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| Number | Title | Issue Date |
| 8162590 | Wind turbine blade and a pitch controlled wind turbine The invention relates to a wind turbine blade comprising one or more turbulence generating strips, where the strips are placed on a surface of the blade. The blade is characterized in that at least one joint area of the turbulence generating strips and the surface o... | 04/24/2012 |
| 8137052 | Wind turbine generator A wind turbine generator assembly comprising a support tower and a turbine assembly mounted in a downwind position with respect to the support tower. The turbine assembly comprises a cowling assembly and a spoked wheel having a plurality of relatively short blades m... | 03/20/2012 |
| 8128338 | Propeller and horizontal-axis wind turbine A propeller, wherein the tip parts of the propeller blades of a horizontal-shaft windmill are tilted in the front direction of the propeller blades to form inclination parts. The inclination angle of the tilted parts is set within the range of 25 to 50° relative to... | 03/06/2012 |
| 8105010 | Wind energy conversion apparatus A wind energy conversion apparatus includes a supporting structure. The apparatus further includes a shaft having a first and a second end, which is rotatably journalized in the supporting structure, as well as at least one rotor blade having a first end and a secon... | 01/31/2012 |
| 8100628 | Method for controlling a wind energy plant The present invention is related to a method for controlling a wind energy plant, with a nacelle disposed on a tower and with a rotor with at least one rotor blade, the blade adjustment angle of which can be adjusted by means of a blade adjustment equipment. The obj... | 01/24/2012 |
| 8061964 | Hybrid multi-element tapered rotating tower The specification discloses a rotating turbine tower. The tower rotates to maintain the turbine facing into the wind. This allows structure optimization. The tower structure is comprised of a leading edge and a trailing edge, with joining panels between the edge str... | 11/22/2011 |
| 8021100 | Wind turbine with mixers and ejectors A Mixer/Ejector Wind Turbine (“MEWT”) system is disclosed which routinely exceeds the efficiencies of prior wind turbines. In the preferred embodiment, Applicants' MEWT incorporates advanced flow mixing technology, single and multi-stage ejector technology, airc... | 09/20/2011 |
| 8021101 | Wind turbine and method of assembling the same A method of assembling a wind turbine is provided. The method includes coupling a support flange to an inner surface of a tower, and positioning a yaw bearing on the support flange. The yaw bearing includes a plurality of horizontally oriented rollers. A base of a n... | 09/20/2011 |
| 8002516 | Wind harnessing system A wind harnessing system comprises a substantially helical structure including at least a portion of a spiraling groove and at least one energy converter positioned at least partially within the portion of the spiraling groove. In other embodiments, wind grooves for... | 08/23/2011 |
| 7980811 | Turbine with mixers and ejectors A Mixer/Ejector Wind/Water Turbine (“MEWT”) system is disclosed which routinely exceeds the efficiencies of prior wind turbines. Unique ejector concepts are used to fluid-dynamically improve many operational characteristics of conventional wind/water turbines fo... | 07/19/2011 |
| 7976268 | Wind turbine with mixers and ejectors A Mixer/Ejector Wind Turbine (“MEWT”) system is disclosed which routinely exceeds the efficiencies of prior wind turbines. Unique ejector concepts are used to fluid-dynamically improve many operational characteristics of conventional wind turbines for potential ... | 07/12/2011 |
| 7976270 | Turbine with mixers and ejectors A Mixer/Ejector Wind/Water Turbine (“MEWT”) system is disclosed which routinely exceeds the efficiencies of prior wind/water turbines. Unique ejector concepts are used to fluid-dynamically improve many operational characteristics of conventional wind/water turbi... | 07/12/2011 |
| 7976269 | Wind turbine with mixers and ejectors A Mixer/Ejector Wind Turbine (“MEWT”) system is disclosed which routinely exceeds the efficiencies of prior wind turbines. Unique ejector concepts are used to fluid-dynamically improve many operational characteristics of conventional wind/water turbines for pote... | 07/12/2011 |
| 7963740 | Wind energy converter, a wind turbine foundation, a method and use of a wind turbine foundation A wind energy converter includes a wind turbine, a wind turbine foundation including a strengthening structure, and a temperature control mechanism for controlling the temperature of one or more areas of the wind turbine. The wind energy converter is characterized i... | 06/21/2011 |
| 7946803 | Rotor blade for a wind power system The invention pertains to a rotor blade for a wind power system as well as a wind power system. The present invention is based on the objective of disclosing a rotor blade with a rotor blade profile and a corresponding wind power system that make it possible to impr... | 05/24/2011 |
| 7927065 | Wind turbine with additional blade-end support The present invention relates to a wind power plant. It comprises a stator, a rotor, which is supported by the stator, a circular guide device, which has a plurality of fastening points provided on the periphery, at least two rotor blades, which each at the proximal... | 04/19/2011 |
| 7905701 | Wind turbine generator A wind turbine generator is provided in which, even in a cold snowy environment in a cold region, the time required for recovering a frozen anemoscope/anemometer is reduced to minimize a decrease in operating ratio. A wind turbine generator is equipped with an anemo... | 03/15/2011 |
| 7891939 | Hybrid multi-element tapered rotating tower The specification discloses a rotating turbine tower. The tower rotates to maintain the turbine facing into the wind. This allows structural optimization. The tower structure is comprised of a leading edge and a trailing edge, with joining panels between the edge st... | 02/22/2011 |
| 7887284 | Wind turbine to produce electricity A wind turbine has a hub mounted on a rotatable shaft with a ring concentrically mounted on the shaft. The ring is connected to drive wheels, which in turn drive generators to produce electricity. A controller is connected to control the speed of the turbine by cont... | 02/15/2011 |
| 7845899 | Fluid powered turbine engine A wind turbine engine comprising rotor blades disposed within an outer casing and a half-spherical head located in front of the rotor blades and blocking the inner 50% of the radius of the rotor blades, the casing and head creating an acceleration chamber wherein in... | 12/07/2010 |
| 7832979 | Vortex hydraulic turbine An apparatus for generating electric power from water currents comprises a housing having at least one pair of channel, at least one pair of turbine assemblies and at least one pair of generator assemblies. Each channel of the pair has an axial intake, an axial disc... | 11/16/2010 |
| 7802961 | Offshore wind turbine with device for ice prevention Offshore wind turbine (14) including a tower (1) rising above sea level (12) and one or ore blades (4), which can be put into rotation by wind. The offshore wind turbine includes a pump (6), which is adapted to pump sea water (1... | 09/28/2010 |
| 7794196 | Guide-case for water turbine Guide case (24) for use in conjunction with a water turbine (20), with a helical top wall (35) of the annular chamber (27) extended downstream of the inner wall (39) of the inlet port (30). The extension is wetted on its dow... | 09/14/2010 |
| 7775760 | Turbine wheel A wind driven energy source is providing utilizing a turbine wheel comprising a peripheral rim attached to a central hub via a series of spokes. A plurality of airfoil blades are assembled to the wheel, each blade being secured to a pair of spokes and positioned pro... | 08/17/2010 |
| 7758300 | Multi-turbine airflow amplifying generator The wind generating device employs modules each having two turbines. Each of the turbines employs two rotors, coaxially aligned and arranged one downstream from the other. The arrangement includes a proximal channel with a leading portion having decreasing radius to... | 07/20/2010 |
| 7726935 | Wind turbine rotor projection An horizontal axis wind turbine having a rotor (3) with a frontal projection comprising a stationary spherical head (1) upstream of its multibladed turbine rotor (3) displaces and increases the speed of wind addressed over 70% of the total front... | 06/01/2010 |
| 7661922 | Installation for harvesting energy of tides (IHET) in shallow waters Installations for harvesting energy of river and ocean tidal currents consist of multiple Darrieus type turbines with funnels, which are located inline on the river or ocean bottom and oriented perpendicular to direction of water movement due to tide or river curren... | 02/16/2010 |
| 7600963 | Fluid energy converter Embodiments include apparatus and methods of fluid energy conversion. One embodiment relates to a tube for a fluid energy converter. The tube may include a generally cylindrical and hollow body having an interior surface, an exterior surface, and a longitudinal axis... | 10/13/2009 |
| 7530780 | Method and apparatus for wind power foundation An apparatus and method for a wind power foundation. An embodiment of a wind power plant includes a tower having a top and a bottom. The plant also includes an assembly, the assembly including a transition piece that is coupled with a concrete cap. The assembly has ... | 05/12/2009 |
| 7445420 | Horizontal axis wind turbine and idling method of the same A horizontal axis wind turbine includes: a rotor having a hub and at least two or more blades; a nacelle for pivotally supporting the rotor through a rotating shaft connected to the hub; a tower for supporting the nacelle; and an independent pitch control unit capab... | 11/04/2008 |
| 7396207 | Wind turbine A wind turbine comprising: (1) a support portion; (2) a hub that is mounted to rotate adjacent the support portion; and (3) at least one turbine blade mounted adjacent the hub and that comprises both a rotor and a sail that is mounted adjacent the rotor. The rotor m... | 07/08/2008 |
| 7368828 | Wind energy system A wind energy system comprising a queue of turbines housed in a horizontal air conduit. The inlet end of the conduit opens into a wind collector assembly, which preferably comprises in part downwardly extending earthen slope, such as a hillside or embankment. The wi... | 05/06/2008 |
| 7365446 | Wind power plant having power module mounted on tower foundation and method for use in constructing same The invention relates to a method for constructing a wind energy plant and to a wind energy plant as such. An aim of one aspect of the invention is to provide a method for constructing wind energy plants at lower expenses and more rapidly. According to one aspect, a... | 04/29/2008 |
| 7364399 | Wind power plant of cyclone type and method of obtaining energy from such A wind power plant having a tower open at the top and provided with a side inlet for the wind for generating a cyclone in the tower and a substantially horizontal turbine that has inlets through the base and an outlet to the center of the cyclone in the tower and th... | 04/29/2008 |
| 7357624 | Rotor blade for a wind power plant The invention concerns a rotor blade of a wind power installation and a wind power installation. One advantage of the present invention is to provide a rotor blade having a rotor blade profile, and a wind power installation, which has better efficiency than hitherto... | 04/15/2008 |
| 7354245 | Wind power generation device A wind power generation device capable of improving power generation efficiency is provided. The wind power generation device according to the present invention comprises: a substantially cylindrical duct 1 having a side wall with a substantially wing section... | 04/08/2008 |
| 7352073 | Ocean wave energy converter having an improved generator and ballast control The ocean wave energy converter uniquely includes a generator with a rotating inner rotor surrounded by a counter-rotating outer rotor for generating electricity. A reciprocating drive rod drives the inner rotor on the downstroke of the drive rod and the outer rotor... | 04/01/2008 |
| 7352074 | System for producing hydrogen making use of a stream of water A system for producing hydrogen from water, making use of a stream of water such as a gulf stream or tidal stream, includes a number of submerged modules, each having a turbine that can be driven by the stream of water. The turbine is coupled to a generator for gene... | 04/01/2008 |
| 7331752 | Method of conversion of continuous medium flow energy and device for conversion of continuous medium flow energy A device and method for conversion of the energy of medium flows are provided. The proposed device and method ensure suppression of the vortex streams in the flow on the leg of its motion along the radially converging trajectories and concentration of the flow energ... | 02/19/2008 |
| 7311490 | Rotor blade with an electrical field The invention concerns a rotor blade, in particular a rotor blade of a wind power installation. The object of the present invention is to provide measures for still further improving the CR-value and also the level of acoustic power of rotor blades of wind power ins... | 12/25/2007 |
