FR3042552B1 - Joint-labyrinthe d'etancheite a dents geometriquement optimisees - Google Patents

Joint-labyrinthe d'etancheite a dents geometriquement optimisees Download PDF

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Publication number
FR3042552B1
FR3042552B1 FR1559869A FR1559869A FR3042552B1 FR 3042552 B1 FR3042552 B1 FR 3042552B1 FR 1559869 A FR1559869 A FR 1559869A FR 1559869 A FR1559869 A FR 1559869A FR 3042552 B1 FR3042552 B1 FR 3042552B1
Authority
FR
France
Prior art keywords
seal
stator
rotor
abradable
intended
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
FR1559869A
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English (en)
Other versions
FR3042552A1 (fr
Inventor
Corentin Delebarre
Julien Gurt Santanach
Vincent Dutilh
Gilles Dessein
Vincent Wagner
Jean Denape
Jean-Yves Paris
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 Helicopter Engines SAS
Original Assignee
Safran Helicopter Engines SAS
Turbomeca SA
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Publication date
Application filed by Safran Helicopter Engines SAS, Turbomeca SA filed Critical Safran Helicopter Engines SAS
Priority to FR1559869A priority Critical patent/FR3042552B1/fr
Publication of FR3042552A1 publication Critical patent/FR3042552A1/fr
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Publication of FR3042552B1 publication Critical patent/FR3042552B1/fr
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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
    • F01D11/08—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
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/08—Sealings
    • F04D29/10—Shaft sealings
    • F04D29/102—Shaft sealings especially adapted for elastic fluid pumps
    • 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
    • F05D2240/20—Rotors
    • F05D2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
    • F05D2240/307—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor related to the tip of a rotor blade

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

L'invention concerne un joint-labyrinthe d'étanchéité destiné à être agencé entre deux pièces concentriques de révolution autour d'un axe (12) de rotation d'une turbomachine, dites respectivement rotor (11) et stator (10), ledit joint-labyrinthe comprenant : un matériau (6) abradable destiné à couvrir au moins une partie dudit stator (10) en regard du rotor (11) ; des dents (8) destinées à être portées par ledit rotor (11) en regard dudit matériau (6) abradable dudit stator (10) et comprenant chacune une portion d'extrémité radiale (9) configurée pour pouvoir pénétrer dans ledit matériau (6) abradable en cas de touche entre ledit rotor (11) et ledit stator (10), ladite portion d'extrémité radiale (9) de chaque dent comprenant en outre une paroi distale (21) présentant une dimension axiale inférieure à la dimension axiale maximale de la dent et une paroi latérale (22) reliée à ladite paroi distale et formant avec elle un angle prédéterminé.
FR1559869A 2015-10-16 2015-10-16 Joint-labyrinthe d'etancheite a dents geometriquement optimisees Active FR3042552B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1559869A FR3042552B1 (fr) 2015-10-16 2015-10-16 Joint-labyrinthe d'etancheite a dents geometriquement optimisees

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1559869A FR3042552B1 (fr) 2015-10-16 2015-10-16 Joint-labyrinthe d'etancheite a dents geometriquement optimisees
FR1559869 2015-10-16

Publications (2)

Publication Number Publication Date
FR3042552A1 FR3042552A1 (fr) 2017-04-21
FR3042552B1 true FR3042552B1 (fr) 2020-06-26

Family

ID=55072909

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1559869A Active FR3042552B1 (fr) 2015-10-16 2015-10-16 Joint-labyrinthe d'etancheite a dents geometriquement optimisees

Country Status (1)

Country Link
FR (1) FR3042552B1 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060228209A1 (en) * 2005-04-12 2006-10-12 General Electric Company Abradable seal between a turbine rotor and a stationary component
US20080018054A1 (en) * 2006-07-20 2008-01-24 General Electric Company Aspirating labyrinth seal
EP2886801B1 (fr) * 2013-12-20 2019-04-24 Ansaldo Energia IP UK Limited Système d'étanchéité pour une turbine à gaz et turbine à gaz associée

Also Published As

Publication number Publication date
FR3042552A1 (fr) 2017-04-21

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