FR3104195B1 - fixation améliorée d’aubages de turbine contrarotative - Google Patents
fixation améliorée d’aubages de turbine contrarotative Download PDFInfo
- 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
Links
- 238000006073 displacement reaction Methods 0.000 abstract 1
Classifications
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- 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
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- 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
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- 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
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- 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.
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)
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 |
-
2019
- 2019-12-10 FR FR1914034A patent/FR3104195B1/fr active Active
Also Published As
Publication number | Publication date |
---|---|
FR3104195A1 (fr) | 2021-06-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PLFP | Fee payment |
Year of fee payment: 2 |
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PLSC | Publication of the preliminary search report |
Effective date: 20210611 |
|
PLFP | Fee payment |
Year of fee payment: 3 |
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PLFP | Fee payment |
Year of fee payment: 4 |
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PLFP | Fee payment |
Year of fee payment: 5 |