Reservoir, Filter Or Lubrication Circuit Structure Patents (Class 384/473)
  • Patent number: 10738952
    Abstract: A light emission system includes fixture assembly including a chassis and a driver board. The driver board includes a plurality of drivers. The system further includes a plurality of modular emitting devices each configured to removably couple to the fixture assembly. The modular emitting devices including a heat sink, an emitting implement, and an emitter board. The emitter board is bonded to the heat sink.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: August 11, 2020
    Assignee: Race, LLC
    Inventor: Brant C. McLellan
  • Patent number: 10724583
    Abstract: An overrunning clutch unit may include inner and outer rings that can be rotated relative to each other. Clamping members may transmit a torque between the two rings in one peripheral direction, the clamping members being arranged between the rings. A first bearing device may be configured to support the two rings, wherein the first bearing device is arranged between the rings at a first axial side of the clamping members. A second bearing device may be configured to support the two rings, wherein the second bearing device is arranged at a second, opposing, axial side of the clamping members so that a tilting of the inner ring relative to the outer ring is prevented.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: July 28, 2020
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventor: Alexander Reimchen
  • Patent number: 10557502
    Abstract: An oil supply unit has: a pump that has a pressure chamber portion that stores lubricating oil and a piezoelectric element that is deformable by application of a voltage, the pump ejecting lubricating oil in the pressure chamber portion; a tank that is connected to the pump and that stores lubricating oil to be supplied to the pump for replenishment; a sensor that detects a pressure in an oil region which extends from the pressure chamber portion to the tank and in which lubricating oil is present, or the state of a bearing portion; a pressure adjustment portion that adjusts a pressure of lubricating oil in the oil region which extends from the pressure chamber portion to the tank; and a control portion that controls at least one of the pressure adjustment portion and the piezoelectric element on the basis of a detection result from the sensor.
    Type: Grant
    Filed: October 9, 2018
    Date of Patent: February 11, 2020
    Assignee: JKTEKT CORPORATION
    Inventors: Tsukasa Sakazaki, Yusuke Ueda, Yoshimichi Higashiyama
  • Patent number: 10520017
    Abstract: A tapered roller bearing includes an inner ring including, on its outer circumferential surface, an inner raceway surface and including, on an end portion on a second axial side, a cone back face rib portion protruding radially outward, an outer ring including, on its inner circumferential surface, an outer raceway surface, a plurality of tapered rollers disposed between the inner ring and the outer ring, and an annular cage that retains the plurality of tapered rollers spaced from each other in a circumferential direction. The cage includes a small-diameter annular portion, a large-diameter annular portion located on the second axial side relative to the tapered rollers and the outer ring, and a plurality of cage bar portions. The large-diameter annular portion has an oil pocket having a first aperture that is open radially inward and a second aperture that is open toward the outer raceway surface.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: December 31, 2019
    Assignee: JTEKT CORPORATION
    Inventors: Akiyuki Suzuki, Hiroyuki Ohshima, Youzou Taniguchi
  • Patent number: 10428875
    Abstract: Provided is a cooling structure for a bearing device. The bearing device includes a rolling bearing having a stationary raceway ring and a rotating raceway ring, a stationary spacer adjacent to the stationary raceway ring and a rotating spacer adjacent to the rotating raceway ring. The stationary raceway ring and the stationary spacer are provided in a stationary member, and the rotating raceway ring and the rotating spacer are provided in a rotating member. The cooling structure includes: an annular recessed portion provided on a circumferential surface, of the stationary spacer, that confronts an opposite spacer; and a nozzle hole configured to inject a compressed air from an outlet open to a bottom surface of the recessed portion toward a circumferential surface of the rotating spacer that confronts an opposite spacer. The nozzle hole is inclined forwardly in a rotation direction of the rotating spacer.
    Type: Grant
    Filed: September 13, 2016
    Date of Patent: October 1, 2019
    Assignee: NTN CORPORATION
    Inventors: Masato Yoshino, Yuushi Onda, Yohei Yamamoto
  • Patent number: 10408260
    Abstract: A bearing structure includes: a ball bearing disposed in a bearing hole formed in a housing of a turbocharger, the ball bearing having an outer ring formed with a damper portion on an outer circumferential surface thereof; an opposed member fixed to the housing, the opposed member opposed to the outer ring in an axial direction of a shaft; a protruding portion formed on one of the outer ring and the opposed member, the protruding portion protruding toward another one of the outer ring and the opposed member; and a regulating portion formed on the other one of the outer ring and the opposed member, the regulating portion opposed to the protruding portion in a rotation direction of the shaft.
    Type: Grant
    Filed: January 2, 2018
    Date of Patent: September 10, 2019
    Assignee: IHI Corporation
    Inventor: Yutaka Uneura
  • Patent number: 10280978
    Abstract: In a tapered roller bearing, a large rib is provided at one end of an inner ring in the axial direction, and projects radially outward. A lubricating oil holding member is integrated with an outer ring, and disposed at a position overlapping the large rib in the radial direction. The lubricating oil holding member includes a tubular portion and an annular portion. An inclined surface is disposed on the outer peripheral surface of the large rib at one end in the axial direction. The distance from the rotational axis of the inner ring to the inclined surface becomes larger from one side in the axial direction toward the other side. An end of the inclined surface is positioned, in the axial direction, between the annular portion and one end of the outer ring in the axial direction.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: May 7, 2019
    Assignee: JTEKT CORPORATION
    Inventors: Akiyuki Suzuki, Ryo Shiina
  • Patent number: 10054164
    Abstract: A rolling bearing includes an inner ring, an outer ring, a plurality of balls, and a cage that holds the balls. An annular groove for creep suppression is formed in a fitting surface that is fitted on a housing to which an outer ring is attached. The annular groove has a depth at which a groove bottom portion of the annular groove is precluded from coming into contact with the mating member when a static load rating is imposed on the annular groove in a radial direction.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: August 21, 2018
    Assignee: JTEKT CORPORATION
    Inventors: Youzou Taniguchi, Yasuhiko Ishii, Takashi Iwata
  • Patent number: 10054005
    Abstract: A turbocharger for an internal combustion engine, the turbocharger being supported by hydrostatic bearings in both a radial and an axial direction by a compressed air supplied from a compressor of the turbocharger and boosted in pressure by a separate boost pump to a high enough pressure to support the rotor of the turbocharger. The turbocharger hydrostatic bearings are damped using wire mesh or dispersed friction dampers.
    Type: Grant
    Filed: January 28, 2015
    Date of Patent: August 21, 2018
    Assignee: FLORIDA TURBINE TECHNOLOGIES, INC
    Inventors: Alex Pinera, Timothy J Miller
  • Patent number: 10047796
    Abstract: In a rolling bearing in which one of inner and outer rings is a rotary ring and the other is a stationary ring, a fitting surface of the stationary ring fitted to a mating member is formed in first and second partial peripheral surfaces of a radially outer surface of the stationary ring which faces the mating member. The first partial peripheral surface is formed on one side in the axial direction, and the second partial peripheral surface is formed on the other side in the axial direction with respect to the first partial peripheral surface. An annular groove that restrains creep is formed between the first partial peripheral surface and the second partial peripheral surface. The annular groove has a depth that is large enough not to allow the bottom of the annular groove to contact the mating member when a radial static rated load is applied.
    Type: Grant
    Filed: March 21, 2017
    Date of Patent: August 14, 2018
    Assignee: JTEKT CORPORATION
    Inventor: Tomohiko Jinbo
  • Patent number: 9995343
    Abstract: A rolling bearing includes an inner ring, an outer ring, a plurality of balls, and a cage that holds the balls. The inner ring is a rotating ring, and the outer ring is a fixed ring. An annular groove for creep suppression is formed in a fitting surface of the rolling bearing that is fitted on a mating member to which the outer ring is attached. The annular groove has a groove main body portion and inclined groove portions located on opposite sides of the groove main body portion in an axial direction and formed to be shallower than the groove main body portion such that the depth of each of the inclined groove portions increases toward the groove main body portion. The inclined groove portions come into contact with the mating member when the outer ring is elastically deformed by a radial load received from the balls.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: June 12, 2018
    Assignee: JTEKT CORPORATION
    Inventor: Youzou Taniguchi
  • Patent number: 9951683
    Abstract: A turbocharger system for an engine includes a rotor, a primary bearing system arranged to axially and radially support the rotor to rotate on a central rotational axis, a compressor coupled to a rotor to rotate with the rotor, a turbine coupled to the rotor to rotate with the rotor, and an electromagnetic actuator adjacent to the rotor. The electromagnetic actuator selectively acts on the rotor and supplements the axial support of the primary bearing system by applying a magnetic force on the rotor in a direction parallel to the central rotational axis of the rotor.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: April 24, 2018
    Assignee: Calnetix Technologies, LLC
    Inventors: Herman Artinian, Larry Hawkins, Patrick McMullen, Keith Ropchock, Venkateshwaran Krishnan
  • Patent number: 9933011
    Abstract: The current invention relates to a pivot linkage device comprising at least one rolling bearing comprising at least one inner cage, one outer cage and a plurality of rolling elements denoted as the bearing components, the device further comprising means for protection against high voltage transients, wherein said protection means are exclusively formed by said bearing components, said bearing components being loaded by loading means arranged in such a manner that a direct electrical connection exists between these components. The current invention also relates to a method for protecting a bearing against high voltage transients by applying a preloading to the bearing's components.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: April 3, 2018
    Assignee: THALES NEDERLAND B.V.
    Inventors: Frank Leferink, Edwin Leonardus Josephus Hogeman
  • Patent number: 9541137
    Abstract: A bearing device includes an outer ring spacer and an inner ring spacer, which are interposed between outer rings of a plurality of axially juxtaposed rolling bearings and inner rings of such rolling bearings, respectively. The outer ring and the outer ring spacer are disposed within a housing while the inner ring and the inner ring spacer are mounted on a main shaft. A cooling structure including a nozzle is provided in the outer ring spacer for blowing a cooling fluid to an outer peripheral surface of the inner ring spacer to thereby supply the cooling fluid to the rolling bearing. The nozzle is provided with its discharge port side inclined forwardly with respect to the direction of rotation of the main shaft.
    Type: Grant
    Filed: September 19, 2013
    Date of Patent: January 10, 2017
    Assignee: NTN CORPORATION
    Inventors: Masatsugu Mori, Mamoru Mizutani, Yuushi Onda, Kenji Tamada, Yasuyoshi Hayashi
  • Patent number: 9293961
    Abstract: The present disclosure describes an electric motor that includes a case and a shaft at least partially disposed within the case. A bearing mechanism may also be disposed within the case, and the bearing mechanism may have a first side and a second side opposite the first side. An oil mist inlet may be positioned adjacent to a first side of the bearing mechanism and be in fluid communication with the bearing mechanism. An oil mist outlet may be positioned adjacent to the second side of the bearing mechanism and be in fluid communication with the bearing mechanism.
    Type: Grant
    Filed: March 2, 2012
    Date of Patent: March 22, 2016
    Assignee: Toshiba International Corporation
    Inventor: Noamanali N. Momin
  • Patent number: 9206848
    Abstract: Radial passages (22) that penetrate from the inner diameter side to the outer diameter side of a retainer (8) are provided between inner wall surface portions (14) of a pocket (10) facing each other in an axial direction of the retainer and a rolling element (6) so that the radial passages (22) serve as a grease reservoir as well as a grease passage for allowing the grease adhering to the rolling element (6) to move onto an outer ring raceway surface (4a). The radial passages (22) are made up of arc-shaped spaces (18) between the rolling element (6) and the inner wall surface portions (14) of the inner wall surface of a pocket (10) and segment shaped spaces (20) between the rolling element (6) and arcuate recesses (16) at the four corners of the pocket (10).
    Type: Grant
    Filed: June 18, 2012
    Date of Patent: December 8, 2015
    Assignee: NTN CORPORATION
    Inventors: Yasuhito Fujikake, Tomoya Nakamura, Hiroaki Suzuki
  • Patent number: 9103376
    Abstract: A shaft for a bearing lubrication assembly includes an outer surface and a reservoir disposed within the shaft. A first seal groove is formed on the outer surface and extends a full circumference of the outer surface. A second seal groove is also formed on the outer surface and extends the full circumference of the outer surface. A radial port extends from the reservoir to the outer surface, the radial port intersecting the outer surface between the first seal groove and the second seal groove. A plurality of chambers are formed in the shaft and disposed axially between the first seal groove and the second seal groove. The plurality of chambers are open to the outer surface with each chamber having a closed bottom disposed radially inward from the outer surface. Each chamber is also circumferentially spaced from one another.
    Type: Grant
    Filed: February 17, 2014
    Date of Patent: August 11, 2015
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Joseph Paul Krause, Jan Henry Abels
  • Patent number: 9051957
    Abstract: An oil retaining ring for retaining oil in a bearing includes a holding ring in the form of a internal Seeger circlip ring, and a baffle which is placed on an inner periphery of the holding ring. The baffle includes an outer retaining wall and an inner retaining wall which is connected to the outer retaining wall along a groove which establishes a predetermined rupture joint.
    Type: Grant
    Filed: August 7, 2013
    Date of Patent: June 9, 2015
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Dirk Sieber, Thomas Steubler
  • Publication number: 20150133261
    Abstract: A roller bearing assembly for a motor vehicle drive train is provided. The roller bearing assembly includes a bearing including an inner ring, an outer ring and roller elements rotatably supporting the inner ring with respect to the outer ring. The roller elements include a first roller element and a second roller element. The inner ring includes a first section for supporting the first roller element on the head of the pinion and a second section for supporting the second roller element on the tail of the pinion. The first section is thinner than the second section.
    Type: Application
    Filed: November 11, 2014
    Publication date: May 14, 2015
    Inventor: Rohan DUBEY
  • Patent number: 9022663
    Abstract: An oil-lubricated anti-friction bearing is provided for a horizontal arrangement of a rotational axis with a shaft seal that separates a bearing inner chamber, which accommodates rolling bodies, from a bearing outer side, and has a clamping arrangement which acts on the shaft seal from a bearing outer side in order to fix the shaft seal axially. The clamping arrangement has an outlet for oil.
    Type: Grant
    Filed: October 3, 2013
    Date of Patent: May 5, 2015
    Inventors: Andreas Palmer, Jörg Rollmann
  • Publication number: 20150110427
    Abstract: A rolling bearing assembly includes an inner ring, an outer ring, at least one row of rolling elements disposed between raceways provided on the inner and outer rings, and an annular housing having at least one of the rings is arranged. The one ring includes two half ring parts, each half ring part having a radial portion and an inner and an outer axial cylindrical portions extending from the radial portion towards the outside. The inner axial cylindrical portion extend from the radial portion by a toroidal portion defining the raceway, each of the two half ring parts, defining with the annular housing, a closed space. A closed space or spaces can store lubricant and a passageway through at least one half ring part enables lubricant to pass from the closed space to the raceways. A magnetic and/or an electronic element is mounted inside at least one closed space.
    Type: Application
    Filed: January 26, 2012
    Publication date: April 23, 2015
    Inventors: Frank Berens, Stephane Cordier, Olivier Verbe
  • Publication number: 20150110429
    Abstract: A shaft for a bearing lubrication assembly includes an outer surface and a reservoir disposed within the shaft. A first seal groove is formed on the outer surface and extends a full circumference of the outer surface. A second seal groove is also formed on the outer surface and extends the full circumference of the outer surface. A radial port extends from the reservoir to the outer surface, the radial port intersecting the outer surface between the first seal groove and the second seal groove. A plurality of chambers are formed in the shaft and disposed axially between the first seal groove and the second seal groove. The plurality of chambers are open to the outer surface with each chamber having a closed bottom disposed radially inward from the outer surface. Each chamber is also circumferentially spaced from one another.
    Type: Application
    Filed: February 17, 2014
    Publication date: April 23, 2015
    Applicant: Hamilton Sundstrand Corporation
    Inventors: Joseph Paul Krause, Jan Henry Abels
  • Patent number: 9004772
    Abstract: A rolling bearing unit includes: a rolling bearing; a grease reservoir in which grease is reserved; an outer ring spacer disposed adjacent to an outer ring of the rolling bearing; and a bellows-shaped grease medium that connects a second side wall that defines the grease reservoir on the outer ring spacer side, to a step portion of the outer ring. The grease medium is disposed so as to be impregnated with a base oil contained in the grease.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: April 14, 2015
    Assignee: JTEKT Corporation
    Inventor: Kiyoshi Tanimoto
  • Patent number: 8992090
    Abstract: A gravity drained bearing compartment with two oil shields that are located near to an air vent and an oil scavenge line, where the oil shields function to reduce circumferential momentum of the oil to prevent oil from entering the air vent and direct oil into the scavenge line.
    Type: Grant
    Filed: April 16, 2013
    Date of Patent: March 31, 2015
    Assignee: Florida Turbine Technologies, Inc.
    Inventor: Jacob A Mills
  • Patent number: 8967874
    Abstract: A lubricant retainer for use in a pump bearing assembly, the bearing assembly which in a first operating configuration is lubricated by a relatively highly viscous lubricant, and which in a second operating configuration is lubricated by a less-viscous lubricant, the bearing assembly comprising a bearing housing having a bore extending therethrough for receiving a pump drive shaft, spaced-apart bearing mounting zones within said bore with a chamber therebetween, each bearing mounting zone arranged for the in use receipt of a bearing therein. Each zone has associated therewith one lubricant retainer, the lubricant retainer being adapted to be mounted within the bore adjacent the bearing mounting zone with which it is associated so as to form a barrier between the bearing mounting zone and the chamber when the pump bearing assembly is in the first operating configuration, the retainer being removed when the pump bearing assembly is in the second operating configuration.
    Type: Grant
    Filed: June 12, 2009
    Date of Patent: March 3, 2015
    Assignee: Weir Minerals Australia Ltd.
    Inventors: Kevin Edward Burgess, Michael Christopher Foreman
  • Patent number: 8956051
    Abstract: It is desired to prevent generation of negative pressure in a bearing space and to prevent entry of foreign matter such as water into a bearing. The bearing includes an inner race (1), an outer race (3), rolling elements (5) disposed between raceways (2 and 4) of the inner and outer races and retained by a retainer (6), and seal assemblies (7) provided at the respective ends of the outer race (3). Each seal assembly (7) includes a seal case (9) fitted on one end of the outer race (3), and an oil seal (11) mounted in the seal case. A check valve (20) is mounted in the seal case (9) and allows only a flow of gas from outside the bearing into the bearing space. A filter (29) is mounted in a flow passage in the check valve and allows passage of gas and prevents passage of liquid and solids.
    Type: Grant
    Filed: September 17, 2010
    Date of Patent: February 17, 2015
    Assignee: NTN Corporation
    Inventors: Yasuhiko Shimizu, Tsukasa Toyoda, Yoriko Kosaka, Yuuki Ishizaki, Fumihiro Murakami
  • Publication number: 20150043853
    Abstract: A rolling bearing unit includes: a rolling bearing including an inner ring, an outer ring and a plurality of rolling elements disposed between the inner ring and the outer ring; an annular outer ring spacer disposed adjacent to one axial end of the rolling bearing, the outer ring spacer having a grease reservoir in the form of a groove extending along the circumferential direction of the outer ring spacer, and an opening that provides communication between the grease reservoir and the inside of the rolling bearing; and grease retained in the grease reservoir. Channels are formed in the grease to extend from the opening along the axial direction of the outer ring spacer.
    Type: Application
    Filed: July 31, 2014
    Publication date: February 12, 2015
    Inventor: Yuki SHISHIHARA
  • Publication number: 20150043852
    Abstract: A rolling bearing comprising an inner ring, an outer ring, at least one row of rolling elements between a pair of raceways, each raceway provided on the respective inner ring and outer ring, and an annular housing comprising at least one part surrounding at least one of the rings. The outer ring comprises two separate parts. Each of the two parts of the outer ring defines one closed space with the housing. The ratio between the radius of one raceway and the diameter of the rolling elements is higher than 0:55.
    Type: Application
    Filed: December 28, 2011
    Publication date: February 12, 2015
    Inventors: Thierry Adane, Stéphane Cordier, Yves-André Liverato, Pietro Tesini
  • Patent number: 8944691
    Abstract: The support assembly contains a shaft in the form of a shallow pipe. At the ends of the shaft, separated from each other, roller bearings are installed. Their inner rings are mounted on the shaft, and the outer rings are installed in the body. Roller bodies are placed between the rings. If a cogged cage is used, they are separated by the cage teeth. The tubular support of the cage slides along the rigidly fastened cylindrical rod. Oil is supplied under pressure to the passage of the cylindrical rod. The roller bearings receive loads transferred to them from the shaft, and the support sliding over the rod form together a friction bearing which compensates for the harmful impacts of the centrifugal forces on the cage.
    Type: Grant
    Filed: December 23, 2011
    Date of Patent: February 3, 2015
    Inventors: Andrey Michailovich Chumokhvalov, Victor Sergeevich Lisitsin
  • Publication number: 20140314360
    Abstract: A rolling bearing device includes a rolling bearing, and a lubricant reservoir that is formed in an outer ring spacer. A lubricant containing base oil, a gelling agent and water is disposed so as to be contained in the lubricant reservoir. The lubricant has a uniform base oil concentration. The base oil concentration is 40% by weight to 50% by weight.
    Type: Application
    Filed: April 11, 2014
    Publication date: October 23, 2014
    Applicant: JTEKT CORPORATION
    Inventor: Yasuharu MISADA
  • Patent number: 8851758
    Abstract: A bearing device includes: an outer ring having an outer ring raceway groove on its inner circumferential surface; an inner ring having an inner ring raceway groove on its outer circumferential surface; balls arranged between the outer and inner ring raceway grooves; a retainer retaining the balls; and a liquid lubricant supply device supplying oil content of grease to the space between the inner circumferential surface of the outer ring and the outer circumferential surface of the inner ring. The liquid lubricant supply device includes a liquid lubricant passage providing fluid communication between the inner circumferential surface and the outer circumferential surface; and a vibrating device contacting the grease to vibrate the grease to supply a liquid lubricant to the space between the inner circumferential surface and the outer circumferential surface via the liquid lubricant passage.
    Type: Grant
    Filed: December 10, 2010
    Date of Patent: October 7, 2014
    Assignee: JTEKT Corporation
    Inventor: Yuichiro Hayashi
  • Patent number: 8844396
    Abstract: An axle assembly for a vehicle including a first gear, and a second gear joined to a shaft extending along a longitudinal axis. The second gear engages the first gear. A bearing is disposed over the shaft distal the second gear. A housing is disposed about at least a portion of the shaft. The housing includes a first lubricant pathway spaced apart from a second lubricant pathway, wherein the first lubricant pathway routes lubricant towards the bearing and the second lubricant pathway routes lubricant away from the bearing. The first and second lubricant pathways are not in a position coplanar with a plane of rotation of the first gear.
    Type: Grant
    Filed: January 4, 2011
    Date of Patent: September 30, 2014
    Assignee: Chrysler Group LLC
    Inventors: Gary Myers, Joseph A. Rozman, Charles R. Pajtas, Shawn E. Bronner, Syed M. Akbari
  • Publication number: 20140286602
    Abstract: A rolling bearing unit includes: a rolling bearing; a grease reservoir in which grease is reserved; an outer ring spacer disposed adjacent to an outer ring of the rolling bearing; and a bellows-shaped grease medium that connects a second side wall that defines the grease reservoir on the outer ring spacer side, to a step portion of the outer ring. The grease medium is disposed so as to be impregnated with a base oil contained in the grease.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 25, 2014
    Applicant: JTEKT CORPORATION
    Inventor: Kiyoshi TANIMOTO
  • Patent number: 8821025
    Abstract: A rolling bearing includes an inner ring, an outer ring, and a plurality of rolling elements. A large number of inside dimples in which a liquid lubricant is retained and a large number of outside dimples in which a solid lubricant is retained are formed in at least one of an inner ring raceway surface and an outer ring raceway surface. The inside dimples are formed in a contact region at which the raceway surface contact the rolling elements or in a section of each non-contact region, the section being close to the contact region. The outside dimples are formed outside a portion in which the inside dimples are formed.
    Type: Grant
    Filed: September 13, 2013
    Date of Patent: September 2, 2014
    Assignee: JTEKT Corporation
    Inventors: Masahiro Suzuki, Junji Murata, Kazuyoshi Yamakawa, Toshiyuki Saito
  • Publication number: 20140221150
    Abstract: Surface indentation and oil film shortage on rollers is prevented and longer service life of a roller bearing is achieved, by preventing wear debris from being caught and accumulated in pockets of a holder of the roller bearing. Positions and dimensional relations of the diameters of inner and outer ring raceways, the inner and outer diameters of the holder, and inner and outer protrusions which are provided to pillar parts of the holder to prevent the rollers from coming off are defined such that the inner and outer protrusions of the pillar parts always do not come into contact with the outer circumferential surfaces of the rollers in the state where the rollers and the holder are incorporated between inner and outer members. As a result, lubricant oil is smoothly circulated in gaps formed between the outer circumferential surfaces of the rollers and the pillar parts of the holder.
    Type: Application
    Filed: August 30, 2012
    Publication date: August 7, 2014
    Inventors: Tsutomu Nakagawa, Masashi Nishimura, Shinji Oishi
  • Patent number: 8777489
    Abstract: A ball bearing includes an inner ring having a raceway surface, an outer ring having a raceway surface, a plurality of rolling elements rollably disposed between the raceway surface of the inner ring and the raceway surfaces of the outer ring, and a resin cage configured to retain the plurality of rolling elements between the inner ring and the outer ring. The cage is a crown type cage having an annular base portion and a plurality of pockets formed in an axial end face of the annular base portion, in which the pockets retain the rolling elements. An axial distance between an axial position of a center of gravity of the cage and a curvature center of a spherical or cylindrical inner surface of each of the pockets is 0.6 or more times a radius of curvature of the inner surface. A hybrid vehicle transmission has this ball bearing.
    Type: Grant
    Filed: August 5, 2013
    Date of Patent: July 15, 2014
    Assignee: NSK Ltd.
    Inventors: Takeshi Maejima, Takanori Tanaka, Kinji Yukawa, Youichi Matsumoto
  • Patent number: 8753016
    Abstract: A spindle unit comprises a rolling bearing including an outer ring having an outer ring raceway on an inner peripheral surface, an inner ring having an inner ring raceway on an outer peripheral surface, and rolling elements provided rollably between the outer ring raceway and the inner ring raceway, whereby a spindle is borne rotatably in a housing, and a grease supply system for supplying a grease to an inside of the rolling bearing, wherein the grease supply system supplies the grease such that a supply amount in one shot is set to 0.004 cc to 0.1 cc.
    Type: Grant
    Filed: July 29, 2003
    Date of Patent: June 17, 2014
    Assignee: NSK Ltd.
    Inventors: Naoki Matsuyama, Saburou Azumi, Yuu Koiwa, Mitsuho Aoki, Yasushi Morita, Yoshifumi Inagaki, Sumio Sugita, Ken Inaba, Kenji Yakura
  • Publication number: 20140153855
    Abstract: A rolling bearing comprising an inner ring, an outer ring, at least one row of rolling elements between the inner and outer rings, and an annular housing comprising at least one part surrounding at least one of the rings, said outer ring comprising two separate parts, each of the two parts of said outer ring defining one closed space with the housing. At least one part forming said housing or said outer ring has a sandwich structure with an inner layer made of a damping material and two outer layers made of a metallic material surrounding the inner layer.
    Type: Application
    Filed: May 16, 2011
    Publication date: June 5, 2014
    Inventors: Thierry Adane, Stephane Cordier
  • Patent number: 8734021
    Abstract: By incorporating a pump for sucking and discharging lubricating oil in a tank for storing the lubricating oil on an outside of a rolling bearing, for example, on a spacer for an outer ring in a housing for accommodating the rolling bearing and a nozzle in which an lubricating oil outlet communicating with a discharging port of the pump to supply the lubricating oil discharged from the pump to the rolling bearing is opened in an annular-shaped space between a fixed ring and a rolling ring in the rolling bearing, a cost is reduced by using a general-purpose rolling bearing, and at the same time, external devices and pipes for a lubrication are not required wholly or partially and problems of a noise made by compressed air are eliminated.
    Type: Grant
    Filed: December 14, 2005
    Date of Patent: May 27, 2014
    Assignee: JTEKT Corporation
    Inventors: Kazuya Suzuki, Kiyoshi Tanimoto, Hiroshi Ueno, Shinji Fukuda
  • Patent number: 8690442
    Abstract: A bearing for attaching a wind turbine blade to a wind turbine hub, includes a stationary ring, a movable ring which can rotate relative to the stationary ring, a grease lubrication structure, and a canister for collecting grease. The grease lubrication structure forms an outlet for releasing grease from a space between the stationary ring and the movable ring and the canister comprises an inner space with at least one inlet in releasable fluid communication with the outlet. The outlet and the inlet comprise cooperating coupling elements adapted for releasable snap-connection of the outlet to the inlet. Due to the snap-connection, the canister is easily removed and replaced in connection with maintenance of the wind turbine even though the space in the hub is typically very limited.
    Type: Grant
    Filed: April 23, 2010
    Date of Patent: April 8, 2014
    Assignee: Vestas Wind Systems A/S
    Inventors: Torben Friis Baun, Jesper Lykkegaard Andersen, Lasse Mygind Laursen
  • Patent number: 8672555
    Abstract: Rolling bearing having an inner ring (1) and an outer ring (2) with a row of rolling elements (3) held by a cage (4) between bearing races provided on the two rings, and an annular housing (5) surrounding one of said rings. Said ring forms with the housing at least one closed space (21a), (21b), inside which a lubricant is located.
    Type: Grant
    Filed: November 4, 2008
    Date of Patent: March 18, 2014
    Assignee: Aktiebolaget SKF
    Inventors: Jean-Luc Gardelle, Alexandre Manceau, Yves-Andrè Liverato
  • Patent number: 8672554
    Abstract: A bearing, in particular for a wind turbine, is provided. The bearing has a standing inner ring, an outer ring movable around the inner ring, lubricated rollers in a cage, arranged between the inner ring and the outer ring. The bearing includes a device for draining oil from a top region of the standing inner ring.
    Type: Grant
    Filed: May 3, 2011
    Date of Patent: March 18, 2014
    Assignee: Siemens Aktiengesellschaft
    Inventor: Niels Karl Frydendal
  • Publication number: 20140029882
    Abstract: An oil-lubricated anti-friction bearing is provided for a horizontal arrangement of a rotational axis with a shaft seal that separates a bearing inner chamber, which accommodates rolling bodies, from a bearing outer side, and has a clamping arrangement which acts on the shaft seal from a bearing outer side in order to fix the shaft seal axially. The clamping arrangement has an outlet for oil.
    Type: Application
    Filed: October 3, 2013
    Publication date: January 30, 2014
    Inventors: Andreas PALMER, Jörg ROLLMANN
  • Patent number: 8636113
    Abstract: A shaft arrangement having a shaft and at least one component, which is arranged on the shaft and which is to be lubricated and/or cooled by a fluid. A fluid feed device being designed to feed the fluid to the shaft arrangement radially from outside. The component is a shaft sealing ring, which rests on the shaft and which is fixed to a housing. A baffle plate, which with the shaft sealing ring defines a fluid baffle chamber and which is separated by an annular gap from the outer circumference of the shaft, is arranged axially next to the shaft sealing ring. The fluid feed device is arranged so that fluid is fed into the fluid baffle chamber.
    Type: Grant
    Filed: November 16, 2011
    Date of Patent: January 28, 2014
    Assignee: GETRAG Getriebe- und Zahnradfabrik Hermann Hagenmeyer GmbH & Cie KG
    Inventors: Daniel Knoblauch, Wolfgang Eichhorn
  • Patent number: 8616780
    Abstract: A bearing adjuster assembly is provided. The bearing adjuster assembly may have a housing, a bearing, an adjuster ring, a retainer ring, and a seal assembly. The adjuster ring exerts a force upon the bearing. The retainer ring inhibits rotation of the adjuster ring. The seal assembly inhibits movement of the retainer ring.
    Type: Grant
    Filed: January 16, 2012
    Date of Patent: December 31, 2013
    Assignee: ArvinMeritor Technology, LLC
    Inventors: Dale Kwasniewski, Robert D. Kluck, Larry Wagle
  • Patent number: 8579512
    Abstract: A drive unit for motor vehicles which has at least one electrical motor and at least one transmission assembly. The electrical motor and the transmission assembly are operatively connected to one another by at least one shaft and the shaft is rotatably mounted by at least one first rolling bearing which sits in a rotary union for the shaft in the transmission assembly.
    Type: Grant
    Filed: September 10, 2010
    Date of Patent: November 12, 2013
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Norbert Radinger, Tomas Smetana
  • Patent number: 8545106
    Abstract: Lubrication fluid is discharged through an axial gap between a outer bearing race and a bearing housing from a cavity bounded in part by a forward surface of the outer bearing race that is axially slideable within the bearing housing so as to provide for changing the axial gap. The pressure in the cavity is automatically controlled responsive to an axial force on outer bearing race by an axial position of the outer bearing race that determines a size of the axial gap, so as to provide for increasing the pressure responsive to increasing axial force over at least a portion of an operating range. The lubrication fluid in the axial gap provides for isolating axial vibrations of the outer bearing race relative to the bearing housing.
    Type: Grant
    Filed: July 8, 2010
    Date of Patent: October 1, 2013
    Assignee: Williams International Co., L.L.C.
    Inventors: Craig R. Miller, Robert S. Thompson, Jr.
  • Patent number: 8534921
    Abstract: To provide a marine drive shaft-bearing structure capable of simply filling grease without an effort and at a reduced cost. A marine drive shaft-bearing structure includes a bearing body disposed between an engine and an impeller for propulsion. Front and rear bearing members are received in a bearing chamber within the bearing body so as to rotatably support a drive shaft which connects the engine with the impeller. A grease filling portion is adapted to fill grease into the bearing chamber. The grease filling portion includes a grease filling port formed in the bearing body so as to communicate with the bearing chamber and a grease tank for storing the grease and for being detachably attached to the grease filling port.
    Type: Grant
    Filed: March 15, 2007
    Date of Patent: September 17, 2013
    Assignee: Honda Motor Co., Ltd.
    Inventor: Hiroshi Iwakami
  • Patent number: 8491195
    Abstract: A rolling bearing device includes a rolling bearing unit having rolling elements retained by an annular retainer and intervening between raceways of inner and outer rings, and a nozzle member provided proximate to the outer ring. The nozzle member is provided with an annular collar portion inserted in a bearing space delimited between the inner ring and the outer ring and having a nozzle hole. This collar portion has an outer diametric surface in the form of a retainer guide surface, and an inner diametric surface of the retainer is guided by this retainer guide surface.
    Type: Grant
    Filed: August 19, 2008
    Date of Patent: July 23, 2013
    Assignee: NTN Corporation
    Inventors: Takuji Kobayashi, Masatsugu Mori
  • Patent number: 8484942
    Abstract: A gas turbine engine has a fan, first and second compressor stages, first and second turbine stages. The first turbine stage drives the second compressor stage as a high spool. The second turbine stage drives the first compressor stage as part of a low spool. A gear train drives the fan with the low spool, such that the fan and first compressor stage rotate in the same direction. The high spool operates at higher pressures than the low spool. A lubrication system is also disclosed.
    Type: Grant
    Filed: May 30, 2012
    Date of Patent: July 16, 2013
    Assignee: United Technologies Corporation
    Inventors: Michael E. McCune, William G. Sheridan, Lawrence E. Portlock