Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 401 - 450 out of 752

Document Document Title
WO/2007/146155A2
A system for generating electricity from fluid currents having one or more trolleys (2) that move along a closed-loop track (1) as a result of the action of fluid currents on one or more blades (11) attached to each trolley (2). Spacing ...  
WO/2007/144643A2
One aspect of the invention provides a method and apparatus for converting wind energy to another form of energy. The apparatus comprises one or more kite tethered to ground or water-based means and means for controlling the kite(s) to f...  
WO/2007/139412A1
The invention herein described consists of a system destined to harness wind resources, transferring wind power to the ground station group on the surface, the process being performed through the tensioning and unwinding of the cable gro...  
WO/2007/135701A2
An automatic control system (1) is described for the flight of a kite (2), in order to generate electric or mechanical energy, comprising first detecting means (3) on board the kite (2) detecting first pieces of information regarding at ...  
WO/2007/129341A1
A system (1) is described for automatically controlling the flight of at least one power wing airfoil (2) , comprising first detecting means (3) on board of such power wing airfoil (2) adapted to detect first pieces of information (3a) d...  
WO/2007/124621A1
An apparatus converting wind force into mechanical energy and the application for the same are disclosed. The apparatus converting wind force into mechanical energy includes at least a controllable flat or curved blade (L1 to L8), the ar...  
WO/2007/121904A1
A sail attached to rotating structures with a vertically pivoting axis (1) for the purpose of utilizing the dynamic force of the wind (W), that consists of a vertical mast (4) that is firmly connected to the rotating structure and that i...  
WO/2007/122650A1
An aeolian system is described for converting energ comprising at least one power wing profile (30) which can be driven from the ground immersed in at least one aeolian current (W) and a basic platform (1) for controlling the wing profil...  
WO/2007/118462A1
The apparatus for use of flow energy has elongated circumferential elements (18) with incident-flow surfaces (34, 35) facing the flow, which elements (8) are connected parallel to one another at intervals to form a rotating cage (1) or t...  
WO/2007/118936A1
A recovery unit and method for recovering energy, the method comprising recovering energy by a recovery unit (100) which comprises a pontoon (102), a power transmission member (104) and an actuator (106), arranging the actuator (106) ins...  
WO/2007/101404A1
A fluid energy accumulator is disclosed, which consists of an energy receptor, a coupling mechanism, a converting mechanism and an output mechanism. The energy receptor is a pair of parachute-shaped bodies, each of which includes a dome ...  
WO2007019607A8
A device (10) for capturing energy from a fluid flow is disclosed. The device (10) comprises a base (12) adapted for stationary mounting relative to the fluid flow. A member (20), having a longitudinal axis (21), is movably connected rel...  
WO/2006/130719A3
Method and apparatus for converting the kinetic energy of a moving fluid stream into useful work by using a parallel cascade of aerofoils or hydrofoils positioned therein. The foils may be provided with at least two degrees of freedom an...  
WO/2007/075104A1
The invention relates to hydropower engineering and is used for converting a flowing medium energy (rivers, tidal and other currents) into electric power and air mass energy into electric or mechanical power for rotating different device...  
WO/2007/034193A3
The Kitepower Generator uses one or more kites that go through a oscillating cycle of motion creating varying forces on their tether lines. These varying forces are converted into rotation, using a crankshaft. The cycle of motion may be ...  
WO/2007/034193A2
The Kitepower Generator uses one or more kites that go through a oscillating cycle of motion creating varying forces on their tether lines. These varying forces are converted into rotation, using a crankshaft. The cycle of motion may be ...  
WO/2007/031800A1
The invention refers to an electromechanical system which converts the kinetic energy of the water or wind currents into electric energy using parachutes (5) . Closed loops (9) of cables incorporate co-axially fastened parachutes (5) are...  
WO/2007/019607A1
A device (10) for capturing energy from a fluid flow is disclosed. The device (10) comprises a base (12) adapted for stationary mounting relative to the fluid flow. A member (20), having a longitudinal axis (21), is movably connected rel...  
WO/2007/000788A1
A device (1) is described for generating energy, composed of at least two ultralight airfoils (3, 5) rotating along their own axis, which functionally reproduce the characteristics of a propeller. The ultralight airfoils (3, 5) which cha...  
WO2005111460A3
A system for reducing vibrations in a rotating system uses a variable viscosity medium (26) that is redistributed in a housing (20) connected to the rotating system (2). Specifically, the medium is responsive to a control signal that is ...  
WO/2006/131575A1
The invention relates to a device for exploiting wind energy using sails. The invention is characterised in that it comprises a car which is equipped with (i) wheels that are connected to an electric current generator by means of a pulle...  
WO/2006/130719A2
Method and apparatus for converting the kinetic energy of a moving fluid stream into useful work by using a parallel cascade of aerofoils or hydrofoils positioned therein. The foils may be provided with at least two degrees of freedom an...  
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 ...  

Matches 401 - 450 out of 752