Bearing, Seal, Or Liner Between Shaft Or Shaft Sleeve And Static Part Patents (Class 415/229)
  • Patent number: 10612560
    Abstract: An airfoil material loss control structure is provided. This structure includes at least one fuse zone that, during impact from a foreign object, fail before the surrounding structure. In a further aspect, a rotary machine is provided. This rotary machine includes a ducted fan gas turbine engine including a composite airfoil with at least one fuse zone.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: April 7, 2020
    Assignee: General Electric Company
    Inventors: Nicholas Joseph Kray, Kishore Budumuru, Jain Nitesh, Michael Harvey Schneider
  • Patent number: 10487917
    Abstract: A gas turbine engine comprises a gearbox comprising a sun gear, an annulus gear, a plurality of planet gears and a carrier. Each planet gear is rotatably mounted in the carrier by a bearing. The sun gear meshes with the planet gears and the planet gears mesh with the annulus gear. The sun gear, the planet gears and the annulus gear comprise helical gear teeth. The annulus gear is secured to a surrounding structure by a radially extending member. A face of the flange nearest the middle of the annulus gear is axially spaced from the middle of the annulus gear by a first distance. The reference diameter of the annulus gear is radially spaced from a point at which the radially extending member is secured to the surrounding structure by a second distance. The ratio of first distance to second distance is between and including 0.5 and 1.2 such that misalignment between the annulus gear and the planet gears is reduced to minimise vibrations, noise, stress and wear of the gearbox.
    Type: Grant
    Filed: September 21, 2016
    Date of Patent: November 26, 2019
    Assignee: ROLLS-ROYCE plc
    Inventor: Pawel B Chmylkowski
  • Patent number: 10385975
    Abstract: A rotary machine system includes: a rotary machine including a gas seal portion; a gas seal device connected to the rotary machine and that supplies a seal gas to the gas seal portion; a pressure sensor that detects a pressure of the seal gas; a vent portion that discharges the seal gas discharged from the gas seal portion; and a vent pressure sensor that detects a pressure in the vent portion. The rotary machine includes: a casing through which a working fluid flows; a rotatable rotary shaft that passes; and the gas seal portion provided between the casing and the rotary shaft and that seals the working fluid by the seal gas having a pressure higher than a pressure of the working fluid in the casing. The gas seal device includes: a pressure regulating valve; and a control part that controls the pressure regulating valve.
    Type: Grant
    Filed: October 15, 2015
    Date of Patent: August 20, 2019
    Assignee: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventors: Ryo Egami, Takeshi Kaneko, Kazutoshi Yokoo, Masaki Shakuda, Masahiro Hayashi, Tomoaki Takeda
  • Patent number: 10323541
    Abstract: A housing for retention of the outer race of a bearing of a gas turbine engine includes an arrangement of spring fingers that yields a lightweight housing capable of withstanding very high radial loads combined with very high torsional windup and axial thrust load. Controlled circumferential gaps on both sides of each spring finger limit the deflection and self-arrest the distortion of the housing. The spring fingers define at least one side edge that extends at an angle relative to the axial direction. An axial gap is created on the aft end by a portion of the spring finger beam structure that opposes an axial face of the housing and limits the axial distortion. A radial gap created between interface hardware of the housing and the inner retention housing also acts to retain the spring finger housing under load in a radial direction.
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: June 18, 2019
    Assignee: General Electric Company
    Inventors: Ravindra Shankar Ganiger, Shivakumar Basavanna, Jacob Patrick Miller, Charles Andrew Corman, Mark Leonard Hopper
  • Patent number: 10316692
    Abstract: A method of suppressing shaft vibration of a turbocharger capable of being driven by a motor includes: a specific-vibration-state determination step of determining whether a rotor shaft of the turbocharger is in a specific vibration state in which a magnitude of shaft vibration of the rotor shaft is, or is likely to be, greater than a predetermined magnitude; an excited state determination step of determining whether the motor is in an excited state in which an exciting voltage is applied to the motor; and a vibration suppression execution step of applying the exciting voltage to the motor if it is determined that the rotor shaft is in the specific vibration state in the specific-vibration-state determination step and it is determined that the motor is not in the excited state in the excited state determination step.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: June 11, 2019
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Tadashi Yoshida, Musashi Sakamoto, Ryoji Sasaki, Yoshihisa Ono, Hidetaka Nishimura, Takeshi Tsuji
  • Patent number: 10307709
    Abstract: A method for continuously removing water vapor from a carrier gas is disclosed. This method includes, first, causing direct contact of the carrier gas with a liquid mixture in a separation chamber, the carrier gas condensing at a lower temperature than the water vapor. A combination of chemical effects cause the water vapor to condense, complex, or both condense and complex with the liquid mixture.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: June 4, 2019
    Assignee: Sustainable Energy Solutions, LLC
    Inventors: Larry Baxter, Aaron Sayre, Stephanie Burt, Nathan Davis
  • Patent number: 10288046
    Abstract: A planetary drive assembly includes a first housing that is coupled a top end of a stanchion. A drive unit is rotatably positioned in the first housing. A plurality of wind propellers is coupled to the drive unit thereby facilitating the wind propellers to rotate the drive unit. A planetary driven unit is rotatably positioned in the first housing. The planetary driven unit is in mechanical communication with the drive unit such that the drive unit rotates the planetary driven unit when the wind propellers rotate the drive unit. The planetary driven unit is mechanically discrete from the first housing. Thus, the planetary driven unit inhibits the first housing from being exposed to rotational torque. The planetary driven unit is coupled to a generator thereby facilitating the wind propellers to rotate the generator.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: May 14, 2019
    Inventors: Jiying Zhao, Jianli Li
  • Patent number: 10145302
    Abstract: A gas turbine engine according to an exemplary aspect of the present disclosure includes, a shaft including at least one bearing, a speed change device in communication with the shaft, a first lubrication system in communication with the at least one bearing and a second lubrication system in communication with the speed change device.
    Type: Grant
    Filed: February 26, 2014
    Date of Patent: December 4, 2018
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventor: Gary D. Roberge
  • Patent number: 10119418
    Abstract: A turbocharger bearing assembly of a split turbocharger for an engine is disclosed in which key rotational parts are rotatably supported by a pair of spaced apart bearings located in a bore of a tubular bearing housing forming part of a bearing assembly. The rotational parts of the turbocharger bearing assembly are balanced as a unit before the turbocharger bearing assembly is assembled to a cylinder block of the engine by insertion into a bore formed in the cylinder block.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: November 6, 2018
    Assignee: Ford Global Technologies, LLC
    Inventor: Sam Penzato
  • Patent number: 10069381
    Abstract: An electric motor includes a stator and a rotor. The stator includes a motor housing with an open end and an end cover mounted to the open end. The rotor includes a rotor shaft that extends through the end cover. The end cover includes a bearing that supports the rotor shaft. The rotor shaft and motor housing are made of an electrically conductive material and are electrically connected with each other. The motor housing, end cover, bearing and rotor shaft cooperatively form an electromagnetic shield suppressing electromagnetic interference generated by the motor. Optionally, the rotor shaft drives a coaxial worm shaft of a gearbox by an insulating member, which further suppresses electromagnetic interference.
    Type: Grant
    Filed: June 9, 2015
    Date of Patent: September 4, 2018
    Assignee: JOHNSON ELECTRIC S.A
    Inventors: Qing Bin Luo, James Ching Sik Lau, Wen Ming Wu, Gui Hong Tian, Xin Peng Wei, Wing Cheung Lam, Qiang Xu, Zhong Hai Chen
  • Patent number: 10006468
    Abstract: Conventionally, turbocharger bearing housings are cast, and then oil passageways are drilled or bored into the casting. As a result, bores are limited to straight lines extending from drill access points. Greater design flexibility is provided by pre-staging in a mold a collection of metal pipes which will define one or more of oil, air and water galleries, and then casting a bearing housing around the pipes. This provides almost unlimited freedom in shaping and locating the oil bores and other features.
    Type: Grant
    Filed: March 19, 2013
    Date of Patent: June 26, 2018
    Assignee: BorgWarner Inc.
    Inventors: Michael Fischer, Martin Bihy, Sean Rylance, Rob Daniels, James Finley
  • Patent number: 9909561
    Abstract: A rotor assembly for a wind turbine comprises a hub, a blade provided with a blade root portion and a strengthener for the blade root portion. The strengthener comprises a supporting part that strengthens the blade root portion and the supporting part comprises a supporting portion to temporarily support the blade. The supporting portion is made in one piece with the supporting part. The rotor assembly also comprises a number of first fasteners and second fasteners to fasten the blade root portion to the hub. The second fasteners are adapted to fasten the supporting part of the strengthener to the blade root portion when the latter is not fastened to the hub.
    Type: Grant
    Filed: June 21, 2013
    Date of Patent: March 6, 2018
    Assignee: ALSTOM Renewable Technologies
    Inventors: Isaac Gil Mollà, Ricardo Lázaro
  • Patent number: 9878407
    Abstract: A method for removing a twin-spool turbine including a front fan, a HP module with a HP rotor, and a LP turbine module, an intermediate casing including a support bearing for the HP rotor, the HP rotor being retained in the bearing by a link nut, the method including inserting a tool for unscrewing the link nut after having released access to the link nut, and preheating the link nut before starting the unscrewing tool.
    Type: Grant
    Filed: May 2, 2013
    Date of Patent: January 30, 2018
    Assignee: SNECMA
    Inventors: Fabrice Tailpied, Herve Dagron, Cedric Mustiere
  • Patent number: 9844617
    Abstract: Various “contactless” bearing mechanisms including hydrodynamic and magnetic bearings are provided for a rotary pump as alternatives to mechanical contact bearings. In one embodiment, a pump apparatus includes a pump housing defining a pumping chamber. The housing has a spindle extending into the pumping chamber. A spindle magnet assembly includes first and second magnets disposed within the spindle. The first and second magnets are arranged proximate each other with their respective magnetic vectors opposing each other. The lack of mechanical contact bearings enables longer life pump operation and less damage to working fluids such as blood.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: December 19, 2017
    Assignee: TC1 LLC
    Inventors: Richard K. Wampler, David M. Lancisi
  • Patent number: 9782795
    Abstract: A method for coating a pump component (23, 31), in particular, a part of an axial piston pump (7), having the steps of providing a blank of the component (23, 31), providing at least one recess in the blank, filling a powdery coating material into the associated recess, melting the coating material under a protective gas atmosphere and material-removing processing of the blank to form at least one sliding and/or bearing surface (6) from the coating.
    Type: Grant
    Filed: April 30, 2014
    Date of Patent: October 10, 2017
    Assignee: HYDAC DRIVE CENTER GMBH
    Inventor: Bernd Wykydal
  • Patent number: 9719367
    Abstract: An exemplary method of controlling fluid flow in a ram air turbine assembly, includes redirecting flow moving in an axial direction against the surface of a drive shaft to flow moving in a radial direction away from the drive shaft to limit flow of the fluid from a hydraulic pump to a generator.
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: August 1, 2017
    Assignee: Hamilton Sundstrand Corporation
    Inventor: David Everett Russ
  • Patent number: 9709059
    Abstract: This invention relates to a cross-flow wave making pump comprising an impeller shell forming a water intake and a water outlet, an impeller assembly pivotally connected to two ends of the impeller shell, and a motor used for driving the impeller assembly; wherein, the impeller assembly comprises an impeller used for driving a liquid flow, a first turntable and a second turntable respectively fixed at two ends of the impeller, wherein the first turntable is provided with a shaft rotatably mounted in the impeller shell, the second turntable is provided with a cavity used for receiving a rotor shaft of the motor. The embodiments of the present invention can provide a sufficient liquid-circulation in a container, and significantly reduce the dead zone where the liquid flows extremely slowly.
    Type: Grant
    Filed: April 11, 2014
    Date of Patent: July 18, 2017
    Assignee: Guangzhou Maiguang Electronic Science Technology Co., Ltd.
    Inventor: Weixin Liang
  • Patent number: 9689312
    Abstract: The invention concerns a gas turbine engine component (27) comprising an outer ring (21), an inner ring (20), a plurality of circumferentially spaced elements (22) extending between the inner ring (20) and the outer ring (21), wherein an annular load transfer structure (23) extends circumferentially along an inner side of the inner ring (20) and also inwards in a radial direction of the component (27). The first portion (23a), at least along a part of the circumference, is inclined in the radial direction in relation to a second portion (23b), wherein the two inclined portions (23a, 23b) are connected in a connection zone (26) between the inclined portions (23a, 23b), and wherein a radial and/or axial position of the connection zone (26) varies along the circumference such that the radial/axial position of the connection zone in a location that circumferentially corresponds to a first element (22a), i.e.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: June 27, 2017
    Assignee: GKN Aerospace Sweden AB
    Inventor: Roger Sjöqvist
  • Patent number: 9217439
    Abstract: Disclosed is a low-cost composite-type vacuum pump having a strength capable of withstanding high loads and using a cylindrical rotor formed from a fiber-reinforced plastic material. Having a turbo-molecular pump section (14) and a thread groove pump section (15), the composite vacuum pump is formed by press-fitting a joint portion (20a) of a rotor (17) of the turbo-molecular pump section (14) into the upper end section of a cylindrical rotor (21) formed from the fiber-reinforced plastic material of the thread groove pump section (15).
    Type: Grant
    Filed: May 20, 2011
    Date of Patent: December 22, 2015
    Assignee: Edwards Japan Limited
    Inventor: Takashi Kabasawa
  • Patent number: 9057382
    Abstract: A fan impeller structure and a manufacturing method thereof. The fan impeller structure includes a hub and multiple securing sections. The hub has a top section, an annular section and multiple recesses. The annular section axially extends from a circumference of the top section. The annular section and the top section together define a receiving space. The recesses are formed at a junction between the top section and the annular section. The securing sections are disposed in the receiving space and formed oppositely between the recesses. The manufacturing method of the fan impeller structure enables the manufacturing process to be simplified. Moreover, by using the securing sections, magnetic members can be quickly connected with and secured to inner circumference of the hub to save working time.
    Type: Grant
    Filed: February 1, 2012
    Date of Patent: June 16, 2015
    Assignee: Asia Vital Components Co., Ltd.
    Inventor: Chu-Hsien Chou
  • 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: 20150125293
    Abstract: A turbofan engine (20; 300; 400) comprises a fan (28), a fan drive gear system (60), a fan shaft (120) coupling the fan drive gear system to the fan, a low spool, an intermediate spool, and a core spool. The low spool engages at least three main bearings of which at least two are non-thrust bearings and at least one is a thrust bearing. The fan shaft engages at least two bearings (148, 150). The core spool engages at least two bearings (250, 260). The intermediate spool engages at least two of said bearings (220, 200, 230; 220, 200, 230-2; 200, 220, 230-3).
    Type: Application
    Filed: March 13, 2014
    Publication date: May 7, 2015
    Applicant: United Technologies Corporation
    Inventors: William G. Sheridan, Frederick M. Schwarz
  • Publication number: 20150118044
    Abstract: An electronically-controlled turbocharger (ECT) includes a rotor (of an electric motor) on the shaft of the turbomachine. There are a variety of embodiments for securing the rotor onto the shaft including, but not limited to: having a taper on both the shaft on the rotor and using a nut engaging with threads in the shaft to put the two tapers together; a press fit; splines and grooves also using a nut; and a shoulder on the shaft that the rotor abuts when a nut is engaged with threads on the shaft. To accommodate these retaining features, the diameter of the shaft is greater near the turbine end of the shaft. A first bearing installed on the shaft near the turbine end of the shaft has a larger inside diameter than a second bearing installed on the other side of the rotor.
    Type: Application
    Filed: September 11, 2014
    Publication date: April 30, 2015
    Inventors: Will Robert Nielsen Hippen, Christopher Meszaros, Tyler Garrard
  • Patent number: 9004849
    Abstract: A gas turbine engine includes a bearing structure mounted to the front center body case structure to rotationally support a shaft driven by a geared architecture. A bearing compartment passage structure is in communication with the bearing structure through a front center body case structure.
    Type: Grant
    Filed: January 10, 2012
    Date of Patent: April 14, 2015
    Assignee: United Technologies Corporation
    Inventors: Peter M. Munsell, Philip S. Stripinis
  • Patent number: 9003793
    Abstract: A turbocharger assembly includes a compressor assembly, a turbine wheel, a shaft, a bearing assembly, and a cooling gas conduit. The compressor assembly includes a compressor impeller. The compressor impeller includes an outermost impeller edge and has a maximum cross-sectional dimension at the outermost impeller edge. The shaft interconnects the compressor impeller and the turbine wheel. The bearing assembly surrounds at least a portion of the shaft. The cooling gas conduit is disposed in fluid communication with the compressor assembly and the bearing assembly. At least a portion of the cooling gas conduit is disposed adjacent the outermost impeller edge such that the cooling gas conduit is configured to receive a portion of intake gases flowing along the outermost impeller edge and guide the portion of the intake gases toward the bearing assembly to cool the bearing assembly.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: April 14, 2015
    Assignee: GM Global Technology Operations LLC
    Inventors: Louis Begin, Brian J. Edwards, Carnell E. Williams
  • Patent number: 9004774
    Abstract: A ball bearing system for use with engine turbochargers dampens axial and radial thrust loads of a turbocharger and enhances performance and longevity. The system includes a bearing carrier with an aperture to house a shaft having a compressor wheel affixed to a first end of the shaft and a turbine wheel affixed to a second end of the shaft, the bearing carrier being able to house a plurality of bearings in contact with the shaft, an outer housing member connected to the shaft to enclose the bearing carrier, and a first O-ring and a second O-ring both disposed within grooves around the outer surface area of the bearing carrier, each O-ring also in contact with a corresponding groove in the interior of the outer housing member. The O-rings dampen the axial and radial loads of the rotating shaft of the turbocharger.
    Type: Grant
    Filed: April 8, 2014
    Date of Patent: April 14, 2015
    Inventor: Joseph S. Delgado
  • Patent number: 8998569
    Abstract: A gas turbine engine includes a gas turbine engine internal compartment structure having an integral passageway. Wiring is routed through the integral passageway of the gas turbine engine internal compartment structure.
    Type: Grant
    Filed: August 17, 2011
    Date of Patent: April 7, 2015
    Assignee: United Technologies Corporation
    Inventor: Russell B. Witlicki
  • 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
  • Patent number: 8985945
    Abstract: Provided is a uni-axial multi-stage radial gas expander which has a high degree of reliability and which can sufficiently cope with the conditions of a high pressure and a high pressure ratio. Two or more radial gas expander sections (11A, 11B) formed of two-or-more-stage impeller vanes (14a to 14h) arranged between bearings (21a, 21b) on a rotor shaft (13) consisting of a single shaft are housed in a signal casing (10).
    Type: Grant
    Filed: July 28, 2010
    Date of Patent: March 24, 2015
    Assignee: Mitsubishi Heavy Industries Compressor Corporation
    Inventors: Hideki Nagao, Yasushi Mori, Masahiro Kobayashi, Katsuya Yamashita, Hirotaka Higashimori, Katsuki Yagi
  • Patent number: 8979512
    Abstract: An oil-retaining bearing fan device includes a fan base seat, at least one oil-retaining bearing and at least one magnetic member. The oil-retaining bearing is disposed in a bearing hole of the fan base seat. The oil-retaining bearing has at least one receiving hole for receiving the magnetic member therein. The magnetic member serves to apply a magnetic attraction force to a shaft of the fan device to make the shaft quickly restore to its optimal operation position so as to reduce wear and lower the noises and vibration of the fan device in operation. Therefore, the lifetime of the fan device can be prolonged.
    Type: Grant
    Filed: December 5, 2011
    Date of Patent: March 17, 2015
    Assignee: Asia Vital Components (Chengdu) Co., Ltd.
    Inventors: Bor-Haw Chang, Shu-Fen Liu
  • 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
  • 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
  • Publication number: 20150056071
    Abstract: A bearing system for a turbocharger rotor assembly that includes an elongated bearing carrier with anti-friction bearings on each end carried in a stationary housing. The elongated bearing carrier is supported within the housing by axially spaced elastomeric bands in grooves in the outside diameter of the bearing carrier that cooperate with grooves in the bore of the stationary housing within which the elastomeric bands are seated to carry the axial thrust of the rotor assembly in both axial directions.
    Type: Application
    Filed: August 26, 2013
    Publication date: February 26, 2015
    Inventor: William E. Woollenweber
  • 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
  • Patent number: 8961128
    Abstract: An exemplary center housing rotating assembly includes a turbine wheel; a compressor wheel; a center housing (510) that includes a through bore (515), extending from a compressor end to a turbine end along a bore axis; a bearing assembly (530) positioned in the bore where the bearing assembly includes an outer race (532) that includes keyways (535, 535?) extending from an axial end, the keyways radially inset from an outer diameter of the outer race; and a plate (570) attached to the center housing where the plate includes extending keys (578, 578?), each of the keys (578, 578?) being received by a respective one of the keyways (535, 535?) to restrict rotation of the bearing assembly in the bore. Various other exemplary devices, systems, methods, etc., are also disclosed.
    Type: Grant
    Filed: August 26, 2009
    Date of Patent: February 24, 2015
    Assignee: Honeywell International Inc.
    Inventors: Peter E. Mavrosakis, George Adeff
  • Publication number: 20150047349
    Abstract: In an aluminum turbocharger bearing housing, there is a potential for wear of the bearing housing at the interface with the journal bearing system. With a protective hard anodized surface, the wear resistance and resistance to chemical attack of the bearing housing can be improved so that an aluminum bearing housing can have the life of a cast iron bearing housing, at greatly reduced weight.
    Type: Application
    Filed: April 9, 2013
    Publication date: February 19, 2015
    Inventors: John Palko, John Norton
  • Publication number: 20150016993
    Abstract: A drill powered pump is provided. The pump includes a housing, an impeller mounted within the housing and a pair of bushings that support opposite ends of the support shaft of the impeller. The bushings are carried by the housing. Anti-rotation arrangements are provided to prevent rotation of the bushings relative to the housing.
    Type: Application
    Filed: July 3, 2014
    Publication date: January 15, 2015
    Applicant: Nomis LLC
    Inventor: David Aaron Larson
  • Publication number: 20150016994
    Abstract: An aircraft engine including a fan having a center of mass, a low-pressure shaft that couples the fan directly to a low-pressure turbine of the aircraft engine, and a bearing arrangement for mounting the low-pressure shaft, where the bearing arrangement has at least two front bearings for mounting the low-pressure shaft, a first front bearing and a second front bearing, with the first front bearing being arranged in the axial direction in front of the second front bearing. It has been provided that the first front bearing is arranged substantially in the same plane, extending perpendicular to the longitudinal axis of the aircraft engine, as the center of mass of the fan.
    Type: Application
    Filed: July 9, 2014
    Publication date: January 15, 2015
    Inventor: Sascha BURGHARDT
  • Patent number: 8932011
    Abstract: A shaft assembly for a gas turbine engine that includes a shaft with a threaded shaft segment, an annular rotor disposed on the shaft, and annular stack nut. The stack nut includes a base nut segment and a clamping nut segment. The base nut segment includes a threaded nut bore that is mated with the threaded shaft segment. The clamping nut segment axially extends from the base nut segment to a load bearing surface. The clamping nut segment includes a radial thickness that decreases as the clamping nut segment extends from the load bearing surface towards the base nut segment. The load bearing surface exerts a force against the rotor securing the rotor to the shaft.
    Type: Grant
    Filed: October 6, 2011
    Date of Patent: January 13, 2015
    Assignee: United Technologies Corporation
    Inventors: Eric C. Mundell, Todd M. LaPierre, Marc J. Muldoon, Stephen J. Lyle
  • Patent number: 8927175
    Abstract: A pump has a shaft, an impeller arranged on the shaft, and a labyrinth seal which is arranged between stationary and moving parts of the pump. A plurality of blades are arranged on the rotor and a labyrinth seal extends at least between the shaft and a rear portion of the blades. A gap in the labyrinth seal is designed such that liquid water can be actively carried away, with the labyrinth seal for this purpose being designed at least in places with a channel in the form of a spiral and/or a staircase. The invention also relates to a fuel cell system having such a pump.
    Type: Grant
    Filed: July 23, 2008
    Date of Patent: January 6, 2015
    Assignee: Daimler AG
    Inventors: Oliver Harr, Andreas Knoop, Cosimo S. Mazzotta, Patrick L. Padgett, Hans-Joerg Schabel, Klaus Scherrbacher
  • Patent number: 8919133
    Abstract: A double-body gas turbine engine, including a low-pressure body LP and a high-pressure body HP, rotatably mounted about a single shaft in a stationary casing, the low-pressure body LP including a compressor and a turbine connected by a low-pressure shaft LP. The low-pressure shaft LP is supported by an upstream LP bearing, a first downstream LP bearing, and an additional downstream LP bearing by the stationary casing, the high-pressure body being supported by an upstream HP bearing and a downstream HP bearing which is an inter-shaft bearing including an inner track rigidly connected to the HP turbine rotor and an outer track rigidly connected to the LP shaft.
    Type: Grant
    Filed: April 15, 2010
    Date of Patent: December 30, 2014
    Assignee: Snecma
    Inventors: Jacques René Bart, Didler René André Escure, Ornella Gastineau
  • 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: 20140369831
    Abstract: A pump insert (50) for supporting a rotor (14) of a pump comprises an annular resilient support (52) for engaging the body (26) of the pump, the support (52) extending about a rolling bearing (10) having an inner race (12) for engaging the rotor (14), an axially preloaded outer race (16) fixed to the support (52), and a plurality of rolling elements (18) located between the races. During assembly, the rolling bearing (10) can be accurately positioned within the support (52) so that there is a very low tolerance stack-up when the insert (50) is fitted to the rotor (14). Consequently, the position of the rotor (14) will hardly change, if at all, when the rolling bearing (10) is replaced during servicing of the pump.
    Type: Application
    Filed: September 4, 2014
    Publication date: December 18, 2014
    Inventors: Barrie Dudley Brewster, Martin Ernst Tollner, Paul David Flower
  • Publication number: 20140369830
    Abstract: A bearing arrangement is disclosed. The bearing arrangement includes first and second bearings, with each bearing including a respective support element and a respective set of rolling elements and defining a respective load path extending through the respective support element and rolling elements. The support elements are coupled such that a load applied to either support element is transmitted through both the first and second load paths. The arrangement further includes a pair of superelastic titanium alloy elements located in the respective load paths to provide resilient movement between the bearings when a load is applied to the bearing arrangement.
    Type: Application
    Filed: May 29, 2014
    Publication date: December 18, 2014
    Applicant: ROLLS-ROYCE PLC
    Inventors: Paul FLETCHER, John Richard WEBSTER, Alan Robert MAGUIRE
  • Patent number: 8911203
    Abstract: A turbofan engine comprises an engine case. A gaspath extends through the engine case. A fan has a circumferential array of fan blades. A fan case encircles the fan blades radially outboard of the engine case. A plurality of fan case vanes extend aftward and outward from the engine case to the fan case. A forward frame comprises a plurality of vanes radially across the gaspath. A torque box couples the fan case vanes to the forward frame. A transmission couples a shaft to a fan shaft to drive the fan. A fan bearing assembly couples a stationary forward hub structure to the fan shaft.
    Type: Grant
    Filed: June 15, 2012
    Date of Patent: December 16, 2014
    Assignee: United Technologies Corporation
    Inventors: Gregory E. Reinhardt, Karl D. Blume, John P. Tirone, III, John C. Ditomasso, Enzo DiBenedetto, Jason W. Mazanec
  • 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
  • Patent number: 8905707
    Abstract: An air cycle machine has a housing which holds a compressor section, and a turbine section having an expansion area, and a fan section disposed outside of the housing. A shaft, which attaches to and is coaxial with the compressor section, the turbine section and the fan section, is supported by an air journal bearing and an air thrust bearing. The shaft has a hollow core for porting cooling air from the air journal bearing and the air thrust bearing, and a tube that extends into said expansion area and communicates cooling air from the turbine expansion area to the thrust bearing.
    Type: Grant
    Filed: December 21, 2010
    Date of Patent: December 9, 2014
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Darryl A. Colson, Seth E. Rosen, Eric Chrabascz
  • Patent number: 8894350
    Abstract: A centrifugal pump has a stationary diffuser with a bore. A thrust bearing is pressed into the diffuser bore and has a curved interior. A thrust runner having a curved exterior is correspondingly and closely received by the thrust bearing interior. The thrust runner is keyed to a shaft and transmits thrust from a rotating impeller to the diffuser via the thrust bearing. The curved surface of the thrust bearing allows for handling of both axial and radial thrust without the need for multiple thrust bearings. The increased surface area of the curved surface in the thrust bearing can also handle higher loads.
    Type: Grant
    Filed: November 2, 2010
    Date of Patent: November 25, 2014
    Assignee: Baker Hughes Incorporated
    Inventors: Christopher M. Brunner, David W. Chilcoat, Jason B. Ives
  • Publication number: 20140341732
    Abstract: A bearing housing (1) of an exhaust-gas turbocharger (2) having a turbine-side flange (3), having a compressor-side flange (4) and having a center part (5) which is arranged between the turbine-side flange (3) and the compressor-side flange (4). The turbine-side flange (3), the compressor-side flange (4) and the center part (5) are separate components which are connected to one another in the fully assembled state by a connection device (6) or thermally or by adhesive bonding.
    Type: Application
    Filed: November 28, 2012
    Publication date: November 20, 2014
    Inventor: Peter Friedrich
  • 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