FR3078740B1 - Joint d'etancheite dynamique a lechette comprenant une partie active en saillie circonferentiellement limitee - Google Patents

Joint d'etancheite dynamique a lechette comprenant une partie active en saillie circonferentiellement limitee Download PDF

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Publication number
FR3078740B1
FR3078740B1 FR1852118A FR1852118A FR3078740B1 FR 3078740 B1 FR3078740 B1 FR 3078740B1 FR 1852118 A FR1852118 A FR 1852118A FR 1852118 A FR1852118 A FR 1852118A FR 3078740 B1 FR3078740 B1 FR 3078740B1
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FR
France
Prior art keywords
active
surface part
sleeve gasket
limited surface
dynamic sleeve
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
FR1852118A
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English (en)
Other versions
FR3078740A1 (fr
Inventor
Antonio Cremildo Arantes
Franck Robert Drouet
Lucas Laurent Michel Roger Lorphelin
Aurelien Rene-Pierre Massot
Mathieu Charles Jean Verdiere
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 FR1852118A priority Critical patent/FR3078740B1/fr
Publication of FR3078740A1 publication Critical patent/FR3078740A1/fr
Application granted granted Critical
Publication of FR3078740B1 publication Critical patent/FR3078740B1/fr
Active legal-status Critical Current
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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
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/22—Blade-to-blade connections, e.g. for damping vibrations
    • 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
    • F01D11/08—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator
    • 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
    • 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
    • F01D5/12—Blades
    • F01D5/14—Form or construction
    • F01D5/20—Specially-shaped blade tips to seal space between tips and stator

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

Pour remédier à des risques de blocage de rotor au sein d'une turbomachine, un joint d'étanchéité dynamique (36) comprend une partie annuaire fixe (40) pourvue d'une pièce d'usure (42), et une partie tournante (46) comportant un support annulaire (47) et au moins une léchette annulaire (60) présentant une extrémité libre (50) disposée en regard de la pièce d'usure (42), et comprenant une partie nominale (62), et une partie active (64) formée en saillie par rapport à la partie nominale (62), en regard de la pièce d'usure (42), et présentant une étendue circonférentielle (CW) limitée.
FR1852118A 2018-03-12 2018-03-12 Joint d'etancheite dynamique a lechette comprenant une partie active en saillie circonferentiellement limitee Active FR3078740B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1852118A FR3078740B1 (fr) 2018-03-12 2018-03-12 Joint d'etancheite dynamique a lechette comprenant une partie active en saillie circonferentiellement limitee

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1852118 2018-03-12
FR1852118A FR3078740B1 (fr) 2018-03-12 2018-03-12 Joint d'etancheite dynamique a lechette comprenant une partie active en saillie circonferentiellement limitee

Publications (2)

Publication Number Publication Date
FR3078740A1 FR3078740A1 (fr) 2019-09-13
FR3078740B1 true FR3078740B1 (fr) 2020-04-03

Family

ID=62222969

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1852118A Active FR3078740B1 (fr) 2018-03-12 2018-03-12 Joint d'etancheite dynamique a lechette comprenant une partie active en saillie circonferentiellement limitee

Country Status (1)

Country Link
FR (1) FR3078740B1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3109182B1 (fr) * 2020-04-10 2023-03-24 Safran Aircraft Engines Ensemble d’etancheite pour une turbomachine

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2977909B1 (fr) * 2011-07-12 2016-07-15 Snecma Aube de rotor pour une turbomachine
FR3001759B1 (fr) * 2013-02-07 2015-01-16 Snecma Rouge aubagee de turbomachine
FR3027622B1 (fr) * 2014-10-28 2018-11-09 Safran Aircraft Engines Aube de rotor a pilotage de jeu actif, ensemble tournant et son procede de fonctionnement
US10422240B2 (en) * 2016-03-16 2019-09-24 United Technologies Corporation Turbine engine blade outer air seal with load-transmitting cover plate
FR3053386B1 (fr) * 2016-06-29 2020-03-20 Safran Helicopter Engines Roue de turbine
FR3055353B1 (fr) * 2016-08-25 2018-09-21 Safran Aircraft Engines Ensemble formant joint d'etancheite a labyrinthe pour une turbomachine comportant un abradable et des lechettes inclines

Also Published As

Publication number Publication date
FR3078740A1 (fr) 2019-09-13

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