FR3104205B1 - Pressurisation d’enceintes de lubrification dans une turbomachine a turbine contrarotative - Google Patents

Pressurisation d’enceintes de lubrification dans une turbomachine a turbine contrarotative Download PDF

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Publication number
FR3104205B1
FR3104205B1 FR1914014A FR1914014A FR3104205B1 FR 3104205 B1 FR3104205 B1 FR 3104205B1 FR 1914014 A FR1914014 A FR 1914014A FR 1914014 A FR1914014 A FR 1914014A FR 3104205 B1 FR3104205 B1 FR 3104205B1
Authority
FR
France
Prior art keywords
turbine
turbomachine
contrarotary
pressurization
bearings
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
FR1914014A
Other languages
English (en)
Other versions
FR3104205A1 (fr
Inventor
Paco Maurer
Julien Fabien Patrick Becoulet
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 FR1914014A priority Critical patent/FR3104205B1/fr
Publication of FR3104205A1 publication Critical patent/FR3104205A1/fr
Application granted granted Critical
Publication of FR3104205B1 publication Critical patent/FR3104205B1/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
    • F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
    • F02C3/04—Gas-turbine plants characterised by the use of combustion products as the working fluid having a turbine driving a compressor
    • F02C3/06—Gas-turbine plants characterised by the use of combustion products as the working fluid having a turbine driving a compressor the compressor comprising only axial stages
    • F02C3/067—Gas-turbine plants characterised by the use of combustion products as the working fluid having a turbine driving a compressor the compressor comprising only axial stages having counter-rotating rotors
    • 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
    • F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
    • F01D11/02—Preventing or minimising internal leakage of working-fluid, e.g. between stages by non-contact sealings, e.g. of labyrinth type
    • F01D11/04—Preventing or minimising internal leakage of working-fluid, e.g. between stages by non-contact sealings, e.g. of labyrinth type using sealing fluid, e.g. steam
    • 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
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/18—Lubricating arrangements
    • F01D25/183—Sealing means
    • 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
    • F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
    • F02C3/04—Gas-turbine plants characterised by the use of combustion products as the working fluid having a turbine driving a compressor
    • F02C3/107—Gas-turbine plants characterised by the use of combustion products as the working fluid having a turbine driving a compressor with two or more rotors connected by power transmission
    • 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
    • F02C7/06—Arrangements of bearings; Lubricating
    • 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
    • F02C7/36—Power transmission arrangements between the different shafts of the gas turbine plant, or between the gas-turbine plant and the power user
    • 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
    • F05D2260/40—Transmission of power
    • F05D2260/403—Transmission of power through the shape of the drive components
    • F05D2260/4031—Transmission of power through the shape of the drive components as in toothed gearing
    • F05D2260/40311—Transmission of power through the shape of the drive components as in toothed gearing of the epicyclical, planetary or differential type
    • 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
    • F05D2260/608—Aeration, ventilation, dehumidification or moisture removal of closed spaces
    • 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
    • F05D2260/98—Lubrication

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • General Details Of Gearings (AREA)

Abstract

Turbomachine (10) à turbine contrarotative pour un aéronef, comportant : - un corps haute pression, - une turbine basse pression contrarotative (22), - un réducteur mécanique (42) à train épicycloïdal de type planétaire, - des paliers (56-62) de guidage des arbres de turbine (36, 38), caractérisée en ce que lesdits seconds paliers (56, 58) sont logés dans une enceinte de lubrification (84) alimentée en huile et comportant des joints d’étanchéité dynamique (84a, 84b), ces joints étant alimentés en air pressurisé par des circuits de pressurisation (C1, C2) distincts. Figure pour l'abrégé : Figure 3
FR1914014A 2019-12-10 2019-12-10 Pressurisation d’enceintes de lubrification dans une turbomachine a turbine contrarotative Active FR3104205B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1914014A FR3104205B1 (fr) 2019-12-10 2019-12-10 Pressurisation d’enceintes de lubrification dans une turbomachine a turbine contrarotative

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1914014A FR3104205B1 (fr) 2019-12-10 2019-12-10 Pressurisation d’enceintes de lubrification dans une turbomachine a turbine contrarotative
FR1914014 2019-12-10

Publications (2)

Publication Number Publication Date
FR3104205A1 FR3104205A1 (fr) 2021-06-11
FR3104205B1 true FR3104205B1 (fr) 2021-11-19

Family

ID=69700142

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1914014A Active FR3104205B1 (fr) 2019-12-10 2019-12-10 Pressurisation d’enceintes de lubrification dans une turbomachine a turbine contrarotative

Country Status (1)

Country Link
FR (1) FR3104205B1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7458202B2 (en) * 2004-10-29 2008-12-02 General Electric Company Lubrication system for a counter-rotating turbine engine and method of assembling same
US8191352B2 (en) * 2008-12-19 2012-06-05 General Electric Company Geared differential speed counter-rotatable low pressure turbine
FR2944558B1 (fr) * 2009-04-17 2014-05-02 Snecma Moteur a turbine a gaz double corps pourvu d'un palier de turbine bp supplementaire.
US10508546B2 (en) * 2017-09-20 2019-12-17 General Electric Company Turbomachine with alternatingly spaced turbine rotor blades

Also Published As

Publication number Publication date
FR3104205A1 (fr) 2021-06-11

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