Patent application number | Description | Published |
20110142680 | OFFSHORE WIND TURBINE GENERATOR - Provided is an offshore wind turbine generator capable of withstanding unevenly distributed stress with a simple and inexpensive structure and of maintaining reliability in terms of strength. An offshore wind turbine generator includes a nacelle that rotatably supports a rotor head, and a tower portion that supports the nacelle and yaws integrally with the nacelle, and a structure portion that bears the strength of the tower portion has a higher strength against a load in a direction included in a plane having a rotation axis of the rotor head and an extending direction of the tower portion than the strength of the structure portion against a load in a direction included in other planes including the extending direction of the tower portion. | 06-16-2011 |
20110204647 | WIND TURBINE GENERATOR AND ASSEMBLING METHOD THEREOF - A wind turbine generator includes: a main shaft for supporting a wind turbine rotor; a main bearing for rotatably supporting the main shaft; a generator having a generator rotor and a stator; a sleeve connected to the generator rotor and inserted onto the main shaft; and a hydraulic shrink fit provided outside the sleeve and tightening the sleeve to connect to the main shaft. The hydraulic shrink fit is constructed to reduce the inner diameter through a supply of hydraulic fluid to secure the sleeve to the main shaft. | 08-25-2011 |
20110233939 | WIND TURBINE GENERATOR - A wind turbine generator provided with a sliding bearing as a yawing ring bearing that can reduce shifting of an axial center by making radial-direction clearances small. In a wind turbine generator in which a nacelle installed at the top of a tower is turnably supported via a yawing sliding bearing, the yawing sliding bearing is provided with a sliding member 33 disposed between top and bottom support surfaces of a flange formed mainly at a stationary portion and a turning portion; and a rolling element disposed between the stationary portion of the yawing sliding hearing and the turning portion. | 09-29-2011 |
20110241353 | WIND TURBINE GENERATOR - A wind turbine generator according to the present invention includes: a rotor head equipped with wind turbine blades to constitute a wind turbine rotor blade; a nacelle that bears a rotation shaft of the rotor head and houses a generator that generates electricity by a rotation of the rotor head; a tower that supports the nacelle; a rotor head cover that covers the rotor head; an outside-air intake that is provided on a distal end part of the rotor head cover and takes in the outside wind; an outside-air delivery communicating parts that delivers the outside air, which has been taken into the rotor head cover from the outside-air intake, to an inside of the nacelle; and cooling air outlets that are provided in a region of the outer surface of the nacelle that experiences a negative pressure due to the outside wind. | 10-06-2011 |
20110254281 | WIND TURBINE GENERATOR - Size enlargement of a wind turbine generator is facilitated by eliminating various problems that occur with a bearing that joins a tower ( | 10-20-2011 |
20110266806 | Direct-drive wind turbine generator and bearing structure - A direct-drive wind turbine generator is provided with: a main shaft having one end connected to a rotor head of a wind turbine rotor; a generator having a stator, a stator casing for supporting the stator, and a rotor connected to the other end of the main shaft; first and second bearings positioned between the rotor head and the generator to rotatably support the main shaft; and a torque support for supporting the stator casing. The second bearing is positioned closer to the generator than the first bearing. The first bearing is a bearing with an aligning capability, and the second bearing is a bearing with no aligning capability. | 11-03-2011 |
20110269586 | DRIVING FORCE TRANSMISSION APPARATUS AND ADJUSTMENT METHOD THEREOF - A driving force transmission apparatus includes: a motion power transmission part for transmitting a motion power via a driving medium formed by a belt or a chain; and a tensioner for applying a tension to the driving medium. The tensioner includes: a compression spring for biasing the driving medium; a stopper for preventing the compression spring from being compressed to a length less than a predetermined length; and an adjustment part for pushing the compression spring to be the predetermined length in a direction toward the driving medium. According to this configuration, the tension of the driving medium is dominant at installation. When the driving medium becomes fatigue to some extent, the stopper of the tensioner becomes off and the compression spring absorbs the vibration of the driving medium. As a result, the exchange timing of the tensioner can be extended by a simple configuration. | 11-03-2011 |
20110272949 | WIND TURBINE GENERATOR - Provided is a wind turbine generator in which the intake air temperature of an air-cooled heat exchanger disposed in a nacelle is decreased to allow efficient heat exchange. A wind turbine generator that generates electric power in such a manner that a rotor head that rotates when receiving wind power drives a generator installed inside a nacelle, the nacelle being installed at the upper end of a tower that is vertically erected on a foundation, and the wind turbine generator including a closed-circuit lubricating-oil circulation system in which lubricating oil circulates through devices installed inside the nacelle, wherein an air-cooled heat exchanger installed in the lubricating-oil circulation system to cool the lubricating oil by heat exchange with air is provided in a region separate from nacelle air. | 11-10-2011 |
20110278996 | WIND TURBINE GENERATOR - A wind turbine generator is provided with a generator which is provided with a stator and a stator casing accommodating a generator rotor and the stator; a main shaft having one end coupled to a wind turbine rotor and the other end coupled to the generator rotor; a first bearing which rotatably supports the main shaft; a second bearing which is provided on the main shaft to support the stator casing such that the main shaft and the stator casing are rotatable relative to each other; a base to which the first bearing is attached; and a torque support including a coupling member which couples the base portion and a front plate of the stator casing. The load center of force acting between the coupling member and the front plate in a case that torque acts on the stator casing in the circumferential direction of the main shaft is positioned in a range between the front and back surfaces of the front plate. | 11-17-2011 |
20110280730 | SEMI-FLEXIBLE SUPPORTING STRUCTURE FOR WIND TURBINE - A frame for supporting equipment arranged in a hub of a wind turbine is fixed to the hub at one end and flexibly connected to the hub at another end. The variation of the relative position between the hub and the frame caused by the deformation of the hub associated with a rotation of the wind turbine or the like is absorbed by the flexible connection. A wind turbine whose frame in the hub has high durability against the rotation can be provided. | 11-17-2011 |
20110293425 | WIND TURBINE GENERATOR - There is provided a wind turbine generator that includes an improved grease supply and discharge system of lubricant oil used in a blade rotating ring bearing of a wind turbine blade, and can reliably recover discharged grease. The wind turbine generator includes a pitch control mechanism that can adjust a pitch angle of the wind turbine blade via the blade rotating ring bearing provided between the wind turbine blade and a rotor head, a grease supply and discharge device is provided in the rotor head, and the grease supply and discharge device includes a grease supply device that pumps lubricant oil in a supplied grease tank with a grease supply pump and supplies the lubricant oil to the blade rotating ring bearing, and a grease discharge device that forcibly sucks and recovers the discharged grease from the blade rotating ring bearing. | 12-01-2011 |
20110309620 | WIND TURBINE GENERATOR AND NACELLE TURNING METHOD - A wind turbine generator is provided with: a nacelle mounting a wind turbine rotor; a yaw drive device generating drive force for causing yaw turning of the nacelle; a brake mechanism generating braking force for braking the turning of the nacelle; a control system controlling the yaw drive device and the brake mechanism; and a wind speed measurement device measuring wind speed. When detecting occurrence of a high wind speed state based on the wind speed while the nacelle is turned by the yaw drive device, the control device provides braking force for the nacelle by using the brake mechanism in response to the detection of the occurrence of the high wind speed state. | 12-22-2011 |
20120014775 | METHOD FOR HOISTING AND LOWERING DEVICE IN ROTOR HEAD OF WIND TURBINE GENERATOR - There is provided a method for hoisting and lowering a device in a rotor head of a wind turbine generator, that can easily perform a device hoisting and lowering operation in the rotor head without an external crane. The method for hoisting and lowering a device in a rotor head includes a step of mounting a temporary winch rail to a rail support portion previously provided in the rotor head, a step of installing a temporary winch on the temporary winch rail, a step of opening a maintenance hatch provided in the rotor head, and a step of hoisting and lowering a replacement device to be attached or removed in the rotor head through a hoisting and lowering opening in the maintenance hatch by the temporary winch. | 01-19-2012 |
20120032546 | WIND TURBINE GENERATOR AND MAINTAINANCE METHOD THEREOF - A wind turbine generator includes: a main shaft; a generator having a rotor and a stator; and a sleeve coupled to the rotor and inserted onto the main shaft. The stator includes: stator magnetic poles arrayed circumferentially of the main shaft; and first and second stator plates rotatably coupled to the main shaft to support the stator magnetic poles. The rotor includes: rotor magnetic poles and at least one magnetic pole supporting structure coupled to the main shaft to support the rotor magnetic poles and provided between the first and second stator plates such that the rotor and stator magnetic poles are detachable from the sleeve. Positions at which the rotor and stator magnetic poles are detachable from the sleeve are closer to the main shaft from a closer end of the main shaft to the generator. | 02-09-2012 |
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 |
20120112458 | WIND TURBINE GENERATOR AND YAW ROTATION CONTROL METHOD FOR WIND TURBINE GENERATOR - There is provided a yaw rotation control method for a wind turbine generator that does not require a yaw motor and is advantageous for a reduction in cost and a reduction in size and weight of a nacelle. A control unit performs, according to a deviation between wind direction information (θw) obtained from a wind direction detecting unit and a present state yaw angle (θz) obtained from a yaw rotating position detecting unit, yaw rotation control for outputting pitch angle command values (θ | 05-10-2012 |
20120133147 | TURNING DEVICE FOR WIND TURBINE ROTOR AND WIND TURBINE GENERATOR INCLUDING THE SAME - A turning device includes a brake disc, functioning as a driven-side friction pulley, which is disposed on an output shaft of a gearbox and rotates together with the output shaft; a motor-side friction pulley, which can move between an engagement position, where the motor-side friction pulley frictionally engages with an outer circumferential surface of the brake disc, and a free position, where the motor-side friction pulley is a certain distance away from the outer circumferential surface of the brake disc; a pulley pressing mechanism, which moves the motor-side friction pulley from the free position to the engagement position by manual power of an operator to frictionally engage the motor-side friction pulley with the outer circumferential surface of the brake disc; and pulley driving means (electric motor, etc.) for rotationally driving the motor-side friction pulley. | 05-31-2012 |
20120134801 | BLADE PITCH CONTROLLER, WIND TURBINE GENERATOR, AND METHOD OF CONTROLLING BLADE PITCH - A hydraulic cylinder is coupled to blades of a wind turbine generator and actuated to change a pitch angle of the blade. A variable displacement hydraulic pump supplies hydraulic oil to the hydraulic cylinder, and a discharge pressure of the pump does not follow a load pressure. When the discharge pressure of the hydraulic pump becomes a set pressure, a pressure control valve is opened to change a discharge amount of the hydraulic pump, and to make the discharge pressure of the hydraulic pump to be a pressure smaller than a cut off pressure. Further, a setting control unit sets the set pressure based on the hydraulic pressure that the hydraulic cylinder requires such that the set pressure becomes a minimum pressure required to change the pitch angle to a predetermined angle by the hydraulic cylinder. | 05-31-2012 |
20120134827 | PITCH DRIVING UNIT FOR FOR WIND-TURBINE ROTOR BLADE AND WIND POWER GENERATOR EQUIPPED WITH THE SAME - A pitch driving unit according to the present invention is equipped with hydraulic actuators that change the pitch angles of wind turbine blades; a hydraulic pump that supplies oil to the hydraulic actuators; a high-pressure oil line that guides the oil discharged from the hydraulic pump to the hydraulic actuators; a low-pressure oil line that returns the oil discharged from the hydraulic actuators to the hydraulic pump; and a pressure control unit that stores a surplus amount of the oil and that refills the low-pressure oil line with the oil so as not to generate negative pressure at an oil intake portion of the hydraulic pump, wherein the hydraulic actuators | 05-31-2012 |
20120163990 | COMPOSITE MATERIAL PANEL STRUCTURE AND MANUFACTURING METHOD - The present invention provides a composite material panel structure and a manufacturing method thereof with which an anti-lightning function can be realized without adding a separate anti-lightning structure to the composite material panel structure. In a composite material panel structure formed from a composite material panel containing reinforcing fibers, the composite material panel includes: a fiber-reinforced base material impregnated with a matrix resin; a conductive mesh sheet disposed on one surface side of the fiber-reinforced base material; and a bag film disposed on the one surface side of the fiber-reinforced base material so as to sandwich the conductive mesh sheet. The conductive mesh sheets of a plurality of the composite material panels are electrically connected to each other. | 06-28-2012 |
20120169062 | DIRECT-DRIVE WIND TURBINE GENERATOR - A direct-drive wind turbine generator is provided with: a main shaft having one end connected to a rotor head of a wind turbine rotor; a generator having a stator, a stator casing for supporting the stator, and the rotor connected to the other end of the main shaft; first and second bearings positioned between the rotor head and the generator to rotatably support the main shaft; and a torque support for supporting the stator casing. The second bearing is positioned closer to the generator than the first bearing. The first bearing is a bearing with an aligning capability, and the second bearing is a bearing with no aligning capability. | 07-05-2012 |
20120211982 | CONTROLLER FOR WIND TURBINE GENERATOR, WIND TURBINE GENERATOR, AND METHOD OF CONTROLLING WIND TURBINE GENERATOR - If blades have been struck by wind that has reached a power reduction start wind speed that is lower than a conventional cut-out wind speed at which torque acting on a main shaft reaches the torque limit, a wind turbine generator performs torque reduction control for causing the change in the torque when wind speed is higher than the power reduction start wind speed to be different from change in the torque when wind speed is lower than the power reduction start wind speed so as to prevent the torque from exceeding the torque limit at the conventional cut-out wind speed. For example, if the wind striking the blades reaches the power reduction start wind speed, the wind turbine generator sets the slope of change in torque lower than that before the power reduction start wind speed is reached. Accordingly, the wind turbine generator can reduce the load acting on a device and suppress a reduction in power even if the blades are struck by strong wind. | 08-23-2012 |
20130099494 | WIND TURBINE GENERATOR AND YAW CONTROL METHOD FOR WIND TURBINE GENERATOR - A wind turbine generator, which is a wind turbine generator that turns a nacelle in the yaw direction by using the force that acts on turbine blades, includes a yaw brake device that stops the turning of the nacelle in the yaw direction and a control device that controls the yaw brake device so that the turning speed of the nacelle falls within a predetermined range. Therefore, the wind turbine generator can make the turning speed of the nacelle constant. | 04-25-2013 |
20130142664 | NACELLE ROOF STRUCTURE OF WIND TURBINE GENERATOR - To provide a nacelle roof structure of a wind turbine generator, where the nacelle roof structure is capable of reducing stress concentration on joints of a roofing member divided into multiple parts to accommodate growing size of a nacelle as well as improving transport efficiency of the roofing member. A nacelle roof structure of a wind turbine generator, with a top face of a nacelle being covered with a plate-type roofing member ( | 06-06-2013 |
20130202234 | SLEWING BEARING STRUCTURE - There is provided a slewing bearing structure capable of maintaining favorable bearing performance by adjusting and changing rigidity thereof while minimizing the increase in the weight thereof for preventing distortion of a pressure pattern caused by structural deformation from unfavorably affecting the bearing performance. A slewing bearing of a rolling bearing, in which a rolling element is put between bearing rings and formed on an inner ring and an outer ring, has a slewing bearing structure in which a rigidity strengthening portion, at which rigidity of the inner ring and/or the outer ring is increased more than that at peripheral portions, is formed at a circumferential area where a bearing contact pressure is high. | 08-08-2013 |
20130259677 | STRUCTURE FOR NACELLE COVER CONNECTION PORTION OF WIND TURBINE GENERATOR - A structure for a nacelle cover connection portion of a wind turbine generator includes a lengthy first angled member fixed to an inside surface of a nacelle cover and forming an upper end portion of a side wall panel; and a lengthy second angled member fixed to the inside surface and forming a lower end portion of a roof panel. An upper surface of the first angled member and a lower surface of the second angled member are aligned with and fixed to each other. A covering portion covering the upper end portion from the outside of a nacelle is provided at a predetermined interval from the same and integral with the lower end portion so as to protrude to the outside of the nacelle cover farther than the lower end portion. A packing is interposed between the upper and lower surfaces. | 10-03-2013 |
20150275850 | FLOATING-BODY TYPE WIND TURBINE POWER GENERATING APPARATUS AND METHOD OF TRANSPORTING COMPONENTS OF THE SAME - A floating-body type wind turbine power generating apparatus includes a floating body floating on a water surface; and a wind turbine disposed on the floating body and configured so that at least a part of the wind turbine is submersible. The wind turbine includes: at least one blade; a hub to which the blade is mounted; a tower erected on the floating body; a nacelle disposed on the tower; a first electrical device disposed inside the hub or the nacelle; and a second electrical device connected to the first electrical device via a cable and configured to be movable relative to the tower in a vertical direction so as not be submerged upon submergence of the wind turbine. | 10-01-2015 |
Patent application number | Description | Published |
20080206852 | SAMPLE PROCESSING APPARATUS - The present invention provides a sample processing apparatus and a sample container. In a sample processing apparatus, only after a locking member provided on a sample container engages with a sample container receiving portion, the locking member is released. Thereby, a sample fluid is transferred from the sample container to the sample processing apparatus so that various analysis processes can be performed. | 08-28-2008 |
20100103374 | CONNECTION ADAPTER, OPTICAL TOMOGRAPHIC IMAGING APPARATUS, PROGRAM FOR EXECUTING IMAGING METHOD AND MEMORY DEVICE FOR THE PROGRAM - Provided is a connection adapter that is capable of constituting an optical tomographic imaging apparatus having a small installation space and high use efficiency. A connection adapter is disposed between the fundus camera main body portion and a camera portion to be attached to the fundus camera main body portion for imaging a surface image of a fundus as an object in an optical tomographic imaging apparatus, and connects them in a detachable manner. The connection adapter includes: a first light guide unit for guiding tomographic image measuring beams guided from the fundus camera main body portion for imaging the tomographic image to a tomographic imaging portion; and a second light guide unit for guiding fundus image measuring beams guided from the fundus camera main body portion for imaging the surface image of the fundus to the camera portion. | 04-29-2010 |
20110104794 | APPARATUS FOR PERFORMING BIOCHEMICAL PROCESSING USING CONTAINER HAVING WELLS - A biochemical processing apparatus includes a thermal cycle section, a processing section for performing a processing not requiring heating or cooling, and a cooling section. These sections are arranged in that order and opposed to a container with a plurality of wells. | 05-05-2011 |
20110249236 | SCHEMATIC EYE AND ADJUSTMENT METHOD AND EVALUATION METHOD FOR OPTICAL COHERENCE TOMOGRAPHY APPARATUS - A schematic eye used for the evaluation of the optical system of an optical coherence tomography apparatus which captures a tomogram of the fundus includes the first optical member which irradiated light from the optical system strikes and the second optical member which irradiated light from the first optical member strikes. A plurality of layers having different scattering intensities in the incident direction of irradiated light are formed on the second optical member. | 10-13-2011 |
20110301455 | OPTICAL TOMOGRAPHIC IMAGING APPARATUS - Provided is an optical tomographic imaging apparatus that, at imaging a tomographic image in an OCT system with a high lateral resolution, can more reduce blurring in the image due to movement of an object, including: a scanning device for scanning, on the object, a first irradiation beam having a large spot diameter and a second irradiation beam having a small spot diameter synchronized with each other, an image information acquiring device for acquiring first and second image information obtained with the irradiation beams, respectively, by scanning the first and second irradiation beams, and a position correcting device for identifying a position of the first image information based on reference image information acquired in advance, and, based on correlation of a positional relation between the first and second image information, correcting a position of the second image information by associating the position with the identified first image information's position. | 12-08-2011 |
20110306033 | BIOCHEMICAL PROCESSING APPARATUS - A biochemical processing apparatus is provided having a stage receiving a biochemical reaction cartridge which includes chambers and flow paths communicating therebetween, a moving system for moving liquid via the flow paths, and a detector for detecting the presence of the liquid in a chamber and/or the amount of the liquid. In addition, a determining device determines a result of the movement of the liquid from the information of the liquid in the chamber detected by the detector. | 12-15-2011 |
20120092617 | EYEGROUND IMAGING APPARATUS AND CONTROL METHOD THEREFOR - A tomographic-image pickup unit is controlled so as to capture a tomographic image in response to a signal input from a signal input unit. Then, a display unit is controlled so as to display the captured. tomographic image. An eyeground-image pickup unit is controlled so as to capture a two-dimensional image in response to a signal input from the signal input unit while the tomographic image. is displayed on the display unit. Therewith, the user can more easily perform imaging, and the time load on the subject is reduced. | 04-19-2012 |
20130182219 | OPHTHALMOLOGIC IMAGE PICKUP APPARATUS AND CONTROL METHOD THEREFOR - Provided is an ophthalmologic image pickup apparatus for measuring movement of an eye to be inspected at higher speed than a conventional one. The ophthalmologic image pickup apparatus for acquiring an image of an eye to be inspected based on return light from the eye to be inspected which is irradiated with measuring light via a scanning unit, includes: a position acquiring unit for acquiring a plurality of positions of characteristic portions in the image of the eye to be inspected based on the return light from the eye to be inspected corresponding respectively to a plurality of scanning lines of the scanning unit in the image of the eye to be inspected; and a measuring unit for measuring movement of the eye to be inspected based on the plurality of positions. | 07-18-2013 |
20140063465 | OPHTHALMOLOGIC APPARATUS AND CONTROL METHOD THEREFOR - To avoid, with a simple configuration and easy scanning, blocking of illumination light due to an eyelash or an eyelid of a subject, provided is an ophthalmologic apparatus, including: an optical system for scanning illumination light on an eye to be inspected in an up and down direction; a fixation target indicating unit for indicating a fixation target to the eye to be inspected at a selected position; a deflecting unit for changing an angle of the scanning for the eye to be inspected in a downward direction; and a fixation position shifting unit for shifting an indication position of the fixation target in a downward direction in accordance with the changed angle. | 03-06-2014 |