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9038377 Power generator  
The power plant disclosed is an engine that derives its usefulness in the pursuit of energy generation by utilizing hydrostatic pressure differentials found or created in various liquids, gases or...
9003785 Installation for converting hydraulic energy into mechanical or electrical energy  
The invention relates to a facility for converting water power into mechanical or electrical energy, including at least one hydraulic turbine, a water reservoir (R), and a pipe (5) for supplying...
8978766 Temperature compensated accumulator  
A temperature compensated accumulator and method for use thereof downhole in a well. The accumulator may include a housing with separate bulkhead and piston assemblies. Thus, one assembly may...
8955315 Hydroelectric generator  
A hydroelectric generator includes a body and an electromechanical apparatus cabin. The body has a tube penetrating the body and a first flow channel. The tube has a tapering segment and a throat...
8950181 Energy storage system  
Energy can be stored by directing fluid into an expandable receptacle that has a relatively heavy mass above it. The fluid fills the receptacle such that it expands and lifts up the heavy mass...
8950127 Wind energy turbine shell station  
A wind turbine station for generating electricity comprising a multi floor structure having open framing. The open framing comprising at least two spaced-apart, open, vertical frames, the frames...
8943817 Non-linear actuator system and method  
An embodiment of a system and method for moving an object in one axis includes one or more fluid inflatable containers which are arranged to transmit fluid pressure to a plunger, such that a...
8938957 Wave responsive electrical generator  
A wave responsive electrical generator device having a buoyant member connected to an anchor by a tether line member, the line member passing through a sheave mounted within the buoyant member and...
8919112 Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange  
A compressed-air energy storage system according to embodiments of the present invention comprises a reversible mechanism to compress and expand air, one or more compressed air storage tanks, a...
8919111 Device for obtaining internal energy from liquid by utilizing buoyancy and method therefor  
A device for obtaining internal energy from liquid by utilizing buoyancy includes: an inner body (2); a sealing strip (3); a shell body (5); an axle (1) and liquid, wherein the sealing strip (3)...
8896144 Wind turbine energy storage system and method  
A wind turbine energy storage system includes a hollow wind turbine tower shaft having a top end and a bottom end covered by top and bottom end caps respectively to form a tank. A compressor is...
8887497 Apparatus utilizing buoyancy forces and method for using same  
An apparatus has a tank with an open top, a tank wall, and a closed bottom. A first ringwall extends from the bottom such that a first annular space is defined by the first ringwall and the tank...
8881517 Water-wave/flowing-water energy transformer  
The present invention is a device and a method of generating large scale power plant using the energy content in ocean waves or river-channel flows. Ocean waves or flowing waters are used to...
8857166 Hydroelectric power plant  
The invention relates to a hydropower plant having a flow pathway, which has an upper water level and a lower water level;having two turbines, which are connected in series in the flow pathway,...
8857170 Gas pressure reduction generator  
A Gas Pressure Reduction Generator (GPRG) System and a method for implementing a GPRG System is provided, where the GPRG System includes a gas inlet configured to receive a pressurized gas flow...
8839615 Power conversion  
A wind energy converter 10 comprises a horizontal axis wind turbine 12 including a plurality of blade members 14 rotatable about a generally horizontal axis. A mass member 16 is movable along the...
8839616 Water tower complex  
An integrated wind and hydro power generation system includes at least one wind turbine generator device configured to generate output power from a common cavity being occupied by water and air....
8820063 Hydroelectric power generation system  
The present invention is directed to a method for the construction of a hydroelectric power generation system and to hydroelectric power generation systems constructed by such a method.
8823195 Hydro electric energy generation and storage structure  
A hydro electric energy generation structure is disclosed. The structure comprises: a gravity wall forming a closed outer perimeter extending above an upper water level of an existing hydraulic...
8763387 Hydraulic geofracture energy storage system  
Energy is stored by injecting fluid into a hydraulic fracture in the earth and producing the fluid hack while recovering power. The method is particularly adapted to storage of large amounts of...
8763386 Large water turbine  
This invention captures hydrokinetic energy to do work such as produce electricity. The hydrokinetic flow exerts a torque on a turbine wheel. The wheel causes a set of tanks to rotate around a...
8745981 Ocean powered take-off for multiple rotary drives  
A dual powered take-off (PTO) device that efficiently extracts the kinetic energy stored in oceanic waves by converting the up and down movement of passing waves into a linear, bi-directional...
8726644 Control of underwater actuators using ambient pressure  
A device for controlling an underwater actuator by using an ambient pressure potential at the operating depth may include a chamber including a first cavity, a second cavity and a third cavity;...
8713927 Water displacement apparatus  
A water displacement apparatus is provided which uses water as a means for transferring energy from the wind and sun into electricity. Wind and the sun may be used to displace water from a water...
8713928 Dynamically tuned wave energy converter  
A wave energy converter comprises a pitching floating vessel and means for converting the pitching motion to electrical power. By varying the distribution of the ballast mass in the vessel and by...
8667786 Converter and method for converting mechanical energy into electrical energy  
The present invention relates to a converter comprising a pump which is driven directly or indirectly by a natural force such as a water swell, it being possible for a hydraulic machine to be...
8661807 Potential energy regenerating system and method and electricity regenerating system and method  
The present invention provides a potential energy regenerating system and method and an electricity regenerating system and method. The potential energy regenerating system comprises: a liquid...
8661806 Adaptive, low-impact vehicle energy harvester  
An adaptive, low-impact vehicle energy harvester system, and a method of harvesting vehicle energy, is provided. The system includes a plurality of channels disposed longitudinally in a...
8650869 Automatic hydraulic/pneumatic flow rectifier for bi-directional pumps  
An apparatus includes a piston/rod assembly comprising a piston and a housing. The piston is translatable within the housing. The housing comprises a housing power side and a housing filler side....
8646265 Hydraulic power apparatus  
An apparatus and method for providing hydraulic power to a turbine generator. A neutrally buoyant wheel having radially opposed first and second containment chambers is suspended in a reservoir...
8629571 Power generation hydraulic system  
A power generation system 1 comprising a first water container, a hydropower system, a second water container and a pump system. The hydropower system 2,3,4 harness water energy coming from the...
8621856 Hydraulic drive train with energy dissipation for electricity generation  
A hydraulic drive train with energy dissipation for electrical generation. A hydraulic pump is provided in the nacelle of the windmill and powered by the wind turbine shaft. This hydraulic pump...
8614522 Energy converting device  
An energy converting device, particularly for converting mechanical energy to hydraulic energy and from it into electrical energy, uses as an energy transport medium, a control fluid guided in two...
8601804 Power generating apparatus of renewable energy type  
A power generating apparatus includes a rotating shaft, a hydraulic pump driven by the rotating shaft, a hydraulic motor driven by operating oil supplied from the hydraulic pump; and a generator...
8601805 Power generating apparatus of renewable energy type  
A power generating apparatus of renewable energy includes a tower, a nacelle provided at the tower, a main shaft housed in the nacelle and rotating with a blade, a hydraulic pump housed in the...
8598729 Wave power plant  
A wave power plant is disclosed which has one or more foils that are pivotally movable about a body. The foil is set into an oscillating, pivotal motion about the body by the force of the waves. A...
8587145 Vertical axis hydro kinetic wind turbine  
A wind turbine for power generation includes a vertical axis hydro kinetic wind generator with an independent free turning magnetically levitated high powered magnetic translator stack. The wind...
8578708 Fluid-flow control in energy storage and recovery systems  
In various embodiments, compressed-gas energy storage and recovery systems feature one or more valves, which may be disposed within end caps of cylinder assemblies in which gas is expanded and/or...
8561398 Fluid-based power generation system  
A power generating system operates in a flowing body of fluid, such as water or air. The system includes a continuous loop member engaging and rotating around two rotatable members, which, in...
8561399 Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange  
A compressed-air energy storage system according to embodiments of the present invention comprises a reversible mechanism to compress and expand air, one or more compressed air storage tanks, a...
8564152 Dual intake wave energy converter  
This invention is an apparatus and method for harnessing water wave energy by transforming it into a continuous flow of water to be converted into mechanical work by means of a water turbine which...
8534364 Assembly and method for production of gas or gas and condensate/oil  
An underwater placed assembly produces gas or gas and oil/condensate from a subsea gaseous reservoir, where at least one production well is provided from the seabed to a production zone and at...
8534057 Electrical generator for waterway  
An apparatus for generating electricity from a flowing stream of water is disclosed. A rigid frame is fixed with a pair of wheels, or with two linkages in circuit around two pairs of wheels. A...
8525364 Apparatus for converting wave energy  
The invention is an apparatus and method for harnessing wave energy by transforming it in a continuous flow of water to be converted in mechanical energy through a water turbine. The energy wave...
8511079 Piecewise variable displacement power transmission  
In one embodiment, a hydraulic circuit has an input shaft, at least one positive displacement hydraulic pump, a plurality of positive displacement hydraulic motors, and at least one fluid line...
8511078 Hybrid wave energy plant for electricity generation  
The innovation herein proposed describes a plant to produce electricity by the sea waves. The plant is designed to be installed on shore, near shore and offshore scenarios: on the coast line, in...
8474253 Pressure accumulator to establish sufficient power to handle and operate external equipment and use thereof  
A pressure accumulator (10) to establish the necessary power to drive and operate external equipment is described, such as hydraulic and/or mechanical systems comprising a main body (12) with an...
8464525 Subsea power fluid recovery systems  
Systems and methods for recovering power fluid used to power a device under water and for pumping the recovered power fluid to a fluid container above a surface of the water, the method in certain...
8438844 Floatable wave energy converter and a method for improving the efficiency of a floatable wave energy converter  
A wave energy converter includes a housing having a forward end and an aft end. Three upstanding air chambers are located in the housing and three corresponding water accommodating ducts extend...
8432054 Wind turbine with hydrostatic transmission  
A wind turbine has a rotor; a hydraulic pump coupled to the rotor, two or more variable displacement hydraulic motors which are driven by fluid flow from the hydraulic pump, at least one generator...