EP2798160A4 - Gas turbine engine oil buffering - Google Patents

Gas turbine engine oil buffering

Info

Publication number
EP2798160A4
EP2798160A4 EP12872177.6A EP12872177A EP2798160A4 EP 2798160 A4 EP2798160 A4 EP 2798160A4 EP 12872177 A EP12872177 A EP 12872177A EP 2798160 A4 EP2798160 A4 EP 2798160A4
Authority
EP
European Patent Office
Prior art keywords
gas turbine
turbine engine
engine oil
oil buffering
buffering
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.)
Withdrawn
Application number
EP12872177.6A
Other languages
German (de)
French (fr)
Other versions
EP2798160A1 (en
Inventor
Jorn A Glahn
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.)
Raytheon Technologies 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 US13/340,871 external-priority patent/US8997500B2/en
Application filed by United Technologies Corp filed Critical United Technologies Corp
Publication of EP2798160A1 publication Critical patent/EP2798160A1/en
Publication of EP2798160A4 publication Critical patent/EP2798160A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/16—Arrangement of bearings; Supporting or mounting bearings in casings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
    • F02C3/04—Gas-turbine plants characterised by the use of combustion products as the working fluid having a turbine driving a compressor
    • F02C3/107—Gas-turbine plants characterised by the use of combustion products as the working fluid having a turbine driving a compressor with two or more rotors connected by power transmission
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use
    • F02C6/04—Gas-turbine plants providing heated or pressurised working fluid for other apparatus, e.g. without mechanical power output
    • F02C6/06—Gas-turbine plants providing heated or pressurised working fluid for other apparatus, e.g. without mechanical power output providing compressed gas
    • F02C6/08—Gas-turbine plants providing heated or pressurised working fluid for other apparatus, e.g. without mechanical power output providing compressed gas the gas being bled from the gas-turbine compressor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
    • F02C7/36—Power transmission arrangements between the different shafts of the gas turbine plant, or between the gas-turbine plant and the power user
    • 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
    • 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
    • F05D2260/00—Function
    • F05D2260/40—Transmission of power
    • F05D2260/403—Transmission of power through the shape of the drive components
    • F05D2260/4031—Transmission of power through the shape of the drive components as in toothed gearing
    • F05D2260/40311—Transmission of power through the shape of the drive components as in toothed gearing of the epicyclical, planetary or differential type

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)
  • Retarders (AREA)
EP12872177.6A 2011-12-30 2012-12-27 Gas turbine engine oil buffering Withdrawn EP2798160A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13/340,871 US8997500B2 (en) 2010-02-19 2011-12-30 Gas turbine engine oil buffering
PCT/US2012/071815 WO2013141926A1 (en) 2011-12-30 2012-12-27 Gas turbine engine oil buffering

Publications (2)

Publication Number Publication Date
EP2798160A1 EP2798160A1 (en) 2014-11-05
EP2798160A4 true EP2798160A4 (en) 2015-10-14

Family

ID=49223141

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12872177.6A Withdrawn EP2798160A4 (en) 2011-12-30 2012-12-27 Gas turbine engine oil buffering

Country Status (4)

Country Link
EP (1) EP2798160A4 (en)
CN (1) CN104136721B (en)
SG (1) SG11201403008WA (en)
WO (1) WO2013141926A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2610463B1 (en) 2011-12-30 2016-08-03 United Technologies Corporation Gas turbine engine gear train
US10100736B2 (en) * 2015-10-30 2018-10-16 General Electric Company Gas turbine engine sump heat exchanger
FR3049006B1 (en) * 2016-03-15 2018-03-16 Safran Aircraft Engines TURBOREACTOR HAVING A SIMPLIFIED BEARING LUBRICATION GROUP
US9777633B1 (en) * 2016-03-30 2017-10-03 General Electric Company Secondary airflow passage for adjusting airflow distortion in gas turbine engine
EP3354883B1 (en) 2017-01-30 2022-04-20 GE AVIO S.r.l. Locknut sun gear for gas turbine engine
US10513938B2 (en) * 2017-04-25 2019-12-24 United Technologies Corporation Intershaft compartment buffering arrangement
CN110005631B (en) * 2019-04-22 2020-07-28 中国航发湖南动力机械研究所 Centrifugal impeller rear bearing cooling and sealing structure

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2362081A1 (en) * 2010-02-19 2011-08-31 United Technologies Corporation Bearing compartment pressurization and shaft ventilation system

Family Cites Families (10)

* 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
US4653267A (en) * 1983-05-31 1987-03-31 United Technologies Corporation Thrust balancing and cooling system
US6619030B1 (en) * 2002-03-01 2003-09-16 General Electric Company Aircraft engine with inter-turbine engine frame supported counter rotating low pressure turbine rotors
US20030182944A1 (en) * 2002-04-02 2003-10-02 Hoffman John S. Highly supercharged gas-turbine generating system
US7021042B2 (en) * 2002-12-13 2006-04-04 United Technologies Corporation Geartrain coupling for a turbofan engine
US8585538B2 (en) * 2006-07-05 2013-11-19 United Technologies Corporation Coupling system for a star gear train in a gas turbine engine
US8210316B2 (en) * 2006-12-12 2012-07-03 United Technologies Corporation Oil scavenge system for a gas turbine engine
US7721549B2 (en) * 2007-02-08 2010-05-25 United Technologies Corporation Fan variable area nozzle for a gas turbine engine fan nacelle with cam drive ring actuation system
US7955046B2 (en) * 2007-09-25 2011-06-07 United Technologies Corporation Gas turbine engine front architecture modularity
US8205432B2 (en) * 2007-10-03 2012-06-26 United Technologies Corporation Epicyclic gear train for turbo fan engine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2362081A1 (en) * 2010-02-19 2011-08-31 United Technologies Corporation Bearing compartment pressurization and shaft ventilation system

Also Published As

Publication number Publication date
CN104136721A (en) 2014-11-05
WO2013141926A1 (en) 2013-09-26
SG11201403008WA (en) 2014-09-26
CN104136721B (en) 2017-05-31
EP2798160A1 (en) 2014-11-05

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Legal Events

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