Class / Patent application number | Description | Number of patent applications / Date published |
416023000 | WITH MEANS MOVING WORKING FLUID DEFLECTING WORKING MEMBER PART DURING OPERATION (E.G., AILERON, ETC.) | 64 |
20080226448 | PROFILE DEFORMATION USING THE EXAMPLE OF A ROTOR BLADE - An aerodynamic profile includes a main profile body defining a profile depth direction and being shear-flexible in the profile depth direction, a tension-stiff and compression-stiff upper covering skin, a tension-stiff and compression-stiff lower covering skin, wherein the upper and lower covering skins envelope the main profile body, a bearingless and hingeless rear profile deformation region disposed at a rear edge region, and at least one actuator disposed in the main profile body. The at least one actuator is configured to initiate a flexural motion of the main profile body resulting in a curvature of the upper and lower covering skins and to deform the rear profile deformation region and so as to yield a flap deflection directed opposite to a direction of the flexural motion. | 09-18-2008 |
20080286101 | FAN WITH POWER ADJUSTABLE HOUSING - A ceiling mounted fan comprising: a first housing portion; a second housing portion; and a motive unit operably coupled to the second housing portion, wherein the motive unit is configured to adjust a position of the second housing portion from a position proximate to the first housing portion to a position distal to the first housing portion. | 11-20-2008 |
20090028704 | WIND TURBINE BLADE WITH CAMBERING FLAPS - A wind turbine having at least a blade comprising a first component ( | 01-29-2009 |
20090028705 | Wind turbine blade with deflectable flaps - A wind turbine having at least a blade comprising a first component ( | 01-29-2009 |
20090053060 | Wind turbine blade control system - Wind turbines or generators are provided with a larger operating range, and made more efficient through the use of controlling the Bernoulli Effect on air foil blades. The control is effected through the use of rotating bands arranged over at least part of the surface of the blades. The direction of the moving bands is reversible so as to increase or decrease the lift provided by the Bernoulli Effect. In the present invention, greater torque can be developed on the wind generator without increasing the wind speed. | 02-26-2009 |
20090074573 | WIND TURBINE BLADE WITH CAMBERING FLAPS CONTROLLED BY SURFACE PRESSURE CHANGES - A wind turbine having at least a blade comprising a first component ( | 03-19-2009 |
20090148285 | MULTI-SECTION WIND TURBINE ROTOR BLADES AND WIND TURBINES INCORPORATING SAME - A multi-section blade for a wind turbine comprising at least one non-pitchable section and at least one pitchable section is provided. The non-pitchable section is configured to be fixed to a hub of the wind turbine. The pitchable section is configured to be rotated about a pitch axis which is substantially parallel to the span of the multi-section blade. A pitch bearing and a pitch motor are located within the blade and near the non-pitchable section and pitchable section interface. | 06-11-2009 |
20090162199 | SELF LOCKING TRIM TAB - A trim tab assembly includes first and second shape memory alloy (SMA) actuators and a trim tab substrate which provide elastic/plastic locking in response to an induced strain actuation. | 06-25-2009 |
20090191057 | Multi-Axis Wind Turbine With Power Concentrator Sail - A wind energy to electrical power conversion device provides a protected multiple turbine mechanism axially aligned to convert kinetic energy of air movement, i.e. wind (or other moving fluid such as water), into rotational mechanical power to directly create electrical energy by the reaction of the wind with the turbine. The present wind energy to electrical power conversion device may either be configured as a vertical axis wind turbine (VAWT) or horizontal axis wind turbine (HAWT). An associated wind gathering sail automatically repositions itself to maximize wind intake and to collect and concentrate the wind prior to converting the wind into energy via the axially aligned multi-turbine mechanism into electrical energy. The remaining wind is released via a leeward-facing exhaust. The present axially aligned multi-turbine mechanism avoids interference by birds and other outside objects due to its inherent structural visibility. | 07-30-2009 |
20090269198 | ROTOR BLADE FOR A ROTARY WING AIRCRAFT - A rotor blade including a rotor blade profile including a profile tip region, a profile trailing edge region including a trailing edge and a profile body having a profile core. A covering skin including an upper skin and a lower skin encase the profile core. A reversibly bendable flexural actuator including a first actuator end disposed at the trailing edge region of the rotor blade profile and a second actuator end projecting past the profile body toward the trailing edge. The second actuator end forms part of the trailing edge region and forms a movable rotor blade flap, the movable rotor blade flap being deformable into an arc-shaped rotor blade flap deflection upon a bending of the flexural actuator. | 10-29-2009 |
20100215493 | Wind Turbine Blade And Method For Controlling The Load On A Blade - A wind turbine blade includes a blade body and lift-regulating mechanism adapted for movement in relation to the blade body by at least one actuation mechanism controlled by an actuation controller. The actuation controller controls a setting of the lift-regulating mechanism based on an input from a sensor, and the sensor is a force sensor adapted for sensing a force from a wind flow acting on the lift-regulating mechanism, whereby a wind turbine blade with fast-responding lift-regulating mechanism is provided. | 08-26-2010 |
20100232960 | VARIABLE GEOMETRY TURBINE - There is provided a turbine having rotating blade surfaces that adjust their geometry based on incident fluid flow. In one aspect, there is provided a turbine having a least one pair of blades rotatably connected such that their geometry is adjusted based on incident fluid flow. In another aspect, there is provided, a turbine having at least one pair of blades connected such that they self-orient themselves to a neutral position under their own weight. In yet another aspect, there is provided, a control surface for a turbine blade which prevents meta-stable stall of the turbine blade in an fluid stream. | 09-16-2010 |
20100310372 | ACTUATION OF MOVABLE PARTS OF A WIND TURBINE ROTOR BLADE - A rotor blade for a wind turbine comprises a rotor blade body with a root for connecting the rotor blade to a hub of a wind turbine, a tip, a leading edge and a trailing edge. The blade has a movable part, and motion transmitting means for connecting to an actuator being placed preferably outside the blade body, and transmitting motion from the actuator to the movable part. The motion transmitting means is electrically non-conductive, whereby the risk of lightning stroke accidents is reduced. | 12-09-2010 |
20110070084 | ELECTRIC FAN CAPABLE TO MODIFY ANGLE OF AIR SUPPLY - An electric fan can comprise: an oscillating motor configured to drive an upper shell to rotate; a fan motor connected with blades of the electric fan; a control unit mounted with the oscillating motor configured to modify an oscillating angle of the electric fan by changing an interval of positive and negative rotation of the oscillating motor; a control panel connected with the control unit configured to operate the electric fan; and a transformer unit configured to connect supply power to the control unit, the oscillating motor, the control panel, and the fan motor. | 03-24-2011 |
20110110777 | ACTIVE FLOW CONTROL DEVICE AND METHOD FOR AFFECTING A FLUID BOUNDARY LAYER OF A WIND TURBINE BLADE - An active flow control device ( | 05-12-2011 |
20110116927 | Wind Turbine Blade - The invention relates to a wind turbine blade with at least one control surface and an actuator inside the main body of the wind turbine blade for moving the control surface, wherein the actuator comprises a fluidic muscle, a controller and a pump, and wherein the fluidic muscle is adapted to change in length and width when the pressure of the fluid within the fluidic muscle is varied. | 05-19-2011 |
20110135472 | AERODYNAMIC FLIGHT CONTROL SURFACE SAID OF CROCODILE STYLE FOR AIRCRAFT - A trailing edge aerodynamic airfoil of a load-bearing aerodynamic surface of an aircraft of the crocodile type has two airfoil flaps, with each flap being integral in a forward section with a rotational shaft that determines the axis of rotation of the airfoil flap. In a position called the zero setting, the airfoil flaps are essentially joined and form a rear section of the load-bearing surface, and each airfoil flap is movable in translation independently of the other airfoil flap, relative to the load-bearing surface, with each flap being entrained in rotation relative to the load-bearing surface around its axis of rotation by the motion in translation. The ends of the rotational shaft have extensions guided by runners fastened to these ends and acting conjointly with racks fastened to the load-bearing surface. | 06-09-2011 |
20110142628 | WIND TURBINE BLADES WITH CONTROLLABLE AERODYNAMIC VORTEX ELEMENTS - A wind turbine blade has a suction side surface and a pressure side surface. A plurality of dynamic vortex elements are formed on at least one of the suction side or the pressure side surfaces. The vortex elements are activatable between a first retracted position that is inwardly recessed relative to a neutral plane of the surface on which they are formed and a second extended position that is outwardly protruding relative to the neutral plane of the surface. | 06-16-2011 |
20110142629 | WIND TURBINE ROTOR BLADE WITH POROUS WINDOW AND CONTROLLABLE COVER MEMBER - A wind turbine blade includes a porous window defined in the suction side of the blade. The porous window is permeable to airflow from within an internal cavity of the blade through the suction side. A deployable cover member is configured with the porous window and is variably positionable from a fully closed position wherein airflow through the porous window is blocked, to a fully open position wherein airflow is established through an entirety of the porous window. An actuating mechanism is disposed within the internal cavity of the blade and is configured with the cover member to move the cover member between the fully closed and fully open positions in response to a control signal. | 06-16-2011 |
20110206509 | WIND TURBINE, AERODYNAMIC ASSEMBLY FOR USE IN A WIND TURBINE, AND METHOD FOR ASSEMBLING THEREOF - The present disclosure relates to a wind turbine ( | 08-25-2011 |
20110217167 | CONTROL SYSTEM IN WIND TURBINE BLADES - The invention relates to a wind turbine blade with devices for modifying the aerodynamic surface or shape of the blade. The position and movement of these devices are controlled by a pneumatic actuator powered by pressure from a pressure chamber connected to the actuator via a valve system controlling the powering. The valve system in return is operated by a control unit conveying control signals to the valve system via a signal communication pathway. The communication pathway may comprise a power link or pressure tubes with a liquid or a gas. In one embodiment the gas used is of a lower molecular weight than 28.9 kg/kmol and thereby lower than air, whereby the speed of the pressure signals being sent from the control unit is increased and thereby the operational speed of the aerodynamic devices. The invention further relates to a wind turbine comprising a tower, a nacelle mounted to one end of the tower, and a rotor with at least one wind turbine blade according to the above. | 09-08-2011 |
20110223022 | ACTUATABLE SURFACE FEATURES FOR WIND TURBINE ROTOR BLADES - A rotor blade for a wind turbine is disclosed. The rotor blade may generally include a shell having a pressure side and a suction side. The shell may define an outer surface along the pressure and suction sides over which an airflow travels. The rotor blade may also include a spoiler movable relative to the outer surface between a recessed position and an actuated position. The spoiler may generally be configured to separate the airflow from the outer surface when the spoiler is in the actuated position. Additionally, the spoiler may generally be linearly displaced between the recessed and actuated positions. | 09-15-2011 |
20110236208 | ROTARY WING BLADE, A ROTARY WING INCLUDING SUCH A BLADE, AND AN AIRCRAFT | 09-29-2011 |
20110255968 | ADJUSTER DEVICE FOR AN AIRCRAFT, COMBINATION OF AN ADJUSTER DEVICE AND AN ADJUSTER DEVICE FAULT RECOGNITION FUNCTION, FAULT-TOLERANT ADJUSTER SYSTEM AND METHOD FOR RECONFIGURING THE ADJUSTER SYSTEM - An adjustment device to be coupled to an adjustment flap of an aircraft, with an actuator, adjustment kinematics, and a gearing, wherein the adjustment device can be coupled to a controller/monitor for purposes of its actuation. The adjustment device includes a first load sensor, on the input side of the actuator for determining the load arising on the input side due to actuation of the adjustment flap, and a second load sensor, on the output side of the actuator for determining the load arising on the output side due to actuation. The first load sensor and second load sensor are functionally linked with a fault-recognition function for receiving sensor values ascertained by the load sensors, to assign a fault state to the adjustment device. A combination of an adjustment device and a fault recognition function, a fault-tolerant adjustment system, and a method for reconfiguring the adjustment system are also provided. | 10-20-2011 |
20110293420 | WIND TURBINE BLADE WITH DEVICE FOR CHANGING THE AERODYNAMIC SURFACE OR SHAPE - The invention relates to a wind turbine blade comprising a device for modifying the aerodynamic surface or shape of the blade in an area of the trailing edge, and activation mechanisms for controlling the position and/or movement of the device. The device is at least partly divided into a number of sections by interstices or connecting portions having a higher elasticity. Hereby the overall longitudinal bending flexibility of the device is increased which in turn increases the operability of the aerodynamic device and reduces the wear of the system. The interstices may be open, comprise a filler material, or optionally be covered by an elastic film. | 12-01-2011 |
20120009064 | WIND TURBINE BLADE WITH VARIABLE TRAILING EDGE - The present invention relates to a wind turbine blade for a rotor of a wind turbine having a substantially horizontal rotor shaft. The blade may comprise a profiled contour comprising a pressure side and a suction side as well as a leading edge and a trailing edge, a chord extending between the leading edge and the trailing edge, and the profiled contour generating a lift when being impacted by an incident airflow. In a cross section of the wind turbine blade perpendicular to a lengthwise direction of the wind turbine blade, a suction side point is defined on the suction side at the trailing edge of the blade, and a pressure side point is defined on the pressure side at the trailing edge of the blade. The suction side point is movable in relation to the pressure side point, and the blade is further provided with a displacement device configured to displace the pressure side point and the suction side point so that a distance between the suction side point and the pressure side point can be varied. The present invention further relates to a wind turbine including such a wind turbine blade and to a method of operating a wind turbine including such a wind turbine blade. | 01-12-2012 |
20120014792 | CIRCULATION CONTROLLED VERTICAL AXIS WIND TURBINE - A circulation controlled vertical axis wind turbine is presented. The circulation controlled vertical axis wind turbine comprise one or more airfoils in communication with the turbine via a rotatable support shaft and an airfoil support structure. The one or more airfoils have a blowing slot disposed near the trailing edge, and a controller and control means modulates a flow of air between the blowing slot and an internal cavity of the airfoil. | 01-19-2012 |
20120070283 | HINGED CONNECTION APPARATUS FOR SECURING A FIRST WIND TURBINE COMPONENT TO A SECOND - A hinged connection apparatus is described for securing a first wind turbine component to a second. The first wind turbine component may be a wind turbine blade ( | 03-22-2012 |
20120070284 | HINGE APPARATUS FOR CONNECTING FIRST AND SECOND WIND TURBINE BLADE COMPONENTS COMPRISING A ROTARY ACTUATOR - A hinged connection apparatus is described for securing a first wind turbine blade component to a second. The first wind turbine component may be a wind turbine blade body ( | 03-22-2012 |
20120134814 | WIND TURBINE ROTOR BLADE WITH FAIL-SAFE AIR BRAKE FLAPS - A wind turbine blade includes an air brake flap flush mounted within a recess in the suction side of the blade. The air brake flap is actuatable from a retracted position within the recess to an open position wherein the air brake flap extends transversely or vertically from the suction side. A fail-safe actuator is operatively coupled to the air brake flap and is configured to hold the air brake flap at the retracted position in a powered state of the actuator and to release the air brake flap to the open position upon loss of power to the actuator. | 05-31-2012 |
20120134815 | BLADE EXTENSION FOR ROTOR BLADE IN WIND TURBINE - A blade extension for a rotor blade and a rotor blade assembly for a wind turbine are disclosed. The rotor blade assembly includes a rotor blade having exterior surfaces defining a pressure side, a suction side, a leading edge, and a trailing edge each extending in a generally span-wise direction between a tip and a root. The rotor blade assembly further includes a blade extension including a first panel and an opposed second panel. Each of the first panel and the second panel includes an interior surface and an exterior surface each extending between a proximal end and a distal end. The distal end of each of the first panel and the second panel is spaced apart from the rotor blade in a generally chord-wise direction in a standard operation position. | 05-31-2012 |
20120141271 | ACTUATABLE SPOILER ASSEMBLIES FOR WIND TURBINE ROTOR BLADES - A rotor blade for a wind turbine is disclosed. The rotor blade may generally include a shell having a pressure side and a section side. The shell may define an outer surface along the pressure and suction sides over which an airflow travels. Additionally, the rotor blade may include a spoiler assembly having a deformable membrane disposed adjacent to the outer surface. The deformable membrane may be configured to be deformed relative to the outer surface such that at least a portion of the deformable membrane is movable between an un-actuated position to an actuated position. Additionally, the at least a portion of the deformable membrane may be configured to separate the airflow from the outer surface when in the actuated position. | 06-07-2012 |
20120141272 | WIND TURBINE ROTOR BLADE WITH PASSIVELY MODIFIED TRAILING EDGE COMPONENT - A wind turbine rotor blade includes a root portion and an airfoil portion extending from the root portion and defined by a leading edge and a trailing edge. The airfoil portion further includes a main foil section and a trailing edge section that is pivotally connected to the main foil section along a span-wise extending hinge line. A passive torsion element is coupled between the main foil section and the trailing edge section. The torsion element is biased to a neutral position wherein the trailing edge section is pivoted chord-wise to a low wind speed position relative to the main foil section. The trailing edge section is self-actuating from the low wind speed position to an increased wind speed position relative to the main foil section against as a function of the biasing force of the torsion element and wind speed over the airfoil section. | 06-07-2012 |
20120224964 | COMPOUND MOTION STRUCTURE - A compound motion structure ( | 09-06-2012 |
20120224965 | CONTROL OF WIND TURBINE BLADE LIFT REGULATING MEANS - The invention involves a wind turbine comprising at least one blade ( | 09-06-2012 |
20120243992 | WIND TURBINE BLADE - A partial pitch wind turbine blade in which the pitch system of the blade functions as a lightning receptor. As the pitch system is of a relatively large dimension, it is able to dissipate the effects of a lightning strike without damage, and removes the needs for additional blade features normally used to conduct lightning around or away from the pitch system. | 09-27-2012 |
20120328435 | Furling Mechanism for a Vertical Axis Turbine - A furling mechanism for a sail of a vertical axis turbine, the furling mechanism comprising: first and second elongate furling spars attachable to first and second edges of the sail; wherein each of the first and second furling spars are rotatable about their respective longitudinal axis such that, in use, rotation of the first and/or second furling spar causes the sail to be furled or unfurled. | 12-27-2012 |
20130089422 | ADAPTIVE TWIST SYSTEM FOR A ROTOR BLADE - The system of the present application includes an adaptive twist system for a rotor blade. The adaptive twist system includes a slider mechanism coupled to a spar and to a skin. The slider mechanism provides structural connectivity between the spar and the skin while also selectively translated the skin relative to the spar, thereby causing the rotor blade to twist. A control system is used to operate the slider mechanism so that the rotor blade is automatically twisted into the optional shape during changes in flight modes. | 04-11-2013 |
20130121826 | FLUID INTERFACE DEVICE AS WELL AS APPARATI AND METHODS INCLUDING SAME - A fluid interface device, such as an airfoil assembly, can include a device structure and at least one movable band oriented such that the band moves in a direction of fluid flow. The at least one movable band can be supported on the device structure such that an outer surface of the movable band is exposed along the device structure and is capable of movement relative thereto such that a relative velocity can be maintained between the outer surface and the device structure. The fluid interface device can also include an edge extension disposed along the leading edge of the device structure. An airplane, a wind turbine and a method are also included. | 05-16-2013 |
20130177419 | WIND TURBINE - The invention relates to a wind turbine, comprising a hub, at least one blade, said blade being pivotably installed at said hub, at least one pitch bearing, said pitch bearing having an inner bearing ring and an outer bearing ring, said inner bearing ring having an inner wall in radial direction and a first end and a second end in axial direction and at least one reinforcing element to enhance the stiffness of said pitch bearing, wherein the reinforcing element is arranged adjoining the inner wall of the inner bearing ring. | 07-11-2013 |
20130216379 | FLUID DRIVEN VERTICAL AXIS TURBINE - A fluid turbine comprises a rotor rotatable in use about an axis transverse to the direction of fluid flow, the rotor having a first part carrying a plurality of arcuate blades that may be arranged selectably in compact straight shapes or in arcuate shapes and a second part journalled in a base structure by two or more bearings. Another aspect of the invention discloses an installation frame, devised to support the turbine or other elongated structures in a folded arrangement for transportation on a trailer, and to support assembly and erection thereof. | 08-22-2013 |
20130216380 | MECHANISM FOR SYNCHRONOUSLY VARYING PITCH OF A MULTI-BLADE ROTOR - A mechanism for synchronously varying pitch of a multi-blade rotor, such as rotors used in wind or hydraulic generator and helicopter is provided in the present invention. Said sync-pitch-varying mechanism for the rotor mainly comprises a bearing a driver, a transmission, a linkage and a control unit, wherein said transmission includes a shaft coupling, a ballscrew, an intermediate cylinder, a driven shaft and a transition cylinder; said linkage includes a link hub, a guide support and multiple links; said control unit includes a speed sensor, a position sensor, a switch and a programmable controller; a rotatory driving force output by said driver through the shaft coupling is transmitted to the driven shaft through a screw-and-nut transmission between the ballscrew and the intermediate cylinder of said transmission so as to drive the driven shaft to move in a linear motion which is then transferred from the driven shaft to the link hub of the linkage through means of the transition cylinder; said controller is configured to enable the driven shaft to move reciprocally within a predefined range of length in order to move the link hub back and forth along the guide support in an axial direction thereof, and therefore multiple bearings for supporting the blades of the rotor are rotatably movable through the multiple links of the link hub | 08-22-2013 |
20130251525 | Lift Propulsion and Stabilizing System and Procedure For Vertical Take-Off and Landing Aircraft - Lift propulsion and stabilizing system and procedure for vertical takeoff and landing aircraft that consists in applying simultaneously and combined as lifters during the initial portion of the climb and at the end of the descent of: a) some fans or electric turbines, EDF, and b) at least one rotor with external blades and/or rotary and/or c) the engine flow directed downwards and/or d) pressure air jets injected on leading edges control fins, and/or e) water jets and/or f) supplemented with aerodynamic lift produced during frontal advance of the aircraft, the stabilization is achieved by the gyroscopic stiffness of the rotor and two or more lifting fans oscillating fins and/or air jets located on two or stabilizers more peripheral points in a plane perpendicular to the vertical axis of the aircraft. | 09-26-2013 |
20130259689 | SLAT WITH TIP VORTEX MODIFICATION APPENDAGE FOR WIND TURBINE | 10-03-2013 |
20130309091 | OIL SUPPLY SYSTEM FOR A PROPELLER TURBINE ENGINE - An oil supply system for a propeller turbine engine including a propeller, a propeller gearbox connected to the propeller and a propeller adjusting device for altering the pitch angle of the propeller blades. The system includes an oil circuit and a propeller main pump for supplying the propeller gearbox and a propeller high-pressure pump supplying the propeller adjusting device with oil. The system includes an oil accumulator for providing, in the event of an undersupply of oil by the propeller main pump, oil contained in the oil accumulator to the inlet of the propeller high-pressure pump such that the pump inlet pressure at the inlet of the propeller high-pressure pump does not fall short of a certain minimum value. The oil accumulator is incorporated into the inflow to the propeller high-pressure pump to be continuously supplied and charged with oil of the propeller main pump. | 11-21-2013 |
20130336787 | DRY LUBRICATED LINEAR ACTUATOR FOR IN BLADE ROTOR CONTROL - A rotor blade assembly includes a rotor blade and a rotatable flap portion located along a span of the rotor blade. A linear actuator located inside the rotor blade is operably connected to the flap portion to rotate the flap portion about a flap axis and is absent oil, grease or other fluid lubricant. A rotary-winged aircraft includes an airframe and a main rotor assembly operably connected to the airframe. The main rotor assembly includes a plurality of rotor blade assemblies rotatable about a rotor assembly axis. At least one rotor blade assembly of the plurality of rotor blade assemblies includes a rotor blade and a rotatable flap portion located along a span of the rotor blade. A linear actuator positioned inside the rotor blade is operably connected to the flap portion to rotate the flap portion about a flap axis and is absent oil, grease or other fluid lubricant. | 12-19-2013 |
20140003940 | APPARATUS AND METHOD FOR AERODYNAMIC PERFORMANCE ENHANCEMENT OF A WIND TURBINE | 01-02-2014 |
20140003941 | HYDRUALIC CONTROL VALVE, A DEVICE FOR ADJUSTING BLADE PITCH, AND AN AIRCRAFT PROVIDED WITH SUCH A HYDRAULIC CONTROL VAVLE | 01-02-2014 |
20140044542 | MAXIMALLY EFFICIENT VERTICAL AXIS WIND TURBINE - A maximally efficient vertical axis wind turbine (MEVAWT) includes a rotatable circular frame having upper and lower concentric flat rings or disks which support a plurality of, typically three, four, five or six, pivotable cascades, each including a plurality of fixed, configurable airfoils. The airfoils preferably include a single, pivotable trailing flap and may include lateral extensions. The center and periphery of the lower ring are supported in suitable bearings to facilitate free rotation of the frame. Wind direction and velocity sensors provide data utilized to control drive mechanisms which orient each cascade and the flap of each airfoil to maximize the resultant power produced by the turbine. | 02-13-2014 |
20140064965 | ACTUATION SYSTEM FOR AN ACTIVE ELEMENT IN A ROTOR BLADE - In accordance with one embodiment of the present application, an actuation system is configured for actuation of an airfoil member with a flap mechanism. The actuation system can include an upper drive tape and a lower drive tape, each partially wrapped around a first bearing and second bearing. An inboard frame can be actuated by at least one linear actuator. Similarly, an outboard frame can be actuated by at least one linear actuator. The inboard frame is coupled to the upper drive tape, while the outboard frame is coupled to the lower drive tape. An actuation of the inboard frame and outboard frame in a reciprocal manner acts move a flap input lever reciprocally upward and downward. A flap mechanism is configured to convert the movement of the flap input lever into rotational movements of the airfoil member. | 03-06-2014 |
20140099204 | BRAKING DEVICES FOR VERTICAL AXIS WIND TURBINES - Braking devices for wind turbines having a vertical axis are disclosed. An example braking device includes a flap able to tip about a tipping axis. The example flap has a center of gravity positioned outside the tipping axis. In addition, the example braking device disclosed herein includes a torque limiter having a disengagement torque. In addition, the example flap is mounted on the torque limiter, and the torque limiter is to allow the flap to tip through a tipping angle about the tipping axis for a rotational speed of the flap about the vertical axis which induces a torque at the torque limiter greater than or equal to the disengagement torque. | 04-10-2014 |
20140127016 | BAND-TYPE FAN STRUCTURE - A band-type fan structure includes a transmission band body and multiple blades. The transmission band body has a lengthwise direction and a widthwise direction. The blades are side by side disposed on the transmission band body in parallel to each other and arranged in the lengthwise direction of the transmission band body. Each two adjacent blades define therebetween a flow way. The transmission band body is movable in the lengthwise direction, whereby the blades are driven by the transmission band body to transversely move to create an air volume. The band-type fan structure has a greatly minified volume. Also, the band-type fan structure overcomes the shortcoming of unstable operation of the conventional fan caused by deflection of the blades. | 05-08-2014 |
20140186180 | Switchable Vortex Generator and Array Formed Therewith, and Uses of the Same - A vortex generator is useable in a model in a fluid-dynamic channel. In order to save time during the development of vehicles, in particular, aircraft, to save wind tunnel time, it is suggested to configure the vortex generator to be switchable. A switchable vortex generator can be used, in particular, on models in fluid-dynamic channels and in fluid-dynamic channel tests. | 07-03-2014 |
20140234104 | ROTOR BLADE WITH CONTROL FLAP - A rotor blade ( | 08-21-2014 |
20140271191 | MOUNTING ARRANGEMENT FOR LOAD COMPENSATING DEVICE - A mounting arrangement for a load compensating device is provided. The mounting arrangement includes a cover sheet connected to a housing via a plurality of protrusions. The cover sheet may form a portion of a surface of an airfoil rotor blade. The housing may include a plurality of clamps extending outward from the housing and configured to contact an inner surface of the airfoil rotor blade. By tightening the clamps onto the interior surface, the device is mounted to the blade and the cover sheet may deform to correspond to the airfoil geometry of the airfoil rotor blade. The mounting arrangement may further include a mounting plate configured to permit the housing to float within the aperture formed in the airfoil rotor blade, and a tab arranged on one end of the mounting plate to distribute centrifugal force to the surface of the airfoil rotor blade. | 09-18-2014 |
20140271192 | ACTUATION MECHANISMS FOR LOAD MANAGEMENT DEVICES ON AERODYNAMIC BLADES - Systems, apparatuses, and methods are provided for actuating one or more load management devices on a wind turbine and/or a wind turbine blade. Each actuator may exhibit one or more beneficial qualities including appropriate actuation speed/force characteristics, size and/or weight characteristics, and/or increased reliability and consistent operation in a variety of operating conditions. According to some aspects, the actuator may be a direct pneumatic actuator, a ramp slide pneumatic actuator, a scissor actuator, a linear induction actuator, a belt actuator, a closed cam follower actuator, a screw drive actuator, a solenoid actuator, a rack and pinion actuator, a cylindrical cam follower actuator, a Y-belt actuator, an offset rotary drive actuator, a tape style actuator, a rigid tape actuator, a deformable membrane actuator, a memory alloy actuator, and/or a crank slide actuator. | 09-18-2014 |
20150010400 | WIND TURBINE ROTOR BLADE HAVING A SPOILER - A rotor blade for a wind turbine is disclosed. The rotor blade may generally include a shell having a pressure side and a suction side. The shell may define an outer surface along the pressure and suction sides over which an airflow travels. The rotor blade may also include a spoiler having a fixed end and a free end. The fixed end is connected to the outer surface so as to enable a hinge action, such as a living hinge. The free end includes a top flange and a bottom flange configured to engage opposite sides of the shell and is pivotal relative to the fixed end between a recessed position and an elevated position. The free end has a range of motion limited by contact of the top flange and the bottom flange with the shell. Further, the spoiler is configured to separate the airflow from the outer surface when the spoiler is in the elevated position. | 01-08-2015 |
20150010401 | FLEXBEAM HINGE FOR HELICOPTER BLADE ACTIVE TRAILING EDGE FLAP - A flexbeam for a rotor blade is provided and includes a first end coupled to a body of the rotor blade and a second end coupled to a flap disposed along a trailing edge of the body to pitch about a pitching axis defined along a span of the body and a flexbeam body extending from the first end to the second end and being configured to retain the flap under a first loading and being flexible about the pitching axis. | 01-08-2015 |
20150098821 | REVERSE FLOW LOAD MITIGATION DEVICE FOR A WIND TURBINE BLADE - A reverse wind load mitigation device ( | 04-09-2015 |
20160252073 | BLADE FOR A ROTOR OF A WIND TURBINE PROVIDED WITH BARRIER GENERATING MEANS | 09-01-2016 |
416024000 | Cyclic movement of member or part | 4 |
20090092490 | Aperture and Flap Vertical Axis Wind Machine - A vertical axis wind machine having a mechanism of apertures and flaps to reduce return blade wind drag. The aperture and flap vertical axis wind machine has improved rotational speed and torque in relation to existing vertical axis wind machines. The aperture and flap vertical axis wind machine is also quieter, has fewer moving parts, requires no feathering controls to operate in high wind speeds, and can be operated independent of wind direction. | 04-09-2009 |
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