| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 415300100 | Having specific features for water current | 7 |
| 20100119353 | Systems For Improved Fluid Flows Through A Turbine - A system for installing and extracting a flowing water turbine below the surface of the water includes a flow inducer assembly for improving the conversation of the kinetic energy of a waterway to mechanical energy. The flow inducer assembly includes a nozzle that may be shaped as a cowling and a outlet diffuser. The system may be useful in a number of settings, including, but not limited to, streams, rivers, dams, ocean currents, or tidal areas that have continuous or semi-continuous water flow rates and windy environments. | 05-13-2010 |
| 20110058929 | HYDROKINETIC TURBINE STRUCTURE AND SYSTEM - A hydrokinetic turbine system, including a plurality of hydrokinetic turbines is installed on a bed of a body of water. Each turbine has a shroud with a forward entrance portion and rear exit portion. The shroud includes a propeller disposed in a middle portion thereof. An inner surface of the shroud includes a plurality of rifling vanes formed therein to induce water entering the forward entrance portion to rotate in a vortex-like fashion. A plurality of pre-spin guard blades disposed adjacent the forward entrance portion also induce rotation of water and serve to provide a barrier preventing objects from passing into the forward entrance portion. A plurality of stabilizers extending from an exterior surface of the shroud that position the forward entrance portion in the direction of current flow. | 03-10-2011 |
| 20130243570 | Hydraulic Turbomachine - The invention relates to a hydraulic turbomachine comprising a runner acted upon by water, said runner having a plurality of guide vanes, a spiral housing enclosing the runner, a traverse ring having two traverse ring decks that are interconnected by cross-beams, and lengths of pipe enveloping the traverse ring, said lengths of pipe being interconnected one after the other in the circumferential direction and the flow-sections thereof tapering in the flow direction of the water. The invention is characterized by the following features: at least one reinforcing element is mounted on the outer circumference of the spiral housing in the region of the connecting point between two lengths of pipe, which reinforcing element locally interconnects two lengths of pipe at a time; a plurality of reinforcing elements which are distributed on the circumference of the spiral housing above the connecting point between two lengths of pipe; and the reinforcing element is mounted on the spiral housing in the region of the transition from the spiral housing to the respective traverse ring deck. | 09-19-2013 |
| 20130272846 | TURNING/OSCILLATING MOTION SUPPRESSING APPARATUS OF WIND POWER GENERATING FACILITY AND FLOATING OFFSHORE WIND POWER GENERATING FACILITY - The present invention provides a floating offshore wind turbine capable of suppressing yawing of a nacelle caused by a gyro effect which is a cause of adverse influence of power generating efficiency of a wind turbine and endurance of devices thereof. The floating offshore wind turbine includes a rotor which is rotated by wind, a nacelle in which a rotation shaft of the rotor is accommodated, and a tower including a turning seated bearing which supports the nacelle such that the nacelle can turn with respect to a sea surface to exert a weathercock effect. The tower is provided with yawing suppressing means which suppresses yawing of the nacelle. According to this, it is possible to suppress the yawing of the nacelle generated by a gyro effect caused by yawing generated in the floating body by waves of the sea surface. | 10-17-2013 |
| 20140147248 | NATURAL ENERGY EXTRACTION APPARATUS - An object of the present invention is to provide a natural energy extraction apparatus comprising a vertical rotating shaft and a float for supporting the vertical rotating shaft, wherein the internal structure of the float is simpler, the float and a mooring apparatus are more compact, and production cost is lower than in the conventional natural energy extraction apparatus. A natural energy extraction apparatus comprises a first float forming a swingable vertical rotating shaft, a second float moored to surround the first float, and a power transmission device attached to the second float to convert rotational kinetic energy of the first float to driving torque for driven equipment, and the natural energy extraction apparatus is installed on a body of water. | 05-29-2014 |
| 20140154050 | HYDROKINETIC UNIT - The invention refers to a hydrokinetic unit which allows a high level exploitation of the energetic potential of rivers in the plain regions, where the flat relief does not allow to build dams or culverts and which is destined to convert the kinetic energy of flowing waters into useful mechanical energy for producing electric energy or for pumping water by using such modular hydrokinetic assemblies equipped with generators or pumps. The hydrokinetic unit according to the invention comprises a threshold ( | 06-05-2014 |
| 20160146181 | WING AND TURBINE CONFIGURATION FOR POWER PLANT - A power plant includes a structure and a vehicle having at least one wing including a first wing part and a second wing part. The vehicle is arranged to be secured to the structure by at least one tether. The vehicle is arranged to move in a predetermined trajectory by a fluid stream passing the wing. The vehicle includes at least one turbine connected to a nacelle having a generator. At least the first wing part is arranged at a first angle relative to a horizontal centre line of the wing. The nacelle is arranged to be attached to a surface of the wing facing the direction in which the first wing part is angled. | 05-26-2016 |
