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Prime-mover Dynamo Plants > Electric Control > Fluid-current Motors

Fluid-current Motors

Fluid-current Motors patent applications listed include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.

03/13/14 - 20140070534 - Power generating apparatus of renewable energy type and operation method thereof
A power generating apparatus of renewable energy type includes a rotating shaft rotated by the renewable energy received via a blade, a hydraulic pump driven by the rotating shaft to generate pressurized oil, hydraulic motors driven by the pressurized oil, and synchronous generators connected to a grid without an intervening...

12/12/13 - 20130328308 - Apparatus and method for recovering exhaust kinetic energy
An apparatus and method for recovering exhaust kinetic energy. The apparatus includes a valve assembly, a motor generator and a controller. The valve assembly includes a rotary shaft which is disposed in an exhaust gas pipe and a flap which is disposed on the rotary shaft. The flap is rotated...

12/05/13 - 20130320674 - Net present value optimized wind turbine operation
A wind turbine control system operates a wind turbine and controls the amount of power output at maximum power output conditions to achieve the goal of emphasizing power generation in the present at the expense of power generation in the future. Because of the time value of money, a given...

12/05/13 - 20130320675 - Water current turbine arrangements
A method is described for controlling a water current turbine array which includes first and second pluralities of water current turbines operable to generate electricity from a water current. The method includes controlling respective power generation characteristics of the water current turbines in the array so as to maximise power...

10/31/13 - 20130285376 - Electro-hydrodynamic wind energy system
A system for electro-hydrodynamically extracting energy from wind includes an upstream collector that is biased at an electric potential and induces an electric field. An injector introduces a particle into the electric field. The wind drag on the particle is at least partially opposed by a force of the electric...

10/03/13 - 20130257049 - Renewable energy extraction device tolerant of grid failures
A renewable energy extraction device, such as a wind turbine generator includes a turbine driving a hydraulic pump and a variable displacement hydraulic motor driving an electrical generator connected directly to an electricity grid. The hydraulic motor employs electronically controlled valves operated to select the net displacement of working chambers...

08/22/13 - 20130214532 - Tunable fluid flow generator
A tunable generator has a surface structure for contacting an exterior fluid flow relative to a base structure. The contacting surface structure also has an electrogenerative portion positioned relative to the contacting structure and the base structure. The electrogenerative portion is preferably a piezoelectric or electromagnetic structure, although other types...

08/22/13 - 20130214533 - Method for power regulation of an underwater power plant
in a second, power-limited operating range the assigned load moment is chosen so that an operating point distant from the power optimum results for the water turbine....

08/08/13 - 20130200617 - Power transmission systems
A power transmission system may include a plurality of renewable-energy devices such as wind turbines or subsea turbines. The devices are connected together in parallel to a subsea cable that carries an ac transmission voltage. Each device includes a turbine assembly that is rotated by wind or water current flows,...

07/18/13 - 20130181448 - Electric actuators in aircraft systems
An electric actuation system for an emergency power system of an aircraft includes a motor control portion, a motor brake, a motor in electrical communication with the motor control portion, mechanical gearing in mechanical communication with the motor, the mechanical gearing configured to translate rotational motion of the motor into...

05/30/13 - 20130134708 - Power generating apparatus of renewable energy type and control method thereof
A power generating apparatus of renewable energy type includes a rotation shaft, a hydraulic pump, a hydraulic motor, a generator and a pitch drive unit. When a fault even occurs, a deviation of a state indicating an operation state from a normal state value is calculated. When the deviation is...

05/02/13 - 20130106105 - Multi-megawatt ocean current energy extraction device
An underwater apparatus for generating electric power from ocean currents and deep water tides. A submersible platform including two or more power pods, each having a rotor with fixed-pitch blades, with drivetrains housed in pressure vessels that are connected by a transverse structure providing buoyancy, which can be a wing...

05/02/13 - 20130106106 - Hybrid electro magnetic hydro kinetic high pressure propulsion generator
An apparatus includes an electro-magnetic metallurgy high powered electric energy density push-repel two stage magnetic stack cylinder drive motor and a hydro-kinetic high pressure hydraulic and nitrogen gas piston drive pump propulsion motor arrangement. A linear electric generator can be coupled to the arrangement to generate electric energy or the...

03/07/13 - 20130056984 - Downhole power generation by way of electromagnetic induction
Electrical power may be generated at a downhole position of a production well by way of electromagnetic induction through oscillating linear translation driven by the flow of a fluid being transported by the production well. In exemplary embodiments, a conductive coil is disposed in a fixed position along a length...

02/28/13 - 20130049362 - Tidal power plant and method for operating said tidal power plant
The invention relates to a flow power plant, comprising a water turbine having torsionally rigid rotor blades, a drive train connected to the water turbine, which at least indirectly drives an electric generator and is characterized in that at inflow speeds v for which the flow power plant is designed,...

02/14/13 - 20130038058 - Method and apparatus for generating electricity
An electrical generator apparatus for generating electrical energy is disclosed. The electrical generator utilizes liquid flow within a tubular member to provide mechanical force to rotate a rotor. The electrical generator includes a rotor comprising an impeller, wherein the rotor is configured to receive liquid flow within an electromagnetic induction...

09/20/12 - 20120235408 - Self-powered miniature liquid treatment system with configurable hydropower generator
A liquid treatment system that may be self-powered includes a hydro-generator. A flow of liquid may be used to rotate the hydro-generator to generate electric power. The hydro-generator may include an outer housing and an inner housing. The inner housing may include a first hub removeably engaged with a second...

08/09/12 - 20120200084 - Underwater power generator
An underwater power generator (10) comprises a support structure (14) including a pylon (22) having a male boss (24) at an upper end of the pylon (22). A generation unit (12) has a housing (15) and a blade set (16). A female socket (28) is provided on the generation unit...

07/26/12 - 20120187680 - Electrical power conversion system and method
A system and method for electrical power conversion, with the system being intended for use in converting a high voltage DC power output from a turbine generator to an AC power signal that is suitable for connecting to an AC power grid. The system utilises a mechanical coupling between a...

06/14/12 - 20120146330 - Hydro turbine generator
A hydroelectric turbine generator and control system is provided that optimizes the maximum possible power output at all times by strictly monitoring power output from the generator unit and modulating the wicket gate angle and the runner blade pitch independently of one another. The hydroelectric turbine generator includes a means...

04/19/12 - 20120091710 - Apparatus and method for co-generation
A co-generation apparatus for the generation of electricity from an external source of forced air is described in which the co-generation apparatus comprises a turbine, a generator, a co-generation control unit, and an adjustable standoff. The turbine is connected to the generator for the production of electricity. The generator interface...

04/19/12 - 20120091711 - Apparatus and method for producing electric power from injection of water into a downhole formation
An apparatus and method for generating electricity from a liquid flowing in a generally vertical direction down a borehole. There is a turbine disposed at a subsurface position and having an intake and a discharge, the turbine being mechanically coupled via an output shaft to an electric generator such that...

04/12/12 - 20120086203 - Exhaust generator assembly
An apparatus for generating electricity from a relatively low velocity exhaust produced by a blower on a piece of machinery. The apparatus includes a fan assembly and a generator located inside an outer housing mounted on a base. Attached to the base and extending into the outer housing is a...

04/12/12 - 20120086204 - System and method for controlled hydroelectric power generation
A system for generating electricity in a water distribution network includes a hydroelectric generator in fluid communication with a pipeline or a valve of the network. A differential pressure control pilot limits differential pressure across the hydroelectric generator. A solenoid coupled to the differential control pilot controls water passage through...

03/29/12 - 20120074698 - Power control methods
In an oscillating water column (OWC) assembly power may be generated based on a power reference that is derived from an estimate of the available mechanical power in the air turbine 2 or a measured pressure drop across the turbine. The power reference is used to derive a power control...

03/08/12 - 20120056424 - Method and device for decelerating an underwater power station
The invention concerns a method for the operation of an underwater powerplant comprising a water turbine for purposes of absorbing kinetic energy from a flow of water; an electrical generator with converter feed, whose generator rotor is connected in a torsionally rigid manner with the water turbine, wherein the invention...

01/12/12 - 20120007361 - Water handling environment water electric generator
A variable volume and velocity water electric generator system for use in a narrow channel in which variable amounts of water flow. The system includes an electric generator/water wheel unit mounted on a rigid frame vertically aligned within the channel. The unit includes an electric generator and the water wheel...

12/22/11 - 20110309619 - Generator with falling stator
A generator is provided including a rotatable pressure vessel with an inner and outer surface. Electromagnets are disposed on the inner surface of the pressure vessel. A biasing structure is configured to rotate within, and independently of, the pressure vessel and extends at least partly along a lengthwise dimension of...

10/27/11 - 20110260453 - Generator utilizing fluid-induced oscillations
An electrical generator including a magnetic field generator and at least one energy converter for converting energy present in fluid flows into vibrations or oscillations. The converter includes a flexible membrane having at least two fixed ends. The membrane vibrates when subject to a fluid flow. One of the electrical...

09/01/11 - 20110210548 - Control system for extracting power from water flow
A system for controlling operation of a water turbine is described, the system comprising, a turbine; means for measuring an activity affecting operation of the turbine; means for altering operation of the turbine; and a data processing apparatus comprising a central processing unit (CPU), a memory operably connected to the...

08/25/11 - 20110204627 - Electrical generating device with potential energy of water or fluid
An electrical generating device includes one or more ram water pumps for pumping water from a lower water reservoir into an upper water tower, a water paddling device having a rotatable housing located below the water tower and coupled to an electric generator to generate an electrical energy, and a...

08/25/11 - 20110204628 - Aircraft ventilation device
The ventilation device according to the invention includes a fan and an inverter. The fan comprises a rotary electrical machine and a wheel for setting an air flow into motion, integral with the rotary machine to set it in rotation. The inverter is connected to the rotary machine and, in...

07/21/11 - 20110175351 - Miniature hydro-power generation system power management
A miniature hydro-power generation system includes a hydro-power generator, a processor and an energy storage device. A flow of liquid may be used to rotate the hydro-generator to generate electric power. The processor is configured to monitor a level of the electric power generated by the hydro-power generator and a...

07/14/11 - 20110169264 - Remediation of mines using pumped storage electrical generation
A method to generate electrical power in order to provide resources to remediate and restore exhausted or abandoned mines, caves, and cavities; thereby rendering the space safer, resisting pollution, improving the environment, improving lost and useless wastelands, and allowing repetitive power generation year around at the same locations; providing employment....

06/09/11 - 20110133452 - Energy generating assembly and a method for generating energy
A number of electrical energy generating assemblies, such as assemblies 10, 240, and 400 which are disposed within a pipeline 12 or in close proximity to the inlet 11 and/or outlet portion 125 of the pipeline 12 and which are adapted to selectively generate electrical energy by use of the...

04/28/11 - 20110095530 - Tethered aquatic device with water power turbine
A water power turbine energy conversion device and method of generating electric power that can take advantage of water current speeds is hereinafter disclosed. The water power turbine energy conversion device includes an unmanned tethered aquatic device (TAD) connected to one end of a tether (which may include multiple shorter...

04/21/11 - 20110089691 - Gearless turbo-generator
An auxiliary power unit includes a gas generator that produces a flow of gases to drive a free power turbine that directly drives an electric generator. The electric generator is driven by the free power turbine at a desired speed without the use of step down gearing to provide a...

03/10/11 - 20110057442 - Hydroelectric power generator and related methods
A hydroelectric power generator is capable of generating electrical power from a moving body of water. The power generator comprises a shell comprising a wall having interior and exterior surfaces, and an interior volume. A fixed gear is fixedly attached to the interior surface of the shell. A stationary shaft...

03/03/11 - 20110049882 - Device for charging at least one electrical battery on board a boat
A device for charging at least one electric battery (1) on board a boat comprises a propeller (2) adapted to immersed in water through the movement of the boat be driven to rotate a axle (3) and an electric direct current machine (8) connected to the axle and adapted to...

02/03/11 - 20110025057 - Exhaust gas power recovery apparatus and flex generator
An apparatus and method for generating electricity from relatively low velocity exhaust gas. The apparatus includes a plurality of axial flux generators perpendicularly mounted on a support ring that is axially aligned around the exhaust gas port opening. Each axial flux generator includes a plurality of radially aligned blades mounted...

01/27/11 - 20110018266 - Turbine apparatus
Turbine apparatus for a hydroelectric power station, with a turbine impeller, which is capable of rotating about a turbine rotary spindle, which is in particular arranged vertically, with turbine blades (4), which are fitted at an angle with respect to the turbine impeller (3), in particular a fixed angle, with...

01/27/11 - 20110018267 - Exhaust turbine generator system and method of controlling the same
An exhaust gas turbine generator system for a vehicle that has an internal combustion engine with an exhaust system is provided. The exhaust system comprises a turbine, an electrical generator, a waste gate, and an electronic control module. The turbine is disposed in fluid communication with an exhaust gas system...

01/20/11 - 20110012351 - hydropower device
A hydropower device for generating electric power comprises a pipe having an upstream portion and a downstream portion and being arranged to convey water. A valve is provided at the downstream portion and adjustable between a closed position hindering the water and an open position permitting the water to flow....

12/30/10 - 20100327581 - Miniature hydro-power generation system power management
A miniature hydro-power generation system may include a hydro-power generator and energy storage devices. A flow of liquid may be used to rotate the hydro-generator to generate electric power at a generator output. The generator output may be electrically coupled to each of the energy storage devices so that the...

12/30/10 - 20100327582 - Generator with falling stator
A generator is provided including a rotatable pressure vessel with an inner and outer surface. Electromagnets are disposed on the inner surface of the pressure vessel. A biasing structure is configured to rotate within, and independently of, the pressure vessel and extends at least partly along a lengthwise dimension of...

12/30/10 - 20100327583 - Pitch, roll and drag stabilization of a tethered hydrokinetic device
A hydrokinetic device is provided that extracts power from a water current. The device comprises a buoyant body and a rotor coupled to the buoyant body configured to drive a power generator. The buoyant body and the rotor jointly define a center of buoyancy and a center of gravity, the...

11/25/10 - 20100295302 - Systems and methods for a linear hydrokinetic generator
A linear hydrokinetic generator assembly generates power. An exemplary embodiment drifts a harnessing surface in a current of fluid away from the generator assembly and draws a cable attached to the harnessing surface from a cable spool as the cable is drawn by the drifting harness surface, wherein the drawn...

09/09/10 - 20100225112 - Power generator and power generation system including this power generator
According to the present invention, there is provided a power generator that can generate power having a predetermined voltage and a predetermined current even though external energy is slight or excessively strong when generating power based on water power or wind power, the power generator comprising: a magnet rotor that...

08/26/10 - 20100213711 - Electrical power generation apparatus
A power generation apparatus is disclosed. The apparatus includes a turbine rotor to generate mechanical energy from a flow of a fluid, an induction generator coupled to the turbine rotor to convert the mechanical energy into electrical energy, a fluid speed sensor to output a fluid speed signal indicative of...

08/19/10 - 20100207388 - Supplemental power source
A supplemental power source for a building or other structure is provided. Power is generated by converting mechanical energy derived from a fluid into electrical energy. The fluid can be, for example, in the form of air in a building air duck or water in building water lines. The invention...

06/10/10 - 20100140933 - Device for capturing energy from a fluid flow
A device (10) for capturing energy from a fluid flow is disclosed. The device (10) comprises a base (12) adapted for stationary mounting relative to the fluid flow. A member (20), having a longitudinal axis (21), is movably connected relative to the base (12) and is adapted to move relative...

06/10/10 - 20100140934 - Method and system of controlling a hydroelectric plant
The control system of an embodiment of the present invention may be configured to automatically and/or continuously monitor the hydroelectric plant to determine whether a physical parameter is within a desired range. Alternatively, the control system may be configured to require a user action to the initiate operation. An embodiment...

06/10/10 - 20100140935 - Reversible hydroelectric device
Reversible hydroelectric device that can be installed on an outside pipe, comprising a hydraulic power unit comprising a hydraulic machine comprising a centrifugal pump that can be reversed as a turbine and a hydraulic circuit having bypass branches and motorized valves allowing circulation of water in said hydraulic machine in...