Planetary Gearing Or Element Patents (Class 475/331)
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Patent number: 12163585Abstract: A reduction group for a vehicle and a reduction assembly including the reduction group are provided. The reduction group has a ring gear, a central sun gear, a planetary gear holder and at least one planetary gear on the planetary gear holder. The at least one planetary gear has a gear meshed externally with the ring gear and internally with the central sun gear, a planetary gear shaft fixed to the planetary gear holder and a pair of bearings supporting the gear on the planetary gear shaft. The planetary gear shaft and the planetary gear holder are engaged so that the planetary gear shaft is axially adjustable on the planetary gear holder in an operational configuration in which the planetary gear shaft performs an axial tightening action on the pair of bearings exhibiting an axial clearance adapted to allow rotation of the pair of bearings.Type: GrantFiled: November 22, 2023Date of Patent: December 10, 2024Assignee: CIMA S.P.AInventor: Riccardo Gileno
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Patent number: 12152494Abstract: A plain bearing for a mechanical reducer for a turbomachine is integrally formed and includes a cylindrical body. The cylindrical body has an external cylindrical guide surface, a first axial mounting extension, a first circumferential edge extending around the first extension, a second axial mounting extension, and a second circumferential edge extending around the second extension. The plain bearing further includes an attachment cover connected to the first axial extension and extending axially opposite said first edge.Type: GrantFiled: September 8, 2023Date of Patent: November 26, 2024Assignee: SAFRAN TRANSMISSION SYSTEMSInventors: Bálint Pap, Cyrille Casteloot
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Patent number: 12138770Abstract: A drive assembly for portable, hand-held, battery powered tools is provided. The tool may be configured as a crimping tool, a cutting tool or other type of tool. The tool has an in-line handle assembly and a working head assembly. The drive assembly includes a drive assembly housing, a gear assembly, a lead drive shaft and a bearing system. The gear assembly is a multi-stage gear assembly having an input tier and an output tier. The input tier is operatively connected to a motor and the output tier is connected to a lead drive shaft. The lead drive shaft has a proximal end extending into a distal end portion of the drive assembly housing. The bearing system is positioned within the drive assembly housing adjacent the output tier of the gear assembly. The bearing system is interactive with the lead drive shaft enabling the drive assembly to withstand radial and axial loads as the lead drive shaft is rotated during an operation of the tool.Type: GrantFiled: November 25, 2020Date of Patent: November 12, 2024Assignee: Hubbell IncorporatedInventor: Peter Matthew Wason
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Patent number: 12098767Abstract: A planetary carrier, including an input flange, a first web plate connected to the input flange, a second web plate arranged opposite the first web plate, a first support plate connected to a side of the first web plate that faces the second web plate and parallel to the first web plate, and a second support plate connected to a side of the second web plate that faces the first web plate and parallel to the second web plate, the first and second support plates being arranged opposite each other. The side of the first support plate includes a plurality of first support portions. A number of first support portions is the same as that of planetary gear shafts. The side of the second support plate includes second support portions corresponding to the first support portions. Each first support portion and respective second support portion support one planetary gear shaft.Type: GrantFiled: March 7, 2022Date of Patent: September 24, 2024Assignee: ZF WIND POWER (TIANJIN) CO., LTD.Inventor: Fuliang Wang
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Patent number: 12092203Abstract: A planetary gear assembly including an input sun gear; a first plurality of planetary gears driven by the input sun gear; a planet carrier coupled with the first plurality of planetary gears; and an output sun gear wherein rotation of the input sun gear drivingly rotates the planet carrier at a first rotational speed and the output sun gear at a different second rotational speed. An output shaft fixed to the planet carrier and the output sun gear are simultaneously rotated about a common longitudinal axis at the different speeds by rotation of the input sun gear. The output sun gear is accessible through a longitudinal passage in the output shaft. A PTO shaft is drivingly couplable with the output sun gear by inserting a first end of the PTO shaft into longitudinally extending passage or with the planet carrier by inserting the second end of the PTO shaft.Type: GrantFiled: January 3, 2024Date of Patent: September 17, 2024Assignee: Auburn Gear, LLCInventor: James L. Forrest
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Patent number: 12092190Abstract: A displacement planetary carrier system, which consists of an elastic planetary carrier (1), a rigid tapered sleeve (2) and a rigid tapered sleeve axial adjustment mechanism (3); the elastic planetary carrier (1) is a planetary carrier in which an inner surface of a side wall portion is processed into a tapered surface, and staggered notches (103) are processed on the side wall, so that the elastic planetary carrier (1) elastically deforms; the rigid tapered sleeve (2) is sleeved within the elastic planetary carrier (1), part of the outer side wall is processed with a tapered surface that matches with the tapered surface of the inner surface of the side wall of the elastic planetary carrier (1); the rigid tapered sleeve axial adjustment mechanism (3) is axially mounted on an adjusting bolt/nut or elastic element at an end portion of the elastic planetary carrier (1) and/or the rigid tapered sleeve (2).Type: GrantFiled: April 4, 2024Date of Patent: September 17, 2024Assignee: AICI TECHNOLOGY (NINGBO) CO., LTD.Inventor: Zilong Ling
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Patent number: 12085015Abstract: An assembly for retaining a gear train in a turbomachine, the assembly comprising an annular casing (44) in which is engaged an annular part (48) rotatably locked in the casing (44) by annular means of cogging comprising first annular means of coupling formed on the annular part and co-operating with second annular means of coupling formed on the annular casing (44), wherein a film of oil is formed in an annular space bounded between the first means of coupling and the second means of coupling.Type: GrantFiled: July 8, 2020Date of Patent: September 10, 2024Assignee: SAFRAN AIRCRAFT ENGINESInventors: Julien Patrick Becoulet, Olivier Formica
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Patent number: 12078075Abstract: A turbomachine engine includes a fan assembly and a core engine comprising a turbine and an input shaft rotatable with the turbine is provided. A single-stage epicyclic gear assembly receives the input shaft at a first speed and drives an output shaft coupled to the fan assembly at a second speed. A sun gear rotates about a longitudinal centerline of the gear assembly and has a sun gear-mesh region along the longitudinal centerline of the gear assembly where the sun gear is configured to contact a plurality of planet gears. A ring gear-mesh region is provided along the longitudinal centerline of the gear assembly where a ring gear is configured to contact the plurality of planet gears. The sun gear-mesh region is axially offset from the ring gear-mesh region along the longitudinal centerline.Type: GrantFiled: December 30, 2022Date of Patent: September 3, 2024Assignee: GE Avio S.r.l.Inventors: Marco Facchini, Gianluca Andrei, Paolo Altamura
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Patent number: 12072002Abstract: A ring gear for an aircraft mechanical gearbox, the ring gear having an annular shape about an axis and having an internal toothing at its internal periphery, an external annular flange or splines at its external periphery, and an annular web extending between the internal toothing and the external flange or splines. The web can include an annular row of arms which are distributed about the axis, these arms connecting the internal toothing to the external flange or splines and being formed in a single piece with the internal toothing and the external flange or splines.Type: GrantFiled: December 8, 2023Date of Patent: August 27, 2024Assignee: Safran Transmission SystemsInventors: Loïc Francois, Boris Pierre Marcel Morelli, Florent Lejeune
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Patent number: 12055059Abstract: A windage cover for a plurality of fasteners coupling a ring gear assembly to an output shaft. The windage cover includes a clip retention member abutting an integral cover shell of the output shaft, and a foot portion configured to be inserted into a pilot groove between an integral lip and an arm portion of the output shaft. The windage cover also includes a wall portion connected to the foot portion, the wall portion being retained at one end of the wall portion by the clip retention member. The windage cover is configured to cover the plurality of fasteners.Type: GrantFiled: March 18, 2022Date of Patent: August 6, 2024Assignee: GENERAL ELECTRIC COMPANYInventors: Bugra H. Ertas, Norman A. Turnquist, Ravindra Shankar Ganiger, Gontla Nagashiresha
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Patent number: 12044305Abstract: A planetary reduction gear (10) for an aircraft turbine engine, said reduction gear comprising a rotatable sun gear, a rotatable ring gear (9) and satellite gears meshed with the sun gear and the ring gear and carried by a planet carrier intended to be fixed to a stator, the reduction gear further comprising an annular trough for recovering and channelling lubrication oil that is mounted around the ring gear, characterised in that the reduction gear further comprises an annular deflector (22) fixed to the ring gear and configured to route the oil exiting radially towards the outside of the ring gear up to the trough by virtue of centrifugal forces, the trough comprising an annular chamber (18) which is axially remote relative to a median plane (P) substantially passing through the centre of the ring gear, and an annular duct (20) located on a side of said chamber and emerging in said chamber.Type: GrantFiled: May 29, 2020Date of Patent: July 23, 2024Assignee: SAFRAN AIRCRAFT ENGINESInventors: Christophe Paul Jacquemard, Didier Gabriel Bertrand Desombre
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Patent number: 12017353Abstract: An actuator particularly in order to be used in movements of joints of robot systems includes at least one drive element which provides movement and arranged as from the first side of at least one body towards the second side thereof, at least one gearbox which can arrange the movement, obtained from said drive element, at predetermined proportions, and at least one dampening element which can at least partially dampen the movement, which exists at said gearbox output, against the force being subjected to and which can transfer said movement to at least one drive cover.Type: GrantFiled: December 31, 2020Date of Patent: June 25, 2024Assignee: OZYEGIN UNIVERSITESIInventors: Ozkan Bebek, Alihan Kuru, Barkan Ugurlu
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Patent number: 12000390Abstract: An electromechanically drivable brake pressure generator for a hydraulic braking system of a vehicle. The electromechanically drivable brake pressure generator includes an electric motor for generating a input speed, a planetary gear set that is driven by the electric motor on the input side to decrease a gear ratio of the input speed, and a hydraulic module that is connected to the planetary gear set on the output side to generate a brake pressure. The planetary gear set includes stepped planets that are connected to a sun wheel of the planetary gear set on the input side and to an output component of the planetary gear set on the output side.Type: GrantFiled: June 12, 2020Date of Patent: June 4, 2024Assignee: ROBERT BOSCH GMBHInventors: Claus Oehler, Martin Uhlig
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Patent number: 11959550Abstract: An actuation mechanism for use in a vehicle. The actuation mechanism includes one or more motors having an output shaft with a sun gear. At least a portion of the sun gear is drivingly connected to at least a portion of one or more planetary gears. The one or more planetary gears are drivingly connected to at least a portion of a carrier, a fixed non-rotating ring gear and an output gear. The disclosure further relates to a method of operating an actuation mechanism that is drivingly connected to at least a portion of a vehicle parking mechanism. The method includes providing an actuation mechanism, providing a parking mechanism and one or more sensors that are operably configured to collect an amount of data to be analyzed. Based on the data analyzed, one or more failures within the parking mechanism may be determined and an alert may be sent.Type: GrantFiled: February 21, 2023Date of Patent: April 16, 2024Assignee: DANA AUTOMOTIVE SYSTEMS GROUP, LLCInventors: Justin Davis, Aaron Gries, Robert Keller
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Patent number: 11959457Abstract: A series of planetary gearboxes includes a plurality of subseries of planetary gearboxes. Each of the plurality of subseries includes a planetary gear carrier of a planetary stage, at least two rolling bearings, and a planetary gear mounted on the at least two rolling bearings. The at least two rolling bearings in a first one of the first plurality of subseries have a first bearing width and in a second one of the first plurality of subseries having a second bearing width.Type: GrantFiled: July 29, 2020Date of Patent: April 16, 2024Assignee: Flender GmbHInventors: Dominikus Daners, Ralf Gettler, Dirk Holweger
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Patent number: 11933229Abstract: Speed reduction gear for an aircraft turbomachine. The reduction gear has a main axis and planet carrier having a cage and a cage carrier, a sun gear located in the cage and centred on the main axis, an annular row of planet gears arranged around the main axis and the sun gear and meshed with the sun gear, and a ring gear arranged around the axis and the cage and meshed with the planet gears. The cage and the cage carrier are connected to each other by connections whose bending flexibility is optimised.Type: GrantFiled: February 6, 2023Date of Patent: March 19, 2024Assignee: SAFRAN TRANSMISSION SYSTEMSInventors: Patrice Julien Ptaszynski, Antoine Jacques Marie Pennacino, Boris Pierre Marcel Morelli
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Patent number: 11927138Abstract: A gas turbine engine includes a fan section that includes a fan drive shaft. A star gear system for driving the fan section has a carrier mounted to a static structure to prevent the carrier from rotating. A ring gear is attached to a ring gear attachment point on the fan drive shaft. A first fan section support bearing supports a fan drive shaft and is mounted forward of the ring gear attachment point. A second fan section bearing supports the fan drive shaft and is mounted aft of the ring gear attachment point on the fan drive shaft. An outer race of the second fan section bearing is fixed relative to an engine static structure.Type: GrantFiled: June 17, 2021Date of Patent: March 12, 2024Assignee: RTX CorporationInventor: William G. Sheridan
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Patent number: 11913385Abstract: A propulsion system includes a drive shaft that rotates about an axis, a fan, a fan shaft that drives the fan about the axis, a reduction mechanism coupling the drive and fan shafts, a compression section driven by the drive shaft, and an inlet channel that extends between the fan and the compression section. The inlet channel includes inner and outer ferrules delimiting an air inlet flow path, the inner ferrule having a minimum radius. The reduction mechanism includes two reduction stages including two or more planet gears circumferentially distributed around the axis, each planet gear including a first portion meshed with the drive shaft and a second portion meshed with the fan shaft and being mounted fixed with respect to the inner ferrule and having a maximum radius greater than the minimum radius such that the air inlet flow path extends partly between the two or more planet gears.Type: GrantFiled: October 8, 2021Date of Patent: February 27, 2024Assignees: SAFRAN AIRCRAFT ENGINES, SAFRAN TRANSMISSION SYSTEMSInventors: Caroline Marie Frantz, Gilles Alain Marie Charier, Matthieu Bruno François Foglia, Adrien Louis Simon
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Patent number: 11879398Abstract: The present invention relates to a shaft for a propulsion system configured to rotate a reducing mechanism about a rotational axis, the shaft comprising: —a first end configured to engage with an input gear of the reducing mechanism, —a first bellows and a second bellows, the first bellows and the second bellows being rotationally symmetrical about the rotational axis, the first bellows extending between the first end and the second bellows, and —a frustoconical body mechanically connecting the first bellows and the second bellows.Type: GrantFiled: February 11, 2021Date of Patent: January 23, 2024Assignee: SAFRAN AIRCRAFT ENGINESInventors: Didier Gabriel Bertrand Desombre, Paul Feliot
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Patent number: 11858076Abstract: A fastening apparatus includes: a plurality of fastening tools; a first movement mechanism configured to rotate the plurality of fastening tools in a circumferential direction; a second movement mechanism configured to rectilinearly move the plurality of fastening tools in a radial direction; and a third movement mechanism configured to rectilinearly move the plurality of fastening tools in a vertical direction. In particular, the first movement mechanism includes a closed-curve guide unit having a closed-curve shape and configured to define a route along which the plurality of fastening tools rotates in the circumferential direction.Type: GrantFiled: November 21, 2022Date of Patent: January 2, 2024Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATIONInventors: Jun Hyeok Bae, Do Kyoung Ji, Se Hoon Ham, Dong Ho Kwak, Yong Tae Kim
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Patent number: 11808344Abstract: A planet carrier for a mechanical gearbox for a turbomachine includes a one-piece cage that extends about an axis of rotation defining an internal housing configured to receive a sun gear and planet gears of the gearbox. The planet carrier further includes a lubrication system with at least one bore formed in the cage and extending parallel to the axis over more than 30% of a maximum axial dimension (Lmax) of the cage. The lubrication system also includes for the at least one bore, at least two sprinklers which are fitted to the cage and which are each mounted in a recess of the cage.Type: GrantFiled: January 4, 2022Date of Patent: November 7, 2023Assignee: SAFRAN TRANSMISSION SYSTEMSInventors: Guillaume Pierre Mouly, Frederic Nicolas François Laisnez, Adrien Louis Simon
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Patent number: 11802514Abstract: An epicyclic reduction gear for a turbomachine includes a sun gear that is rotatable about a first axis and a ring gear surrounding the sun gear and also rotatable about the first axis. The ring gear is secured to a ring gear carrier that rotates a fan shaft. At least one planet gear is rotatable about a second axis and is meshed with the sun gear and the ring gear. The planet gear is guided in rotation about the second axis relative to a bearing of the planet carrier. A piece of equipment comprising a rotor. The piece of equipment is attached to the bearing of the planet carrier and has a rotor rotated by the ring gear carrier.Type: GrantFiled: July 7, 2020Date of Patent: October 31, 2023Assignee: SAFRAN TRANSMISSION SYSTEMSInventors: Clément Paul René Niepceron, Boris Pierre Marcel Morelli
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Patent number: 11788604Abstract: A planetary gear mechanism includes a sun gear rotatable about an axis, a first shaft that is fixed to the sun gear and is rotatable integrally with the sun gear, a plurality of planetary gears that mesh with the sun gear and are rotatable about a center line thereof parallel to the axis, an internal gear that includes internal teeth facing inside in a radial direction to mesh with the planetary gears and is rotatable about the axis, a second shaft that extends in the axial direction to be connected to the internal gear and rotates about the axis together with the internal gear, and a reinforcing member that is fixed to an outer peripheral surface of the internal gear and is formed in an annular shape of a material having a higher specific strength than that of a material forming the internal gear.Type: GrantFiled: September 28, 2022Date of Patent: October 17, 2023Assignee: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATIONInventors: Hideki Nagao, Hiroyuki Miyata
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Patent number: 11781488Abstract: Gearboxes for aircraft gas turbine engines, in particular arrangements for journal bearings such gearboxes, and related methods of operating such gearboxes and gas turbine engines, including a gearbox for an aircraft gas turbine engine, the gearbox including: a sun gear; a plurality of planet gears surrounding and engaged with the sun gear; and a ring gear surrounding and engaged with the plurality of planet gears, each of the plurality of planet gears being rotatably mounted around a pin of a planet gear carrier with a journal bearing having an internal sliding surface on the planet gear and an external sliding surface on the pin.Type: GrantFiled: April 6, 2021Date of Patent: October 10, 2023Assignee: ROLLS-ROYCE plcInventor: Mark Spruce
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Patent number: 11746880Abstract: A motor reducer of the at least an embodiment of the present invention includes a reduction gear train that decelerates rotation input from a motor, and a reducer casing that accommodates the reduction gear train. An input cover that seals a motor-side end face of the reducer casing is provided, and the input cover is provided separately from the motor casing.Type: GrantFiled: November 22, 2021Date of Patent: September 5, 2023Assignee: KANZAKI KOKYUKOKI MFG. CO., LTD.Inventors: Mai Terada, Koji Kiyooka
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Patent number: 11738633Abstract: A gear unit includes: a stepped planetary gearset, and first and second gear shifting elements. The stepped planetary gearset has first and second sun gears, a first ring gear and a plurality of stepped planet gears rotatably mounted at a first planet carrier. The first ring gear is connected to an output shaft of the gear unit thus being fixed with respect to rotation relative to it. The first planet carrier is connected to a housing and fixed with respect to rotation relative to it. The first gear shifting element drivingly connects the second sun gear to an electric machine in a closed state, and the second gear shifting element drivingly connects the first sun gear to an electric machine in a closed state. One of the two gear shifting elements is in the closed state for driving the output shaft in rotation.Type: GrantFiled: July 28, 2022Date of Patent: August 29, 2023Assignee: ZF FRIEDRICHSHAFEN AGInventors: Michael Wechs, Fabian Kutter, Thomas Martin, Oliver Schaudt
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Patent number: 11708890Abstract: A one-piece planetary carrier includes first and second side walls connected to one another by a plurality of webs. At least one of the webs has a curved outer surface which is directed substantially outward in a radial direction and belongs to a lateral surface of the web. The web includes a transition to the first side wall and a transition to the second side wall. The curved outer surface is convexly curved about a first axis of curvature at the transition to the first side wall and the transition to the second side wall. The curved outer surface has at least one anticlastic region which lies in an axial central section and an axial edge section of the web, with a combination of the axial central section with the axial edge section substantially defining an axial dimension of the planetary carrier.Type: GrantFiled: December 22, 2020Date of Patent: July 25, 2023Assignee: FLENDER GMBHInventors: Volker Lensing, Timo Funke, Carolin Telaar
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Patent number: 11698129Abstract: An apparatus and a method of retaining a bearing assembly having a bore to a shaft received within the bore, the method comprising physically limiting the axial movement of the bearing assembly on the shaft by a retainer mounted to an end of the shaft and having a portion extending radially beyond the shaft and into an axial path of the bearing assembly.Type: GrantFiled: October 26, 2020Date of Patent: July 11, 2023Assignee: GENERAL ELECTRIC COMPANYInventors: William Howard Hasting, Donald Albert Bradley, Randy Thomas Antelo
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Patent number: 11686209Abstract: An epicyclic gear assembly includes a carrier that includes a first plate axially spaced from a second plate. At least one epicyclic gear set is located between the first plate and the second plate. The first plate is configured to rotate with an output of the epicyclic gear assembly. A first bearing race is attached to the first plate for supporting a first bearing. A second bearing race is attached to the second plate for supporting a second bearing.Type: GrantFiled: March 26, 2021Date of Patent: June 27, 2023Assignee: Raytheon Technologies CorporationInventor: William G. Sheridan
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Patent number: 11668372Abstract: An apparatus and method for reducing planet gear misalignment of planet gears mounted on a planet-carrier in an epicyclic gearing. The apparatus and method of the present disclosure specifically provide for a stiffness-reducing feature, a pillar, and a side-plate, each with a respective stiffness. In several embodiments, the feature stiffness is less than the pillar stiffness which is at least 10% less than the side-plate stiffness. The stiffness-reducing feature and the pillar may make up a pylon which has an axis. The pylon axis may form an angle with the side plate which is less than 90° and greater than 20°.Type: GrantFiled: September 14, 2020Date of Patent: June 6, 2023Assignee: GE AVIO S.R.L.Inventors: Juraj Hrubec, Michele Gravina, Leonardo Coviello
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Patent number: 11635063Abstract: A bearing assembly of a rotor of a wind turbine, for mounting a shaft of the rotor in a fixed housing, wherein the shaft of the rotor is coupled to rotor blades of the rotor via a hub, includes: a plurality of first housing-side axial slide bearing segments engaging on the housing; a plurality of second housing-side axial slide bearing segments; a plurality of first housing-side radial slide bearing segments; and a plurality of second housing-side radial slide bearing segments. An axial distance between the first and second axial sliding surfaces of the rotor defines a bearing length l. The radial sliding surfaces of the rotor on which the first and second radial slide bearing segments are supported, define a bearing diameter d of the bearing assembly, and V?1 applies to a ratio V=l/d between the bearing length l and the bearing diameter d.Type: GrantFiled: August 1, 2019Date of Patent: April 25, 2023Assignee: RENK GMBHInventors: Thorsten Rohrmann, Lutz Winter, Janina Brencher, Peter Decker
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Patent number: 11605524Abstract: A system for storing and shipping samples for cryo-electron microscopy. The system comprising a cassette puck and support platform that accepts commercial cryo-EM sample cassettes and is compatible to a substantial extent with tools used in cryocrystallography. The system can also work with existing Cryo-EM storage and transport puck and cane systems. The cassette puck comprising a receptacle for holding one or more cassettes and a plurality of holes and grooves. The holes and grooves being configured for use with other tools such as tongs, support platforms, and canes.Type: GrantFiled: September 28, 2020Date of Patent: March 14, 2023Assignee: MiTeGen, LLCInventors: David Closs, Jessica Benitez, Benjamin Apker, Mazdak Radjainia
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Patent number: 11591971Abstract: A gearbox assembly for a gas turbine engine includes a planetary gear set comprising a sun gear, a planet gear, and a ring gear, the sun gear configured for connection to a first drive shaft of the gas turbine engine and the ring gear configured for connection to a second drive shaft of the gas turbine engine, and an electric machine assembly comprising an input and an electric machine. The electric machine comprising a rotor coupled to the input and a stator fixedly positioned within the gearbox assembly, the input of the electric machine assembly coupled to one of the sun gear, the ring gear, or the planet gear of the planetary gear set.Type: GrantFiled: February 11, 2021Date of Patent: February 28, 2023Assignee: GE AVIO S.R.L.Inventors: Marco Garabello, Alessio Gargioli, Fabrizio Bussi, Giuseppe Argentieri, Salvatore Garofalo
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Patent number: 11583953Abstract: A method of forming a planetary carrier assembly is disclosed herein. In one aspect, the method includes providing a first carrier plate and a second carrier plate. The first carrier plate has a first body portion, and the second carrier plate has a second body portion including a plurality of legs. The method includes forming at least one staking element on an axial end of at least one of the plurality of legs. The method includes fixing the first carrier plate and the second carrier plate to each other via application of an axial load such that the at least one staking element on the at least one of the plurality of legs digs into the first carrier plate.Type: GrantFiled: August 5, 2021Date of Patent: February 21, 2023Assignee: Schaeffler Technologies AG & Co. KGInventors: Drew Hilty, Justin Persinger
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Patent number: 11560852Abstract: A gas turbine engine includes a fan section. A speed change mechanism drives the fan section. The speed change mechanism is an epicyclic gear train. A torque frame includes a ring and a plurality of fingers that extend from the ring with the plurality of fingers surrounding the speed change mechanism. A bearing support is attached to the plurality of fingers. A first fan section support bearing is mounted on a first axial side of the speed change mechanism and a second fan section bearing is mounted on a second axial side of the speed change mechanism. The second fan section bearing is a fan thrust bearing.Type: GrantFiled: September 24, 2021Date of Patent: January 24, 2023Assignee: RAYTHEON TECHNOLOGIES CORPORATIONInventors: Gary D. Roberge, Michael E. McCune, William G. Sheridan
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Patent number: 11549580Abstract: A gear unit is described as having a first and a second housing part, an intermediate shaft of the gear unit being mounted via two bearings in a bushing accommodating the bearings, the bushing centering the first housing part against the second housing part.Type: GrantFiled: November 20, 2020Date of Patent: January 10, 2023Assignee: SEW-EURODRIVE GMBH & CO. KGInventors: Miki Tegeltija, Oliver Bühn
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Patent number: 11512647Abstract: A planet-carrier cage is provided for a turbomachine speed reducer having a planetary gear set. The cage contains a central sun gear and an annular row of planet gears arranged around the sun gear axis and engaging both the sun gear and an internal gear that surrounds the cage. A periphery of the cage has axial receiving elements configured to receive axial fingers secured to a cage carrier of the speed reducer. Each receiving element is penetrated by a radial spindle that guides the rotation of a connection means, such as a swivel joint or a bearing, which is supported by the fingers. The spindles include means for projecting lubricating oil into regions in which the planet gears mesh with the internal gear.Type: GrantFiled: July 22, 2019Date of Patent: November 29, 2022Assignee: SAFRAN TRANSMISSION SYSTEMSInventor: Jean-Charles Michel Pierre Di Giovanni
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Patent number: 11512782Abstract: An actuator 1 includes a housing 2, an output shaft 3 protruding from the inside of the housing 2 to the outside, a motor 4 provided in the housing 2, and a reduction mechanism 5 that connects the motor 4 with the output shaft 3. The reduction mechanism 5 includes a worm gear, in which a worm 51 provided at a front end of a drive shaft 42 protruding from a main body 43 of the motor 4 and a worm wheel 52 rotating integrally with the output shaft 3 are engaged. A spindle 41 for increasing an inertia is provided between the worm 51 of the drive shaft 42 and the motor body 43.Type: GrantFiled: June 30, 2020Date of Patent: November 29, 2022Assignees: Jeco Co., Ltd., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hikoshi Izumi, Yoshiyuki Ariki, Taiki Miyokawa, Yuta Muneyoshi, Tomoki Mabuchi
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Patent number: 11441641Abstract: A balanced speed reducer of a dual-sun gear variable-line-speed planetary row includes a dual-sun gear variable-line-speed planetary row, an input end, an output end, a locking end, and auxiliary devices such as bearings. The dual-sun gear planetary row includes a left sun gear, a right sun gear, and a planet carrier. A left planetary gear and a right planetary gear that are connected on each planetary gear shaft have the same rotation speed. The left planetary gear meshes with the left sun gear, and the right planetary gear meshes with the right sun gear. The number of gear sets is not less than two. A teeth number combination and a number of gear sets are set according to a range specifying parameter and following a principle of matching the teeth number combination with the number of gear sets.Type: GrantFiled: December 27, 2019Date of Patent: September 13, 2022Inventor: Can Luo
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Patent number: 11441645Abstract: Methods and systems for a vehicle transmission are provided. In one example, a vehicle transmission system includes a first planetary gear set rotationally coupled to a second planetary gear set and a first electrical machine rotationally coupled to a gear in the first planetary gear set. The vehicle transmission system further includes a second electrical machine rotationally coupled to a gear in the second planetary gear set and a first clutch configured to selectively disconnect the first and second planetary gear sets from a drive axle.Type: GrantFiled: May 22, 2020Date of Patent: September 13, 2022Assignee: Dana Belgium N.V.Inventors: Joachim Van Dingenen, Jessica Versini, Dries Verstraete, Bert Hannon
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Patent number: 11421552Abstract: Gearboxes for aircraft gas turbine engines, in particular to arrangements for journal bearings such gearboxes, and to related methods of operating such gearboxes and gas turbine engines. Example embodiments include a gearbox for an aircraft gas turbine engine, the gearbox including: a sun gear; a plurality of planet gears surrounding and engaged with the sun gear; and a ring gear surrounding and engaged with the plurality of planet gears, each of the plurality of planet gears being rotatably mounted around a pin of a planet gear carrier with a journal bearing having an internal sliding surface on the planet gear and an external sliding surface on the pin.Type: GrantFiled: March 18, 2021Date of Patent: August 23, 2022Assignee: ROLLS-ROYCE PLCInventor: Mark Spruce
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Patent number: 11408486Abstract: A carrier includes a first carrier portion and a second carrier portion. The first carrier portion includes a gear housing space that houses a planetary gear, an opening that opens the gear housing space toward the second carrier portion and allows the planetary gear to fit into the gear housing space, and a first support hole that supports a first end portion of the planetary support shaft. The second carrier portion includes a cover portion that covers the opening, a second support hole that supports a second end portion of the planetary support shaft, and a joining portion that detachably joins the second carrier portion to the first carrier portion. The joining portion is joined to the first carrier portion by being tightened in a direction aligned with a direction of an axial core of a sun gear.Type: GrantFiled: June 7, 2021Date of Patent: August 9, 2022Assignee: KUBOTA CORPORATIONInventors: Tomonari Tsuchida, Ryoma Iwase, Tomoyuki Tanaka, Takahiro Matsuo
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Patent number: 11391217Abstract: A planet gear housing assembly is disclosed in an epicyclical gear system of a gas turbine engine having an engine casing. The planet gear housing assembly comprises an aft planet carrier assembly, a forward planet carrier assembly, and a plurality of planet gears. An aft flange of the aft planet carrier assembly is coupled to the engine casing to define a first torsional stiffness. A forward flange of the forward planet carrier assembly is coupled to the aft flange to define a second torsional stiffness. The second torsional stiffness may be between 60% and 80% of the first torsional stiffness. The planet gear housing assembly may further comprise a stiffening member positioned between the forward planet carrier assembly and the aft planet carrier assembly.Type: GrantFiled: October 3, 2019Date of Patent: July 19, 2022Assignee: ROLLS-ROYCE CORPORATIONInventor: Mark Winely
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Patent number: 11370537Abstract: A drivetrain for an aircraft includes an engine, a driveshaft receiving rotational energy from the engine and a gearbox including a planetary gear system receiving rotational energy from the driveshaft. The planetary gear system includes a sun gear, planet gears, a ring gear and an integral carrier forming flexured carrier posts. Each flexured carrier post supports a respective one of the planet gears and has a fixed proximal end and a cantilevered distal end. The planetary gear system includes flexured roller races, each having a fixed end and a cantilevered end. The fixed end of each flexured roller race is coupled to the cantilevered distal end of a respective flexured carrier post. The planet gears engage with the flexured roller races to rotate about the flexured carrier posts. The cantilevered ends of the flexured roller races experience cantilevered motion to absorb loads from the planet gears.Type: GrantFiled: August 12, 2021Date of Patent: June 28, 2022Assignee: Textron Innovations Inc.Inventors: Colton James Gilliland, Russell Lee Mueller, Tyson T. Henry
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Patent number: 11359700Abstract: A transmission includes at least a first and a second planetary transmission stage. The first planetary transmission stage has a first planet-gear carrier including bolts on which first planets which mesh with a first sun gear are rotatably mounted, and the second planetary transmission stage has a second planet-gear carrier including bolts on which second planets which mesh with a second sun gear are rotatably mounted. The first planet-gear carrier is connected to the second sun gear in a torsionally fixed manner, and a disk is accommodated centrally in the first planet-gear carrier in a recess, e.g., in an axially uninterrupted recess, which is situated axially between the first sun gear and the second sun gear.Type: GrantFiled: August 28, 2019Date of Patent: June 14, 2022Assignee: SEW-EURODRIVE GMBH & CO. KGInventors: Elvia Cristiano De Morais, Antonio Ventriglia Vieira
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Patent number: 11353105Abstract: A planet carrier of a planetary gearbox has a first contact surface and a second contact surface. The first contact surface and/or the second contact surface are divided by a connecting straight line running through the planet carrier axis of rotation and the planet gear axis of rotation into a first contact surface portion and a second contact surface portion. The first contact surface portion encloses a first angle with the connecting straight line, the second contact surface portion encloses a second angle with the connecting straight line, the first angle and the second angle lie in a plane perpendicular to the planet carrier axis of rotation, and the first angle and the second angle are unequal and at least one of the angles is greater than 90°. The invention further relates to a planetary gearbox having a planet carrier of this kind and at least one planet gear.Type: GrantFiled: February 17, 2020Date of Patent: June 7, 2022Assignee: IMS GEAR SE & CO. KGAAInventors: Gabriel Fuchs, Matthias Kieninger
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Patent number: 11346440Abstract: A planetary carrier assembly is provided having a main planet carrier body and a stamped planetary spider formed from a planetary spider blank made of sheet or plate material. The planetary spider has a central portion that extends in a plane perpendicular to an axis of the main planet carrier body, and at least two flanges that extend integrally from the central portion in a direction parallel to the axis toward the main planet carrier body that form spider connection legs. The at least two flanges further include integrally connected distal balance portions that extend from ends of the spider connection legs and are folded back toward respective inner surfaces thereof. The ends of the spider connection legs are fastened to the main planet carrier body and the balance portions are configured for mass removal as part of a dynamic balancing of the planetary carrier assembly.Type: GrantFiled: May 13, 2021Date of Patent: May 31, 2022Assignee: Schaeffler Technologies AG & Co. KGInventors: Brian Lee, Dominik Wiesner, Timothy Simon, Raymond Imars
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Patent number: 11345232Abstract: A wheel hub arrangement for a driving wheel of a vehicle is provided. The wheel hub arrangement is provided with a planetary gear train including: a centrally arranged sun gear wheel fixed to a drive shaft that extends in an axial direction of the wheel hub arrangement; a set of planet gear wheels distributed circumferentially around and meshing with the sun gear wheel; a ring gear wheel member extending circumferentially around the planet gear wheels and being provided with a ring gear wheel meshing with the planet gear wheels; a stationary planet wheel carrier; an annular rolling-element bearing arranged between the ring gear wheel member and the planet wheel carrier, wherein the ring gear wheel member is configured to be fixed to the driving wheel of the vehicle.Type: GrantFiled: September 6, 2018Date of Patent: May 31, 2022Assignee: VOLVO CONSTRUCTION EQUIPMENT ABInventors: Arto Honkanen, Thomas Andersson, Mats Åkerblom
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Patent number: 11334001Abstract: A toner discharging structure and a toner cartridge are provided. The toner discharging structure cooperatively couples with a cartridge body to form a toner cartridge used in an electronic imaging device. The toner discharging structure includes: an accelerating structure, blowing blades, a toner mixing unit, and a toner discharging unit. One end of the accelerating structure is connected to the cartridge body. The blowing blades are connected to another end of the accelerating structure to allow a rotation speed of the blowing blades greater than a rotation speed of the cartridge body. The toner mixing unit is connected to the cartridge body, for receiving wind generated by the blowing blades. The toner discharging unit includes a toner outlet connected to the toner mixing unit.Type: GrantFiled: December 14, 2020Date of Patent: May 17, 2022Assignee: NINESTAR CORPORATIONInventors: Qin Luo, Gerning Ding, Likun Zeng, Yuan Liu
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Patent number: 11313244Abstract: The invention relates to a pivot (58) for a sliding bearing of an epicyclic train, comprising an annular wall (50) defining an axial passage (51) and comprising a first (52c) and a second (54c) annular groove opening axially in opposite directions (L1, L2) and each defined by two coaxial inner (52a, 54a) and outer (52b, 54b) annular branches formed at the axial ends of the annular wall (50). According to the invention, the recesses (60) are made in at least one bottom wall (52d, 54d) of one of the annular grooves (52c, 54c).Type: GrantFiled: September 12, 2018Date of Patent: April 26, 2022Assignee: SAFRAN TRANSMISSION SYSTEMSInventors: Alexis Claude Michel Dombek, Julie Marie Renée Lemoine