Brush Seal Patents (Class 277/355)
  • Patent number: 11125216
    Abstract: A centrifugal compressor for HVAC application includes a rotary component rotatable about an axis, a static component, and a brush seal fixed to one of the static component and the rotary component. The brush seal includes bristles that contact the other of the static component and the rotary component.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: September 21, 2021
    Assignee: Danfoss A/S
    Inventors: Tianlei Li, Lin Sun, Mihai Bogdan Dobrica
  • Patent number: 11035470
    Abstract: A multi-plane annular brush seal is provided. The brush seal includes a plurality of bristles attached to a front plate and a back plate. The back plate has a BP base end, a first BP inner side surface, a BP transition surface, a second BP inner side surface, and a BP tip end. The first BP inner side surface extends from the BP base end to the BP transition surface, and the second BP inner surface extends from the BP transition surface to the BP tip end. At any given circumferential position of the brush seal, the first BP inner side surface extends substantially parallel to a first plane, and the second BP inner side surface extends substantially parallel to a second plane. The first plane is skewed from the second plane by an obtuse angle.
    Type: Grant
    Filed: April 5, 2018
    Date of Patent: June 15, 2021
    Assignee: Raytheon Technologies Corporation
    Inventors: Neil L. Tatman, Shawn K. Hamilton
  • Patent number: 11028719
    Abstract: A method of working a brush seal assembly for a turbine engine is disclosed and includes the steps of removing an alignment tab from a used brush seal assembly, restoring at least one dimension of the alignment tab to a desired condition and attaching the restored alignment tab to a new brush seal assembly.
    Type: Grant
    Filed: November 8, 2018
    Date of Patent: June 8, 2021
    Assignee: Raytheon Technologies Corporation
    Inventors: David E. Walker, Steven M. Cote
  • Patent number: 11028717
    Abstract: A bearing assembly according to an example of the present disclosure includes, among other things, a bearing situated in a bearing compartment, a seal assembly that defines the bearing compartment, at least one deflector between the bearing and the seal assembly that is rotatable about an axis, and a coalescer at least partially extending about the at least one deflector to define a fluid passage. A method of sealing is also disclosed.
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: June 8, 2021
    Assignee: RAYTHEON TECHNOLOGIES CORPORATION
    Inventors: Armando Amador, Nasr A. Shuaib, Martin J. Walsh, William G. Sheridan, Eric A. Grover
  • Patent number: 10968761
    Abstract: A seal assembly for a gas turbine engine according to an example of the present disclosure includes, among other things, a seal that has a seal body extending circumferentially between opposed mate faces, the seal body having a seal face that bounds a gas path and an opposed impingement face, a seal carrier extending along the impingement face, and a seal member trapped between the seal carrier and the impingement face such that the seal member is circumferentially aligned with one of the mate faces. A method of sealing is also disclosed.
    Type: Grant
    Filed: January 14, 2019
    Date of Patent: April 6, 2021
    Assignee: RAYTHEON TECHNOLOGIES CORPORATION
    Inventors: William M. Barker, Thomas E. Clark, Winston G. Smiddy
  • Patent number: 10962117
    Abstract: A brush seal for a gas turbine engine may comprise a spring-loaded support plate and a plurality of bristles located over the spring-loaded support plate. The spring-loaded support plate may comprise a support bar and a plurality of arms extending from the support bar. The support arms may be configured to apply a biasing load to the support bar.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: March 30, 2021
    Assignee: Raytheon Technologies Corporation
    Inventors: James N Knapp, Timothy M Davis
  • Patent number: 10954806
    Abstract: A seal for a gap between an outer and an inner cylindrical surface, coaxial with a central axis in common and arranged to rotate reciprocally, the seal comprises a plurality of plate elements stacked onto one another to define a ring between the outer and inner cylindrical surfaces, wherein each plate has a concave and a convex side, the convex side of each plate element being adjacent to the concave side of the next plate element.
    Type: Grant
    Filed: October 2, 2015
    Date of Patent: March 23, 2021
    Assignee: NUOVO PIGNONE SRL
    Inventor: Lorenzo Bergamini
  • Patent number: 10927675
    Abstract: Provided is a method for maintaining an axial-flow turbomachine, which has a support structure and a plurality of axially adjacent guide vane rings each of which has a plurality of guide vanes, each guide vane having at least one platform, the platforms being fastened to the support structure by means of retaining elements, wherein facing platform end faces of axially adjacent guide vanes define sealing sections made of a metal material, the sealing sections being associated with each other and jointly forming a sealing assembly.
    Type: Grant
    Filed: April 26, 2018
    Date of Patent: February 23, 2021
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Fathi Ahmad, Matthias Kuhlee, Radan Radulovic
  • Patent number: 10927958
    Abstract: There is disclosed a brush seal assembly including at least one annular bristle pack. The at least one annular bristle pack extends circumferentially around a central axis of the brush seal assembly. The at least one annular bristle pack has bristles extending along longitudinal axes from roots to free tips. The bristles extend toward a cylindrical plane of a the seal land. Projections of the free tips on the cylindrical plane define a bristle tip projection surface being non-axisymmetric. A method of operating a brush seal assembly is also disclosed.
    Type: Grant
    Filed: September 11, 2018
    Date of Patent: February 23, 2021
    Assignee: PRATT & WHITNEY CANADA CORP.
    Inventors: Daniel Coutu, Ignatius Theratil, Nicola Houle
  • Patent number: 10927765
    Abstract: A seal segment (11) includes a seal body having a plurality of laminated thin plate seal pieces (20), and a high-pressure side plate (23). The high-pressure side plate (23) includes an outer diameter side edge portion (23b) which is an outer edge portion in the radial direction (Dr) and extends in a circular are shape in the circumferential direction (Dc), an inner diameter side edge portion (23c) which is an inner edge portion in a radial direction (Dr) and extends in a circular arc shape in the circumferential direction (Dc), and a front edge portion (23d) which is an edge portion on a front side in the rotational direction (Bc). The high-pressure side plate (23) further includes a reinforcing portion (40) only in a region of the high-pressure side plate (23) on the front side in the rotational direction (Bc).
    Type: Grant
    Filed: April 19, 2017
    Date of Patent: February 23, 2021
    Assignee: MITSUBISHI POWER, LTD.
    Inventors: Azumi Yoshida, Hidekazu Uehara, Shin Nishimoto, Naoya Tatsumi, Kohei Ozaki
  • Patent number: 10900365
    Abstract: An assembly forming a gasket for a turbomachine, includes a brush seal made of a plurality of sealing elastic bristles surrounding a core, a retaining ring including a recess to at least partly accommodate the brush seal, and a bearing cover, placed in contact with the brush seal to hold it in position against the retaining ring, the brush seal being located between the retaining ring and the bearing cover.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: January 26, 2021
    Assignee: SAFRAN AIRCRAFT ENGINES
    Inventors: Serge Rene Morreale, Francois Jean Comin, Arnaud Jean-Marie Pierrot
  • Patent number: 10851997
    Abstract: A combustor device for a gas turbines engines includes first and a second tubular members telescopically fitted in axially sliding manner to one another with interposition of annular centering and sealing which include at least a centering annular shoulder and a sealing ring arranged coaxial to one another. The sealing ring is axially spaced apart from the centering annular shoulder so that an axial distance between the centering annular shoulder and the sealing ring is greater than a maximum axial movement allowed between the first and said second tubular members.
    Type: Grant
    Filed: October 5, 2017
    Date of Patent: December 1, 2020
    Assignee: ANSALDO ENERGIA SWITZERLANG AG
    Inventors: Jost Imfeld, Slawomir Swiatek, Oliver Konradt
  • Patent number: 10844737
    Abstract: The present invention relates to a module for a turbomachine, having a guide vane arrangement and a seal carrier, which is arranged, with reference to a longitudinal axis of the module, radially inside an inner platform of the guide vane arrangement, wherein, in each case with reference to the longitudinal axis of the module, when considered in an axial section, the seal carrier has a radially extending seal carrier wall and a sealing web extending axially away from it, which forms a labyrinth seal together with the inner platform of the guide vane arrangement, wherein the seal carrier wall and the sealing web are made up in one piece with each other, i.e., they are built up additively together.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: November 24, 2020
    Assignee: MTU Aero Engines AG
    Inventor: Christoph Lauer
  • Patent number: 10837303
    Abstract: A tip sealing structure for a blade includes a casing having an inner circumferential surface facing the blade; a blocking groove formed in the inner circumferential surface of the casing; and a movable seal provided on a tip of the blade and configured to move in a depth direction of the blocking groove. Since the seal is configured to move into the blocking groove, tighter sealing at the tip of the blade can be accomplished. A seal bracket of the moveable seal encloses a movement space open at one end and includes a seal stop formed at the open end. A brush body including top and bottom crossbars is disposed partially within the seal bracket, such that movement of the moveable seal is limited by the bottom crossbar being stopped by the seal stop. A first brush seal is mounted on the brush body and positioned in the blocking groove.
    Type: Grant
    Filed: August 13, 2018
    Date of Patent: November 17, 2020
    Assignee: Doosan Heavy Industries Construction Co., Ltd
    Inventor: Jin Woo Song
  • Patent number: 10794205
    Abstract: A ceramic brush seal for a gas turbine engine, and a process for manufacturing the seal are provided. In one example, the process includes deinfiltrating an edge of a plurality of plies having a preimpregnated configuration. The edge is defined by a plurality of ceramic fibers extending away from a portion edge of a matrix infiltrated portion of each of the plies. In another example, the process includes masking an edge of a plurality of plies, the edge being defined by a plurality of ceramic fibers extending away from a portion edge of a body portion of each of the plies, and infiltrating the body portion of the plurality of plies with a ceramic matrix slurry. The plies are stacked, formed into a green body and then fired to form the component. The plies may include oxide/oxide woven ceramic fiber plies.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: October 6, 2020
    Assignee: Rolls-Royce North American Technologies Inc.
    Inventor: Ronald Walter Overholser
  • Patent number: 10787923
    Abstract: A seal for a gas turbine engine is disclosed. In various embodiments, the seal includes a first annular ring; a second annular ring; an annular brush having a first brush end disposed between the first annular ring and the second annular ring; and an axial ring seal having a first seal end configured for contact with the second annular ring.
    Type: Grant
    Filed: August 27, 2018
    Date of Patent: September 29, 2020
    Assignee: RAYTHEON TECHNOLOGIES CORPORATION
    Inventors: Thomas E Clark, William M. Barker
  • Patent number: 10683769
    Abstract: A seal for a rotary machine includes a flexible element extending circumferentially about a rotating component and extending generally radially from a first end to a free second end. The flexible element is coupled proximate the first end for rotation with the rotating component. The seal also includes a retaining plate having a stop face that orients the flexible element at a first angle when the rotating component is operating at less than a critical speed and under the including of pressure loading, such that a clearance gap is defined between the free second end and a stationary component. The flexible element extends at substantially a second angle when the rotating component is operating at a speed greater than the critical speed, such that the flexible element forms a dynamic seal between the rotating component and the stationary component.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: June 16, 2020
    Assignee: General Electric Company
    Inventors: Neelesh Nandkumar Sarawate, Deepak Trivedi, Xiaoqing Zheng
  • Patent number: 10663064
    Abstract: A brush seal assembly includes a brush seal, a brush support portion, and an assembly support portion. The brush seal, which has a multitude of bristles forming an angle with respect to a radial direction of a rotating body rotated inside a casing, is disposed around an outer circumferential surface of the rotating body and is oriented with respect to the body's rotating direction. The brush support portion supports the brush seal by extending toward the rotating body while contacting a low-pressure side of the brush seal. The assembly support portion supports the brush seal and the brush support portion and to receive respectively a base end of the brush seal and an axial protrusion of the brush support portion. The brush support portion contacts the brush seal along a predetermined length, which is greater than that of a line following a bristle of the brush seal.
    Type: Grant
    Filed: May 3, 2018
    Date of Patent: May 26, 2020
    Assignee: Doosan Heavy Industries Construction Co., Ltd
    Inventor: Mahmut Faruk Aksit
  • Patent number: 10633995
    Abstract: A gas turbine engine includes a turbine section having a turbine rotor and at least one blade extending outwardly of the turbine rotor. The turbine rotor rotates about an axis of rotation. A blade outer air seal is positioned radially outward of the at least one blade. The blade outer air seal has an axially forward hook and an axially aft hook supported to static structure. An axial seal is attached to static structure forward of the forward hook, and has a sealing portion extending in an aft direction. A sealing surface member is positioned intermediate an aft end of the axial seal and a forward end of the forward hook to provide a sealing surface for sealing between the seal and the blade outer air seal.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: April 28, 2020
    Assignee: United Technologies Corporation
    Inventors: William M. Barker, Thomas E. Clark
  • Patent number: 10615443
    Abstract: A fuel cell system includes a fuel cell stack and a stack case. The fuel cell stack includes power generation cells, a first end and a second end, a first side and a second side, and a top side and a bottom side. The stack case contains the fuel cell stack therein. The stack case includes a first end plate, a second end plate, a first side plate, a second side plate, a top cover plate, a bottom cover plate, and sealing members. Each of the sealing members is disposed between the first side plate and the first end plate, between the first side plate and the second end plate, between the second side plate and the first end plate, and between the second side plate and the second end plate. Each of the sealing members includes an end portion. The end portion has a T-shape.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: April 7, 2020
    Assignee: HONDA MOTOR CO., LTD.
    Inventor: Hideharu Naito
  • Patent number: 10590790
    Abstract: The invention concerns a conical hula seal wherein an inner part of the conical hula seal is closer to a conical hula seal longitudinal axis than an outer part of the conical hula seal, and wherein the conical hula seal extends in a circumferential direction relative to the conical hula seal longitudinal axis. A gas turbine which includes the conical hula seal is also disclosed, along with a method of operating a gas turbine which includes a conical hula seal that seals a gap between a first vane and a picture frame, the method including purging the gap with a cooling fluid.
    Type: Grant
    Filed: March 25, 2016
    Date of Patent: March 17, 2020
    Assignee: ANSALDO ENERGIA SWITZERLAND AG
    Inventors: Hans-Christian Mathews, Urs Benz, Frank Graf
  • Patent number: 10563771
    Abstract: Aspects of the disclosure are directed to a brush seal comprising: a first plate, a wire mesh adjacent the first plate, a bristle pack adjacent the wire mesh, and a second plate adjacent the bristle pack. Aspects of the disclosure are directed to a method comprising: positioning a wire mesh adjacent to a first plate, positioning a bristle pack adjacent to the wire mesh, positioning a second plate adjacent to the bristle pack, applying a toolset to hold the first plate, the wire mesh, the bristle pack, and the second plate in a stack-up, and performing an operation to form a brush seal from the stack-up of the first plate, the wire mesh, the bristle pack, and the second plate.
    Type: Grant
    Filed: April 7, 2016
    Date of Patent: February 18, 2020
    Assignee: United Technologies Corporation
    Inventors: Jeremy Drake, Raymond Surace
  • Patent number: 10550712
    Abstract: The invention relates to a motor vane for a turbine engine, comprising a body (170) locally defining a blade provided at the radially outer end with a root (33), characterised in that it also comprises at least one sealing element (39) extending beyond the radially outer end of the root and connected to an area of the root by means of a movable mechanical link (37).
    Type: Grant
    Filed: October 22, 2015
    Date of Patent: February 4, 2020
    Assignee: Safran Aircraft Engines
    Inventors: Didier Noël Durand, Olivier Jean Daniel Baumas, Nicolas Daniel Delaporte
  • Patent number: 10533665
    Abstract: The invention is directed to a seal arrangement, in particular a brush seal, for a turbine, in particular an aircraft gas turbine, with a sealing element and with a sealing surface that interacts with the sealing element, wherein the sealing element and the sealing surface are arranged concentrically with respect to each other, in particular concentrically around a machine axis of the turbine is hereby characterized in that the sealing element and the sealing surface are designed in such a way that, in a first operating state, a gap is formed between them, and in that, in a second operating state, a sealing contact is produced between the sealing element and the sealing surface.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: January 14, 2020
    Assignee: MTU Aero Engines AG
    Inventor: Alexander Kloetzer
  • Patent number: 10519791
    Abstract: A shaft sealing device includes a plurality of leaves that is arranged in a periphery of a rotating shaft and divides a space around the rotating shaft into two spaces in an axial direction of the rotating shaft, and a side seal plate that is arranged on one side of the plurality of leaves in the axial direction of the rotating shaft and has an opposite surface facing a side end on one side of the plurality of leaves. The side seal plate has a friction reducing portion for reducing a friction force between the opposite surface of the side seal plate and a surface of the side end on the one side of the plurality of leaves.
    Type: Grant
    Filed: November 10, 2014
    Date of Patent: December 31, 2019
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Azumi Yoshida, Hidekazu Uehara, Kohei Ozaki, Shin Nishimoto
  • Patent number: 10520016
    Abstract: Improved bearing roller elements are disclosed. Vanes are added to a ring-roller type element which allow fluids to flow through a bearing assembly in a controlled manner. The fluids can then provide convection cooling. The vaned ring-roller elements allow the creation of a pump, either as part of the bearing assembly's cooling system or as a dedicated device. The use of magnetic spokes in ring-roller type elements which can be used with or without the vanes which allows them to be driven by an electromagnetic field is also disclosed, as is the use of such magnetic elements in the bearing roller elements to allow electromagnetic braking and/or regenerative braking. A bearing assembly incorporating the roller elements in a ring configuration and using pre-load to produce additional benefits is also disclosed.
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: December 31, 2019
    Assignee: Taurus Technologies Group, Inc.
    Inventors: Stefan Magnusson, Marta Magnusson, Maxine Magnusson
  • Patent number: 10519807
    Abstract: Turbine assemblies for a turbine of a gas turbine engine are disclosed herein. The turbine assemblies include a carrier and a blade track. The blade track extends around blades of a turbine wheel assembly to block gasses passed along a gas path from moving over the blades without causing the blades to rotate during operation of the turbine assembly. The blade track includes a plurality of blade track segments arranged circumferentially adjacent to one another about a central axis to form a ring. A retention ring engages both the carrier and the blade track segments to facilitate coupling and sealing.
    Type: Grant
    Filed: April 19, 2017
    Date of Patent: December 31, 2019
    Assignees: Rolls-Royce Corporation, Rolls-Royce North American Technologies Inc., Rolls-Royce High Temperature Composites Inc.
    Inventors: Brian J. Shoemaker, Joseph P. Lamusga, Ted J. Freeman
  • Patent number: 10519793
    Abstract: An aircraft turbojet low-pressure compressor includes a sealing device for a turbine engine. The device includes an internal stator shroud connected to an external casing via an annular row of stator vanes and a rotor with two brush seals arranged inside the shroud and respectively upstream and downstream. The internal shroud includes a frustoconial internal surface, which is associated with each brush seal. Each frustoconical surface lies flush with and is inclined with respect to the bristles of the brush seal, so as to seal with the said brush. A method for assembling a sealing device is also proposed.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: December 31, 2019
    Assignee: SAFRAN AERO BOOSTERS SA
    Inventors: Stéphane Hiernaux, Nicolas Habotte
  • Patent number: 10502322
    Abstract: Provided is a split type brush seal device, brush seal pieces, and a method of assembling a split type brush seal device in which the brush seal pieces can be applied to an attached portion having an acceptable curvature. The split type brush seal device includes plural brush seal pieces having bundled wire rods, and attached members in which the plural brush seal pieces are attached to attached portions in the circumferential direction. Each of the brush seal pieces has a plate of arc shape to which the bundled wire rods are fixed. The split type brush seal device further includes a biasing member that forcibly cause a curvature of the plate to approximate to a curvature of the attached portion.
    Type: Grant
    Filed: March 3, 2016
    Date of Patent: December 10, 2019
    Assignee: EAGLE INDUSTRY CO., LTD.
    Inventors: Toru Kono, Ryu Kikuchi, Norihiko Saito
  • Patent number: 10465546
    Abstract: A seal system may comprise a seal cavity defined, at least partially, by a first axial surface and a second axial surface. The second axial surface may be recessed with respect to the first axial surface. A brush seal may be disposed in the seal cavity. The brush seal may comprise a first bristle pack and a backing plate coupled to the first bristle pack. A first group of bristles of the first bristle pack may be radially inward of the first axial surface.
    Type: Grant
    Filed: August 28, 2017
    Date of Patent: November 5, 2019
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Mark J. Rogers, Timothy M. Davis
  • Patent number: 10443735
    Abstract: A brush seal having an annular shape, includes: a low-pressure-side plate including a low-pressure-side recessed portion radially recessed and circumferentially extending; a high-pressure-side plate including a high-pressure-side recessed portion positioned to face the low-pressure-side recessed portion, the high-pressure-side recessed portion being radially recessed and circumferentially extending; a brush body including a plurality of wire rods and supported between the low-pressure-side plate and the high-pressure-side plate; and a fixing member inserted into a space formed by the low-pressure-side recessed portion and the high-pressure-side recessed portion.
    Type: Grant
    Filed: January 26, 2016
    Date of Patent: October 15, 2019
    Assignee: EAGLE INDUSTRY CO., LTD.
    Inventor: Toru Kono
  • Patent number: 10415413
    Abstract: A seal assembly includes an annular base, a spring, a shoe, a first channel, a seal cover, and a seal. The spring includes a beam and is connected to the annular base. The shoe is disposed radially inward of the annular base and connected to the spring. The shoe includes an upstream portion, a downstream portion, and a lip connected to and extending radially outward from the upstream portion of the shoe. The spring extends from the annular base to the shoe. The first channel is positioned between the shoe and the beam of the spring. The seal is disposed between the seal cover and the shoe such that a downstream face of the seal is in contact with an upstream face of the shoe.
    Type: Grant
    Filed: September 1, 2016
    Date of Patent: September 17, 2019
    Assignee: United Technologies Corporation
    Inventors: Conway Chuong, Joey Wong, Ross Wilson, Christopher J. Peters
  • Patent number: 10400896
    Abstract: A dual-ended brush seal assembly that may be for turbine engine includes a first structure having a first surface and a second structure having a second surface. A brush seal of the assembly includes a bent bristle pack having a first end in sealing contact with the first surface and an opposite second end in sealing contact with the second surface. The first and second ends project in respective first and second directions that generally traverse one-another.
    Type: Grant
    Filed: August 26, 2015
    Date of Patent: September 3, 2019
    Assignee: United Technologies Corporation
    Inventor: Timothy M. Davis
  • Patent number: 10393270
    Abstract: A brush seal includes a bristle pack disposed between a top plate and a back plate. A sliding backing plate is disposed between the bristle pack and the back plate. The bristle pack includes a first bristle set that extends across a seal gap between a first engine component and a second engine component to prevent leakage across the seal gap and a second bristle set that exerts a force on the sliding backing plate. The sliding backing plate supports at least a portion of the first bristles and extends across the seal cavity to contact the second component. The force exerted on the sliding backing plate drives the sliding backing plate into contact with the second component.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: August 27, 2019
    Assignee: United Technologies Corporation
    Inventors: Timothy M Davis, Jose R. Paulino, Mark J. Rogers
  • Patent number: 10330117
    Abstract: The main object of the invention is an angular stator sector (10) for a turbomachine compressor, comprising an outer shroud and an inner shroud (S) arranged coaxially one inside the other, and at least one vane (P) extending radially between the outer shroud and the inner shroud (S) and connected to the latter by its radial ends, characterized in that the inner shroud (S) comprises at least one brush seal (1, 2, 3) forming an obstacle to the recirculation of the downstream gases upstream of the inner shroud (S).
    Type: Grant
    Filed: September 5, 2014
    Date of Patent: June 25, 2019
    Assignee: SAFRAN AIRCRAFT ENGINES
    Inventors: Damien Joseph Cellier, Mickael Dias Gomes, Antoine Robert Alain Brunet, Daniel Georges Plona
  • Patent number: 10309538
    Abstract: A device for attaching seal elements in a recess, particularly in an installation groove designed in a flow machine, is disclosed. At least one fixing body is arranged between a seal carrier element and a clamping body assigned to the seal carrier element, where the fixing body is integrally connected to the seal carrier element and the clamping body by bar-like connections that can be detached when subjected to a force. In addition, at least one plastic deformable structure is designed on the fixing body. An attachment method as well as a production method for the device is also disclosed.
    Type: Grant
    Filed: January 27, 2016
    Date of Patent: June 4, 2019
    Assignee: MTU Aero Engines AG
    Inventor: Julian Weber
  • Patent number: 10280799
    Abstract: A seal assembly for a gas turbine engine according to an example of the present disclosure includes, among other things, a seal arc segment that has a sealing portion and a first interface portion. The first interface portion defines circumferential mate faces. A support includes a mounting portion and a second interface portion. The mounting portion is configured to be fixedly attached to an engine static structure, and the second interface portion is radially inward of the first interface portion. At least one positioning member is dimensioned to abut the first and second interface portions such that the first and second interface portions are spaced apart by a predetermined distance in a radial direction.
    Type: Grant
    Filed: June 10, 2016
    Date of Patent: May 7, 2019
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventor: Timothy M. Davis
  • Patent number: 10233764
    Abstract: A vane assembly for a gas turbine engine is disclosed in this paper. The vane assembly includes an inner platform, an outer platform, and a ceramic-containing airfoil. The ceramic-containing airfoil extends from the inner platform to the outer platform. A clamp mechanism couples the inner platform and the outer platform to the ceramic-containing airfoil.
    Type: Grant
    Filed: October 12, 2015
    Date of Patent: March 19, 2019
    Assignees: Rolls-Royce North American Technologies Inc., Rolls-Royce Corporation
    Inventors: David J. Thomas, Richard C. Uskert, Thomas D. Nixon
  • Patent number: 10208674
    Abstract: A seal assembly, includes a first brush supported between first and second plates, a second brush supported on the first and second plates transverse to the first brush seal, and a third plate attached to the second brush.
    Type: Grant
    Filed: February 26, 2014
    Date of Patent: February 19, 2019
    Assignee: United Technologies Corporation
    Inventor: Paul M. Lutjen
  • Patent number: 10196987
    Abstract: A shaft sealing mechanism (11) that partitions an annular space (14) that is formed between a fixed part (12) and a rotating shaft (13) into a high-pressure-side region and a low-pressure-side region, that obstructs the flow of a fluid (G), and that is provided with: a plurality of annularly laminated thin-plate seal pieces (22) that are fixed to an annular seal housing (21) that is provided to the fixed part and are in sliding contact with the rotating shaft; and an annular low-pressure-side plate (26) that is sandwiched and held such that a low-pressure-side gap (?L) is formed between the seal housing and a low-pressure-side side edge part (22d) of the thin-plate seal pieces. The thin-plate seal pieces have pressure-conduction holes (31) that are formed further to the inside in the radial direction of the rotating shaft than an inner-circumferential-side tip part (26a) of the low-pressure-side plate.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: February 5, 2019
    Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventors: Kohei Ozaki, Hidekazu Uehara, Azumi Yoshida, Hiroharu Oyama
  • Patent number: 10190432
    Abstract: A brush seal assembly is operable to seal a gap between a diaphragm and a rotor of a turbine. A brush seal assembly includes: a brush configured to have one end inserted into one side of a diaphragm and the other end protruding toward a rotor; a support strip configured to support one side of the brush; and a back plate configured to support one side of the support strip.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: January 29, 2019
    Assignee: Doosan Heavy Industries Construction Co., Ltd
    Inventor: Mahmut Faruk Aksit
  • Patent number: 10190433
    Abstract: A shaft sealing mechanism (11) that partitions an annular space (14) that is formed between a fixed part (12) and a rotating shaft (13) into a high-pressure-side region and a low-pressure-side region, that obstructs the flow of a fluid (G), and that is provided with: a plurality of annularly laminated thin-plate seal pieces (22) that are fixed to an annular seal housing (21) that is provided to the fixed part and are in sliding contact with the rotating shaft; and an annular low-pressure-side plate (26) that is sandwiched and held such that a low-pressure-side gap (?L) is formed between the seal housing and a low-pressure-side side edge part (22d) of the thin-plate seal pieces. The thin-plate seal pieces have a thick part (31) that is formed further to the inside in the radial direction of the rotating shaft than an inner-circumferential-side tip part (26a) of the low-pressure-side plate.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: January 29, 2019
    Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventors: Kohei Ozaki, Azumi Yoshida, Hidekazu Uehara, Tanehiro Shinohara, Hiroharu Oyama
  • Patent number: 10174844
    Abstract: A shaft seal mechanism (11) that blocks a fluid (G) flowing within a ring-shaped space (14) is equipped with: a ring-shaped seal housing (21) disposed on a fixed section (12); a plurality of thin-plate seal pieces (22) that are secured to the seal housing (21), are in sliding contact with a rotating shaft (13), and are layered in a ring shape; a ring-shaped high-pressure-side plate (25) that forms a high-pressure-side gap (?H) between itself and the seal housing (21); a ring-shaped low-pressure-side plate (26) that forms a low-pressure-side gap (?L) between the seal housing (21) and the thin-plate seal pieces (22); stepped sections (31, 32) that are formed on side edge sections (22c, 22d) of the thin-plate seal pieces (22); and locking sections (25b, 26b) that lock the stepped sections (31, 32).
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: January 8, 2019
    Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventors: Hidekazu Uehara, Kohei Ozaki, Azumi Yoshida, Hiroharu Oyama
  • Patent number: 10145254
    Abstract: A sealing structure according to the embodiment includes a first cylinder, a second cylinder, an intermediate cylinder, a first sealing part, and a second sealing part. The first cylinder forms a flow passage of a working fluid of a turbine therein. The second cylinder is disposed at one end of the first cylinder and downstream from the flow passage. The intermediate cylinder is disposed between the first and second cylinders. The first sealing part is disposed at one of a first region between the first cylinder and the intermediate cylinder and a second region between the second cylinder and the intermediate cylinder, and follows a positional displacement in a radial direction. The second sealing part is disposed at the other of the first and second regions, and follows a positional displacement in an axial direction.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: December 4, 2018
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Norikazu Takagi, Shogo Iwai
  • Patent number: 10100655
    Abstract: The invention relates to a brush seal, in particular for the sealing of gaps occurring in turbomachines, including a plurality of individual fibers, individual wires or bundles of individual fibers or wires, wherein, in each case, at least two individual fibers or wires, and/or at least two fiber bundles or wire bundles are braided or twisted into a fiber or wire package. In addition, the invention relates to a method for producing a brush seal.
    Type: Grant
    Filed: September 18, 2014
    Date of Patent: October 16, 2018
    Assignee: MTU AERO ENGINES AG
    Inventors: Christoph Cernay, Stephan Prostler, Wolfgang Schmidmayr, Julian Weber, Benjamin Grobkurth, Stefan Beichl
  • Patent number: 10060533
    Abstract: The present disclosure relates to sealing systems for gas turbine engines. In one embodiment, a seal support structure for a gas turbine engine includes a seal support configured to retain a circumferential seal and an engine support configured for mounting the seal support structure to a gas turbine engine mount. The engine support includes at least one channel configured to provide radial movement of the seal support structure and circumferential retention of the seal support. Another embodiment is directed to a sealing system including a circumferential seal and seal support structure configured to provide radial movement.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: August 28, 2018
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventor: Darren M. Smith
  • Patent number: 10047619
    Abstract: A seal configuration (100) for a turbo machine having a rotor (5), wherein the seal configuration (100) has a sealing element (300) to create a seal with respect to the rotor (5) in an installed position and a supporting device (200). The supporting device (200) has, in at least one section of the supporting device, a material (9) that melts when it comes into contact with the rotating rotor (5) in the installed position. A turbo machine having a seal configuration (100) is also provided.
    Type: Grant
    Filed: November 4, 2014
    Date of Patent: August 14, 2018
    Assignee: MTU Aero Engines AG
    Inventors: Andre Werner, Stephan Klaen, Manuel Hertter, Frank Stiehler
  • Patent number: 10041416
    Abstract: A system for providing a seal between a combustor and a turbine vane. The system includes a flange configured to extend radially from the combustor, and a seal. The flange includes a flange surface configured to face in an axial direction toward a surface of the vane. The seal is configured to be axially loaded between the flange surface and the surface of the vane.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: August 7, 2018
    Assignee: United Technologies Corporation
    Inventors: Kevin Joseph Low, Joey Wong
  • Patent number: 10024434
    Abstract: A rotary machine (100) includes a rotor (5) that rotates about an axis, a seal housing (30) that is disposed so as to face an outer peripheral surface of the rotor (5), and a seal body (10) that includes a plurality of thin plates (20) extending inward from the seal housing (30) in a radial direction and laminated in a circumferential direction. One thin plate (20) of the plurality of thin plates (20) has a shape in which the thin plate comes into contact with the other thin plates (20) provided on front and rear sides in a rotational direction in a state in which the thin plate does not come into contact with the rotor (5).
    Type: Grant
    Filed: January 27, 2015
    Date of Patent: July 17, 2018
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Kohei Ozaki, Hidekazu Uehara, Shin Nishimoto
  • Patent number: 9995395
    Abstract: A brush seal includes a bristle part formed by multiple bristles attached to a stationary part between the stationary part and a rotational part that undergo relative motion by maintaining a space in between and a back plate to restrict the movement of the bristle part. Such brush seal for sealing a fluid between the stationary part and the rotational part includes the bristle part formed by the multiple bristles such that the multiple bristles arranged in a direction of pressure difference between the high-pressure side and the low-pressure side are mutually fixed between a base end and a free end to form planar bristles, and these planar bristles are arranged continuously in layers in a circumferential direction to form a circular bristle part, wherein circumferential grooves are formed on the sliding surface of the bristle part on its free end side.
    Type: Grant
    Filed: February 28, 2013
    Date of Patent: June 12, 2018
    Assignee: EAGLE INDUSTRY CO., LTD.
    Inventor: Hideyuki Inoue