Wave activated generator
First Claim
1. An electrical generator structure adapted to be mounted in the sea for actuation by wave motion comprising an elongate static tube assembly, means for anchoring the tube assembly in vertically extending relation on a seabed, an electrical induction coil extending lengthwise within the tube assembly, means for providing connection of the respective ends of the coil with electrical apparatus external to the tube assembly, a rod vertically reciprocably received within the tube assembly, the rod having an upper end portion projecting from an upper end of the tube assembly, at least one magnet on the rod internally of the coil, and a float on the upper end portion of the rod adapted to be located at the water surface so as to rise and fall responsive to wave motion thereby providing vertical reciprocation of the magnet effective to induce an electrical current in the coil, wherein the float is of elongate navicular hull-shaped form, having a lenticular-shaped upper surface and a hull-shaped lower surface and the rod is freely rotatably mounted in the tube structure.
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Abstract
A wave activated generator utilizes the principle of providing relative movement between a permanent magnet and a coil to induce an electrical current in the coil. The coil is situated in a static tube anchored to the sea bed by means of a ballast tank at the base of the tube and guy wires extending from the tube. A plunger with permanent magnets is mounted in the tube for vertical reciprocation of the plunger, the plunger projecting outwardly from the upper end of the tube and terminating in a hull-shaped float which rides the water surface and provides vertical reciprocation of the plunger responsive to wave motion in order to move the magnets relative to the coil and generate current in the coil.
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Citations
12 Claims
- 1. An electrical generator structure adapted to be mounted in the sea for actuation by wave motion comprising an elongate static tube assembly, means for anchoring the tube assembly in vertically extending relation on a seabed, an electrical induction coil extending lengthwise within the tube assembly, means for providing connection of the respective ends of the coil with electrical apparatus external to the tube assembly, a rod vertically reciprocably received within the tube assembly, the rod having an upper end portion projecting from an upper end of the tube assembly, at least one magnet on the rod internally of the coil, and a float on the upper end portion of the rod adapted to be located at the water surface so as to rise and fall responsive to wave motion thereby providing vertical reciprocation of the magnet effective to induce an electrical current in the coil, wherein the float is of elongate navicular hull-shaped form, having a lenticular-shaped upper surface and a hull-shaped lower surface and the rod is freely rotatably mounted in the tube structure.
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5. The invention of claim 5 including air circulation vents in the inner tube.
- 8. An undersea electrical generator comprising a static tube assembly, means for anchoring the assembly on the seabed, a float assembly extending from the tube assembly and including a freely rotatable elongate hull-shaped float for location at the water surface, the float being adapted to rise and fall responsive to wave motion and to self-align with respect to incoming waves, magnetic induction means within the tube assembly having components associated with the float and tube assemblies, respectively, for generating electrical current by magnetic induction responsive to rising and falling movements of the float, and means for providing a flow path for current produced by said induction means to the exterior of the tube assembly.
Specification