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Air bearing for use as a seal

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F16C-033/74    F16J-015/34    F16C-032/06    F16C-011/06   
미국특허분류(USC) 384/138; 277/358
출원번호 US-0733806 (2013-01-03)
등록번호 US-8753014 (2014-06-17)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Volpe and Koenig P.C.
인용정보 피인용 횟수 : 5  인용 특허 : 43
초록

In order to effect a seal; a porous material which comprises one side of two opposing surfaces is used to restrict and evenly distribute externally pressurized gas, liquid, steam, etc. between the two surfaces, exerting a force which is opposite the forces from pressure differences or springs trying to close the two faces together and so may create a non contact seal that is more stable and reliable than hydrodynamic seals currently in use.

대표
청구항
▼

1. An aerostatic or hydrostatic bearing seal assembly comprising: a rotatable shaft with a runner coupled to the rotatable shaft;a housing located concentric to the shaft and defining a cavity;an annular seal body coupled to the housing;a primary ring coupled to the annular seal, the primary ring including a porous media positioned over a plenum and a port connected to the plenum,the seal body includes a conductive passage for communicating pressurized fluid to the plenum through the port of the primary ring,the plenum and the porous media distributes th...

이 특허에 인용된 특허 (43)

  1. Sharpless Ronald Bryan ; Brunnett William Charles. Aerostatic CT suspension. USP2001086276145.
  2. Heinzl Joachim (Dreisesselbergstr. 16 D-81549 Munich DEX) Muth Michael (Wichernweg 12 D-81737 Munich DEX) Schulz Bernd (Albrecht-Durer-Str. 56b D-85579 Neubigerg DEX). Aerostatic bearing and method of manufacturing an aerostatic bearing. USP1997075645354.
  3. Ronald Bryan Sharpless ; William Charles Brunnett. Aerostatic rotor bearing. USP2002066404845.
  4. Bak Michael J.. Air bearing. USP2000026024491.
  5. Powers Harold C. (Peoria IL). Air bearing seal with bellows mounting means. USP1977054021050.
  6. Booth ; Rex. Air bearing vacuum seal assembly. USP1978104118042.
  7. Minoda Mitsuhiro (Tokyo JPX) Inoue Shigeo (Tama JPX) Usui Hiroshi (Akigawa JPX) Nouse Hiroyuki (Tokyo JPX). Air sealed turbine blades. USP1988034732531.
  8. Harris Bernard ; Bozych Dennis E. ; Scholbe Jeffrey R.. Bearing assembly with spherical bearing surfaces. USP1999126004037.
  9. Orlowski David C. ; Hoehle Neil. Bearing isolator with air purge. USP2000056062568.
  10. Chitren,Elizabeth. Bearing isolator with porous seal. USP2008127461846.
  11. Hideo Ozawa JP; Hiroshi Tsuji JP; Hirotsugu Tomita JP. Bearing material for porous hydrostatic gas bearing and porous hydrostatic gas bearing using the same. USP2002016342306.
  12. Tomita, Hirotsugu; Kumagai, Naofumi. Bearing material for porous hydrostatic gas bearing and porous hydrostatic gas bearing using the same. USP2005036872002.
  13. Okano Hiroshi (Mishima JPX). Bearing of a turbomachine. USP1982104355850.
  14. Waskiewicz Walter P. (Bristol CT) McLarty Daniel R. (Burlington CT). Bearing with a seal-thrust withstanding member. USP1996045509737.
  15. Tittizer Gabriel (Rsrath-Hoffnungstal DEX) Junghans Ewald (Bergisch Gladbach DEX) Bestenreiner Georg (Rsrath DEX) Dahm Christian (Cologne DEX). Double-conical static pressure-type gas bearing. USP1987124710034.
  16. Dröscher, Peter; Sattler, Michael; Hamelink, Gerard; Lederer, Günther. Dual seal assembly. USP2010117823885.
  17. Bjerk Roger O. (Edelstein IL). Dynamic air bearing seal - radially and axially stabilized. USP1977104053162.
  18. Orlowski David C.. Emission seal. USP1999025865441.
  19. Pope Adam N. (Cincinnati OH). Gas bearing sealing means. USP1994025284347.
  20. Wasser James R. ; Volden Douglas J. ; Netzel James P.. Gas lubricated barrier seal. USP1998025713576.
  21. Klaass, Reinhard M.; Takeuchi, Donald I.; Schenk, Bjoern. Gearless/oilless gas turbine engine. USP2005046881027.
  22. Koplow, Jeffrey P.. Heat exchanger device and method for heat removal or transfer. USP2012078228675.
  23. Ide Russell D. ; Zeidan Fouad Y.. Hydrostatic and active control movable pad bearing. USP1998045743654.
  24. Heinen Manfred (Rees DEX). Hydrostatic and hydrodynamic seal for rotating a rotating shaft. USP1986094613141.
  25. Buckmann Paul S. (Roseville CA). Hydrostatic rotor bearing having a pivoted pad. USP1994115360273.
  26. Catterfeld Fritz C. (Canoga Park CA). Hydrostatic seal for centrifugal pumps. USP1980044199152.
  27. Varney, James M.; Cunkelman, Brian L.; Goettel, Walter E.. Locomotive air compressor with an electric motor supported by an external bearing. USP2003126659739.
  28. Brunnett,William C.. Mechanical damper for air pad instability. USP2006047023952.
  29. Devitt, Andrew J.. Method and apparatus for in-line processing and immediately sequential or simultaneous processing of flat and flexible substrates through viscous shear in thin cross section gaps for the manufacture of micro-electronic circuits or displays. USP2012028123868.
  30. Ide Russell D. (28 Daniel Dr. Coventry RI 02816). Multi-deflection pad-type hydrodynamic bearing. USP1987064676668.
  31. Partus Fred P. (Atlanta GA). Non-contacting seal for treating chamber through which elongated material is moved. USP1979114174842.
  32. Otfinoski William F. (Meriden CT) Eaton Harry E. (Woodstock CT) Novak Richard C. (Glastonbury CT). Porous metal abradable seal material. USP1987054664973.
  33. Satoshi Kumamoto JP; Kuniharu Kawakami JP; Keisuke Uchida JP. Process for manufacturing a hydrostatic bearing of porous material. USP2002016342270.
  34. Karl E. Uth. Rotary barrier face seal. USP2002126494460.
  35. Logan Clinton M. (Pleasanton CA) Garibaldi Jack L. (Livermore CA). Rotatable seal assembly. USP1982114361332.
  36. Nosowicz Josef (Richard-Wagner-Strasse 1 D-8192 Geretsried DEX) Kollinger Rudolf (Richard-Wagner-Strasse 10 D-8034 Germering DEX). Seal. USP1991105058905.
  37. Nosowicz Josef,DEX ; Riedl Michael,DEX ; Kollinger Rudolf,DEX. Seal arrangement. USP1998035722671.
  38. Orlowski, David C.; Hoelhe, Neil F.. Shaft seal assembly. USP2009127631878.
  39. Orlowski,David C.; Hoelhe,Neil F.. Shaft seal assembly. USP2008077396017.
  40. Smith Robert S. (1263 Emory St. San Jose CA 95126). Slip ring air bearing. USP1990054927274.
  41. Yokomatsu Takao (Yokohama JPX) Furukawa Motomu (Kawasaki JPX). Static pressure bearing. USP1988064749283.
  42. Ohta Jiro (Tokyo JPX) Tozawa Sadamu (Ushiku JPX) Matsushita Koichi (Chiba JPX) Maruyama Yutaka (Kawasaki JPX). Static pressure gas bearing assembly. USP1989064838710.
  43. Ryding, Geoffrey; Smick, Theodore H.; Farley, Marvin; Sakase, Takao. Vacuum bearing structure and a method of supporting a movable member. USP2003026515288.

이 특허를 인용한 특허 피인용횟수: 5

  1. Rodriguez Erdmenger, Rodrigo; Wolfe, Christopher Edward; Michelassi, Vittorio; Nguyen Tran, Quang Tue; Gibson, Nathan Evan McCurdy. Gas bearing and an associated method thereof. USP2017099771977.
  2. Gu, Fahua; Yuan, Peng; Song, Jiejie; Ji, Weixing. Method for increasing load capacity on a porous aerostatic bearing with a two-phase fluid. USP2017109784312.
  3. Devitt, Andrew J.. Porous media ventless seal. USP20180710030666.
  4. Devitt, Andrew J.. Thrust bearing as a seal. USP20181010100932.
  5. Holowczak, John E.; Holley, Brian M.. Variable vane systems. USP20190310227888.

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