EP2834473A4 - Geared turbofan engine with power density range - Google Patents

Geared turbofan engine with power density range

Info

Publication number
EP2834473A4
EP2834473A4 EP13837107.5A EP13837107A EP2834473A4 EP 2834473 A4 EP2834473 A4 EP 2834473A4 EP 13837107 A EP13837107 A EP 13837107A EP 2834473 A4 EP2834473 A4 EP 2834473A4
Authority
EP
European Patent Office
Prior art keywords
power density
density range
turbofan engine
geared turbofan
geared
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Withdrawn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
EP13837107.5A
Other languages
German (de)
French (fr)
Other versions
EP2834473A1 (en
Inventor
Frederick M Schwarz
Daniel Bernard Kupratis
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
Application filed by United Technologies Corp filed Critical United Technologies Corp
Publication of EP2834473A1 publication Critical patent/EP2834473A1/en
Publication of EP2834473A4 publication Critical patent/EP2834473A4/en
Withdrawn legal-status Critical Current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
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D1/00—Non-positive-displacement machines or engines, e.g. steam turbines
    • F01D1/24—Non-positive-displacement machines or engines, e.g. steam turbines characterised by counter-rotating rotors subjected to same working fluid stream without intermediate stator blades or the like
    • F01D1/26—Non-positive-displacement machines or engines, e.g. steam turbines characterised by counter-rotating rotors subjected to same working fluid stream without intermediate stator blades or the like traversed by the working-fluid substantially axially
    • 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
    • F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
    • F01D15/12—Combinations with mechanical gearing
    • 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
    • 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)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP13837107.5A 2012-04-02 2013-03-29 Geared turbofan engine with power density range Withdrawn EP2834473A4 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201261619111P 2012-04-02 2012-04-02
US13/446,312 US20130259653A1 (en) 2012-04-02 2012-04-13 Geared turbofan engine with power density range
PCT/US2013/034518 WO2014042698A1 (en) 2012-04-02 2013-03-29 Geared turbofan engine with power density range

Publications (2)

Publication Number Publication Date
EP2834473A1 EP2834473A1 (en) 2015-02-11
EP2834473A4 true EP2834473A4 (en) 2016-03-02

Family

ID=49235274

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13837107.5A Withdrawn EP2834473A4 (en) 2012-04-02 2013-03-29 Geared turbofan engine with power density range

Country Status (3)

Country Link
US (1) US20130259653A1 (en)
EP (1) EP2834473A4 (en)
WO (1) WO2014042698A1 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9631558B2 (en) 2012-01-03 2017-04-25 United Technologies Corporation Geared architecture for high speed and small volume fan drive turbine
US9239012B2 (en) 2011-06-08 2016-01-19 United Technologies Corporation Flexible support structure for a geared architecture gas turbine engine
EP3088702A1 (en) 2011-12-30 2016-11-02 United Technologies Corporation Gas turbine engine gear train
US10287914B2 (en) 2012-01-31 2019-05-14 United Technologies Corporation Gas turbine engine with high speed low pressure turbine section and bearing support features
US10125693B2 (en) 2012-04-02 2018-11-13 United Technologies Corporation Geared turbofan engine with power density range
WO2014055122A1 (en) * 2012-10-01 2014-04-10 United Technologies Corporation Geared turbofan high gearbox power density
EP2949881B1 (en) * 2013-06-03 2018-08-29 United Technologies Corporation Geared architecture for high speed and small volume fan drive turbine
US10267228B2 (en) 2013-10-31 2019-04-23 United Technologies Corporation Geared turbofan arrangement with core split power ratio
US10502163B2 (en) 2013-11-01 2019-12-10 United Technologies Corporation Geared turbofan arrangement with core split power ratio
WO2015112212A2 (en) 2013-11-01 2015-07-30 United Technologies Corporation Geared turbofan arrangement with core split power ratio
US9869190B2 (en) 2014-05-30 2018-01-16 General Electric Company Variable-pitch rotor with remote counterweights
US10072510B2 (en) 2014-11-21 2018-09-11 General Electric Company Variable pitch fan for gas turbine engine and method of assembling the same
CA2916866C (en) * 2015-01-09 2020-02-18 United Technologies Corporation Geared turbofan engine with power density range
US10100653B2 (en) 2015-10-08 2018-10-16 General Electric Company Variable pitch fan blade retention system
US10648365B2 (en) * 2015-12-08 2020-05-12 General Electric Company Gas turbine engine bearing sump and lubricant drain line from cooling passage
US11674435B2 (en) 2021-06-29 2023-06-13 General Electric Company Levered counterweight feathering system
US11795964B2 (en) 2021-07-16 2023-10-24 General Electric Company Levered counterweight feathering system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7694505B2 (en) * 2006-07-31 2010-04-13 General Electric Company Gas turbine engine assembly and method of assembling same
EP2192269A2 (en) * 2008-11-28 2010-06-02 Pratt & Whitney Canada Corp. Interturbine duct strut and vane ring for gas turbine engine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7694505B2 (en) * 2006-07-31 2010-04-13 General Electric Company Gas turbine engine assembly and method of assembling same
EP2192269A2 (en) * 2008-11-28 2010-06-02 Pratt & Whitney Canada Corp. Interturbine duct strut and vane ring for gas turbine engine

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
GRAY D E ET AL: "Energy Efficient Engine Program Technology Benefit/Cost Study, Vol.2", vol. 2, 1 October 1983 (1983-10-01), pages 1 - 118, XP009502192, ISSN: 0565-7059, Retrieved from the Internet <URL:https://ntrs.nasa.gov/search.jsp?R=19900019249> [retrieved on 20190121] *
See also references of WO2014042698A1 *

Also Published As

Publication number Publication date
US20130259653A1 (en) 2013-10-03
WO2014042698A1 (en) 2014-03-20
EP2834473A1 (en) 2015-02-11

Similar Documents

Publication Publication Date Title
EP2834473A4 (en) Geared turbofan engine with power density range
EP3071824B8 (en) Geared turbofan engine gearbox arrangement
EP3058202A4 (en) Geared turbofan engine with targeted modular efficiency
SG11201406230TA (en) Geared turbofan with three turbines all counter-rotating
EP3004564A4 (en) Turbofan engine with generator
SG11201403706WA (en) Low noise turbine for geared turbofan engine
PL2917532T3 (en) Acoustic structure with internal thermal regulators
SG11201402937TA (en) Geared turbofan engine with counter-rotating shafts
EP2898205A4 (en) Geared gas turbine engine accessory gearbox
EP2834494A4 (en) Geared turbofan engine with power density range
SG11201405924VA (en) Geared turbofan with three co-rotating turbines
EP2834505A4 (en) Geared architecture with inducer for gas turbine engine
ZA201300102B (en) Bi-fuel engine with increased power
EP2820278A4 (en) Hybrid turbofan engine
EP2669486A4 (en) Engine generator
SG11201402663XA (en) Gas turbine engine with geared architecture
EP2904250A4 (en) Geared turbofan high gearbox power density
EP2766588A4 (en) An aerodiesel engine
GB201114669D0 (en) Turbine engine
EP2873831A4 (en) Engine with supercharger
GB201219731D0 (en) Gas turbine engine end-wall component
EP3026784A4 (en) Engine power generator
EP2844853A4 (en) Manifold for geared turbofan engine
SG11201406221UA (en) Geared turbofan with three turbines all co-rotating
EP2815073A4 (en) An engine

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20141028

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAX Request for extension of the european patent (deleted)
RA4 Supplementary search report drawn up and despatched (corrected)

Effective date: 20160128

RIC1 Information provided on ipc code assigned before grant

Ipc: F01D 1/26 20060101ALI20160122BHEP

Ipc: F01D 1/04 20060101ALI20160122BHEP

Ipc: F02C 3/107 20060101ALI20160122BHEP

Ipc: F02K 3/06 20060101ALI20160122BHEP

Ipc: F01D 15/12 20060101AFI20160122BHEP

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: UNITED TECHNOLOGIES CORPORATION

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20190125

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: RAYTHEON TECHNOLOGIES CORPORATION

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Effective date: 20230109