With a properly chosen stiffness for the power take-off 8, appropriate sizes for the two 10 vessels 6, 113 and the weight 28, the device as whole may be arranged to oscillate with a particular frequency. 10 Oil inputs from additional devices may be added at junction points 125. The water particles below any wave oscillate in harmony with the overpassing wave, and decreases with depth below the surface. 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. The height h 2 is equivalent to the height of the wave crest 10 plus any downward movement of the variable buoyancy 6. Both components of h 2 act so as to increase the pressure on the elastic member 6 and cause a reduction in volume of the elastic member.
- Propensión a caídas o accidentes
- Rigidez de columna en la mañana que se alivia en el curso del día y disminuye con la actividad
- Inflamación y dolor en articulaciones. Artritis
- Debilitamiento de los músculos
- + –
- Antes del Entrenamiento
Preferably said means for converting resulting forces or changes in forces in the WO 99/28623 PCT/IE98/00101 6 apparatus to useful energy may be selected from one or more of the following: (a) a hydraulic system (b) a pneumatic system (c) a mechanical system 5 (d) a piezo-electric system Preferably said means for converting said forces or changing forces in the apparatus converts said change to an output device which is selected from one or more of the following: 10 (a) an electricity generating device (b) a device for the hydrolysis of water (c) a pumping device (d) a device for making potable water (e) a device for extracting dissolved salts 15 (f) a hydraulic device (g) a mechanical device The buoyant member of variable buoyancy preferably includes means for altering the volume of the buoyant member of variable buoyancy in response to changes in 20 pressure on the buoyant member of variable buoyancy.
25 Alternatively said buoyant member of variable buoyancy may be constructed from a substantially rigid container, substantially open at the bottom, such that the changes in surrounding pressure causes a fluctuation in liquid level within the container. 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.
Dolor Muscular Brazo
The height h 3 is less than hi, such that less pressure is being exerted on the gas 7, with a resultant increase in the volume of the elastic member 6. In a similar manner to that described with relation to Figure 2b, h 3 is made up of two components; the depth of the trough 11 and the upward movement of the variable buoyancy 6. The increase in 25 buoyancy of the elastic member 6 results in more tension T 3 being exerted on the actuator 8. The movement of the variable buoyancy 6, which results from using a flexible balloon type arrangement, under the crest and trough adds a dynamic effect to the static 30 effect caused by the passage of the passing wave.