Class / Patent application number | Description | Number of patent applications / Date published |
475346000 | Floating or flexible coupling or support | 47 |
20080287249 | PLANETARY TRANSMISSION - A planetary transmission with at least one planetary gearset including planetary gears supported on a planetary gear carrier. The planetary carrier has inner teeth, which engage outer teeth of a shaft to form a lock tooth array. To secure the planetary carrier axially on the shaft, the planetary carrier is placed with one axial end against a stop on the shaft and the opposite axial end is fixed axially with a circlip fit into a circlip groove in the shaft. At least one axially adjacent component is supported against the planetary carrier such that an axial bearing is arranged radially and axially adjacent to the circlip and includes a roller group guided in a cage and a first check-disk A second check-disk is arranged radially opposite and at a distance from the circlip in such manner that when assembled, the circlip cannot escape from the circlip groove in the shaft. | 11-20-2008 |
20080312028 | CONNECTION BETWEEN TWO TRANSMISSION COMPONENTS HAVING ROUND CROSS-SECTIONS, FOR THE SUPPORT OF AXIAL FORCES - A positively-locking connection between two components of a transmission that have round cross-sections, designed to support axial forces. A first component to be connected has an annular flange with windows stamped out around its circumference. The windows enable simple deformation of the annular flange. The second component to be connected has an annular groove such that after bringing the two components together, the annular flange of the first component, when viewed axially, is positioned over the annular groove of the second component, such that the annular flange of the first component can be pressed radially into the annular groove of the second component so that segments of the annular flange radially engage the annular groove. | 12-18-2008 |
20100009803 | WIND POWER TURBINE AND GEARBOX THEREFOR - The invention relates to a wind power turbine and a gearbox for same. In wind power turbines, the incoming moment is transmitted from a hub to a gearbox via a shaft, and from the gearbox to a generator. According to the invention, the gearbox is at least partially built into the shaft and/or the shaft is at least partially embodied as a rotary gearbox housing. The resulting compact construction not only renders the wind power turbine more compact and therefore significantly more economical and lighter, but in the event of a suitable design and use of a coupling gearbox, the moment generated can be transmitted in a highly secure manner. | 01-14-2010 |
20100105516 | COUPLING SYSTEM FOR A STAR GEAR TRAIN IN A GAS TURBINE ENGINE - A star gear train for use in a gas turbine engine includes a sun gear, a ring gear, a plurality of star gears and a coupling system. The sun gear is rotatable by a shaft. The ring gear is secured to a ring gear shaft. Each of the plurality of star gears is rotatably mounted in a star carrier and meshes with the sun gear and the ring gear. The coupling system comprises a sun gear flexible coupling, a carrier flexible coupling and a deflection limiter. The sun gear flexible coupling connects the sun gear to the shaft. The carrier flexible coupling connects the carrier to a non-rotating mechanical ground. The deflection limiter is connected to the star carrier to limit excessive radial and circumferential displacement of the star gear train. | 04-29-2010 |
20100197445 | Gear assembly with asymmetric flex pin cross-reference to related applications - An epicyclic gear assembly has a plurality of planetary gear sets secured in a carrier. Each planetary gear set has a planet gear supported by a planet shaft, the planet shaft having its opposite ends supported within the carrier, the planet shaft being capable of defecting along at least a part of its length when the gear assembly is subject to torsional and rotational loads. | 08-05-2010 |
20100197446 | PLANET CARRIER OF THE CAGE TYPE - Planet carrier of an epicyclic gear system with planetary shafts which are connected fixedly to the planet carrier, onto which planet wheels are mounted rotatably using planetary bearings, the teeth of the planetary wheels being helical or chevron teeth, the planet carrier being of the cage type, and where at least two separate planetary wheels are mounted on each planetary shaft, each wheel of which being supported by at least one double-row tapered roller bearing, the outermost bearing ring of each double-row tapered roller bearing being integrated into the planetary wheel concerned. | 08-05-2010 |
20100292044 | Arrangement in a Planetary Gearing and a Planetary Gear - The invention relates to an arrangement and a corresponding planetary gear for increasing the rotation speed including a sun wheel ( | 11-18-2010 |
20110009234 | Stabilizing a Planetary Pinion carrier of an Automatic Transmission - An assembly for stabilizing a gear unit of a transmission for an automotive vehicle includes a first component fixed against displacement along an axis, a carrier facing the first component, supported for rotation about the axis, and supporting planet pinion thereon, and springs located between the first component and the carrier, producing axial forces distributed angularly around the axis and applied to the carrier. | 01-13-2011 |
20110039654 | Epicyclic Gear System With Flexpins - A flexpin assembly (B) for an epicyclic gear system (A) includes a flexpin ( | 02-17-2011 |
20110143880 | DRIVETRAIN FOR GENERATOR IN WIND TURBINE - A drivetrain for a generator in a wind turbine is disclosed. In one embodiment, the drivetrain includes an input shaft configured to provide an input rotational speed, and a planetary gearbox in communication with the input shaft. The planetary gearbox includes a stationary carrier and a plurality of rotatable gears. The planetary gearbox is configured to convert the input rotational speed to an output rotational speed. The drivetrain additionally includes an output shaft in communication with the planetary gearbox. The output shaft is configured to rotate at the output rotational speed. The drivetrain further includes a load isolation device disposed between the input shaft and the planetary gearbox. The load isolation device is configured to reduce transmission to the planetary gearbox of bending loads on the input shaft. | 06-16-2011 |
20120028756 | COMPLIANT CARRIER WALL FOR IMPROVED GEARBOX LOAD SHARING - A planetary gear system and a method of fabricating same. The planetary gear system includes at least one planet gear, at least one planet pin receiving the at least one planet gear, and a carrier. The carrier itself includes at least one carrier opening for accommodating the at least planet gear, at least one planet pin opening for receiving the at least one planet pin, and at least one flex portion within a wall of the carrier for providing enhanced compliance to the carrier in response to force directed on the at least one planet gear. | 02-02-2012 |
20120309583 | EPICYCLICAL GEAR TRANSMISSION WITH IMPROVED LOAD CARRYING CAPABILITY - A high ratio epicyclic gear train (A) with improved load carrying capability for transmitting power from a driven input shaft, such as may be driven by a turbine engine or engines, to a output shaft, as may be coupled to a rotor of a rotary wing aircraft. The compound epicyclic gear train incorporates a load sharing mechanism consisting of a drive sun gear ( | 12-06-2012 |
20130072345 | PLANETARY GEAR UNIT - A planetary gear unit inside a case includes coaxial sun and ring gears, a planetary pinion gear that meshes with the sun and ring gears, and a carrier that holds the planetary pinion gear, the ring gear being fixed with respect to the case, and a flange disposed inward of the ring gear. The ring gear is fixed to a case wall, via the flange, the wall extending radially inward, and the flange being prevented from rotating with respect to the wall by a rotation prevention mechanism. The rotation prevention mechanism includes a plurality of case holes on the same circle in the wall, flange holes in the flange at positions corresponding to the case holes, and rotation prevention members fitted into the case and flange holes to prevent rotation of the flange with respect to the wall with the flange relatively movable axially with respect to the wall. | 03-21-2013 |
20130178327 | COUPLING SYSTEM FOR A STAR GEAR TRAIN IN A GAS TURBINE ENGINE - A star gear train for use in a gas turbine engine includes a sun gear, a ring gear, a plurality of star gears and a coupling system. The sun gear is rotatable by a shaft. The ring gear is secured to a ring gear shaft. Each of the plurality of star gears is rotatably mounted in a star carrier and meshes with the sun gear and the ring gear. The coupling system comprises a sun gear flexible coupling, a carrier flexible coupling and a deflection limiter. The sun gear flexible coupling connects the sun gear to the shaft. The carrier flexible coupling connects the carrier to a non-rotating mechanical ground. The deflection limiter is connected to the star carrier to limit excessive radial and circumferential displacement of the star gear train. | 07-11-2013 |
20130184120 | Epicyclic Gear System - In an epicyclic gear system, each planet gear is connected by a respective connecting pin to an asymmetric planet carrier having two plate portions connected to each other, and only one of which is connectable to a reaction member; and at least one end portion of each connecting pin and the plate portion connected to the reaction member are connected by a radially undulated annular wall flexible angularly and radially. | 07-18-2013 |
20130260952 | PLANETARY GEAR ASSEMBLY, DRIVE UNIT INCLUDING THE PLANETARY GEAR ASSEMBLY, AND IMAGE FORMING APPARATUS INCLUDING THE DRIVE UNIT, AND INSTALLATION METHOD FOR PLANETARY GEAR ASSEMBLY - A planetary gear mechanism includes a plurality of planetary gears, an outer gear, a sun gear, a carrier, and a stick mount. The outer gear meshes with the plurality of planetary gears. The sun gear is coaxially disposed on the same axis as the outer gear and transmits force to the planetary gears. The carrier rotatably supports the plurality of planetary gears and is rotatably and floatingly supported. The carrier includes a hole through which a stick member penetrates in a direction of axis of rotation of the carrier. The stick member penetrates through the hole and is mounted on the stick mount. The stick mount is disposed opposite the carrier. The outer gear and the sun gear are held such that one of the outer gear and the sun gear does not rotate. | 10-03-2013 |
20130331223 | FLEXIBLE SUPPORT STRUCTURE FOR A GEARED ARCHITECTURE GAS TURBINE ENGINE - A geared architecture for a gas turbine engine according to an exemplary aspect of the present disclosure includes, among other things, a fan shaft, a frame which supports the fan shaft, the frame defines a frame stiffness and a plurality of gears which drives the fan shaft. A flexible support defines a flexible support stiffness that is less than the frame stiffness. The plurality of gears are supported by at least one of a carrier and the flexible support and an input coupling to the plurality of gears, the input coupling defines an input coupling stiffness with respect to the frame stiffness. | 12-12-2013 |
20130331224 | FLEXIBLE SUPPORT STRUCTURE FOR A GEARED ARCHITECTURE GAS TURBINE ENGINE - A geared architecture for a gas turbine engine according to an exemplary aspect of the present disclosure includes, among other things, a fan shaft and a frame which supports the fan shaft, the frame defines a frame stiffness. A plurality of gears drives the fan shaft. A flexible support at least partially supports the plurality of gears, the flexible support defines a flexible support stiffness that is less than the frame stiffness. An input coupling to the plurality of gears, the input coupling defines an input coupling stiffness with respect to the frame stiffness. | 12-12-2013 |
20140073477 | FIXTURE, MAINTENANCE ASSEMBLY, AND METHOD FOR MAINTAINING WIND TURBINE GEARBOX - Fixtures, maintenance assemblies, and methods for maintaining a wind turbine gearbox are disclosed. The gearbox includes a sun pinion and a bull gear surrounding the sun pinion. The sun pinion and the bull gear each define a central aperture therethrough and have a central axis. The gearbox further includes a casing, at least a portion of the casing coupled to the bull gear. The fixture includes a frame member and a shaft extending from the frame member. The shaft is insertable through the central aperture of the sun pinion. The fixture further includes an attachment mechanism removably attachable to the sun pinion. Upon attachment of the attachment mechanism to the sun pinion, the fixture is configured for moving the sun pinion along the central axis of the sun pinion. | 03-13-2014 |
20150094187 | TRANSMISSION, IN PARTICULAR FOR DRIVE SYSTEMS OF CONSTRUCTION MACHINES AND MINING MACHINES - The present disclosure generally refers to a transmission comprising a transmission housing and at least one transmission stage arranged in the transmission housing. The transmission stage may include, coaxially with respect to an axis, a sun gear, a planet carrier with at least two planet gears rotatably mounted on the planet carrier; and an internal gear as transmission parts. At least one stop means may be provided for limiting the axial movement of two transmission parts which are movable relative to one another. The stop means may comprise a ball pair with a first ball assigned to a first transmission part and a second ball assigned to a second transmission part. The two balls may be arranged so as to be rotatable about their ball centre on the axis. | 04-02-2015 |
20160091053 | EPICYCLIC GEAR TRAIN - The present disclosure relates to an epicyclic gear train comprising a driving pinion ( | 03-31-2016 |
20180023667 | Transmission Arrangement | 01-25-2018 |
475347000 | Resilient member | 25 |
20080234095 | Planetary Gear - When, according to the invention, a one-stage planetary gear is constructed with radially resilient planet wheels and sun shaft ( | 09-25-2008 |
20080269007 | Planetary Gear Set - This invention relates to epicyclic gears having a carrier ( | 10-30-2008 |
20080300098 | Damped planetary transmission - A damped planetary transmission comprising an input member, an inertial member connected to the input member, a planetary gear assembly connected to the input member, the planetary gear assembly comprising a carrier member that is directly and fixedly connected to the input member, a brake member engaged with a ring gear of the planetary gear assembly, the planetary gear assembly connected to an output member, a one-way clutch operationally disposed between the input member and the output member, and a vibration isolator directly connected for torque flow between the input member and the one-way clutch. | 12-04-2008 |
20090111639 | Planetary Gear - A planetary gear train is described which includes a sun gear, three or more planet gears, an annulus as well as a planet gear carrier, whereby the input is provided via the sun gear and the output is provided via the annulus or via the planet gear carrier, whereby each planet gear is mounted on both sides in a roller bearing, and whereby the planet gear carrier includes two axially spaced bearing washers as well as at least three webs that connect the bearing washers. Each roller bearing is configured as a single-row or multi-row cylindrical roller bearing, each planet gear has a flexurally elastic axis projecting axially on both sides beyond the gear body of the planet gear, and the connection between each roller bearing and the appertaining axis is configured to be spherically moveable. | 04-30-2009 |
20090286645 | FLEXIBLE PIN FOR HELICAL GEARS - A flexible pin for a helical gear system. A countering realignment equal and opposite to the misalignment caused by the overturning moment and other gear forces is created without adding components or wearing surfaces. On the pin elements, one or more different or varying cross sections with the principal axes of their sections non-vertically orientated utilize the tangential and radial forces to cause deflections in two planes to perfectly compensate for misalignment caused by helical gear forces, thus keeping the mesh aligned the same as when using spur gears and traditional flexpins. | 11-19-2009 |
20090298640 | INTEGRAL SUN GEAR COUPLING - A coupling system for connecting a sun gear to a shaft within a planetary gear train, includes a sun gear coupling connecting the sun gear to the shaft. The sun gear coupling has at least one undulant flexible section joined to an inflexible spindle for accommodating misalignment between the sun gear and the shaft. The flexible section comprises a cylindrical ring having a diameter greater than the diameter of the spindle, and joined to the spindle by two longitudinally spaced apart diaphragms. The juncture between the diaphragms, the ring, and the spindle is curved in cross section on an outer side to improve flexibility and minimize stress concentrations, and the inner sides of the diaphragms are straight edges which result in a non-symmetric contour of the diaphragm walls. | 12-03-2009 |
20100120575 | TRANSMISSION - A transmission with a housing ( | 05-13-2010 |
20100240490 | BACKLASH-FREE PLANETARY GEAR UNIT WITH SPLIT PLANET GEARS, WHICH ARE PRELOADED BY SPRING BARS ARRANGED PARALLEL TO THE PLANETARY AXIS OF ROTATION - The invention relates to a backlash-free planetary gear unit comprising a sun gear, an internal gear and at least one planet gear which is in mesh with said sun gear and said internal gear and which is arranged on a planet carrier such that it is rotatable about a planetary axis of rotation, wherein the toothed planet gear has a plane of division which is oriented perpendicular to the planetary axis of rotation and by means of which the planet gear is divided into a first planet subgear and a second planet subgear, wherein the first planet subgear is preloaded relative to the second planet subgear by a spring bar arranged in these two planet subgears substantially parallel to the planetary axis of rotation, and wherein a plurality of spring bars is arranged around the planetary axis of rotation. | 09-23-2010 |
20110053730 | Epicyclic Gear System Having Two Arrays Of Pinions Mounted On Flexpins With Compensation For Carrier Distortion - An epicyclic gear system (A) includes sun and ring gears ( | 03-03-2011 |
20110082005 | Epicyclic Gear System With Flexpins And Helical Gearing - An epicyclic gear system (A) includes helical sun and ring gears ( | 04-07-2011 |
20110245031 | BOGIE PLATE FOR WIND TURBINE - Bogie plate ( | 10-06-2011 |
20120040797 | EPICYCLIC GEAR SYSTEM WITH SEMI-INTEGRATED FLEXPIN ASSEMBLIES - An epicyclic gear system (A) includes a sun gear ( | 02-16-2012 |
20120129647 | GEAR SHOCK CONTROL MEMBER FOR A DRIVE TRAIN COMPONENT GEAR SET - A drive train component includes a housing having a plurality inner surfaces that collectively define an interior portion. A gear set is arranged within the interior portion. The gear set includes a first side and a second side. A gear shock control member is positioned between one of the first and second sides of the gear set and an adjacent component. The gear shock control member includes a plurality of pre-loaded biasing members that direct an axial force onto the gear set. | 05-24-2012 |
20120184404 | Damping of Plantary Gears with Flex-Pins for Wind Turbines - A gear assembly includes a flexible pin mounted to and supported by a planet carrier at one end. A tubular sleeve extends coaxially about the flexible pin and provides a deflection space between said tubular sleeve and said flexible pin. Said flexible pin moves, flexes or deflects under operational loads. A damping element is contained at least partially within the deflection space and surrounds at least partially said flexible pin. | 07-19-2012 |
20120289375 | GEAR ASSEMBLY WITH ASYMMETRIC FLEX PIN - An epicyclic gear assembly has a plurality of planetary gear sets secured in a carrier. Each planetary gear set has a planet gear supported by a planet shaft, the planet shaft having its opposite ends supported within the carrier, the planet shaft being capable of defecting along at least a part of its length when the gear assembly is subject to torsional and rotational loads. | 11-15-2012 |
20130072346 | Torsional Vibration Damping Arrangement - A torsional vibration damping arrangement, particularly for a drivetrain with an automatic transmission, includes an input region and an output region, wherein a first torque transmission path and parallel thereto a second torque transmission path and a coupling arrangement for superposing the torques transmitted via the torque transmission paths are provided between the input region and the output region. The torsional vibration damping arrangement further includes at least in the first torque transmission path a phase shifter arrangement for generating a phase shift of rotational irregularities transmitted via the first torque transmission path relative to rotational irregularities transmitted via the second torque transmission path. | 03-21-2013 |
20130150205 | APPARATUS FOR ELIMINATING BACKLASH IN A PLANETARY GEAR SET - An apparatus for eliminating backlash is disclosed, which is installed between a first planet gear and a second planet gear in a planetary gear set to be used for generating a preload elastic force in a direction perpendicular to the direction of an input torque of the planetary gear set so as to eliminate a two-way backlash of the planetary gear set. | 06-13-2013 |
20130260953 | FLYWHEEL OF ENGINE - A flywheel apparatus of an engine may include a primary wheel that receives a rotational force from the engine and has an integral ring gear, a secondary wheel that has a sun gear disposed coaxially with the ring gear, a carrier to which each rotary shaft of a plurality of planetary gears may be connected, the planetary gears being engaged between the integral ring gear and the sun gear, and a damping member elastically engaging between the carrier and the secondary wheel and providing an elastic force to the carrier during relative rotation between the carrier and the secondary wheel. | 10-03-2013 |
20130310213 | PLANETARY GEAR REDUCER - A planetary gear reducer ( | 11-21-2013 |
20130337969 | WIND POWER PLANT, HAVING COUPLING MEANS ARRANGED BETWEEN THE PLANETARY TRANSMISSION AND THE GENERATOR FOR THE PURPOSE OF COMPENSATING AXIAL, RADIAL AND ANGULAR MISALIGNMENT - A wind power plant has a rotor, an integrated medium-speed electric generator, and a planetary transmission. The planetary transmission is arranged to convert a slow rotary motion of the rotor into a rapid rotary motion to operate the generator. The planetary transmission includes a transmission input shaft connected indirectly to the rotor and includes a transmission output shaft connected to the generator indirectly via a generator shaft. A coupling mechanism is arranged between the generator shaft and the planetary transmission to compensate axial, radial and angular misalignment. | 12-19-2013 |
20140045646 | APPARATUS FOR DAMPING FLYWHEEL - An apparatus for damping a flywheel includes a drive plate integrally connected to a crankshaft A flywheel is connected to receive a rotating force from the drive plate through planetary gearing, and is mounted to rotate relative to the crankshaft. A rigidity imparting means is disposed on a path along which a rotating force is transferred between the drive plate and the flywheel. A mass body is provided on the flywheel, and is configured to perform relative rotation in a direction that offsets a torsional vibration of an engine transmitted to the flywheel. | 02-13-2014 |
20140171255 | EPICYCLIC GEAR SYSTEM HAVING TWO ARRAYS OF PINIONS MOUNTED ON FLEXPINS WITH COMPENSATION FOR CARRIER DISTORTION - An epicyclic gear system includes sun and ring gears ( | 06-19-2014 |
20140256504 | MOUNTING SYSTEM FOR A PLANATARY GEAR TRAIN IN A GAS TURBINE ENGINE - A mounting system for a planetary gear train in a gas turbine engine comprises a support strut, a deflection flange and a deflection limiter. The support strut extends between a stationary engine case and a rotating engine shaft that provides input to the planetary gear train in the gas turbine engine. The deflection flange extends from a rotating output component of the planetary gear train. The deflection limiter is connected to the support strut and engages the deflection flange when the gear train becomes radially displaced. | 09-11-2014 |
20160195176 | ADJUSTMENT APPARATUS FOR CHANGING THE COMPRESSION RATIO IN A COMBUSTION ENGINE | 07-07-2016 |
20180023676 | MOUNTING ARRANGEMENT FOR A GEAR BOX | 01-25-2018 |