Having Lubricating, Sealing, Packing Or Specific Bearing Means Between Impeller Or Shaft And Static Part Patents (Class 416/174)
  • Patent number: 10704531
    Abstract: A wind turbine rotor blade with a rotor blade tip, a rotor blade root, and a rotor blade connection in the region of the rotor blade root with a rotationally symmetrical flange coupling is provided which has a first and a second end. The first end of the flange coupling has multiple bores for receiving fastening means for fastening to a hub of a wind turbine. The second end is fastened in or on material of the rotor blade root. The second end extends in the direction of an axis of rotation of the flange coupling.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: July 7, 2020
    Assignee: Wobben Properties GmbH
    Inventor: Alexander Hoffmann
  • Patent number: 10697492
    Abstract: A double-row self-aligning roller bearing has rollers interposed, in two rows aligned in a bearing width direction, between an inner ring and an outer ring. The outer ring has a spherical raceway surface. Each of the rollers has an outer circumferential surface having a cross-sectional shape that matches the raceway surface of the outer ring. The rollers have lengths equal to each other and maximum diameters equal to each other, and have different distances from centers of the roller lengths to positions at which the maximum diameters are obtained.
    Type: Grant
    Filed: July 10, 2019
    Date of Patent: June 30, 2020
    Assignee: NTN CORPORATION
    Inventors: Takashi Yamamoto, Yasuyuki Inoue, Kazumasa Seko, Michio Hori
  • Patent number: 10539076
    Abstract: A self-contained lubrication fluid circulation system for use with a gas turbine engine defining a core air flowpath includes a sump configured to collect lubrication fluid and a heat source coupled in fluid communication with the sump and configured to transfer heat to the lubrication fluid. The system also includes a heat sink positioned within the sump and coupled in fluid communication with the heat source. A lubrication fluid conduit of the system is configured to channel the lubrication fluid between the heat source and the heat sink, wherein the lubrication fluid conduit is positioned entirely within the sump.
    Type: Grant
    Filed: November 10, 2015
    Date of Patent: January 21, 2020
    Assignee: General Electric Company
    Inventors: Daniel Alan Niergarth, Brandon Wayne Miller, Kyle Robert Snow, Christopher James Kroger
  • Patent number: 10447106
    Abstract: A fan motor according to the present invention comprises a rotor 10 which rotates together with a shaft 30; a stator 20 which is installed to be oriented towards the rotor 10; a top-covering bracket 60 which is coupled to an upper insulator 21 and a core 22 constituting the stator 20; a motor bracket 80 which is mounted on a fixed-installation bracket 70 and coupled to the core 22, upper insulator 21 and lower insulator 23 of the stator 20 and a printed circuit board 50; and a sealing element 100 which is filled in a space portion S formed between a lower surface of the printed circuit board 50 coupled to the bottom of the lower insulator 23 and an inner lower surface of the motor bracket 80.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: October 15, 2019
    Assignee: NEW MOTECH CO., LTD.
    Inventors: Jeong Cheol Jang, Gyeong Su Park, Woo Sung Cho
  • Patent number: 10443418
    Abstract: A seal carrier for a turbomachine, in particular a gas turbine, including a carrier base and at least one seal member, the at least one seal member being connected to the carrier base, and the at least one seal member being formed by a plurality of cavities arranged adjacent one another, in particular in a regular fashion, in the circumferential direction and the axial direction, the cavities extending from the carrier base in the radial direction, is provided. At least one stiffening element on the carrier base, the stiffening element extending along the circumferential direction and at least partially covering the at least one seal member at one of its axial end regions is provided.
    Type: Grant
    Filed: April 4, 2017
    Date of Patent: October 15, 2019
    Assignee: MTU Aero Engines AG
    Inventor: Alexander Kloetzer
  • Patent number: 10393135
    Abstract: A compressor bladed disk comprises a disk including an axial groove and a disk protrusion, a compressor blade including an attachment engaged with the axial groove of the disk, and a first locking plate disposed on the disk and the attachment, wherein the attachment includes an upstream surface and an upstream fillet connected to the upstream surface, wherein the upstream surface of the attachment and a protrusion front surface of the disk protrusion are aligned with each other, wherein a back surface of the first locking plate is disposed on the upstream surface of the attachment and the protrusion front surface of the disk protrusion, and wherein the first locking plate is disposed on the upstream fillet. The compressor bladed disk further comprises a second locking plate disposed on a downstream surface of the attachment.
    Type: Grant
    Filed: February 9, 2017
    Date of Patent: August 27, 2019
    Assignee: Doosan Heavy Industries Construction Co., Ltd
    Inventors: Matthew Montgomery, Iurii Goroshchak, Joohwan Kwak
  • Patent number: 10385765
    Abstract: An object is to is to reduce a leakage flow by reducing a clearance between an end surface of a nozzle vane, forming a variable nozzle mechanism of a variable geometry turbocharger, and a wall surface facing the end surface, and prevent the nozzle vane from being stuck due to contact of the end surface.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: August 20, 2019
    Assignee: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
    Inventors: Takao Yokoyama, Masaki Tojo, Satomi Nagae, Masaki Osako
  • Patent number: 10184712
    Abstract: A fan-motor assembly includes a fan which includes a hub and blades and generates a wind by using a rotational force, and an outer rotor fan motor which includes a stator and a rotor rotating at the periphery of the stator and is coupled to the fan by a shaft to provide the rotational force to the fan. In the fan-motor assembly, the rotor includes a magnet generating magnetic flux for rotating the rotor, and a rotor frame which surrounds the magnet to be coupled to the outer circumferential surface of the magnet and is spaced apart from the hub by the shaft so as not to be directly contacted with the hub.
    Type: Grant
    Filed: November 17, 2015
    Date of Patent: January 22, 2019
    Assignee: LG Electronics Inc.
    Inventors: Hongseok Park, Myungkwang Song, Gyeonghwan Kweon
  • Patent number: 10100643
    Abstract: A gas turbine engine including a rotor and a cooling fluid delivery system is presented. The rotor includes a disc and a plurality of blades extending radially therefrom. Each blade has a suction side and a pressure side and includes a shank, a platform and a main portion, the main portion being radially outward of the shank and separated therefrom by the platform. At least one cavity is defined, each radially inward of the platforms and between a suction side of the shank of one blade and a pressure side of the shank of an adjacent blade. The rotor includes at least one damper, the damper including a main body in contact with at least one blade and a deflector nose. The deflector nose extends from the main body into the cavity.
    Type: Grant
    Filed: November 24, 2014
    Date of Patent: October 16, 2018
    Assignee: ROLLS-ROYCE DEUTSCHLAND LTD & CO KG
    Inventors: Ioana Negulescu, Peter Davison
  • Patent number: 10060276
    Abstract: A turbine rotor includes: a rotor shaft part; a plurality of blades secured to an outer periphery of the rotor shaft part; and a seal plate configured to be fitted into a groove and configured to seal off a flow of gas in an axial direction, the groove being defined in a platform of one of the blades so as to be recessed toward an outer side in a radial direction and to extend in a peripheral direction. A blind tool hole into which a removing tool can be inserted is defined in an outside surface of the seal plate opposite an inside surface that faces a blade root of the one of the blades.
    Type: Grant
    Filed: March 19, 2014
    Date of Patent: August 28, 2018
    Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventor: Tokuhito Tanaka
  • Patent number: 10030530
    Abstract: A rotatable sealing structure for a gas turbine engine includes a first blade and a second blade. A seal is arranged between the blades and has a body that is configured for operative association with the first and second blades in a first orientation and in a second orientation to seal a gap defined between the blades.
    Type: Grant
    Filed: July 21, 2015
    Date of Patent: July 24, 2018
    Assignee: United Technologies Corporation
    Inventor: Daniel A. Snyder
  • Patent number: 9494042
    Abstract: A sealing ring configured to be pressed against a rotor disc of a turbine stage for an aircraft turbomachine, the ring including a plurality of anti-rotation pegs which prevent it from rotating in relation to the rotor disc, each peg protruding axially from a ring body and including two opposite circumferential-end surfaces, respectively configured to be located facing two directly consecutive blades carried on the rotor disc. An axially opening slot passes radially through at least one of the anti-rotation pegs.
    Type: Grant
    Filed: March 29, 2012
    Date of Patent: November 15, 2016
    Assignee: SNECMA
    Inventors: Emilie Pouzet, Pascal Casaliggi, Didier Pasquiet
  • Patent number: 9482269
    Abstract: A system for isolating electrical current in an aircraft structure includes a first structure a bearing having an outer race and an inner race and a liner disposed therebetween, the outer race having a second structure coupled thereto. A dielectric seal is secured to the outer race and engages the inner race. A conditionally non-conductive gas occupies a sealed chamber that defines a gap between the inner race and the outer race. The gap has a predetermined magnitude sufficient to prevent electrical arcing or current leakage between the inner race and the outer race at a first voltage less than that voltage resulting from a lightning strike; and/or to conduct an electrical current between the inner race and the outer race at a second voltage greater than or equal to the voltage resulting from the lightning strike.
    Type: Grant
    Filed: September 17, 2015
    Date of Patent: November 1, 2016
    Assignee: Roller Bearing Company of America, Inc.
    Inventors: John W. Fruin, Ben Anderson, Maura Simpson, Andrew Henn, Kevin Bryant
  • Patent number: 9469406
    Abstract: A method of installing a diffuser in an air cycle machine includes placing a first housing on a shaft, placing a seal plate on the shaft, and placing a diffuser on the shaft. Next, the diffuser and the seal plate are aligned with an alignment tool. The alignment tool has a first annular surface to align with a radially outer surface of the seal plate and a second annular surface to align with an annular flange on the diffuser. Finally, the diffuser is fastened to the seal plate and the alignment tool is removed from the diffuser and the seal plate.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: October 18, 2016
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Craig M. Beers, Clarence J. Wytas, Jr.
  • Patent number: 9379581
    Abstract: A drive unit for a door includes an electronically commutated multipole motor having: a stator part configured to be arrangable at a stationary structural component part; and a rotor part configured to be gearlessly connectable to a rotationally drivable element. The stator part and the rotor part include sheet metal elements stacked in a package-like manner. The sheet metal elements of the stator part and the sheet metal elements of the rotor part extend parallel to one another.
    Type: Grant
    Filed: January 13, 2014
    Date of Patent: June 28, 2016
    Assignee: Dorma Deutschland GmbH
    Inventor: Sven Busch
  • Fan
    Patent number: 9062567
    Abstract: A fan includes a stationary portion, a rotating portion, and a plurality of blades. The stationary portion includes a stator, an integral one-piece molded metal bearing housing, a bearing portion in the bearing housing, and a molded resin base portion supporting the bearing housing. The rotating portion includes a rotor holder, a rotor magnet, and a shaft. The bearing housing includes a cylindrical portion, and a protruding portion extending radially outwards from a lower portion of the cylindrical portion. The cylindrical portion includes a groove portion extending in an axial direction and arranged in a circumferential direction. The groove portion is joined to a region on the lower side of the protruding portion along a connecting position between the cylindrical and protruding portions. A resin on an upper side of the protruding portion, a resin on a lower side, and a resin in the groove portion are continuous.
    Type: Grant
    Filed: November 14, 2012
    Date of Patent: June 23, 2015
    Assignee: Nidec Corporation
    Inventor: Yasuyuki Kaji
  • Publication number: 20150139804
    Abstract: A flow-based power generating plant with a turbine, which can be acted on by a fluid flow and having a plurality of blades that extend from a blade base to a blade tip and are fastened by the blade base to a rotating rotor. The action of the fluid flow can cause the blades to twist elastically around an axis which extends through the blade base, in such a way that the pitch of the blades can be increased.
    Type: Application
    Filed: July 4, 2013
    Publication date: May 21, 2015
    Inventors: Martin Baldus, Efim Groh, Gerhard Jensen
  • Publication number: 20150125301
    Abstract: A platform seal strip, in particular for use in a gas turbine blade assembly, is provided. The platform seal strip includes an upper side, a lower side, a first portion and a second portion. The width of the first portion is smaller than the width of the second portion. The first portion and the second portion are at least partially bent downwards such that the upper side includes a convex surface portion and the lower side includes a concave surface portion.
    Type: Application
    Filed: June 12, 2013
    Publication date: May 7, 2015
    Applicant: Siemens Aktiengesellschaft
    Inventor: Paul Headland
  • Patent number: 9022722
    Abstract: A frame assembly of a ring-type fan with a pressure-releasing function includes a fan wheel, a pressuring-releasing portion, and a frame body. The fan wheel is received in an accommodating space of the frame body. The fan wheel has a hub and a plurality of blades. The pressure-releasing portion is formed on free ends of the blades and has a stopping wall and a flange extending from one end of the stopping wall. A pressure-releasing channel is formed between the stopping wall and an inner wall of the frame body. With the pressure-releasing portion being formed on the free ends of the blades, the present invention is capable of delaying the deceleration, improving the fan performance, and reducing its noise.
    Type: Grant
    Filed: November 15, 2011
    Date of Patent: May 5, 2015
    Assignee: Asia Vital Components Co., Ltd.
    Inventors: Wen-Hao Liu, Guan-Chen Yin
  • Publication number: 20150104315
    Abstract: A gas turbine engine, a fan section for a gas turbine engine, and a method for assembling a fan section of a gas turbine engine are disclosed. The fan section may include a fan hub having a slot, a spinner having a castellated spinner seal, a fan blade including an airfoil extending from a root to a tip, wherein the airfoil has a leading edge and the root is received in the slot, and a platform secured to the fan hub and arranged between adjacent fan blades. The fan section may further include a flap seal having a base secured to a side of the platform, and a flap integral with and extending from the base portion and canted toward the root and engaging the blade, the seal trimmed back from the leading edge of the airfoil.
    Type: Application
    Filed: February 13, 2014
    Publication date: April 16, 2015
    Applicant: United Technologies Corporation
    Inventor: Royce E. Tatton
  • Publication number: 20150098825
    Abstract: A bearing arrangement, comprising a rolling bearing, which includes an inner ring, an outer ring, rolling elements interposed therebetween, and a cage for holding and separating the rolling elements, wherein the inner ring presents an inner circumferential surface. A shaft is also present, wherein the rolling bearing is mounted on the shaft via the inner circumferential surface of the inner ring. The shaft during operation is meant to oscillate in its axial direction, or is positioned in an angle ? being (90?y) degrees, wherein y is between 0 and 89, or the rolling elements during operation are exposed of an axial force F, and the cage presents means for axially guiding the rolling elements against at least one of the inner ring, the outer ring or a separate element located outside the rolling bearing. The bearing can be integrated into a wind turbine main shaft arrangement.
    Type: Application
    Filed: April 17, 2013
    Publication date: April 9, 2015
    Inventors: Hans Wendeberg, Linus Efraimsson
  • Publication number: 20150098826
    Abstract: A damper bearing assembly for a gas turbine engine is disclosed. The damper bearing assembly is designed to define forward and aft axial gaps which allow for normal deflection under standard operating thrust loads, but then close during a fan blade out event to allow the increased load to transfer to the damper housing. Frictional forces between contacting parts limit torsional windup and increase torsional resistance with increasing load. The damper bearing assembly includes a damper housing configured substantially within a U-shaped spring finger housing and a spanner nut with a radial hook portion coupled to the spring finger housing. The damper housing is coupled to the spring finger housing such that it is substantially confined within the U-shaped void. The spanner nut is coupled to the spring finger housing such that the radial hook portion is configured to limit the deflection of the spring finger housing and damper housing during a fan blade out event.
    Type: Application
    Filed: April 22, 2013
    Publication date: April 9, 2015
    Inventors: Bruce Alan Carter, Ravindra Shankar Ganiger, Stephanie Frances Drummond, Vivek Nema
  • Patent number: 8992168
    Abstract: An inner diameter vane seal for a gas turbine engine comprises an annular, ring-like body having inner and outer diameter rims, forward and aft faces and an air passage. The outer diameter rim extends circumferentially for engaging inner diameter ends of stator vanes. The inner diameter rim extends circumferentially and is spaced radially from the inner outer diameter rim. The forward and aft faces extend radially between the outer diameter rim and the inner diameter rim. The air passage extends from the forward face to the aft face between the inner and outer diameter rims.
    Type: Grant
    Filed: October 28, 2011
    Date of Patent: March 31, 2015
    Assignee: United Technologies Corporation
    Inventors: James W. Norris, Joseph W. Bridges, Jr.
  • Publication number: 20150086359
    Abstract: The invention is directed to a rotor blade assembly for a wind turbine designed to mitigate pitch bearing loads. The rotor blade assembly includes a rotor blade, a pitch bearing, and at least one shim plate. The rotor blade includes a body extending between a blade root and a blade tip. The pitch bearing includes an outer race, an inner race, and a plurality of roller elements between the outer race and the inner race. As such, the inner race is rotatable relative to the outer race. The at least one shim plate may be configured between the inner race and the blade root or between the outer race and a hub of the wind turbine so as to mitigate loads experienced by the pitch bearing.
    Type: Application
    Filed: September 25, 2013
    Publication date: March 26, 2015
    Applicant: General Electric Company
    Inventors: Eric Morgan Jacobsen, Adam Daniel Minadeo, Alexander William Vossler
  • Patent number: 8985946
    Abstract: A mounting system for mounting a blade to a rotor body includes a pitch control mechanism including an anchor and a pitch change rod extending radially outwardly from the anchor to join to a base of the blade. The anchor and the rod are rotatable about the longitudinal axis of the rod to vary the blade pitch. The pitch control mechanism further includes a torque-transmitting formation between the blade and the anchor such that pitch-varying torque can be transmitted to the blade through the torque-transmitting formation while allowing relative radial movement between the blade and the anchor. The system includes a primary bearing formation, which transmits blade centrifugal loads to the rotor body while accommodating variation of the blade pitch, and secondary bearing formation, which transmits pitch change mechanism centrifugal loads to the rotor body while accommodating rotation of the anchor and the rod during variation of the blade pitch.
    Type: Grant
    Filed: May 30, 2012
    Date of Patent: March 24, 2015
    Assignee: Rolls-Royce PLC
    Inventors: Kenneth F. Udall, Alexander V. Lavrenko
  • Publication number: 20150078900
    Abstract: A turbine blade having a squealer tip at a radially outer end of the turbine blade with a plurality of abradable coating cutting tips extending radially therefrom toward a ring segment is disclosed. During operation, the abradable coating cutting tips may cut into an abradable coating on the ring segments of the turbine engine that are positioned radially outward from the turbine blade. The plurality of abradable coating cutting tips may include one or more cutting arrises extending from the squealer tip to an outermost tip of the at least one of the abradable coating cutting tips.
    Type: Application
    Filed: September 19, 2013
    Publication date: March 19, 2015
    Inventor: David B. Allen
  • Patent number: 8979483
    Abstract: A bearing assembly for a gas turbine engine includes a bearing, an outer assembly disposed about an axis and having an angled perimeter, and an inner assembly supporting the bearing and having a surface angled to slide against and attach to the angled perimeter as the bearing is aligned with the axis.
    Type: Grant
    Filed: November 7, 2011
    Date of Patent: March 17, 2015
    Assignee: United Technologies Corporation
    Inventors: Gabriel L. Suciu, Christopher M. Dye, Steven J. Bauer
  • Publication number: 20150064009
    Abstract: A rotor structure of a fan includes a bushing, a hub, a shaft and a plurality of blades. The hub has a top portion and a sidewall, and the top portion of the hub covers the bushing. The hub and the bushing are made by the same material. One end of the shaft is connected to the bushing, and the shaft is disposed inside the top portion. The blades are disposed on the outer side of the sidewall of the hub. A manufacturing method of the rotor structure is also disclosed.
    Type: Application
    Filed: December 30, 2013
    Publication date: March 5, 2015
    Applicant: Delta Electronics, Inc.
    Inventors: Yueh-Lung HUANG, Chien-Ming LEE, Tine-Kun LIN, Hai-Feng LI, Ming-Kai HSIEH, Chien-Chih LEE
  • Publication number: 20150064008
    Abstract: A turbomachine bucket may include an airfoil, a shank coupled to the airfoil, and an angel wing coupled to the shank, the angel wing having an axially extending tip sized to seal with a plurality of discouragers, each discourager having a different axial extent. Various methods for modifying an angel wing to accommodate different sized discouragers are also disclosed.
    Type: Application
    Filed: September 4, 2013
    Publication date: March 5, 2015
    Applicant: General Electric Company
    Inventors: Gareth William David Lewis, Andrew Daniel Grafitti, Jonathan Matthew Lomas, Felipe Roman-Morales, Ronald Lee Souther
  • Patent number: 8967969
    Abstract: A prestressing device extending about an axis between a first plane that is substantially perpendicular to the axis and a second plane that is substantially parallel to the first plane and axially offset relative to the latter. The device includes a first annular body extending in the first plane, and a first series of at least three tabs, each of which is connected to the first body and extending in an essentially radial direction, each of the tabs of the first series including a planar surface extending in the second plane. This arrangement ensures surface contact between the parts of the elements to be subjected to prestressing. The device can be used for example for a rotor, and for example for a rotor of an unducted propeller for a turbine engine.
    Type: Grant
    Filed: July 23, 2010
    Date of Patent: March 3, 2015
    Assignee: Snecma
    Inventors: Eric Jacques Boston, Michel André Bouru, Laurent Jablonski, Philippe Gérard Edmond Joly
  • Patent number: 8967970
    Abstract: A fluid pump 1, particularly a water pump 1, wherein an impeller 11 comprising a plain bearing bush 12 is rotatably supported on a bearing pin 13. The impeller 11 and the plain bearing bush 12 are thereby made of an identical base material in one or more pieces. A further material is mixed into the base material of the plain bearing bush 12, improving the sliding properties of the plain bearing bush 12 on the bearing pin 13.
    Type: Grant
    Filed: July 5, 2010
    Date of Patent: March 3, 2015
    Assignee: Robert Bosch GmbH
    Inventors: Bernd Hein, Christoph Heier
  • Publication number: 20150056079
    Abstract: A roller bearing comprises an outer ring, an inner ring, a plurality of rollers arranged between the outer ring and the inner ring, and a plurality of retainer segments having a plurality of column parts extending in a direction along a shaft so as to form a pocket for holding the roller, and connection parts and extending in a circumferential direction to connect the plurality of column parts, and continuously lined with each other in the circumferential direction between the outer ring and the inner ring. The column part is positioned at an circumferential end of the retainer segment. Here, a circumferential outer side end face of the column part positioned at the end is flat, and a circumferential inner side end face of the column part positioned at said end is provided with a recess recessed in the circumferential direction to reduce the thickness of the column part.
    Type: Application
    Filed: November 5, 2014
    Publication date: February 26, 2015
    Inventors: Tatsuya OMOTO, Shoichi HIOKI, Mitsuo SASABE, Eiichi NAKAMIZO, Tomoya SAKAGUCHI
  • Patent number: 8961127
    Abstract: A shaft cap to connect between a shaft and a tie rod on a rotative assembly includes a circular portion with a central opening for connecting to the tie rod; a conical portion extending out from the circular portion at a slope; and a pilot around the outer edge of the conical portion. The pilot includes an outer lip to connect to an end of the shaft, an inner portion to connect to the inner circumference of the shaft and an undercut portion between the outer lip and the inner portion.
    Type: Grant
    Filed: October 24, 2011
    Date of Patent: February 24, 2015
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Darryl A. Colson, Craig M. Beers
  • Publication number: 20150030453
    Abstract: The present invention relates to a bearing assembly for supporting a shaft having a toroidal roller bearing arrangement. The bearing assembly includes a first set of rolling elements formed of toroidal roller elements arranged in a first row and interposed between an inner ring providing a first inner raceway and an first outer ring providing a first outer raceway, and a thrust bearing arrangement having a second set of rolling elements arranged in a second row. The rolling elements are in contact with and arranged to cooperate with a second inner raceway and a second outer raceway for supporting axial loads and for restricting axial movement of the shaft in relation to the first outer ring. The present invention also relates to a method for manufacturing a bearing assembly for supporting a shaft.
    Type: Application
    Filed: February 18, 2013
    Publication date: January 29, 2015
    Inventor: Christian Zang
  • Patent number: 8936432
    Abstract: A low density abradable coating for use as a seal material is formed by depositing a metal bond coat followed by depositing a low density, porous, abradable metal seal layer on the bond coat. The seal layer is formed by co-depositing metallic sponge particles and metal precursor particles. The metal precursor particles decompose during heat treatment leaving fine pores distributed throughout the microstructure.
    Type: Grant
    Filed: October 25, 2010
    Date of Patent: January 20, 2015
    Assignee: United Technologies Corporation
    Inventor: Christopher W. Strock
  • Publication number: 20150017000
    Abstract: A composite sliding bearing is disclosed. The composite sliding bearing has an inner ring, formed of split rings halved by a center in an axial direction, which has V-section inclined surfaces formed on the outer diameter surfaces of the split rings, bearing pads disposed separately on the inclined surfaces of the split rings along the outer diameter surface of the inner ring, and an outer ring on the inner diameter surface of which is formed a V-section umbrella-shaped inclined surface corresponding to the outer diameter surface of the inner ring. A radial load and axial load applied to the bearing are supported by sliding the inner diameter surface of the outer ring on the sliding surfaces of the bearing pads in a condition in which the bearing pads are fluid lubricated.
    Type: Application
    Filed: September 4, 2014
    Publication date: January 15, 2015
    Applicant: FUJI ELECTRIC CO., LTD.
    Inventors: Shoji SATO, Masahiro HOSHI
  • Publication number: 20150016999
    Abstract: An impeller includes a shell having a plurality of blades. The shell may also define a cavity. The impeller may further include a backplate that engages at least a portion of the shell. The backplate can include a post which can be coupled to the impeller through a fastener such as a threaded nut. The backplate can be thereafter clamped to the impeller shell. Seals can be provided in the impeller, such as in the backplate. The backplate and impeller shell can be piloted onto each other. In some forms splines can be used to secure the backplate to the impeller shell.
    Type: Application
    Filed: December 30, 2013
    Publication date: January 15, 2015
    Inventors: Patrick L. Lunsford, Samuel J. Lancombe
  • Patent number: 8926269
    Abstract: A seal carrier for a seal used between rotating and non-rotating components includes an arcuate sheet metal seal carrier body formed to include a stepped, conical configuration wherein an inner diameter at a forward end is larger than the diameter at an aft end, with plural stepped sections defined by alternating radial and axial portions between the forward end and the aft end. Each axial portion is adapted to carry a seal element, preferably a honeycomb seal. Mounting flanges are provided at the forward end and the aft end of the arcuate sheet metal seal carrier body to enable attachment to the non-rotating component.
    Type: Grant
    Filed: September 6, 2011
    Date of Patent: January 6, 2015
    Assignee: General Electric Company
    Inventors: Daniel Jackson Dillard, Gregory Thomas Foster, Niranjan Gokuldas Pai
  • Publication number: 20140377070
    Abstract: The present application relates to a rotor drum of a low-pressure compressor of an axial turbomachine. The drum includes a wall generally symmetrical in revolution about an axis and following a generally curved profile. The wall is configured to support a plurality of blade rows. A first blade row is formed by an annular platform integrally formed with the wall at the peak of its profile in relation to the axis; and a second blade row directly downstream of the first; and a third blade row directly upstream of the first; are formed by one or more blade-retaining grooves formed on the wall. The first blade row and the drum form an integral assembly, eliminating certain vibrations. Anchoring the blades is hybrid or mixed. The rotor may be mounted in a housing with ring-shaped stators.
    Type: Application
    Filed: June 25, 2014
    Publication date: December 25, 2014
    Inventor: Enrique Penalver Castro
  • Publication number: 20140377063
    Abstract: A wind power plant having a sliding bearing with a first and second bearing component which are arranged to rotate relative to one another about a common rotational axis is provided. The sliding bearing has at least one sliding lining arranged between the first and second bearing component and has a contact face with a lubricant. The contact face has a sliding lining duct opening to a sliding lining duct, wherein the sliding lining duct crosses the sliding lining and feeds lubricant into a region between the first and second bearing component. The sliding lining has a groove on the contact face, surrounding the sliding lining duct opening. An operation of the wind power plant to generate electric current is also provided. The sliding bearing operates hydrostatically during a startup phase of the rotational movement and/or operates hydrodynamically during a phase of the rotational movement with a constant rotational speed.
    Type: Application
    Filed: June 14, 2014
    Publication date: December 25, 2014
    Applicant: Siemens Aktiengesellschaft
    Inventors: Pierre-Antoine Guerenbourg, Bo Pedersen, Kim Thomsen
  • Patent number: 8915715
    Abstract: The invention is directed to a high-power wind energy installation, wherein the rotor blades, to minimize the static and/or dynamic structural load and/or to damp vibrations, for example by generating counterforces to compensate for interference forces and moments, can be adjusted even when a constant wind velocity v? does not warrant it, and to a method for operating such a wind energy installation; it is provided according to the invention to configure at least one rotor blade bearing therein as a rolling bearing that is optimized for a high number of inner race revolutions in that the total dynamic axial load rating Ca,total, defined according to DIN ISO 281, of all those rows (?) of a utilized rolling bearing according to DIN ISO 281 which participate in force transmission in an axial direction is at least 1.
    Type: Grant
    Filed: February 16, 2009
    Date of Patent: December 23, 2014
    Assignee: IMO Holding GmbH
    Inventor: Werner Schröppel
  • Patent number: 8915708
    Abstract: A turbocharger includes a turbine section, a compressor section and a bearing section. A turbine wheel and a compressor wheel are mounted on a shaft and the shaft is rotatably mounted in a bore of a housing. A lubrication system circulates lubricant through the bearing section. First and second spaced apart seals are positioned along the shaft. A recess is positioned between the first seal and the second seal to define an air buffer chamber. The air buffer chamber is provided with pressurized air to discourage lubricant leakage past the first seal.
    Type: Grant
    Filed: June 24, 2011
    Date of Patent: December 23, 2014
    Assignee: Caterpillar Inc.
    Inventors: Nan Yang, Jeff A. Jensen, Robert C. Griffith
  • Publication number: 20140369839
    Abstract: A sleeve housing of a bearing mechanism according to a preferred embodiment of the present invention includes a cylindrical portion arranged to cover outer circumferences of a sleeve and a plate portion, and a bottom portion arranged to close a lower portion of the cylindrical portion. The bottom portion includes a plurality of projecting portions arranged in a circumferential direction in an upper surface of the bottom portion. Each projecting portion is arranged to project upward to be in contact with a lower surface of the sleeve. Each of the projecting portions and the plate portion are arranged radially opposite each other. At least a portion of an adhesive is arranged to exist between an outer circumferential surface of the sleeve and an inner circumferential surface of the cylindrical portion.
    Type: Application
    Filed: January 7, 2014
    Publication date: December 18, 2014
    Applicant: NIDEC CORPORATION
    Inventors: Takehito Tamaoka, Kazuhiko Fukushima
  • Patent number: 8911204
    Abstract: A method for servicing a gas turbine engine includes disassembling a bearing compartment, providing access from a forward side of the gas turbine engine to a gearbox contained within said bearing compartment. The gas turbine engine provides a core flow path that extends from the forward side aftward in a core flow direction. The method includes servicing a component located within the bearing compartment. A method for servicing a gas turbine engine includes providing access from a forward side of a front center body assembly, and servicing a component located within a bearing compartment aft of the front center body assembly. The gas turbine engine includes a seal package located aft of a bearing package. A front wall is mounted to the front center body support and is removable from a front center body support to access at least one of the gearbox, the bearing package and the seal package.
    Type: Grant
    Filed: January 2, 2013
    Date of Patent: December 16, 2014
    Assignee: United Technologies Corporation
    Inventors: Todd A. Davis, Brian P. Cigal
  • Publication number: 20140363297
    Abstract: The Ni based forged alloy has a composition containing, on the basis of mass percent, Al: 0.5 to 1.0%, Cr: 17 to 21%, Fe: 17 to 19%, Nb: 4.5 to 5.5%, Ti: 0.8 to 1.3%, W: 3.0 to 6.0%, B: 0.001 to 0.03%, C: 0.001 to 0.015%, and Mo: 1.0% or less, the balance being Ni and inevitable impurities. The alloy includes carbide grains of the contained elements. The carbide grains have an average grain diameter of 20 ?m or less. Thus, a Ni based forged alloy is provided which is excellent in high-temperature fatigue property and has a moderate macrosegregation property.
    Type: Application
    Filed: June 10, 2014
    Publication date: December 11, 2014
    Inventors: Takashi SHIBAYAMA, Shinya IMANO, Hideki TAMAKI
  • Publication number: 20140356170
    Abstract: An oil return structure for fan includes a base, a bearing, a retaining ring and a rotor. The base has a bearing cup internally defining a receiving space for receiving the bearing therein. The bearing has a centered and axially extended shaft hole. The retaining ring is located at a front end of the bearing and has a central hole. The rotor includes a hub and a shaft. The shaft is extended through the central hole of the retaining ring into the shaft hole of the bearing, and is provided with an annular groove corresponding to the retaining ring. Oil in the bearing flowing to the annular groove during fan operation is centrifugally pulled out of the shaft and then caught by the retaining ring, from where the oil returns to the bearing. Therefore, loss of oil from the bearing is largely reduced to ensure extended fan service life.
    Type: Application
    Filed: May 30, 2013
    Publication date: December 4, 2014
    Applicant: ASIA VITAL COMPONENTS CO., LTD.
    Inventors: Bor-Haw Chang, Ping-Tsang Ho, Chung-Shu Wang, Jyun-Yang Chang
  • Patent number: 8894387
    Abstract: An axial flow pump for a blood circulating pump for the circulation of blood, the rotor the rotor being constructed and arranged to impel blood in a downstream direction upon rotation of the rotor about its axis in a forward circumferential direction. The rotor is provided with hydrodynamic thrust bearing surfaces, each such thrust bearing surface being constructed and arranged to apply a hydrodynamic force to the rotor with a component of the force in the downstream direction upon rotation of the rotor in the forward circumferential direction.
    Type: Grant
    Filed: June 17, 2011
    Date of Patent: November 25, 2014
    Assignee: HeartWare, Inc.
    Inventor: Daniel G. White
  • Publication number: 20140341741
    Abstract: A bearing arrangement to avoid a static charge in a bearing is provided. A bearing arrangement for a wind turbine comprises a first bearing shell that is prepared to be coupled to a first part of the wind turbine. The bearing arrangement comprises a second bearing shell that is prepared to be coupled to a second part of the wind turbine. The first and the second bearing shell are arranged in a way that the first and the second bearing shell are rotatable with respect to each other and have a first isolation ring for electrical isolation, so that the first part of the wind turbine can be rotated with respect to the second part of the wind turbine and avoid static discharge.
    Type: Application
    Filed: April 12, 2012
    Publication date: November 20, 2014
    Applicant: SIEMENS AKTIENGESELLSCHAFT
    Inventor: John Nieuwenhuizen
  • Patent number: 8882446
    Abstract: A bearing system for a rotor in rotating machines, such as compressors, pumps, turbines, expanders, has points of bearing and sealing for the rotor each being in the form of a combined bearing and sealing formed by a stator situated within a rotating machine house and surrounding the rotor. The stator is formed with a bore, whereby an annular clearance is created between stator and rotor, and the bore is having sectional area gradually increasing in the direction of larger pressure within the rotating machine.
    Type: Grant
    Filed: January 29, 2009
    Date of Patent: November 11, 2014
    Assignee: Statoil Petroleum AS
    Inventor: Harald Underbakke
  • Patent number: 8882447
    Abstract: This hydraulic machine (1) has a wheel (2) mounted to move in rotation relative to a stationary structure (9) and about a stationary axis of rotation (X2), the wheel (2) being designed to pass a forced flow (E) of water therethrough. A hydrostatic bearing (100), provided between firstly an element (111) constrained to rotate with the wheel (2) and, secondly a portion (91) of the stationary structure (9), is disposed between a first zone (Z1) of the machine, which zone is in fluid communication with the forced flow (E) and in which zone, during operation, a pressure prevails that is similar to the pressure of the forced flow, and a second zone (Z2) of the machine that is isolated from the forced flow by said bearing.
    Type: Grant
    Filed: December 24, 2008
    Date of Patent: November 11, 2014
    Assignee: Alstom Renewable Technologies
    Inventors: Yves Bouvet, Jean Francois Bertea