Seal Between Relatively Movable Parts (i.e., Dynamic Seal) Patents (Class 277/345)
  • Patent number: 9841109
    Abstract: A shaft seal structure capable of preventing a seal body of the shaft seal structure of a rotation body from being held in an inclined posture even when the seal body is inclined is provided. It includes, an accommodation body (9), a seal body (12) including thin plate seal pieces (20), and a plate body (17) covering one end in the axial direction (20d) of the seal body (12). A recessed portion (31) recessing in the axis direction, and a protruding portion projecting to the other side from the recessed portion (31) are formed on one of the plate surface (17c) of the plate body (17) and the inner wall surface (9e) of the accommodation body (9). When the protruding portion abuts the other side and a pocket (X), the recessed portion (31) communicates with the pocket (X) and the fluid low pressure region.
    Type: Grant
    Filed: October 26, 2011
    Date of Patent: December 12, 2017
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Hidekazu Uehara, Tanehiro Shinohara, Shin Nishimoto, Takashi Nakano, Masato Araki, Tatsuji Takahashi
  • Patent number: 9765861
    Abstract: To provide an aircraft engine in which an accessory can be directly supported with no accessory gearbox intervening to thereby suppress an increase in size thereof, the aircraft engine (E) includes a take-out shaft (11) having a first end portion, connected with an engine rotary shaft (9) and extending in a radially outward direction, and also having a second end portion connected with an accessory (1), and a mounting pad (12) provided in an engine main body (EB) and to which the accessory (1) is fitted. The mounting pad (12) forms an outer perimeter of an opening (48) through which the take-out shaft (11) extends. The opening (48) is sealed by a covering (47), through which the take-out shaft (1) extends, and a sealing member (49) to seal between the covering (47) and the take-out shaft (11).
    Type: Grant
    Filed: April 4, 2012
    Date of Patent: September 19, 2017
    Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Tatsuhiko Goi, Kenichiro Tanaka, Koji Watanabe, Isao Fujii
  • Patent number: 9656375
    Abstract: A simplified installation tool for installing a cover strip in a linear guide rail assembly is provided. The installation tool includes a body having a channel that extends across a bottom surface of the body that is adapted to receive a guide rail. The channel is defined by an upper surface with a lead-in angled projection and sides defined by two L-shaped guide portions that extend from the upper surface and that face each other. Two undercut areas of the channel are located between the L-shaped guide portions and the upper surface of the channel. Retention tabs of the installation tool can attach to the carriage of the linear guide rail assembly. The lead-in angled projection provides a downward force on the cover strip as the carriage travels along the guide rail to press the cover strip into a flattened state within a slot of the guide rail.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: May 23, 2017
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Samuel Thomas, Carl White
  • Patent number: 9638057
    Abstract: An apparatus and method for cooling a dual, walled component is disclosed herein. An augmented cooling system according to the present disclosure includes transporting a cooling fluid through one wall of a cooling pathway formed between two opposing spaced apart walls of the dual walled component. The cooling fluid can be deflected away from one wall of the cooling pathway with a first trip strip as the cooling fluid traverses along the cooling pathway. The cooling fluid can be deflected away from the opposing wall of the cooling pathway with a second trip strip as the cooling fluid continues traversing along the cooling pathway. The cooling fluid can then be discharged from the cooling pathway through the opposing wall of the dual walled component.
    Type: Grant
    Filed: December 31, 2013
    Date of Patent: May 2, 2017
    Assignee: Rolls-Royce North American Technologies, Inc.
    Inventor: Okey Kwon
  • Patent number: 9488279
    Abstract: Provided is a method of fabricating a shaft sealing device, in which a plurality of thin plate pieces arranged in a circumferential direction of a rotation shaft are provided and base ends of the thin plate pieces are mutually connected, the method including a stacking step of stacking the plurality of thin plate pieces in one direction, a connecting step of mutually connecting the base ends of the plurality of stacked thin plate pieces to form a stacked body, and a first smoothing step of bringing one lateral end surface of two lateral end surfaces of the stacked body formed by each end portion in a width direction of the plurality of thin plate pieces in contact with a flat surface to smooth the other lateral end surface.
    Type: Grant
    Filed: April 28, 2011
    Date of Patent: November 8, 2016
    Assignees: MITSUBISHI HEAVY INDUSTRIES, LTD., EAGLE INDUSTRY CO., LTD.
    Inventors: Hidekazu Uehara, Tanehiro Shinohara, Takashi Nakano, Shin Nishimoto
  • Patent number: 9205729
    Abstract: A sunshade device is provided with a shading sheet adapted to shade light incident through an opening formed in the vehicle to an interior of a passenger compartment or to permit the passage of the light. The shading sheet moves along a pair of guide rails having guide passages, which slidably support both ends of the shading sheet in the lateral direction of the vehicle. The sunshade device is provided with shielding members extending in the longitudinal direction of the guide rails and shielding the guide passages from the interior of the passenger compartment.
    Type: Grant
    Filed: June 14, 2012
    Date of Patent: December 8, 2015
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventors: Shinichi Hiramatsu, Kazuki Sawada
  • Patent number: 9039013
    Abstract: A hydrodynamic non-contacting seal wherein the sealing surface of a rotatable sealing member is grooved in a spiral pattern such that the depth of the grooves decreases in a direction opposite to the direction of rotation of the rotatable sealing member.
    Type: Grant
    Filed: May 4, 2011
    Date of Patent: May 26, 2015
    Assignee: United Technologies Corporation
    Inventors: Antonio F. Artiles, Ethan K. Stearns
  • Patent number: 9027931
    Abstract: According to an aspect of the present invention, there is provided a seal mechanism, including: a plate spring having a main body portion which has a curved shape and a pair of hook portions which are formed by bending the main body portion; and a seal member having a seal surface and a pair of projecting portions which are formed on an opposite side of the seal surface to catch the hook portions.
    Type: Grant
    Filed: December 6, 2011
    Date of Patent: May 12, 2015
    Assignee: Piolax, Inc.
    Inventor: Masayuki Tomura
  • Patent number: 9010762
    Abstract: The present invention refers to a seal ring for a mechanical seal, comprising: a base body (2) with a diamond layer (3) which is applied to the base body (2) and configured as a sliding surface, wherein the diamond layer (3) has a thickness (D) which is less than or equal to 4 ?m, particularly less than or equal to 3 ?m, particularly less than or equal to 2 ?m, particularly preferably about 1 ?m, and wherein the base body (2) is without fissures or only comprises fissures that have a maximum longitudinal extension (L) on a surface of the base body (2) or in the base body (2) that is less than or equal to 5 ?m.
    Type: Grant
    Filed: October 4, 2011
    Date of Patent: April 21, 2015
    Assignee: EagleBurgmann Germany GmbH & Co. KG
    Inventors: Joachim Otschik, Andreas Schrüfer, Dieter Ziegenbein, Rudolf Kollinger, Lothar Schäfer, Markus Höfer, Markus Armgardt
  • Patent number: 8992091
    Abstract: A bearing seal, which has a rubber body impregnated with an electrically conductive material such as graphite. A level of conductivity of the bearing seal depends upon an amount of graphite integrated into the rubber body. A bearing is also disclosed, which includes at least one closure element, such as a seal, arranged between an outer and inner ring of the bearing that is impregnated with an electrically conductive material, such as graphite, to create a conductive pathway for an electrical current to circumvent the rolling elements of the bearing. The closure element aids in ensuring electric current is kept away from the rolling elements by diverting electric current from the outer ring to the inner ring of the bearing.
    Type: Grant
    Filed: April 30, 2013
    Date of Patent: March 31, 2015
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Michael Cudrnak, William Moratz
  • Publication number: 20150069711
    Abstract: A seal comprises: a first portion including a crosslinked product of: a first crosslinked polymer; and a second crosslinked polymer; and a second portion including a polymer which is different than a constituent polymer in the first portion, wherein the seal has a gradient in glass transition temperature. A method for sealing comprises: disposing the seal of claim 1 in an opening; heating the seal to a temperature greater than a minimum value of the glass transition temperature of the gradient; and applying pressure to an elastic portion of the seal for sealing the opening.
    Type: Application
    Filed: September 18, 2014
    Publication date: March 12, 2015
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Michael H. Johnson, Nicholas Carrejo
  • Patent number: 8974891
    Abstract: Methods of forming ceramic matrix composite structures include joining at least two lamina together to form a flexible ceramic matrix composite structure. Ceramic matrix composite structures include at least one region of reduced inter-laminar bonding at a selected location between lamina thereof. Thermal protection systems include at least one seal comprising a ceramic matrix composite material and have at least one region of reduced inter-laminar bonding at a selected location between lamina used to form the seal. Methods of forming thermal protection systems include providing one or more such seals between adjacent panels of a thermal protection system.
    Type: Grant
    Filed: October 26, 2007
    Date of Patent: March 10, 2015
    Assignee: COI Ceramics, Inc.
    Inventor: James A. Riedell
  • Publication number: 20150001806
    Abstract: A seal for a doctor blade device in a printing press includes a blade contacting section with a front side engaged with a doctor blade of the doctor blade device and a rear side that is softer, more elastic or more resilient than the front side. A doctor blade device having a seal is also provided.
    Type: Application
    Filed: June 27, 2014
    Publication date: January 1, 2015
    Inventors: SVEN BUTSCHKO, JOERG SCHILFAHRT
  • Publication number: 20140367921
    Abstract: A segment of an abradable ring seal for a turbomachine, includes: a reinforcing support; a composite fabric including fibres impregnated with polymerised resin, and a track of abradable material. The composite fabric is interposed between the reinforcing support 71 and the track of abradable material and is bonded to the reinforcing support, on the one side, and to the track of abradable material, on the other side. The segment of an abradable ring seal has a resistance to tearing in a direction perpendicular to the interface between the track of abradable material and the composite fabric, on the one hand, and between the composite fabric and the reinforcing support, on the other hand, greater than 5.106 newtons per square meter. A process for the manufacture of such a segment is also described.
    Type: Application
    Filed: June 12, 2014
    Publication date: December 18, 2014
    Applicant: COMPOSITE INDUSTRIE
    Inventors: Karl-Heinz KONIGS, Gerome SONOIS, Philippe MARTIN
  • Publication number: 20140367920
    Abstract: A molded piece 25 of abradable material for use in the manufacture of a segment of an abradable ring seal for a turbomachine includes a mixture of epoxy resin and crosslinking agent. The piece 25 has a curved shape and dimensions adapted to correspond to a receiver provided for that purpose in the inner surface of a casing of a fan of a turbomachine. A process for the manufacture of such a piece is also described.
    Type: Application
    Filed: June 12, 2014
    Publication date: December 18, 2014
    Applicant: COMPOSITE INDUSTRIE
    Inventors: Karl-Heinz KONIGS, Gerome SONOIS, Philippe MARTIN
  • Publication number: 20140353919
    Abstract: An apparatus is disclosed, which may include a first member having a first planar surface, and a first displacing structure. The first displacing structure may have a displacing surface and a latching surface. The apparatus may also include a second member having a second planar surface and a second displacing structure. The second displacing structure may have a displacing surface and a latching surface. A compressible seal may be affixed to the second planar surface. Contact between the displacing surfaces during parallel movement of the first planar surface relative to the second planar surface may create a separation between the planar surfaces greater than the compressible seal height. Positioning of the displacing surfaces past each other during parallel movement of the first planar surface relative to the second planar surface may initiate the compression of the compressible seal between the planar surfaces.
    Type: Application
    Filed: May 31, 2013
    Publication date: December 4, 2014
    Inventors: Jessica R. Eidem, James D. Gerken, David B. Johnson
  • Publication number: 20140341768
    Abstract: A sealing device includes a relatively dimensionally stable, elongated friction and/or wear element and an elastically-deformable elongated sealing element which rests lenghtwise on the friction and/or wear element. The friction and/or wear element encompasses the sealing element at the ends of the friction and/or wear element.
    Type: Application
    Filed: November 29, 2012
    Publication date: November 20, 2014
    Inventors: Thilo Mauser, Andreas Nuetzel
  • Publication number: 20140327212
    Abstract: Fire retardant dryer seals and related methods are provided herein. A fire retardant dryer seal can include an elongate, flexible base substrate having a first end and a second end. The base substrate can also have a first surface and a second surface opposite the first surface. The first end and the second end of the base substrate secured together so that the base substrate forms at least a portion of an annular shape. A heat resistant coating disposed on at least the first surface of the base substrate.
    Type: Application
    Filed: April 1, 2014
    Publication date: November 6, 2014
    Inventors: Vernon J. Lowe, James Justice, Christina D. Viets
  • Publication number: 20140291938
    Abstract: A bellows for a gangway between two hinge-linked vehicles, an aircraft boarding stairs or an aircraft boarding bridge, has several bellows frames in the longitudinal direction of the bellows. The bellows has an at least single-layered reinforcement, which is coated on at least one side with a plastic material. The reinforcement has guides for the bellows frames. The coated reinforcement is tensioned in the circumferential direction of the bellows at least between two bellows frames.
    Type: Application
    Filed: July 4, 2012
    Publication date: October 2, 2014
    Applicant: Hübner GmbH & Co. KG
    Inventors: Claus-Ekkehard Koukal, Reinhard Hübner
  • Patent number: 8842799
    Abstract: A jet pump which can restrain self-excited vibration in a connection portion between an inlet mixer pipe and a diffuser pipe without inhibiting a structural deformation due to thermal expansion and the like includes a slip joint structure connecting the inlet mixer pipe and the diffuser pipe to each other by inserting the inlet mixer pipe into an upper end opening of the diffuser pipe with a clearance left therebetween; and a self vibration damping structure configured such that when the clearance defined by an outer pipe wall of the inlet mixer pipe and an inner pipe wall of the diffuser pipe is widening or narrowing due to vibration of the inlet mixer pipe or the diffuser pipe, a flow path resistance inside a clearance flow path for pumped coolant water defined by the clearance is not smaller than a fluid inertia force all over the clearance flow path.
    Type: Grant
    Filed: April 2, 2010
    Date of Patent: September 23, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Masanobu Watanabe, Kunihiko Kinugasa, Tsuyoshi Hagiwara, Masahiko Warashina, Jun Suzuki
  • Patent number: 8821642
    Abstract: Disclosed herein is a flat panel display (FPD) manufacturing apparatus for performing a desired process for a substrate positioned in a chamber after establishing a vacuum atmosphere in the chamber. The vacuum chamber is divided into a chamber body and an upper cover to ensure easy opening/closing operations of the upper cover.
    Type: Grant
    Filed: November 26, 2008
    Date of Patent: September 2, 2014
    Assignee: Advanced Display Process Engineering Co., Ltd.
    Inventors: Young Jong Lee, Jun Young Choi, Saeng Hyun Jo, Hyun Hwan Ahn, Suk-Min Son, Sung Il Ahn
  • Publication number: 20140238500
    Abstract: An apparatus can include a piston movably disposed within a pressure vessel and defines a first interior region and a second interior region. The piston has a first position in which the first interior contains a gas having a first pressure and has a volume greater than the second interior region, and a second position in which the second interior region contains a gas having a second pressure and has a volume greater than the first interior region. A seal member is attached to the piston and to the pressure vessel. The seal member has a first configuration in which at least a portion of the seal member is disposed at a first position when the piston is in its first position, and a second configuration in which the portion of the seal member is disposed at a second position when the piston is in its second position.
    Type: Application
    Filed: September 27, 2013
    Publication date: August 28, 2014
    Applicant: General Compression, Inc.
    Inventors: Eric D. Ingersoll, Justin A. Aborn, Matthew Blieske, Istvan Hauer
  • Patent number: 8800133
    Abstract: Gas turbine engine systems involving rotor bayonet coverplates and tools for installing such coverplates are provided. In this regard, a representative turbine assembly for a gas turbine engine includes: a turbine disk operative to mount a set of turbine blades; and a coverplate having an annular main body portion and a spaced annular arrangement of tabs extending radially inwardly from the main body portion with open-ended gaps being located between the tabs, the tabs being operative to secure an inner diameter of the coverplate to the turbine disk.
    Type: Grant
    Filed: July 9, 2012
    Date of Patent: August 12, 2014
    Assignee: United Technologies Corporation
    Inventors: Joseph T. Caprario, Daniel J. Griffin
  • Patent number: 8770590
    Abstract: An oil scraper piston ring includes a ring body having two radial outer running webs on the ring body, which are arranged one behind the other in relation to the run direction of the piston and are spaced apart from one another by an external depression. Each running web respectively has two scraper lips and a wear protection coating is provided on each scraper lip.
    Type: Grant
    Filed: November 9, 2010
    Date of Patent: July 8, 2014
    Assignee: Federal-Mogul Burscheid GmbH
    Inventor: Peter Esser
  • Publication number: 20140182205
    Abstract: A rotating heat regenerator is used to recover heat from the syngas at it exits the reactor vessel of a waste or biomass gasifier. In some embodiments, three or more streams are passed through the heat exchanger. One stream is the dirty syngas, which heats the rotating material. A second stream is a cold stream that is heated as it passes through the material. A third stream is a cleaning stream, which serves to remove particulates that are collected on the rotating material as the dirty syngas passes through it. This apparatus can also be used as an auto-heat exchanger, or it can exchange heat between separate flows in the gasifier process. The apparatus can also be used to reduce the heating requirement for the thermal residence chamber (TRC) used downstream from the gasification system.
    Type: Application
    Filed: December 23, 2013
    Publication date: July 3, 2014
    Applicant: INENTEC INC.
    Inventors: Leslie Bromberg, Daniel R. Cohn, Jeffrey E. Surma, James A. Batdorf, David A. Lamar
  • Publication number: 20140186484
    Abstract: A sealing system is provided for a moved metal strip, which includes an elongated inflatable flexible body, a holder, into which the inflatable body is embedded, and an elongated body made of Teflon. The Teflon body is arranged on a side of the inflatable flexible body facing away from the holder and on a side facing away from the inflatable body has a sealing surface to the metal strip. Furthermore, an arrangement and a strip casting installation is provided with a metal strip and a sealing system of this kind.
    Type: Application
    Filed: December 27, 2012
    Publication date: July 3, 2014
    Applicant: Berndorf Band GmbH
    Inventor: Franz Kager
  • Patent number: 8757630
    Abstract: A device for sealing an actuator includes a drive shaft and an elongated body, which move, relatively to each other, along their longitudinal axis, covered by a sleeve, which covers at least partially both the elongated body and the drive shaft, the sleeve having a first portion conformed with the bellows and a second portion having the shape like the elongated body so that it may be fitted on it and blocked at its end, the bellows portion being positioned in correspondence of the shaft and locked on it at its end so that the sleeve is integral with the shaft.
    Type: Grant
    Filed: September 21, 2011
    Date of Patent: June 24, 2014
    Assignee: Ultraflex S.p.A.
    Inventor: Giorgio Gai
  • Publication number: 20140157596
    Abstract: A gage tool (700) for inspecting tolerances of a gas turbine engine seal plate (430) includes a base plate (710) arid a top plate (720). The base plate (710) includes abase opening (712) and a slot (711) with an annular shape sized to receive a seal plate (430). The top plate (720) Includes a top opening (723). The base opening (712) and top opening (723) each provide access to a portion of a seal plate (430) within the gage tool (700). The gage tool (700) also includes a first gage (750) with a probe tip for measuring a variation in an outer interlacing surface (433) of a seal plate (430) and a seal slide gage (740) for measuring a force required to rotate Ore seal plate (430) within the gage tool.
    Type: Application
    Filed: December 12, 2012
    Publication date: June 12, 2014
    Applicant: SOLAR TURBINES INCORPORATED
    Inventors: James Brian Powell, Scott L. Stafford, Luvern John Weber, Terry Toshio Akiyama
  • Publication number: 20140138918
    Abstract: A seal assembly between a rotor and a stator is disclosed. In one embodiment, the seal assembly includes: a rotor; a stator positioned around the rotor; and a plurality of seal leaves positioned between the rotor and the stator, the plurality of seal leaves circumferentially stacked around the rotor to define a seal ring between the rotor and the stator, wherein gaps between adjacent seal leaves are partially filled, such that contact faces and residual gaps are between adjacent seal leaves, wherein the contact faces generate friction to dampen vibrations during operation. Such damping effects still allow the compliant motion of the seal leaves with minimal leaf vibration. Also, thicker and more resilient leaves may be applied with reduced leakage through the root gaps.
    Type: Application
    Filed: November 19, 2012
    Publication date: May 22, 2014
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Yuefeng Luo, William Edward Adis, Hrishikesh Vishvas Deo
  • Patent number: 8702313
    Abstract: A roller bearing assembly includes at least one roller bearing having an outer ring, an inner ring, and roller bodies disposed therebetween, as well as a radial shaft seal ring having a support ring and a seal lip. At least one end side of the outer ring includes a receptacle for retaining the support ring. The support ring extends axially in an outwardly projecting manner beyond the end side of the outer ring and up to an outer circumferential surface of the inner ring. The seal lip connected with the support ring sealingly abuts on the outer circumferential surface of the inner ring at a position that is axially internal of the end side of the outer ring.
    Type: Grant
    Filed: July 29, 2010
    Date of Patent: April 22, 2014
    Assignee: Aktiebolaget SKF
    Inventors: Baozhu Liang, Thomas Peuschel, Michael Reugels, Alfred Schwappach
  • Patent number: 8696204
    Abstract: Two kinds of side seals are assembled by a seal member, a holder plate, and a cover. A base of the seal member is formed in a symmetrical shape with respect to a center line of a thickness direction. The seal member includes recesses formed in both faces of the base in the thickness direction and fitted with a protrusion of the holder plate. A lip of the seal member is inclined in a direction from a first face toward a second face in the thickness direction.
    Type: Grant
    Filed: September 14, 2011
    Date of Patent: April 15, 2014
    Assignee: NSK Ltd.
    Inventor: Kazuaki Ooga
  • Publication number: 20140070495
    Abstract: A seal assembly for sealing at least one negative or positive pressure zone which adjoins a surface which is perforated and moves in a movement direction in a machine for making paper, tissue or cardboard, has at least one sealing element which lies opposite the moving surface and is arranged in a receptacle which can be moved to change the format of the negative or positive pressure zone. In order to simplify the adjustability of the receptacle in order to position the sealing element, there is a signal transmitter which is connected directly or indirectly to the sealing element and the signal of which can be received on that side of the moving surface which faces away from the sealing element.
    Type: Application
    Filed: November 12, 2013
    Publication date: March 13, 2014
    Applicant: VOITH PATENT GMBH
    Inventors: Peer Schotge, Susanne Berger, Klaus Hermann, Andreas Schäfer, Daniel Gronych
  • Patent number: 8657296
    Abstract: A radial shaft seal for a radial shaft is formed with a casing having an exterior-facing surface opposite from an interior-facing surface, and a sleeve positioned radially inwardly of the casing that rotates with respect to the casing. A sealing ring is connected to the casing, and has an extending portion that interacts with the sleeve to form a labyrinth seal barrier.
    Type: Grant
    Filed: July 15, 2013
    Date of Patent: February 25, 2014
    Assignee: Engineered Seal Products, Inc.
    Inventors: Matthew Banowetz, Mark J. Reimer
  • Publication number: 20140035232
    Abstract: A protective cover including a bellows portion wherein a plurality of valleys and peaks are arranged alternately. The valleys include a plurality of large valleys and a plurality of intermediate valleys whose inside and outside diameter dimensions at bottoms are greater than those of the large valleys, and the large valleys and the intermediate valleys are arranged alternately. Small valleys whose inside and outside diameter dimensions at bottoms are greater than those of the intermediate valleys are respectively arranged between the large valleys and the intermediate valleys. The peaks are respectively arranged between the large valleys and the small valleys as well as between the intermediate valleys and the small valleys, and apexes of the peaks have a same outside diameter dimension as one another. The apexes of the peaks are made thinner than the bottoms of the large valleys.
    Type: Application
    Filed: October 4, 2013
    Publication date: February 6, 2014
    Applicant: TOKAI RUBBER INDUSTRIES, LTD.
    Inventors: Hiroyuki MATSUMURA, Yorikazu NAKAMURA
  • Patent number: 8622779
    Abstract: A sealing unit longitudinally comprises first and second sealing sub-units disposed around first and second portions of a driveshaft of a marine propulsion system of a watercraft. The first sealing sub-unit is sealingly connected to a front wall of the hull and the engine casing. The second sealing sub-unit is sealingly connected to the driveshaft and a crankshaft. The second sealing sub-unit is disposed at least partially inside the first sealing sub-unit. An inside of the first sealing sub-unit is in fluid communication with a water intake ramp. An inside of the second sealing sub-unit is in fluid communication with an interior of an engine. The first sealing sub-unit prevents fluid communication between the water intake ramp and a portion of an inside of the hull. The second sealing sub-unit prevents fluid communication between the engine, the inside of the hull, and the water intake ramp.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: January 7, 2014
    Assignee: Bombardier Recreational Products Inc.
    Inventors: Steve Brouillette, Michel Bourret, Charles Normand
  • Publication number: 20140001706
    Abstract: A waterproof rotary mechanism is provided. The mechanism includes a stationary part, a rotary part having a receiver arranged above the stationary part and rotatably supported by the stationary part on a vertical axis as a rotating center thereof, and a clearance forming part fixed to the stationary part and arranged between the stationary part and the receiver. A clearance for suppressing water from entering therein and is formed between the receiver and the clearance forming part.
    Type: Application
    Filed: June 28, 2013
    Publication date: January 2, 2014
    Inventors: Koji Atsumi, Makoto Oda, Tomonori Watanabe, Yoshiki Nakamura, Hiroyuki Inada
  • Publication number: 20130328272
    Abstract: A sealing device for sealing at least one underpressure or overpressure zone adjoining a surface which is moved in a movement direction in a paper, tissue or cardboard machine, includes at least one sealing element which is located opposite the moved surface and has at least one feed channel for a lubricant. In order to considerably decrease the wear of a sealing element uniformly over the entire length thereof, the at least one feed channel ends in a supply channel, which is arranged at the beginning of the sealing element in the movement direction.
    Type: Application
    Filed: August 13, 2013
    Publication date: December 12, 2013
    Applicant: Voith Patent GmbH
    Inventor: Jochen Honold
  • Publication number: 20130313785
    Abstract: The present invention refers to a seal ring for a mechanical seal, comprising: a base body (2) with a diamond layer (3) which is applied to the base body (2) and configured as a sliding surface, wherein the diamond layer (3) has a thickness (D) which is less than or equal to 4 ?m, particularly less than or equal to 3 ?m, particularly less than or equal to 2 ?m, particularly preferably about 1 ?m, and wherein the base body (2) is without fissures or only comprises fissures that have a maximum longitudinal extension (L) on a surface of the base body (2) or in the base body (2) that is less than or equal to 5 ?m.
    Type: Application
    Filed: October 4, 2011
    Publication date: November 28, 2013
    Applicant: EAGLEBURGMANN GERMANY GMBH & CO. KG
    Inventors: Joachim Otschik, Andreas Schrüfer, Dieter Ziegenbein, Rudolf Kollinger, Lothar Schäfer, Markus Höfer, Markus Armgardt
  • Publication number: 20130277916
    Abstract: A seal member which is used in a seal part comprising a molded rubber article produced by vulcanizing a rubber composition comprising, a hydrogenated nitrile rubber (A), carbon black (B), and carbon black (C) and/or carbon fiber (D), wherein carbon black (B) has a DBP oil absorption of 250 to 450 mL/100 g, carbon black (C) has a DBP oil absorption of 200 mL/100 g or less, and carbon fiber (D) has an average fiber length of 0.05 to 2 mm and an average fiber diameter of 5 to 30 ?m; and wherein, based on 100 parts by mass of the hydrogenated nitrile rubber (A), the amount of carbon black (B) is 5 to 15 parts by mass, the total amount of carbon black (C) and/or carbon fiber (D) is 3 to 35 parts by mass, and the total content of the fillers is 40 parts by mass or less.
    Type: Application
    Filed: November 28, 2011
    Publication date: October 24, 2013
    Applicant: Uchiyama Manufacturing Corp.
    Inventors: Kazushi Sakate, Tadashi Kasamoto, Tatsuo Katayama
  • Publication number: 20130251291
    Abstract: The sealing performance by a side seal is improved by changing the sealing function of the side seal for a linear guide apparatus which includes, as constituting components, a seal member, a holder plate that holds the seal member, and a cover (a scraper) depending on its application of the side seal. Plural types of the seal members (1A to 1B) which have a difference in at least any one of the inclination, the material, the thickness, and the tip shape of lips (11a to 11f) are prepared as the seal members. Multiple numbers of the seal members among those seal members are appropriately selected, the same number of the covers and the same number of the holder plates are combined together to assemble the side seal.
    Type: Application
    Filed: October 19, 2011
    Publication date: September 26, 2013
    Applicant: NSK Ltd.
    Inventor: Kazumi Arai
  • Publication number: 20130228976
    Abstract: A 3-D geometric separation of old engine compression-ignition-expansion chamber in compression-ignition chamber and expansion chamber with a parametric delay between ignition and expansion ( and excluding the intake valves and exhaust valves) what to permit a symmetric configuration for a totally rotary engine and a special arrangements(as is revealed in drawings and explained in description) of mechanical and electrical components acting resonant with thermodynamic processes against of internal and external absorption's processes using maximal the caloric energy of a combustible and creating a cyclic thermodynamic parametric resonant loop, process maintained from increasing or decreasing the dynamic pressure and thermo gradient and mechanically mirrored in a increasing or decreasing engine RPM or it's new parameter, the ignition timing delay.
    Type: Application
    Filed: March 5, 2012
    Publication date: September 5, 2013
    Inventor: Ion Murgu
  • Publication number: 20130230388
    Abstract: A compressor having a stator vane assembly having an inner ring and a seal carrier secured thereto, the seal carrier having two opposite seal carrier end faces and the inner ring having two inner ring end faces which face said seal carrier end faces and are received between said seal carrier end faces with an axial gap therebetween, at least one clamping element bearing axially with a first clamping element end face against the inner ring and with a second clamping element end face against the seal carrier and being axially resiliently clamped between the inner ring and the seal carrier. A compressor with a clamping element for radial clamping is also provided.
    Type: Application
    Filed: March 4, 2013
    Publication date: September 5, 2013
    Applicant: MTU Aero Engines GmbH
    Inventors: Juergen Kraus, Felix Kern
  • Publication number: 20130216160
    Abstract: According to the present invention, two kinds of side seals (203A and 203B) are assembled by a seal member (1), a holder plate (2), and a cover (3). A base (12) of the seal member (1) is formed in a symmetrical shape with respect to a center line of a thickness direction. The seal member (1) includes recesses (12a) formed in both faces of the base (12) in the thickness direction and fitted with a protrusion (21) of the holder plate (2). A lip (11) of the seal member (1) is inclined in a direction from a first face (13) toward a second face (14) in the thickness direction.
    Type: Application
    Filed: September 14, 2011
    Publication date: August 22, 2013
    Applicant: NSK Ltd.
    Inventor: Kazuaki Ooga
  • Publication number: 20130209295
    Abstract: A seal for a pump includes a seal housing configured to be received in a housing of the pump and a seal assembly received in the seal housing. The seal further includes a seal holder receiving at least a portion of the seal assembly, the seal holder being configured to rotate with respect to the seal housing. The seal also includes a guide coupled to the seal housing and retaining the seal holder, such that the seal holder rotates with respect to the seal housing, wherein during operation of the pump, the seal holder and a portion of the seal assembly rotate. A pump includes the pump seal, and a method for refurbishing a pump seal includes removing and replacing at least a portion of a seal assembly of the pump seal, wherein refurbishing the pump seal does not require removing a pump shaft from the pump.
    Type: Application
    Filed: August 17, 2011
    Publication date: August 15, 2013
    Inventor: Rolando Nico M. Ramos
  • Patent number: 8500337
    Abstract: A rotating flow diverter has a lubricated sealed bearing assembly for isolating bearing elements from wellbore fluids under pressure. The sealed bearing assembly is supported between an outer bearing housing and an axially rotatable quill. The bearing assembly further has bearing elements with a bearing lubricant under pressure and a seal assembly. The seal assembly has at least one sealing element which comprises a body, the body having an outer peripheral wall, an inner sealing surface having a plurality of sealing lips and an annular cavity, and a loading ring for compressionally fitting within the annular cavity to urge the sealing surface radially inwardly for sealing engagement with tubulars.
    Type: Grant
    Filed: January 16, 2012
    Date of Patent: August 6, 2013
    Inventors: Jim Beauchamp, Jed Wood
  • Publication number: 20130181408
    Abstract: A hybrid seal carrier for establishing a seal between a rotating component and a stationary component substantially surrounding the rotating component includes a first seal element held between forward and aft end plates and adapted to be seated within a first slot formed in the stationary component. A second seal element is seated within a second slot formed in one of the forward or aft end plate; wherein said first seal element comprises a plurality of bristles forming a brush seal; and said second seal element comprises at least one honeycomb seal.
    Type: Application
    Filed: January 13, 2012
    Publication date: July 18, 2013
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Srinivasa Rao Pakkala, John Clisby Blanton, Karimulla Sha Shaik
  • Publication number: 20130167310
    Abstract: Dock leveler sealing systems are disclosed herein. In various embodiments, a dock leveler sealing system can include a bottom seal configured to be attached to an underside of a dock leveler deck and extend transversely thereto, and two side seals configured to be attached to opposite end portions of the bottom seal and extend forwardly therefrom. The side seals can be shaped and sized to effectively seal openings and/or gaps that may exist between the bottom seal, the deck lip, a shipping vehicle, a dock bumper, and/or the building floor.
    Type: Application
    Filed: January 3, 2012
    Publication date: July 4, 2013
    Inventor: William C. Eungard
  • Publication number: 20130156553
    Abstract: A seal for a turbo machine is provided. The seal includes a plurality of honeycomb cells, at least one circumferential groove within the plurality of honeycomb cells, and at least one swirl brake within the at least one groove.
    Type: Application
    Filed: December 20, 2012
    Publication date: June 20, 2013
    Applicant: NUOVO PIGNONE S.P.A.
    Inventor: Nuovo Pignone S.P.A.
  • Publication number: 20130147122
    Abstract: A sealing member for preventing leakage of powder from a rotating body, can prevent escape of powder under low load and with little yarn, which has excellent wear resistance. In the context of a sealing member (1) for preventing leakage of powder (6), a sealing member (1) made up of at least three or more types of woven yarn and formed from woven fabric comprising warp yarn (3a) and weft yarn (3c), the warp yarn (3a) in this sealing member (1) comprising at least two or more types of different yarn diameters (3g) and densities. This is a sealing member (1) for preventing leakage of powder (6) comprising formation of the sealing member (1) from fabric woven in a pattern (2b) of banded and striped appearance (4) having steps (5) due to the difference in diameters and difference in densities of these warp yarns (3a).
    Type: Application
    Filed: May 5, 2010
    Publication date: June 13, 2013
    Applicants: SANWA TECHNO CO., LTD
    Inventors: Susumu Shoji, Kazuro Fukui
  • Publication number: 20130134679
    Abstract: Disclosed is a non-contacting seal arrangement, an electromechanical system having a non-contacting seal arrangement, and a process of fabricating a non-contacting seal arrangement. The non-contacting seal arrangement includes a shape-memory alloy portion, a non-contacting seal, and an ingress gap. The ingress gap is between the non-contacting seal and the shape-memory alloy portion, between a surface of an electromechanical system and the non-contacting seal, or between the surface of the electromechanical system and the shape-memory alloy. An increase in temperature expands the non-contacting seal and the shape-memory alloy portion substantially maintains the ingress gap. The electromechanical system includes a rotating component and a surface extending around at least a portion of the rotating component and forming the ingress gap. The process includes securing the shape-memory alloy portion, securing the non-contacting seal, and forming the ingress gap.
    Type: Application
    Filed: November 30, 2011
    Publication date: May 30, 2013
    Applicant: GENERAL ELECTRIC COMPANY
    Inventor: Praveen Kumar GARLAPATI