WO2014182546A3 - Turbofan engine front section - Google Patents

Turbofan engine front section Download PDF

Info

Publication number
WO2014182546A3
WO2014182546A3 PCT/US2014/036475 US2014036475W WO2014182546A3 WO 2014182546 A3 WO2014182546 A3 WO 2014182546A3 US 2014036475 W US2014036475 W US 2014036475W WO 2014182546 A3 WO2014182546 A3 WO 2014182546A3
Authority
WO
WIPO (PCT)
Prior art keywords
geared architecture
turbofan engine
planet gears
gear
front section
Prior art date
Application number
PCT/US2014/036475
Other languages
French (fr)
Other versions
WO2014182546A2 (en
Inventor
Frederick M. Schwarz
William G. Sheridan
Original Assignee
United Technologies Corporation
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
Application filed by United Technologies Corporation filed Critical United Technologies Corporation
Priority to EP21202524.1A priority Critical patent/EP3957847A1/en
Priority to EP14795071.1A priority patent/EP3008323B1/en
Priority to US14/888,154 priority patent/US10316758B2/en
Publication of WO2014182546A2 publication Critical patent/WO2014182546A2/en
Publication of WO2014182546A3 publication Critical patent/WO2014182546A3/en
Priority to US16/436,569 priority patent/US11203982B2/en
Priority to US17/527,542 priority patent/US20220074350A1/en

Links

Classifications

    • 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

Abstract

A turbofan engine includes a geared architecture for driving a fan about an axis. The geared architecture includes a sun gear rotatable about an axis, a plurality of planet gears driven by the sun gear and a ring gear circumscribing the plurality of planet gears. A carrier supports the plurality of planet gears. The geared architecture includes a power transfer parameter (PTP) defined as power transferred through the geared architecture divided by gear volume multiplied by a gear reduction ratio and is between about 219 and 328.
PCT/US2014/036475 2013-05-09 2014-05-02 Turbofan engine front section WO2014182546A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP21202524.1A EP3957847A1 (en) 2013-05-09 2014-05-02 Turbofan engine front section
EP14795071.1A EP3008323B1 (en) 2013-05-09 2014-05-02 Turbofan engine front section
US14/888,154 US10316758B2 (en) 2013-05-09 2014-05-02 Turbofan engine front section
US16/436,569 US11203982B2 (en) 2013-05-09 2019-06-10 Turbofan engine front section
US17/527,542 US20220074350A1 (en) 2013-05-09 2021-11-16 Gas turbine engine front section

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201361821387P 2013-05-09 2013-05-09
US61/821,387 2013-05-09

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US14/888,154 A-371-Of-International US10316758B2 (en) 2013-05-09 2014-05-02 Turbofan engine front section
US16/436,569 Continuation US11203982B2 (en) 2013-05-09 2019-06-10 Turbofan engine front section

Publications (2)

Publication Number Publication Date
WO2014182546A2 WO2014182546A2 (en) 2014-11-13
WO2014182546A3 true WO2014182546A3 (en) 2016-03-17

Family

ID=51867843

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2014/036475 WO2014182546A2 (en) 2013-05-09 2014-05-02 Turbofan engine front section

Country Status (3)

Country Link
US (3) US10316758B2 (en)
EP (2) EP3957847A1 (en)
WO (1) WO2014182546A2 (en)

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* Cited by examiner, † Cited by third party
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US10316758B2 (en) * 2013-05-09 2019-06-11 United Technologies Corporation Turbofan engine front section
US8869504B1 (en) * 2013-11-22 2014-10-28 United Technologies Corporation Geared turbofan engine gearbox arrangement
US20160230674A1 (en) * 2015-02-09 2016-08-11 United Technologies Corporation Gear reduction for lower thrust geared turbofan
GB201712993D0 (en) * 2017-08-14 2017-09-27 Rolls Royce Plc Gas turbine engine
GB2566045B (en) * 2017-08-31 2019-12-11 Rolls Royce Plc Gas turbine engine
GB201900733D0 (en) * 2019-01-18 2019-03-06 Rolls Royce Plc Highly loaded inlet duct in a geared turbofan
GB201902795D0 (en) 2019-03-01 2019-04-17 Rolls Royce Plc Geared gas turbine engine
EP4073369A1 (en) * 2019-12-11 2022-10-19 Safran Aircraft Engines Aero-propulsion system with improved propulsion efficiency
US11629649B2 (en) * 2020-05-11 2023-04-18 Raytheon Technologies Corporation Gas turbine engine with speed sensor

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US20120251306A1 (en) * 2009-11-20 2012-10-04 United Technologies Corporation Fan Rotor Support

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US10316758B2 (en) * 2013-05-09 2019-06-11 United Technologies Corporation Turbofan engine front section
US10287917B2 (en) * 2013-05-09 2019-05-14 United Technologies Corporation Turbofan engine front section
US8869504B1 (en) * 2013-11-22 2014-10-28 United Technologies Corporation Geared turbofan engine gearbox arrangement
DE102014222870A1 (en) * 2014-11-10 2016-05-12 MTU Aero Engines AG gas turbine
US20160245184A1 (en) * 2015-02-19 2016-08-25 United Technologies Corporation Geared turbine engine
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US20050109012A1 (en) * 2003-11-21 2005-05-26 Johnson James E. Aft FLADE engine
US20090071121A1 (en) * 2004-12-01 2009-03-19 Gabriel Suciu Counter-rotating gearbox for tip turbine engine
US20070217914A1 (en) * 2006-03-14 2007-09-20 Ishikawajima-Harima Heavy Industries Co., Ltd. Dovetail structure of fan
US20080022653A1 (en) * 2006-07-31 2008-01-31 Jan Christopher Schilling Gas turbine engine assembly and method of assembling same
US20120251306A1 (en) * 2009-11-20 2012-10-04 United Technologies Corporation Fan Rotor Support

Also Published As

Publication number Publication date
US10316758B2 (en) 2019-06-11
EP3008323A4 (en) 2017-04-05
EP3008323A2 (en) 2016-04-20
WO2014182546A2 (en) 2014-11-13
US20220074350A1 (en) 2022-03-10
US20200032715A1 (en) 2020-01-30
EP3008323B1 (en) 2021-11-10
US20160069270A1 (en) 2016-03-10
EP3957847A1 (en) 2022-02-23
US11203982B2 (en) 2021-12-21

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