EP2458157B1 - Abriebdichtung eines Stator-Innenrings - Google Patents

Abriebdichtung eines Stator-Innenrings Download PDF

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Publication number
EP2458157B1
EP2458157B1 EP10193061.8A EP10193061A EP2458157B1 EP 2458157 B1 EP2458157 B1 EP 2458157B1 EP 10193061 A EP10193061 A EP 10193061A EP 2458157 B1 EP2458157 B1 EP 2458157B1
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EP
European Patent Office
Prior art keywords
seal
turbomachine
pressure seal
abradable
stator
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
EP10193061.8A
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English (en)
French (fr)
Other versions
EP2458157A1 (de
Inventor
Stéphane Hiernaux
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 Aero Boosters SA
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Techspace Aero SA
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Filing date
Publication date
Application filed by Techspace Aero SA filed Critical Techspace Aero SA
Priority to EP10193061.8A priority Critical patent/EP2458157B1/de
Priority to CA2758830A priority patent/CA2758830C/en
Priority to RU2011147534/02A priority patent/RU2581328C2/ru
Priority to US13/305,407 priority patent/US8926271B2/en
Priority to CN201110383947.1A priority patent/CN102536882B/zh
Publication of EP2458157A1 publication Critical patent/EP2458157A1/de
Application granted granted Critical
Publication of EP2458157B1 publication Critical patent/EP2458157B1/de
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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
    • F01D11/08—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

Definitions

  • the present invention aims to provide a new family of abradables having a non-axisymmetrical shape for generating a greater pressure drop and thus ensuring a better seal.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)

Claims (9)

  1. Dichtung (7) für einen Stator einer Strömungsmaschine mit Statorschaufeln, die einen Außenring mit einem Innenring verbinden, wobei der Innenring und der Außenring konzentrisch sind und eine Luftstromzone begrenzen, und wobei die Dichtung (7) eine erste Abriebfläche, die zur Positionierung gegenüber einem Rotorteil der Strömungsmaschine bestimmt ist, und eine zweite Fläche, die dazu bestimmt ist, mit dem Stator-Innenring (3) im Kontakt zu sein, aufweist, wobei die Dichtung (7) eine stufige Form und eine Vielzahl Baueinheiten (10) aufweist, dadurch gekennzeichnet, dass jede Baueinheit (10) auf ihrer ersten Abriebfläche eine Umfangsstufe (9), die ein Hindernis in der Umfangsrichtung des Innenrings (3) bildet, und eine axiale Stufe (8), die ein Hindernis in der axialen Richtung der Strömungsmaschine bildet, aufweist, wobei jede Baueinheit (10) eine nicht achsensymmetrische Form aufweist.
  2. Dichtung (7) nach Anspruch 1, dadurch gekennzeichnet, dass die Umfangsstufe (9) und die axiale Stufe (8) der Baueinheit (10) die Konturen eines Profils bestimmen, das eine Vielzahl unterschiedlicher Formen aufweisen kann.
  3. Dichtung (7) nach Anspruch 2, dadurch gekennzeichnet, dass die Baueinheiten (10) Profile und/oder Abmessungen haben, die gemäß der Umfangsrichtung des Innenrings (3) variabel sind.
  4. Dichtung (7) nach Anspruch 2, dadurch gekennzeichnet, dass die Profile der verschiedenen Baueinheiten (10) gemäß der axialen Richtung der Strömungsmaschine versetzt sind.
  5. Dichtung (7) nach Anspruch 2, dadurch gekennzeichnet, dass die Baueinheiten (10) ein gleiches Profil haben, das sich periodisch entlang des Umfangs des Innenrings (3) wiederholt, wobei es dann Wiederholungseinheiten bildet.
  6. Dichtung (7) nach Anspruch 5, dadurch gekennzeichnet, dass jede Wiederholungseinheit in der Umfangsrichtung des Innenrings (3) einen Winkelsektor, der vier bis zehn Steigungen der von dem Rotorteil angetriebenen Rotorschaufeln (1) entspricht, bedeckt.
  7. Dichtung (7) nach irgendeinem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die erste Abriebfläche der Dichtung zur Positionierung gegenüber dem Rotorteil der Strömungsmaschine bestimmt ist, wobei der Rotorteil mit einer Trommel (5) fest verbundene Schneidendichtungen (6) aufweist.
  8. Dichtung (7) nach irgendeinem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Dichtung (7) aus Silikon oder Epoxy ist.
  9. Stator einer Strömungsmaschine, der mindestens eine Dichtung (7) nach irgendeinem der vorangehenden Ansprüche aufweist.
EP10193061.8A 2010-11-30 2010-11-30 Abriebdichtung eines Stator-Innenrings Active EP2458157B1 (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP10193061.8A EP2458157B1 (de) 2010-11-30 2010-11-30 Abriebdichtung eines Stator-Innenrings
CA2758830A CA2758830C (en) 2010-11-30 2011-11-21 Abradable for stator inner shroud
RU2011147534/02A RU2581328C2 (ru) 2010-11-30 2011-11-24 Истираемое уплотнение для внутреннего кожуха статора
US13/305,407 US8926271B2 (en) 2010-11-30 2011-11-28 Abradable for stator inner shroud
CN201110383947.1A CN102536882B (zh) 2010-11-30 2011-11-28 定子内环的耐磨密封

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10193061.8A EP2458157B1 (de) 2010-11-30 2010-11-30 Abriebdichtung eines Stator-Innenrings

Publications (2)

Publication Number Publication Date
EP2458157A1 EP2458157A1 (de) 2012-05-30
EP2458157B1 true EP2458157B1 (de) 2015-10-14

Family

ID=43923521

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10193061.8A Active EP2458157B1 (de) 2010-11-30 2010-11-30 Abriebdichtung eines Stator-Innenrings

Country Status (5)

Country Link
US (1) US8926271B2 (de)
EP (1) EP2458157B1 (de)
CN (1) CN102536882B (de)
CA (1) CA2758830C (de)
RU (1) RU2581328C2 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3022578B1 (fr) * 2014-06-23 2016-06-03 Snecma Procede de realisation et de reparation d’un distributeur de turbine d’une turbomachine
US20170130732A1 (en) * 2015-11-06 2017-05-11 United Technologies Corporation Compressor exit seal
FR3048018B1 (fr) * 2016-02-22 2018-03-02 Safran Aircraft Engines Dispositif d'application de materiau abradable sur une surface d'un carter de turbomachine
ES2933806T3 (es) 2017-02-21 2023-02-14 Illumina Inc Tagmentación que usa transposomas inmovilizados con enlazadores

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2963307A (en) * 1954-12-28 1960-12-06 Gen Electric Honeycomb seal
US4063742A (en) * 1976-08-18 1977-12-20 Kentucky Metals, Inc. Abradable fluid seal for aircraft gas turbines
US4477089A (en) * 1982-07-26 1984-10-16 Avco Corporation Honeycomb seal for turbine engines
EP1302559A1 (de) * 2001-10-16 2003-04-16 Snecma Moteurs Verfahren zum Schutz bei der Aluminisierung von Metallteilen mit einer zumindest teilweise Wabenstruktur

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3970319A (en) * 1972-11-17 1976-07-20 General Motors Corporation Seal structure
FR2339741A1 (fr) * 1976-01-30 1977-08-26 Snecma Joint statorique abradable pour turbomachine axiale et son procede d'execution
US4652209A (en) * 1985-09-13 1987-03-24 Rockwell International Corporation Knurled turbine tip seal
US4764089A (en) * 1986-08-07 1988-08-16 Allied-Signal Inc. Abradable strain-tolerant ceramic coated turbine shroud
US4914794A (en) * 1986-08-07 1990-04-10 Allied-Signal Inc. Method of making an abradable strain-tolerant ceramic coated turbine shroud
JP2927140B2 (ja) * 1993-04-12 1999-07-28 石川島播磨重工業株式会社 軸力釣合い装置
JP3640396B2 (ja) * 1994-06-14 2005-04-20 ユナイテッド テクノロジーズ コーポレイション 分断された周方向溝付きステータ構造体
DE4432998C1 (de) * 1994-09-16 1996-04-04 Mtu Muenchen Gmbh Anstreifbelag für metallische Triebwerkskomponente und Herstellungsverfahren
DE19730008C1 (de) * 1997-07-12 1998-10-29 Mtu Muenchen Gmbh Panzerung für ein metallisches Triebwerksbauteil und Verfahren zu ihrer Herstellung
US6113347A (en) * 1998-12-28 2000-09-05 General Electric Company Blade containment system
DE50015514D1 (de) * 1999-12-20 2009-02-26 Sulzer Metco Ag Profilierte, als Anstreifschicht verwendete Oberfläche in Strömungsmaschinen
US6899339B2 (en) * 2001-08-30 2005-05-31 United Technologies Corporation Abradable seal having improved durability
FR2832180B1 (fr) * 2001-11-14 2005-02-18 Snecma Moteurs Revetement abradable pour parois de turbines a gaz
KR100729650B1 (ko) * 2002-02-27 2007-06-18 한라공조주식회사 소음저감구조를 가지는 쉬라우드
US6874990B2 (en) * 2003-01-29 2005-04-05 Siemens Vdo Automotive Inc. Integral tip seal in a fan-shroud structure
FR2861129A1 (fr) * 2003-10-21 2005-04-22 Snecma Moteurs Dispositif de joint a labyrinthe pour moteur a turbine a gaz
US7600968B2 (en) * 2004-11-24 2009-10-13 General Electric Company Pattern for the surface of a turbine shroud

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2963307A (en) * 1954-12-28 1960-12-06 Gen Electric Honeycomb seal
US4063742A (en) * 1976-08-18 1977-12-20 Kentucky Metals, Inc. Abradable fluid seal for aircraft gas turbines
US4477089A (en) * 1982-07-26 1984-10-16 Avco Corporation Honeycomb seal for turbine engines
EP1302559A1 (de) * 2001-10-16 2003-04-16 Snecma Moteurs Verfahren zum Schutz bei der Aluminisierung von Metallteilen mit einer zumindest teilweise Wabenstruktur

Also Published As

Publication number Publication date
US20120134787A1 (en) 2012-05-31
RU2011147534A (ru) 2013-05-27
CN102536882B (zh) 2016-05-18
US8926271B2 (en) 2015-01-06
CN102536882A (zh) 2012-07-04
RU2581328C2 (ru) 2016-04-20
CA2758830C (en) 2018-02-13
CA2758830A1 (en) 2012-05-30
EP2458157A1 (de) 2012-05-30

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