Wave activated power generation device and wave activated power generation plant
First Claim
1. A wave activated power generation device comprising:
- a cylindrical floating body anchored on water and extending in a vertical direction relative to a surface of the water;
a ballast provided at a lower end portion of the floating body; and
a power generating equipment provided at an upper end portion of the floating body, whereinthe floating body includes a buoyancy control chamber that allows the floating body to vertically float in the water and that adjusts a position of the floating body relative to the surface of the water to a predetermined height in accordance with a relation between buoyancy of the floating body and weight of the ballast, and an air chamber that is formed between the buoyancy control chamber and the power generating equipment,the power generating equipment includes an air turbine provided above the air chamber and driven by an air flow generated between an inside and outside of the air chamber by vertical motion of the surface of the water, and a generator rotationally driven by the air turbine, andthe air turbine always rotates in one direction independently from a direction of a reciprocating air flow generated between the inside and outside of the air chamber, and wherein the air turbine includes a floating nozzle movable by a predetermined distance in a direction of a rotary shaft thereof in accordance with a direction of the air flow.
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Accused Products
Abstract
A wave activated power generation device includes a cylindrical floating body anchored on water and extending vertically to a water surface, a ballast provided at a lower end portion of the floating body, and a power generating equipment provided at an upper end portion of the floating body. The floating body includes a buoyancy control chamber allowing the floating body to vertically float in the water and adjusting a position of the floating body relative to the water surface to a predetermined height in accordance with a relation between buoyancy of the floating body and weight of the ballast, and an air chamber formed between the buoyancy control chamber and the power generating equipment. The power generating equipment includes an air turbine provided above the air chamber and driven by air flow generated between an inside and outside of the air chamber by vertical motion of the water surface, and a generator rotationally driven by the air turbine. Furthermore, a wave activated power generation plant includes the coupled plural wave activated power generation devices upon request.
40 Citations
19 Claims
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1. A wave activated power generation device comprising:
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a cylindrical floating body anchored on water and extending in a vertical direction relative to a surface of the water; a ballast provided at a lower end portion of the floating body; and a power generating equipment provided at an upper end portion of the floating body, wherein the floating body includes a buoyancy control chamber that allows the floating body to vertically float in the water and that adjusts a position of the floating body relative to the surface of the water to a predetermined height in accordance with a relation between buoyancy of the floating body and weight of the ballast, and an air chamber that is formed between the buoyancy control chamber and the power generating equipment, the power generating equipment includes an air turbine provided above the air chamber and driven by an air flow generated between an inside and outside of the air chamber by vertical motion of the surface of the water, and a generator rotationally driven by the air turbine, and the air turbine always rotates in one direction independently from a direction of a reciprocating air flow generated between the inside and outside of the air chamber, and wherein the air turbine includes a floating nozzle movable by a predetermined distance in a direction of a rotary shaft thereof in accordance with a direction of the air flow. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A wave activated power generation plant, comprising:
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a plurality of wave activated power generation devices that are anchored on water; at least one linking device that couples the plurality of wave activated power generation devices with a predetermined interval therebetween; and a product collecting device connected to the linking device, wherein each of the wave activated power generation devices includes a cylindrical floating body anchored on the water and extending in a vertical direction relative to a surface of the water, a ballast provided at a lower end portion of the floating body, and a power generating equipment provided at an upper end portion of the floating body, the floating body includes a buoyancy control chamber that allows the floating body to vertically float in the water and that adjusts a position of the floating body relative to the surface of the water to a predetermined height in accordance with a relation between buoyancy of the floating body and weight of the ballast, and an air chamber formed between the buoyancy control chamber and the power generating equipment, the power generating equipment includes an air turbine provided above the air chamber and driven by an air flow generated between an inside and outside of the air chamber by vertical motion of the surface of the water, and a generator that is rotationally driven by the air turbine, the air turbine always rotates in one direction independently from a direction of a reciprocating air flow generated between the inside and outside of the air chamber, and wherein the air turbine includes a floating nozzle movable by a predetermined distance in a direction of a rotary shaft thereof in accordance with a direction of the air flow, and the linking device includes at least one joint member provided on an outer peripheral portion of the floating body at a predetermined angular interval, and a link member pivotally coupled to the joint member. - View Dependent Claims (15, 16, 17, 18)
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19. A wave activated power generation device comprising:
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a cylindrical floating body anchored on water and extending in a vertical direction relative to a surface of the water; a ballast provided at a lower end portion of the floating body; and a power generating equipment provided at an upper end portion of the floating body, wherein the floating body includes an upper portion having a smooth surface in order to minimize a force that causes the floating body to move vertically due to waves, a buoyancy control chamber that allows the floating body to vertically float in the water and that adjusts a position of the floating body relative to the surface of the water to a predetermined height in accordance with a relation between buoyancy of the floating body and weight of the ballast, and an air chamber that is formed between the buoyancy control chamber and the power generating equipment, the power generating equipment includes an air turbine provided above the air chamber and driven by an air flow generated between an inside and outside of the air chamber by vertical motion of the surface of the water, and a generator rotationally driven by the air turbine, and the air turbine always rotates in one direction independently from a direction of a reciprocating air flow generated between the inside and outside of the air chamber, and wherein the air turbine includes a floating nozzle movable by a predetermined distance in a direction of a rotary shaft thereof in accordance with a direction of the air flow.
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Specification