a tenth of the length of the floating impeller, preferably a fifth of the length of the floating impeller, especially preferable to half of the length of the floating impeller.

The gear mechanism for a transfer of the rotation of the impeller to the power generator can be adjusted for the sliding of the generator by means of various construction arrangements pursuant to the particular gear which is used. Usually a slide is used which lacks degrees, which is continuous and gradual, and which does not interrupt the transfer of the torque from the floating impeller to the power generator.

One type of gear (i.e. epicyclical gear or planetary gear) can consist of a ring with internal teeth and a pinion. The ring is coaxially attached to the body of the floating impeller and the pinion transfers the rotation to the rotor of the power generator - directly or through a gear box (or gearing). In such case the ring can be attached to a body of the floating impeller slidably, as if through grooved shaft, where the grooves are substituted by at least three lead rods, preferably by six lead rods. Since the moment of force is transferred on a high diameter, the load of the lead rods will be small. In order to avoid the sticking of the ring, the ring can have guiding rails or guiding pipes. In such arrangement the pinion will have side guiding fronts with a diameter that is bigger than then outer diameter of the tooth system, and the ring will be led between these fronts. The sliding of the power generator induces a movement of the pinion which will then move the ring, too. With similar principle, but with interchanged kinematic pair, a grooved shaft can be used, whereby this shaft telescopically connects the stably placed pinion falling into a ring with a rotor of the power generator. The telescopic shaft has an inner shaft with an outer grooves which fall into the inner teething of the outer hollow shaft. In this construction the ring will be placed outside the middle zone of the inside of the floating impeller, usually on its edge, so it does not interfere with the sliding of the generator. The grooved shaft can have a construction which is similar to the construction of the front driving axles of the vehicles. In case the grooved shaft is used with joints, the axis of the generator or gearing, respectively, can be outside the axis of the pinion. In order to achieve the rotational coupling of the floating impeller with a generator during its sliding, other mechanical arrangement can be used; particular gear can be designed by a person skilled in the art without inventive effort. For example, a gear can consist of a solid ring, which has large width of the teething, whereby this width defines a scope of possible sliding. Such ring can be effectively produced by shaping of the sheet of metal into evolvent trapezes and then by rounding them into a ring, so that the chip machining on a large scale is avoided. The teethed ring then spreads on the surface of the cylindrical inside and the pinion falls into the teething of the ring anywhere on its width according to the adjustable position of the power generator.

In another arrangement the gear mechanism can involve a planetary gear, where the driving carrier with the planetary rings is connected with the rotor of the power generator. The power generator can have a hollow shaft of the rotor; in such case the whole power generator will be on the horizontal shaft, where it can slide, too.

The mechanism of the sliding of the generator can have various forms; the mechanism of the sliding can be mechanical - for example, functioning by means of a threaded rod or by means of ropes or by means of arms or by means of teethed rack and so on. The mechanism can also be electric, electro mechanic, hydraulic, electrohydraulic or combined. It is preferable if the mechanism of the sliding is adjusted for the remote control and involves a sensor of the longitudinal position of the power generator. The datum concerning the longitudinal position can be used during the automatic control of the balancing, or it can be transferred to the remote center which monitors and controls the device with the floating impeller.

It is not only a power generator, but also the other parts of the machine room - for example, a gear or a switchboard cabinet and so on - which can be part of the slidable body inside the floating impeller. These parts of the machine room - or machine room as such, respectively - can be placed on the common frame, which is placed on the horizontal shaft.

Floating impeller with the balancing system according to this technical solution can change its position alongside the axis of rotation. This causes the sloping of the floating impeller.

The system of balancing can be used during the installation already, when a fine adjustment of the sliding surface of the power generator can set an exact horizontal position of the floating impeller. The slope has important influence on the hydrodynamic effectiveness of the device. The altering slope of the floating impeller can compensate the effects of the side waves, for example an effect of a side wave of a motor boat driving alongside the device. Most often, the floating impeller will be used to create an electric energy - therefore the generator will be an electric power generator. This bring about a relatively heavy generator, since the threads on the winding are made from copper and copper is heavy. Thanks to this we have a heavy body with small outer dimensions available, which is preferable for the high level of the adjustability of the position of the center of the gravity.

Change of the center of gravity of the floating impeller is preferable during the changes of the water flow at the place of the anchoring of the device, for example during the floods, rain torrents and so on.

The system of balancing can be in a preferable arrangement supplied by a mechanical brake (or stop), which brakes, slows or stops the rotation of the floating impeller. It is preferable if the disc brake is used, where the disc is attached to the side front of the floating impeller and the stirrup is attached to the horizontal shaft.

System of balancing allows other operational advantages; it allows to change the hydrodynamic effectiveness and therefore change the rotations of the floating impeller. If the center of gravity is moved to the edge, the floating impeller submerges on the loaded side so much into the water that this can achieve its stopping. Between the moment of stopping and state with the highest hydrodynamic effectiveness a desired regime of work can be achieved. The usage of the balancing system to change the hydrodynamic effectiveness of the floating impeller is new, too. For the particular shape of the vanes there is always the most appropriate depth of the submersion of the floating impeller, which should be achieved alongside the whole width of the floating impeller.

The system of balancing can be adjusted to alter the height of the center of gravity, too. The floating impeller is anchored in the water flow through the swing arm, or two swing arms, respectively, which move upward or downward pursuant to the changes of the height of the water level. When the angle of the arm changes, the angular orientation (or rotation) of the position of the power generator takes place, too. On the figure 5 the power generator is depicted in the lowest position in case of the lowest operation water level. When the water level rises, the angular orientation of the horizontal shaft changes and this alters the rotational position of the power generator which is mounted on the horizontal shaft. Figure 6 depicts a position with the high water level, where the power generator is rotated in such a way that it is lifted to the plane of the axis of the rotation. This significantly affects the stability of the floating impeller. It is precisely during the high water level when it is very probable that various objects flow on the water, such as trunks and so on. In principle, the floating impeller is very resistant against the collision with such alien objects; it takes care of them in such a way that it is lifted and the impeller rolls on the alien object. The collision with the alien body is random: the size of the alien object or place of collision cannot be determined in advance. In every case it is important that the floating impeller is not overturned when "stepping over" the alien body; this danger arises when the sizable alien object flows below the floating impeller on its edge. Despite the rotation and anchoring through the horizontal shaft, the impeller behaves as a vessel and therefore the change of the metacentric height has undesirable effect on its stability. In order to eliminate the undesired effects of the change of the center of gravity relative to the metacenter during the change of the angle of the lead (or guiding) arm - that is, during the change of the water level - the system of balancing of the floating impeller has multi-position angular lock (detent, arrestment) of the deposition of the power generator relative to the horizontal shaft. The angular lock can be advantageously combined with the slidable hinge of the power generator. The hinge can be equipped, for example, by a claw clutch which is mounted on the horizontal shaft and which rotationally connects the shaft with the hinge. After the clutch is released from grip (fig. 8), the power generator can rotate around the shaft if the gear between the ring and the rotor of the power generator is temporarily interrupted; then the power generator descends into lower position by means of its own weight. In that position the claw clutch is activated on the horizontal shaft and subsequently the connection of the ring with the rotor of the power generator is renewed. By means of two simple claw clutches and short-term idle running of the power generator it is possible to achieve the lowest position of the power generator - or whole machine room, respectively - in any position of the slope of the arm. In another arrangement the claw clutch can be used on the horizontal shaft and a lifting device which lifts the power generator with the pinion from the inner teeth of the ring can be used.

It is preferable if the angular lock has limitation of the achievable angle of orientation (or rotation), which would correspond to the maximal value of the tilting of the lead arms. These can tilt pursuant to the water level in 90° at most. The limitation of the freedom of the angular lock ensures that in no regime and neither during the accident the power generator over-rotates randomly around the horizontal shaft, which could damage the device. The angular lock together with the longitudinal slide allows for complex balancing of the floating impeller, while it is not necessary to add any other components to the device, which would increase the outer dimensions of the device and affect its shape; existing components which are necessary for the transformation of the energy of the water flow are the only ones used for balancing.

In order to ensure stable angular position of the machine room an arrangement can be used where the shaft is rotationally placed on the arms and the draw rod running in parallel with the arm captures the moment reaction. This parallelogram rotates the shaft inside the working wheel or impeller against the position of the arm during the change of the water level, and this achieves the same position of the machine room relative to the vertical plane.

New use of the system for balancing of the floating impeller for the purposes of the change of its axis of rotation is also connected with the remedy of the deficiencies in the prior state of the art. The use of the balancing system for regulation of the rotations of the floating impeller is new, too.

Brief description of drawings

Technical solution is further disclosed by means of figures 1 to 9. The used scale of depiction and ratios of sizes of various elements and mechanisms do not have to correspond to the description in the examples and these sizes and ratios of sizes cannot be interpreted as limiting the scope of protection. The particular type of the depicted gears, vanes and other elements is illustrative, too.

Figure 1 is a longitudinal cross-section of the inside of the floating impeller; for the purposes of clarity the vanes are not depicted. Ring is deposited slidably. Figure 2 is a cross-section of the inside of the floating impeller, as seen from the side where the power generator with the gear box are deposited.

Figure 3 depicts a ring with the inner teeth and openings by which it is slidably placed against the cylindrical body of the floating impeller.

Figure 4 is a view of the balancing system with the stable ring and with telescopic grooved shaft between the pinion and power generator. Figures 5 and 6 depict the height position of the power generator at low and high water levels.

Figure 7 depicts a basic principle of the angular lock of the hinge of the power generator with the gear. Figure 8 then depicts an act of release from the hinge in the upper position, while the released generator descends to the lower position.

Figure 9 is an arrangement with the angular positioning of the machine room by means of a draw rod which is led in parallel with the arm.

Examples of realization Example 1

In this example according to figures 1 to 3 the floating impeller 1 is used to produce electric energy in the moderate water flow. It has a hollow horizontal shaft 2 which runs through the whole inside of the floating impeller 1_. The horizontal shaft 2 is connected to two arms _,10 which are tiltably deposited and which anchor the position of the device relative to the shore (or bank) of the water flow. Inside the body of the floating impeller 1 there is an electric power generator 3 with the gear mechanism 4 in form of a gear box, which is screwed directly on the flange of the generator 3. The power generator with the gearing and the box of the primary regulator form in this example a single whole complex of the machine room. This complex is slidably mounted (hung by the hinge) on the horizontal shaft 2; the pipe with the square- shaped cross-section is put on and welded to the shaft 2. The cross-section of the opening in the hinge of the machine room corresponds to this shape. The hinge is thus rotationally connected to the horizontal shaft 2, but it can slide on it. Lubricators through which the lubricant is pushed out to the joint of the hinge with the surface of the pipe enhance this sliding process. The slidable position of the hinge is defined by the mechanism 5 of the sliding; in this example it is formed by the electrically propelled worm gear with the working screw. The mechanism 5 of sliding has an electric sensor of the position of the hinge on the horizontal shaft 2. The datum concerning the position is transferred to the remote central, where the datum concerning the angular position of the floating impeller1 is sent, too.

By rotation the working screw we achieve the movement of the hinge of the generator 3 with the gear box and the pinion 7 alongside the axis of rotation. The pinion 7 has conically sloped side fronts which roll by the sides of the ring 6 and therefore move it. The ring 6 is slidably placed on eight lead rods 8. In this way the torque is transferred from the floating impeller 1 to the ring 6 and then to the pinion 7 and then through the gear box to the rotor of the power generator 3, whereby this transfer of the moment is ensured during the change of the sliding of the position of the power generator 3, too.

The control of the movement by means of an electric propulsion of the mechanism 5 of sliding has two components. The automatic component of the control lies in the fact that in case of the sudden change of the slope - which is detected by the independent position sensor of the floating impeller 1_, which automatically initiates the propulsion of the mechanism 5 of the sliding and the center of gravity changes in the counter-phase with the wave which has caused the change in the slope. The second component of the control has remote character. The personnel in the central monitors multiple devices with the floating impellers 1_. Pursuant to the desired regime the personnel can decide to lower the rotations of the floating impeller 1 and achieve it in such a way that the change of the angle of slope lowers the hydrodynamic effectiveness. Therefore, it does not have to activate mechanical brakes which would overheat during the time and wear unnecessarily.

Example 2

In this example according to figure 4 the ring 6 is fixedly placed at the edge of the floating impeller 1; it is a part of the weldment of the side front. The pinion 7 falls into the inside teeth of the ring 6 and it is carried by the grooved telescopic shaft 9. The pinion 7 has axial bearings on both fronts; one during to sliding leans on the side front, other leans to the flange screwed to the ring 6. Power generator 3 with the gear box is slidably placed in the hinge on the horizontal shaft 2. During the sliding the pinion 7 delimits itself by the side touch and this causes either shortening or prolonging of the grooved telescopic shaft 9.

Example 3

Floating impeller 1. is in this example according to figures 7 and 8 supplied by angular lock 1_1 of the hinge of the power generator 3. The angular lock H is formed as a claw clutch with the angular limitation of the rotation in the scope of 90°. Between the rotor of the power generator 3 and the ring 6 there is a magnetically controlled friction clutch. When the position of the arms Q changes in more than 15° the personnel in the central at time outside the energy peak disconnects the propulsion of the power generator 3 from the friction clutch. Then the personnel disconnects a claw clutch, too, which interrupts the rotational bond between the horizontal shaft 2 and the hinge of the machine room with the power generator 3. The machine room descends by force of its own weight to the lowest position inside the floating impeller 1_. This achieves the low position of the center of gravity and more stable metacentric height.

Example 4

Floating impeller 1 in this example according to figure 9 is placed on the horizontal shaft 2 which is rotationally deposited on the arms 10. The horizontal shaft 2 has short handles - with studs to which the draw rods are connected - distributed by the sides of the arms 1Q. The draw rods are led in parallel with the arms 10 and they have the adjustable screws for the exact setting of the angular position of the machine room. The draw rods capture the moment reaction of the machine room and during the changes of the water level they rotate the horizontal shaft 2 in such a way that the machine room is still in the vertical position, with the generator 3 below the horizontal shaft 2. The draw rods are led and anchored as kinematic parallelogram. The horizontal shaft 2 has hollow circular cross-section and in the part where the machine room with the generator 3 with the gear mechanism slides on it, it has a rod with square-shaped cross-section welded on it, whereby this cross-section ensures the rotational bond of the hinge of the machine room with the horizontal shaft 2.

Industrial applicability

Industrial applicability is obvious. According to this technical solution it is possible industrially and repeatedly produce and use the system for balancing of the floating impeller, mainly the independently floating impeller. List of related symbols- floating impeller

- horizontal shaft

- power generator

- gear mechanism

- mechanism of sliding- ring

- pinion

- lead rod

- grooved telescopic shaft 0- arm

1 - angular lock

Claims

PATE NT CLAI M S

A system of balancing of a floating impeller (1) with an axis of rotation around a horizontal shaft

(2) which at least partially runs through an inside of the floating impeller (1), whereby a power generator

(3) and a gear mechanism

(4) designed to transfer a rotation of the floating impeller (1) to the power generator (3) are placed inside the floating impeller (1), whereby the horizontal shaft (2) captures a moment reaction of the power generator (3), is characterized by the fact, that the power generator (3) is - relative to the horizontal shaft (2) - placed slidably in a direction of the axis of rotation, there is a mechanism

(5) of sliding of the power generator (3) inside the floating impeller (1). whereby the gear mechanism (4) is adjusted for sliding the power generator (3) inside the floating impeller (1 ).

The system of balancing of the floating impeller according to the claim 1 i s characterized by the fact, that a gear box is connected with the slidably placed power generator (3).

The system of balancing of the floating impeller according to the claim 1 or 2 i s characterized by the fact, that the horizontal shaft (2) is at least partially hollow and in a cavity there is a wiring connecting the inside of the floating impeller (1) with an outside environment.

The system of balancing of the floating impeller according to any of the claims 1 to

3 is characterized by the fact, that the gear mechanism (4) includes a ring (6) connected with a body of the floating impeller (1); a pinion (7) falls into inner teeth of the ring (6), whereby the pinion (7) is connected either directly or through a gear box with a rotor of the power generator (3).

4 i s characterized by the fact, that the ring is slidably placed against the body of the floating impeller (1) and the pinion (7) is carried by a box on a side of the power generator (3) and it is axially connected with the ring (6).

6. The system of balancing of the floating impeller according to any of the claims 1 to 4 i s ch aracterized by th e f act, that the ring (6) is fixedly connected with the body of the floating impeller (1) and the pinion (7) is axially connected with the ring (6), whereby the pinion (7) is connected with the side of the power generator (3) by means of a grooved telescopic shaft (9).

7. The system of balancing of the floating impeller according to any of the claims 1 to 6 i s ch aracterized by the f act, that the power generator (3) is electric.

8. The system of balancing of the floating impeller according to any of the claims 1 to 6 i s ch aracterized by the f act, that the power generator (3) is hydraulic or pneumatic.

9. The system of balancing of the floating impeller according to any of the claims 1 to

8 i s ch aracterized by the f act, that a scope of a setting of the sliding of the power generator (3) corresponds to at least tenth of a length of the floating impeller (1 ), preferably at least fifth of the length of the floating impeller (1 ), especially preferably at least half of the length of the floating impeller (1 ).

10. The system of balancing of the floating impeller according to any of the claims 1 to

9 i s ch aracterized by th e f act , that the mechanism (5) of sliding has a working screw which is propelled by a worm gear with an electric propulsion.

11. The system of balancing of the floating impeller according to any of the claims 1 to

10 i s ch aracterized by th e f act, that it includes a sensor of a position of the power generator (3).

12. The system of balancing of the floating impeller according to the claim 11 i s cha racte rized by the f act, that the mechanism (5) of the sliding is connected with a control unit for the automatic sliding of the power generator (3) in a counter-face against a wave.

13. The system of balancing of the floating impeller according to any of the claims 1 to

12 i s ch aracte rized by th e f act, that it has a mechanical brake, preferably a disc brake.

14. The system of balancing of the floating impeller according to any of the claims 1 to

13 i s ch aracterized by the f act, that between the horizontal shaft (2) and a hinge of the power generator (3) there is a multi-position angular lock (11) of the placement of the power generator (3) relative to the horizontal shaft (2).

15. The system of balancing of the floating impeller according to the claim 14 i s characterized by the fact, that the angular lock (11 ) has a form of a claw clutch.

16. The system of balancing of the floating impeller according to the claim 14 or 15 i s characterized by the fact, that the angular lock (11) limits an angle of orientation between two extreme positions; preferably it limits it to 90° at maximum.

17. The system of balancing of the floating impeller according to any of the claims 14 to 16 is characterized by the fact, that an element for an interruption of a transfer of a torque - preferably in form of a clutch - is inserted between the rotor of the power generator (3) and the body of the floating impeller (1).

18. The system of balancing of the floating impeller according to the claim 17 is characterized by the fact, that the clutch is electrically controlled.

19. The system of balancing of the floating impeller according to any of the claims 1 to 13 is characterized by the fact, that the horizontal shaft is placed rotationally in arms (10), whereby a lever is placed at least on one side of the horizontal shaft (2) and a draw rod connected on one end to the lever and on the other end to a basis that carries the arm (10) runs alongside the arm (10), preferably the draw rod is lead in parallel with the arm (10).

20. A use of the system of balancing of the floating impeller (1 ) according to any of the claims 1 to 19 for alteration of a slope of the axis of the rotation of the floating impeller (1 ) relative to a water level of a water flow.

21. The use of the system of balancing of the floating impeller according to the claim 20 for regulation of rotations of the floating impeller (1 ).