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특허 상세정보

Inlet guide vane bleed system

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F02K-003/06   
미국특허분류(USC) 60/226R ; 60/269 ; 415/119 ; 415/145
출원번호 US-0754138 (1976-12-27)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 24  인용 특허 : 0

This invention is an improvement to a turbofan engine intended to reduce fan noise caused by the interaction of the rotor with secondary flow generated by the inlet guide vanes. A portion of the air flowing through the engine is removed from the fan duct from a region between the inlet guide vanes and the rotor and near the outer periphery of the fan duct by a system of bleed ducts. The ducts have one or more openings in the fan casing. The system may also include means for controlling the flow through the bleed ducts and means for injecting high energy ...


In combination with a gas turbine engine of the type commonly known as a turbofan including an annular nacelle having an inner wall which forms a fan duct for the passage of air through the engine, a rotor having a plurality of radially oriented, circumferentially spaced blades and a set of radially oriented inlet guide vanes disposed within said fan duct forward of said rotor, the improvement comprising: means foR removing a portion of said air from said fan duct downstream of said inlet guide vanes but upstream of said rotor, said means including a ble...

이 특허를 인용한 특허 피인용횟수: 24

  1. Andersson Anders O. (Seattle WA). Active control of tone noise in engine ducts. USP1997125692702.
  2. Wagner, Joel H.; Magge, Shankar S.; Santeler, Keith A.. Centrifugal compressor with bleed flow splitter for a gas turbine engine. USP2015018935926.
  3. Mason, Jeffrey Lee; Sieg, Daniel Alexander; Gutierrez, Carlos Eduardo; Glessner, John Carl; Lawless, Charles Steve. Compact high-pressure exhaust muffling devices. USP2013048430202.
  4. Robert A. Ress, Jr. ; Jeffrey L. Hansen. Compressor endwall bleed system. USP2002086428271.
  5. Lair, Jean-Pierre. Confluent exhaust nozzle. USP2005126971229.
  6. Kniat John (Glastonbury CT) Kuhlberg Joel F. (New Hartford CT) Mickey Daniel A. (Broad Brook CT). Cooling means. USP1985034504030.
  7. Dravet, Alain; Julliard, Jacques Michel Albert; Loheac, Pierre Philippe Marie. Device for reducing noise from jet-pylon interactions on jet engines. USP2015038991749.
  8. Seiichirou Takeshita JP. Fan device and shroud. USP2002056390770.
  9. Lawlor,Shawn P.; Novaresi,Mark A.; Cornelius,Charles C.. Gas turbine power plant with supersonic shock compression ramps. USP2008107434400.
  10. Haugen, Christina Granger Morrissey; Klasing, Kevin Samuel; Potokar, Christopher Jon; Proctor, Robert. High bleed flow muffling system. USP2013088511096.
  11. Klasing, Kevin Samuel; Fintel, Bradley Willis; Glessner, John Carl; Mason, Jeffrey Lee; Potokar, Christopher Jon; Proctor, Robert. High pressure drop muffling system. USP2012118307943.
  12. Potokar, Christopher Jon. High pressure muffling devices. USP2013108550208.
  13. Breeze-Stringfellow Andrew ; Szucs Peter N. ; Wood Peter J.. High recovery multi-use bleed. USP2001126325595.
  14. Cloft, Thomas G.; Wiley, Richard H.. Integral suction device with acoustic panel. USP2010087766280.
  15. Cloft, Thomas G.; Wiley, Richard H.. Integral suction device with acoustic panel. USP2013068459597.
  16. Hirt William J. (Bellevue WA) Caldwell Jack H. (Kent WA) Stachowiak Claude R. (Renton WA) Rushwald Ira B. (Seattle WA) Kumasaka Henry A. (Seattle WA). Jet engine noise suppressor. USP1990124979587.
  17. Torzo, Davide; Spano, Ennio. Low pressure turbine provided with splitters at the last stator array, in particular for a gas turbine engine. USP2017079702253.
  18. Haugen, Christina Granger Morrissey; Fintel, Bradley Willis; Green, Brian Richard; Klasing, Kevin Samuel. Modular louver system. USP2016079399951.
  19. Jacobs Loyd D. (Bellevue WA) Shivashankara Belur N. (Bellevue WA). Mounting assembly for unducted prop engine and method. USP1990044917336.
  20. Filipenco, Victor G.; Wall, Jordan T.. Secondary flow baffle for turbomachinery. USP20181010113561.
  21. Leblanc,Andr? Denis; Ouellet,Gilbert. Shockwave-induced boundary layer bleed. USP2006127147426.
  22. Lawlor,Shawn P.; Novaresi,Mark A.; Cornelius,Charles C.. Supersonic compressor. USP2008027334990.
  23. Lawlor,Shawn P.; Novaresi,Mark A.; Cornelius,Charles C.. Supersonic gas compressor. USP2007117293955.
  24. Papi, Andrea; Dawson, Lucie Mathilde; Tabouret, Elyse. Ventilation of a piece of electronic equipment of a turbomachine. USP2018049945249.