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특허 상세정보

Hydrodynamic face seal with grooved sealing dam for zero-leakage

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F16J-015/34   
미국특허분류(USC) 277/367; 277/369; 277/400
출원번호 US-0655810 (2000-09-06)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Flynn, Thiel, Boutell & Tanis, P.C.
인용정보 피인용 횟수 : 34  인용 특허 : 20

A mechanical face seal includes a pair of relatively rotatable seal rings having opposing seal faces which define a sealing region therebetween. The sealing region extends radially between the inside and outside diameters of the seal rings to seal a fluid in a sealing chamber near one diameter thereof. The seal faces are provided with hydrodynamic lift features near the sealing chamber to provide a lift load that permits a liquid between the seal faces to form a fluid film therebetween. The hydrodynamic lift features primarily function to hydrodynamicall...


1. In a mechanical seal for sealing an annular sealing space between a housing and an axially-elongate rotatable shaft, said mechanical seal including a first seal ring mounted non-rotatably to said housing and a second seal ring rotatably connected to said shaft so as to rotate therewith, at least one of said first and second seal rings being axially movable relative to the other of said first and second seal rings and having a biasing arrangement which biases said one seal ring axially toward the other, said first and second seal rings having opposing ...

이 특허에 인용된 특허 (20)

  1. Kulkarni Sunil B. (Portage MI) Dingman Randy R. (Schoolcraft MI). Double gas barrier seal. USP1996035498007.
  2. Lipschitz Abraham (Warwick RI). Drained face seal. USP1992075133562.
  3. Filippov Andrei N. (Moscow SUX) Nechaev Alexandr N. (Moscow SUX) Sokolsky Vladimir I. (Moscow SUX). End-type seal. USP1979034142731.
  4. Sedy Josef (Mount Prospect IL). Face seal with angled grooves and shallow annular groove. USP1997125702110.
  5. Lai Wei-Tang (Hoffman Estates IL). Face seal with double spiral grooves. USP1993045201531.
  6. Lahrman Kenneth A. (Maineville OH). Fluid bearing face seal for gas turbine engines. USP1992125174584.
  7. Salant Richard F. (Arlington Heights IL) Boyd Clinton A. (Tulsa OK). Grooved mechanical face seal. USP1985014491331.
  8. Marsi Joseph A. (Rancho Palos Verdes CA) Wiese Winfred J. (Whittier CA) Takumi Lawrence I. (Carson CA) Boster Clark S. (Whittier CA) Vaghasia Gordhan K. (Cerritos CA) Ellison Jerel E. (Downey CA) Col. Mechanical seal. USP1986054586719.
  9. Wiese Winfred J. (Whittier CA). Mechanical seal with pressurized lubrication pockets. USP1976053957276.
  10. Young Lionel A.. Method for forming a wavy face ring. USP1998115833518.
  11. Werner Linus (Neuss DEX). Method for the removal of a surface layer by a laser beam. USP1997105681395.
  12. Ide Russell D. (P.O. Box 744 Coventry RI 02816). Non-contacting mechanical face seal of the gap-type. USP1995015385409.
  13. Kotzur Joachim (Oberhausen DEX) Reinersmann Hans H. (Essen DEX) Albers Rolf (Oberhausen DEX) Aschenbruck Emil (Duisburg DEX) Neuhaus Gnter (Oberhausen DEX). Shaft seal with positively magnetically controlled sealing gap. USP1984054447063.
  14. Azibert Henri V. ; Ruan Bo ; Wu Shifeng ; Clark Marlen S.. Split mechanical face seal. USP2000106131912.
  15. Holder Mark C. (Mohnton PA). Stationary seal ring assembly for use in dry gas face seal assemblies. USP1992085137284.
  16. Nylykke ; Hans Peter Glud. Stuffing box backstop ring. USP1978074099729.
  17. Borrino Thomas (Glendale Heights IL) Kruszynski Michaeline G. (LaGrange Park IL) Watanuki Gary G. (Wheeling IL) Kozlowski Daniel N. (Naperville IL). Tandem seal arrangement for mechanical face seals. USP1996065529315.
  18. Young Lionel A.. Wavy face ring. USP1999095947481.
  19. Lebeck Alan O. (Albuquerque NM) Young Lionel A. (Edgewood NM). Wavy-tilt-dam seal ring. USP1989064836561.
  20. Lebeck Alan O. (Albuquerque NM) Young Lionel A. (Edgewood NM). Wavy-tilt-dam seal ring and apparatus for shaping seal rings. USP1989124887395.

이 특허를 인용한 특허 피인용횟수: 34

  1. Garrison, Glenn M.. Air riding seal. USP2014028657297.
  2. Dardalis,Dimitrios. Apparatus and method for rotating sleeve engine hydrodynamic seal. USP2006027004119.
  3. Sha, Shaik Karimulla; Zheng, Xiaoqing; Thatte, Azam Mihir. Apparatus and systems for sealing a rotary machine using a self-cleaning face seal. USP2015089109459.
  4. Munson, John. Circumferential sealing arrangement. USP2014028657573.
  5. Thatte, Azam Mihir; Bidkar, Rahul Anil; Zheng, Xiaoqing. Face seal with locally compliant hydrodynamic pads. USP2017049611749.
  6. O'Brien, Michael. Fluid transfer seal assemblies, fluid transfer systems, and methods for transferring process fluid between stationary and rotating components using the same. USP2017109790863.
  7. Duffy, Kevin; Kovacik, Ronald K.; Walker, Brady; Artiles, Antonio F.. Hydrodynamic carbon face seal pressure booster. USP2018039909438.
  8. Villeneuve, Michel Laurent; Zheng, Xiaoqing. Hydrodynamic magnetic seal. USP2013078474826.
  9. Kiernan, Gregory Thomas. Hydrodynamic mating ring with integrated groove inlet pressure control. USP2017079714712.
  10. Flaherty, Andrew L.. Hydrodynamic seal with circumferentially varying lift force. USP2012048162322.
  11. Hooper,Michael E.. Hydrostatic mechanical seal with local pressurization of seal interface. USP2008067389832.
  12. Thatte, Azam Mihir; Sha, Karimulla Shaik; Bidkar, Rahul Anil; Zheng, Xiaoqing. Individually compliant segments for split ring hydrodynamic face seal. USP2017019534502.
  13. Labb?,Michel; Gekht,Eugene. Integrated labyrinth and carbon seal. USP2007027175388.
  14. Young, Lionel. Laser surface treatment for mechanical seal faces. USP2012088250757.
  15. Davis, Todd A.. Liftoff carbon seal. USP2014078777229.
  16. Lattin, Robert Michael. Mechanical face seal. USP2016059353865.
  17. Ferris, Jason; Jacobs, Larry; Gray, Christopher. Mechanical face seal with a reverse trapezoidal face pattern. USP2017029574666.
  18. Lai,Wei Tang. Mechanical seal ring assembly with hydrodynamic pumping mechanism. USP2008057377518.
  19. Zagres,David P.. Seal staging system. USP2007117300060.
  20. Moller, Craig; Grobler, Werner Hendrik; Hamid, Jake. Sealing mechanism for a vacuum heat treating furnace. USP2015038992213.
  21. Kang, Dong-Gu. Sealing member for master cylinder. USP2015129216722.
  22. Inoue, Hideyuki; Hosoe, Takeshi; Negishi, Yuta; Tokunaga, Yuichiro. Sliding component. USP20181010113648.
  23. Inoue, Hideyuki; Hosoe, Takeshi; Negishi, Yuta; Tokunaga, Yuichiro. Sliding component. USP20180910072759.
  24. Inoue, Hideyuki; Hosoe, Takeshi; Negishi, Yuta; Tokunaga, Yuichiro. Sliding component. USP2018049951873.
  25. Itadani, Masatoshi. Sliding component. USP2015109151389.
  26. Itadani, Masatoshi; Tokunaga, Yuichiro; Sunagawa, Kazumasa; Katori, Hikaru. Sliding component. USP2017049611938.
  27. Itadani, Masatoshi; Tokunaga, Yuichiro; Sunagawa, Kazumasa; Katori, Hikaru. Sliding component. USP2017119829109.
  28. Itadani, Masatoshi; Tokunaga, Yuichiro; Sunagawa, Kazumasa; Katori, Hikaru. Sliding component. USP2017039587745.
  29. Hosoe, Takeshi; Inoue, Hideyuki. Sliding parts. USP2016099447884.
  30. Itadani, Masatoshi. Sliding parts. USP2017129845886.
  31. Itadani, Masatoshi; Sunagawa, Kazumasa. Sliding parts. USP2017069677670.
  32. Rickert, Ronald P.. Tandem seal arrangement with reverse flow secondary seal. USP2012118313281.
  33. Young, Lionel A.; Benedict, Joshua K.; Davis, John. Tapered channel macro/micro feature for mechanical face seals. USP2016079383017.
  34. Turnquist,Norman Arnold; Kowalczyk,Mark William; Ghasripoor,Farshad. Use of spray coatings to achieve non-uniform seal clearances in turbomachinery. USP2007087255929.