FR3034462A1 - TURBOMACHINE DISCHARGE VEIN CONDUIT COMPRISING A VARIABLE SECTION VBV GRID - Google Patents

TURBOMACHINE DISCHARGE VEIN CONDUIT COMPRISING A VARIABLE SECTION VBV GRID Download PDF

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Publication number
FR3034462A1
FR3034462A1 FR1552811A FR1552811A FR3034462A1 FR 3034462 A1 FR3034462 A1 FR 3034462A1 FR 1552811 A FR1552811 A FR 1552811A FR 1552811 A FR1552811 A FR 1552811A FR 3034462 A1 FR3034462 A1 FR 3034462A1
Authority
FR
France
Prior art keywords
variable section
discharge
turbomachine
discharge vein
vein conduit
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.)
Granted
Application number
FR1552811A
Other languages
French (fr)
Other versions
FR3034462B1 (en
Inventor
Jean-Frederic Pierre Joseph Bruhat
Benjamin Lukowski
Philippe Jacques Pierre Fessou
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 FR1552811A priority Critical patent/FR3034462B1/en
Publication of FR3034462A1 publication Critical patent/FR3034462A1/en
Application granted granted Critical
Publication of FR3034462B1 publication Critical patent/FR3034462B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F02K3/075—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 controlling flow ratio between flows
    • 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
    • F01D17/00—Regulating or controlling by varying flow
    • F01D17/10—Final actuators
    • F01D17/12—Final actuators arranged in stator parts
    • F01D17/14—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits
    • F01D17/148—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of rotatable members, e.g. butterfly valves
    • 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
    • F01D9/00—Stators
    • F01D9/06—Fluid supply conduits to nozzles or the like
    • 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
    • F02C9/00—Controlling gas-turbine plants; Controlling fuel supply in air- breathing jet-propulsion plants
    • F02C9/16—Control of working fluid flow
    • F02C9/18—Control of working fluid flow by bleeding, bypassing or acting on variable working fluid interconnections between turbines or compressors or their stages
    • 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
    • F05D2250/00—Geometry
    • F05D2250/40—Movement of components
    • F05D2250/41—Movement of components with one degree of freedom
    • F05D2250/411—Movement of components with one degree of freedom in rotation
    • 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
    • F05D2260/60—Fluid transfer
    • F05D2260/606—Bypassing the fluid
    • 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

Abstract

L'invention concerne un moyeu (2) de carter intermédiaire (1) pour une turbomachine à double flux comprenant : - un conduit de veine de décharge (18), débouchant d'une part dans l'espace d'écoulement primaire (10) de la turbomachine à travers un orifice d'entrée (4), et d'autre part dans l'espace d'écoulement secondaire (14) à travers un orifice de sortie (6), - une vanne de décharge, comprenant une porte mobile au niveau de l'orifice d'entrée, - un ensemble d'ailettes de décharge (22), fixées dans le conduit de veine de décharge (18), au niveau de l'orifice de sortie (6), et - des moyens d'obturation (22, 26), configurés pour ajuster une section de passage de l'orifice de sortie (6) en fonction de la position de la porte (12) mobile.The invention relates to a hub (2) for intermediate casing (1) for a turbofan engine comprising: - a discharge vein duct (18) opening on the one hand in the primary flow space (10) of the turbomachine through an inlet (4), and secondly into the secondary flow space (14) through an outlet (6), - a discharge valve, comprising a movable gate at the inlet port; - a set of discharge vanes (22) secured in the discharge vein duct (18) at the outlet port (6), and - means shutter means (22, 26) configured to adjust a passage section of the outlet port (6) in accordance with the position of the movable door (12).

FR1552811A 2015-04-01 2015-04-01 TURBOMACHINE DISCHARGE VEIN CONDUIT COMPRISING A VARIABLE SECTION VBV GRID Active FR3034462B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1552811A FR3034462B1 (en) 2015-04-01 2015-04-01 TURBOMACHINE DISCHARGE VEIN CONDUIT COMPRISING A VARIABLE SECTION VBV GRID

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1552811A FR3034462B1 (en) 2015-04-01 2015-04-01 TURBOMACHINE DISCHARGE VEIN CONDUIT COMPRISING A VARIABLE SECTION VBV GRID

Publications (2)

Publication Number Publication Date
FR3034462A1 true FR3034462A1 (en) 2016-10-07
FR3034462B1 FR3034462B1 (en) 2017-03-24

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
FR1552811A Active FR3034462B1 (en) 2015-04-01 2015-04-01 TURBOMACHINE DISCHARGE VEIN CONDUIT COMPRISING A VARIABLE SECTION VBV GRID

Country Status (1)

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FR (1) FR3034462B1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10480454B2 (en) 2015-06-17 2019-11-19 Safran Aircraft Engines Bleed flow duct for a turbomachine comprising a passively actuated variable cross section VBV grating
FR3107086A1 (en) * 2020-02-10 2021-08-13 Safran Aircraft Engines Pressure relief valve with coordinated door and vane
FR3126143A1 (en) * 2021-08-13 2023-02-17 Safran Aircraft Engines Intermediate housing hub incorporating a secondary flow deflector
GB2622626A (en) * 2022-09-23 2024-03-27 Gkn Aerospace Sweden Ab Duct arrangement

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2653699A2 (en) * 2012-04-17 2013-10-23 General Electric Company Modular louver system
CA2887351A1 (en) * 2012-10-22 2014-05-01 General Electric Company Gas turbine engine variable bleed valve for ice extraction
WO2015011392A1 (en) * 2013-07-23 2015-01-29 Snecma Intermediate housing hub for an aircraft turbofan, including air guide deflectors

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2653699A2 (en) * 2012-04-17 2013-10-23 General Electric Company Modular louver system
CA2887351A1 (en) * 2012-10-22 2014-05-01 General Electric Company Gas turbine engine variable bleed valve for ice extraction
WO2015011392A1 (en) * 2013-07-23 2015-01-29 Snecma Intermediate housing hub for an aircraft turbofan, including air guide deflectors

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10480454B2 (en) 2015-06-17 2019-11-19 Safran Aircraft Engines Bleed flow duct for a turbomachine comprising a passively actuated variable cross section VBV grating
FR3107086A1 (en) * 2020-02-10 2021-08-13 Safran Aircraft Engines Pressure relief valve with coordinated door and vane
FR3126143A1 (en) * 2021-08-13 2023-02-17 Safran Aircraft Engines Intermediate housing hub incorporating a secondary flow deflector
GB2622626A (en) * 2022-09-23 2024-03-27 Gkn Aerospace Sweden Ab Duct arrangement

Also Published As

Publication number Publication date
FR3034462B1 (en) 2017-03-24

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