For Shaft Sealing, Packing, Lubricating Or Bearing Means Patents (Class 415/111)
  • Patent number: 10577975
    Abstract: Embodiments of a stage for a turbomachine have been provided herein. In some embodiments, a stage for a turbomachine may include a bearing having a housing, the bearing defining an interior cavity; an outer ring disposed radially outward from the housing; and a plurality of airfoils disposed between the housing of the bearing and the outer ring.
    Type: Grant
    Filed: April 18, 2016
    Date of Patent: March 3, 2020
    Assignee: General Electric Company
    Inventors: Bugra Han Ertas, Jason Joseph Bellardi, Joshua Tyler Mook
  • Patent number: 10513948
    Abstract: A rotary machine includes a shaft extending through the rotary machine; a bearing positioned around the shaft; and an air deflector mounted on the shaft between the bearing and the shaft, wherein the air deflector has a first cylindrical body portion that is connected to a second cylindrical body portion with a ramp portion. A method for cooling a bearing positioned around a rotating shaft includes providing air to a cavity that surrounds a rotating shaft; deflecting the air towards an inner surface of a bearing that is positioned radially outward of the rotating shaft, wherein the air is deflected with an air deflector that is mounted on the rotating shaft; and flowing the air between an outer surface of the air deflector and the inner surface of the bearing.
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: December 24, 2019
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Craig M. Beers, Christopher McAuliffe, Murtuza Lokhandwalla
  • Patent number: 10508547
    Abstract: According to some embodiments, a tie-bolt support assembly is provided which includes a support spring for engagement with both the tie-bolt and a rotor assembly to maintain a load path between the tie-bolt and the rotor assembly while also allowing for axial movement of the tie-bolt.
    Type: Grant
    Filed: November 25, 2014
    Date of Patent: December 17, 2019
    Assignee: General Electric Company
    Inventors: Benjamin Vincent Rawe, Robert C. Von Der Esch, Jason Francis Pepi, David William Crall
  • Patent number: 10451084
    Abstract: An apparatus and method of cooling a hot portion of a gas turbine engine, such as a multi-stage compressor of a gas turbine engine, by reducing an operating air temperature in a space between a seal and a blade post of adjacent stages by routing cooling air through an inlet in the vane, passing the routed cooling air through the vane, and emitting the routed cooling air into the space.
    Type: Grant
    Filed: November 16, 2015
    Date of Patent: October 22, 2019
    Assignee: General Electric Company
    Inventors: Sesha Subramanian, Monty Lee Shelton, Robert Proctor, Mohamed Musthafa Thoppil, Venkateswararao Gurram, Josiah Warren Joiner, Wojciech Sak
  • Patent number: 10436445
    Abstract: An assembly for controlling a gap between a liner and a stationary nozzle within a gas turbine includes an annular liner having an aft frame that is disposed at an aft end of the liner, and a mounting bracket that is coupled to the aft frame. The assembly further includes a turbine having an outer turbine shell and an inner turbine shell that at least partially defines an inlet to the turbine. A stationary nozzle is disposed between the aft frame and the inlet. The stationary nozzle includes a top platform portion having a leading edge that extends towards the aft frame and a bottom platform portion. A gap is defined between the aft end of the aft frame and the leading edge of the top platform portion. The mounting bracket is coupled to the outer turbine shell, and stationary nozzle is coupled to the inner turbine shell.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: October 8, 2019
    Assignee: General Electric Company
    Inventors: Christopher Paul Willis, Richard Martin DiCintio, Patrick Benedict Melton, Lucas John Stoia
  • Patent number: 10400787
    Abstract: A sealing device is described, for separating a first compartment from a second compartment in a turbomachine, a wet gas being processed in the first compartment. The sealing device comprises a rotary component and a stationary component. A sealing member is arranged between the rotary component and the stationary component. The device further comprises an annular wet-particles collector and an oil-jet element, mounted on the rotary component for rotation therewith. The oil-jet element is surrounded by the annular wet-particles collector, such that wet particles contacting the oil-jet element are projected by centrifugal force into the annular wet-particles collector.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: September 3, 2019
    Assignee: Nuovo Pignone Srl
    Inventors: Matteo Bertoneri, Emanuele Rizzo, Mirco Tavernari
  • Patent number: 10371151
    Abstract: A self-priming, centrifugal pump comprising a first housing part having a front wall with an inlet, a second housing part having an outlet, an impeller rotatably arranged in the second housing part and a pump screw rotatably arranged in the first housing part, connected to the impeller and comprising a center body around which a helical blade is arranged for feeding the impeller with any gas that is present in the liquid, wherein the center body is arranged at a distance from a side of the front wall that faces the center body, such that a channel with a width of at least 12 mm is formed between the center body and the side of the front wall that faces the center body.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: August 6, 2019
    Assignee: ALFA CORPORATE AB
    Inventors: Poul Anton Daugaard, Jesper Raabjerg Jensen, Kenneth Rehhoff
  • Patent number: 10363349
    Abstract: A heart pump is disclosed herein. The heart pump can include a cannula having one or more outlets. An impeller can be positioned in the cannula. The impeller can be configured to pump blood through the outlets along a longitudinal axis when the impeller is rotated at an operational speed. The heart pump can be configured to adjust an effective area of the outlets while the impeller is rotating or to provide relative motion between the cannula and the impeller along the longitudinal axis while the impeller is rotating.
    Type: Grant
    Filed: April 15, 2015
    Date of Patent: July 30, 2019
    Assignee: TC1 LLP
    Inventors: Paul F. Muller, Keif M. Fitzgerald
  • Patent number: 10337773
    Abstract: A cooling system includes a refrigerant compressor and a first operating medium, which provides a mixture of refrigerant and lubrication oil. An oil separator reduces the percentage of the refrigerant in the operating medium to a value between 15% by weight and 50% by weight.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: July 2, 2019
    Assignee: Aktiebolaget SKF
    Inventors: Rudolf Hauleitner, Mario Kammerhuber, Guillermo Morales Espejel, Hans Wallin
  • Patent number: 10329938
    Abstract: Aspirating face seal between high and low pressure regions of turbomachine between rotatable and non-rotatable members of turbomachine includes gas bearing rotatable and non-rotatable face surfaces, starter tooth mounted on the rotatable member operable to sealingly engage abradable starter seal land on the non-rotatable member, and annular pocket in an abradable coating or other abradable material of starter seal land. Abradable material may be in radially inwardly facing groove extending into non-rotatable member. Pocket may extend radially outwardly from a cylindrical radially outer abradable surface to pocket bottom which includes thin abradable material layer groove surface along the non-rotatable member. Pocket may extend axially aftwardly from annular forward groove side surface into abradable coating. Pocket may be bounded axially by abradable material. Pocket may be tapered having taper decreasing axially aftwardly away from annular forward groove side surface.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: June 25, 2019
    Assignee: General Electric Company
    Inventors: Brian Joseph Prenger, John David Bibler, Mark Leonard Hopper
  • Patent number: 10309697
    Abstract: A cooling system includes a refrigerant compressor and a first operating medium, which provides a mixture of refrigerant and lubrication oil. An oil separator reduces the percentage of the refrigerant in the operating medium to a value between 15% by weight and 60% by weight.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: June 4, 2019
    Assignee: Aktiebolaget SKF
    Inventors: Rudolf Hauleitner, Mario Kammerhuber, Guillermo Morales Espejel, Hans Wallin
  • Patent number: 10295231
    Abstract: A cooling system includes a refrigerant compressor and a first operating medium, which provides a mixture of refrigerant and lubrication oil. An oil separator reduces the percentage of the refrigerant in the operating medium to a value between 25% by weight and 80% by weight.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: May 21, 2019
    Assignee: Aktiebolaget SKF
    Inventors: Rudolf Hauleitner, Mario Kammerhuber, Guillermo Morales Espejel, Hans Wallin
  • Patent number: 10295232
    Abstract: A cooling system includes a refrigerant compressor and a first operating medium, which includes a mixture of refrigerant and lubrication oil. An oil separator reduces the percentage of the refrigerant in the operating medium so that a second lubrication oil enriched operating medium is provided by the oil separator, the provided second operating medium having at least in a second operating state a viscosity ratio of ?>1.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: May 21, 2019
    Assignee: Aktiebolaget SKF
    Inventors: Rudolf Hauleitner, Mario Kammerhuber, Guillermo Morales Espejel, Hans Wallin
  • Patent number: 10284048
    Abstract: An electric motor is provided with an annular member supported by a cylindrical member of a front housing. The annular member includes an opposite part spaced from a surface of a ring member in a rotary shaft, which extends in the circumferential direction. The annular member includes first cover part opposed to first surface of the ring member, and second cover part opposed to second surface of the ring member. The first cover part and the second cover part are spaced from the ring member so that a pressure in a space sandwiched by the first cover part and the first surface is equalized with a pressure in a space sandwiched by the second cover part and the second surface.
    Type: Grant
    Filed: October 5, 2017
    Date of Patent: May 7, 2019
    Assignee: FANUC CORPORATION
    Inventor: Yohei Kamiya
  • Patent number: 10161408
    Abstract: What is described is a system for pumping lubricant to a component of a gas turbine engine. The system includes a fan gear coupled to a fan shaft of the gas turbine engine and configured to rotate in a forward direction and in a reverse direction based at least partially on a direction of wind relative to a fan of the gas turbine engine. The system also includes a first pump coupled to the fan gear and configured to pump lubricant to the component in response to the fan rotating in the forward direction. The system also includes a second pump coupled to the fan gear and configured to pump lubricant to the component in response to the fan rotating in the reverse direction.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: December 25, 2018
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Jacob Peter Mastro, Michael E. McCune
  • Patent number: 10151312
    Abstract: Pump units include a rotatably arranged rotor (3) that is driven by a drive shaft (2), wherein the drive shaft (2) has a first bearing section (18) facing towards the rotor (3), and a second bearing section (19) facing away from the rotor (3). The first bearing section (18) is a first sliding bearing (20), and the second bearing section (19) is a second sliding bearing (21). The load-bearing capacity of the first sliding bearing (20) is limited by a predetermined working pressure in the pump unit. In the pump unit according to the invention, the load-bearing capacity of the sliding bearing (20) facing towards the rotor (3) is increased. According to the invention, the diameter of the first bearing section (18) of the drive shaft (2) and the first sliding bearing (20) is larger than the diameter of the second bearing section (19) and the second sliding bearing (21).
    Type: Grant
    Filed: July 22, 2015
    Date of Patent: December 11, 2018
    Assignee: Robert Bosch GmbH
    Inventors: Evgenij Skrynski, Marian Kacmar, Martin Kling, Oliver Laforsch, Sando Kunath
  • Patent number: 10113480
    Abstract: The invention relates to a trunnion (23) for a high-pressure turbine (11), to be arranged between a shaft of a low-pressure turbine (9) and an inner surface (34) of a seal mounting (26) of the low-pressure turbine (8), the trunnion (23) being characterized in that it includes a drop-launching extension (32) arranged such as to extend opposite a flared portion (33) of the inner surface (34) of the seal mounting (26), such that when the trunnion (23) is rotated about the shaft of the low-pressure turbine (9), oil (H2), which tends to penetrate between the trunnion (23) and the seal mounting (26), is thrown by centrifugal effect from the drop-launching extension (32) toward the flared portion (33) of the inner surface (34) of the seal mounting (26).
    Type: Grant
    Filed: June 11, 2014
    Date of Patent: October 30, 2018
    Assignee: SAFRAN AIRCRAFT ENGINES
    Inventors: Maurice Guy Judet, Laurent Jacques Michel Coulombeau, Fabrice Garin
  • Patent number: 10087780
    Abstract: An assembly for a turbocharger can include a shaft and turbine wheel assembly and a component that has a rotational axis and that includes a through bore for receipt of the component by the shaft of the shaft and turbine wheel assembly where the component includes an inner surface and an outer surface and one or more passages that extend between the inner surface and the outer surface, where the one or more passages are shaped to exert force on the component responsive to flow of fluid in the one or more passages and where the force rotates the component about the rotational axis. Various other examples of devices, assemblies, systems, methods, etc., are also disclosed.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: October 2, 2018
    Assignee: Honeywell International Inc.
    Inventors: Poomkuzhimannil Zachariah John, Suryakant Gupta, Parikshit I Mulani, Maltesh Kolur, Giorgio Figura
  • Patent number: 10087849
    Abstract: A gear system for a gas turbine engine includes a carrier that includes a first axial face. A plurality of gears are located in the carrier. An opening in the first axial face of the carrier is aligned with one of the plurality of gears. A housing includes a central cavity and is attached to the first axial face of the carrier. The housing includes an energy dissipating member.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: October 2, 2018
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Todd M. Currier, Brian P. Cigal
  • Patent number: 10018046
    Abstract: A steam turbine 10 of an embodiment includes a turbine rotor 30, rotor blade cascades 41 having rotor blades 40, stationary blade cascades 53 having stationary blades 52, and a steam passage 60 formed on a turbine stage, among turbine stages, including the rotor blades each having a blade height equal to or more than a blade height at which a loss generated when a leakage steam flown between a diaphragm inner ring 51 and the turbine rotor 30 jets into a main steam and a benefit brought by increasing the blade height of each of the rotor blades 40 in accordance with an increase in a flow rate of the main steam by an amount of the leakage steam are cancelled, and leading the leakage steam from an upstream side to a downstream side of a rotor disk 31.
    Type: Grant
    Filed: February 27, 2014
    Date of Patent: July 10, 2018
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Daisuke Nomura, Akihiro Onoda, Junichi Tominaga, Shinichiro Ohashi
  • Patent number: 9995383
    Abstract: A hydraulic system of vehicle transmission device is provided. A heat exchanger configured downstream is used to cool working oil discharged from a torque converter, and the working oil is supplied, as lubricating oil, to a lubricating system hydraulic circuit. On the other hand, excess oil flowing out of a regulator valve for regulating line pressure returns to an input side of an oil pump through a recycle oil path. A bypass oil path is disposed in a manner of branching from the recycle oil path and connecting to an input side of the heat exchanger. A control mechanism is disposed, and when hydraulic pressure at the side of the recycle oil path is higher than that at the side of the heat exchanger, the bypass oil path is opened to guide oil at the side of the recycle oil path to the input side of the heat exchanger.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: June 12, 2018
    Assignee: Honda Motor Co., Ltd.
    Inventors: Noriyuki Yagi, Yoshinori Tanaka
  • Patent number: 9976420
    Abstract: An aspirating seal assembly for use in a turbine engine is provided. The aspirating seal assembly includes a face seal and a rotary component. The face seal includes a first annular seal surface, and the rotary component includes a second annular seal surface positioned adjacent the first annular seal surface and defining a seal interface therebetween. The face seal is configured to discharge a flow of air towards the seal interface. The seal assembly also includes a first seal member extending between the first and second annular seal surfaces such that the flow of air induces a back pressure across the seal interface, and a second seal member positioned radially inward from the first seal member and extending between the first and second annular seal surfaces. A length of the second seal member is selected to increase the back pressure induced across the seal interface.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: May 22, 2018
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Quang Tue Nguyen Tran, Rodrigo Rodriguez Erdmenger, Christopher Jon Potokar
  • Patent number: 9926941
    Abstract: An assembly can include a compressor backplate; a bearing boss that extends axially from the compressor backplate and that includes an outer surface and male coupling features disposed along the outer surface; and a casing that includes a compressor end, a bearing boss opening at the compressor end, a turbine end, an inner surface located between the compressor end and the turbine end and female coupling features disposed along a portion of the inner surface, the male coupling features and the female coupling features configured to couple the bearing boss to the casing. Various other examples of devices, assemblies, systems, methods, etc., are also disclosed.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: March 27, 2018
    Assignee: Honeywell International Inc.
    Inventors: Santosh V, Suryakant Gupta, Parikshit I Mulani, Poomkuzhimannil Zachariah John, Sunil Dayalan, Maltesh Kolur, Prithivi Karthikeyan, Chris Groves, Peter Davies, Mark Groskreutz
  • Patent number: 9909450
    Abstract: Bearing members, such as journal bearings, and turbine assemblies for use in high speed, high horsepower applications (e.g., turbochargers, jet engines, internal combustion engines, blowers, steam turbines, compressors, and pumps) including a rotatable shaft, a compressor wheel coupled to the shaft (e.g., at one end), a turbine wheel spaced from the compressor wheel, the turbine wheel also being coupled to the shaft (e.g., at another end), and at least one bearing member having a superhard bearing surface.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: March 6, 2018
    Assignee: US SYNTHETIC CORPORATION
    Inventor: Jarrett Meier
  • Patent number: 9909452
    Abstract: A device for sealing the coaxial shafts of a turbomachine includes an annular seal able to perform sealing by contact with the outer shaft, and a lubricating device to lubricate the region of contact between the annular seal and the outer shaft.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: March 6, 2018
    Assignee: SNECMA
    Inventors: Arnaud Jean-Marie Pierrot, Serge Rene Morreale
  • Patent number: 9835054
    Abstract: An exhaust gas turbocharger may include a shaft mounted in a bearing housing carrying a compressor wheel and a turbine wheel. The shaft may include a sealing bush arranged on the shaft in a rotationally fixed manner. The sealing bush together with a bearing housing cover may at least partially delimit an annular oil centrifuging space arranged coaxially to the sealing bush. The bearing housing cover may include a guiding nib located radially outside the sealing bush partially covering the sealing bush in axial direction. The guiding nib may be configured to guide oil separated in the oil centrifuging space onto the rotating sealing bush. The rotating sealing bush may be configured to direct the oil into the oil centrifuging space in response to centrifugal force creating an oil swirl.
    Type: Grant
    Filed: February 20, 2014
    Date of Patent: December 5, 2017
    Assignee: Bosch Mahle Turbo Systems GmBH & Co. KG
    Inventors: Friedemann Weber, Thomas Berger, Thanh-Hung Nguyen-Schaefer, Christoph Butscher, Jasmin Hausser, Andreas Fath
  • Patent number: 9777587
    Abstract: A sealing device for a turbine has a sealing member provided in a gap between a rotor and a stator arranged to surround the rotor, and a fluid path provided within the stator, to introduce, into the stator, a cooling medium used to cool stationary blades extending radially inward from the stator, and to flow the cooling medium at least to an upstream side of the sealing member.
    Type: Grant
    Filed: March 4, 2013
    Date of Patent: October 3, 2017
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yuki Mimura, Akihiro Onoda, Tomohiko Tsukuda, Naoki Shibukawa, Toshio Hirano, Iwataro Sato, Kazutaka Tsuruta
  • Patent number: 9739311
    Abstract: A shaft includes: two large-diameter portions; and a small-diameter portion formed between the two large-diameter portions. A bearing includes: an annular body in which to insert the shaft; two bearing surfaces being opposite the large-diameter portions; and an intervening surface located between the two bearing surfaces on an inner circumferential surface of the body, and being opposite the small-diameter portion with a clearance formed between the intervening surface and the small-diameter portion. No anti-corrosion treatment is applied to the large-diameter portions. An anti-corrosion treatment is applied to at least any one of: an exposed portion of an outer peripheral surface of the body of the bearing, which is exposed to the outside of the housing; the intervening surface of the bearing; an opposite end surface of the bearing; and the small-diameter portion of the shaft.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: August 22, 2017
    Assignee: IHI Corporation
    Inventors: Kuniaki Iizuka, Toshihiko Kitazawa, Masatoshi Eguchi, Yasushi Asada, Osamu Kagimoto, Kenji Ishikawa, Masashige Takahashi, Yohei Suruga, Suguru Katayama, Asako Yasui
  • Patent number: 9739151
    Abstract: A blade for a turbomachine is disclosed. At least one cooling channel is configured in the blade neck, whose inlet is disposed near a platform projection on the high-pressure side and whose outlet is disposed in the region of a platform projection on the low-pressure side. An integrally bladed rotor base body having a plurality of these types of blades as well as turbomachine with such a rotor base body is also disclosed.
    Type: Grant
    Filed: May 1, 2012
    Date of Patent: August 22, 2017
    Assignee: MTU Aero Engines GmbH
    Inventor: Frank Stiehler
  • Patent number: 9709094
    Abstract: A shaft includes: two large-diameter portions; and a small-diameter portion formed between the two large-diameter portions. A bearing includes: an annular body in which to insert the shaft; two bearing surfaces being opposite the large-diameter portions; and an intervening surface located between the two bearing surfaces on an inner circumferential surface of the body, and being opposite the small-diameter portion with a clearance formed between the intervening surface and the small-diameter portion. No anti-corrosion treatment is applied to the large-diameter portions. An anti-corrosion treatment is applied to at least any one of: an exposed portion of an outer peripheral surface of the body of the bearing, which is exposed to the outside of the housing; the intervening surface of the bearing; an opposite end surface of the bearing; and the small-diameter portion of the shaft.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: July 18, 2017
    Assignee: IHI Corporation
    Inventors: Kuniaki Iizuka, Toshihiko Kitazawa, Masatoshi Eguchi, Yasushi Asada, Osamu Kagimoto, Kenji Ishikawa, Masashige Takahashi, Yohei Suruga, Suguru Katayama, Asako Yasui
  • Patent number: 9695709
    Abstract: In accordance with an embodiment, a gas turbine engine is provided having a bearing chamber leak detection system. The gas turbine engine includes a rotatable shaft, a bearing assembly supporting the rotatable shaft, and a plurality of bearing chamber seals surrounding the rotatable shaft creating an annular bearing chamber enclosing the bearing assembly. One or more walls substantially surrounding the bearing chamber create a plenum between the walls and the bearing chamber, and a pressurized air inlet to the plenum is provided. The pressurized air inlet includes an airflow sensor configured and positioned to sense a flow of pressurized air into the plenum, such that airflow at the sensor is indicative of airflow from the plenum into the bearing chamber via one or more of the plurality of bearing chamber seals.
    Type: Grant
    Filed: April 19, 2012
    Date of Patent: July 4, 2017
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Francis Parnin, Armando Amador
  • Patent number: 9677612
    Abstract: Improved fluid supply grooves in the face of an axial thrust bearing for a crankshaft are disclosed. The grooves have a larger cross-sectional area at the outer radius of the bearing body than at the inner radius of the bearing body.
    Type: Grant
    Filed: May 20, 2015
    Date of Patent: June 13, 2017
    Assignee: Cummins Inc.
    Inventors: Richard Gustafson, April Perry
  • Patent number: 9631633
    Abstract: A rotor structure for a centrifugal flow machine includes working vanes attached to the hub of the rotor without any support disc or shroud. Additionally, the vane has a device for efficiently flushing the sealing chamber behind the rotor.
    Type: Grant
    Filed: June 16, 2014
    Date of Patent: April 25, 2017
    Assignee: SULZER MANAGEMENT AG
    Inventor: Heikki Manninen
  • Patent number: 9587641
    Abstract: A pump assembly includes a centrifugal pump having an intake, a discharge, a pump chamber and an impeller to deliver water from the intake to the discharge. A priming system is fluidly coupled to the pump chamber. A drive assembly includes a drive shaft coupled to the priming system and positioned around an impeller shaft coupled to the impeller for selective rotatable coupling of the impeller shaft and the drive shaft.
    Type: Grant
    Filed: April 11, 2013
    Date of Patent: March 7, 2017
    Assignee: Waterous Company
    Inventors: Thomas Joseph Mettler, Mark Francis Haider, Henry Yinwah Tsang, Brian Jacob Johnson, Jason Adam Smith, Robert Allen Johnson
  • Patent number: 9574459
    Abstract: A gas turbine engine includes a fan, a compressor section, a combustor, and a turbine section. The engine also includes a rotating element and at least one bearing compartment including a bearing for supporting the rotating element, a seal for resisting leakage of lubricant outwardly of the bearing compartment and for allowing pressurized air to flow from a chamber adjacent the seal into the bearing compartment. A method and section for a gas turbine engine are also disclosed.
    Type: Grant
    Filed: April 2, 2014
    Date of Patent: February 21, 2017
    Assignee: United Technologies Corporation
    Inventors: M. Rifat Ullah, Robert E. Peters
  • Patent number: 9556877
    Abstract: A pump for conveying a pump fluid, wherein the pump fluid provided at an inlet pressure at a low pressure side of the pump can be conveyed in the operating state to a high pressure side of the pump rotor by means of a pump rotor rotatably supported about an axis of rotation in a pump stator and wherein a rotor shaft is arranged with the pump rotor at it drive bearing formed as a shaft bearing, characterized in that a lubricating film which is formed from a lubricating fluid formed from the pump fluid can be formed on a drive side of the rotor shaft between the rotor shaft and a drive bearing in a lubricating ring gap, with a lubricant line being provided such that the lubricating fluid can be supplied to the lubricating ring gap between the rotor shaft and the drive bearing.
    Type: Grant
    Filed: May 22, 2013
    Date of Patent: January 31, 2017
    Assignee: Sulzer Management AG
    Inventors: Paul Meuter, Thomas Welschinger
  • Patent number: 9416674
    Abstract: A floating air riding seal for a gas turbine engine with a rotor and a stator, an annular piston chamber with an axial moveable annular piston assembly within the annular piston chamber formed in the stator, an annular cavity formed on the annular piston assembly that faces a seal surface on the rotor, where the axial moveable annular piston includes an inlet scoop on a side opposite to the annular cavity that scoops up the swirling cooling air and directs the cooling air to the annular cavity to form an air cushion with the seal surface of the rotor.
    Type: Grant
    Filed: October 29, 2013
    Date of Patent: August 16, 2016
    Assignee: S&J DESIGN LLC
    Inventor: Todd A Ebert
  • Patent number: 9279341
    Abstract: A mid-turbine frame is disposed between high and low pressure turbine assemblies. A secondary air system is defined in the mid-turbine frame (MTF) to provide cooling to the turbine section of the engine. The secondary air system may be used to cool and pressurize seals to assist with oil retention in bearing cavities. The temperature gain of the secondary air may be reduced by flowing the secondary air through one or more external lines and then generally radially inwardly through air passages defined in the MTF.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: March 8, 2016
    Assignee: PRATT & WHITNEY CANADA CORP.
    Inventors: Eric Durocher, Pierre-Yves Legare, Alessandro Ciampa
  • Patent number: 9255606
    Abstract: A slide bearing device and a compressor are capable of stably achieving a low friction condition from the early stage of the start of friction. The slide bearing device includes a bearing, a shaft supported by the bearing while being subjected to sliding, and a gas supply section for supplying a dry gas to a bearing slide section where the bearing and the shaft slide against each other. A slide surface of the bearing is formed of a resin composite material, which is a mixture of a carbon material and a resin. The shaft is made of a metal and includes a groove formed on a slide surface of the shaft, the groove extending in a direction different from the sliding direction. Plural grooves may be provided and the grooves may extend in arbitrary directions. The shaft may include a collection of plural recesses on the slide surface thereof.
    Type: Grant
    Filed: December 10, 2009
    Date of Patent: February 9, 2016
    Assignee: Hitachi, Ltd.
    Inventors: Tomonaga Oyamada, Masahiko Ono
  • Patent number: 9234593
    Abstract: The present invention refers to a premounted mechanical seal unit, particularly for a fire extinguishing pump, with a rotating seal ring a stationary seal ring, the rotating seal ring and the stationary seal ring defining a seal gap thereinbetween, an inner sleeve which is connected to the rotating seal ring, an outer sleeve which is connected to the stationary seal ring, and a securing element which secures the outer sleeve to the inner sleeve. The inner sleeve and the outer sleeve in axial direction each have a length greater than a sum of the axial lengths of the rotating seal ring. The inner sleeve has a first form closure device on a first axial end and a second form closure device on a second axial end.
    Type: Grant
    Filed: December 9, 2010
    Date of Patent: January 12, 2016
    Assignee: EagleBurgmann Germany GmbH & Co. KG
    Inventors: Thomas Holzapfel, Wolfgang Ries, Reinhard Svejkovsky
  • Patent number: 9133853
    Abstract: Apparatus is provided featuring a bearing cartridge in combination with a pedestal. The bearing cartridge may be configured to be coupled to a pumping assembly combination and having a predetermined centerline. The pedestal may be configured with an axial channel to receive and support the bearing cartridge and allow the bearing cartridge to slide therein. The bearing cartridge and the pedestal are configured to couple together substantially at or above the centerline of the bearing cartridge in order to reduce center height requirements of the apparatus, where the center height is defined as the distance between the centerline of the bearing cartridge and the bottom surface of the pedestal supporting the bearing cartridge. The apparatus takes the form of a pump or pumping assembly, arrangement or combination, including a slurry-type pump or a centrifugal pump.
    Type: Grant
    Filed: July 21, 2011
    Date of Patent: September 15, 2015
    Inventors: Mark Alan Davis, Timothy Martin Falkiewicz, Mark Alexander Playford
  • Publication number: 20150125264
    Abstract: A lubrication system for a gas turbine engine is disclosed. The lubrication system is configured to provide pressurized air and lubricant to a bearing sump of the gas turbine engine to cool and lubricate a bearing included in the bearing sump.
    Type: Application
    Filed: March 13, 2014
    Publication date: May 7, 2015
    Inventors: Kerry J. Lighty, Larry A. Junod
  • Publication number: 20150118018
    Abstract: A seal gas delivery system for an end seal on a turbo machine rotor shaft includes a seal gas passageway for delivering a seal gas to the end seal and a seal gas distributor for receiving at least a portion of the seal gas from the seal gas passageway, the seal gas distributor having a plurality of holes for distributing the seal gas about the rotor shaft during turbo machine standstill; the holes are located on a cylindrical surface and are typically arranged all around said rotor shaft, preferably regularly all around said rotor shaft.
    Type: Application
    Filed: April 25, 2013
    Publication date: April 30, 2015
    Inventors: Leonardo Baldassarre, Andrea Bernocchi
  • Publication number: 20150110600
    Abstract: An exhaust-gas turbocharger (1) with a bearing housing (2), a shaft (3) mounted in the bearing housing (2), a compressor wheel (5) arranged on the shaft (3) and a turbine wheel (4) arranged on the shaft (3), a housing component (7) which surrounds the compressor wheel (5) or the turbine wheel (4), and a sealing ring (14) between the bearing housing (2) and the housing component (7), wherein the sealing ring (14) is, in order to impart its sealing action, compressed in a direction perpendicular to the shaft (3).
    Type: Application
    Filed: May 16, 2013
    Publication date: April 23, 2015
    Inventors: Sebastian Mack, Johannes Hornbach, Sven Liebl
  • Publication number: 20150098799
    Abstract: A component support of the turbomachine, in particular an aircraft engine, is described, which includes at least two essentially annular components on the stator side, which are in axial contact with each other and are preferably oriented coaxially to the machine axis, the first component having a plurality of radial, groove-like recesses, which are laterally overlapped by the second component with its projection-like bearing sections, and an uncontoured support ring surface section being provided between the adjacent bearing sections, a turbomachine also being described.
    Type: Application
    Filed: October 7, 2014
    Publication date: April 9, 2015
    Inventors: Rudolf Stanka, Christoph Lauer, Hans Stricker
  • Publication number: 20150098798
    Abstract: A brush seal system for sealing a gap between components of a thermal gas turbine that may be moved relative to one another includes a gas seal housing that receives at least one brush head of a brush seal and a support element by means of which a brush packet projecting from the brush head of the brush seal may be supported against flexing. The support element and the brush seal housing are embodied as separate components. The invention furthermore relates to a method for producing such a brush seal system and to a thermal gas turbine having such a brush seal system.
    Type: Application
    Filed: October 7, 2014
    Publication date: April 9, 2015
    Inventors: STEPHAN KLAN, FRANK STIEHLER, JULIAN WEBER, MARKUS SCHLEMMER, STEPHAN PROSTLER
  • Publication number: 20150098793
    Abstract: A turbine-pump system adapted for use with well liquid that is displaceable within a well conduit. The turbine-pump system may include a bowl assembly; and a bowl support device fixedly attachable to the bowl assembly and selectively engageable with the well conduit for holding a portion of the bowl assembly in substantially axially, radially and rotationally fixed relationship with the well conduit.
    Type: Application
    Filed: September 25, 2014
    Publication date: April 9, 2015
    Inventor: Henry A. Baski
  • Publication number: 20150098800
    Abstract: A system can include a shaft and turbine wheel assembly that includes a seal portion; a bearing assembly that includes an outer race and rolling elements that rotatably support the shaft and turbine wheel assembly; a sleeve that includes an outer diameter and a through bore that includes a first inner diameter that accommodates an outer diameter of the outer race of the bearing assembly and a second, smaller inner diameter that accommodates an outer diameter of the seal portion of the shaft and turbine wheel assembly; and a center housing that includes a compressor side, a turbine side and a bore that includes a turbine side bore diameter that accommodates the outer diameter of the sleeve.
    Type: Application
    Filed: December 14, 2014
    Publication date: April 9, 2015
    Inventors: Ryan Matthew Kocher, Corazon Maynigo, Glenn F. Thompson
  • Publication number: 20150098797
    Abstract: A rotary shaft device (3) includes a shaft body (20) rotatably supported by angular bearings (35, 36), and a support body (40) configured to rotatably support the shaft body (20) via the angular bearings (35, 36). A ball rolling groove (21) having a Gothic arch shape in which rolling elements (39) of the angular bearings (35, 36) roll is formed in an outer circumferential surface of the shaft body (20).
    Type: Application
    Filed: April 10, 2013
    Publication date: April 9, 2015
    Applicant: THK CO., LTD.
    Inventors: Yuji Shirakawa, Yuki Hayashi
  • Publication number: 20150089959
    Abstract: A gas turbine engine includes a core housing that has an inlet case and an intermediate case that respectively provide an inlet case flow path and an intermediate case flow path. The shaft supports a compressor section that is arranged axially between the inlet case flow path and the intermediate case flow path. A geared architecture is coupled to the shaft, and a fan coupled to and rotationally driven by the geared architecture. The geared architecture includes a sun gear supported on the second end. A first bearing supports the shaft relative to the intermediate case and a second bearing supporting the shaft relative to the inlet case. The second bearing is arranged radially outward from the shaft.
    Type: Application
    Filed: December 15, 2014
    Publication date: April 2, 2015
    Inventors: Brian D. Merry, Gabriel L. Suciu