| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 416155000 | Motor bodily rotatable with impeller hub or shaft | 33 |
| 20080286105 | FAN WITH ADJUSTABLE FAN BLADE PITCH - A fan comprising: a housing unit, wherein the housing unit is positioned perpendicular to a ceiling; a motive unit; a fan blade operably coupled to the motive unit; and the motive unit configured to adjust a position of the fan blade from a plane parallel to the ceiling to a position that is tilted from the plane parallel to the ceiling. | 11-20-2008 |
| 20080292463 | Device for the adjustment of the pitch of a rotor blade of a wind turbine - A device is provided for the adjustment of the pitch of a rotor blade of a wind turbine comprising a pitch actuator acting on an adjusting plane for the adjustment of the pitch and a fixing device to which the pitch actuator is attached, the fixing device comprises a first and a second bearing shaft allowing a pendulum motion of the pitch actuator wherein both the first and the second bearing shaft are arranged respectively under a certain tilt angle relatively to the adjusting plane which tilt angle is respectively substantially different from 0° or 90°. | 11-27-2008 |
| 20090010761 | Rotating Device To Be Used In A Fluid - The invention relates to a rotational device that is to be used in a fluid in order to generate power from the moving stream of a fluid or to convert energy into a motion of a fluid. Said rotational device comprises main rotating means which is fixedly connected to a central rotary shaft of the rotational device, one or several rotational surfaces which are mounted on the main rotating means so as to be rotatable about rotational surface rotary shafts spaced away from the rotary shaft such that the main rotating means are able to perform a rotational motion about the central rotary shaft by means of at least one rotational surface, the rotational surface rotary shafts extending parallel to the rotary shaft of the main body. A device is provided which adjusts an angle of the rotational surface relative to the direction of flow of the fluid in such way that the buoyancy principle is maintained on the rotational surface. | 01-08-2009 |
| 20090016885 | WIND TURBINE ROTOR, A ROTATION CONTROLLING MECHANISM AND A METHOD FOR CONTROLLING AT LEAST ONE BLADE OF A WIND TURBINE ROTOR - The invention relates to a wind turbine rotor comprising at least one blade and at least on pitch mechanism comprising a ring shaped motor for controlling the blade. The wind turbine rotor is characterized in that, the ring shaped motor controls the blade through gearing means of a planetary type. | 01-15-2009 |
| 20090285686 | FAN BLADE RETENTION AND VARIABLE PITCH SYSTEM - A system for providing variable pitch to a rotor blade of an aircraft engine includes a rotatable hub; at least one blade mounted on the rotatable hub; a gear mechanism operably connected to the rotatable hub; a timing ring rotatably and operably connected to the gear mechanism; and a pitch arm operably connecting the timing ring and the at least one blade mounted on the rotatable hub. In the operation of the system, the gear mechanism facilitates the rotation of the timing ring to vary the pitch of the at least one blade mounted on the rotatable hub. | 11-19-2009 |
| 20100014977 | VARIABLE PITCH AFT PROPELLER VANE SYSTEM - A propulsion system includes a rotationally fixed variable pitch vane system located axially aft of a propeller system. | 01-21-2010 |
| 20100021304 | Blade pitch actuation mechanism - A blade pitch actuation mechanism for a plurality of propeller blades supported in a blade hub comprises a plurality of bearing assemblies, a bearing support plate and a yoke. The plurality of bearing assemblies receives a plurality of actuation trunnion pins from the plurality of propeller blades. The bearing support plate is connected to the plurality of bearing assemblies and unifies the plurality of bearing assemblies in a ring-like configuration. The yoke is connected to the bearing support plate and translates within the hub to adjust the pitch of the plurality of propeller blades. | 01-28-2010 |
| 20100135808 | SYSTEMS AND METHODS FOR ASSEMBLING A PITCH ASSEMBLY FOR USE IN A WIND TURBINE - A method of assembling a wind turbine. The method includes coupling a pitch bearing to a hub that includes a wall. The pitch bearing includes a plurality of sets of pitch bearing teeth. At least one blade is coupled to the pitch bearing such that the blade is rotatable about a pitch axis. A plurality of pitch gearbox brackets are coupled to the hub wall. A pitch drive system is selectively coupled to one of the plurality of pitch gearbox brackets, wherein a predetermined set of pitch bearing teeth are in contact with the pitch drive system. | 06-03-2010 |
| 20110182735 | WINDMILL PITCH DRIVING APPARATUS - A windmill pitch driving apparatus is provided, which is capable of achieving improved output torque and reduced size as well as reduced weight. Lubricating oil is enclosed in a casing | 07-28-2011 |
| 20110206516 | DEVICE FOR CONTROLLING TURBINE BLADE PITCH - A device for controlling a turbine blade pitch, comprising a turbine blade spindle ( | 08-25-2011 |
| 20120134829 | Fluid Turbine Featuring Dynamically Phase-Adjustable Cam - A fluid turbine comprising a rotor, having an axis of rotation, comprising at least two rotor blades disposed at a radius from the axis of rotation, each rotor blade having a pitch axis and a variable pitch angle. The fluid turbine comprises a phase-adjustable mechanism operable to control the pitch angle of at least one rotor blade about its pitch axis and to vary the pitch angle of the rotor blade between various pitch angles as the blade moves radially about the axis of rotation of the rotor. | 05-31-2012 |
| 20120308384 | TWIST MECHANISM FOR TWISTING A ROTOR BLADE FOR A ROTORCRAFT, AND A BLADE - A twist mechanism for twisting a rotary-wing blade ( | 12-06-2012 |
| 20120321473 | REDUNDANT PITCH SYSTEM - A pitch system for a wind turbine installation having an electrically driven pitch drive associated with each rotor blade and an electric motor arranged in a rotating part of the wind turbine installation for blade adjustments. A power and control unit is associated with the motor and has line connections for the transmission of power and control data from the power and control unit to the motor and vice versa. The line connections are passed via a first rotating bushing arranged at a connecting point between the rotating part and an axially adjacent stationary region. The pitch system also includes second rotating bushing which operates mechanically and electrically separately from the first rotating bushing and is connectable to the power and control unit and to the motor for maintaining reliable transmission of the power and control data if the first rotating bushing fails. | 12-20-2012 |
| 20130039768 | ROTARY CONNECTION OF A ROTOR BLADE TO THE ROTOR HUB OF A WIND ENERGY PLANT - The invention relates to a rotary connection of a rotor blade ( | 02-14-2013 |
| 20130058789 | ACTUATING BLADES OF AN UNDUCTED FAN - An actuator device for actuating a swivel-mounted member carried by a rotor of a propulsion engine including: at least one electricity source; an electric actuator for swiveling the swivel-mounted member; a power supply circuit connecting the electricity source to the actuator; and an inertial device connected to the power supply circuit, the inertial device configured to convert electrical energy coming from the power supply circuit into mechanical energy, to store the mechanical energy, and to convert the mechanical energy into electrical energy for the power supply circuit. | 03-07-2013 |
| 20130156581 | APPARATUS FOR GENERATING ELECTRIC POWER FROM WIND ENERGY - An apparatus for generating electric power from wind energy includes a blade unit, a wind-collecting unit, and a control unit. The blade unit includes an upright shaft mounted rotatably on a base, and a plurality of blades connected fixedly around the shaft and driven by wind to rotate. A generator is connected to the shaft for converting rotational kinetic energy into electric power. The wind-collecting unit includes upright plates mounted pivotally on the base and disposed around the blades. The control unit detects rotational speed of the shaft and accordingly moves at least a portion of each upright plate between first and second positions, where the amount of wind flowing toward the blades is increased and reduced, respectively. | 06-20-2013 |
| 20140205456 | WIND TURBINE AUXILIARY DRIVE SYSTEM - Wind turbine auxiliary drive system comprising a motor, a drive pinion, a bearing and a lubrication system, the bearing comprising an outer bearing ring, an inner bearing ring and, between these two bearing rings, one or more rows of rolling elements which allow both bearing rings to rotate relative to each other, the inner bearing ring having an inner side comprising a gear which meshes with the drive pinion, wherein a height of the gear in an axial direction is smaller than the height of the inner bearing ring such that a gearless portion is defined, and wherein at least one lubricant inlet and/or at least one lubricant outlet is arranged on said gearless portion. | 07-24-2014 |
| 20140234107 | HORIZONTAL-AXIS WIND TURBINE USING AIRFOIL BLADES WITH UNIFORM WIDTH AND THICKNESS - A horizontal-axis wind turbine using airfoil blades with uniform in width and thickness, comprising a tower installed vertically from ground surface, a nacelle rotatable connected to center of a vertical axis on top of the tower, a rotating body axially bonded to the nacelle, and one or more blades connecting and forming a pitch angle on the outer periphery of the rotating body, and the blade having an airfoil shape and having uniform in width and thickness in a longitudinal direction and generating torque from lift about a tip of the blade is provided. | 08-21-2014 |
| 20140286775 | PITCH DRIVE SYSTEM - Pitch drive system for a wind turbine comprising a motor, a drive pinion operationally connected with the motor and a gear arranged to mesh with the drive pinion, wherein a first plate is provided on one side of the drive pinion, the first plate comprising one or more channels adapted to provide a lubricant to a tooth of the drive pinion that is in meshing engagement with teeth of the gear. The disclosure further relates to a wind turbine rotor. | 09-25-2014 |
| 20140286776 | Blade Pitch System for a Wind Turbine Generator and Method of Operating the Same - A wind turbine blade pitch control system includes a blade pitch drive mechanism coupled to a wind turbine blade and an electric power source coupled to the blade pitch drive mechanism. The system also includes switch devices coupled to portions of the electric power source, and the switch devices are coupled to the blade pitch drive mechanism. The system further includes a controller coupled to the blade pitch drive mechanism and the switch devices. The controller is configured to store a plurality of operational measurements of the blade pitch drive mechanism and the switch devices. The controller is programmed to change an angular rate of change of a pitch angle of the wind turbine blade by opening and closing the switch devices in a predetermined sequence. | 09-25-2014 |
| 20140308131 | WIND TURBINE ROTOR - Wind turbine rotor comprising a hub, a plurality of blades and at least one pitch system for rotating a blade substantially along its longitudinal axis, the pitch system comprising a bearing, a motor and a gear system, said gear system comprising a driving pinion operationally connected with the motor, an annular gear arranged to mesh with the driving pinion, and additional gear teeth, the additional gear teeth being arranged to mesh with other parts of the gear system at least in a predefined blade position for wind speeds at or below nominal wind speed, and arranged such that upon movement from said predefined blade position, the additional gear teeth come into contact with said other parts of the gear system before the driving pinion comes into contact with the annular gear. | 10-16-2014 |
| 20140341740 | WIND TURBINE ROTOR - Wind turbine rotor comprising a hub, a plurality of blades and at least one pitch system for rotating a blade substantially along its longitudinal axis. The pitch system comprises a bearing, a gear and a pitch drive. The pitch drive is arranged on a flange and has a motor and a pinion which meshes with the gear. The flange is provided with a hole and an intermediate support is concentrically arranged with respect to the hole. The intermediate support comprises an off-center opening with respect to a central axis of the hole and the pitch drive is mounted through said off-center opening. The position of the off-center opening is such that the intermediate support can be arranged in a first and a second position in which the drive pinion meshes with a first and second section of the gear respectively. | 11-20-2014 |
| 20150037152 | Mechanically-Adjustable Pitch Propeller - The present invention relates to a mechanically-adjustable pitch marine vessel propeller attached to a shaft driven by an engine of a marine vessel, comprising a substantially cylindrical hollow hub and a plurality of blades extending radially outwardly from the hub and being capable of rotating around an axis being in a radial direction relative to the hub. The propeller according to the present invention comprises an actuator movable linearly along the axis of the hub and at least one motion transmission means communicating with the actuator and each blade for converting the linear motion of the actuator into the rotational motion of each blade in a radial direction relative to the axis of the hub. | 02-05-2015 |
| 20150086370 | SELF-ADJUSTABLE PITCH PROPELLER - A self-adjustable pitch marine vessel propeller attached to a shaft is driven by an engine of a marine vessel, and includes a substantially cylindrical hollow hub and a plurality of blades extending radially outwardly from the hub and being capable of rotating around an axis being in a radial direction relative to the hub. The propeller comprises an actuator movable linearly along the axis of the hub and at least one motion transmission means communicating with the actuator and each blade for converting the linear motion of the actuator into the rotational motion of each blade in a radial direction relative to the axis of the hub and a resilient member communicating with the actuator. | 03-26-2015 |
| 416156000 | Fluid motor | 9 |
| 20080247877 | TURBOPROP HAVING A PROPELLER MADE UP OF VARIABLE-PITCH BLADES - A turboprop having a set of variable-pitch rotary blades constrained to rotate with a rotary support. In order to vary its pitch, each blade of said set is coupled to a specific hydraulic actuator carried by the rotary support. | 10-09-2008 |
| 20090214344 | RIGID HYDRAULIC CONTROL SHAFT AND A CONTROL SYSTEM FOR VARYING THE PITCH OF A PROPELLER - A rigid hydraulic control shaft for conveying a fluid from a hydraulic valve to a hydraulic chamber of a propeller comprises a main segment. The main segment has a hollow rigid outer tube and a solid rigid inner bar. The inner bar has an outer periphery and at least one longitudinal groove disposed along the outer periphery. The outer periphery is configured to move in rotation and translation with an inner periphery of the outer tube. The main segment is configured to move in rotation and in translation with a piston disposed adjacent to the hydraulic chamber. | 08-27-2009 |
| 20100232964 | ELECTRO-HYDRAULIC ACTUATOR FOR CONTROLLING THE PITCH OF A BLADE OF A WIND TURBINE - The present invention provides an improvement for use in a wind turbine ( | 09-16-2010 |
| 20120063901 | WIND TURBINE BLADE PITCH-CONTROL SYSTEM, AND WIND TURBINE ROTOR AND WIND TURBINE GENERATOR PROVIDED WITH THE SAME - A pitch-control system according to the present invention includes a cylinder support portion provided on a rotor hub, a support point thereof being located away from a front end face (unsupported end) of the rotor hub on the opposite side of the rotor hub; a decentered coupling point provided at a decentered location on a root-side end face of the wind turbine blade; and a cylinder that is installed so as to pass through the unsupported end of the rotor hub, a coupling portion that is provided on a portion that protrudes to the outer side from the unsupported end being coupled in a freely rotatable manner to the support point via a spherical joint, and a coupling portion that is on the inner side of the unsupported and being coupled in a freely rotatable manner to the decentered coupling point via a spherical joint. | 03-15-2012 |
| 416157000 | Coaxial with impeller shaft | 4 |
| 20120099991 | Hydraulic Variable Pitch Propeller - Proposed is a redundant hydraulic variable pitch propeller for an air, land or water craft, comprising at least two propeller blades ( | 04-26-2012 |
| 20110274546 | BACK-UP FEATHERER - A back-up featherer is provided for an engine arrangement having a main hydraulic actuator which operates a pitch change mechanism to angularly displace propellers of a propeller assembly of the engine arrangement, the pitch change mechanism and main hydraulic actuator rotating with the propeller assembly. The back-up featherer has one or more back-up hydraulic actuators located on a static structure of the engine arrangement. The back-up featherer further has one or more load application members which are located on the static structure of the engine arrangement and which are movable by the back-up hydraulic actuators. When moved by the back-up hydraulic actuators, the load application members bear against an engagement portion of the pitch change mechanism across a rotating interface formed therebetween to apply a load to the pitch change mechanism which results in angular displacement of the propellers. | 11-10-2011 |
| 20110274547 | BACK-UP FEATHERER - A back-up featherer is provided for an engine arrangement. The engine arrangement has a main hydraulic actuator which operates a pitch change mechanism to angularly displace propellers of a propeller assembly of the engine arrangement, the pitch change mechanism and main hydraulic actuator rotating with the propeller assembly. The back-up featherer has one or more brakes located on a static structure of the engine arrangement. The back-up featherer further has one or more input gears rotatable about respective axes, which axes rotate with the propeller assembly. The input gears are operatively connected to the brakes such that, when the brakes are activated, the input gears rotate about their axes. The back-up featherer further has one or more load application members which rotate with the propeller assembly and which are operatively connected to the input gears such that, when the input gears is rotate about their axes, the load application members bear against respective engagement portions of the pitch change mechanism. This applies a load to the pitch change mechanism which results in angular displacement of the propellers. | 11-10-2011 |
| 20120070291 | PROPELLER AND SYSTEM OF COUNTER-ROTATING PROPELLERS COMPRISING IMPROVED MEANS FOR LIMITING PITCH, AND A TURBINE ENGINE COMPRISING THEM - A propeller for an aircraft turbine engine, comprising means for adjusting the pitch of the blades comprising a hydraulic actuator borne by the rotor and including a cavity and a piston displaceable in said cavity and dividing said cavity into two chambers, as well as means for limiting the stroke of the piston in order to prevent displacement of said blades in a predetermined direction beyond a predetermined limiting pitch angle, and comprising hydraulic connection means with which both chambers may be put into communication with each other as soon as the pitch angle of the blades becomes equal to said predetermined limiting pitch angle during the displacement of said blades in said predetermined direction, these hydraulic connection means being borne by said rotor of the propeller. | 03-22-2012 |
| 416157000 | Plural blade units | 3 |
| 20120099991 | Hydraulic Variable Pitch Propeller - Proposed is a redundant hydraulic variable pitch propeller for an air, land or water craft, comprising at least two propeller blades ( | 04-26-2012 |
| 20110274546 | BACK-UP FEATHERER - A back-up featherer is provided for an engine arrangement having a main hydraulic actuator which operates a pitch change mechanism to angularly displace propellers of a propeller assembly of the engine arrangement, the pitch change mechanism and main hydraulic actuator rotating with the propeller assembly. The back-up featherer has one or more back-up hydraulic actuators located on a static structure of the engine arrangement. The back-up featherer further has one or more load application members which are located on the static structure of the engine arrangement and which are movable by the back-up hydraulic actuators. When moved by the back-up hydraulic actuators, the load application members bear against an engagement portion of the pitch change mechanism across a rotating interface formed therebetween to apply a load to the pitch change mechanism which results in angular displacement of the propellers. | 11-10-2011 |
| 20110274547 | BACK-UP FEATHERER - A back-up featherer is provided for an engine arrangement. The engine arrangement has a main hydraulic actuator which operates a pitch change mechanism to angularly displace propellers of a propeller assembly of the engine arrangement, the pitch change mechanism and main hydraulic actuator rotating with the propeller assembly. The back-up featherer has one or more brakes located on a static structure of the engine arrangement. The back-up featherer further has one or more input gears rotatable about respective axes, which axes rotate with the propeller assembly. The input gears are operatively connected to the brakes such that, when the brakes are activated, the input gears rotate about their axes. The back-up featherer further has one or more load application members which rotate with the propeller assembly and which are operatively connected to the input gears such that, when the input gears is rotate about their axes, the load application members bear against respective engagement portions of the pitch change mechanism. This applies a load to the pitch change mechanism which results in angular displacement of the propellers. | 11-10-2011 |
| 20120070291 | PROPELLER AND SYSTEM OF COUNTER-ROTATING PROPELLERS COMPRISING IMPROVED MEANS FOR LIMITING PITCH, AND A TURBINE ENGINE COMPRISING THEM - A propeller for an aircraft turbine engine, comprising means for adjusting the pitch of the blades comprising a hydraulic actuator borne by the rotor and including a cavity and a piston displaceable in said cavity and dividing said cavity into two chambers, as well as means for limiting the stroke of the piston in order to prevent displacement of said blades in a predetermined direction beyond a predetermined limiting pitch angle, and comprising hydraulic connection means with which both chambers may be put into communication with each other as soon as the pitch angle of the blades becomes equal to said predetermined limiting pitch angle during the displacement of said blades in said predetermined direction, these hydraulic connection means being borne by said rotor of the propeller. | 03-22-2012 |
| 416158000 | Working member mounted or housed | 1 |
| 20130064666 | ACTIVE TWIST HOLLOW BEAM SYSTEM - A system for actively controlling the span-wise rotational twist of a hollow beam along its longitudinal axis, including a hollow beam structure having a leading edge and a trailing edge region, the beam being split along its length, an actuator arranged between split surfaces of the beam, the actuator adapted to move the split surfaces in a longitudinal direction relative to each other, inducing a twist in the beam. The hollow beam is affixed to an external structure at one or both ends, with only the zero warping displacement points of the beam being attached to the external structure, material or device. In one embodiment, the actuator is a plurality of solid blocks with high thermal expansion coefficients arranged between frames of the split surfaces of the beam, with alternating blocks being heated by resistance heaters to cause expansion in the spanwise longitudinal direction. | 03-14-2013 |
