FR3104195B1 - fixation améliorée d’aubages de turbine contrarotative - Google Patents

fixation améliorée d’aubages de turbine contrarotative Download PDF

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Publication number
FR3104195B1
FR3104195B1 FR1914034A FR1914034A FR3104195B1 FR 3104195 B1 FR3104195 B1 FR 3104195B1 FR 1914034 A FR1914034 A FR 1914034A FR 1914034 A FR1914034 A FR 1914034A FR 3104195 B1 FR3104195 B1 FR 3104195B1
Authority
FR
France
Prior art keywords
counter
blades
outer end
rotating turbine
radially outer
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
FR1914034A
Other languages
English (en)
Other versions
FR3104195A1 (fr
Inventor
Patrick Jean Laurent Sultana
Laurent Cédric Zamai
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 FR1914034A priority Critical patent/FR3104195B1/fr
Publication of FR3104195A1 publication Critical patent/FR3104195A1/fr
Application granted granted Critical
Publication of FR3104195B1 publication Critical patent/FR3104195B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • F01D1/00—Non-positive-displacement machines or engines, e.g. steam turbines
    • F01D1/24—Non-positive-displacement machines or engines, e.g. steam turbines characterised by counter-rotating rotors subjected to same working fluid stream without intermediate stator blades or the like
    • F01D1/26—Non-positive-displacement machines or engines, e.g. steam turbines characterised by counter-rotating rotors subjected to same working fluid stream without intermediate stator blades or the like traversed by the working-fluid substantially axially
    • 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
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/30—Fixing blades to rotors; Blade roots ; Blade spacers
    • F01D5/3053—Fixing blades to rotors; Blade roots ; Blade spacers by means of pins
    • 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
    • F01D9/00—Stators
    • F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
    • F01D9/04—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector
    • F01D9/042—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector fixing blades to stators
    • 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
    • F05D2230/00—Manufacture
    • F05D2230/60—Assembly methods
    • F05D2230/64—Assembly methods using positioning or alignment devices for aligning or centring, e.g. pins
    • F05D2230/644—Assembly methods using positioning or alignment devices for aligning or centring, e.g. pins for adjusting the position or the alignment, e.g. wedges or eccenters
    • 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
    • F05D2260/30—Retaining components in desired mutual position
    • F05D2260/31—Retaining bolts or nuts

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

F ixation améliorée d’aubages de turbine contrarotative Turbine contrarotative (C) de turbomachine (10) comprenant un rotor interne, un rotor externe comprenant un tambour externe (50) et une roue mobile aval comportant une pluralité d’aubages (600) mobiles avals, chaque aubage (600) comprenant au moins une aube mobile aval et s’étendant entre le tambour externe et un disque interne (25),une extrémité radialement interne des aubages (600) étant fixée au disque interne (25) par l’intermédiaire d’une liaison boulonnée, et une extrémité radialement externe des aubages (600) étant montée sur le tambour externe (50b) par l’intermédiaire d’un moyen de blocage axial (71, 72), l’extrémité radialement externe des aubages (600) comprenant une première ouverture allongée (622) configurée pour recevoir le moyen de blocage axial (71, 72), la première ouverture allongée (622) et le moyen de blocage axial (71, 72) étant configurés de manière à limiter un déplacement de l’extrémité radialement externe selon une direction axiale, et à permettre un déplacement de l’extrémité radialement externe selon une direction radiale. Figure pour l’abrégé : Fig. 4.
FR1914034A 2019-12-10 2019-12-10 fixation améliorée d’aubages de turbine contrarotative Active FR3104195B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1914034A FR3104195B1 (fr) 2019-12-10 2019-12-10 fixation améliorée d’aubages de turbine contrarotative

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1914034 2019-12-10
FR1914034A FR3104195B1 (fr) 2019-12-10 2019-12-10 fixation améliorée d’aubages de turbine contrarotative

Publications (2)

Publication Number Publication Date
FR3104195A1 FR3104195A1 (fr) 2021-06-11
FR3104195B1 true FR3104195B1 (fr) 2021-12-03

Family

ID=69811189

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1914034A Active FR3104195B1 (fr) 2019-12-10 2019-12-10 fixation améliorée d’aubages de turbine contrarotative

Country Status (1)

Country Link
FR (1) FR3104195B1 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2192238B (en) * 1986-07-02 1990-05-23 Rolls Royce Plc Gas turbine engine power turbine
FR2637321B1 (fr) * 1988-10-05 1990-11-30 Snecma Rotor de turbomachine muni d'un dispositif de fixation des aubes
US7186073B2 (en) * 2004-10-29 2007-03-06 General Electric Company Counter-rotating gas turbine engine and method of assembling same
JP2007064074A (ja) * 2005-08-30 2007-03-15 Toshiba Corp 軸流タービン
US10801442B2 (en) * 2017-02-08 2020-10-13 General Electric Company Counter rotating turbine with reversing reduction gear assembly

Also Published As

Publication number Publication date
FR3104195A1 (fr) 2021-06-11

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