The power train 2 can in this embodiment be mounted in the power train room 20, so that the power train in whole or partly can be located in a dry environment and thereby be protected against fouling and corrosion and also simpler and cheaper sealing solutions can be used, see FIGS.
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In the case including a buoy, the buoy can comprise a space which functions as an air pocket and in which at least the main part of the driveshaft is mounted as well as other rotating parts, such as winding drums, in the case where such are provided, and couplings between them. In this embodiment where the transmission unit 2 and the driveshaft 11 are placed centrally in the buoy 3 the angular rotation of the buoy can be more efficiently used. In different designs, it can be journalled at the buoy or at the other device.
Dolores Musculares Causas
Such an air pocket can be a space filled with air, which at its bottom is delimited by a water surface and the other sides of which are different surfaces of the buoy. FIG. 2 d is a different sectional view of the wave power plant of FIG. Wave power technology has been developed for a long period of time but up to now it has not been possible to arrive at a method and a design of a wave power plant, where it has been possible to combine the necessary properties as described above. It is therefore to be understood that the appended claims are intended to cover all such modifications and changes as fall within a true spirit and scope of the invention. Accordingly, various modifications may be made without departing from the spirit or scope of the general inventive concept as defined by the appended claims and their equivalents.
RELATED APPLICATIONS This application claims priority and benefit from Swedish patent application No. Advantages of this method include that the disengagement mechanism can manage higher transferred torques, a low energy consumption only during transition states and a minimum of mechanical wear in the disengagement operation. A planetary gear 35 as described above provides a high fixed gear ratio, can manage very high input torques and has a good efficiency. The generator should manage a peak rotation speed that is at least 50% higher than the nominal rotation speed. When the driveshaft is rotating faster than the rotational speed in the generator, the counterweight drum is rotated in a first rotation direction, this causing the counterweight to be hoisted up to, accumulating potential energy. When the buoy 3 rises, the anchor drum 9 and the driveshaft 11 are rotated as described above in the first rotation direction, by the anchor drum hooking on to the driveshaft by means of this anti-reverse mechanism 51. When the buoy 3 sinks, the anti-reverse mechanism of the anchor drum 9 is released and the anchor drum 9 can be reversed, rotating in the opposite rotation direction, to wind the anchor line 7, as will be described below, while the driveshaft 11 is blocked from rotating in the opposite rotation direction by another anti-reverse mechanism 53, which is acting between the driveshaft and the support bar 13 and which is herein called the anti-reverse mechanism of the shaft support bar.
The anchor drum 9 is rotated, due to the coupling with the anchor line 7, in a first direction when the water surface 6 rises, and is then locked to the driveshaft 11 which is thereby rotated by the anchor drum. FIG. Como quitar el dolor de un desgarro muscular . 16 c is a diagram illustrating a control rule for compensating for varying accelerations and decelerations of a counterweight using the sliding clutch of the mechanism for reverse feeding. FIG. 2 f, a shaft for reverse feeding or a link shaft 58 is provided. A number of buoys are by lines connected to counterweights and the lines pass around the common driveshaft for driving it only when the respective buoy has an upward movement. Service of the transmission, generator and electronic circuits of the wave power plant can then be performed ashore. Then, the line 7 of the anchor drum is unwound and the driveshaft 11 starts to rotate and drive the generator/generators 21. The control system controls for maximum power and thereby the falling speed of the bottom foundation 5 is reduced as much as possible by the electrical power that is produced.
The control system can from these values calculate when the bottom foundation 5 starts to approach the bottom 8. To reduce the force of impact the falling speed of the bottom foundation is reduced by the sliding clutch 25 for reverse feeding. Thereafter the control system releases hitches, not shown, that hold the counterweight 19 and the bottom foundation 5, so that the bottom foundation starts to fall towards the bottom 8 of the water pool.
The absorption level varies according to the momentary movement and the momentary movement direction of the wave. The gearwheels 27 and 29 are connected to the input and output shafts of the sliding clutch 25 and their sizes in relation to the gearwheels 31, 33 at each respective winding drum are adapted to provide sufficiently high gear ratios for the rotation speed of the anchor drum 9 to be sufficient to wind the anchor line 7 fast enough to keep it tense, when the buoy 3 is sinking with its highest velocity.
Hereby, the first and second parts of the electric generator are made to continue to rotate in the same first direction in relation to each other also in this case. Attempts have been made to reverse the rotation direction, so that an electric generator driven by the anchor wheel is driven by the counterweight in the same direction also when the wave sinks. The reverse feeding of the anchor drums is also accomplished in the same way from the counterweight drum 15 via the gear ring 29 and a toothed belt/chain 175 to the link shaft 58, which in turn is coupled in the corresponding way to the anchor drums 9 v and 9 h. 8 d and 8 e.
Furthermore, the cross bar 221 can be designed to carry the load of itself and the undivided anchor line 7, this resulting in that a lower force is required for driving the reverse feeding, not shown in these figures. In this embodiment, the transmission of power between the driveshaft 11′, 11″ and the link shaft 58 can advantageously be obtained via gearwheels 209. A high gear ratio as shown in the figure is used to increase the rotation speed of the link shaft and to reduce the torque, this resulting in less wear and smaller dimensions of the power transmission. According to FIG. 15 f the stator 21″ of the generator is rigidly attached to the buoy 3 in a way corresponding to that shown in FIG. FIG. Estiramientos para aliviar dolor lumbar . 8 e is a side view of the wind power plant of FIG. In a wave power plant energy from water waves in a pool of water is, during parts of the movements of the water waves, absorbed for driving an electric generator, the term “pool of water” herein taken to include any body or mass of water.
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An algorithm calculates if the counterweight span has a tendency to drift upwards or downwards by analysing the direction changing points during a time period. Due to the winding of the counterweight line 17 around the counterweight drum 15 during the forward feeding of the driveshaft 11, a relatively constant motive force or a relatively constant torque acting on the driveshaft 11 is achieved, which through the connection between the rotor 21′ and the stator 21″ of the generator 21 drives the generator to rotate and generate electric current. In a device, as described above, using a driving bar, wire or chain, which is secured to the bottom of the sea or in a frame structure and which runs along or over an anchor wheel journalled in a buoy, this problem can be solved in the following way.
One method of using the vertical movements comprises a buoy having a bottom foundation and an anchor wheel. The fact that no counterweight is used gives a lower moving weight and thereby the bottom foundation 5 can also be made smaller, i.e. A first elongated means, which both is connected to a device arranged to counteract the movements of the water in the pool of water, for example a fixed point at the bottom of the pool of water or a body having a relatively large mass or weight, or to the buoy, respectively, depending on the place where the driveshaft is mounted, and is connected to the driveshaft. 5 e and 5 f. In the published French patent application 2339071 a buoy is used, which is connected to one end of a chain and by the chain drives a driveshaft placed above the water surface to rotate.
When the water surface at the buoy sinks, the driveshaft is locked from rotating backwards in the opposite direction by anti-reverse mechanisms 53 arranged in the shaft support bars 13, see FIGS. The function of the wave power plant 1 is advantageously controlled by a computerized control system, not shown, that in particular controls the level of the counterweight span and compensates for varying accelerations and retardations of the counterweight in order to achieve a power level that is as equalized as possible in relation to the current wave climate. FIG. 15 d is a side view of the wave power plant of FIG. The storage of energy is stopped automatically when “the accumulator is full” and it can be achieved without reducing the generated power. Paracetamol para dolor de espalda . Several revolutions of the anchor line can be wound around the anchor drum and hence the anchor drum has no technical limitations for wave heights that the installation can handle.