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특허 상세정보

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내보내기 페이스북 공유 카카오톡 공유

Gas turbine combustor having multiple burner groups and independently operable pilot fuel injection systems

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F02C-007/26   
미국특허분류(USC) 60/747 ; 60/737 ; 60/039.826
출원번호 US-0846643 (1997-04-30)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Alston & Bird LLP
인용정보 피인용 횟수 : 42  인용 특허 : 12
초록

In a gas turbine combustor of the present invention, a pilot fuel nozzle is composed of at least two systems with different hole diameters, and the fuel flow rate of each system can be controlled independently. Also, even if the operation of main burners is switched in accordance with high or low load, the pilot fuel is selected accordingly. Further, the pilot fuel differential pressure is kept high to effect stable supply of fuel, and stable combustion is maintained.

대표
청구항
▼

[ We claim:] [1.] A gas turbine combustor comprising a plurality of main burners spaced apart about a circumference and arranged around a pilot fuel nozzle, said main burners being divided into at least first and second groups which are operable independently of each other and which occupy different portions of said circumference, said pilot fuel nozzle including first and second systems of pilot holes which are operable independently of each other, said first system comprising a plurality of pilot holes of a first diameter and said second system compris...

이 특허에 인용된 특허 (12)

  1. Keller Jakob (Dottikon CHX) Sattelmayer Thomas (Mandach CHX). Burner arrangement including coaxial swirler with extended vane portions. USP1992045101633.
  2. Clark Jim A. (Jupiter FL). Combustor seal and support. USP1994125373694.
  3. Pillsbury Paul W. (Winter Springs FL) Foss David T. (Winter Park FL). Dual fuel ultra-low NOX combustor. USP1994115359847.
  4. Seto, Stanford P. T.; Stenger, Richard E.. Dual manifold fuel system. USP1991085036657.
  5. Ishibashi Yoji (Hitachi JPX) Inoue Hiroshi (Hitachi JPX) Ohmori Takashi (Hitachi JPX) Hashimoto Takashi (Ushiku JPX) Kato Fumio (Ibaraki JPX) Akatsu Shigeyuki (Hitachi JPX) Arai Akira (Tsukuba JPX) K. Gas turbine combustor. USP1992075127229.
  6. Kuroda Michio (Hitachi JPX) Sato Isao (Hitachi JPX) Ishibashi Yoji (Hitachi JPX) Uchiyama Yoshihiro (Hitachi JPX) Ohmori Takashi (Hitachi JPX) Akatsu Shigeyuki (Hitachi JPX) Kato Fumio (Toukai JPX) S. Gas turbine combustor. USP1990024898001.
  7. Taniguchi Masayuki (Katsuta JPX) Kobayashi Hironobu (Katsuta JPX) Narato Kiyoshi (Ibaraki JPX) Murakami Tadayoshi (Hitachi JPX) Azuhata Shigeru (Hitachi JPX) Kuroda Michio (Hitachi JPX) Hayashi Noriy. Gas turbine combustor and gas turbine generating apparatus. USP1994095349812.
  8. Takahara Takeshi (Yokohama JPX) Kobayashi Tadashi (Chigasaki JPX) Itoh Masao (Yokohama JPX). Gas turbine combustor including a diffusion nozzle assembly with a double cylindrical structure. USP1995095450725.
  9. Amos David J. (Orlando FL). Gas turbine combustor swirl vane arrangement. USP1995035394688.
  10. McWhirter Anthony (Niagara Falls CAX) Colautti Eugenio (Mississauga FL CAX) Amos David J. (Orlando FL). Gas turbine ultra low NOx combustor. USP1994115361586.
  11. Moore George W. (Palm Beach Gardens FL) Carroll Robert G. (Jupiter FL). Segmented zoned fuel injection system for use with a combustor. USP1985024499735.
  12. Borkowicz Richard J. (Ballston Spa NY). Two stage (premixed/diffusion) gas only secondary fuel nozzle. USP1993045199265.

이 특허를 인용한 특허 피인용횟수: 42

  1. Chila, Ronald James; Boardman, Gregory Allen; Westmoreland, James Harold. Air diffuser for a head end of a combustor. USP2017069671112.
  2. Valeev, Almaz; Wu, Chunyang; Zvedenuk, Leonid Borisovich. Annular ring-manifold quaternary fuel distributor. USP2013058438852.
  3. Stoia, Lucas John; Melton, Patrick Benedict; Romig, Bryan Wesley. Combustor and method for supplying fuel to a combustor. USP2015049016039.
  4. Melton, Patrick Benedict; Westmoreland, III, James Harold; Purcell, Timothy. Combustor cap assembly. USP2017049625157.
  5. Melton, Patrick Benedict; Boardman, Gregory Allen; Westmoreland, James Harold. Combustor end cover with fuel plenums. USP2016069366439.
  6. Hughes, Michael John; Berry, Jonathan Dwight; Stewart, Jason Thurman; Valeev, Almaz; Wu, Chunyang. Combustor with a lean pre-nozzle fuel injection system. USP2015038991187.
  7. Toronto, David Kaylor; Kim, Kwanwoo; Khan, Abdul Rafey; Flamand, Luis. Combustor with fuel staggering for flame holding mitigation. USP2016089416974.
  8. Toronto, David Kaylor; Kim, Kwanwoo; Khan, Abdul Rafey; Flamand, Luis. Combustor with fuel staggering for flame holding mitigation. USP2014108863525.
  9. Laster, Walter R.; Bandaru, Ramarao V.. Controlled pilot oxidizer for a gas turbine combustor. USP2010077752850.
  10. Westmoreland, James Harold; Melton, Patrick Benedict. End cover configuration and assembly. USP2016059347668.
  11. Headland, Paul; Noden, Richard. Fuel distributor. USP2015049016601.
  12. Tanaka,Katsunori; Yoshida,Katsuya. Fuel injection nozzle for gas turbine combustor, gas turbine combustor, and gas turbine. USP2007027171813.
  13. Barker, Carl Robert; Johnson, Thomas Edward; Berry, Jonathan Dwight. Fuel injector and support plate. USP2014058733106.
  14. Berry, Jonathan Dwight; Hughes, Michael John; Edwards, Kara Johnston. Fuel injector with premix pilot nozzle. USP20180910072848.
  15. Romig, Bryan Wesley; Ouellet, Dereck Joseph; Stewart, Jason Thurman; Gibson, Michael Christopher. Fuel nozzle assembly including a pilot nozzle. USP2018059982892.
  16. Frederick, Garth Curtis. Fuel nozzle flashback detection. USP2013038397515.
  17. Abd El-Nabi, Bassam Sabry Mohammad; Boardman, Gregory Allen. Fuel nozzle for use in a turbine engine and method of assembly. USP2017069677766.
  18. Boardman, Gregory Allen; Melton, Patrick Benedict; Westmoreland, James Harold; Chila, Ronald James; Crothers, Sarah Lori. Fuel-air mixing system with mixing chambers of various lengths for gas turbine system. USP2017059650959.
  19. Wasif,Samer P.; Schmitz,Udo; Bland,Robert; Jordan,Karsten; Glessner,John Carl; Markovitz,J. Scott; Prade,Bernd; Kargetta,David; Ramier,Stephen; Dahlk,Stefan. Gas turbine can annular combustor. USP2006077080515.
  20. Saitoh, Toshihiko; Ohta, Masataka; Akamatsu, Shinji; Nose, Masakazu. Gas turbine combustor having multiple independently operable burners and staging method thereof. USP2010097797942.
  21. Ryan, William R.. Gas turbine pilot burner and method. USP2003126666029.
  22. Ohta, Masataka; Mandai, Shigemi; Aoyama, Kuniaki; Tanaka, Katsunori; Akamatsu, Shinji; Nakajima, Hisanari; Tachibana, Teruya; Nishida, Koichi; Akizuki, Wataru; Kasai, Yoshikuni; Hashimura, Jyunji. Installation structure of pilot nozzle of combustor. USP2010047694521.
  23. Ramier, Stephen A.; Ryan, William R.. Integral flow sleeve and fuel injector assembly. USP2013088516820.
  24. Amos David J. ; Stokes Mitchell O.. Main stage fuel mixer with premixing transition for dry low No.sub.x (DLN) combustors. USP2000036038861.
  25. Ryan, William R.. Method and system for controlling fuel to a dual stage nozzle. USP2014098820087.
  26. Ziminsky,Willy Steve; Simons,Derrick W.; Fossum,Arthur James. Method for operating a reduced center burner in multi-burner combustor. USP2007027181916.
  27. Skipper, Dorian. Method of controlling a fuel split. USP2016109459008.
  28. Stefan Hoffmann DE; Michael Kessler DE; Germann Scheer DE. Method of operating a gas turbine. USP2002076425239.
  29. Westmoreland, James Harold; Boardman, Gregory Allen; Melton, Patrick Benedict. Micromixing cap assembly. USP2017019534787.
  30. Boardman, Gregory Allen; Melton, Patrick Benedict; Westmoreland, James Harold. Multi-injector micromixing system. USP2017059651259.
  31. Mandai, Shigemi; Matsuura, Masaaki; Saitoh, Keijirou; Tanaka, Katsunori; Akizuki, Wataru. Pilot burner, premixing combustor, and gas turbine. USP2004036701713.
  32. Amos David J. ; Stokes Mitchell O.. Pilot cones for dry low-NO.sub.x combustors. USP2000096122916.
  33. Gibson, Michael Christopher; Ouellet, Dereck Joseph. Premix fuel nozzle assembly. USP20180710030869.
  34. Ziminsky,Willy Steve; Simons,Derrick W.; Fossum,Arthur James. Reduced center burner in multi-burner combustor and method for operating the combustor. USP2007037185494.
  35. McMahan, Kevin Weston; Valeev, Almaz; Wu, Chunyang. Segmented annular ring-manifold quaternary fuel distributor. USP2013048418468.
  36. Stuttaford, Peter; Kojovic, Aleksandar. Swirled diffusion dump combustor. USP2003036530222.
  37. Chila, Ronald James; Melton, Patrick Benedict; Boardman, Gregory Allen; Westmoreland, James Harold. System and method for tube level air flow conditioning. USP2017099765973.
  38. Westmoreland, James Harold; Chila, Ronald James; Boardman, Gregory Allen; Melton, Patrick Benedict. System and method having multi-tube fuel nozzle with multiple fuel injectors. USP2017099759425.
  39. Westmoreland, James Harold; Boardman, Gregory Allen; Melton, Patrick Benedict. System having multi-tube fuel nozzle with floating arrangement of mixing tubes. USP2016129528444.
  40. Ritland, David M.. Turbine engine flow sleeve. USP2013098528340.
  41. Koenig, Michael Herbert; Prade, Bernd. Turbine engine fuel nozzle. USP2004126832481.
  42. Little,David Allen. Turbine engine sequenced combustion. USP2006097107773.

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