EP2458157B1 - Abriebdichtung eines Stator-Innenrings - Google Patents
Abriebdichtung eines Stator-Innenrings Download PDFInfo
- 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
- Authority
- 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
Links
- 230000003252 repetitive effect Effects 0.000 claims description 5
- 229920001296 polysiloxane Polymers 0.000 claims description 4
- 239000004593 Epoxy Substances 0.000 claims description 3
- 239000011295 pitch Substances 0.000 claims 1
- 239000000470 constituent Substances 0.000 description 11
- 125000004122 cyclic group Chemical group 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 210000003462 vein Anatomy 0.000 description 2
- 241001417494 Sciaenidae Species 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
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)
- 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.
- 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.
- 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.
- Dichtung (7) nach Anspruch 2, dadurch gekennzeichnet, dass die Profile der verschiedenen Baueinheiten (10) gemäß der axialen Richtung der Strömungsmaschine versetzt sind.
- 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.
- 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.
- 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.
- Dichtung (7) nach irgendeinem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Dichtung (7) aus Silikon oder Epoxy ist.
- Stator einer Strömungsmaschine, der mindestens eine Dichtung (7) nach irgendeinem der vorangehenden Ansprüche aufweist.
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 |
CN201110383947.1A CN102536882B (zh) | 2010-11-30 | 2011-11-28 | 定子内环的耐磨密封 |
US13/305,407 US8926271B2 (en) | 2010-11-30 | 2011-11-28 | Abradable for stator inner shroud |
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)
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 |
IL263118B2 (en) | 2017-02-21 | 2023-12-01 | Illumina Inc | Tegumentation using fixed transpososomes with linkers |
Citations (4)
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)
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 |
US4914794A (en) * | 1986-08-07 | 1990-04-10 | Allied-Signal Inc. | Method of making an abradable strain-tolerant ceramic coated turbine shroud |
US4764089A (en) * | 1986-08-07 | 1988-08-16 | Allied-Signal Inc. | 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 |
WO1995034745A1 (en) * | 1994-06-14 | 1995-12-21 | United Technologies Corporation | Interrupted circumferential groove stator structure |
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 |
-
2010
- 2010-11-30 EP EP10193061.8A patent/EP2458157B1/de active Active
-
2011
- 2011-11-21 CA CA2758830A patent/CA2758830C/en not_active Expired - Fee Related
- 2011-11-24 RU RU2011147534/02A patent/RU2581328C2/ru not_active IP Right Cessation
- 2011-11-28 CN CN201110383947.1A patent/CN102536882B/zh active Active
- 2011-11-28 US US13/305,407 patent/US8926271B2/en active Active
Patent Citations (4)
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 |
---|---|
US8926271B2 (en) | 2015-01-06 |
CA2758830A1 (en) | 2012-05-30 |
US20120134787A1 (en) | 2012-05-31 |
RU2011147534A (ru) | 2013-05-27 |
EP2458157A1 (de) | 2012-05-30 |
CA2758830C (en) | 2018-02-13 |
CN102536882B (zh) | 2016-05-18 |
RU2581328C2 (ru) | 2016-04-20 |
CN102536882A (zh) | 2012-07-04 |
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