FR3071539B1 - Joint d'etancheite a labyrinthe pour une turbomachine d'aeronef - Google Patents

Joint d'etancheite a labyrinthe pour une turbomachine d'aeronef Download PDF

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Publication number
FR3071539B1
FR3071539B1 FR1758917A FR1758917A FR3071539B1 FR 3071539 B1 FR3071539 B1 FR 3071539B1 FR 1758917 A FR1758917 A FR 1758917A FR 1758917 A FR1758917 A FR 1758917A FR 3071539 B1 FR3071539 B1 FR 3071539B1
Authority
FR
France
Prior art keywords
body part
peripheral body
wiper
labyrinth seal
annular
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
FR1758917A
Other languages
English (en)
Other versions
FR3071539A1 (fr
Inventor
Clement Jarrossay
Camille Francois Verron Guilhem
Guy Judet Maurice
Raphael Laroche Clement
Michel Maurice Giliberti Guillaume
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 FR1758917A priority Critical patent/FR3071539B1/fr
Priority to GB1815221.5A priority patent/GB2577268B/en
Priority to US16/140,439 priority patent/US10947857B2/en
Publication of FR3071539A1 publication Critical patent/FR3071539A1/fr
Application granted granted Critical
Publication of FR3071539B1 publication Critical patent/FR3071539B1/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
    • 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
    • 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
    • F01D11/001—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between stator blade and rotor
    • 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
    • F01D11/08—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator
    • F01D11/12—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator using a rubstrip, e.g. erodible. deformable or resiliently-biased part
    • F01D11/122—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator using a rubstrip, e.g. erodible. deformable or resiliently-biased part with erodable or abradable material
    • 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
    • F05D2240/55—Seals
    • 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
    • F05D2250/14—Two-dimensional elliptical
    • F05D2250/141—Two-dimensional elliptical circular
    • 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
    • F05D2250/20—Three-dimensional
    • F05D2250/29—Three-dimensional machined; miscellaneous
    • F05D2250/293—Three-dimensional machined; miscellaneous lathed, e.g. rotation symmetrical
    • 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
    • F16J15/44—Free-space packings
    • F16J15/447—Labyrinth packings
    • F16J15/4472—Labyrinth packings with axial path
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)

Abstract

Joint d'étanchéité à labyrinthe pour une turbomachine, en particulier d'aéronef, comportant un élément de rotor (14) tournant autour d'un axe de rotation (A), et un élément de stator (16) s'étendant autour de l'élément de rotor, l'élément de rotor (14) comportant une série de léchette(s) (12) annulaire(s) s'étendant radialement vers l'extérieur et entourée par au moins un élément abradable (18) porté par l'élément de stator (16), chaque léchette (12) comportant une partie de corps périphérique interne (12a), une partie de corps périphérique externe (12b) et une face annulaire amont (20a) d'impact d'un flux d'air en fonctionnement, caractérisé en ce qu'au moins une léchette (12) présente, en observation du côté de ladite face annulaire amont (20a), une première cavité annulaire (22) à section incurvée concave au niveau de sa partie de corps périphérique interne (12a), et une deuxième cavité annulaire (24) à section incurvée concave au niveau de sa partie de corps périphérique externe (12b).
FR1758917A 2017-09-26 2017-09-26 Joint d'etancheite a labyrinthe pour une turbomachine d'aeronef Active FR3071539B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR1758917A FR3071539B1 (fr) 2017-09-26 2017-09-26 Joint d'etancheite a labyrinthe pour une turbomachine d'aeronef
GB1815221.5A GB2577268B (en) 2017-09-26 2018-09-18 Labyrinth seal for a turbine engine of an aircraft
US16/140,439 US10947857B2 (en) 2017-09-26 2018-09-24 Labyrinth seal for a turbine engine of an aircraft

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1758917A FR3071539B1 (fr) 2017-09-26 2017-09-26 Joint d'etancheite a labyrinthe pour une turbomachine d'aeronef
FR1758917 2017-09-26

Publications (2)

Publication Number Publication Date
FR3071539A1 FR3071539A1 (fr) 2019-03-29
FR3071539B1 true FR3071539B1 (fr) 2020-06-05

Family

ID=60382388

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1758917A Active FR3071539B1 (fr) 2017-09-26 2017-09-26 Joint d'etancheite a labyrinthe pour une turbomachine d'aeronef

Country Status (3)

Country Link
US (1) US10947857B2 (fr)
FR (1) FR3071539B1 (fr)
GB (1) GB2577268B (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3095025B1 (fr) * 2019-04-12 2021-03-05 Safran Aircraft Engines Joint d’étanchéité à labyrinthe comportant un élément abradable à densité variable de cellules
CN116063800B (zh) * 2023-02-03 2024-05-28 六安江淮电机有限公司 一种电机用自润滑氟硅橡胶密封圈及其制备方法

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5143383A (en) * 1984-06-04 1992-09-01 General Electric Company Stepped tooth rotating labyrinth seal
US5639095A (en) * 1988-01-04 1997-06-17 Twentieth Technology Low-leakage and low-instability labyrinth seal
DE4307361A1 (de) 1993-03-09 1994-09-15 Wolfgang Mohr Rütteltisch
US5429478A (en) * 1994-03-31 1995-07-04 United Technologies Corporation Airfoil having a seal and an integral heat shield
DE69513030T2 (de) * 1994-08-24 2000-06-08 United Technologies Corp Drehbares dichtungselement
US7445213B1 (en) * 2006-06-14 2008-11-04 Florida Turbine Technologies, Inc. Stepped labyrinth seal
US8167547B2 (en) * 2007-03-05 2012-05-01 United Technologies Corporation Gas turbine engine with canted pocket and canted knife edge seal
US8075256B2 (en) * 2008-09-25 2011-12-13 Siemens Energy, Inc. Ingestion resistant seal assembly
US8262356B2 (en) * 2009-01-30 2012-09-11 General Electric Company Rotor chamber cover member having aperture for dirt separation and related turbine
GB201013003D0 (en) * 2010-08-03 2010-09-15 Rolls Royce Plc A seal assembly
JP5709447B2 (ja) * 2010-09-28 2015-04-30 三菱日立パワーシステムズ株式会社 タービン
US20120091662A1 (en) * 2010-10-19 2012-04-19 General Electric Company Labyrinth seal system
DE202011105609U1 (de) * 2011-09-12 2011-10-13 Alstom Technology Ltd. Labyrinthdichtung
JP6344735B2 (ja) * 2014-01-30 2018-06-20 三菱重工業株式会社 シール構造、及び回転機械
JP6530918B2 (ja) * 2015-01-22 2019-06-12 三菱日立パワーシステムズ株式会社 タービン
US9938840B2 (en) * 2015-02-10 2018-04-10 United Technologies Corporation Stator vane with platform having sloped face
GB201717015D0 (en) * 2017-10-17 2017-11-29 Rolls Royce Plc Fluid seal

Also Published As

Publication number Publication date
GB2577268A (en) 2020-03-25
FR3071539A1 (fr) 2019-03-29
US20190093494A1 (en) 2019-03-28
US10947857B2 (en) 2021-03-16
GB201815221D0 (en) 2018-10-31
GB2577268B (en) 2022-11-09

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