An underwater device for water power conversion includes multiple cups, each cup constituted by a bottomless cup member and a bottom plate fitted pivotally in a freely rotatable manner, wherein the bottomless cup member blocks flowing water in a standing state and makes flowing water pass through in a lying down state, generating flowing water resistance difference between the two states. The cups are installed in a continuous member of a waterwheel submerged in flowing water so that the cup stands in a forward advance path and lies down in a reverse advance path. A water blocking plate is also provided in the reverse advance path so as to utilize centrifugal force to turn the bottomless cup member from the lying down state to the standing state, thereby making the cup turn or circulate continuously in flowing water.

An ocean current turbine for converting water currents energy includes the following features: a main frame arranged to be immersed in a water current, wherein the main frame comprises a bow part towards the water current, endless rotation chains with plates arranged to being captured at the bow part and driven backward by the water current, wherein the rotation chain runs about and in driving engagement with one or more driven wheels that operates a generator, and port and starboard side frames that are continuously convex and extends from the bow section and back to a transverse wide stern that is narrower than the greatest distance between port and starboard side frames, wherein the rotation chains include a starboard and a port endless rotation chain with the plates, and a reversing mechanism arranged to turn each plate to catch the water current at the bow part, so that each plate is driven backwards along the starboard, respectively port side frame, to back at the rear end of the wide stern part, and where the turning mechanism turns each plate to a passive state where the plate does not substantially catches the water when plate is led forward again by the rotation chain in a shielded cavity between starboard and port side frames and extending to the bow part.

A water-driven turbine has an elongated endless conveyor with down and up streaming straightaways connected by travel-reversing turns. Paddles mounted on the conveyor present high resistance to waterflow on the downstream straightaway and low resistance to waterflow or the atmosphere on the upstream straightaway, the differential allowing the flow of water to continuously drive the conveyor which is connected to a power take-off shaft facilitating connection to a variety of energy-harnessing systems. The turbine can be towed, self-driven or mooring line manipulated to a flow site and is operable in unidirectional flows such as rivers and reversing flows such as tides at depths from surface to bottom. The paddles can be mounted or changed on shore, at the flow site and anywhere in between. The turbine is efficient in low and high velocity water flow, not easily damaged by floating debris, cavitation free and fish, mammal and environmentally friendly.

A precipitation and conveyor operated electrical generation system has a conveyor system, at least one electrical generator, and at least one storage container. Each electrical generator is operatively connected to the conveyor system, such at each electrical generator is operated through motion of the conveyor system. The conveyor system may have multiple conveyor tracks, each having a plurality of conveyor containers that are distributed along, connected to, and configured to circuitously traverse about their corresponding conveyor track. At least one dispensing container of the at least one storage container is configured to receive a quantity of precipitation and dispense the quantity of precipitation into one of the conveyor tracks of the conveyor system. The dispensed precipitation causes motion of the conveyor system and operation of the at least one electrical generator.

A gravity and buoyancy engine producing energy via a cyclical process of harnessed gravity and buoyancy has a gravity chamber, at least one air lock chamber, at least one electricity producing system, at least one buoyant object, and at least one vertical motion transfer assembly. The gravity chamber provides a zone for the buoyant object to engage the vertical motion transfer assembly as the buoyant object descends toward the air lock chamber. The vertical motion transfer assembly further transfers kinetic energy from the vertical motion of the buoyant object to the electricity generating system in order to provide useable electrical energy. The airlock chamber subsequently reintroduces the buoyant object into the buoyancy chamber to return said buoyant object to an elevated position and recycle through the gravity chamber.

An underwater device for water power conversion includes multiple cups, each cup constituted by a bottomless cup member and a bottom plate fitted pivotally in a freely rotatable manner, wherein the bottomless cup member blocks flowing water in a standing state and makes flowing water pass through in a lying down state, generating flowing water resistance difference between the two states. The cups are installed in a continuous member of a waterwheel submerged in flowing water so that the cup stands in a forward advance path and lies down in a reverse advance path. A water blocking plate is also provided in the reverse advance path so as to utilize centrifugal force to turn the bottomless cup member from the lying down state to the standing state, thereby making the cup turn or circulate continuously in flowing water.

The present invention relates to a pumped-storage hydroelectricity generator and, more particularly, to a pumped-storage hydroelectricity generator with improved efficiency, capable of converting water stored in an upper portion into electric energy as much as possible while minimizing loss of the water. The present invention provides a pumped-storage hydroelectricity generator, which includes: an upper water tank to store pumped water, rainwater, or river water input via a pipe using midnight electricity; a hydraulic turbine that receives the stored water from an outlet of the upper water tank and is rotated to generate rotational force; a generator to produce electricity by the rotational force of the hydraulic turbine; a lower collector to collect water rotating the hydraulic turbine; and a simple generating device installed in a discharge pipe of the lower collector and rotated by discharged water, thereby producing electricity, wherein the hydraulic turbine includes a top rotary shaft and a bottom rotary shaft installed on upper and lower portions, respectively, by a main frame and a circulating belt that is in a closed loop to be rotated while being wound around the top and bottom rotary shafts and includes a load transfer means formed on an outer surface thereof, which is rotated by water supplied from the upper water tank; wherein the simple generating device includes a propeller installed in the discharge pipe and rotated by a water discharge pressure, a simple rotary shaft coupled to the propeller and withdrawn to the outside of the discharge pipe; and a simple generator to generate electricity by the rotational force of the simple rotary shaft.

An apparatus is described for converting river, tidal or ocean current energy into another form of energy, such as electrical, mechanical, or chemical energy. The apparatus can include a first underwater sail(s) coupled to a first cable and second underwater sail(s) coupled to a second cable. The sails are configured to catch water flows and move their respective cables along pulleys. The first cable and the second cable can form a main cable loop that is coupled to a bull wheel. A second cable loop configures the sails to best catch the water flow. The pulleys can guide the main cable loop along a rotational direction. The rotational movement of the bullwheel can be transferred to a generator to convert the water flow into another form of energy.

An ocean power plant for converting slow water flow energy with a turbine comprising at least one endless rotation chain (4) with a plurality of plate holders (2) along the rotation chain where the plate holder comprises at least one plate (1) attached in each plate holder, further, the rotation chain running in an extended lane around and engaging at least one drive wheel (5) in the one end arch of the web tiltably attached to the plate holder to alternate between open position with the primary flow direction of the water flow, and closed position towards the flow direction, and the drive wheel has a turbine shaft (7) coupled to a generator device (G), an electrical generator or a converter of the rotational energy to hydraulics or other type of mechanical or potential energy, for the utilization of the rotational energy, furthermore the path of the rotary chain (4) is tilted relative to the main flow direction of the water flow, all arranged in a fully or partially submersible support structure (100).

This invention has to do with generating electricity by converting kinetic energy embedded in the water in motion such as ocean waves, or river flow, or wind pressure into rotational energy which is to be used to rotate the electricity generator spin axis to generate electricity. To achieve this goal, Moving Window Frame with multiple Vertical Windows and with or without a Horizontal Window is invented.