Class / Patent application number | Description | Number of patent applications / Date published |
415007000 | FLOAT SUPPORTED OR BUOYANT RUNNER | 11 |
20100135768 | Column structure with protected turbine - A turbine system includes a turbine positioned so that its blades are exposed during at least part of their rotation to a region of fluid flow accelerated by a columnar structure, such as a building or a bridge pylon. A protective casing moves to isolate the turbine blades from the fluid flow, thereby protecting the turbine from overpowering conditions. Upwind and downwind fairings may be used when retrofitting pre-existing buildings. Turbines may be positioned on opposing sides of a building. Multiple turbine modules may be positioned in line along peripheries of a building. Turbines may be mounted on in-water structures, such as buoys. | 06-03-2010 |
20110038705 | DEVICE FOR CONVERTING WAVE ENERGY INTO MECHANICAL ENERGY - A wave power plant for extracting energy from the wave movement of a water surface area, which wave power plant comprises a frame construction ( | 02-17-2011 |
20110129329 | WIND TURBINE INSTALLATION VESSEL AND A GRAVITY CENTER ADJUSTMENT DEVICE THEREOF - The present invention discloses a gravity center adjustment device ( | 06-02-2011 |
20110200425 | OFFSHORE WIND TURBINES AND DEPLOYMENT METHODS THEREFOR - A method of deploying offshore wind turbine assemblies includes mounting a wind turbine assembly horizontally on a vessel and transporting the wind turbine assembly to an offshore site. The wind turbine assembly is raised to a vertical condition at the site and attached to anchor weights. Blades are attached to the turbine head after the wind turbine assembly is in the vertical condition. In one embodiment, the wind turbine assembly can include a tower including tapered lower and upper sections joined together at their respective wide ends, a turbine head connected to the upper section, and a platform connected to the lower section. The platform includes a buoy tank partially filled with ballast to provide mass and buoyancy. A wave piercing cowling is rotatively attached to the lower section. The turbine head can include an adjustable journal bearing, scabbard blade mounts, and a gearless induction generator with flux adjusting capabilities. | 08-18-2011 |
20120230811 | LARGE-SCALE VERTICAL-AXIS HYBRID TURBINE, ROTOR AND FLYWHEEL SYSTEM - The invention comprised a vertical-axis rotor system features a large flywheel assembly having a rim assembly | 09-13-2012 |
20120257955 | OFFSHORE HYDROELECTRIC TURBINE ASSEMBLY AND METHOD - The invention is directed to a single moored offshore marine turbine assembly having a central control vessel which includes a main vessel tethered to a control buoy. The main vessel having a first cap, a corresponding second cap and a tubular shell positioned between both the first cap and second cap. The tubular shell contains one or more vertical partitions to assist in ballasting. The control buoy includes a compressor and an air conduit which forces air into the main vessel through a manifold. A hollow suction caisson affixes the central control vessel to the ocean floor. A taut line mooring secures the suction caisson to the main vessel. Electricity is generated via a turbine shroud assembly having a conical shroud and a hydro-turbine. By attaching a plurality of turbine shroud assemblies in series via cables, a horizontal turbine array is formed resulting in a simple, economical and safe layout. | 10-11-2012 |
20140044521 | MULTIPURPOSE ROTARY DEVICE AND GENERATING SYSTEM INCLUDING SAME - A multipurpose rotary device includes a rotor configured to include a plurality of blades in a circumferential direction; and a load guide body configured to guide a flow of fluids flowing into the inside of the rotor, wherein the load guide body includes an upper support member and a lower support member configured to be disposed to face each other at the upper and lower sides thereof and connected to one another such that the rotor is rotatably installed; load guide plates configured to correspond to the blades and are rotatably installed between the upper and lower support members in a longitudinal direction; and stop pins configured to be formed on inner surfaces facing the upper and lower support members to control a rotational angle of the load guide plates. | 02-13-2014 |
20140140812 | TILTING BLADE SYSTEM FOR VERTICAL-AXIS WIND AND WATER TURBINES FOR MINIMAL DRAG, HIGH EFFICIENCY & MAXIMUM POWER OUTPUT - Certain vertical-axis wind and water turbine blades suffer from drag that reduces the turbine's torque and turbine-generated power. Significant drag is generated when the blade is turning upstream on the return side of the turbine. This invention is a blade system that reduces upstream (return) side drag to almost nothing by enabling the turbine blade to tilt or swivel to eliminate almost all fluid resistance to the blade on the upstream side. The result is much increased turbine efficiency, increased torque and power from vertical-axis wind or water turbines. The increased power resulting from this innovative turbine blade system enables the use of gearboxes to increase the RPM of vertical axis turbines for electricity generation, and also enables easier self-starting. Easier to manufacture turbine blades use linear approximations for the curved sections of modified Savonius blade profile. | 05-22-2014 |
20140308111 | Vortex Energy Recovery Turbine - A free stream fluid kinetic energy conversion device combines a large diameter freewheeling primary rotor with small diameter secondary power takeoff rotors placed within the lift induced blade tip vortices of the primary rotor. This enables use of high rotational speed generating units and avoids diseconomy of scale in gearbox expense. The device partially recovers otherwise lost blade tip vortex energy. The freewheeling primary rotor transmits no reaction torque to the support structure. Resilient buoyant tether deployment accommodates transient eddy induced structural loads. | 10-16-2014 |
20140377052 | Device For Converting Wave Energy Into Mechanical Energy - A wave power plant for extracting energy from the wave movement of a water surface area, which wave power plant comprises a frame construction ( | 12-25-2014 |
20160195102 | PUMP WITH INTEGRAL CAISSON DISCHARGE | 07-07-2016 |