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| Number | Title | Issue Date |
| 8142155 | Wind turbine generator and method for constructing wind turbine generator Provided are a wind turbine generator and a method for constructing a wind turbine generator that allow for alleviation of construction costs, particularly for large wind turbine generators, and alleviation of limitations on construction due to weather. Provided are... | 03/27/2012 |
| 8109727 | Wind turbine A wind turbine (20) includes a turbine wheel (22). Radially extending sailwing assemblies (30) are supported between the axle structure (28) and the perimeter rail (26) of the turbine wheel. The sailwing assemblies include sail end... | 02/07/2012 |
| 8105034 | Vertical-axis wind turbine and method for the production thereof The invention relates to a vertical-axis wind turbine and at least 2 turbine blades, wherein every turbine blade is connected via a supporting arm and a connecting element that can be purely tensile-loaded to the rotatable vertical axis. According to the invention, ... | 01/31/2012 |
| 8087896 | Handling system for a wind turbine nacelle, method for vertical displacement and a wind turbine nacelle and a wind turbine nacelle A handling system for a wind turbine nacelle in connection with self-loading or self-unloading of the nacelle to or from a vehicle. The system uses two or more lifting apparatus, where the lifting apparatus are engaged with lifting areas of a load carrying structure... | 01/03/2012 |
| 8087895 | Handling system for a wind turbine nacelle, methods for transport and vertical displacement of a wind turbine nacelle and a use of a handling system A handling system for a wind turbine nacelle in connection with self-loading or self-unloading of the nacelle to or from a vehicle. Two or more lifting apparatus are provided for displacing the nacelle substantially vertically during the self-loading or self-unloadi... | 01/03/2012 |
| 8047791 | Wind turbine generator and method for constructing wind turbine generator Provided are a wind turbine generator and a method for constructing a wind turbine generator that allow for alleviation of construction costs, particularly for large wind turbine generators, and alleviation of limitations on construction due to weather. Provided are... | 11/01/2011 |
| 8038400 | High-efficiency windmill A high-efficiency windmill includes an inner rotor having propellers for capturing wind blowing along a wind direction to push the inner rotor about an axis, and an outer rotor rotatable about the same axis independently of the inner rotor radially exteriorly of the... | 10/18/2011 |
| 7931440 | Vertical axis wind turbine A vertical axis wind turbine comprising: a rotatable vertical shaft; a first horizontal shaft attached to the vertical shaft, and extending on either side of the vertical shaft; a first wind turbine blade fixedly attached to the first horizontal shaft, the first win... | 04/26/2011 |
| 7901184 | Torsionally loadable wind turbine blade A torsionally loadable wind turbine blade, includes a loading member secured to a body of the wind turbine blade; and an adjuster for actively displacing the loading member and torsionally deforming the blade on a spanwise axis. ... | 03/08/2011 |
| 7837442 | Root sleeve for wind turbine blade A sleeve for a wind turbine blade includes an opening for receiving a root end of the wind turbine blade; and an inboard edge for substantially abutting a hub of a wind turbine. ... | 11/23/2010 |
| 7690895 | Multi-piece passive load reducing blades and wind turbines using same A wind turbine includes a tower and a generator on the tower. The generator includes a rotor with at least one assembled blade. The assembled blade includes at least an inner piece, an outer piece, and a joint configured for assembly and disassembly of the inner pie... | 04/06/2010 |
| 7481624 | Butt connection for hollow profile members A butt connection of divided hollow profile members, which is suitable in particular for rotor blades of wind power installations, comprises a multiplicity of straps which are arranged along the joint and which bridge over same and which are respectively fixed with ... | 01/27/2009 |
| 7413404 | Sail wing type windmill A sail wing type windmill includes an output shaft erected vertically, a foundation with a bearing disposed in the center hole provided therein for supporting the output shaft; an axle body with a roller bearing on the top end, while the bottom end thereof being con... | 08/19/2008 |
| 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 |
| 7393180 | Wind turbine in parked position The invention relates to a method for operating a wind power plant with a rotor and with at least two rotor blades rotatable about a common rotor axis in a rotor blade plane, whereof each can be swivelled about a swivel axis which is roughly parallel to its longitud... | 07/01/2008 |
| 7381029 | Multi-piece wind turbine rotor blades and wind turbines incorporating same A multisection blade for a wind turbine includes a hub extender having a pitch bearing at one end, a skirt or fairing having a hole therethrough and configured to mount over the hub extender, and an outboard section configured to couple to the pitch bearing. ... | 06/03/2008 |
| 7364406 | Segmented vertical axis air rotor and wind generator apparatus An apparatus is provided for generating electricity in response to a fluid flow. The apparatus includes a top rotor element coupled to a center axis with an arm extending substantially perpendicular to a center axis. The arm moves in response to the fluid flow to ro... | 04/29/2008 |
| 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 |
| 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 |
| 7353603 | Method for mounting rotor blades to a rotor hub of a wind power installation A method of mounting rotor blades to a rotor hub which is connected to a pod of a wind power installation, includes the following steps: rotating the rotor hub into a predetermined first position, fitting a rotor blade, rotating the rotor hub by means of the rotor b... | 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 |
| 7352076 | Small wind turbine system A small wind-powered electricity generation system, providing regulated AC electric power from wind energy to a power system grid, has a wind turbine that produces less than 10 kW of peak electric power in a permanent magnet generator that produces generator power w... | 04/01/2008 |
| 7329099 | Wind turbine and energy distribution system A new design of vertical axis wind turbine is disclosed based on a dome structure using dome struts as blades that work in concert to produce rotational motion. The stability and low cost of the new design allows the turbine to function in low wind speed regimes as ... | 02/12/2008 |
| 7321173 | Wind powered streetlight A streetlight for illuminating a portion of an adjacent roadway. The streetlight includes three vertical support members with a rotatable axle mounted intermediate thereto. Superposed on the vertical support members is a light assembly. A plurality of wind receptacl... | 01/22/2008 |
| 7317261 | Power generating apparatus Power generating apparatus (10) including a cable (12) which rotatably mounts a plurality of power units (14). The power units (14) include wind power turbines (46) for producing power from the wind as the power units (14) f... | 01/08/2008 |
| 7309930 | Vibration damping system and method for variable speed wind turbines A vibration damping technique for a wind turbine system is described. The wind turbine system includes a vibration damper, which provides a variable signal to control torque produced by a generator of the wind turbine system. The variable signal is based on generato... | 12/18/2007 |
| 7303369 | Magnetic vertical axis wind turbine A lift and drag-based vertical axis wind turbine in which the vertical axis and foils mounted thereon are magnetically levitated above the turbine's base, thereby reducing friction within the system. The foils or vanes are three-dimensionally shaped about the vertic... | 12/04/2007 |
| 7296974 | Wind energy turbine The invention relates to a wind turbine and to the installation of such a wind turbine, particularly offshore. When wind turbines are installed in the previously known manner, a tower of the wind turbine is firstly manufactured, said tower being a steel tower, a con... | 11/20/2007 |
| 7284949 | Vertical axis wind or water turbine A mechanical device consisting of two horizontal shafts (4 & 5) in cruciform each rotating axially within two sets of bearings (6), each set positioned near either end and interfaced upon a rotor base (10) which itself is fixed to a verti... | 10/23/2007 |
| 7276810 | Wind power plant based on the windmill principle with an additional vane bearing at the vane end The present invention concerns a wind power plant with a central rotor unit (1); a ring carrier element (2), which surrounds the central rotor unit (1) in a concentric configuration; and with several rotor vanes (3) which are fixed with a... | 10/02/2007 |
| 7244097 | Device for adjusting the angle of incidence of a rotor blade of a wind power installation A device for the targeted adjustment of the angle of incidence of a rotor blade (13) which is rotatably mounted, at the foot (14) thereof, on a hub (12) of a rotor (11) of a wind power installation (10). The device includes a geari... | 07/17/2007 |
| 7241105 | Watercraft with vertically collapsible vertical axis wind turbine and propeller flexible drive shaft A vertically collapsible vertical axis wind turbine may be used on land, or on a watercraft (e.g. a multihull such as a catamaran). The turbine may include a substantially vertical shaft; at least two vane supports mounted by the shaft; and at least two vertically c... | 07/10/2007 |
| 7204674 | Rotor blade for a wind power installation A rotor for a wind power installation having at least one rotor blade. The smaller the surface area on which the wind acts, that is to say in particular the rotor blade area, the correspondingly lower is the load level for which installation has to be designed and t... | 04/17/2007 |
| 7198453 | Offshore structure support and foundation for use with a wind turbine and an associated method of assembly A pile based braced caisson structural support device includes a number of legs in is used to support a wind turbine. The wind turbine includes a base, a turbine generator and a blade mechanism. The legs are configured in a teepee type configuration such that the fo... | 04/03/2007 |
| 7199485 | Wind turbine with current conducting means, which are pre-assembled in the tower The present invention concerns a wind energy plant for generation of alternating current with a tower constructed of several tower segments, a generator arranged in the region of the top of the tower, a power module arranged in the region of the base of the tower, a... | 04/03/2007 |
| 7156609 | Method of making complex twisted blades with hollow airfoil cross section and the turbines based on such A reactive turbine, each blade of which approximates a helical shape that is constructed with readily available conventional manufacturing techniques. The blades are constructed in discrete straight sections that, when joined, approximate a helix or any other effici... | 01/02/2007 |
| 7119452 | Voltage control for wind generators A wind turbine generator control system includes relatively fast regulation of voltage near the individual generators with relatively slower overall reactive power regulation at a substation or wind farm level. The setpoint of the relatively fast voltage regulator i... | 10/10/2006 |
| 7118341 | Self adjusting sail vertical shaft windmill A vertical shaft is provided and supported whereupon are mounted sails that can so self adjust as to interact with the wind in such a way as to power a windmill as well as relieve themselves from winds that are too severe while maintaining continuous operation. ... | 10/10/2006 |
| 7105941 | Framework composition windmill A framework composition windmill includes a cylindrical tower and a wind power dynamic component positioned at the top end of the tower. The wind power dynamic component includes a wind-driven rotor and an STS energy exchange coupling element which includes an annul... | 09/12/2006 |
| 7100438 | Method and apparatus for determining a site for an offshore wind turbine A method for determining a site for an offshore wind turbine includes determining a plurality of possible site locations, and positioning an offshore assembly at at least one of the possible site locations, wherein the assembly includes a floating support structure,... | 09/05/2006 |
