The power take-off 8, located in the floating vessel of non-variable buoyancy 113, is preferably mounted on gimbals or similar acting devices 20 (not shown) to allow it and the floating vessel 113 a necessary degree of independent movement. WO 99/28623 PCT/IE98/00101 17 The device, in any marine embodiment, is intended to be located away from the shoreline and outside the zone of impacting breaking waves. 5 Summary of the invention Accordingly the invention provides: an apparatus for harnessing energy from waves or swell in a body of liquid comprising: 10 a buoyant member of variable buoyancy for holding a substantially constant mass of gas in an at least partially submerged position in the body of liquid such that as the volume of the substantially constant mass of gas changes with changes of pressure on said buoyant member caused by wave motion or swelling of the liquid body, a change in buoyancy of the variable body results; 15 and a means for converting forces or changes in forces resulting from said change in buoyancy of the buoyant member to an energy output device.
- Evitadores de conflicto
- Aumenta los niveles de testosterona
- Puedes consumirla 3 veces al día
- Apoya la formación de colágeno
- The apparatus of claim 37 wherein the apparatus is used as an energy generating device
- Respiración y oxigenación
- Converting the potential energy of the pressurised fluid into electric energy
WO 99/28623 PCT/IE98/00101 A Wave Energy Converter The invention relates to a point absorber wave energy converter, comprising in part an underwater device which derives power from buoyancy variations arising from 5 changes in pressure caused by waves and/or changes in the level on the surface above and which reacts against either the bottom or a second vessel floating on the surface above. 30 WO 99/28623 PCT/IE98/00101 8 Brief Description of the Drawings Figure la is a schematic showing the principle of operation of a single acting device of the present invention, 5 Figure lb is a schematic showing the principle of operation of a double acting device of the present invention, Figure 2a shows the device of Figure 1 a under a flat surface of liquid, Figure 2b shows the device of Figure I a under a crest, such that the head of liquid above is increased, 10 Figure 2c shows the device of Figure l a under a trough, such that the head of liquid above is reduced, Figure 3 shows an arrangement for the device of Figure lb combining a flexible vessel and a counterweight, Figure 4 shows a practical arrangement of the device of Figure 3, 15 Figure 5a shows an alternative embodiment of the device of Figure lb, Figure 5b shows an alternative embodiment of the device of Figure 5a, Figure 5c shows an alternative embodiment of the device of Figure 5a, Figure 6 is a schematic showing the principle of operation of an embodiment of the present invention wherein power is derived from the reaction against a floating vessel, 20 Figure 7a is a schematic showing the device of Figure 6 under a flat surface of liquid Figure 7b is a schematic showing the device of Figure 6 under a crest, such that the head of liquid above has increased, Figure 7c is a schematic showing the device of Figure 6 under a trough, such that the head of liquid is reduced, 25 Figure 8 shows a practical arrangement of the embodiment shown in Figure 6, Figure 9 is a schematic for a method of converting energy of motion using hydraulics and a motor alternator set, Figure 10 is a schematic of a modification of the device of Figure 6. 30 Detailed Description of the Drawings The invention provides a device for extracting energy from a fluid body based on WO 99/28623 PCT/IE98/00101 9 the reaction of a submerged, sealed, and elastic or otherwise compressible device partially filled with air or other gas, to changes in pressure around it. These changes in pressure result from an over-passing ocean swell or changing surface levels in a tank.
A varying pressure will result in a change in volume of the gas, a change in volume of the elastic member and a resultant change in buoyancy of the variable buoyancy 6. The Figure shows the position of the liquid surface at rest 5, a passing wave crest 10, and the bottom or seabed 3. 15 Figure 1(a) is that referred to as a single-acting device, Figure 1(b) as a double acting device.
Fisioterapia Querétaro Calendarios
The apparatus preferably comprises further: 20 a fixed load or non-variable opposing buoyancy connected to the variable buoyant member wherein said load acts to balance the buoyancy of said buoyancy member of variable buoyancy so as to maintain said buoyant member of variable buoyancy in a normal position such that said means for converting said change in buoyancy of the buoyant member of variable buoyancy operates in a double acting manner 25 and a means whereby the variable buoyancy so loaded may react against the bottom or against a further vessel of non-variable buoyancy floating on the surface. A schematic of such an extended fixed mass is shown in Figure 10. As is shown the fixed mass 28 forms a horizontal reaction plate which may be suspended at a depth below where the vertical component of the motion of the water particles is significant.