IT1246920B - Tenuta rotante a labirinto regolata termicamente con controllo attivo di gioco di tenuta - Google Patents
Tenuta rotante a labirinto regolata termicamente con controllo attivo di gioco di tenutaInfo
- Publication number
- IT1246920B IT1246920B ITMI910919A ITMI910919A IT1246920B IT 1246920 B IT1246920 B IT 1246920B IT MI910919 A ITMI910919 A IT MI910919A IT MI910919 A ITMI910919 A IT MI910919A IT 1246920 B IT1246920 B IT 1246920B
- Authority
- IT
- Italy
- Prior art keywords
- honeycomb structure
- annular sealing
- rotary seal
- thermally regulated
- game control
- Prior art date
Links
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
- F01D11/14—Adjusting or regulating tip-clearance, i.e. distance between rotor-blade tips and stator casing
- F01D11/16—Adjusting or regulating tip-clearance, i.e. distance between rotor-blade tips and stator casing by self-adjusting means
- F01D11/18—Adjusting or regulating tip-clearance, i.e. distance between rotor-blade tips and stator casing by self-adjusting means using stator or rotor components with predetermined thermal response, e.g. selective insulation, thermal inertia, differential expansion
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/60—Efficient propulsion technologies, e.g. for aircraft
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S277/00—Seal for a joint or juncture
- Y10S277/928—Seal including pressure relief or vent feature
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S277/00—Seal for a joint or juncture
- Y10S277/93—Seal including heating or cooling feature
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S277/00—Seal for a joint or juncture
- Y10S277/931—Seal including temperature responsive feature
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
Una tenuta rotante a labirinto regolata termicamente per un turbomotore a gas contiene un elemento anulare interno di tenuta avente denti anulari di tenuta distanziati assialmente e sporgenti radialmente e un elemento esterno anulare di tenuta avente una struttura a nido d'api scalinata che si affaccia verso i denti anulari di tenuta dell'elemento interno di tenuta e definisce con il medesimo delle regioni distanziate assialmente confinate dai denti di tenuta e dalla struttura a nido d'api. I denti di tenuta e la struttura a nido d'api scalinata cooperano per impedire passaggio di gas da una regione alla successiva. Ancora, la tenuta ha dei fori di sfiato di ingresso e di uscita definiti attraverso la struttura a nido d'api a suoi rispettivi estremi a monte e a valle che comunicano con quelle localizzate corrispondentemente delle regioni.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/505,117 US5281090A (en) | 1990-04-03 | 1990-04-03 | Thermally-tuned rotary labyrinth seal with active seal clearance control |
Publications (3)
Publication Number | Publication Date |
---|---|
ITMI910919A0 ITMI910919A0 (it) | 1991-04-03 |
ITMI910919A1 ITMI910919A1 (it) | 1992-10-03 |
IT1246920B true IT1246920B (it) | 1994-11-29 |
Family
ID=24009085
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ITMI910919A IT1246920B (it) | 1990-04-03 | 1991-04-03 | Tenuta rotante a labirinto regolata termicamente con controllo attivo di gioco di tenuta |
Country Status (7)
Country | Link |
---|---|
US (1) | US5281090A (it) |
JP (1) | JPH04224375A (it) |
CA (1) | CA2034468A1 (it) |
DE (1) | DE4110616A1 (it) |
FR (1) | FR2660370A1 (it) |
GB (1) | GB2242710A (it) |
IT (1) | IT1246920B (it) |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5332358A (en) * | 1993-03-01 | 1994-07-26 | General Electric Company | Uncoupled seal support assembly |
US5685693A (en) * | 1995-03-31 | 1997-11-11 | General Electric Co. | Removable inner turbine shell with bucket tip clearance control |
GB9717857D0 (en) * | 1997-08-23 | 1997-10-29 | Rolls Royce Plc | Fluid Seal |
US5984630A (en) * | 1997-12-24 | 1999-11-16 | General Electric Company | Reduced windage high pressure turbine forward outer seal |
US6142477A (en) * | 1998-11-16 | 2000-11-07 | United Technologies Corporation | Active seal |
US6394459B1 (en) | 2000-06-16 | 2002-05-28 | General Electric Company | Multi-clearance labyrinth seal design and related process |
GB0029337D0 (en) | 2000-12-01 | 2001-01-17 | Rolls Royce Plc | A seal segment for a turbine |
JP2002327764A (ja) * | 2001-05-01 | 2002-11-15 | Hitachi Electronics Eng Co Ltd | ベアリング防水機構およびディスク洗浄装置 |
DE10348290A1 (de) * | 2003-10-17 | 2005-05-12 | Mtu Aero Engines Gmbh | Dichtungsanordnung für eine Gasturbine |
CN101297118B (zh) * | 2005-09-19 | 2011-09-28 | 英格索尔-兰德公司 | 用于离心压缩机的静止密封环 |
CN101268284A (zh) * | 2005-09-19 | 2008-09-17 | 英格索尔-兰德公司 | 离心压缩机的叶轮 |
US8074998B2 (en) * | 2006-05-05 | 2011-12-13 | The Texas A&M University System | Annular seals for non-contact sealing of fluids in turbomachinery |
US8122702B2 (en) * | 2007-04-30 | 2012-02-28 | General Electric Company | Sealing arrangements for gas turbine engine thrust reverser |
US7966808B2 (en) * | 2007-04-30 | 2011-06-28 | General Electric Company | Baffle seal for gas turbine engine thrust reverser |
US8205335B2 (en) * | 2007-06-12 | 2012-06-26 | United Technologies Corporation | Method of repairing knife edge seals |
US20090014964A1 (en) * | 2007-07-09 | 2009-01-15 | Siemens Power Generation, Inc. | Angled honeycomb seal between turbine rotors and turbine stators in a turbine engine |
GB201012719D0 (en) * | 2010-07-29 | 2010-09-15 | Rolls Royce Plc | Labyrinth seal |
RU2451195C1 (ru) * | 2010-12-22 | 2012-05-20 | Открытое акционерное общество "Авиадвигатель" | Лабиринтное уплотнение турбомашины |
FR2991404B1 (fr) * | 2012-05-31 | 2016-01-29 | Snecma | Partie fixe d'un dispositif de joint d'etancheite a labyrinthe comportant une piece intermediaire |
US10006466B2 (en) * | 2015-04-13 | 2018-06-26 | United Technologies Corporation | Clamped HPC seal ring |
FR3036433B1 (fr) * | 2015-05-22 | 2019-09-13 | Safran Ceramics | Ensemble d'anneau de turbine avec maintien par crabotage |
CA2932601C (en) * | 2015-06-17 | 2023-10-03 | Rolls-Royce Corporation | Labyrinth seal with tunable flow splitter |
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 |
CN107314114A (zh) * | 2017-08-15 | 2017-11-03 | 沈阳航空航天大学 | 一种篦齿密封结构 |
FR3085405B1 (fr) * | 2018-08-28 | 2020-12-04 | Safran Aircraft Engines | Pressurisation de la cavite inter-lechettes par derivation du flux de bypass |
CN112523814B (zh) * | 2020-12-01 | 2022-11-22 | 中国航发沈阳发动机研究所 | 一种高压压气机出口封严装置 |
CN114738119A (zh) * | 2022-04-18 | 2022-07-12 | 中国航发沈阳发动机研究所 | 一种篦齿封严结构 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI45933C (fi) * | 1972-03-22 | 1976-12-03 | Salakarin Oikeudenomistajat | Liukumista estävä laite pyörää ja sentapaista varten. |
US4526508A (en) * | 1982-09-29 | 1985-07-02 | United Technologies Corporation | Rotor assembly for a gas turbine engine |
US4513975A (en) * | 1984-04-27 | 1985-04-30 | General Electric Company | Thermally responsive labyrinth seal |
FR2570763B1 (fr) * | 1984-09-27 | 1986-11-28 | Snecma | Dispositif de controle automatique du jeu d'un joint a labyrinthe de turbomachine |
FR2570764B1 (fr) * | 1984-09-27 | 1986-11-28 | Snecma | Dispositif de controle automatique du jeu d'un joint a labyrinthe de turbomachine |
-
1990
- 1990-04-03 US US07/505,117 patent/US5281090A/en not_active Expired - Lifetime
-
1991
- 1991-01-17 CA CA002034468A patent/CA2034468A1/en not_active Abandoned
- 1991-03-12 JP JP3070325A patent/JPH04224375A/ja active Pending
- 1991-03-22 FR FR9103500A patent/FR2660370A1/fr not_active Withdrawn
- 1991-03-28 GB GB9106599A patent/GB2242710A/en not_active Withdrawn
- 1991-04-02 DE DE4110616A patent/DE4110616A1/de not_active Withdrawn
- 1991-04-03 IT ITMI910919A patent/IT1246920B/it active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
ITMI910919A0 (it) | 1991-04-03 |
ITMI910919A1 (it) | 1992-10-03 |
GB9106599D0 (en) | 1991-05-15 |
FR2660370A1 (fr) | 1991-10-04 |
GB2242710A (en) | 1991-10-09 |
US5281090A (en) | 1994-01-25 |
CA2034468A1 (en) | 1991-10-04 |
DE4110616A1 (de) | 1991-10-10 |
JPH04224375A (ja) | 1992-08-13 |
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Legal Events
Date | Code | Title | Description |
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0001 | Granted |