FR2979391B1 - Turbomachine comportant un element grillage circonferentiel entre deux helices contrarotatives non carenees - Google Patents

Turbomachine comportant un element grillage circonferentiel entre deux helices contrarotatives non carenees

Info

Publication number
FR2979391B1
FR2979391B1 FR1157555A FR1157555A FR2979391B1 FR 2979391 B1 FR2979391 B1 FR 2979391B1 FR 1157555 A FR1157555 A FR 1157555A FR 1157555 A FR1157555 A FR 1157555A FR 2979391 B1 FR2979391 B1 FR 2979391B1
Authority
FR
France
Prior art keywords
circonferential
carine
griding
turbomachine
contrarotative
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
FR1157555A
Other languages
English (en)
Other versions
FR2979391A1 (fr
Inventor
Nicolas Mehier
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
SNECMA SAS
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 SNECMA SAS filed Critical SNECMA SAS
Priority to FR1157555A priority Critical patent/FR2979391B1/fr
Publication of FR2979391A1 publication Critical patent/FR2979391A1/fr
Application granted granted Critical
Publication of FR2979391B1 publication Critical patent/FR2979391B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F02K3/072—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 counter-rotating, e.g. fan rotors
    • 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
    • F02K3/025—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 by-pass flow being at least partly used to create an independent thrust component
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D27/00—Arrangement or mounting of power plant in aircraft; Aircraft characterised thereby
    • 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
    • F05D2260/00—Function
    • F05D2260/96—Preventing, counteracting or reducing vibration or noise
    • 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)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
FR1157555A 2011-08-26 2011-08-26 Turbomachine comportant un element grillage circonferentiel entre deux helices contrarotatives non carenees Active FR2979391B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1157555A FR2979391B1 (fr) 2011-08-26 2011-08-26 Turbomachine comportant un element grillage circonferentiel entre deux helices contrarotatives non carenees

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1157555A FR2979391B1 (fr) 2011-08-26 2011-08-26 Turbomachine comportant un element grillage circonferentiel entre deux helices contrarotatives non carenees

Publications (2)

Publication Number Publication Date
FR2979391A1 FR2979391A1 (fr) 2013-03-01
FR2979391B1 true FR2979391B1 (fr) 2013-08-23

Family

ID=44681376

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1157555A Active FR2979391B1 (fr) 2011-08-26 2011-08-26 Turbomachine comportant un element grillage circonferentiel entre deux helices contrarotatives non carenees

Country Status (1)

Country Link
FR (1) FR2979391B1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3021706B1 (fr) 2014-05-28 2020-05-15 Safran Aircraft Engines Turbopropulseur d'aeronef comportant deux helices coaxiales.
FR3032942B1 (fr) 2015-02-19 2018-11-23 Safran Aircraft Engines Ensemble propulsif pour aeronef comprenant un turboreacteur a soufflante non carenee et un pylone d'accrochage
FR3050721B1 (fr) * 2016-04-28 2018-04-13 Airbus Operations Ensemble moteur pour aeronef comprenant un bord d'attaque de mat integre a une rangee annulaire d'aubes directrices de sortie non carenees
US10556702B2 (en) 2016-07-13 2020-02-11 General Electric Company Aircraft having an airflow duct

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5156353A (en) * 1987-04-13 1992-10-20 General Electric Company Aircraft pylon
DE3834511A1 (de) * 1987-10-13 1990-04-12 Kastens Karl Propellergeblaese
GB0702608D0 (en) * 2007-02-10 2007-03-21 Rolls Royce Plc Aeroengine
GB0908595D0 (en) * 2009-05-20 2009-06-24 Rolls Royce Plc Propfan engine

Also Published As

Publication number Publication date
FR2979391A1 (fr) 2013-03-01

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