Class / Patent application number | Description | Number of patent applications / Date published |
415400100 |
Natural fluid current force responsive
| 63 |
415400400 |
Vertical runner axis
| 8 |
415300100 |
Having specific features for water current
| 7 |
415400500 |
Axial flow runner | 5 |
20080267763 | Rotary machine including a passive axial balancing system - The invention relates to a rotary machine for passing a main liquid stream, the machine comprising:
| 10-30-2008 |
20120183387 | SHROUDED WIND TURBINE SYSTEM WITH YAW CONTROL - A wind energy systems includes a shroud for each turbine. The shroud is adapted to direct and accelerate wind towards the turbine. A strong adaptable support assembly is provided for securing turbines to a structure. An air glide yaw assembly facilitates rotational movement of the structure allowing the turbines to face oncoming wind. The turbine blades are optimized for use with a shroud. | 07-19-2012 |
20140301824 | WIND POWER GENERATION APPARATUS - A wind power generation apparatus includes a wind guiding structure, a rotary structure, a rotary shaft and a wind collecting hood. The wind collecting hood forms an airflow passage. The rotary shaft is located in the airflow passage. The rotary structure is mounted on the rotary shaft. The wind guiding structure is securely mounted on the wind collecting hood, and at a front end of the rotary structure. The wind guiding structure includes multiple airflow guiding vanes each having a windward portion, a leeward portion, and a curved portion between the windward portion and the leeward portion. A shortest distance between the windward portions of any two adjacent airflow guiding vanes is greater than a shortest distance between the leeward portions of the two adjacent airflow guiding vanes. An airflow having passed through the airflow passage is accelerated and converted to a swirling airflow by the curved portion. | 10-09-2014 |
20150016955 | FLUID DRIVEN ELECTRIC POWER GENERATION SYSTEM - A tubular housing can include at least one fixed helical vane formed onto the inner surfaces of the tubular housing in a spiral and adapted to direct fluid into a spiraled flow and focus fluid onto a fan blade assembly associated with an alternator system and located within the tubular housing before a system exhaust. A generator cone can be mounted near the center and front of the fan blade assembly facing fluid passing through the tubular housing. As fluid passes over the generator cone it experiences compression between the generator cone and housing resulting in increased pressure and velocity of the fluid, thereby increasing rotational speed of the generator blades and generator as the compressed, spiraled fluid passes through the blades and exits the tubular housing. The system can be used for fixed or mobile applications in water, wind and manually induced fluid flow. | 01-15-2015 |
20150110599 | EFFICIENT SYSTEMS AND METHODS FOR CONSTRUCTION AND OPERATION OF MOBILE WIND POWER PLATFORMS - In embodiments of the present invention improved capabilities are described for a mobile wind power support structure, comprising a superstructure with mobile platform support structures, and a plurality of deployable rotating wind power structures, wherein the plurality of deployable rotating wind power structures are positioned in the superstructure through a wind orientation facility. | 04-23-2015 |
Entries |
Document | Title | Date |
20080267762 | NACELLE ASSEMBLY HAVING INLET AIRFOIL FOR A GAS TURBINE ENGINE - A nacelle assembly includes an inlet lip section and an airfoil adjacent to the inlet lip section. The airfoil is selectively moveable between a first position and a second position to adjust the flow of oncoming airflow and to influence an effective boundary layer thickness of the nacelle assembly. | 10-30-2008 |
20090110537 | Gas Turbine Engine Systems Involving Integrated Fluid Conduits - Gas turbine engine systems involving integrated fluid conduits are provided. In this regard, a representative engine casing for a gas turbine engine includes: a casing wall; and a fluid conduit integrated into the casing wall. | 04-30-2009 |
20090142178 | Wind Turbine Tower And A Control System And Method For Altering The Eigenfrequency Of A Wind Turbine Tower - A wind turbine comprising a wind turbine rotor with at least one wind turbine blade, a wind turbine tower, such as a standard tubular steel tower, positioned on a foundation and connected to the wind turbine rotor through a wind turbine nacelle, and a control for establishing oscillation control values of the wind turbine. The wind turbine being capable of altering the load for optimizing the tower eigenfrequency in response to acquired values from the controls. The invention also relates to a control system and method for altering the eigenfrequency of a tower of a wind turbine. | 06-04-2009 |
20100284784 | PLACING WATER TURBINES IN WATER FLOWS - A floating turbine, including a vertical substantially fixed structure such as a pile or cable, a hydroelectric turbine, a connecting piece between the turbine and the structure that is operative to enable vertical motion of the turbine on the surface of the water. | 11-11-2010 |
20100329840 | FLOW DEFLECTION DEVICE CONSTRUCTION - New devices and methods for the construction of large Flow Deflection Devices (FDDs) are presented. | 12-30-2010 |
20110002773 | CIRCULAR RING, ROTATING DUCT, SHROUD, TRUNK AND CYLINDRICAL EXTERNAL WALL PREPARED BY LAMINATION OF SHEET BELT, AND APPARATUS AND METHOD FOR PREPARING THE SAME - The invention provides a ring, rotatable duct, shroud, fuselage or cylindrical external wall fabricated so as to have desirable strength even if its diameter exceeds about 2.7 meters by using arbitrary metallic and non-metallic materials. Such ring and others may be readily fabricated by laminating a thin sheet band made of metal, ceramics, cermet, fiber or synthetic resin of 0.01 mm to 5 mm thick or a thin sheet band made of rubber or silicon of 0.1 mm to 50 mm thick by winding around a giant spinning wheel by at least two rounds or more so as to form a longitudinal plate portion of 2 mm or more in radial thickness when the band is made of metal, ceramics, cermet, fiber or synthetic resin and to form such portion of 4 mm or more thick when the band is made of metal, ceramics, cermet, fiber, synthetic resin, rubber or silicon. | 01-06-2011 |
20110268555 | FRICTION BRAKE FOR WIND ENERGY SYSTEMS, WIND ENERGY SYSTEM AND METHOD FOR UPGRADING - A friction brake is provided for use in a wind energy system. The friction brake includes a piston adapted for being at least temporarily in contact with a braking surface, the piston having an outer circumferential surface that comprises a outer contact area. Further, the piston brake includes a housing for housing the piston, the housing having an inner surface that comprises a inner contact area wherein the inner contact area and the housing area are adapted for temporarily being in contact with each other. At least one of the inner contact area and the housing area is made of a non-metallic material. In addition, a wind energy system and a method for upgrading a wind energy system is provided. | 11-03-2011 |
20130058758 | WIND TURBINE INSTALLED ON THE TOP FLOOR OF A RESIDENTIAL BUILDING, PARTICULARLY IN AN URBAN AREA - A vertical axis wind turbine installed on the top floor of a residential building, particularly in an urban area, is provided with a rotor fitted with blades and actuated by the wind, thus driving a generator to provide electrical power. The wind turbine includes a wind-channelling base which extends through a funnel, particularly a diverging tapered funnel, at the neck of which the rotor is placed. The rotor includes a median channelling hub mounted on the inner part of the neck of the funnel. | 03-07-2013 |
20130142619 | FLUID TURBINE SYSTEMS - Various fluid turbine systems and methods are described. The turbine can be a vertical axis wind turbine configured to generate power from wind energy. The turbine system can have a blade assembly. The blade assembly can have a plurality of blades rotatable about an axis. The turbine system can have a concentrator positionable upwind and in front of a return side of the blade assembly. The concentrator can define a convex surface facing the wind. The turbine system can also have a variable concentrator positionable upwind of a push side of the blade assembly. The variable concentrator can be adjustable between a first position and a second position, the variable concentrator being capable of deflecting more wind toward the turbine in the first position than in the second position. | 06-06-2013 |
20130243569 | NACELLE FOR A WIND TURBINE - Disclosed is a nacelle for a wind turbine which includes a generator, a load-carrying structure, a support structure, an electrical system, a yaw system, a control system and a housing. The generator includes a rotating part and a stationary part and the stationary part is connectable to the load-carrying structure. The load-carrying structure includes the yaw system and the control system. The support structure includes the electrical system and the support structure is connectable to the load-carrying structure. The housing is segmented and is connectable to at least the load-carrying structure. The generator, the load-carrying structure and the support structure are separate modules and the separate modules and the segmented housing are connectable at an erection site of the wind turbine to build the nacelle. | 09-19-2013 |
20150104292 | Aero-hydroelectric power station - The invention relations to hydroelectric power industry and can be used for capturing the energy stored within atmospheric moisture at any locations worldwide. The device comprises a tail race ( | 04-16-2015 |
20160040595 | ADJUSTABLE SIZE INLET SYSTEM - An adjustable size inlet duct system for a ducted fan propulsion system may change its inlet profile to enhance thrust levels in low-speed and hovering flight conditions and may change its inlet profile to reduce drag to permit faster flight speeds at higher operating speeds. The adjustable size inlet duct system may include duct petals and associated actuators. During slow speed flight, the petals may expand to generate a rounded large inlet area bellmouth profile. At higher flight speeds, the petals may contract to reduce the profile drag of the duct in forward flight. An optional exterior bypass duct may be included to provide additional thrust in excess of the thrust provided by the ducted fan. An optional annular electric motor housed in the exterior bypass duct may be included to generate still more excess thrust. | 02-11-2016 |