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특허 상세정보

MyON담기
내보내기 페이스북 공유 카카오톡 공유

Leaf seal for gas turbine stator shrouds and a nozzle band

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F10D-011/08   
미국특허분류(USC) 415/1733; 415/135; 415/139; 415/1731; 415/1742; 415/2092; 277/630; 277/631; 277/637; 277/644
출원번호 US-0571814 (2000-05-16)
발명자 / 주소
  • Steven Sebastian Burdgick
  • Brendan Francis Sexton
출원인 / 주소
  • General Electric Company
대리인 / 주소
    Nixon & Vanderhte
인용정보 피인용 횟수 : 42  인용 특허 : 15
초록
▼

A leaf seal assembly is secured to the trailing edge of a shroud segment for sealing between the shroud segment and the leading edge side wall of a nozzle outer band. The leaf seal includes a circumferentially elongated seal plate biased by a pair of spring clips disposed in a groove along the trailing edge of the shroud segment to maintain the seal plate in engagement with the flange on the leading edge side wall of the nozzle outer band. The leaf seal plate and spring clips receive pins tack-welded to the shroud segment to secure the leaf seal assembly...

대표
청구항
▼

1. A seal for sealing between a stator shroud and a nozzle of a multi-stage gas turbine to substantially preclude leakage between a pressurized cavity on one side of the seal and hot gases in a hot gas path of the gas turbine on the other side of the seal, comprising:a shroud segment having a surface for, in part, defining the hot gas path through one stage and overlying tips of buckets of said one stage forming part of a turbine rotor; said shroud segment having a leading edge and a trailing edge; an outer band for, in part, defining the hot gas path th...

인용문헌 (15)

  1. Glynn Christopher C. (Hamilton OH) Walker Roger C. (Middletown OH), Compressor rotor cross shank leak seal for axial dovetails.
  2. Kane Daniel E. (Tolland CT) Haddad Donald E. (Amston CT), Coolable outer air seal assembly for a gas turbine engine.
  3. Birch Kenneth W. (Derby GB2), Gas turbine engine blade shroud assembly.
  4. Bromann Alain Marc Lucien,FRX ; de Verduzan Leopold Jean Marie,FRX ; Marey Daniel Jean,FRX, High-pressure turbine stator ring for a turbine engine.
  5. Burdgick Steven Sebastian, Impingement cooling for the shroud of a gas turbine.
  6. Ress Robert Anthony ; Davis Brian Michael, Interstage van seal apparatus.
  7. Proctor Robert (West Chester OH) Linger David R. (Cincinnati OH) Di Salle David A. (West Chester OH) Brassfield Steven R. (Cincinnati OH) Plemmons Larry W. (Fairfield OH), Isolated turbine shroud.
  8. Drerup Vincent M. (Cincinnati OH) Hess John R. (Westchester OH) Plemmons Larry W. (Fairfield OH), Leaf seals.
  9. Bouchard Guy,CAX, Seal assembly for a gas turbine engine.
  10. Brodell Robert F. (Brattleboro VT) Johnson Robert A. (Glastonbury CT) Holmes Trent H. (Rocky Hill CT), Seal structure for an axial flow rotary machine.
  11. DeTolla Francis L. (Vernon CT) Chaplin Gary F. (Vernon CT), Temperature actuated turbine seal.
  12. Guest John Derek,GBX ITX SL6 2EX, Tube coupling bodies.
  13. Frost Wilson ; Staker John R. ; Starkweather John H., Turbine flowpath seal.
  14. Frost Wilson, Turbine nozzle interface seal and methods.
  15. Benoist Josette (Le Mee S/Seine FRX) Martyez Paul (Montgeron FRX) Taillant Jean-Claude Christian (Vaux Le Penil FRX), Unsectored, one piece distributor of a turbojet turbine stator.

이 특허를 인용한 특허 (42)

  1. Diakunchak, Ihor S., Airfoil seal system for gas turbine engine.
  2. Paprotna, Hubertus E.; Morrision, Michael J., Biased wear resistant turbine seal assembly.
  3. Ohri, Rajeev; Boonsuan, Plum, Combustor spring clip seal system.
  4. Moraines, Christophe-Olivier; Pardo, Frederic Philippe Jean-Jacques, Device for supporting a turbine ring, turbine having such a device, and turbine engine having such a turbine.
  5. Wunderlich, Thomas; Vogt, Hans-Frieder, Door seal for a turbomachine.
  6. Fuller,Jason; Itzel,Gary; Chiurato,Cathy; Findlay,Matthew, Film cooling for the trailing edge of a steam cooled nozzle.
  7. Gibson, Nathan Evan McCurdy; Bidkar, Rahul Anil; Thatte, Azam Mihir; Shastry, Narayana; Manickavasagam Sarojini, Hariharan, Flexible film-riding seal.
  8. Down, Andrew, Gas turbine comprising a heat shield and method of operation.
  9. Mcgarrah, Craig R., Gas turbine engine seal assembly.
  10. Durocher,Eric; Jutras,Martin, Gas turbine engine shroud sealing arrangement.
  11. Treat, Christopher; Stenman, Christina A., Gas turbine exhaust nozzle divergent flap seal.
  12. Pula, John; Narcus, Andrew R., Gas turbine ring segment cooling apparatus.
  13. Little, David A.; Johnson, Clifford E., Impingement cooling arrangement having a snap-in plate.
  14. Adavikolanu, Siva Ram Surya Sanyasi; Patil, Ajay Gangadhar; Das, Debdulal; Singh, Richa, Impingement plate for damping and cooling shroud assembly inter segment seals.
  15. Ugarte, Johnnattan Tennessee; Senile, Darrell Glenn; Srinivas, Mullahalli Venkataramaniah; Farmer, Jonathon; Quill, Hugh, Leaf seal reach over spring with retention mechanism.
  16. Shapiro, Jason David, Method and system for a ceramic matrix composite shroud hanger assembly.
  17. Franks, Michael John; Shapiro, Jason David; Rulli, Samuel Ross; Doughty, Roger Lee, Mounting apparatus for low-ductility turbine shroud.
  18. Smed, Jan P., Multidirectional turbine shim seal.
  19. Morgan, Victor John, Reducing inter-seal gap in gas turbine.
  20. Nigmatulin,Tagir Robert, Resilient seal on trailing edge of turbine inner shroud and method for shroud post impingement cavity sealing.
  21. Melton, Patrick Benedict; Cihlar, David William, Seal assembly for gas turbine.
  22. Aksit, Mahmut Faruk; Safi, Ahmad; Mohammed-Fakir, Abdul-Azeez; Vedantam, Srikanth; Fang, Ning; Goetze, Gayle Hobbs; Arness, Brian Peter; Greene, John Ellington; Chi, Wei-Ming, Seal for gas turbine nozzle and shroud interface.
  23. Lee, Ching-Pang; Laurello, Vincent P.; Prakash, Chander; Tham, Kok-Mun, Seal including flexible seal strips.
  24. Hazevis, Philippe Gérard Marie; Lescure, Xavier Firmin Camille Jean; Massot, Aurélien René-Pierre; Soupizon, Jean-Luc, Sealing a rotor ring in a turbine stage.
  25. Murphy, John Thomas; Burdgick, Steven Sebastian, Sealing of steam turbine bucket hook leakages using a braided rope seal.
  26. Murphy, John Thomas; Burdgick, Steven Sebastian, Sealing of steam turbine nozzle hook leakages using a braided rope seal.
  27. Matsuda, Yoshihiro; Kobayashi, Masayoshi; Yoshimura, Takanobu; Miyamoto, Hiroaki, Sealing structure for combustor liner.
  28. Bucknell, John Wentworth, Seals for hydraulic assemblies.
  29. Eastman, John Alan; Itzel, Gary Michael; Malinowski, Charles; Morgan, Victor; Johns, David Richard; Lewis, Bryan, Shroud configuration having sloped seal.
  30. Nigmatulin, Tagir Robert; Bulgrin, Charles Alan; Kellock, Iain Robertson; Bruner, Ralph Chris, Shroud for a turbomachine.
  31. Major, Daniel W.; Speers, William J., Single channel inner diameter shroud with lightweight inner core.
  32. Davis, Timothy M.; Lutjen, Paul M., Sliding seal.
  33. Lutjen, Paul M.; Drake, Jeremy; Davis, Timothy M., Sliding seal.
  34. McMahan, Kevin Weston; Demiroglu, Mehmet; Repikov, Timur Rustamovich, Spring loaded seal assembly for turbines.
  35. Mohammed-Fakir, Abdul-Azeez; Aksit, Mahmut Faruk; Safi, Ahmad; Vedantam, Srikanth; Fang, Ning, Supplemental seal for the chordal hinge seals in a gas turbine.
  36. Clive A. Morgan ; Todd S. Heffron ; Eric J. Wienholts ; Robert I. Ackerman ; John P. Heyward, Turbine leaf seal mounting with headless pins.
  37. Durocher,Eric; Clermont,Martin, Turbine shroud segment feather seal located in radial shroud legs.
  38. Parker, David M., Turbine spring clip seal.
  39. Parker,David Marchant; Ryan,William Richard, Turbine spring clip seal.
  40. Thompson, Jeff, Turbine stage one shroud configuration and method for service enhancement.
  41. Feldmann, Manfred; Kirchner, Daniel, Turbomachine having a seal device.
  42. Lejars, Claude; Mesic, Marica; Pontoizeau, Bruce; Roy, Alexandre; Suet, Patrice, Turboshaft engine comprising two subassemblies assembled under axial stress.

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