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FR2939835B1 - Joint d'etancheite de plateforme dans un rotor de turbomachine, methode pour ameliorer l'etancheite entre une plateforme et une aube de turbomachine. - Google Patents

Joint d'etancheite de plateforme dans un rotor de turbomachine, methode pour ameliorer l'etancheite entre une plateforme et une aube de turbomachine.

Info

Publication number
FR2939835B1
FR2939835B1 FR0858525A FR0858525A FR2939835B1 FR 2939835 B1 FR2939835 B1 FR 2939835B1 FR 0858525 A FR0858525 A FR 0858525A FR 0858525 A FR0858525 A FR 0858525A FR 2939835 B1 FR2939835 B1 FR 2939835B1
Authority
FR
France
Prior art keywords
seal
platform
turbomachine
improving
contact part
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
FR0858525A
Other languages
English (en)
Other versions
FR2939835A1 (fr
Inventor
Jean Bernard Forgue
Patrick Jean Louis Reghezza
Carole Stochmil
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
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 SNECMA SAS filed Critical SNECMA SAS
Priority to FR0858525A priority Critical patent/FR2939835B1/fr
Priority to US12/636,235 priority patent/US8465258B2/en
Publication of FR2939835A1 publication Critical patent/FR2939835A1/fr
Application granted granted Critical
Publication of FR2939835B1 publication Critical patent/FR2939835B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • 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
    • F01D5/3007—Fixing blades to rotors; Blade roots ; Blade spacers of axial insertion type
    • 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
    • F01D11/005—Sealing means between non relatively rotating elements
    • F01D11/006—Sealing the gap between rotor blades or blades and rotor
    • F01D11/008—Sealing the gap between rotor blades or blades and rotor by spacer elements between the blades, e.g. independent interblade platforms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/021—Sealings between relatively-stationary surfaces with elastic packing
    • F16J15/022—Sealings between relatively-stationary surfaces with elastic packing characterised by structure or material
    • F16J15/024—Sealings between relatively-stationary surfaces with elastic packing characterised by structure or material the packing being locally weakened in order to increase elasticity
    • F16J15/025—Sealings between relatively-stationary surfaces with elastic packing characterised by structure or material the packing being locally weakened in order to increase elasticity and with at least one flexible lip
    • 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
    • F05D2240/00—Components
    • F05D2240/80—Platforms for stationary or moving blades
    • 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
    • F05D2260/94—Functionality given by mechanical stress related aspects such as low cycle fatigue [LCF] of high cycle fatigue [HCF]
    • F05D2260/941—Functionality given by mechanical stress related aspects such as low cycle fatigue [LCF] of high cycle fatigue [HCF] particularly aimed at mechanical or thermal stress reduction
    • 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
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/40—Organic materials
    • F05D2300/43—Synthetic polymers, e.g. plastics; Rubber
    • F05D2300/431—Rubber
    • 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
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49316—Impeller making
    • Y10T29/4932—Turbomachine making
    • Y10T29/49321—Assembling individual fluid flow interacting members, e.g., blades, vanes, buckets, on rotary support member

Landscapes

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

Abstract

La présente invention porte sur un joint d'étanchéité (16) en matériau élastomère de plateforme (4) intercalaire entre deux aubes adjacentes dans un rotor de turbomachine, de forme allongée et comprenant transversalement une partie de contact, une partie d'attache et une partie flexible entre la partie d'attache et la partie de contact. Le joint est caractérisé par le fait qu'il comprend l'un des moyens suivants, renfort local de la partie flexible, partie de contact en forme de lèvre, partie de contact non continue dans le sens de la longueur, permettant d'éviter les déchirements qui résulteraient des efforts centrifuges sur le joint.
FR0858525A 2008-12-12 2008-12-12 Joint d'etancheite de plateforme dans un rotor de turbomachine, methode pour ameliorer l'etancheite entre une plateforme et une aube de turbomachine. Active FR2939835B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR0858525A FR2939835B1 (fr) 2008-12-12 2008-12-12 Joint d'etancheite de plateforme dans un rotor de turbomachine, methode pour ameliorer l'etancheite entre une plateforme et une aube de turbomachine.
US12/636,235 US8465258B2 (en) 2008-12-12 2009-12-11 Platform seal in a turbomachine rotor, method for improving the seal between a platform and a turbomachine blade

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0858525A FR2939835B1 (fr) 2008-12-12 2008-12-12 Joint d'etancheite de plateforme dans un rotor de turbomachine, methode pour ameliorer l'etancheite entre une plateforme et une aube de turbomachine.

Publications (2)

Publication Number Publication Date
FR2939835A1 FR2939835A1 (fr) 2010-06-18
FR2939835B1 true FR2939835B1 (fr) 2017-06-09

Family

ID=40912118

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0858525A Active FR2939835B1 (fr) 2008-12-12 2008-12-12 Joint d'etancheite de plateforme dans un rotor de turbomachine, methode pour ameliorer l'etancheite entre une plateforme et une aube de turbomachine.

Country Status (2)

Country Link
US (1) US8465258B2 (fr)
FR (1) FR2939835B1 (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2939836B1 (fr) 2008-12-12 2015-05-15 Snecma Joint d'etancheite de plateforme dans un rotor de turbomachine
FR2945074B1 (fr) * 2009-04-29 2011-06-03 Snecma Cale d'aube de soufflante renforcee
US20120156045A1 (en) * 2010-12-17 2012-06-21 General Electric Company Methods, systems and apparatus relating to root and platform configurations for turbine rotor blades
FR2987086B1 (fr) 2012-02-22 2014-03-21 Snecma Joint lineaire de plateforme inter-aubes
US10024177B2 (en) * 2012-05-15 2018-07-17 United Technologies Corporation Detachable fan blade platform and method of repairing same
US9267386B2 (en) * 2012-06-29 2016-02-23 United Technologies Corporation Fairing assembly
FR2992676B1 (fr) * 2012-06-29 2014-08-01 Snecma Plateforme inter-aubes pour une soufflante, rotor d'une soufflante et procede de fabrication associe
US10344601B2 (en) * 2012-08-17 2019-07-09 United Technologies Corporation Contoured flowpath surface
US9845699B2 (en) * 2013-03-15 2017-12-19 Gkn Aerospace Services Structures Corp. Fan spacer having unitary over molded feature
US20170218782A1 (en) * 2014-08-22 2017-08-03 Siemens Energy, Inc. Modular turbine blade with separate platform support system
FR3038653B1 (fr) * 2015-07-08 2017-08-04 Snecma Assemblage d'une plateforme rapportee d'aube de soufflante sur un disque de soufflante
US9976426B2 (en) * 2015-07-21 2018-05-22 United Technologies Corporation Fan platform with stiffening feature
US10215046B2 (en) * 2015-11-23 2019-02-26 United Technologies Corporation Airfoil platform having dual pin apertures and a vertical stiffener
EP3438410B1 (fr) 2017-08-01 2021-09-29 General Electric Company Système d'étanchéité pour machine rotative
US10927683B2 (en) * 2017-12-14 2021-02-23 Safran Aircraft Engines Damping device
FR3081520B1 (fr) * 2018-05-23 2021-05-21 Safran Aircraft Engines Disque ameliore de soufflante de turbomachine
FR3089270B1 (fr) * 2018-11-29 2020-11-13 Safran Aircraft Engines Joint d’etanchéité pour porte de vanne de décharge d’une turbomachine

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4183720A (en) * 1978-01-03 1980-01-15 The United States Of America As Represented By The Secretary Of The Air Force Composite fan blade platform double wedge centrifugal seal
US4183863A (en) * 1978-04-18 1980-01-15 Union Carbide Corporation Conversion of cyclohexanol to ε-caprolactone
US4580946A (en) * 1984-11-26 1986-04-08 General Electric Company Fan blade platform seal
GB9602129D0 (en) * 1996-02-02 1996-04-03 Rolls Royce Plc Rotors for gas turbine engines
GB9915637D0 (en) * 1999-07-06 1999-09-01 Rolls Royce Plc A rotor seal
US6634863B1 (en) * 2000-11-27 2003-10-21 General Electric Company Circular arc multi-bore fan disk assembly
US6579065B2 (en) * 2001-09-13 2003-06-17 General Electric Co. Methods and apparatus for limiting fluid flow between adjacent rotor blades
US20050178168A1 (en) * 2004-02-13 2005-08-18 Jae Kyum Kim Gasket and drum-type washing machine having the same
ES2276625B1 (es) * 2005-12-02 2008-04-16 Bsh Electrodomesticos España, S.A. Junta para lavadora y lavadora con dicha junta.
GB0611031D0 (en) * 2006-06-06 2006-07-12 Rolls Royce Plc An aerofoil stage and a seal for use therein

Also Published As

Publication number Publication date
US20100150724A1 (en) 2010-06-17
FR2939835A1 (fr) 2010-06-18
US8465258B2 (en) 2013-06-18

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