| 摘要 |
A flow accelerator of sea currents consists of wings (6) rotatable around a vertical axis, each wing consisting of two half-wings with the axis between them. At the perimeters of the rotation of the wings there are gearwheels, or wheels connected between them by driving belts, which, engaging in pairs and rotating in opposite direction, coordinate the rotation of the wings, connecting these so that they always present the maximum surface, i.e.resistance, to the current (6). A smaller wheel (11) is similarly connected –by a belt (9)- to one of the wheels of the pair and is accelerated analogously to its smaller perimeter. Then the smaller wheel (11) transmits the motion to the larger wheel 11A connected to it, the larger wheel rotating around the same small wheel. As a result, the peripheral velocity of the larger wheel is now much larger than the one it would have if it rotated directly by the current (11, 12, 13). This is possible since apart from the wheels 1 and 2, the motion of the other wheels does not present hydrodynamic resistance since they are flat disks rotating parallel to the current. The procedure is repeated when the last large wheel transmits motion to the another small wheel, which during a new acceleration cycle moves another surrounding large wheel. Similar repeating acceleration cycles are following, until full depletion of the dynamic energy of the current entrapped in the wheels 1 and 2. Finally, the repeating cycles activate –by a final small wheel- an electric generator. The rotations of the wheels may be executed by washers on circular, concentric and parallel pairs of upper and lower monorails. The whole structure allows the maximum possible expansion of the system. The wings which are positioned between superimposed pairs of upper monorails in articulated configuration, are connected between them by an axis (Figure 8, 18), over the upper monorails, so that the wings are rotated in coordination. The wings are rotated along the paths of the single monorails (figure 9, 22) on small wheels 24 positioned at the end of the connecting hooks (figure 9, 23) having a T-shape for better stability (figure 8, 19). By this way these capture not only the kinetic energy, but also the existing potential moment of the current and multiply the final efficiency. Since the ratio between moving parts and surface area of wings is constant, the expansion may be very large and thus the moment will be correspondingly larger, which is obtained analogously to the square of the radius of the wheels. The whole system may be positioned on a fixed frame which is located on a scaffold on the bottom of the sea, and/or on anchored floats depending on the depth.Thermodynamically, the final result is an upgrade of the energy of the sea currents. |
