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FR3120895B1 - LABYRINTH SEALING DEVICE - Google Patents

LABYRINTH SEALING DEVICE Download PDF

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Publication number
FR3120895B1
FR3120895B1 FR2102578A FR2102578A FR3120895B1 FR 3120895 B1 FR3120895 B1 FR 3120895B1 FR 2102578 A FR2102578 A FR 2102578A FR 2102578 A FR2102578 A FR 2102578A FR 3120895 B1 FR3120895 B1 FR 3120895B1
Authority
FR
France
Prior art keywords
labyrinth
sealing
stator
sealing device
rotor
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
FR2102578A
Other languages
French (fr)
Other versions
FR3120895A1 (en
Inventor
Elyse Amandine Tabouret
Tangi Rumon Brusq
Vincent Gérard Michel Moreau
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 FR2102578A priority Critical patent/FR3120895B1/en
Publication of FR3120895A1 publication Critical patent/FR3120895A1/en
Application granted granted Critical
Publication of FR3120895B1 publication Critical patent/FR3120895B1/en
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
    • 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
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/02—Blade-carrying members, e.g. rotors
    • F01D5/06—Rotors for more than one axial stage, e.g. of drum or multiple disc type; Details thereof, e.g. shafts, shaft connections
    • F01D5/066—Connecting means for joining rotor-discs or rotor-elements together, e.g. by a central bolt, by clamps
    • 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
    • F16J15/444—Free-space packings with facing materials having honeycomb-like structure
    • 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
    • F16J15/445—Free-space packings with means for adjusting the clearance
    • 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
    • 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
    • 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
    • F05D2230/90—Coating; Surface treatment
    • 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
    • F05D2250/28—Three-dimensional patterned
    • F05D2250/283—Three-dimensional patterned honeycomb
    • 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
    • F05D2250/70—Shape
    • F05D2250/71—Shape curved
    • 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
    • F05D2250/70—Shape
    • F05D2250/71—Shape curved
    • F05D2250/711—Shape curved convex
    • 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
    • F05D2250/70—Shape
    • F05D2250/71—Shape curved
    • F05D2250/712—Shape curved concave

Landscapes

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

Abstract

La présente invention concerne un dispositif de joint d’étanchéité à labyrinthe (100) pour une turbomachine, en particulier d’aéronef, comportant un élément de rotor (101) s’étendant autour d’un axe longitudinal, et un élément de stator (111) s’étendant autour de l’élément de rotor (101), l’élément de rotor (101) comportant une pluralité de léchettes d'étanchéité (102) annulaires, entourées par au moins un élément abradable (112), porté par une première partie (111A) dudit élément de stator (111), pour former un labyrinthe d'étanchéité (103), ladite première partie (111A) étant prolongée vers l'aval par une deuxième partie annulaire (111B) s’étendant radialement. Ce dispositif est remarquable en ce que la deuxième partie (111B) de l’élément de stator (111) comporte un élément de redirection (113), disposé en vis-à-vis du labyrinthe d'étanchéité (103), de manière à former un déflecteur pour un flux d’air de fuite (F) issu dudit labyrinthe d'étanchéité (103). Figure pour l’abrégé : Fig. 4The present invention relates to a labyrinth seal device (100) for a turbomachine, in particular an aircraft, comprising a rotor element (101) extending around a longitudinal axis, and a stator element ( 111) extending around the rotor element (101), the rotor element (101) comprising a plurality of annular sealing lips (102), surrounded by at least one abradable element (112), carried by a first part (111A) of said stator element (111), to form a sealing labyrinth (103), said first part (111A) being extended downstream by a second annular part (111B) extending radially. This device is remarkable in that the second part (111B) of the stator element (111) comprises a redirection element (113), arranged opposite the sealing labyrinth (103), so as to forming a deflector for a flow of leaking air (F) from said sealing labyrinth (103). Figure for abstract: Fig. 4

FR2102578A 2021-03-16 2021-03-16 LABYRINTH SEALING DEVICE Active FR3120895B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR2102578A FR3120895B1 (en) 2021-03-16 2021-03-16 LABYRINTH SEALING DEVICE

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2102578 2021-03-16
FR2102578A FR3120895B1 (en) 2021-03-16 2021-03-16 LABYRINTH SEALING DEVICE

Publications (2)

Publication Number Publication Date
FR3120895A1 FR3120895A1 (en) 2022-09-23
FR3120895B1 true FR3120895B1 (en) 2024-07-12

Family

ID=76601285

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2102578A Active FR3120895B1 (en) 2021-03-16 2021-03-16 LABYRINTH SEALING DEVICE

Country Status (1)

Country Link
FR (1) FR3120895B1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5218816A (en) * 1992-01-28 1993-06-15 General Electric Company Seal exit flow discourager
FR2869094B1 (en) 2004-04-15 2006-07-21 Snecma Moteurs Sa ANNULAR COMBUSTION CHAMBER OF INTERNAL FLANGE TURBOMACHINE WITH IMPROVED FASTENING
US8075256B2 (en) * 2008-09-25 2011-12-13 Siemens Energy, Inc. Ingestion resistant seal assembly
JP7086595B2 (en) * 2017-12-28 2022-06-20 三菱重工航空エンジン株式会社 Aircraft gas turbine

Also Published As

Publication number Publication date
FR3120895A1 (en) 2022-09-23

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