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특허 상세정보

Tribologically improved design for variable stator vanes

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F01D-017/16   
미국특허분류(USC) 415/160; 415/229
출원번호 US-0278570 (2002-10-23)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    McNees Wallace &
인용정보 피인용 횟수 : 13  인용 특허 : 39
초록

A bushing and washer forming a bearing assembly at the outer radial end of a stator vane, the outer bearing assembly, and the bearing assembly at the inner radial end of the stator vane, the inner bearing assembly, that facilitate durability, effectiveness and reduced cost. Both the inner and outer bearing assemblies are designed to rotate relative to the vane shaft and the respective mating shroud or case to even out the wear around the circumference of the bushing. When a rotating bushing is used, a flange on the bushing is designed to be positioned on...

대표
청구항

1. A bearing assembly for rotatively positioning a variable vane to an engine casing comprising a bushing wherein a first surface of the bushing contacts a variable vane stem; a second opposed surface of the bushing contacts the engine casing, and, upon installation of the bushing, the bushing rotates relative to the variable vane stem and engine casing.2. The bearing assembly of claim 1 wherein a rotating bushing clearance is sized to effectively minimize air leakage past the bushing over an engine operating regime.3. The bearing assembly of claim 1 whe...

이 특허에 인용된 특허 (39)

  1. Acton Elizabeth (Cambridge GB2) Cargill Alexander M. (Derby GB2) Ross Colin F. (Cambridge GB2) Eatwell Graham P. (Cambridge GB2). Active control of unsteady motion phenomena in turbomachinery. USP1990114967550.
  2. Tameo Robert P. (Peabody MA). Actuating lever for variable stator vanes. USP1987034652208.
  3. Rhyne ; Jr. Hoffman (Benton AL). Agricultural sprayers. USP1993085234165.
  4. Weiler Wolfgang (Dachau DEX) Trappmann Klaus (Dachau DEX). Arrangement for maintaining clearances between a turbine rotor and casing. USP1984044439982.
  5. Kovaleski Stanley K. ; Kovaleski Donald J. ; Craig Colin D.. Balancing a pressure drop across ring seals in gas turbine engines. USP2000106132168.
  6. Nowak Bernard E. (Westlake OH) Reardon Joseph P. (Fairview Park OH). Bearing arrangement having a polyimide graphite-fiber reinforced composite embedded therein. USP1997095664890.
  7. Mack James P. ; Mack Edward J.. Bushing for a jet engine vane. USP2000076086327.
  8. Gonthier Francis L. (Avon FRX) Mariner Bernard (Bombon FRX). Control mechanism for variably settable vanes of a flow straightener in a turbine plant. USP1988094773821.
  9. Armstrong Norman (Newtownards GBX). Ducted fan turbine engine. USP1992085136839.
  10. Kipphut, Christine M.; Pepe, Joseph J.; Schwant, Robin C.. Embrittlement resistant stainless steel alloy. USP1994065320687.
  11. Sato Koji (Yasugi JPX) Ohno Takehiro (Yasugi JPX). Fe-base superalloy. USP1994125370838.
  12. Rumford Kimball J. (Fairfield CT) Hudson George (Great Barrington MA). Gas turbine motor drive. USP1993025184456.
  13. Reynolds ; Jr. Samuel D. (Oviedo FL) Cheruvu Narayana S. (Casselberry FL). Hardfacing technique and improved construction for inlet steam sealing surfaces of steam turbines. USP1989074850794.
  14. Catterfeld Fritz C. (Los Angeles CA) Wong George S. (Los Angeles CA). High-pressure high-temperature coal slurry centrifugal pump and let-down turbine. USP1990014893986.
  15. Weisser German Louis (Reno NV). Hydraulic turbine power generator incorporating axial thrust equalization means. USP1997085659205.
  16. Hines William R. (Cincinnati OH). Industrial gas turbine engine with dual panel variable vane assembly. USP1994015281087.
  17. Marshall Larry A. (Tequesta FL) Lewis David A. (Stuart FL). Integrally cast vane and shroud stator with damper. USP1986114621976.
  18. Kawai Hisataka,JPX ; Kadoya Yoshikuni,JPX ; Takahashi Koji,JPX ; Magoshi Ryotaro,JPX ; Yasumoto Yasuhiko,JPX ; Tsuchiyama Tomohiro,JPX. Material for gas turbine disk. USP2000086106766.
  19. Khalid Syed J. ; Irwin Craig W.. Method and apparatus for use in control of clearances in a gas turbine engine. USP2001086272422.
  20. King Aaron H. ; Lammas Andrew J. ; Connelly John D.. Movable shaft assembly. USP2001016174130.
  21. Kuhlman G. William (Shaker Heights OH) Beaumont Richard A. (Avon Lake OH) Carbaugh Daniel F. (Macedonia OH) Anderson David (Brecksville OH) Farrell Al (West Lake OH) Chakrabarti Amiya K. (Monroeville. Nickel base alloy forged parts. USP1994125374323.
  22. Maurer William C. (Houston TX) McDonald William J. (Houston TX). Pressure balanced bearing assembly for downhole motors. USP1987054665997.
  23. Charbonnel Jean-Louis (Le Mee Sur Seine FRX) Naudet Jacky S. (Bondoufle FRX). Sealing structure for a pivoting blade of a gas turbine. USP1994065324165.
  24. Halberg, Walter. Self-locking nozzle blocks for steam turbines. USP1991085037269.
  25. Dittberner ; Jr. Richard H. (Old Saybrook CT) Freschlin Harry G. (Manchester CT) Kurti Alex (West Hartford CT). Split shroud compressor. USP1988124792277.
  26. Amos Dennis Ray ; Bachman Sallie Ann ; Chen Jianqiang. Stress corrosion resistant rims and discs for steam turbine rotors device and method. USP1998055746579.
  27. Skottegard Peter N.. System for balancing loads on a thrust bearing of a gas turbine engine rotor and process for calibrating control theref. USP1998065760289.
  28. Hagle Michael P. (Mason OH) Wilson Paul S. (Fairfield OH). Thermally actuated vane flow control. USP1993055207558.
  29. Cromer Robert H. (Gloversville NY). Transition piece seal spring for a gas turbine. USP1992065125796.
  30. Hawkins James T.. Trunnion bushing. USP2001016170990.
  31. Knudsen Bruce E. (Cincinnati OH) Corrigan Charles E. (Tempe AZ). Turbine shroud structure. USP1976103986720.
  32. Kisling Douglas L. (Palm Beach Gardens FL) Jones John C. (Jupiter FL). Vane lever arm construction. USP1988084767264.
  33. Mallen Brian D.. Vane pumping machine utilizing invar-class alloys for maximizing operating performance and reducing pollution emissions. USP2000126162034.
  34. Hines William R. (Cincinnati OH). Variable area turbine nozzle for turbine engines. USP1996055517817.
  35. Payling Stephen R.. Variable stator vane assembly. USP1998095807072.
  36. Venkatasubbu Srinivasan (Cincinnati OH) Payling Stephen R. (Fairfield OH). Variable stator vane assembly for an axial flow compressor of a gas turbine engine. USP1994055308226.
  37. Langston Todd A. (Chandler AZ). Variable stator vane linkage system and method. USP1996085549448.
  38. Venkatasubbu Srinivasan (Cincinnati OH) Eschenbach Jeffrey J. (Ft. Mitchell KY) Waymeyer Stephen J. (Batavia OH) Lampsat Bruno G. (Cincinnati OH). Variable stator vane mounting and vane actuation system for an axial flow compressor of a gas turbine engine. USP1997015593275.
  39. Cromer Robert H. ; Potter Kenneth B.. Wear reduction kit for gas turbine combustors. USP1998055749218.

이 특허를 인용한 특허 피인용횟수: 13

  1. Hoke, James B.; Kirsopp, Philip J.. Combustor turbine interface for a gas turbine engine. USP2017059650903.
  2. Cottrell, Brian; Zalewski, George Jerzy; Kroeger, James. Gas turbine engine rotor tip clearance and shaft dynamics system and method. USP2014048702377.
  3. Major, Daniel W.; Ditomasso, John C.; Champion, Nathan F.. Inner diameter shroud assembly for variable inlet guide vane structure in a gas turbine engine. USP2012128328512.
  4. Major, Daniel W.; Ditomasso, John C.; Champion, Nathan F.. Inner diameter shroud assembly for variable inlet guide vane structure in a gas turbine engine. USP2015028951010.
  5. Stiehler, Frank. Inner ring for forming a guide blade ring, and guide blade ring and turbomachine. USP2018059970314.
  6. Collopy, Gary; Feulner, Matthew R.. Low pressure compressor variable vane control for two-spool turbofan or turboprop engine. USP20190110167783.
  7. Stiehler, Frank. Turbo compressor in an axial type of construction. USP2013028376692.
  8. Osborne, Christopher; Hart, Adam Nicholas. Vane arm with inclined retention slot. USP20180710018069.
  9. Schilling, Jan Christopher. Variable vane assembly for a gas turbine engine having an incrementally rotatable bushing. USP2013088517661.
  10. Dube, David P.; Hayford, Richard K.. Variable vane damping assembly. USP2016089410443.
  11. Dube, David P.; Feigleson, Steven J.; Hayford, Richard K.. Variable vane having body formed of first material and trunnion formed of second material. USP2016019228438.
  12. Dube, David P.; Hayford, Richard K.. Variable vane inner platform damping. USP2016059334751.
  13. Bruce,Robert William; Schell,Jerry Donald. Wear resistant variable stator vane assemblies. USP2007057220098.