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Patent Searching and Data


Matches 401 - 450 out of 723

Document Document Title
WO/2006/123924A1
The invention relates to wind-power engineering and makes it possible to form a swirling vortex stream, to reduce a blade aerodynamic drag, to increase a stream kinetic energy and to reduce a converter power losses. The inventive method ...  
WO/2006/109362A1
A wind turbine generator (1) has a wind reception blade (10) and piezoelectric plates (11a, 11b). The wind reception blade (10) is constructed from a substantially trapezoidal-shaped plate member whose opposite narrow sides have differen...  
WO/2006/108348A1
A wind energy device relates to a device using wind energy, including case body, fishlike section body and low pressure layer. A wind channel, having a wind inlet and a wind outlet, is provided in the case body. The fishlike section body...  
WO/2006/053987A1
The invention concerns a vertical-axis wind turbine useful in particular for supplying electricity, pumping water or storing potential energy. More precisely, the inventive wind turbine comprises two blades linked through their respectiv...  
WO/2006/043600A1
An energy converter has a flexible plane body (1) that is placed at a position exposed to a flow of fluid such as wind and a part of whose peripheral edge flaps almost freely by the flow, an energy conversion section (31) for converting ...  
WO/2005/090777A1
Apparatus for extracting power from a moving fluid, especially water and in particular tidal water comprises one or more hydroplanes (18) and means for adjusting the angular orientation of the hydroplanes with respect to the incident cur...  
WO/2005/064153A1
A wind turbine device where over speeding of a wind wheel with the increase in natural wind is prevented by a load produced by a fan based on a rotational force of the wind wheel. The wind turbine device has a wind wheel rotating while c...  
WO/2005/064155A1
A wind turbine for producing electricity using wind. In a power generating section, a driving shaft, columns, and a guide shaft are installed between a base frame fastened to a support plate and a cover frame positioned above the base fr...  
WO/2005/059358A1
Merecon is a machine for generating electric energy using either the wind or the energy of water movements as well as the variant relying on the potential energy of upstream water level up to the downstream water outlet using the cart sy...  
WO2004110859B1
The present invention relates to a self-trimming oscillating system. This system comprises a wing like member (5) pivotally mounted on an elongated lever (3). It also comprises reciprocating connecting (49) means adapted to cause articul...  
WO/2004/110859A1
The present invention relates to a self-trimming oscillating system. This system comprises a wing like member (5) pivotally mounted on an elongated lever (3). It also comprises reciprocating connecting (49) means adapted to cause articul...  
WO/2004/059162A1
The invention relates to wind-power engineering, in particular to wind-powered generators which transform wind energy into electrical, mechanical, hydraulic and other type energy. Said invention makes it possible to increase the efficien...  
WO/2004/044417A1
The invention relates to the variants of an aerogenerator which comprises a rotor supported by two bearing carriages (11) movably arranged on a closed annular horizontal support (12) and a transmission system for transmitting rotational ...  
WO/2004/044418A1
Apparatus (500), plant and method for the conversion of wind or water flow energy into mechanical energy exploitable by users, comprising: two wing devices (501, 502) apt to assume a driving configuration and a resting configuration; mea...  
WO/2004/005710A1
The invention relates to a device for generating a lifting force for extraction of energy from a medium flowing by, comprising an elongated body (11) having an outer surface (12) for affecting a first medium flowing by, a first end (13) ...  
WO/2003/081028A1
The invention concerns the conversion of energy produced from a flowing medium into electric energy and relates to hydraulic power engineering, for example of rivers, flood-tide and ebb-tide streams etc, and also the conversion of energy...  
WO/2002/086312A1
The present invention comprises a wind turbine design where the preferred layout is a two bladed teetered downwind rotor with fixed pitch and with a smaller secondary rotor coupled to an electric generator mounted at the tip of each main...  
WO/2002/052149A1
The invention relates to a wind- or water-driven device (1) for generation of electric current and for driving pumps or the like, comprising a rotational shaft (8), positioned right across the driving medium, and shafts (4) parallel to i...  
WO2002002934A8
A power generation assembly (30) for use in generating electrical power from air or water currents is disclosed. The power generation assembly (30) includes a rail system (32), a vane assembly (34), having a frame (36) and at least one v...  
WO/2002/002934A1
A power generation assembly (30) for use in generating electrical power from air or water currents is disclosed. The power generation assembly (30) includes a rail system (32), a vane assembly (34), having a frame (36) and at least one v...  
WO/2001/073291A1
The invention concerns a windmill with multidirectional lever arm operating through the movement of a pole (1) urged into forward travel by the action of the wind and in back travel by being returned by a counterweight (2), the sail bein...  
WO/2001/034976A1
The invention relates to a hybrid system that utilizes wind and solar energy. The aim of the invention is to provide a hybrid system that is characterized by increased efficiencies and a more compact design so that it can be integrated i...  
WO/2001/027470A1
It is mentioned a device with a wind power machine for utilization of the energy in flowing fluid as air and water by that the device comprises transversal moving vanes which may yield a higher efficiency than e.g. traditional wind mills...  
WO/2001/025629A1
The invention relates to a method for utilizing wind energy, wherein a fluid stream such as wind is conducted via an element that increases the stream velocity so that an under-pressure zone is created. The present invention is character...  
WO/2001/001017A1
A device for transforming the rotational movement of a working lever (3) defining a cone and having a rotational movement of its own, whereby the working lever (3) performs an intrinsic rotation of 180° for a 360° revolution of the con...  
WO/2000/056568A1
The present invention relates to a vehicle in the form of a volumetric body that comprises freight and passenger compartments, a plurality of electromotive plants and devices for accelerating the crew to a desired speed. This vehicle is ...  
WO/2000/056567A1
The present invention relates to a vehicle in the form of a volumetric body that comprises freight and passenger compartments, a plurality of electromotive plants and devices for accelerating the crew to a desired speed. This vehicle is ...  
WO/2000/045050A1
Concerning existing propeller-driven wind power plants, weight increases faster than effect, with increasing radii of the wings, thereby the costs, which has the result that plants are becoming unprofitable when they go beyond a certain ...  
WO/2000/045048A1
A flow energy converter comprises a plurality of vanes (14) mounted in a support means (10) for movement around a closed path (16) and each vane is deflectable to either side of the closed path by rotation about an axis (15) at an angle ...  
WO/2000/042319A1
This is the top view of the CEC system for use of Hurricanes which happen in Florida, Gulf Coast and Eastern Seaboard of U.S.A. 'Z' represents the blades of the turbine which catch the wind and spin the turbine 'A'. '2' is the metal surr...  
WO/2000/042326A1
A motion converting device capable of diversifying such as a reduction in size, increase in efficiency, reduction in cost, and others, wherein a supporting member is installed in a specified plane limited by a first direction and a secon...  
WO/2000/001945A1
Disclosed are the components and processes to produce and install a functional accumulated power plant to convert and store marine wind and wave energy mechanically offshore, transmission of the energy by high pressure fluid means throug...  
WO/1999/045268A1
A prime mover for extracting power from moving water is described comprising a body which is caused to oscillate in water by reversing the direction of thrust generated by at least one submerged control member e.g. a hydroplane or rotati...  
WO/1999/027764A2  
WO/1998/012433A1
Method and apparatus for converting the kinetic energy of a moving fluid stream into useful work by using a cascade of thin aero of hydro foils (2) positioned therein. The foils may be provided with at least two degrees of freedom and ad...  
WO/1998/007983A1
The improvements are applicable to the type of energy production eolian systems known as translation wind motors, based on the arrangement of a series of blades (1) having an optional profile and mounted on drive cables (2) forming a clo...  
WO/1997/037124A1
A wind power plant includes a boom (3), a vertical shaft (4) that supports the boom (3) midway between its ends for oscillatory slewing of the boom in the horizontal plane, a vertically-oriented blade (1, 2) at each end of the boom, wher...  
WO/1996/012105A1
A vertical-shaft windmill in which each blade, preferably in the shape of a sector of a circle, is attached to a horizontal shaft. Each blade and the horizontal shaft rotate or swing so that the blade moves to the other side of the verti...  
WO/1996/004479A1
The system comprises a series of blades (3), having a biconvex profile, connected transversally to the external portion of a flexible transmission line (2) formed by two or more elements, preferably steel cable , determining what can be ...  
WO/1995/012068A1
A control head (10) for a body (12) of a flow engine, said body capable of being put into a back-and-forth motion under the effect of a flow, sets the body (12), which is connected to a trolley (16) that is movable on a guide bed (14) tr...  
WO/1994/021913A1
A converter system (10) for a flow engine converts the motion of a body (12), which is arranged in a medium flow, into usable energy. The body (12) is coupled by a movable vehicle (30) to a retaining mechanism in the form of a stationary...  
WO/1990/008895A1
A machine for extracting useful work from low-speed winds includes a sail (28) pivotally mounted to an arm (22) for pivotal motion about a first axis (32), and a base (18) to which the arm (22) is pivotally mounted for pivotal motion abo...  
WO/1987/005079A1
The device comprises a plurality of conducting surfaces arranged on endless supports guided by means of return pulleys. Fixed conducting surfaces are arranged either in front or behind or between the forward moving conducting surfaces an...  
WO/1987/004496A1
The object of this invention is to provide a large scale but low cost windmill by maximizing wind-contact out of the least cost of materials with least cost of maintenance. This is attained by making the sails (100) as large as possible ...  
WO/1983/003452A1
An ocean thermal energy converter (OTEC) (52) generates electricity from warm surface water in dropping 100 meters or so, and then raises it back to the surface using its own thermal energy in a large floating vacuum chamber. The mist fl...  
WO/1983/000194A1
A vertical axis wind turbine has one or more blades (10) mounted in cantilever manner on a hub (12) on a short tower (14). The or each blade (10) is unsupported above the level of the hub (12) and extends freely upwards. The hub (12) may...  
WO/1982/000321A1
Most wind energy conversion systems require maintenance because of moving parts, such as turbine bearings, swivel bearings (for directing the turbine into a changeable wind) and at least one set of gears. The present invention largely el...  
WO/1981/001867A1
Method and apparatus for converting the kinetic energy of a moving fluid stream into useful work by means of a cascade of thin airfoils (181 - 1810) positioned therein. In one embodiment, the airfoils are provided with at least two degre...  
WO/1981/001443A1
A windscrew is a wind rotor characterised in that it rotates when the axis of the rotor is at right angles (fig. 1 and 2) to the wind and when it is located in the direction of the wind (fig. 3 and 4). It operates with unmodified efficie...  
JP2019510920A
A dynamo is provided with the 1st portion (1) that has long shape and has the 1st end (11) and 2nd end (12). Since the 1st portion is attached to a base (1000) corresponding to the 1st end (11), it is arranged, and if fluid moves, it is ...  

Matches 401 - 450 out of 723