FR3073595B1 - Joint a labyrinthe comprenant une lechette dotee d'un deflecteur - Google Patents

Joint a labyrinthe comprenant une lechette dotee d'un deflecteur Download PDF

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Publication number
FR3073595B1
FR3073595B1 FR1760758A FR1760758A FR3073595B1 FR 3073595 B1 FR3073595 B1 FR 3073595B1 FR 1760758 A FR1760758 A FR 1760758A FR 1760758 A FR1760758 A FR 1760758A FR 3073595 B1 FR3073595 B1 FR 3073595B1
Authority
FR
France
Prior art keywords
deflector
stick
flow
labyrinth joint
wiper
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
FR1760758A
Other languages
English (en)
Other versions
FR3073595A1 (fr
Inventor
Bertrand Guillaume Robin PELLATON
Lucas Benassis
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
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 Helicopter Engines SAS filed Critical Safran Helicopter Engines SAS
Priority to FR1760758A priority Critical patent/FR3073595B1/fr
Priority to EP18821725.1A priority patent/EP3695102B1/fr
Priority to US16/763,390 priority patent/US11143049B2/en
Priority to PCT/IB2018/001314 priority patent/WO2019097286A1/fr
Priority to PL18821725T priority patent/PL3695102T3/pl
Priority to CN201880073495.7A priority patent/CN111356821B/zh
Publication of FR3073595A1 publication Critical patent/FR3073595A1/fr
Application granted granted Critical
Publication of FR3073595B1 publication Critical patent/FR3073595B1/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
    • F01D11/08—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
    • F01D11/127—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 a deformable or crushable structure, e.g. honeycomb
    • 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
    • F01D5/225—Blade-to-blade connections, e.g. for damping vibrations by shrouding
    • 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

Landscapes

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

Abstract

Une léchette (5) de joint d'étanchéité à labyrinthe comprend, se dressant sur une de ses faces latérales (7), un déflecteur (13) qui canalise l'écoulement de gaz tangent à la léchette (5) vers la garniture d'étanchéité (4) en regard, de manière à perturber l'écoulement de fuite (22) à travers le jeu et en diminuer le débit.
FR1760758A 2017-11-15 2017-11-15 Joint a labyrinthe comprenant une lechette dotee d'un deflecteur Active FR3073595B1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
FR1760758A FR3073595B1 (fr) 2017-11-15 2017-11-15 Joint a labyrinthe comprenant une lechette dotee d'un deflecteur
EP18821725.1A EP3695102B1 (fr) 2017-11-15 2018-11-16 Joint à labyrinthe comprenant une léchette dotée d'un déflecteur
US16/763,390 US11143049B2 (en) 2017-11-15 2018-11-16 Labyrinth seal comprising a lip provided with a deflector
PCT/IB2018/001314 WO2019097286A1 (fr) 2017-11-15 2018-11-16 Joint a labyrinthe comprenant une lechette dotee d'un deflecteur
PL18821725T PL3695102T3 (pl) 2017-11-15 2018-11-16 Uszczelnienie labiryntowe zawierające występ wyposażony w deflektor
CN201880073495.7A CN111356821B (zh) 2017-11-15 2018-11-16 包括设有偏转板的唇部的迷宫式密封件

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1760758 2017-11-15
FR1760758A FR3073595B1 (fr) 2017-11-15 2017-11-15 Joint a labyrinthe comprenant une lechette dotee d'un deflecteur

Publications (2)

Publication Number Publication Date
FR3073595A1 FR3073595A1 (fr) 2019-05-17
FR3073595B1 true FR3073595B1 (fr) 2020-02-07

Family

ID=61003196

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1760758A Active FR3073595B1 (fr) 2017-11-15 2017-11-15 Joint a labyrinthe comprenant une lechette dotee d'un deflecteur

Country Status (6)

Country Link
US (1) US11143049B2 (fr)
EP (1) EP3695102B1 (fr)
CN (1) CN111356821B (fr)
FR (1) FR3073595B1 (fr)
PL (1) PL3695102T3 (fr)
WO (1) WO2019097286A1 (fr)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19933445C2 (de) * 1999-07-16 2001-12-13 Mtu Aero Engines Gmbh Dichtring für nicht- hermetische Fluiddichtungen
FR2825411B1 (fr) * 2001-05-31 2003-09-19 Snecma Moteurs Aube de turbine avec lechette d'etancheite
US6890150B2 (en) * 2003-08-12 2005-05-10 General Electric Company Center-located cutter teeth on shrouded turbine blades
FR2893359A1 (fr) * 2005-11-15 2007-05-18 Snecma Sa Lechette annulaire destinee a un laryrinthe d'etancheite, et son procede de fabrication
GB0808206D0 (en) * 2008-05-07 2008-06-11 Rolls Royce Plc A blade arrangement
US20120027573A1 (en) * 2010-08-02 2012-02-02 General Electric Company Seal teeth for seal assembly
FR2980234B1 (fr) 2011-09-16 2016-08-19 Snecma Aube pour turbomachine avec lechettes d'etancheite
ES2773743T3 (es) * 2011-12-13 2020-07-14 Mtu Aero Engines Gmbh Paleta que tiene un conjunto de nervaduras con un recubrimiento abrasivo
JP6167158B2 (ja) * 2015-12-09 2017-07-19 三菱日立パワーシステムズ株式会社 シール構造及びターボ機械

Also Published As

Publication number Publication date
FR3073595A1 (fr) 2019-05-17
US11143049B2 (en) 2021-10-12
EP3695102A1 (fr) 2020-08-19
CN111356821B (zh) 2022-07-15
WO2019097286A1 (fr) 2019-05-23
CN111356821A (zh) 2020-06-30
EP3695102B1 (fr) 2021-12-29
US20210062668A1 (en) 2021-03-04
PL3695102T3 (pl) 2022-05-09

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