The present invention relates to an apparatus for converting rotation into fluid flow and/or fluid flow into rotation. The apparatus comprises a first coiled fluid conduit and a second coiled fluid conduit and a fluid separator for separating a first fluid from a second fluid having a second density different from the first density. The fluid separator is configured in such a way that when, during rotation of the fluid conduits first mass portions of the first fluid and second mass portions of the second fluid are alternatingly transported by the first fluid conduit into or from the fluid separator, third mass portions of the first fluid and fourth mass portions of the second fluid are alternatingly transported from or to the fluid separator by the second fluid conduit. A ratio between each of the first mass portions and each of the second mass portions is substantially greater than a ratio between each of the third mass portions and each of the fourth mass portions. This provides for a net flow of one of the first and second fluids through the apparatus.

The hydroelectric power generating system includes a reservoir for retaining a body of water and an outer vessel that surrounds a peripheral wall of the reservoir. A circumferential canal extends between an upper portion of the reservoir peripheral wall and the outer vessel. One or more penstocks extend below the canal between the reservoir and the outer vessel. Each penstock has one or more hydroelectric turbine generators installed therealong. A plurality of primary wind turbines can be disposed on a peripheral wall of the reservoir and a plurality of air columns can be disposed within the reservoir to generate auxiliary power.

The present invention is a power storage system for use in a body of water, including a cable strung between at least one lower pulley and an upper pulley. A tank arrangement includes an outer tank disposed in the body of water and having an open bottom end, the outer tank fixed with the cable and configured to move between a lowered position and a raised position. An inner tank is disposed within the outer tank and includes an air compressor configured to move air from the outer tank to the inner tank and a dump valve configured to release compressed air within the inner tank into the outer tank. A generator produces electricity as the air within the inner tank is released to cause the outer tank to rise. A second tank arrangement is fixed to an opposing side of the cable.

A electricity generating system consists of the following components: Supply of compressed air. Non-corrosive water filled circular tank structure. Cribbage to secure equipment. Air jet Impellers. Air recapturing hoods. Air injection nozzles. Air entrapment chambers. Axial power transfer equipment for operating A.C. electricity generators. The supply of compressed air is obtained from several existing methods; such as a water wheel operating air compressing pumps. Compressed air is injected into air entrapment chambers attached to the impeller surface. Air entrapment chambers are nozzle filled at lowest reference point of circular tank. Chambers are filled in a rotation series. Impellers are rotated by the air lift forces being applied to one side of an imaginary vertical plane. Air released from impeller is captured and reused to drive the next in line impeller. The leveraged rotational force of the impeller axle drives a hydraulic pumps which spins an electricity generator.

This is a machine that contains a fluid loop that is utilized by using buoyancy and gravity to produce a fluid flow through a hydro turbine or other flow energy converter within the enclosed system. In one embodiment compressed gas is injected into a vessel at the underside of a piston to create a buoyant condition which forces the piston upward, thusly forcing the fluid above the piston through the hydro turbine. In another embodiment fluid or other matter fills a hollow piston at the top of the vessel and through the force of gravity descends, thusly forcing the fluid beneath the hollow piston downward and in turn upward through the adjoined vessel and then through the hydro turbine. In both referenced embodiments alternating ascent and descent cycles can be utilized within each adjoined vessel to cause fluid flow through the hydro turbine. Other embodiments are presented within as examples.

An air-driven generator for generating electric power from movement of a working fluid. Upper ends of buoyancy conduits are in fluidic communication with an upper end of a gravitational distribution conduit, and a lower end of the gravitational distribution conduit is in fluidic communication with lower ends of the buoyancy conduits. An air injection system injects air into the buoyancy conduits. A closed fluid loop is formed with working fluid flowing from the gravitational distribution conduit driving a fluid turbine system that is interposed between the lower ends of the gravitational distribution conduit and the buoyancy conduits. Flow of working fluid can be induced by an injection of air into working fluid disposed in the buoyancy conduits to achieve a generation of power by actuation of the fluid turbine system. An upper chamber can remove entrained air. A Rankin Cycle Generator can receive and be actuated by exhausted air.

EnergyMaster is an innovative floating hybrid tidal/wave/wind energy harvesting system based on vertical axis turbines for synergized tidal, wave and wind energy production in agriculture and aquaculture applications. EnergyMaster can continuously, and simultaneously, harvest wind and tidal energy in a wide range of wind and tidal current speeds, while providing excellent self-starting capability.

A concave hermetic air/brine encapsulating vessel, or cap 10, positioned in the sea at a chosen area according to tidal range. Wherein the open underside of the vessel allows brine/sea water to freely enter or exit the vessel and the tide rises and falls respectively. This rise and fall of the brine within the vessel will result in changes to the air pressure within the vessel, as the air because pressurised as the brine rises, and forms a vacuum with the vessel as the brine falls. These changes in pressure are used to operate a pneumatic actuator 60, via a suitable system of valves 50,52 coupled to the inlets and/or outlets of a pipe couple to a vent 30 on the upper portion of the vessel, or within a plurality of pipes couple to a manifold 40 coupled to the vent 30. Wherein the operation of the pneumatic actuator 60 powers a generator 62 for producing and storing power.

An energy conversion device includes a container body configured to hold a liquid; a housing affixed above the container body by a handler connected to a surface of the container body, wherein a primary roller is configured to rotate at a first end of the housing and a free roller is configured to rotate at a second end of the housing; a piston attached at a first end to an outer perimeter of the primary roller; an inflatable balloon attached to a second end of the piston within the container body, wherein vertical movement of the piston causes the primary roller to rotate; an air chamber configured to supply air to a lower opening in the inflatable balloon via a balloon valve; and an interconnect located on a side of the free roller configured for connection to one of an energy-driven device or a turbine generator.

A power generator driving device utilizing tides to form a liquid piston comprises a fixed upside-down lid container, the container mouth is immersed in the seawater and the top end is higher than the highest sea surface while in the flood tide; and, at least one air pipe, having a first end pipe port communicating with the interior of the upside-down lid container and the other second end pipe port being defined above the sea surface, a rotating shaft of the power generator is configured outside the second end pipe port and the second end pipe port faces the windward side or the leeward side of the blade of the rotating shaft. The said configuration enables the seawater inside the upside-down lid container to form a liquid piston, and the liquid piston will gradually rise or fall accompanying with the flood tide or ebb tide of the seawater. Based on the communicating vessel principle, the air inside the upside-down lid container is squeezed by the seawater, such as the liquid piston to be blown out or suck in from the second end pipe port of the air pipe while in flood tide or ebb tide, thereby driving the blade to rotate to enable the power generator to generate electricity.