A tidal power generator has a floating vessel hull that is subject to rising and falling water levels so that the hull moves vertically up and down. Linear-to-rotary converters are coupled between the vessel hull and a fixed object. The converters allow the hull to move vertically while constraining
A tidal power generator has a floating vessel hull that is subject to rising and falling water levels so that the hull moves vertically up and down. Linear-to-rotary converters are coupled between the vessel hull and a fixed object. The converters allow the hull to move vertically while constraining the horizontal movement of the hull. The converters convert the vertical movement of the hull into rotary movement, which is then used to drive an electrical generator. A harborage is provided to protect the hull and the converters and to regulate the water level for the vessel hull as well as become a fixed object relative to the vessel from which a change in relative position causes power to be developed. If the hull is subject to tidal variations, vertical movement of the hull can be desynchronized from the tidal variations so as to store energy during slack tides.
대표청구항▼
The invention claimed is: 1. A power generator, comprising: a) a body of water having a top level that fluctuates, the body of water is contained within a harborage that is subject to tidal activity, the harborage having a port therein so as to allow water to flow in and out of the harborage, the p
The invention claimed is: 1. A power generator, comprising: a) a body of water having a top level that fluctuates, the body of water is contained within a harborage that is subject to tidal activity, the harborage having a port therein so as to allow water to flow in and out of the harborage, the port having a valve that can regulate the flow of water through the port; b) a vessel hull buoyantly located on the water body, the vessel having a displacement of at least 3000 tons, the hull being free to move vertically as the top level fluctuates due to tidal activity; c) a piston-cylinder arrangement coupled between the vessel hull and a fixed object, the cylinder having an output for pressurized fluid when the vessel moves vertically, the piston-cylinder arrangement constraining horizontal movement of the vessel hull; d) a turbine having an input which is connected to the cylinder output, wherein pressurized fluid from the cylinder rotates the turbine. 2. The power generator of claim 1 wherein the vessel hull has a high displacement-to-perimeter ratio. 3. The power generator of claim 1 wherein the piston-cylinder arrangement has two ends, one end of which is fixed to the hull and the other end being fixed to the fixed object. 4. The power generator of claim 1 wherein the piston-cylinder arrangement is coupled to a bottom of the hull. 5. A power generator, comprising: a) a body of water having a top level that fluctuates; b) a vessel hull buoyantly located on the water body, the hull being free to move vertically as the top level fluctuates; c) a piston-cylinder arrangement coupled between the vessel hull and a fixed object, the cylinder having an output for pressurized fluid when the vessel moves vertically, the piston-cylinder arrangement constraining horizontal movement of the vessel hull; d) a turbine having an input which is connected to the cylinder output, wherein pressurized fluid from the cylinder rotates the turbine; e) wherein the body of water is contained within a lock, which lock comprises an input of water with a head elevated relative to the lock and an output of water that is below the head. 6. A power generator, comprising: a) a body of water having a top level that fluctuates; b) a vessel hull buoyantly located on the water body, the hull being free to move vertically as the top level fluctuates; c) a piston-cylinder arrangement coupled between the vessel hull and a fixed object, the cylinder having an output for pressurized fluid when the vessel moves vertically, the piston-cylinder arrangement constraining horizontal movement of the vessel hulk; d) a turbine having an input which is connected to the cylinder output, wherein pressurized fluid from the cylinder rotates the turbine; e) wherein the piston-cylinder arrangement has two ends that are each respectively pivotally coupled to the hull and the fixed object. 7. A power generator, comprising: a) a body of water having a top level that fluctuates; b) a vessel hull buoyantly located on the water body, the hull being free to move vertically as the top level fluctuates; c) a piston-cylinder arrangement coupled between the vessel hull and a fixed object, the cylinder having an output for pressurized fluid when the vessel moves vertically, the piston-cylinder arrangement constraining horizontal movement of the vessel hull; d) a turbine having an input which is connected to the cylinder output, wherein pressurized fluid from the cylinder rotates the turbine; e) wherein the piston-cylinder arrangement is coupled to a side of the hull. 8. A power generator, comprising: a) a harborage having an interior that is capable of holding water and that is subject to fluctuating water levels; b) a buoyant vessel hull located in the harborage interior, the hull capable of rising and falling within the harborage; c) a piston-cylinder arrangement coupled between the hull and a fixed object, the cylinder having an output for pressurized fluid when the hull moves vertically; d) a port in the harborage for varying the water level in the harborage; e) a regulator for controlling the vertical movement of the hull, wherein the regulator further comprises a valve in the port; f) a turbine having an input which is connected to the cylinder output, wherein pressurized fluid from the cylinder rotates the turbine. 9. The power generator of claim 8 wherein the regulator further comprises a valve in the cylinder output. 10. A power generator, comprising: a) a harborage having an interior that is capable of holding water and that is subject to fluctuating water leve1s; b) a buoyant vessel hull located in the harborage interior, the hull capable of rising and falling within the harborage; c) a piston-cylinder arrangement coupled between the hull and a fixed object, the cylinder having an output for pressurized fluid when the hull moves vertically; d) a port in the harborage for varying the water level in the harborage; e) a regulator for controlling the vertical movement of the hull; f) a turbine having an input which is connected to the cylinder output, wherein pressurized fluid from the cylinder rotates the turbine; g) wherein the hull moves vertically to a top position, wherein the hull takes on water to obtain a first displacement, and a bottom position, wherein the hull discharges water to obtain a second displacement that is different than the first displacement. 11. A power generator, comprising: a) a harborage having an interior that is capable of holding water and that is subject to fluctuating water levels; b) a buoyant vessel hull located in the harborage interior, the hull capable of rising and falling within the harborage; c) a piston-cylinder arrangement coupled between the hull and a fixed object, the cylinder having an output for pressurized fluid when the hull moves vertically; d) a port in the harborage for varying the water level in the harborage; e) a regulator for controlling the vertical movement of the hull; f) a turbine having an input which is connected to the cylinder output, wherein pressurized fluid from the cylinder rotates the turbine; g) wherein the hull is a first hull and the piston-cylinder arrangement is a first piston-cylinder arrangement, further comprising: h) a second hull located in the harborage interior, the second hull capable of rising and falling within the harborage; i) a second piston-cylinder arrangement coupled between the second hull and a fixed object, the second cylinder having an output for pressurized fluid when the second hull moves vertically; j) the regulator comprising a first valve in the first cylinder output; and k) a second valve in the second cylinder output, wherein the vertical movement of the first hull can be independent of the vertical movement of the second hull. 12. A power generator, comprising: a) a harborage having an interior that is capable of holding water and that is subject to fluctuating water levels; b) a buoyant vessel hull located in the harborage interior, the hull capable of rising and falling within the harborage; c) a piston-cylinder arrangement coupled between the hull and a fixed object, the cylinder having an output for pressurized fluid when the hull moves vertically; d) a port in the harborage for varying the water level in the harborage; e) a regulator for controlling the vertical movement of the hull; f) a turbine having an input which is connected to the cylinder output, wherein pressurized fluid from the cylinder rotates the turbine; g) the regulator further comprises a valve in the port, the port being a first port, the first port being subjected to tidal variations; h) a discharge pond larger than the harborage; i) a valved second portion that when opened provides communication between the harborage and the discharge pond; j) the discharge pond comprising a valved outlet subjected to tidal variation. 13. A power generator, comprising: a) a harborage having an interior that is capable of holding water and that is subject to fluctuating water levels; b) a buoyant vessel hull located in the harborage interior, the hull capable of rising and falling within the harborage; c) a piston-cylinder arrangement coupled between the hull and a fixed object, the cylinder having an output for pressurized fluid when the hull moves vertically; d) a port in the harborage for varying the water level in the harborage; e) a regulator for controlling the vertical movement of the hull; f) a turbine having an input which is connected to the cylinder output, wherein pressurized fluid from the cylinder rotates the turbine; g) a second hull located in the harborage interior, the second hull capable of rising and falling within the harborage; h) a second piston-cylinder arrangement coupled between the second hull and a fixed object, the second cylinder having an output for pressurized fluid when the second hull moves vertically; i) a first valve in the first cylinder output and a second valve in the second cylinder output, wherein the vertical movement of the first hull can be independent of the vertical movement of the second hull.
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