Bearing, Seal, Or Liner Between Runner Portion And Static Part Patents (Class 415/170.1)
  • Publication number: 20150098805
    Abstract: A seal assembly of an air cycle machine includes a seal plate with an outer diameter. A bore extends axially through a center of the seal plate and a seal land is disposed at least partially within the bore. The seal land includes an inner diameter and a minimum ratio between the inner diameter of the seal land and the outer diameter of the seal plate is approximately 0.1985.
    Type: Application
    Filed: October 9, 2013
    Publication date: April 9, 2015
    Applicant: Hamilton Sundstrand Corporation
    Inventors: Craig M. Beers, Christopher McAuliffe
  • 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: 8991176
    Abstract: A turbocharger for an internal combustion engine includes a shaft, a first turbine wheel, a compressor wheel, and a second turbine wheel. The shaft includes a first end and a second end and is supported for rotation about an axis. The first turbine wheel is mounted on the shaft proximate to the first end and configured to be rotated about the axis by post-combustion gasses emitted by the engine. The compressor wheel is mounted on the shaft between the first and second ends and configured to pressurize an airflow being received from the ambient for delivery to the engine. The second turbine wheel is mounted on the shaft proximate to the second end and configured to be rotated about the axis by a pressurized fluid. An internal combustion engine employing such a turbocharger is also disclosed.
    Type: Grant
    Filed: March 28, 2012
    Date of Patent: March 31, 2015
    Assignee: GM Global Technology Operations LLC
    Inventors: Louis P. Begin, Carnell E. Williams
  • Publication number: 20150050130
    Abstract: A sealing device between two axisymmetric coaxial parts, includes an elastic segment, two holding elements located on each side of the annular segment, an annular spacer arranged between the two holding elements, wherein the annular spacer has a notch around its peripheral rim; the annular elastic segment has a hooking element at each of its free ends, adapted to cooperate with the notch of the annular spacer, and to hold the elastic segment in a pre-holding position by elastic return force.
    Type: Application
    Filed: January 7, 2013
    Publication date: February 19, 2015
    Inventors: Serge René Morreale, Arnaud Jean-Marie Pierrot
  • Publication number: 20150023780
    Abstract: A gas turbine engine includes a liner disposed around a flowpath. The liner has a forward end, a radially outer surface, and a radially inner surface. A hole extends axially into the forward end of the liner between the radially outer surface and the radially inner surface, and an engagement member is partially disposed in the hole and extends axially forward from the forward end of the liner.
    Type: Application
    Filed: July 2, 2014
    Publication date: January 22, 2015
    Inventors: Mark W. Costa, Thomas J. Robertson, JR., David A. Welch
  • Publication number: 20150010392
    Abstract: A water pump apparatus is provided having a plurality of modular components, which allows for construction of various configurations of the water pump apparatus depending on specific vehicle requirements. The water pump apparatus modular components include a pump housing with a fluid chamber formed therein, a bearing housing for attachment to the pump housing, and a thermostat housing for connecting to the bearing housing and the pump housing. A method for forming modular components for assembling a water pump apparatus for use in an internal combustion engine is also provided.
    Type: Application
    Filed: January 18, 2012
    Publication date: January 8, 2015
    Applicant: International Engine Intellectual Property Company LLC
    Inventors: Ivan M. Lazich, Bienvenido L. Yadao, JR.
  • Publication number: 20150003957
    Abstract: A turbine assembly for a turbocharger can include a C-shaped seal that includes an inner diameter, an outer diameter, an axis aligned parallel to a rotational axis of a turbine wheel, a lower lip that contacts a lower axial face of an outer surface of a shroud component along an annular portion of the shroud component, an upper lip that contacts a lower axial face of an inner surface of a turbine housing, and a wall portion that extends between the lower lip and the upper lip. Various other examples of devices, assemblies, systems, methods, etc., are also disclosed.
    Type: Application
    Filed: June 26, 2013
    Publication date: January 1, 2015
    Inventors: Arnaud Gerard, Shankar Pandurangasa Solanki, Nicolas Morand, Sylvain Mulot, Vincent Eumont, Francis Abel, Stephane Sibille
  • Publication number: 20140377057
    Abstract: A sealing device in which coming off from the housing is suppressed with a simple structure even when the housing is made of resin. A case 110 is characterized in that it has a cylindrical portion 111 to be fitted into the inner circumferential surface of a small diameter portion 31, a flange portion 112 extending to the outer circumferential side from an end of the cylindrical portion 111 and abutting against a step surface 32 between the small diameter portion 31 and a large diameter portion 33 so that the sealing device 100 is positioned, and a tab portion 113 configured such that it inclines to the outer circumferential side as it extends from the end of the flange portion 112 in the axial direction away from the cylindrical portion 111.
    Type: Application
    Filed: April 1, 2013
    Publication date: December 25, 2014
    Applicant: EAGLE INDUSTRY CO., LTD.,
    Inventor: Koichiro Oiyama
  • Publication number: 20140369819
    Abstract: In a method for manufacturing an anti-rotation ring of a scroll type compressor, wherein the anti-rotation ring is provided in an anti-rotation mechanism for preventing a movable scroll from rotation on its own axis and made of a metal, the steps of the method include drawing a steel plate into a first intermediate body having a bottomed cylindrical shape, punching the bottom of the first intermediate body thereby to make a second intermediate body and ring forming the second intermediate body.
    Type: Application
    Filed: June 6, 2014
    Publication date: December 18, 2014
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Takuro YAMASHITA, Ken SUITOU, Hiroyuki GENNAMI
  • Publication number: 20140369820
    Abstract: An exhaust-gas turbocharger (1) comprising a compressor (2); a turbine (3); and a bearing housing (4), in which there is arranged a bearing cartridge (5), secured against axial displacement and twisting; and a single fixing element (6) securing the bearing cartridge (5) both against axial displacement and also twisting in the bearing housing (4). Also a method for assembling a bearing cartridge (5) in a bearing housing (4) of an exhaust-gas turbocharger (1).
    Type: Application
    Filed: January 22, 2013
    Publication date: December 18, 2014
    Applicant: BorgWarner Inc.
    Inventor: Silvio Koch
  • Publication number: 20140356145
    Abstract: Embodiments of the present disclosure are directed towards a seal assembly including a first seal and a second seal, wherein the first seal and the second seal axially abut one another within a retaining bore of a compressor, and cooperatively form an outer radial contour of the seal assembly that is retained by the retaining bore.
    Type: Application
    Filed: May 30, 2013
    Publication date: December 4, 2014
    Inventors: Thomas Edward Gerber, Jonathan David Clemons
  • Publication number: 20140356141
    Abstract: A gas turbine engine includes a bearing. A bearing support includes a first wall that extends between the first and second ends and is operatively supported by the bearing at a first end. An engine case is secured to the second end radially outward of the first end. A flexible support is provided by a second wall integral with and extending transversely from the first wall. The second wall has a first flange and a gear train component is secured to the first flange.
    Type: Application
    Filed: August 15, 2014
    Publication date: December 4, 2014
    Inventor: Todd A. Davis
  • Publication number: 20140356140
    Abstract: Embodiments of the present disclosure are directed towards an annular bearing retainer ring comprising a first axial surface, wherein the first axial surface is planar, and a second axial surface, wherein the second axial surface is non-planar.
    Type: Application
    Filed: May 30, 2013
    Publication date: December 4, 2014
    Inventors: Noel D. Blair, JR., Thomas Edward Gerber
  • Publication number: 20140348643
    Abstract: To impede soot leakage around a shaft which extends through a bore connecting volumes of differing pressures, e.g., a turbocharger turbine housing and the ambient air, a soot seal is provided to capture particulate matter while allowing the passage of gas.
    Type: Application
    Filed: September 6, 2012
    Publication date: November 27, 2014
    Applicant: BORGWARNER INC.
    Inventor: Timothy House
  • Publication number: 20140348642
    Abstract: A device including a conjoined laminate interface seal shaped for reducing inter-seal gap (e.g., an angled gap, an ‘L’-shaped gap, etc.) leakage in gas turbines is disclosed. In one embodiment, a seal device for a gas turbine includes: a first flange shaped to be disposed within a first slot of a first arcuate component and a first adjacent slot of a second arcuate component; a conjoined layer connected to a first surface of the first flange, the first surface configured to face a working fluid flow of the gas turbine; and a second flange shaped to be disposed within a second slot of the first arcuate component and a second adjacent slot of the second arcuate component, the second flange including a second surface connected to the conjoined layer.
    Type: Application
    Filed: May 2, 2013
    Publication date: November 27, 2014
    Applicant: General Electric Company
    Inventor: General Electric Company
  • Publication number: 20140341720
    Abstract: Systems and devices configured to seal interfaces/gaps between stationary components of turbines and manipulate a flow of coolant about portions of the turbine during turbine operation are disclosed. In one embodiment, a seal element includes: a first surface shaped to be oriented toward a pressurized cavity of the turbine; a second surface oriented substantially opposite the first surface and shaped to sealingly engage a contact surface of the static components; and a first set of angular features disposed in the second surface, the first set of angular features fluidly connecting the pressurized cavity and the flowpath of the turbine.
    Type: Application
    Filed: May 14, 2013
    Publication date: November 20, 2014
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Dipankar Pal, Robert Walter Coign, Gary Michael Itzel, Kevin Thomas McGovern, Christopher Donald Porter
  • Publication number: 20140334919
    Abstract: In a foundation in which both ends of a turbine rotor are arranged in the foundation and are freely rotatably supported by bearings, there are provided rectangular notches extending over a prescribed vertical depth from the top face of a wall surface on the casing side of a concrete section, having prescribed width and horizontal depth; bearing support members formed with an extension are laid in these notches; the bearings are installed on these extensions.
    Type: Application
    Filed: July 22, 2014
    Publication date: November 13, 2014
    Applicant: Kabushiki Kaisha Toshiba
    Inventor: Masato MISAWA
  • Publication number: 20140314551
    Abstract: A bearing housing (1) of an exhaust-gas turbocharger (7), having an oil guide to at least one bearing point (5) in the bearing housing (1), wherein the oil guide is formed by bores and/or cutouts in the bearing housing (2), and wherein there is formed in the oil guide a siphon (10) which is integrated into the bearing housing (2).
    Type: Application
    Filed: November 19, 2012
    Publication date: October 23, 2014
    Applicant: BorgWarner Inc.
    Inventors: Lothar Koenig, Thomas Koerner
  • Patent number: 8864460
    Abstract: A bearing assembly that includes a first bearing, a second bearing, a spring and a sleeve. The spring applies a preload to each of the bearings, and the sleeve surrounds the spring and the bearings. The sleeve includes an end portion that extends axially beyond the first bearing. The end portion includes a step down in the outer diameter that defines a seat for an o-ring.
    Type: Grant
    Filed: August 20, 2012
    Date of Patent: October 21, 2014
    Assignee: Dyson Technology Limited
    Inventors: Matthew John Childe, Geoffrey Michael Burlington, David Michael Jones
  • Publication number: 20140301828
    Abstract: The described embodiments relate generally to improving performance characteristics of a low profile fan. More specifically configurations having sloped fan blade edges are disclosed. By applying a gradual slope to each of the fan blades, performance of the fan can be increased without risking contact or rubbing between the fan blades and a fan housing. In some embodiments, the sloped fan blades can be configured to prevent contact when bearings of the fan include a certain amount of tilt play.
    Type: Application
    Filed: May 3, 2013
    Publication date: October 9, 2014
    Applicant: Apple Inc.
    Inventors: Anthony Joseph Aiello, Jesse T. Dybenko, Richard A. Herms
  • Patent number: 8845282
    Abstract: A seal assembly for a gas turbine engine includes a carbon seal and a seal plate. The seal plate has a contact face configured to slidably engage the carbon seal. The seal plate has a surface disposed on an opposing side of the seal plate from the contact face. The surface forms a portion of a single passage that extends an entire length of the seal plate. The continuous cooling provided by single passage along the seal plate allows for a more uniform temperature profile along the contact face of seal plate.
    Type: Grant
    Filed: September 28, 2011
    Date of Patent: September 30, 2014
    Assignee: United Technologies Corporation
    Inventors: Todd M. LaPierre, Eric Charles Mundell
  • Publication number: 20140286760
    Abstract: A seal assembly between a disc cavity and a hot gas path in a gas turbine engine includes a rotating blade assembly having a plurality of blades that rotate with a turbine rotor during operation of the engine, and a stationary vane assembly having a plurality of vanes and an inner shroud. The inner shroud includes a radially outwardly facing first surface, a radially inwardly facing second surface, and a plurality of grooves extending into the second surface. The grooves are arranged such that a space having a component in a circumferential direction is defined between adjacent grooves. During operation of the engine, the grooves guide purge air out of the disc cavity toward the hot gas path such that the purge air flows in a desired direction with reference to a direction of hot gas flow through the hot gas path.
    Type: Application
    Filed: January 23, 2013
    Publication date: September 25, 2014
    Inventor: Ching-Pang Lee
  • Publication number: 20140271144
    Abstract: A turbine shroud for a gas turbine engine includes an annular metallic carrier, a blade track, and a cross-key connection formed between the annular metallic carrier and the ceramic blade track. The cross-key connection is formed between the annular metallic carrier and inserts included in the blade track. The inserts are bonded to an annular runner also included in the blade track by a braze layer.
    Type: Application
    Filed: December 3, 2013
    Publication date: September 18, 2014
    Inventors: Sean E. Landwehr, William Westphal, Ted J. Freeman, Adam L. Chamberlain
  • Publication number: 20140271141
    Abstract: A sealing arrangement is disclosed for a rotating shaft. A mechanical seal and a throttle bushing are mounted in a pump casing having a process fluid chamber and an end region. A shaft is rotatably mounted in the pump casing. The seal has a stationary portion mounted to the pump casing, and a rotatable portion mounted to the shaft. A throttle bushing surrounds the shaft and is connected to the casing. The throttle bushing has an inner surface that provides a fluid passageway between the inner surface of the throttle bushing and the shaft. The throttle bushing is spaced along the shaft at an axial distance from the mechanical seal, thus forming a barrier fluid space. The mechanical seal separates the barrier fluid space from the process fluid chamber. Barrier fluid migrates past the throttle busing inner surface, lubricates the pump bearings and gears, and is collected for reuse.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Inventor: Daniel R. Landry
  • Publication number: 20140255163
    Abstract: A vehicular fluid power transmitting device has a pump impeller, a turbine runner, damper device, an annular set member and a bearing assembly. The pump impeller has a pump shell. The damper device is provided between a drive source and the pump shell in an axial direction of an output shaft, and has a damper input member that is connected to the drive source, and a damper output member that is connected to the pump shell. The damper output member is connected to the annular set member that is fixed to the pump shell. The damper input member is relatively rotatably supported via the bearing assembly by the annular set member.
    Type: Application
    Filed: September 25, 2012
    Publication date: September 11, 2014
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, EXEDY CORPORATION, AISIN AW CO., LTD.
    Inventors: Toshiya Yamashita, Naoki Itazu, Yoichi Nakashima, Takashi Hori, Masaru Ebata, Yasunori Doman
  • Publication number: 20140255166
    Abstract: The energy-storing and power-generating system comprises an energy-storing system and a power-generating system. The energy-storing system comprises a high pressure gas generator, a water storage apparatus and a water turbine. The high pressure gas generator comprises at least one sealed high pressure gas tank (2) and an air compressor (1) cooperating therewith. The water storage apparatus comprises at least one sealed water tank (3). The air compressor is in communicated with the high pressure gas tank via a gas inlet pipe (4), while the high pressure gas tank is in communication with the water tank via a gas outlet pipe (5). The water tank is connected to a water inlet of the water turbine (10) via a water outlet pipe. Blades (102) of the water turbine are connected to the power generator via main gears.
    Type: Application
    Filed: July 9, 2012
    Publication date: September 11, 2014
    Inventor: Yunhe Deng
  • Publication number: 20140255165
    Abstract: The proposed rotary pump for transporting liquids containing solids is composed of a pump housing (1) and an impeller (2) disposed on a rotating driven shaft. The pump housing (1) encloses a flow space having an intake region (4) and having a pressure region (5) surrounding the periphery of the impeller (2), as well as also a back space (6) of the impeller. According to the invention, the gap (3) relative to the back space (6) of the impeller is completely sealed opposite the flow space relative to the transported liquid with the solids contained therein, wherein, however, there is provided a connection of the back space (6) of the impeller to the pressure region (5), by which its aeration and venting are made possible.
    Type: Application
    Filed: October 4, 2012
    Publication date: September 11, 2014
    Inventor: Uwe Wuerdig
  • Publication number: 20140255220
    Abstract: The present invention relates to a pump, which comprises a pump body, a pair of check rings and a pneumatic control valve. When the pneumatic control valve is operated, a main shaft in the pump body is enabled to reciprocally move in a shaft hole, thereby enabling two diaphragms to be stretched and compressed at the same time for performing the compressing and the sucking stroke for the liquid; when subject to the hydraulic pressure, an arc-shaped convex ring of each of the check rings is deformed, and a contract ring is contracted for enclosing the main shaft thereby forming a liquid checking effect; when each of the check rings is not subject to the hydraulic pressure or the air pressure, the arc-shaped convex ring is not deformed thereby forming a slit between the contract ring and the main shaft.
    Type: Application
    Filed: March 6, 2013
    Publication date: September 11, 2014
    Applicant: DINO TECHNOLOGY CO., LTD.
    Inventor: Chin-Chou CHANG
  • Publication number: 20140255164
    Abstract: A pump fitting has an inlet adaptor (10) for connection to an outlet (39) of a container (38) of fluid and including an inlet passage (10), an outlet passage (11) for fluid and a pump housing (12) between the inlet passage (10) and the outlet passage (11). The pump housing (12) contains a rotor (17) rotatably received in an interior surface of the housing (12). The rotor (17) includes a housing-engaging surface (23, 24) co-operating with the interior surface of the housing (12) to form a seal therebetween and also including at least one shaped surface (21, 22) radially inwardly of the housing-engaging surface and forming with the interior surface of the housing a chamber (25, 26) for conveying fluid from the inlet passage (10) to the outlet passage (11) on rotation of the rotor (17).
    Type: Application
    Filed: October 4, 2012
    Publication date: September 11, 2014
    Inventors: Richard Paul Hayes-Pankhurst, Jonathan Edward Ford
  • Patent number: 8827636
    Abstract: A turbomachine includes a compressor having a cartridge that is configured to slide in and out of an external casing. The turbomachine further includes an electrical motor having a motor shaft configured to be connected to the compressor shaft. A conduit is configured to extend through the statoric part of the compressor or the motor, from a first magnetic bearing to the second magnetic bearing. The conduit includes conduit electrical cables provided inside the conduit and extending from a first end of the conduit to a second end of the conduit; and electrical cables connecting one of the first and second magnetic bearings to an external connector via the conduit electrical cables of the conduit.
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: September 9, 2014
    Assignee: Nuovo Pignone S.p.A
    Inventors: Massimiliano Mariotti, Luciano Mei, Silvio Giachetti
  • Patent number: 8827637
    Abstract: A seal arrangement for a gas turbine engine comprises a seal support having a hub portion and a peripheral rim portion. A seal member is mounted to a radially inner surface of the hub portion. A first set of circumferentially spaced-apart channel segments project from the peripheral rim portion of the seal support. A second set of circumferentially spaced-apart channel segments projects from a mating stationary structure of the gas turbine engine. The first and second sets of circumferentially spaced-apart channel segments circumferentially may be aligned to complementary form a circumferentially extending channel. A retaining ring may be mounted in the circumferentially extending channel for retaining the seal support on the mating stationary structure of the engine. The seal support may be provided with a diaphragm to provide flexibly between the seal member and the point of attachment of the seal support to the mating structure of the engine.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: September 9, 2014
    Assignee: Pratt & Whitney Canada Corp.
    Inventors: Richard Ivakitch, Andreas Eleftheriou
  • Patent number: 8821109
    Abstract: A device for detecting the axial position of a rotary shaft of a rotary machine comprises a target of ferromagnetic material placed at the end of the rotary shaft, an induction coil associated with a stationary magnetic circuit and placed facing the target while leaving an airgap, and a power supply circuit. The power supply circuit comprises an AC voltage source connected between a first end of the induction coil and a zone situated at a reference voltage, at least one capacitor connected between the ends of the induction coil, and a detector device interposed between a second end of the induction coil and the zone situated at the reference voltage, in order to deliver on a line information about the magnitude of the current flowing between the second end and the zone situated at the reference voltage.
    Type: Grant
    Filed: April 9, 2012
    Date of Patent: September 2, 2014
    Assignee: SKF Magnetic Mechatronics
    Inventor: Ulrich Schroeder
  • Patent number: 8821114
    Abstract: A turbine section having a plurality flow path components forming a plurality of guide vane rings and ring segments arranged in axial succession to define a boundary of a hot gas duct. A vane carrier located around the gas duct, and sealing elements extend radially between circumferentially extending grooves in the vane carrier and respective grooves in the flow path components. The sealing elements include radially inner and outer edges, and at least one axially facing side defining a chamfered portion extending to one of the edges to accommodate axial movement of the sealing element about the one edge within a respective groove.
    Type: Grant
    Filed: June 2, 2011
    Date of Patent: September 2, 2014
    Assignee: Siemens Energy, Inc.
    Inventors: Gennadiy Afanasiev, John N. Strain, Robert W. Sunshine, Robert D. Barker
  • Patent number: 8821113
    Abstract: An air cycle machine includes a bearing housing with a shaft bore. A rotor shaft is arranged in the shaft bore and includes knife edges extending from the rotor shaft. A seal engages the shaft bore and includes an outer diameter and an inner diameter providing a seal land axially aligned with the knife edges. A radial clearance between the seal land and the knife edges is nominally 0.006 inch. The inner diameter is arranged between lateral sides of the seal that define a width. In one example, a tapered surface extending at an angle relative to the outer diameter from the lateral side to the seal land, the tapered surface facing the large end. The outer diameter to the inner diameter provides a first ratio of 1.25-1.28, and the inner diameter to the width provides a second ratio of 4.33-5.58.
    Type: Grant
    Filed: December 21, 2010
    Date of Patent: September 2, 2014
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Victoria S. Richardson, Lawrence Binek, Craig M. Beers
  • Patent number: 8807921
    Abstract: A bearing foil assembly includes a top foil, an intermediate foil, and a bump foil. The bump foil is provided with corrugations at circumferentially spaced locations. The bump foil has an end that is bent radially outwardly from a center of the foil assembly. The top foil has a bent portion extending radially outwardly and adjacent to the bent end of the bump foil. A first radius of curvature is defined to a curved portion leading into the bent portion at a first end adjacent to the bent end. A second radius of curvature is defined at an end of the bent portion on an end opposed to the bent end. A ratio of the first radius of curvature to the second radius of curvature is between 0.6 and 10. A bearing assembly, a shaft sub-assembly, an air machine, and a method of assembling a bearing into an air machine are also disclosed.
    Type: Grant
    Filed: April 4, 2011
    Date of Patent: August 19, 2014
    Assignee: Hamilton Sundstrand Corporation
    Inventor: Ronald M. Struziak
  • Publication number: 20140212278
    Abstract: A turbine housing comprises an exhaust port flange, a turbine discharge flange, a crossover flange, and a bearing support ring. The exhaust port flange is configured for mechanically coupling the turbine housing to a mating structure providing a source of working fluid. The turbine discharge flange is configured for mechanically coupling the turbine housing to an exhaust system. The crossover flange is configured for mechanically coupling the turbine housing to a crossover duct. The bearing support ring is configured for mechanically supporting a bearing, on which a turbine output shaft is supported. The turbine housing defines an inlet plenum, a turbine shroud, and a discharge vent. The exhaust port flange defines an inlet port configured to provide fluid communication between the inlet plenum and the source of working fluid. The turbine shroud defines a fluid expansion flow path for expansion of the stream of working fluid.
    Type: Application
    Filed: January 25, 2013
    Publication date: July 31, 2014
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: Joel Cowgill
  • Publication number: 20140205441
    Abstract: A seal assembly between a disc cavity and a turbine section hot gas path includes a stationary vane assembly and a rotating blade assembly downstream from the vane assembly and including a plurality of blades that are supported on a platform and rotate with a turbine rotor and the platform during operation of the engine. The platform includes a radially outwardly facing first surface, a radially inwardly facing second surface, a third surface, and a plurality of grooves extending into the third surface. The grooves are arranged such that a space is defined between adjacent grooves. During operation of the engine, the grooves guide purge air out of the disc cavity toward the hot gas path such that the purge air flows in a desired direction with reference to a direction of hot gas flow through the hot gas path.
    Type: Application
    Filed: October 2, 2013
    Publication date: July 24, 2014
    Inventor: Ching-Pang Lee
  • Publication number: 20140205443
    Abstract: A seal assembly between a disc cavity and a hot gas path in a gas turbine engine includes a stationary vane assembly and a rotating blade assembly axially upstream from the vane assembly. A platform of the blade assembly has a radially outwardly facing first surface, an axially downstream facing second surface defining an aft plane, and a plurality of grooves extending into the second surface such that the grooves are recessed from the aft plane The grooves are arranged such that a circumferential space is defined between adjacent grooves During operation of the engine, the grooves impart a circumferential velocity component to purge air flowing out of a disc cavity through the grooves to guide the purge air toward a hot gas path such that the purge air flows in a desired direction with reference to a direction of hot gas flow through the hot gas path.
    Type: Application
    Filed: February 25, 2014
    Publication date: July 24, 2014
    Applicant: Siemens Aktiengesellschaft
    Inventors: Ching-Pang Lee, Kok-Mun Tham, Eric Schroeder, Erik Johnson, Dustin Muller, Steven Coppess, Manjit Shivanand, Kahwai G. Muriithi
  • Publication number: 20140205440
    Abstract: A seal assembly for rotary machine is provided. The seal assembly includes multiple compliant plates disposed between a stationary component and a rotary component of the rotary machine, and coupled circumferentially along the stationary component. Each compliant plate comprises a tip configured to be disposed facing the rotary component, and at least one plate slot extending from the stationary component towards the rotary component. The seal assembly also includes at least one annular resistance member configured to be coupled to the stationary component and disposed in the at least one plate slot in the compliant plates and one or more rotor slots or grooves located circumferentially on a surface of the rotary component proximate the tip of each of the plurality of compliant plates.
    Type: Application
    Filed: January 18, 2013
    Publication date: July 24, 2014
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Ajay Keshava Rao, Hrishikesh Vishvas Deo
  • Publication number: 20140205442
    Abstract: A sealing device for a nozzle of a turbomachine turbine including a turbine rotor. The turbine nozzle includes at least one inner annular platform. The turbine rotor includes a downstream spoiler disposed substantially axially. The sealing device includes at least one sealing sheet disposed, radially, between the inner face of the inner platform and the downstream spoiler of the rotor of the turbine so as to form an overlap clearance.
    Type: Application
    Filed: May 4, 2012
    Publication date: July 24, 2014
    Applicant: SNECMA
    Inventors: Florent Pierre Antoine Luneau, Patrick Joseph, Marie Girard, Sebastien Jean-Laurent Prestel, Jean-Luc Soupizon
  • Publication number: 20140199162
    Abstract: A positive displacement pump is disclosed which includes a case that defines a pump cavity. A shaft and rotor, which are detachably connected together, are also included wherein the rotor is disposed within the pump cavity and the shaft passes through an opening in the proximal end of the case. The distal end of the shaft, in addition to being connected to the rotor, is also coupled to a fastener that couples a cover plate over the distal end of the shaft and over at least part of the base portion of the rotor. The opening in the proximal side of the case through which the shaft passes also accommodates a seal assembly. Access to the seal assembly is easily made by removing the head from the case and removing the rotor from the shaft. The seal assembly can be changed or serviced without removal of the shaft.
    Type: Application
    Filed: January 11, 2013
    Publication date: July 17, 2014
    Applicant: VIKING PUMP, INC.
    Inventors: Mike Ramsey, John Howard Hall, Jeffrey Scott Meessmann, Joseph P. Thompson, John A. Dutcher, III, Kelly J. Bohlen
  • Publication number: 20140193245
    Abstract: A turbine engine including a casing, a turbine engine shaft extending axially, a guide bearing for guiding the turbine engine shaft in the casing, the guide bearing including an inner circumferential ring rigidly connected to the turbine engine shaft, an outer circumferential ring fitted in a housing of the casing, and gripping rolling members, and a damping cavity configured to receive a damping fluid to form a damping fluid film for damping the guide bearing, the cavity being delimited radially between an outer surface of the outer ring and an inner surface of the housing. The outer surface of the outer ring and the inner surface of the housing are conical surfaces.
    Type: Application
    Filed: September 4, 2012
    Publication date: July 10, 2014
    Applicant: SNECMA
    Inventors: Serge Rene Morreale, Albert Vial, Fabrice Chevillot
  • Publication number: 20140193244
    Abstract: A bearing housing (1) of an exhaust-gas turbocharger (2) having an oil inlet (3) which is connected to a connecting region (4) of an oil supply line (5), The connecting region (4) of the oil supply line (5) is in the form of a siphon (6).
    Type: Application
    Filed: August 6, 2012
    Publication date: July 10, 2014
    Applicant: BORGWARNER INC.
    Inventors: Thomas Koerner, Lothar Koenig, William Passemard
  • Publication number: 20140190181
    Abstract: A cover plate for a rotor disk in a gas turbine machine includes a cylindrical body having multiple outward facing snaps and multiple inward facing snaps.
    Type: Application
    Filed: January 9, 2013
    Publication date: July 10, 2014
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventors: Mark Borja, Ehren B. Holt
  • Publication number: 20140193243
    Abstract: The disclosure includes a sealing assembly for a turbine system. In one embodiment, the sealing assembly is for a turbine having a rotor blade and a stator nozzle. The sealing assembly includes a pair of oppositely facing seal teeth including concave surfaces. The pair of oppositely facing seal teeth are positioned on one of the rotor blade and the stator nozzle, and are for sealingly engaging the other of the rotor blade and the stator nozzle during operation of the turbine.
    Type: Application
    Filed: January 10, 2013
    Publication date: July 10, 2014
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Revanth Krishna Nallam, Debabrata Mukhopadhyay, Karthik Srinivasan
  • Publication number: 20140186153
    Abstract: A sealing system for a wind turbine comprises first component and a second component positioned proximate the first component and movable relative thereto. An absorbent element is secured to the first component and comprises an oil-absorbent material. A contact member is secured to the absorbent element and comprises a non-absorbent material. The contact member abuts the second component so that lubricant leaking from between the first and second components is collected by the absorbent element. A method of maintain a clean environment in a wind turbine with such a sealing system is also disclosed.
    Type: Application
    Filed: February 21, 2012
    Publication date: July 3, 2014
    Applicant: Vestas Wind Systems A/S
    Inventors: Torben Friis Baun, Robert Rowntree
  • Publication number: 20140186162
    Abstract: In a gas exhaust pump, there is provided a rotation mechanism that can ensure safe rotation and can greatly reduce the usage of a seal gas. A rotation mechanism of the present invention is formed of a rotating shaft and a seal housing. Between the rotating shaft and the seal housing, there is provided a predetermined gap. On at least one of an outer surface of the rotating shaft and an inner surface of the seal housing, there is provided a PFA film. As to a PFA film on a surface of at least one of the rotating shaft and the seal housing, after coating with PFA the wall surface of the rotation mechanism member defining at least the gap, followed by melting and remelting processes, the PFA film is formed to have a high smoothness on its free surface.
    Type: Application
    Filed: June 27, 2012
    Publication date: July 3, 2014
    Applicant: TOHOKU UNIVERSITY
    Inventors: Masamichi Iwaki, Tadahiro Ohmi, Kenji Ohyama, Isao Akutsu, Hajime Iizuka
  • Publication number: 20140186161
    Abstract: A seal plate for an air cycle machine includes a substantially disk-shaped body having a first side configured to be coupled to a compressor housing of the air cycle machine and a second side configured to be coupled to a turbine housing of the air cycle machine. The seal plate also includes a timing pin slot configured to align the first side of the seal plate with the compressor housing. The seal plate further includes a plurality of fastener holes distributed radially in an asymmetric pattern. The plurality of fastener holes includes an alignment fastener hole configured to align the second side of the seal plate with the turbine housing. An angular offset between the alignment fastener hole and the timing pin slot is about 38.45 degrees.
    Type: Application
    Filed: May 22, 2013
    Publication date: July 3, 2014
    Applicant: Hamilton Sundstrand Corporation
    Inventors: Darryl A. Colson, Clarence J. Wytas
  • Publication number: 20140186160
    Abstract: An assembly for a gas turbine engine includes a component, a seal element, and a seal cap. The component defines a pocket adapted to accept the seal element and the pocket allows for sliding movement of the component relative to the seal element. The seal cap overlying the pocket and the seal element.
    Type: Application
    Filed: December 29, 2012
    Publication date: July 3, 2014
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventors: Conway Chuong, Matthew Budnick, Darrell Weidner
  • Patent number: 8764378
    Abstract: A centrifugal pump assembly with at least one impeller (8) and with a thrust bearing (44) which includes a rotating (50) and a stationary (48) bearing part. The rotating (50) as well as the stationary (48) bearing part are designed in a self-aligning manner.
    Type: Grant
    Filed: January 24, 2011
    Date of Patent: July 1, 2014
    Assignee: Grundfos Management a/s
    Inventors: Bjarne Dindler Rasmussen, Peter Monster, Carl-Christian Danielsen