| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 416120000 | PLURAL IMPELLERS HAVING RELATIVE MOVEMENT OR INDEPENDENT SUPPORTS | 80 |
| 20090196748 | WIND TURBINE IMPROVEMENTS - A wind turbine arrangement is disclosed that includes a substantially vertical tower mounted to a ground surface, a horizontally-extending hub rotatably fixed in a substantially horizontal plane to an upper end of the tower, at least one radial support arm rotatably fixed with a distal end of the hub, each support arm including a turbine mounting means at a distal end thereof, and at least one electricity-generating turbine selectively mountable with the turbine mounting means of the any of the support arms. An elevator means adapted to raise and lower each of the turbines between an upper loading position adjacent to a lower loading position of each support arm, and a lower loading position adjacent to the ground surface. In use, each support arm may be rotated to the loading position for receiving one of the turbines thereon. The support arm is then rotated about the hub into an operating position. | 08-06-2009 |
| 20090311099 | Banded turbine - A banded turbine configuration has an integral outer band support structure capable of providing two point simple support for a multiplicity of blades. A large scale vertical array has a set of twelve 23 m-diameter banded turbines with up to nine blades and resting on an Open Web Steel Joist (OWSJ) platform. The banded turbine configuration is supported off of a main shaft hub assembly, which is supported by forward and aft pillow block bearing assemblies. The banded turbine allows for a protective screen for bird- and bat-kill prevention. Each banded turbine employs DC alternators to provide a switchable output which is subsequently fed to a dedicated set of high efficiency grid-compatible solid state invertors or, alternatively, to energy storage. | 12-17-2009 |
| 20100003136 | Windmill tower - The Wind Mill Tower is a new concept of catching the wind force with more efficiency using the wind force at different levels the Wind Mill Tower consist in the superimposition of several nucleus connected by a main shaft to form a Tower of the vertical Wind Mill, because the atmosphere is compose of various layers of wind, as higher as more strong wind you get, that is the reason of multi modules. | 01-07-2010 |
| 20100086404 | DRIVE DEVICE FOR DRIVING FIRST AND SECOND LIFT ROTORS OF A ROTORCRAFT HAVING TWIN ROTORS IN TANDEM - A drive device (D) for driving first and second lift rotors ( | 04-08-2010 |
| 20100150718 | EFFICIENT SYSTEMS AND METHODS FOR CONSTRUCTION AND OPERATION OF ACCELERATING MACHINES - In embodiments of the present invention improved capabilities are described for the efficiency with which fluid energy is converted into another form of energy, such as electrical energy, where an array of fluid energy conversion modules is contained in a scalable modular networked superstructure. In certain preferred embodiments, a plurality of turbines, such as for instance wind turbines, may be disposed in an array, where the plurality of arrays may be disposed in a suitable arrangement in proximity to each other and provided with geometry suitable for tight packing in an array with other parameters optimized to extract energy from the fluid flow. In addition, the turbines may be a more effective adaptation of a turbine, or an array of turbines, to varying conditions, including fluid conditions that may differ among different turbines in an array, or among different turbines in a set of arrays. | 06-17-2010 |
| 20100209249 | Counter-rotating fluid-propelling apparatus - A counter-rotating fluid-propelling apparatus ( | 08-19-2010 |
| 20100215495 | TAPERED HELICAL AUGER TURBINE TO CONVERT HYDROKINETIC ENERGY INTO ELECTRICAL ENERGY - A helical auger turbine and hydrokinetic device for use with electrical generators for producing electricity. The auger turbine includes a generally helical turbine blade rotatably mounted on a central shaft, which may be tapered at each end, and a flange extending perpendicularly to an edge of the turbine blade. At least one turbine blade support connection is included for connecting the central shaft to a support structure. An electrical generator may be powered by the helical auger turbine, that can be used in a tidal water flow. The helical auger turbine can operate a high pressure pump connected to a hydraulic accumulator for storing pressurized hydraulic fluid from the high pressure pump. An electrical generator can be operated by hydraulic fluid delivered from the hydraulic accumulator at times of slow water flow. A plurality of helical auger turbines can be horizontally oriented under water, tethered to legs of an ocean platform such as an oil rig secured to the seabed. | 08-26-2010 |
| 20100260604 | TWO-DIMENSIONAL ARRAY OF TURBINES - Arrangements of turbines are described. The turbines are staggered or aligned in the downwind direction. | 10-14-2010 |
| 20100296928 | Wind turbine accelerator panels and method of making same - A vertically sectioned cylindrical accelerator for mounting pairs of wind turbines respectively on opposite sides thereof has a covering of twin-sheet thermoformed plastic panels which are smooth on the outside but carry a multiplicity of small cone-shaped projections on their interior surface. The panels are mounted on a structural member by a single central bolt for free expansion and contraction with variation in ambient temperature. The panels are manufactured in a twin-sheet thermoforming operation wherein one sheet is maintained with a smooth surface and the second sheet is provided with the cone-shaped projections, the two sheets being fused together to form an integral panel of lightweight and high strength characteristics. | 11-25-2010 |
| 20110033295 | Fluid-propelling device having collapsible counter-rotating impellers - A counter-rotating fluid-propelling apparatus uses an oblong drive mechanism being oriented substantially orthogonal to the axes of rotation of a pair of counter-rotating impellers and which temporarily and simultaneously engages the edges of the impellers while they are in substantial contact. Each impellers can include a number of substantially rectangular planar panels, hingedly connected to one another along common edges to vertices. Each impeller has an axis of rotation that passes lengthwise through the middle of the impeller such that the axis is parallel to and equidistant from the panel edges. The impellers counter-rotate and remain in constant contact with respect to one another. During each revolution of the impellers, each of the panels of one impeller contacts its counterpart on the other impeller so that planar panels meet flat surface to flat surface and vertex to vertex. The impellers collapse so that constant contact is maintained. A paddled drive belt successively engages drive pins extending from the vertices and pushes them in order to drive the impellers. | 02-10-2011 |
| 20110076146 | Wind turbine electrical generating system with combined structural support members and straightening vanes - A wind turbine electrical-generating system with air-directing vanes in the forms of sheaths over structural members crossing the sir discharge opening of the wind turbines. The turbines also have associated shroud assemblies which support the structural members and which cooperate with the vanes to provide superior performance. | 03-31-2011 |
| 20110081243 | Helical airfoil wind turbines - An improved wind energy generator is described. This invention is a wind turbine that utilizes airfoils in unique designs that are made of lightweight materials. The turbine is manufactured by low cost production methods as portable units that are stacked in series to provide for significant power harvesting. The use of three dimensional twisted airfoils enable high efficiency and easy start up. | 04-07-2011 |
| 20110085907 | TAPERED HELICAL AUGER TURBINE TO CONVERT HYDROKINETIC ENERGY INTO ELECTRICAL ENERGY - A helical auger turbine and hydrokinetic device for use with electrical generators for producing electricity. A helical turbine blade may be mounted on a central shaft, and a flange extending perpendicularly to an edge of the turbine blade. The helical auger may be a multi-section auger having radial sections covering a radial arc of between 45 degrees and 180 degrees, and that are rotational molded with identical center sections. The auger may have tapered end sections. The radial and end sections may be interlockingly mounted onto the central shaft to enable the complete transfer of torque captured by the helical auger by a moving fluid media, such as a tidal water flow, to the central shaft. The adjacent surfaces of the radial and end sections may be flush with one another to reduce disruptions of the moving fluid flowing over the completed helical auger and rotating the assembled helical auger. | 04-14-2011 |
| 20110150651 | CENTRIFUGAL FAN - A centrifugal fan includes a housing including an air collecting portion, a first frame and a second frame. The air collecting portion has an air outlet defined in one end thereof. The first and second frames are located at two opposite sides of an opposite end of the air collecting portion. The first and second frames each define a receiving space therein for rotatably receiving an impeller. The first and second frames each further define a vent hole therein. The receiving spaces of the first and second frames communicate with the inner space of the air collecting portion via the vent holes thereof. Airflow generated by the two impellers travels to the inner space of the air collecting portion through the vent holes of the first and second frames, and exits the centrifugal fan through the air outlet of the air collecting portion. | 06-23-2011 |
| 20110194935 | COUNTER ROTATING FACEGEAR GEARBOX - A gearbox assembly includes a first face gear driveable about a face gear axis in a first direction by at least one first pinion gear and a second face gear driveable about the face gear axis in a second direction opposite the first direction by at least one second pinion gear. A thrust bearing is located between the first face gear and the second face gear. The first face gear is configured to drive rotation of a first shaft in the first direction and the second face gear is configured to drive rotation of a second shaft in the second direction. Further disclosed is a power train for a rotary wing aircraft having a gearbox including a first face gear rotatable in a first direction and a second face gear rotatable in a second direction opposite the first direction. | 08-11-2011 |
| 20120070287 | PROPELLER FOR AN AIRCRAFT TURBINE ENGINE COMPRISING A VANE RETAINING RING MOUNTED ABOUT THE HUB - A propeller for an aircraft turbine engine comprising a plurality of vanes as well as a hub having a plurality of accommodating ports receiving the bases of said vanes, each vane base being rotatably mounted in its associated accommodating port. The propeller also has at least one vane retaining ring structure in the radial direction outwardly from the hub, being cladded around the latter. | 03-22-2012 |
| 20120163976 | VERTICAL AXIS TURBINE BLADE WITH ADJUSTABLE FORM - The disclosed subject matter provides blades for vertical axis turbines capable of being operated by airflow and/or fluid. The turbine performance is optimized and adjusted with respect to an installation site adapting the turbine to the site and flow needs by modifying the blade's form. The blades can be configured so as to be capable of adjusting the position angle of its ends, leading to an increase in stability, particularly when the turbine reaches high rotational speeds. This configuration also provides the turbine with the ability to self-start more efficiently. The changeable blade ends can give the turbine the ability to absorb the energy of the fluid flow when it reaches the turbine at almost any angle in a vertical or horizontal plane and therebetween. | 06-28-2012 |
| 20160010458 | FULL RING CURVIC SEAL | 01-14-2016 |
| 20160053634 | GAS TURBINE ENGINE WITH HIGH SPEED LOW PRESSURE TURBINE SECTION AND BEARING SUPPORT FEATURES - A turbine section of a gas turbine engine according to an example of the present disclosure includes, among other things, a fan drive turbine section and a second turbine section. The fan drive turbine section has a first exit area at a first exit point and is configured to rotate at a first speed. The second turbine section has a second exit area at a second exit point and is configured to rotate at a second speed, which is faster than the first speed. | 02-25-2016 |
| 20160130949 | LOW NOISE TURBINE FOR GEARED TURBOFAN ENGINE - A turbine module according to an example of the present disclosure includes, among other things, a fan drive rotor having a plurality of blade rows each including a number of blades. A majority of the blade rows are capable of rotating at a rotational speed, so that when measuring the rotational speed in revolutions per minute: (number of blades×the rotational speed)/60≧about 5500 Hz. | 05-12-2016 |
| 20160252096 | FAN MODULE | 09-01-2016 |
| 416121000 | Shiftable support | 1 |
| 20140308130 | FLUID DYNAMIC MACHINE WITH ONE OR MORE IMPELLERS WITH RESTRAINED CONTROL MOBILE BLADES - A turbomachine, comprising a housing, at least two blade wheels rotatably accommodated by the housing, at least two rotatably arranged blades, which are evenly distributed along a circle of the at least two blade wheels and mounted with an axle parallel to the axis of the corresponding blade wheel. According to the invention, each blade axle is connected to an adjusting element, which can be displaced relative to the shaft of the second blade wheel via a four bar link, which lies in a plane perpendicular to the blade axle and consists mainly of a square arm that is fixed to the axle of the blades, wherein a square arm is articulated to the bottom of the blade wheel, whereas the other end is connected to the end of the first square arm via a connecting axle. | 10-16-2014 |
| 416124000 | Coaxial rotation | 57 |
| 20080226450 | Turbine with Coaxial Sets of Blades - A turbine ( | 09-18-2008 |
| 20090220342 | SHAFTLESS VERTICAL AXIS WIND TURBINE - A shaftless vertical axis wind turbine has a stationary hollow core having inner and outer circular walls with a void between the inner and outer walls. A rotor is rotatably supported about the core and has a plurality of radially extending rotor arms each having a wind engaging rotor blade located at a distal end. | 09-03-2009 |
| 20090232654 | Andrews turbine - The Andrews Turbine is a vertical axis turbine (FIGS. | 09-17-2009 |
| 20110176919 | Wind Energy Conversion Devices - A wind turbine for harvesting energy from both horizontal and vertical wind currents having an open frame structure and a central passage through the structure with at least three wind energy harvesting generally vertically disposed and rotatably mounted blades positioned about the central passage and at least three wind energy harvesting generally horizontal blades projecting radially from the central vertical axis of the device. The open frame structure includes a unique rod and cable central structure offset from the periphery of the frame. In one embodiment, the frame structure is suspended from a rotatable hub at the top of a stationary mast. | 07-21-2011 |
| 20110194936 | HIGH EFFICIENCY TURBINE - Provided is a turbine having a first impingement-type turbine portion and a second impingement-type turbine portion integrated into a rotatable disk, wherein the first impulse-type turbine portion has a plurality chutes and a high contact surface for contacting a working fluid and wherein the second impingement-type turbine portion has a plurality of ducts in an upstream rotor and a plurality of vanes in downstream rotor. | 08-11-2011 |
| 20120039712 | VERTICAL AXIS WIND TURBINE DEVICE - This invention provides a vertical axis wind turbine for utilization of wind power for electric generator and mechanical power source which enables big reduction of noise, by supporting a guide vane which section are wing section of aircraft shape to a rotation axis freely for rotation to reduce noise especially when in a condition of strong wind is blowing, by arranging a fixing mechanism to fix the guide vane, and rotors when they become parallel to each other, by adding mechanism to pull down all the wind turbine devices to bottom of a pole-like support, by arranging silencer mechanism composed of flexible member at trailing edge. | 02-16-2012 |
| 20120057977 | Fan Structure - A fan structure comprises a first impeller and a second impeller, wherein the first impeller is composed of a first annular substrate, a plurality of first ribs and a plurality of first blades. The first ribs and the first blades are formed on the first annular substrate, each of the first ribs comprises an engaging hole, and a first accommodating space is formed between each of the adjacent first blades. The second impeller is composed of a hub, a second annular substrate, a plurality of second ribs, a plurality of second blades and at least one engaging member formed on the second ribs. The second ribs and the second blades are formed on the second annular substrate, and a second accommodating space is formed between each of the adjacent second blades. The first blades and the second blades are arranged in a staggered relationship. | 03-08-2012 |
| 20120189448 | EASY MAINTENANCE HYDRAULIC TURBINE ENGINE - A hydraulic turbine engine comprises, between a seat and a succession of turbine stages associated with at least one generator, a guiding block secured to the lower stage of the turbine engine and nested on the seat, said guiding block containing winders for guiding cables, the ends of which are secured to the seat. | 07-26-2012 |
| 20120321465 | ROTOR STRUCTURE INCLUDING AN INTERNAL HYDRAULIC TENSION DEVICE - A rotor structure is provided. The rotor structure includes a plurality of wheels, a main axial tie rod passing through the plurality of wheels and a first shaft and a second shaft each attached to one extremity of the main tie rod, wherein the main tie rod and the bore of an end wheel in contact with one of the first and second shafts delimit a hydraulic chamber configured to receive a hydraulic fluid, and wherein the main tie rod, the hydraulic chamber and the end wheel form an internal hydraulic tension device configured to preload the main tie rod. | 12-20-2012 |
| 20130287570 | SELF-STARTING SAVONIUS WIND TURBINE - A self-starting Savonius wind turbine includes a frame, a rotor assembly that is rotatable about a central axis of rotation and an energy utilizing device operably connected to the rotor assembly. The rotor assembly has at least two rotors, each rotor having at least two rotor blades. Rotation of the rotor assembly is initiated by wind coming from any direction blowing on any one of the plurality of blades. The rotors are configured in a stacked orientation with the blades fixed at a rotated angular position relative to one another to start rotation of the rotor assembly in variable wind conditions. The rotor assembly is made of a composite laminate and the frame is made of a durable, lightweight material. The frame and the rotor assembly are assembled into a single unit for transportation and utilization. | 10-31-2013 |
| 20130336788 | CROSS FLOW FAN, AIR-SENDING DEVICE, AND AIR-CONDITIONING APPARATUS - A cross flow fan achieves low power input and low noise level by preventing flow separation on an air inlet side and reducing a maximum air velocity in the gap between the blades. At least one of units constituting a cross flow fan is an appearance unit configured such that when the unit is sequentially cut in a direction from one of rings to the other ring along a plane whose normal coincides with a rotation axis, a region S and a region C appear, the radius of a second circle, serving as an inner circumferencial circle (having a radius), in the region S being a first radius of predetermined length, the radius of the second circle, serving as the inner circumferencial circle, in the region C being a second radius shorter than the first radius. | 12-19-2013 |
| 20140133986 | TURBINE ENGINE ROTOR, METHOD OF PRODUCING THE SAME, METHOD OF JOINING NI-BASED SUPERALLOY MEMBER AND STEEL MEMBER, AND JUNCTION STRUCTURE OF NI-BASED SUPERALLOY MEMBER AND STEEL MEMBER - A method of producing a turbine engine rotor includes: joining a first rotor disc ( | 05-15-2014 |
| 20160159459 | AIRCRAFT TURBOPROP ENGINE COMPRISING TWO COAXIAL PROPELLERS - The invention relates to an aircraft turboprop engine comprising two unducted propellers, coaxial about a rotation axis (LL), respectively upstream ( | 06-09-2016 |
| 416126000 | Concentric working members | 3 |
| 20110027084 | NOVEL TURBINE AND BLADES - A variable axis turbine may include multiple nested rotatable rotor assemblies. The turbine may be self-starting in slow fluid conditions while simultaneously self-limiting in fast fluid conditions. The turbine may provide omni-directional energy recovery and be self-balancing. The nested rotatable rotor assemblies may be configured to rotate independently of each other, but along the same rotational axis. Each outer nested rotor blade set may direct fluid onto the inner rotor blade sets in an aerodynamically beneficial manner. Each rotor blade set may be interconnected with a rotating generator hub that encloses a rotating generator element that rotates along with a corresponding rotor blade set for electric power generation. The blades may be “smart blades” that are sufficiently flexible to be self-configuring during rotation and soft enough to partially absorb sound. The blades may have a variable hardness and a two or more dimensional twist. | 02-03-2011 |
| 20140105743 | CONICAL FAN ASSEMBLY FOR USE IN A WIND TURBINE FOR THE GENERATION OF POWER - A conical fan assembly, having a generally conical support member having an exterior surface and a vertical major axis, and a plurality of generally crescent-shaped fan blades extending from the exterior surface of the support member, wherein the plurality of fan blades define a helix configured to urge a fluid to flow in a spiral flow pattern up and around the support member. | 04-17-2014 |
| 20140112783 | HORIZONTAL AXIS MULTIPLE STAGES WIND TURBINE - An HMSWT is disclosed which is constructed of successive cage type turbine assemblies. The multiple turbine assemblies are preferably induced into a reverse rotational movement from one another in a coupling effect. A first turbine assembly is propelled and forced into a rotational movement propelled by the oncoming wind which in turn induces a second, inner turbine assembly to rotate in an opposite and reverse direction. This coupling effect enables the rotational movement of two or more turbines with the same oncoming wind and airflow. The particular design of these multiple blades not only enhance the propelling force of the wind by increasing rotational movement, but simultaneously redirects the same airflow inward increasing the velocity of the airflow and propelling it onto the inner turbine assembly. | 04-24-2014 |
| 416128000 | Oppositely rotating impellers | 41 |
| 20100104438 | DEVICE FOR CONTROLLING THE PITCH OF FAN BLADES OF A TURBOPROP - The invention relates to a device for controlling the pitch of fan blades of a turboprop. The device includes at least at least one set of adjustable pitch fan blades secured to rotate with a rotary ring centered on a longitudinal axis and mechanically connected to a turbine rotor. Each blade of the set is coupled for pitch-adjustment purposes with a synchronization ring centered on the longitudinal axis, the synchronization ring being suitable for pivoting about the longitudinal axis relative to the rotary ring under drive from actuators carried by the rotary ring and each having a respective axis extending in a direction that is substantially tangential to the synchronization ring. | 04-29-2010 |
| 20100111697 | WIND ENERGY GENERATION DEVICE - Wind turbine devices are presented that use counter rotating rotor assemblies in a horizontal axis wind turbine (HAWT) arrangement. This reduces the torque applied to the HAWT thereby reducing the structural requirements of a wind energy generation system. Additionally, the counter rotating rotor assemblies cooperatively rotate an output shaft. In one arrangement, this shaft is a vertical shaft which allows removing power generation equipment from the axis of rotation of a HAWT to a position below the wind turbine and/or located on the ground. | 05-06-2010 |
| 20100124500 | TURBOMACHINE HAVING AN UNDUCTED FAN PROVIDED WITH AIR GUIDE MEANS - A turbomachine having two unducted external fans mounted to contrarotate about a common axis, the fans constituting respectively an upstream fan and a downstream fan, wherein at least some of the blades of the upstream fan carry air guide means on their radially outer end portions, the air guide means being outwardly oriented on going from upstream to downstream and serving to deflect the vortices that are formed in the vicinity of the blade tips of the upstream fan radially to outside the blades of the downstream fan. | 05-20-2010 |
| 20100129219 | Systems and Methods for Generating Energy Using Wind Power - A wind turbine for generating energy includes a first rotor having a first set of blades and a first shaft, and a second rotor having a second set of blades and a second shaft, wherein the first rotor is configured to rotate in a first direction, and the second rotor is configured to rotate in a second direction that is opposite to the first direction. A wind turbine for generating energy includes a first rotor having a first set of blades and a first shaft, and a second rotor having a second set of blades and a second shaft, wherein one of the first set of blades is oriented to receive wind for turning the first rotor, and wherein one of the second set of blades is oriented an at angle to receive wind that is deflected from one of the first set of blades for turning the second rotor. | 05-27-2010 |
| 20100135803 | SYSTEMS AND METHODS FOR GENERATING ENERGY USING WIND POWER - A wind turbine for generating energy includes a first rotor having a first set of blades and a first shaft, and a second rotor having a second set of blades and a second shaft, wherein the first rotor is configured to rotate in a first direction, and the second rotor is configured to rotate in a second direction that is opposite to the first direction. A wind turbine for generating energy includes a first rotor having a first set of blades and a first shaft, and a second rotor having a second set of blades and a second shaft, wherein one of the first set of blades is oriented to receive wind for turning the first rotor, and wherein one of the second set of blades is oriented an at angle to receive wind that is deflected from one of the first set of blades for turning the second rotor. | 06-03-2010 |
| 20100296929 | CONTRA-ROTATING PROPELLER UNIT, METHOD FOR ASSEMBLY THEREOF, METHOD FOR TRANSPORTATION THEREOF, AND METHOD FOR MOUNTING THEEOF ON MOTHER SHIP - The object is to facilitate the installation of a contra-rotating propeller on a mother ship. Disclosed is a contra-rotating propeller unit in which a predetermined part on the rear side of an inner shaft ( | 11-25-2010 |
| 20110217170 | VARIABLE SHAPE ROTOR BLADE - A rotor blade comprising a core blade section; and a trailing edge section, the trailing edge section being attached to the core blade section along a join interface. The trailing edge section comprises a shape memory material which is actuable so as to cause selective deformation of the trailing edge section between a first condition in which a trailing edge of the trailing edge section follows a substantially smooth profile and a second condition in which the trailing edge is perturbed. The direction of the perturbation may be oblique or perpendicular to the direction of flow over the blade in use. The rotor blade may be a fan or propeller for a gas turbine engine. | 09-08-2011 |
| 20120134822 | HUB FOR A PROPELLER HAVING VARIABLE PITCH BLADES - A hub for a propeller having variable pitch blades for a turbine engine, for example for a propfan turbine engine. The propeller hub includes: a polygonal ring having substantially radial cylindrical housings distributed about a central axis of the ring for receiving the blades; a rotor element for the turbine of the turbine engine; a supporting flange attached to the ring so as to connect the ring to the rotor element; and a plurality of backup retaining members linked to the rotor element, and each of which includes at least one bearing surface opposite an outer surface of the ring with a radial spacing. | 05-31-2012 |
| 20120321466 | BI DIRECTIONAL WATER TURBINE - A bidirectional water turbine including: an upstream rotor and a downstream rotor, wherein the upstream rotor and downstream rotor are contra-rotating and each rotor includes a plurality of blade, the blades of the upstream and downstream rotors having substantially the same profile. | 12-20-2012 |
| 20120328439 | Method For Balancing A Propulsive System Having Non-Hull Contra-Rotating Propellers - According to the invention, in order to eliminate or at least to reduce a possible unbalance of the propulsive system ( | 12-27-2012 |
| 20130011259 | MECHANISM FOR VARIABLE ADJUSTMENT OF BLADES FOR A SYSTEM OF CONTRA-ROTATING PROPELLERS, AND A SYSTEM OF CONTRA-ROTATING PROPELLERS COMPRISING AT LEAST ONE SUCH MECHANISM - A mechanism for adjusting pitch of blades of a propeller of a system of contra-rotating propellers for a turbomachine, wherein each blade moves around a radial axis. The mechanism includes a linear actuator, a structure to transform movement imparted by the linear actuator into rotation of each of the blades in a synchronized manner around their radial axis, the structure including a bracket of longitudinal axis formed of a central ring, an outer ring, and multiple radial arms rigidly connected to the central ring and to the outer ring. The central ring can be subject to actuation of the linear actuator, and the central ring and the outer ring are positioned in two separate planes, orthogonal to the longitudinal axis, such that the bracket is shaped as a truncated cone. | 01-10-2013 |
| 20130052016 | PITCH CONTROL OF CONTRA-ROTATING AIRFOIL BLADES - A pitch control mechanism for an open rotor gas turbine engine is provided, the engine having a first rotor assembly and a second rotor assembly, with a plurality of airfoil blades circumferentially mounted on each rotor assembly, and arranged in contra-rotational relationship to each other. The pitch control mechanism includes an actuator assembly configured to be secured to a non-rotating frame of the engine, the actuator assembly having a first actuator and a second actuator, with the actuator assembly being rotationally isolatable from and couplable to the first and second rotor assemblies such that, in use, an actuation signal from the first or second actuator induces a corresponding desired change in pitch of the airfoil blades of the respective first or second rotor assembly independently of the pitch of the airfoil blades of the second or first rotor assembly. | 02-28-2013 |
| 20130136601 | Large Contra-Rotating Wind Turbine - Large Contra-Rotating Wind Turbine used to generate mechanical torque by extracting wind energy efficiently. Large scale innovative rotor designs include swept blades to utilize a tension hoop, which supports the outside end of the blades instead of having cantilevered rotor blades. Actual size and configuration of the rotors or blades, including swept area, number of blades, curvature of blades, airfoil shape, or other bends of the blades are not relevant or specific to this invention, however this innovation does allow the size and capacity of the wind turbine to achieve capacities of 3.0 Mw or greater. This new wind turbine configuration places the electric generator at grade where it is easy to access and maintain, and is not supported by the tower. The capacity of this new wind turbine configuration type can be larger than 3.0 Mw. | 05-30-2013 |
| 20130177421 | ELECTRIC POWER SUPPLY FOR APPARATUSES SUPPORTED BY THE ROTOR OF AN AIRCRAFT ENGINE - An aircraft engine including: a stator; a main shaft; a first rotor; a second rotor; a transmission mechanism; a first electrical apparatus supported by the first rotor and a second electrical apparatus supported by the second rotor; at least one first field winding supported by the stator; a control unit configured to circulate direct electric current in the first field winding; at least one first armature winding supported by the first rotor and connected to the first electrical apparatus and at least one second armature winding supported by the second rotor and connected to the second electrical apparatus. | 07-11-2013 |
| 20140017086 | SYSTEM FOR CHANGING THE PITCH OF THE CONTRA-ROTATING PROPELLERS OF A TURBOSHAFT ENGINE - A system, including: a linear actuator axially arranged in a first propeller and rotatably secured thereto, a first linking mechanism connecting a rod of the linear actuator to a second propeller to change a setting of blades thereof, and including an intermediate bearing between the propellers, which is capable of transmitting translation of the rod of the linear actuator and disconnecting a rotatable link to the first propeller to make it possible to change the setting of the blades of the second propeller rotated in an opposite direction to the first propeller, and a second linking mechanism combined with blades of the first propeller to change a setting thereof. | 01-16-2014 |
| 20140044543 | HYDRAULIC TURBINE AND HYDROELECTRIC POWER PLANT - The present disclosure relates to a turbine for hydraulic power generation comprising two bladed wheels ( | 02-13-2014 |
| 20140064968 | Propeller for an aircraft engine comprising means for reducing noise at middle and high frequencies and improving the acoustic perception - Enriching and balancing the acoustic spectrum radiated by a propeller by introducing a differential pitch angle on certain blades of the propeller. Modifying the acoustic spectrum makes it possible to render the propeller noise more pleasant to the human ear. | 03-06-2014 |
| 20140112784 | BLADE, PARTICULARLY VARIABLE-PITCH BLADE, PROPELLOR COMPRISING SUCH BLADES AND CORRESPONDING TURBOMACHINE - A blade, configured to be mounted on a hub of a turbomachine propeller so that an empty space is defined between a base of the blade and a face of the hub facing the base. The blade includes a retractable blanking mechanism configured to reversibly occupy at least one of following two positions: a deployed position in which the retractable blanking mechanism at least partially closes off the empty space; and an extreme retracted position in which the retractable mechanism is kept out of the empty space. | 04-24-2014 |
| 20140186181 | SHIP PROPULSION DEVICE AND SHIP HAVING THE SAME - Disclosed are a ship propulsion device and a ship having the same. According to one embodiment of the present invention, the ship propulsion device includes a rear propeller fixed on a drive shaft; a front propeller supported on a drive shaft of the front of the rear propeller to be rotated; and a reverse rotary device having a plurality of gears which are provided on a rear side of the ship, and transmits rotation of the drive shaft after reversing the rotation to the front propeller. | 07-03-2014 |
| 20140212287 | FLUIDFOIL - A fluidfoil is disclosed including a leading edge and a leading edge zone behind the leading edge. The leading edge zone extends spanwise for the full length of the fluidfoil. The leading edge zone includes one or more deflected regions which locally reduce the angle of attack of the fluidfoil. | 07-31-2014 |
| 20150030452 | PROPULSION DEVICE FOR SHIP AND SHIP HAVING THE SAME - Disclosed are a propulsion device for a ship and a ship having same. The propulsion device, according to an embodiment of the present invention, comprises: a rear propeller fixed to a driveshaft; a front propeller positioned in front of the rear propeller, and supported rotably on the driveshaft; and a counter rotation device for reversing and transmitting the rotation of the driveshaft to the front propeller; a motor for rotating the driveshaft; and an housing, which extends from to the lower part of the hull, and which is installed so as to envelope the counter rotation device and the motor. | 01-29-2015 |
| 20150125299 | COUNTER-ROTATING ROTOR SYSTEM WITH STATIONARY STANDPIPE - A rotor system includes a first rotor located at a rotor axis that imparts a first axial load and a first moment, and a first shaft connected to the first rotor at the axis. A first bearing connects a gearbox to the first shaft, transferring the first axial load from the first shaft to the gearbox. A second rotor located at the axis imparts a second axial load and a second moment. A second shaft is connected to the second rotor at the axis, the second shaft coaxial with the first rotor. A second bearing connects the gearbox to the second shaft, transferring the second axial load from the second shaft to the gearbox. A nonrotating standpipe is located at the axis radially between the first shaft and the second shaft. An intershaft bearing located at the standpipe reacts the first and second moments using the first and second bearings. | 05-07-2015 |
| 20150314846 | PROPELLER FOR SHIP, AND ASSEMBLING METHOD AND DISASSEMBLING METHOD THEREFOR - Disclosed are a propulsion system for a ship, a method of assembling the same, and a method of disassembling the same. The propulsion system for the ship includes: a rear propeller fixed to a rotary shaft; a front propeller that is rotatably supported on the rotary shaft in front of the rear propeller; a contra-rotating device that is mounted in an installation space at a rear end of a hull so as to reverse the rotation of the rotary shaft and transmit the reversed rotation to the front propeller; a propeller connecting member that connects the contra-rotating device and the front propeller to transmit a rotational force; and a thrust supporting device that is provided between the contra-rotating device and the propeller connection member to support thrust of the front propeller. | 11-05-2015 |
| 20150337794 | Turbine with helical blades - The invention relates to a turbine for generating electricity from a fluid current, comprising: a central bulb ( | 11-26-2015 |
| 20150367920 | Torque Boosting Propeller Device - A propeller device for a marine vehicle with a main shaft; a front propeller is provided on the main shaft, the front propeller having a hub and a plurality of blades extending radially outwardly from the hub; a rear propeller being co-axially to and spaced from the front propeller, the rear propeller having a hub and a plurality of blades extending radially outwardly from the hub. A second shaft being communicated with the hub of the front propeller; and at least one support for supporting the rear propeller on the second shaft, the support prevents the second shaft to rotate in the direction of rotation of the main shaft, and being free to rotate thereof in the counter direction of rotation of the main shaft. | 12-24-2015 |
| 20150375859 | Coaxial lifting system - A reliable reduced weight coaxial lifting system includes a reducing gear with two shafts rotating in opposite directions, upper and lower rotor hubs mounted on the respective shafts and upper and lower swashplates connected to one another, which are movable in the axial direction and are kinematically linked to guides of blades positioned on the upper and lower rotor hubs. Guides of the blades are connected to the upper swashplate by rockers mounted on a slide block located above the upper rotor hub and guides of the blades of the lower rotor hub are connected by tie rods directly to the lower swashplate. The lower swashplate is connected to control systems of a collective and a cyclical pitch and the slide block is connected to a control system of a differential pitch of the upper rotor. | 12-31-2015 |
| 20160121999 | AN AIR PROPELLER BLADE PIVOT IN THE SHAPE OF A SPHERICAL CAP - A pivot for an air propeller blade, the pivot including a rotary support for mounting radially on a propeller hub while being suitable for pivoting about a pivot axis; and a blade support including a housing for receiving a blade root and at least one arm extending laterally relative to the pivot axis and carrying a flyweight forming a counterweight; the arm and its flyweight presenting the general geometrical shape of a spherical cap. | 05-05-2016 |
| 20160122028 | AIRCRAFT TURBOPROPELLER - An aircraft turbopropeller includes two coaxial contra-rotating unducted propellers, upstream and downstream respectively, each propeller including an annular row of blades. The blades of the downstream propeller have a reverse sweep in relation to that of the blades of the upstream propeller. The leading edges of the blades of the downstream propeller extend radially outwards from downstream to upstream, at least over a radially outer portion of the blades. | 05-05-2016 |
| 416129000 | Engine driven | 13 |
| 20110033296 | CONTRA-ROTATING PROPELLER MARINE PROPULSION DEVICE - The thrust load of an outer shaft ( | 02-10-2011 |
| 20110243735 | SYSTEM OF CONTRA-ROTATING PROPELLERS DRIVEN BY A PLANETARY GEAR TRAIN PROVIDING A BALANCED DISTRIBUTION OF TORQUE BETWEEN THE TWO PROPELLERS - A system of contra-rotating propellers for an aircraft turbomachine, including: a free power turbine including a first rotor; first and second propellers; and a mechanical transmission system including a planetary gear train fitted with a sun gear driven by the rotor, at least one planet gear driving the first propeller, and a ring driving the second propeller. The free power turbine also includes a second rotor that is contra-rotating relative to the first rotor, and rotating the ring. | 10-06-2011 |
| 20110305572 | MECHANICAL ARRANGEMENT - A mechanical arrangement for an engine having two propeller stages, including: a first epicyclic gear stage including a sun gear, a planet gear, a planet carrier and an annulus, wherein the sun gear is driven by a shaft of the engine, the planet carrier is stationary and thereby permits static structure to be located there through, and the annulus outputs torque and/or drive; a second epicyclic gear stage including a second sun gear, a second planet gear, a second planet carrier and a second annulus, wherein the second sun gear is driven by the annulus of the first epicyclic gear stage and is annular to accommodate the static structure, the second planet carrier includes the output to one of the propeller stages and the second annulus includes the output to the other of the propeller stages; wherein the static structure provides mounting for static components on one or both sides of each epicyclic gear stage. | 12-15-2011 |
| 20110311361 | SYSTEM OF COMPACT CONTRA-ROTATING PROPELLERS - A system of contra-rotating propellers for an aircraft jet engine, including: a free power turbine; a first and second propeller, contra-rotating, the first propeller being placed in a predetermined direction relative to the second propeller, each including a hub, an outer ferrule, and coupling arms linking the two; and a casing inserted between the free turbine and the propellers, the propellers arranged in the predetermined direction relative to the casing and the free turbine arranged in the opposite direction relative to the casing, the casing including a casing extension in the given direction, rotatably supporting the hub of the propeller. The coupling arms extend in the opposite direction, radially towards the outside. | 12-22-2011 |
| 20120099988 | DRIVE MECHANISM FOR A PAIR OF CONTRA-ROTATING PROPELLERS THROUGH AN EPICYCLIC GEAR TRAIN - A turbine driving a planet gear and an epicyclic gear train and including a planet pinion cage and a ring driving two propellers in rotation, is connected to the planet gear through a flexible sleeve surrounding a turbine support shaft rather than through a support shaft itself to achieve a flexible assembly with a limit stop position in contact with the shaft to limit parasite internal forces applied to the epicyclic gear train without tolerating a loose assembly or breakage of the sleeve due to a condition of the limit stop after a clearance has been eliminated. | 04-26-2012 |
| 20120099989 | PROPELLER HUB - A hub of a propeller with variable-pitch blades for a turbine engine, for example for a propfan engine. The hub of the propeller includes a polygonal ring with substantially radial cylindrical recesses distributed about a central axis of the ring for receiving the blades, a turbine rotor element of the turbine engine, and a securing flange that is attached to the ring so as to connect the ring to the rotor element. The hub further includes a plurality of back-up hooks inserted with clearance in openings, the back-up hooks being connected either to the ring or to the rotor element, and the openings being connected to the other one of the two. | 04-26-2012 |
| 20120177493 | TURBINE ENGINE WITH CONTRA-ROTATING NON-DUCTED PROPELLERS - A turbine engine having two contrarotating unducted propellers, an upstream propeller ( | 07-12-2012 |
| 20130039764 | MODULAR COUNTER ROTATING PROPELLER SYSTEM - A self-contained counter rotating turbo prop system is driven by a gas turbine engine through a reduction gearbox. A gear train housed separate from the reduction gearbox provides the counter-rotation of a first and second pluralities of propeller blades. The entire counter-rotating propeller system is disposed within cowlings and is separate from the gas turbine engine and reduction gearbox. The example counter rotating propeller system includes a collective blade angle actuation system that provides for adjustment of blade angle of both the first and second plurality of propeller blades with a single actuator. | 02-14-2013 |
| 20140248153 | PROPULSION DEVICE FOR SHIP AND SHIP HAVING THE SAME - Disclosed are a propulsion device for a ship and a ship having same. The propulsion device, according to an embodiment of the present invention, comprises: a rear propeller fixed to a first driveshaft; a front propeller positioned in front of the rear propeller and supported rotably on the first driveshaft; a counter rotation device, which penetrates the hull, and which counter-rotates the front propeller and the rear propeller on the basis of the rotation of a second driveshaft, which is installed perpendicular to the first driveshaft; and a housing installed so as to envelope the second driveshaft and the counter rotation device. | 09-04-2014 |
| 20140301844 | BLADE FOR A FAN OF A TURBOMACHINE, NOTABLY OF THE UNDUCTED FAN TYPE, CORRESPONDING FAN AND CORRESPONDING TURBOMACHINE - A blade for a fan of a turbomachine, for example of unducted fan type, a corresponding fan, and a corresponding turbomachine. The blade includes a mechanism arranged, at a single location, to locally, as the fan rotates, disturb a distribution of flow around the blade so as to form two independent main vortices downstream. | 10-09-2014 |
| 20150071780 | PROPULSION APPARATUS FOR SHIP AND SHIP HAVING THE SAME - Provided are a propulsion device for a ship and a ship including the same. The propulsion device for the ship includes: a rear propeller fixed to a rotation shaft; a front propeller that is rotatably supported on the rotation shaft in the front of the rear propeller; at least one bearing interposed in at least one of spaces between a hub of the front propeller and the rotation shaft and between the rotation shaft and a ship body; and an inverse rotation unit that inverts rotation of the rotation shaft, transfers the inverted rotation to the front propeller and includes a gearbox that is accommodated in an installation space formed in a tail of the ship body in a state in which a plurality of gears for implementing inversion of the front propeller are embedded, wherein at least one measurement unit for measuring operating states of the at least one bearing is mounted to the rotation shaft. | 03-12-2015 |
| 20150314864 | Overlapping Synchronized Twin Blades - Synchronized overlapping twin blades for use with a rotary-wing aircraft. The synchronization mechanism includes a housing. The housing comprises a first angled side and a second angled side. A first rotor is attached to the first angled side of the housing and a second rotor is attached to the second angled side of the housing. The first and second rotors are secured to the synchronizing mechanism via teeter bolts that enable the blades of the rotors to be positioned within the rotor disc area. The first and second rotors are disposed at an angle relative to one another such that the paths of the rotors are in overlapping positions. The synchronization mechanism utilizes a gear system to prevent the first rotor and the second rotor from striking while rotating in an overlapping path. | 11-05-2015 |
| 20160194066 | PROPULSION DEVICE FOR SHIP AND SHIP COMPRISING THE SAME | 07-07-2016 |
| 416130000 | Differential or independent adjustment | 1 |
| 20160032756 | LOW NOISE TURBINE FOR GEARED TURBOFAN ENGINE - A gas turbine engine comprises a fan and a turbine having a fan drive rotor. There is also a second turbine rotor. A gear reduction effects a reduction in the speed of the fan relative to an input speed from the fan drive rotor. The fan drive rotor has a number of turbine blades in at least one of a plurality of rows of the fan drive rotor, and the turbine blades operate at least some of the time at a rotational speed. The number of turbine blades in the at least one row and the rotational speed are such that the following formula holds true for the at least one row of the fan drive turbine: (number of blades×speed)/60≧5500 Hz. The rotational speed is in revolutions per minute. A method of designing a gas turbine engine, and a turbine module are also disclosed. | 02-04-2016 |
