FR3036138B1 - Turbomachine comportant un melangeur a plusieurs series de lobes - Google Patents

Turbomachine comportant un melangeur a plusieurs series de lobes Download PDF

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Publication number
FR3036138B1
FR3036138B1 FR1554231A FR1554231A FR3036138B1 FR 3036138 B1 FR3036138 B1 FR 3036138B1 FR 1554231 A FR1554231 A FR 1554231A FR 1554231 A FR1554231 A FR 1554231A FR 3036138 B1 FR3036138 B1 FR 3036138B1
Authority
FR
France
Prior art keywords
mixer
lobes
turbomachine
radial
general
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
FR1554231A
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English (en)
Other versions
FR3036138A1 (fr
Inventor
Raymond Julien Prouteau Jackie
Gerard Chanez Philippe
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
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 Safran Aircraft Engines SAS, SNECMA SAS filed Critical Safran Aircraft Engines SAS
Priority to FR1554231A priority Critical patent/FR3036138B1/fr
Publication of FR3036138A1 publication Critical patent/FR3036138A1/fr
Application granted granted Critical
Publication of FR3036138B1 publication Critical patent/FR3036138B1/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
    • F02K—JET-PROPULSION PLANTS
    • F02K1/00—Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto
    • F02K1/46—Nozzles having means for adding air to the jet or for augmenting the mixing region between the jet and the ambient air, e.g. for silencing
    • F02K1/48—Corrugated nozzles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02K—JET-PROPULSION PLANTS
    • F02K1/00—Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto
    • F02K1/38—Introducing air inside the jet
    • F02K1/386—Introducing air inside the jet mixing devices in the jet pipe, e.g. for mixing primary and secondary flow
    • 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
    • F05D2220/323—Application in turbines in gas turbines for aircraft propulsion, e.g. jet engines
    • 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
    • F05D2250/10—Two-dimensional
    • F05D2250/18—Two-dimensional patterned
    • F05D2250/184—Two-dimensional patterned sinusoidal
    • 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
    • F05D2250/60—Structure; Surface texture
    • F05D2250/61—Structure; Surface texture corrugated
    • 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
    • F05D2250/70—Shape
    • 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

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)

Abstract

L'invention concerne un mélangeur à lobes (8) de turbomachine, destiné à être placé à l'extrémité aval d'un capot (4) de séparation des deux veines coaxiales, respectivement interne et externe, le mélangeur (8) étant conformé pour présenter au moins une succession périphérique de lobes (20, 21) d'orientation générale (Y1, Y2) radiale par rapport à un axe longitudinal (LL') du mélangeur, chacun formant une goulotte avec un fond (24, 25) marquant l'extrémité radiale dudit lobe (20, 21), caractérisé en ce qu'il comprend en outre au moins une succession périphérique de lobes (30, 31) d'orientation générale circonférentielle par rapport audit axe longitudinal (LL'), formant une variation de profil transversal marqué par rapport au profil transversal général dudit mélangeur (8) entre les fonds (24, 25) de deux lobes (20, 21) successifs d'orientation radiale.
FR1554231A 2015-05-12 2015-05-12 Turbomachine comportant un melangeur a plusieurs series de lobes Active FR3036138B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1554231A FR3036138B1 (fr) 2015-05-12 2015-05-12 Turbomachine comportant un melangeur a plusieurs series de lobes

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1554231A FR3036138B1 (fr) 2015-05-12 2015-05-12 Turbomachine comportant un melangeur a plusieurs series de lobes
FR1554231 2015-05-12

Publications (2)

Publication Number Publication Date
FR3036138A1 FR3036138A1 (fr) 2016-11-18
FR3036138B1 true FR3036138B1 (fr) 2020-01-31

Family

ID=53801016

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1554231A Active FR3036138B1 (fr) 2015-05-12 2015-05-12 Turbomachine comportant un melangeur a plusieurs series de lobes

Country Status (1)

Country Link
FR (1) FR3036138B1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3065492B1 (fr) * 2017-04-21 2019-11-22 Safran Aircraft Engines Turbomachine comportant un melangeur a plusieurs series de lobes
US11698330B2 (en) * 2019-10-15 2023-07-11 Massachusetts Institute Of Technology Systems, devices, and methods for rheological measurement of yield stress fluids using fractal-like fixtures
CN113464277A (zh) * 2021-07-15 2021-10-01 哈尔滨工程大学 一种带异形波瓣引射混合器的船舶燃气轮机
US20240229740A1 (en) * 2023-01-10 2024-07-11 Pratt & Whitney Canada Corp. Exhaust mixer with protrusions

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB852829A (en) * 1957-04-03 1960-11-02 Rolls Royce Improvements in or relating to gas-turbine jet propulsion engines
FR1254006A (fr) * 1959-03-13 1961-02-17 Rolls Royce Turbo-réacteur à dérivation
US6276127B1 (en) * 1999-06-22 2001-08-21 John R. Alberti Noise suppressing mixer for jet engines
US20070023571A1 (en) * 2005-07-15 2007-02-01 Kawai Ronald T Quiet airplane configuration

Also Published As

Publication number Publication date
FR3036138A1 (fr) 2016-11-18

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