FR3074476B1 - Turbopropulseur d'aeronef comportant une helice non carenee - Google Patents

Turbopropulseur d'aeronef comportant une helice non carenee Download PDF

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Publication number
FR3074476B1
FR3074476B1 FR1761697A FR1761697A FR3074476B1 FR 3074476 B1 FR3074476 B1 FR 3074476B1 FR 1761697 A FR1761697 A FR 1761697A FR 1761697 A FR1761697 A FR 1761697A FR 3074476 B1 FR3074476 B1 FR 3074476B1
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FR
France
Prior art keywords
propeller
aircraft
faired
turbopropeller
turboprop
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.)
Active
Application number
FR1761697A
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English (en)
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FR3074476A1 (fr
Inventor
Jeremy Edmond Fert
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.)
Safran Aircraft Engines SAS
Original Assignee
Safran Aircraft Engines SAS
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Publication date
Application filed by Safran Aircraft Engines SAS filed Critical Safran Aircraft Engines SAS
Priority to FR1761697A priority Critical patent/FR3074476B1/fr
Publication of FR3074476A1 publication Critical patent/FR3074476A1/fr
Application granted granted Critical
Publication of FR3074476B1 publication Critical patent/FR3074476B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
    • B64C11/46—Arrangements of, or constructional features peculiar to, multiple propellers
    • B64C11/48—Units of two or more coaxial propellers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
    • B64C11/001—Shrouded propellers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D27/00—Arrangement or mounting of power plants in aircraft; Aircraft characterised by the type or position of power plants
    • B64D2027/005—Aircraft with an unducted turbofan comprising contra-rotating rotors, e.g. contra-rotating open rotors [CROR]
    • 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
    • F05D2220/00—Application
    • F05D2220/30—Application in turbines
    • F05D2220/32—Application in turbines in gas turbines
    • F05D2220/324—Application in turbines in gas turbines to drive unshrouded, low solidity propeller
    • 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
    • F05D2220/00—Application
    • F05D2220/30—Application in turbines
    • F05D2220/32—Application in turbines in gas turbines
    • F05D2220/326—Application in turbines in gas turbines to drive shrouded, low solidity propeller
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T50/00—Aeronautics or air transport
    • Y02T50/60—Efficient propulsion technologies, e.g. for aircraft

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

L'invention concerne un turbopropulseur (1) d'aéronef comportant une hélice (14) non carénée entraînée en rotation autour d'un axe longitudinal (X) par un moteur (2) de type turbomachine et une seconde hélice (15), coaxiale à ladite hélice (14) non carénée et de diamètre (D2) inférieur à celui (D1) de cette hélice, caractérisé en ce que le turbopropulseur (1) comporte une nacelle (17) carénant ladite seconde hélice (15) et s'arrêtant longitudinalement entre l'hélice (14) non carénée et la seconde hélice (15). L'invention concerne aussi un aéronef comportant un tel turbopropulseur.
FR1761697A 2017-12-06 2017-12-06 Turbopropulseur d'aeronef comportant une helice non carenee Active FR3074476B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1761697A FR3074476B1 (fr) 2017-12-06 2017-12-06 Turbopropulseur d'aeronef comportant une helice non carenee

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1761697A FR3074476B1 (fr) 2017-12-06 2017-12-06 Turbopropulseur d'aeronef comportant une helice non carenee
FR1761697 2017-12-06

Publications (2)

Publication Number Publication Date
FR3074476A1 FR3074476A1 (fr) 2019-06-07
FR3074476B1 true FR3074476B1 (fr) 2020-12-25

Family

ID=61187496

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1761697A Active FR3074476B1 (fr) 2017-12-06 2017-12-06 Turbopropulseur d'aeronef comportant une helice non carenee

Country Status (1)

Country Link
FR (1) FR3074476B1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4144980A1 (fr) * 2021-09-03 2023-03-08 General Electric Company Moteur à turbine à gaz ayant un troisième flux
US11492918B1 (en) * 2021-09-03 2022-11-08 General Electric Company Gas turbine engine with third stream
WO2023198963A1 (fr) 2022-04-15 2023-10-19 Safran Aircraft Engines Turbomachine d'aeronef a plusieurs flux
BE1030472B1 (fr) * 2022-04-21 2023-11-27 Safran Aero Boosters Separateur de flux dans une turbomachine triple-flux
BE1030508B1 (fr) * 2022-04-21 2023-12-04 Safran Aero Boosters Rotor a anneau intermediaire
WO2024121463A1 (fr) 2022-12-05 2024-06-13 Safran Aircraft Engines Ensemble propulsif pour un aéronef

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4446696A (en) * 1981-06-29 1984-05-08 General Electric Company Compound propulsor
DE102009036011A1 (de) * 2009-08-04 2011-02-10 Rolls-Royce Deutschland Ltd & Co Kg Flugzeugtriebwerk mit einer Gasturbine und einem durchströmten Propeller
US8689538B2 (en) * 2009-09-09 2014-04-08 The Boeing Company Ultra-efficient propulsor with an augmentor fan circumscribing a turbofan
FR2958621B1 (fr) * 2010-04-09 2012-03-23 Snecma Helice non carenee pour turbomachine.
US8943796B2 (en) * 2011-06-28 2015-02-03 United Technologies Corporation Variable cycle turbine engine
FR2981686B1 (fr) * 2011-10-21 2016-05-20 Snecma Turbomachine comprenant un recepteur a helices contrarotatives supporte par une enveloppe structurale fixee au carter intermediaire
CN104968893B (zh) * 2012-10-23 2020-12-04 通用电气公司 无涵道的推力产生***体系结构
FR3005989B1 (fr) * 2013-05-21 2017-08-18 Snecma Turbopropulseur d'aeronef
FR3036141B1 (fr) * 2015-05-12 2019-08-09 Safran Aircraft Engines Arbre de commande radial pour dispositif de commande de l'orientation des pales de soufflante d'une turbomachine a soufflante non carenee et procede de montage d'un tel arbre.
GB2542184A (en) * 2015-09-11 2017-03-15 Rolls Royce Plc Aircraft comprising a boundary layer ingesting propulsor

Also Published As

Publication number Publication date
FR3074476A1 (fr) 2019-06-07

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