EP0856640B1 - Joint d'étanchéité à plaquettes empilées glissant dans des fentes de réception - Google Patents
Joint d'étanchéité à plaquettes empilées glissant dans des fentes de réception Download PDFInfo
- Publication number
- EP0856640B1 EP0856640B1 EP98400176A EP98400176A EP0856640B1 EP 0856640 B1 EP0856640 B1 EP 0856640B1 EP 98400176 A EP98400176 A EP 98400176A EP 98400176 A EP98400176 A EP 98400176A EP 0856640 B1 EP0856640 B1 EP 0856640B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sectors
- slots
- slot
- stator
- sliding freely
- 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.)
- Expired - Lifetime
Links
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
- F01D11/005—Sealing means between non relatively rotating elements
-
- 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
- F01D9/00—Stators
- F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
Definitions
- the invention relates to a seal sealing whose essential element consists of a stack of pads sliding in slots reception.
- the wafer relatively thick and rigid is replaced by a plurality of plates simply placed one on the other others and mobile in the slots, which lets slide each other. These plates, necessarily thinner than the single wafer they replace, are also more flexible. The advantages of this design will be explained below.
- Figure 1 is a cross section a portion of a turbomachine which represents a pair stator sectors 1 each of which includes a skin outer 2, inner skin 3, two skins 2 and 3 delimiting a gas flow stream 4 and being joined by stationary vanes 5, the cross section of which is hollow.
- the seal 7 according to the invention extends so in as many copies as necessary across each of the sets 6 and in pairs of slots 8 in extension present on sectors 1 opposite.
- the Figure 2 which shows a longitudinal section of the stator, shows that the seals 7 can take a complicated overall layout depending on the shape of skins 2 and 3: they consist in practice of a network made up of elements arranged in several lines broken, whose ends 9 often rest on others seals 7, more or less near the end of these joints, so that the gases must take a winding path to escape through the games 6.
- sectors 1 are retained on a single outer casing 13 by two systems 14 and 15 with flange fitted in a groove. This arrangement makes it possible to assemble the sectors 1 without linking them together, which prohibits adjust the width of the clearances 6.
- Figure 3 shows that each of the seals 7 consists of several thin plates 10 placed the over each other and narrower than the gap between the bottoms 11 of slots 8 in extension, which their allows to slide on each other according to the deformations or displacement of sectors 1 and machine vibration and spread out in the slots 8.
- a second advantage of the invention is precisely that the plates 10 remain placed the one on the other and on one of the walls 12 of the slots 8, on the side where the pressure is lowest. We realizes that this provision guarantees great contact surface between the seal 7 and the wall 12, that however, the leakage gases must borrow, which explains on their flow will be much lower than with previous designs.
- the contact on the wall 12 is still improved thanks to the low rigidity of the inserts 10 thin. This circumstance is precious because it allows the plates 10 to deform to marry the actual shape of the walls 12, even if these have been performed with manufacturing inaccuracies or not are no longer completely opposite, and even if the Platelets 10 were slightly veiled at the start.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Gasket Seals (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
- les figures 1 et 2 représentent la position de l'invention dans un stator de turbomachine ;
- et les figures 3 et 4 représentent l'invention elle-même.
Claims (2)
- Joint d'étanchéité (7) jeté à travers un jeu (6) présent entre deux secteurs (1) de stator de turbomachine, s'étendant dans des fentes (8) en prolongement des deux secteurs (1) et mobile dans les fentes (8), caractérisé en ce qu'il consiste en une pluralité de plaquettes (10) flexibles et posées les unes sur les autres de façon à pouvoir glisser mutuellement en s'étalant latéralement dans les fentes (8).
- Joint d'étanchéité selon la revendication 1, caractérisé en ce que les secteurs (1) sont des secteurs angulaires maintenus séparément sur un carter du stator et délimitant une veine d'écoulement de gaz (4).
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9700988 | 1997-01-30 | ||
FR9700988A FR2758856B1 (fr) | 1997-01-30 | 1997-01-30 | Joint d'etancheite a plaquettes empilees glissant dans des fentes de reception |
US09/006,956 US5997247A (en) | 1997-01-30 | 1998-01-14 | Seal of stacked thin slabs that slide within reception slots |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0856640A1 EP0856640A1 (fr) | 1998-08-05 |
EP0856640B1 true EP0856640B1 (fr) | 2001-12-12 |
Family
ID=26233287
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98400176A Expired - Lifetime EP0856640B1 (fr) | 1997-01-30 | 1998-01-29 | Joint d'étanchéité à plaquettes empilées glissant dans des fentes de réception |
Country Status (5)
Country | Link |
---|---|
US (1) | US5997247A (fr) |
EP (1) | EP0856640B1 (fr) |
JP (1) | JP3808197B2 (fr) |
CA (1) | CA2228777C (fr) |
FR (1) | FR2758856B1 (fr) |
Families Citing this family (41)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10274003A (ja) * | 1997-03-31 | 1998-10-13 | Mitsubishi Heavy Ind Ltd | ガスタービンのシール装置 |
EP0921277B1 (fr) * | 1997-06-04 | 2003-09-24 | Mitsubishi Heavy Industries, Ltd. | Structure d'etancheite montee entre les disques d'une turbine a gaz |
JP3643692B2 (ja) * | 1998-03-02 | 2005-04-27 | 三菱重工業株式会社 | 回転機械のシール装置 |
GB2341607B (en) | 1998-09-15 | 2000-07-19 | Morgan Crucible Co | Bonded fibrous materials |
FR2786222B1 (fr) | 1998-11-19 | 2000-12-29 | Snecma | Dispositif d'etancheite a lamelle |
US6170831B1 (en) * | 1998-12-23 | 2001-01-09 | United Technologies Corporation | Axial brush seal for gas turbine engines |
US6340285B1 (en) * | 2000-06-08 | 2002-01-22 | General Electric Company | End rail cooling for combined high and low pressure turbine shroud |
US6843479B2 (en) * | 2002-07-30 | 2005-01-18 | General Electric Company | Sealing of nozzle slashfaces in a steam turbine |
US6883807B2 (en) * | 2002-09-13 | 2005-04-26 | Seimens Westinghouse Power Corporation | Multidirectional turbine shim seal |
US6733234B2 (en) | 2002-09-13 | 2004-05-11 | Siemens Westinghouse Power Corporation | Biased wear resistant turbine seal assembly |
GB2412702B (en) * | 2004-03-31 | 2006-05-03 | Rolls Royce Plc | Seal assembly |
FR2869070B1 (fr) | 2004-04-15 | 2008-10-17 | Snecma Moteurs Sa | Anneau de turbine |
US20060082074A1 (en) * | 2004-10-18 | 2006-04-20 | Pratt & Whitney Canada Corp. | Circumferential feather seal |
US7334800B2 (en) * | 2004-10-29 | 2008-02-26 | Power Systems Mfg., Llc | Seal for a gas turbine engine having improved flexibility |
GB2434184B (en) * | 2006-01-12 | 2007-12-12 | Rolls Royce Plc | A sealing arrangement |
FR2902843A1 (fr) * | 2006-06-23 | 2007-12-28 | Snecma Sa | Secteur de redresseur de compresseur ou secteur de distributeur de turbomachine |
FR2919345B1 (fr) * | 2007-07-26 | 2013-08-30 | Snecma | Anneau pour une roue de turbine de turbomachine. |
US8240985B2 (en) * | 2008-04-29 | 2012-08-14 | Pratt & Whitney Canada Corp. | Shroud segment arrangement for gas turbine engines |
US8845272B2 (en) | 2011-02-25 | 2014-09-30 | General Electric Company | Turbine shroud and a method for manufacturing the turbine shroud |
RU2536443C2 (ru) * | 2011-07-01 | 2014-12-27 | Альстом Текнолоджи Лтд | Направляющая лопатка турбины |
US9188228B2 (en) | 2011-10-26 | 2015-11-17 | General Electric Company | Layered seal for turbomachinery |
US9938844B2 (en) * | 2011-10-26 | 2018-04-10 | General Electric Company | Metallic stator seal |
US10161523B2 (en) | 2011-12-23 | 2018-12-25 | General Electric Company | Enhanced cloth seal |
US20130177383A1 (en) * | 2012-01-05 | 2013-07-11 | General Electric Company | Device and method for sealing a gas path in a turbine |
EP2907977A1 (fr) * | 2014-02-14 | 2015-08-19 | Siemens Aktiengesellschaft | Composant pouvant être alimenté par un gaz chaud pour une turbine à gaz et système d'étanchéité doté d'un tel composant |
US9844826B2 (en) | 2014-07-25 | 2017-12-19 | Honeywell International Inc. | Methods for manufacturing a turbine nozzle with single crystal alloy nozzle segments |
GB201416764D0 (en) | 2014-09-23 | 2014-11-05 | Rolls Royce Plc | Gas turbine engine |
US9850772B2 (en) * | 2015-04-24 | 2017-12-26 | General Electric Company | Seals with a thermal barrier for turbomachinery |
US9771819B2 (en) | 2015-12-09 | 2017-09-26 | General Electric Company | Anti-corner-leakage seal in gas turbine |
US10487678B2 (en) * | 2016-05-23 | 2019-11-26 | United Technologies Corporation | Engine air sealing by seals in series |
US10890078B1 (en) | 2017-06-12 | 2021-01-12 | Technetics Group Llc | Flexible seal assembly |
FR3070429B1 (fr) * | 2017-08-30 | 2022-04-22 | Safran Aircraft Engines | Secteur d'un distributeur annulaire d'une turbine de turbomachine |
FR3070715B1 (fr) | 2017-09-06 | 2021-07-30 | Safran Aircraft Engines | Languette d'etancheite inter secteurs de turbomachine d'aeronef |
US10662794B2 (en) * | 2017-10-19 | 2020-05-26 | Rolls-Royce Corporation | Strip seal axial assembly groove |
US10655489B2 (en) * | 2018-01-04 | 2020-05-19 | General Electric Company | Systems and methods for assembling flow path components |
US10927692B2 (en) | 2018-08-06 | 2021-02-23 | General Electric Company | Turbomachinery sealing apparatus and method |
FR3092866B1 (fr) | 2019-02-19 | 2023-01-06 | Safran Aircraft Engines | Partie de turbomachine pour aeronef a languettes d’etancheite |
FR3092867B1 (fr) | 2019-02-19 | 2021-08-13 | Safran Aircraft Engines | Partie de turbomachine pour aeronef a languettes d’etancheite |
US10927691B2 (en) | 2019-03-21 | 2021-02-23 | Solar Turbines Incorporated | Nozzle segment air seal |
FR3115811B1 (fr) * | 2020-10-30 | 2023-02-24 | Safran Ceram | Assemblage pour turbine comprenant des secteurs avec languettes d’étanchéité lamifiées |
KR20240140365A (ko) * | 2023-03-16 | 2024-09-24 | 두산에너빌리티 주식회사 | 씰 조립체 및 그를 갖는 터빈 |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US26510A (en) * | 1859-12-20 | andrews | ||
CH525419A (de) * | 1970-12-18 | 1972-07-15 | Bbc Sulzer Turbomaschinen | Dichtungsvorrichtung für Turbomaschinen |
GB1493913A (en) * | 1975-06-04 | 1977-11-30 | Gen Motors Corp | Turbomachine stator interstage seal |
US4268046A (en) * | 1979-02-23 | 1981-05-19 | Muskegon Piston Ring Company | Multiple seal stationary sealing ring |
FR2452590A1 (fr) | 1979-03-27 | 1980-10-24 | Snecma | Garniture d'etancheite amovible pour segment de distributeur de turbomachine |
US4537024A (en) * | 1979-04-23 | 1985-08-27 | Solar Turbines, Incorporated | Turbine engines |
US4311432A (en) * | 1979-11-20 | 1982-01-19 | United Technologies Corporation | Radial seal |
DE3401569A1 (de) * | 1984-01-18 | 1985-07-25 | MTU Motoren- und Turbinen-Union München GmbH, 8000 München | Selbstwirkende spaltabdichtung |
SU1200609A1 (ru) * | 1984-03-01 | 1990-10-30 | Предприятие П/Я А-1469 | Сопловой аппарат газовой турбины |
FR2597921A1 (fr) | 1986-04-24 | 1987-10-30 | Snecma | Anneau de turbine sectorise |
US4767260A (en) * | 1986-11-07 | 1988-08-30 | United Technologies Corporation | Stator vane platform cooling means |
US5221096A (en) * | 1990-10-19 | 1993-06-22 | Allied-Signal Inc. | Stator and multiple piece seal |
US5088888A (en) * | 1990-12-03 | 1992-02-18 | General Electric Company | Shroud seal |
GB9312174D0 (en) * | 1993-06-12 | 1993-07-28 | Flexitallic Ltd | Gasket |
JP2941698B2 (ja) * | 1995-11-10 | 1999-08-25 | 三菱重工業株式会社 | ガスタービンロータ |
US5664791A (en) * | 1995-12-14 | 1997-09-09 | Lamons Metal Gasket Co. | Spiral wound gasket bridged to guide ring |
-
1997
- 1997-01-30 FR FR9700988A patent/FR2758856B1/fr not_active Expired - Fee Related
-
1998
- 1998-01-14 US US09/006,956 patent/US5997247A/en not_active Expired - Fee Related
- 1998-01-26 CA CA002228777A patent/CA2228777C/fr not_active Expired - Fee Related
- 1998-01-29 EP EP98400176A patent/EP0856640B1/fr not_active Expired - Lifetime
- 1998-01-30 JP JP01839598A patent/JP3808197B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
FR2758856B1 (fr) | 1999-02-26 |
JPH10212904A (ja) | 1998-08-11 |
US5997247A (en) | 1999-12-07 |
CA2228777A1 (fr) | 1998-07-30 |
JP3808197B2 (ja) | 2006-08-09 |
FR2758856A1 (fr) | 1998-07-31 |
EP0856640A1 (fr) | 1998-08-05 |
CA2228777C (fr) | 2005-09-20 |
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