FR3078106B1 - Nacelle de turbomachine comprenant une conduite d'evacuation acoustique - Google Patents

Nacelle de turbomachine comprenant une conduite d'evacuation acoustique Download PDF

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Publication number
FR3078106B1
FR3078106B1 FR1851394A FR1851394A FR3078106B1 FR 3078106 B1 FR3078106 B1 FR 3078106B1 FR 1851394 A FR1851394 A FR 1851394A FR 1851394 A FR1851394 A FR 1851394A FR 3078106 B1 FR3078106 B1 FR 3078106B1
Authority
FR
France
Prior art keywords
turbomachine
nacelle
conduit
vent pipe
acoustic vent
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
FR1851394A
Other languages
English (en)
Other versions
FR3078106A1 (fr
Inventor
Bruno Andre Jodet Norman
Paul Francisco Gonzalez Jeremy
David Florian Regnard Josselin
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
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 Safran Aircraft Engines SAS filed Critical Safran Aircraft Engines SAS
Priority to FR1851394A priority Critical patent/FR3078106B1/fr
Publication of FR3078106A1 publication Critical patent/FR3078106A1/fr
Application granted granted Critical
Publication of FR3078106B1 publication Critical patent/FR3078106B1/fr
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
    • 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
    • F02C7/04—Air intakes for gas-turbine plants or jet-propulsion plants
    • F02C7/045—Air intakes for gas-turbine plants or jet-propulsion plants having provisions for noise suppression
    • 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
    • B64D33/00—Arrangements in aircraft of power plant parts or auxiliaries not otherwise provided for
    • B64D33/02—Arrangements in aircraft of power plant parts or auxiliaries not otherwise provided for of combustion air intakes
    • B64D2033/0206—Arrangements in aircraft of power plant parts or auxiliaries not otherwise provided for of combustion air intakes comprising noise reduction means, e.g. acoustic liners
    • 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
    • F05D2250/20—Three-dimensional
    • F05D2250/23—Three-dimensional prismatic
    • F05D2250/232—Three-dimensional prismatic conical
    • 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
    • F05D2250/30—Arrangement of components
    • F05D2250/31—Arrangement of components according to the direction of their main axis or their axis of rotation
    • F05D2250/313—Arrangement of components according to the direction of their main axis or their axis of rotation the axes being perpendicular to each other
    • 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

Abstract

L'invention concerne une nacelle de turbomachine comprenant une paroi annulaire destinée à entourer au moins en partie une turbomachine, la paroi annulaire définissant avec la paroi externe de la turbomachine un conduit secondaire, la nacelle comprenant une conduite dont une première extrémité débouche au sein du conduit secondaire, et dont une deuxième extrémité débouche à l'extérieur de la nacelle, la conduite mettant le conduit secondaire en communication fluidique avec l'extérieur de la nacelle, la paroi intérieure de la conduite présentant, au niveau d'une jonction avec la paroi annulaire, une variation progressive de section transversale, l'impédance acoustique variant ainsi de façon continue entre l'intérieur du conduit secondaire et l'intérieur de la conduite.
FR1851394A 2018-02-19 2018-02-19 Nacelle de turbomachine comprenant une conduite d'evacuation acoustique Active FR3078106B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1851394A FR3078106B1 (fr) 2018-02-19 2018-02-19 Nacelle de turbomachine comprenant une conduite d'evacuation acoustique

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1851394A FR3078106B1 (fr) 2018-02-19 2018-02-19 Nacelle de turbomachine comprenant une conduite d'evacuation acoustique
FR1851394 2018-02-19

Publications (2)

Publication Number Publication Date
FR3078106A1 FR3078106A1 (fr) 2019-08-23
FR3078106B1 true FR3078106B1 (fr) 2020-05-29

Family

ID=61802210

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1851394A Active FR3078106B1 (fr) 2018-02-19 2018-02-19 Nacelle de turbomachine comprenant une conduite d'evacuation acoustique

Country Status (1)

Country Link
FR (1) FR3078106B1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4893110B2 (ja) * 2006-05-31 2012-03-07 株式会社Ｉｈｉ 軸流流体装置
US7766280B2 (en) * 2007-05-29 2010-08-03 United Technologies Corporation Integral suction device with acoustic panel
PL232261B1 (pl) * 2015-11-02 2019-05-31 Gen Electric Zespół silnika turbowentylatorowego i układ do zmniejszania rezonansu w komorze
US10823055B2 (en) * 2016-08-08 2020-11-03 Pratt & Whitney Canada Corp. Bypass duct louver for noise mitigation

Also Published As

Publication number Publication date
FR3078106A1 (fr) 2019-08-23

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