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특허 상세정보

Variable double lip quiet inlet

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B64D-033/02   
미국특허분류(USC) 137/151 ; 244/53B ; 181/214
출원번호 US-0781777 (1977-03-28)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 36  인용 특허 : 0
초록

An inlet for a gas turbine engine is provided with a fixed geometry upstream lip defining the primary inlet flow passage, and a variable position downstream lip partially defining an efficient auxiliary fluid flow passage through the inlet. The upstream lip is sized to pass all of the engine flow requirements at a near-sonic average Mach number during engine approach operating conditions. Apparatus is provided to position the variable lip for modulating flow through the auxiliary passage during higher engine power settings.

대표
청구항

In a method of operating an aircraft gas turbine engine, the steps of: passing substantially all of the required engine airflow through a fixed geometry forward inlet lip at a near-sonic average Mach number during engine approach power conditions, and passing additional airflow through an inlet passage defined in part by a downstream variable position lip during higher engine power conditions.

이 특허를 인용한 특허 피인용횟수: 36

  1. Devine, Michael Thomas. Adjustable size inlet system. USP20181010107196.
  2. Boulet, Nicolas; Affortit, Sébastien. Air inlet for aircraft propulsion unit having a structure resistant to excess pressure and a process for repairing an air inlet of an aircraft propulsion unit. USP2015069061769.
  3. Hlavka, Brian D.; Pattie, Jody H.. Aircraft cabin airflow nozzles and associated systems and methods. USP2016119505498.
  4. Tuan, Yen. Aviation engine inlet with tangential blowing for buzz saw noise control. USP2012088234869.
  5. Moran, John Patrick. Bird deflector and air replacement system technical field. USP2011118052083.
  6. Laurant, Franck; Bellet, Francois; Joret, Jean-Philippe. Composite panel having a built-in duct. USP2016089410485.
  7. Porte Alain,FRX ; Lasserre Jean-Louis,FRX. Device for fixing an air intake to a jet engine and jet engine incorporating such a device. USP1998045737914.
  8. Winter, Michael. Fan nacelle flow control. USP2013098529188.
  9. Hebert Leonard J. ; Miller Wendell R. ; Nesbitt Eric H. ; Piro Jerry ; Sangwin Michael L.. Flow control device to eliminate cavity resonance. USP2000046050527.
  10. Rivers, Jonathan M.; Fulayter, Roy D.. Gas turbine engine access panel. USP2017099759095.
  11. Morford, Stephen A.; Larkin, Michael J.. Gas turbine engine having slim-line nacelle. USP2014098844294.
  12. Morford, Stephen A.; Larkin, Michael J.. Gas turbine engine having slim-line nacelle. USP2013018353164.
  13. Morford, Stephen A.; Larkin, Michael J.. Gas turbine engine having slim-line nacelle. USP2014058726632.
  14. Winter, Michael; Jain, Ashok K.. Gas turbine engine system providing simulated boundary layer thickness increase. USP2012078209953.
  15. Lahti Daniel J. (Cincinnati OH) Younghans James L. (Cincinnati OH). Laminar flow necelle. USP1989014799633.
  16. Koncsek, Joseph L.; McMahon, Steven L.; Bultman, Myron L.; Sangwin, Michael L.. Method and apparatus for controlling aircraft inlet air flow. USP2003106634595.
  17. Gruensfelder Cynthia Ann ; Wille Robert Henry. Mission adaptive inlet. USP2001076260567.
  18. Ali, Amr; Qiu, Yuan J.. Multi-splice acoustic liner. USP2013128602156.
  19. Jain, Ashok K.; Winter, Michael. Nacelle assembly having inlet airfoil for a gas turbine engine. USP2013048408491.
  20. Haas, Martin. Nacelle assembly having inlet bleed. USP2012068192147.
  21. Haas, Martin. Nacelle assembly with turbulators. USP2012058186942.
  22. Jain, Ashok K.. Nacelle flow assembly. USP2013128596573.
  23. Jain, Ashok K.. Nacelle flow assembly. USP2012108282037.
  24. Jain, Ashok K.. Nacelle flow assembly. USP2015049004399.
  25. Zysman, Steven H.; Lord, Wesley K.; Miller, Robert M.; Atassi, Oliver V.. Passive boundary layer bleed system for nacelle inlet airflow control. USP2017059644535.
  26. Zysman, Steven H.; Lord, Wesley K.; Miller, Robert M.; Atassi, Oliver V.. Passive boundary layer bleed system for nacelle inlet airflow control. USP2014098839805.
  27. Zysman, Steven H.; Lord, Wesley K.; Miller, Robert M.; Atassi, Oliver V.. Passive boundary layer bleed system for nacelle inlet airflow control. USP2014098844553.
  28. Parikh, Pradip G.. Passive removal of suction air for laminar flow control, and associated systems and methods. USP2011017866609.
  29. De Roche, Mark Stephen. Peripheral control ejector. USP2013048413932.
  30. Scherer, Thomas; Solntsev, Alexander; Heesch, Michael. Ram air channel for the supply of ambient air in an aircraft. USP2010117832684.
  31. Harm Dorson J. (Seattle WA) Zabinsky Joseph M. (Bellevue WA). Translating lip aircraft cowling structure adapted for noise reduction. USP1991055014933.
  32. Surply, Thierry; Bourdeau, Christophe. Turbojet nacelle and method for controlling separation in a turbojet nacelle. USP2014028640986.
  33. Jain, Ashok K.; Winter, Michael. Variable contour nacelle assembly for a gas turbine engine. USP2016019228534.
  34. Labrecque, Michel; Couture-Gagnon, Vincent; Ullyott, Richard. Variable geometry inlet system. USP20190310221764.
  35. Jain, Ashok K.; Chaudhry, Zaffir A.. Variable shape inlet section for a nacelle assembly of a gas turbine engine. USP2013038402739.
  36. Porte, Alain; Prat, Damien. Ventilating air intake arrangement. USP2013048425283.