EP2798188A4 - Gas turbine engine with fan variable area nozzle for low fan pressure ratio - Google Patents

Gas turbine engine with fan variable area nozzle for low fan pressure ratio

Info

Publication number
EP2798188A4
EP2798188A4 EP12872986.0A EP12872986A EP2798188A4 EP 2798188 A4 EP2798188 A4 EP 2798188A4 EP 12872986 A EP12872986 A EP 12872986A EP 2798188 A4 EP2798188 A4 EP 2798188A4
Authority
EP
European Patent Office
Prior art keywords
fan
gas turbine
turbine engine
pressure ratio
variable area
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
EP12872986.0A
Other languages
German (de)
French (fr)
Other versions
EP2798188A1 (en
Inventor
Gregory A Kohlenberg
Sean P Zamora
Frederick M Schwarz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RTX Corp
Original Assignee
United Technologies Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US13/340,810 external-priority patent/US9494084B2/en
Application filed by United Technologies Corp filed Critical United Technologies Corp
Publication of EP2798188A1 publication Critical patent/EP2798188A1/en
Publication of EP2798188A4 publication Critical patent/EP2798188A4/en
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02K—JET-PROPULSION PLANTS
    • F02K3/00—Plants including a gas turbine driving a compressor or a ducted fan
    • F02K3/02—Plants including a gas turbine driving a compressor or a ducted fan in which part of the working fluid by-passes the turbine and combustion chamber
    • F02K3/04—Plants including a gas turbine driving a compressor or a ducted fan in which part of the working fluid by-passes the turbine and combustion chamber the plant including ducted fans, i.e. fans with high volume, low pressure outputs, for augmenting the jet thrust, e.g. of double-flow type
    • F02K3/06—Plants including a gas turbine driving a compressor or a ducted fan in which part of the working fluid by-passes the turbine and combustion chamber the plant including ducted fans, i.e. fans with high volume, low pressure outputs, for augmenting the jet thrust, e.g. of double-flow type with front fan
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02K—JET-PROPULSION PLANTS
    • F02K1/00—Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto
    • F02K1/06—Varying effective area of jet pipe or nozzle
    • F02K1/09—Varying effective area of jet pipe or nozzle by axially moving an external member, e.g. a shroud
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02K—JET-PROPULSION PLANTS
    • F02K3/00—Plants including a gas turbine driving a compressor or a ducted fan
    • F02K3/02—Plants including a gas turbine driving a compressor or a ducted fan in which part of the working fluid by-passes the turbine and combustion chamber
    • F02K3/04—Plants including a gas turbine driving a compressor or a ducted fan in which part of the working fluid by-passes the turbine and combustion chamber the plant including ducted fans, i.e. fans with high volume, low pressure outputs, for augmenting the jet thrust, e.g. of double-flow type
    • F02K3/075—Plants including a gas turbine driving a compressor or a ducted fan in which part of the working fluid by-passes the turbine and combustion chamber the plant including ducted fans, i.e. fans with high volume, low pressure outputs, for augmenting the jet thrust, e.g. of double-flow type controlling flow ratio between flows
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2270/00—Control
    • F05D2270/01—Purpose of the control system
    • F05D2270/10—Purpose of the control system to cope with, or avoid, compressor flow instabilities

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP12872986.0A 2011-12-30 2012-12-28 Gas turbine engine with fan variable area nozzle for low fan pressure ratio Ceased EP2798188A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13/340,810 US9494084B2 (en) 2007-08-23 2011-12-30 Gas turbine engine with fan variable area nozzle for low fan pressure ratio
PCT/US2012/071954 WO2013147951A1 (en) 2011-12-30 2012-12-28 Gas turbine engine with fan variable area nozzle for low fan pressure ratio

Publications (2)

Publication Number Publication Date
EP2798188A1 EP2798188A1 (en) 2014-11-05
EP2798188A4 true EP2798188A4 (en) 2015-07-22

Family

ID=49260973

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12872986.0A Ceased EP2798188A4 (en) 2011-12-30 2012-12-28 Gas turbine engine with fan variable area nozzle for low fan pressure ratio

Country Status (4)

Country Link
EP (1) EP2798188A4 (en)
CN (1) CN104011361B (en)
SG (1) SG11201403587SA (en)
WO (1) WO2013147951A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9976437B2 (en) 2006-08-15 2018-05-22 United Technologies Corporation Epicyclic gear train
US10107231B2 (en) 2006-08-15 2018-10-23 United Technologies Corporation Gas turbine engine with geared architecture
US8753243B2 (en) 2006-08-15 2014-06-17 United Technologies Corporation Ring gear mounting arrangement with oil scavenge scheme
US8858388B2 (en) 2006-08-15 2014-10-14 United Technologies Corporation Gas turbine engine gear train
US20180017019A1 (en) * 2016-07-15 2018-01-18 General Electric Company Turbofan engine wth a splittered rotor fan
US20180017079A1 (en) * 2016-07-15 2018-01-18 General Electric Company Variable-cycle compressor with a splittered rotor
US20180216576A1 (en) * 2016-10-14 2018-08-02 General Electric Company Supersonic turbofan engine
US10815886B2 (en) * 2017-06-16 2020-10-27 General Electric Company High tip speed gas turbine engine
GB2566045B (en) * 2017-08-31 2019-12-11 Rolls Royce Plc Gas turbine engine
GB201719538D0 (en) * 2017-11-24 2018-01-10 Rolls Royce Plc Gas turbine engine
CN110466783B (en) * 2019-07-26 2023-03-28 中国航发沈阳发动机研究所 Aircraft afterbody fairing subassembly
CN113357007B (en) * 2021-06-23 2022-08-19 中国航发沈阳发动机研究所 Injection discharge device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3747343A (en) * 1972-02-10 1973-07-24 United Aircraft Corp Low noise prop-fan
EP1340903A2 (en) * 2002-03-01 2003-09-03 General Electric Company Counter rotating aircraft gas turbine engine
US20090226303A1 (en) * 2008-03-05 2009-09-10 Grabowski Zbigniew M Variable area fan nozzle fan flutter management system
EP2282016A2 (en) * 2009-07-01 2011-02-09 United Technologies Corporation Turbofan temperature control with variable area nozzle
US7950237B2 (en) * 2007-06-25 2011-05-31 United Technologies Corporation Managing spool bearing load using variable area flow nozzle

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9904221D0 (en) * 1999-02-25 1999-04-21 Rolls Royce Plc Gas turbine engine bearing arrangement
US7182519B2 (en) * 2004-06-24 2007-02-27 General Electric Company Methods and apparatus for assembling a bearing assembly
US7845902B2 (en) * 2005-02-15 2010-12-07 Massachusetts Institute Of Technology Jet engine inlet-fan system and design method
US7243825B2 (en) 2005-03-28 2007-07-17 Neil Lawrence Weisenfeld Bag holder

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3747343A (en) * 1972-02-10 1973-07-24 United Aircraft Corp Low noise prop-fan
EP1340903A2 (en) * 2002-03-01 2003-09-03 General Electric Company Counter rotating aircraft gas turbine engine
US7950237B2 (en) * 2007-06-25 2011-05-31 United Technologies Corporation Managing spool bearing load using variable area flow nozzle
US20090226303A1 (en) * 2008-03-05 2009-09-10 Grabowski Zbigniew M Variable area fan nozzle fan flutter management system
EP2282016A2 (en) * 2009-07-01 2011-02-09 United Technologies Corporation Turbofan temperature control with variable area nozzle

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2013147951A1 *

Also Published As

Publication number Publication date
SG11201403587SA (en) 2014-07-30
CN104011361B (en) 2017-03-29
WO2013147951A1 (en) 2013-10-03
CN104011361A (en) 2014-08-27
EP2798188A1 (en) 2014-11-05

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