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특허 상세정보

Gas turbine engine with variable pressure ratio fan system

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F02K-003/02   
미국특허분류(USC) 060/226.3
출원번호 US-0680387 (2003-10-07)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 37  인용 특허 : 15
초록

A multiple bypass turbofan engine includes axially spaced-apart first and second stage fans of the engine fan connected in driving engagement to a low pressure shaft. A fan bypass duct circumscribes the second stage fan. A first bypass inlet to the fan bypass duct is disposed axially between the first and second stage fans and a second bypass inlet is axially disposed between the second stage fan and an annular core engine inlet. A fan shroud divides the second stage fan blades into radially inner and outer fan hub and tip sections, respectively. The tip...

대표
청구항

1. A multiple bypass turbofan gas turbine engine comprising:axially spaced-apart first and second stage fans of the engine fan connected in driving engagement to a low pressure shaft;a fan bypass duct circumscribing the second stage fan;a first bypass inlet to the fan bypass duct disposed axially between the first and second stage fans;a second bypass inlet to the fan bypass duct axially disposed between the second stage fan and an annular core engine inlet;first stage fan blades of the first stage fan disposed axially across a first fan duct and second ...

이 특허에 인용된 특허 (15)

  1. Nash Dudley O. (Cincinnati OH) Clayton Thomas S. (Cincinnati OH). Actuation system for use on a gas turbine engine. USP1983104409788.
  2. Busbey Bruce C. ; Crall David W. ; Toye Michael D.. Blade assembly with splitter shroud. USP1999115988980.
  3. Ciokajlo John J. (Henderson NV) O\Brien Michael T. (Cincinnati OH). Hybrid rotor blade. USP1995025388964.
  4. Wagenknecht Conrad D. (West Chester OH) Faust Guy K. (West Chester OH). Individual bypass injector valves for a double bypass variable cycle turbofan engine. USP1979114175384.
  5. Klees ; Garry W.. Method for selectively switching motive fluid supply to an aft turbine of a multicycle engine. USP1978044085583.
  6. Dunbar Donald K. ; Miller Marlen L. ; Converse George L.. Methods for designing variable cycle gas turbine engines. USP2001096292763.
  7. Johnson James E. (Hamilton OH). Spillage drag and infrared reducing flade engine. USP1995045404713.
  8. Johnson James E. (Hamilton OH). Spillage drag reducing flade engine. USP1995045402638.
  9. Giffin ; III Rollin G. ; Johnson James E. ; Crall David W. ; Salvage John W. ; Szucs Peter N.. Turbofan engine with a core driven supercharged bypass duct. USP1998095809772.
  10. Johnson James E.. Turbofan engine with a core driven supercharged bypass duct and fixed geometry nozzle. USP1998095806303.
  11. Bartos James W.. Turbofan engine with a low pressure turbine driven supercharger in a bypass duct operated by a fuel rich combustor and a. USP1999025867980.
  12. Thomas William W. (Cincinnati OH) Sprunger Elmore V. (Cincinnati OH). Two-spool variable cycle engine. USP1977084043121.
  13. Simmons ; John Robert. Variable cycle engine with split fan section. USP1978014068471.
  14. Dunbar Donald K. ; Miller Marlen L. ; Converse George L.. Variable pressure and variable air flow turbofan engines. USP1998085794432.
  15. Giffin ; III Rollin G. (Cincinnati OH). Variable specific thrust turbofan engine. USP1993115261227.

이 특허를 인용한 특허 피인용횟수: 37

  1. McCaffrey, Michael G.; Hudson, Eric A.; Hill, James D.; Magge, Shankar S.; Wagner, Joel H.. 3D contoured vane endwall for variable area turbine vane arrangement. USP2012018105019.
  2. Ress, Jr., Robert A.; Stratton, Steve; Starr, Matthew J.. Adaptive fan system for a variable cycle turbofan engine. USP2017049624870.
  3. Zsurka, Mark. Aerodynamic track fairing for a gas turbine engine fan nacelle. USP20190310240561.
  4. Rupp, George D.; Troia, Trajaen J.. Aircraft engine airflow modulation apparatus and method for engine bay cooling and cycle flow matching. USP2016059353684.
  5. Roberge, Gary D.. Auxiliary propulsor for a variable cycle gas turbine engine. USP2012038127528.
  6. Rivera, Anthony. Composite duct assembly. USP2015038973263.
  7. Rhoden, William E.. Cooling air system for aircraft turbine engine. USP2016059341119.
  8. Powell, Brandon Flowers; Decker, John Jared. Double bypass turbofan. USP2009117614210.
  9. Sheridan, William G.. Dual fan gas turbine engine and gear train. USP20181210151248.
  10. Sheridan, William G.. Epicyclic gear train for turbo fan engine. USP2012068205432.
  11. Izquierdo, Felix; Bush, Robert H.; McAlice, Timothy J.. Flow control device for a three stream turbofan engine. USP2016119506423.
  12. Bradbrook, Stephen John; Davis, Brian; Wilson, Richard James. Gas turbine engine. USP2011027878005.
  13. Roberge, Gary D.; Suciu, Gabriel L.. Gas turbine engine systems involving tip fans. USP2013118590286.
  14. Roberge, Gary D.; Suciu, Gabriel L.. Gas turbine engine systems involving tip fans. USP2013038402742.
  15. Petty, Dale William; McMahon, Shawn M.; Murphy, Michael Joseph; Zamora, Sean P.; Swanson, Timothy A.. Gas turbine engine systems involving variable nozzles with sliding doors. USP2013018356483.
  16. Ress, Robert A.. Gas turbine engine with axial flow fan with twin stream impeller and variable area bypass nozzle. USP2018039926883.
  17. Erickson, Kaare; Yount, Randall E.. Gas turbine engine with bypass mixer. USP2015018938943.
  18. Kupratis, Daniel B.. Gas turbine engine with two-spool fan and variable vane turbine. USP2016039279388.
  19. Zamora, Sean P.; Murphy, Michael Joseph. Gas turbine engine with variable area fan nozzle. USP2012038141366.
  20. Kupratis, Daniel Bernard; Schwarz, Frederick M.. Geared architecture with inducer for gas turbine engine. USP20180710018119.
  21. Baltas, Constantine; Gilson, Jonathan. Geared turbofan engine having a reduced number of fan blades and improved acoustics. USP20190110184340.
  22. Baughman, John Lewis. Intermediate fan stage. USP2014078777554.
  23. Baughman, John Lewis; Giffin, Rollin George; Steinmetz, Ronald Burton. Methods and systems for supplying air to a vehicle. USP2010087784266.
  24. James, Norman J.; Ritchie, Keith; Scott, Thomas W.. Nacelle for a high bypass ratio engine with multiple flow paths. USP2017049623976.
  25. Christians, Joseph T.. Pre-turbine engine case variable area mixing plane. USP2016059341075.
  26. Baltas, Constantine; Prasad, Dilip; Gallagher, Edward J.. Rotor with flattened exit pressure profile. USP2015049017037.
  27. Teicholz, Matthew D.; Spiesman, Paul H.; Hanlon, Christopher J.; Gendron, John R.; Bartkowski, Glenn D.. Scheduling of variable area fan nozzle to optimize engine performance. USP2014108862362.
  28. Snyder, Ryan K.; Thomas, Michael R.. Staged heat exchangers for multi-bypass stream gas turbine engines. USP2018059964037.
  29. Nagel, Zachary William; Hofer, Douglas Carl. Supersonic compressor rotor. USP2015089103345.
  30. Ress, Jr., Robert A.. Three spool gas turbine engine having a clutch and compressor bypass. USP2014118887485.
  31. Buey, John R.; Bush, Robert H.; Izquierdo, Felix. Translating outer cowl flow modulation device and method. USP20181210145336.
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  33. Kupratis, Daniel B.. Turbofan with gear-driven compressor and fan-driven core. USP2015049003808.
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  35. Moon, Francis R.; Kupratis, Daniel B.. Variable exhaust mixer and cooler for a three-stream gas turbine engine. USP20180710030606.
  36. Starr, Matthew J.. Variable pressure ratio compressor. USP2014108863529.
  37. Gritton, Mark; Starr, Matthew J.; Fritsch, Theodore J.. Variable pressure ratio gas turbine engine. USP2013128596076.