IT8519864A0 - Tenuta rotante particolarmente per turbina a gas. - Google Patents
Tenuta rotante particolarmente per turbina a gas.Info
- Publication number
- IT8519864A0 IT8519864A0 IT8519864A IT1986485A IT8519864A0 IT 8519864 A0 IT8519864 A0 IT 8519864A0 IT 8519864 A IT8519864 A IT 8519864A IT 1986485 A IT1986485 A IT 1986485A IT 8519864 A0 IT8519864 A0 IT 8519864A0
- Authority
- IT
- Italy
- Prior art keywords
- gas turbine
- rotary seal
- seal especially
- rotary
- turbine
- Prior art date
Links
- RLQJEEJISHYWON-UHFFFAOYSA-N flonicamid Chemical compound FC(F)(F)C1=CC=NC=C1C(=O)NCC#N RLQJEEJISHYWON-UHFFFAOYSA-N 0.000 title 1
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
- F01D11/04—Preventing or minimising internal leakage of working-fluid, e.g. between stages by non-contact sealings, e.g. of labyrinth type using sealing fluid, e.g. steam
-
- 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
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/162—Special parts or details relating to lubrication or cooling of the sealing itself
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/44—Free-space packings
- F16J15/443—Free-space packings provided with discharge channels
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/604,561 US4513975A (en) | 1984-04-27 | 1984-04-27 | Thermally responsive labyrinth seal |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8519864A0 true IT8519864A0 (it) | 1985-03-12 |
IT1184980B IT1184980B (it) | 1987-10-28 |
Family
ID=24420109
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT19864/85A IT1184980B (it) | 1984-04-27 | 1985-03-12 | Tenuta rotante particolarmente per turbina a gas |
Country Status (8)
Country | Link |
---|---|
US (1) | US4513975A (it) |
JP (1) | JPS60231072A (it) |
CA (1) | CA1257623A (it) |
DE (1) | DE3514392A1 (it) |
FR (1) | FR2563601B1 (it) |
GB (1) | GB2158166B (it) |
IT (1) | IT1184980B (it) |
SE (1) | SE456928B (it) |
Families Citing this family (47)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2570763B1 (fr) * | 1984-09-27 | 1986-11-28 | Snecma | Dispositif de controle automatique du jeu d'un joint a labyrinthe de turbomachine |
US4721313A (en) * | 1986-09-12 | 1988-01-26 | Atlas Copco Comptec, Inc. | Anti-erosion labyrinth seal |
US4909706A (en) * | 1987-01-28 | 1990-03-20 | Union Carbide Corporation | Controlled clearance labyrinth seal |
US5002288A (en) * | 1988-10-13 | 1991-03-26 | General Electric Company | Positive variable clearance labyrinth seal |
US5037114A (en) * | 1990-01-26 | 1991-08-06 | Westinghouse Electric Corp. | Labyrinth seal for steam turbines |
US5281090A (en) * | 1990-04-03 | 1994-01-25 | General Electric Co. | Thermally-tuned rotary labyrinth seal with active seal clearance control |
US5238166A (en) * | 1990-09-21 | 1993-08-24 | Siemens Aktiengesellschaft | Sealing arrangement for retaining liquid lubricant in selected areas of a machine |
US5190440A (en) * | 1991-03-11 | 1993-03-02 | Dresser-Rand Company | Swirl control labyrinth seal |
US5161943A (en) * | 1991-03-11 | 1992-11-10 | Dresser-Rand Company, A General Partnership | Swirl control labyrinth seal |
US5224713A (en) * | 1991-08-28 | 1993-07-06 | General Electric Company | Labyrinth seal with recirculating means for reducing or eliminating parasitic leakage through the seal |
US5169159A (en) * | 1991-09-30 | 1992-12-08 | General Electric Company | Effective sealing device for engine flowpath |
US5215435A (en) * | 1991-10-28 | 1993-06-01 | General Electric Company | Angled cooling air bypass slots in honeycomb seals |
US5433453A (en) * | 1994-03-02 | 1995-07-18 | Imo Industries, Inc. Quabbin Division | Articulated snout rings having spaced teeth |
US5676521A (en) * | 1996-07-22 | 1997-10-14 | Haynes; Christopher J. | Steam turbine with superheat retaining extraction |
EP0924386B1 (de) * | 1997-12-23 | 2003-02-05 | ABB Turbo Systems AG | Verfahren und Vorrichtung zum berührungsfreien Abdichten eines zwischen einem Rotor und einem Stator ausgebildeten Trennspalts |
US5984630A (en) * | 1997-12-24 | 1999-11-16 | General Electric Company | Reduced windage high pressure turbine forward outer seal |
EP1347153B1 (de) * | 1998-07-14 | 2006-04-12 | ALSTOM Technology Ltd | Berührungsloses Abdichten von Spalten Gasturbinen |
US6471216B1 (en) * | 1999-05-24 | 2002-10-29 | General Electric Company | Rotating 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 |
US6527274B2 (en) | 2000-12-13 | 2003-03-04 | General Electric Company | Turbine rotor-stator leaf seal and related method |
US20040239040A1 (en) * | 2003-05-29 | 2004-12-02 | Burdgick Steven Sebastian | Nozzle interstage seal for steam turbines |
DE10348290A1 (de) * | 2003-10-17 | 2005-05-12 | Mtu Aero Engines Gmbh | Dichtungsanordnung für eine Gasturbine |
US7025565B2 (en) | 2004-01-14 | 2006-04-11 | General Electric Company | Gas turbine engine component having bypass circuit |
US7234918B2 (en) * | 2004-12-16 | 2007-06-26 | Siemens Power Generation, Inc. | Gap control system for turbine engines |
WO2007035701A2 (en) * | 2005-09-19 | 2007-03-29 | Ingersoll-Rand Company | Stationary seal ring for a centrifugal compressor |
ES2357754T3 (es) * | 2005-09-19 | 2011-04-29 | Ingersoll Rand Company | Impulsor para un compresor centrífugo. |
US7748945B2 (en) * | 2006-12-07 | 2010-07-06 | Jerry Wayne Johnson | Floating sealing ring |
US7971882B1 (en) * | 2007-01-17 | 2011-07-05 | Florida Turbine Technologies, Inc. | Labyrinth seal |
JP5411569B2 (ja) * | 2009-05-01 | 2014-02-12 | 株式会社日立製作所 | シール構造とその制御方法 |
US8360712B2 (en) * | 2010-01-22 | 2013-01-29 | General Electric Company | Method and apparatus for labyrinth seal packing rings |
GB201012719D0 (en) | 2010-07-29 | 2010-09-15 | Rolls Royce Plc | Labyrinth seal |
GB201013004D0 (en) * | 2010-08-03 | 2010-09-15 | Rolls Royce Plc | A seal assembly |
GB201013003D0 (en) | 2010-08-03 | 2010-09-15 | Rolls Royce Plc | A seal assembly |
EP2964982B1 (en) * | 2013-03-08 | 2018-05-09 | Rolls-Royce Corporation | Slotted labyrinth seal |
US9957826B2 (en) | 2014-06-09 | 2018-05-01 | United Technologies Corporation | Stiffness controlled abradeable seal system with max phase materials and methods of making same |
JP6443821B2 (ja) * | 2014-10-17 | 2018-12-26 | Nok株式会社 | 密封装置 |
US10006466B2 (en) * | 2015-04-13 | 2018-06-26 | United Technologies Corporation | Clamped HPC seal ring |
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 |
FR3071541B1 (fr) * | 2017-09-26 | 2019-09-13 | Safran Aircraft Engines | Joint d'etancheite a labyrinthe pour une turbomachine d'aeronef |
US11047249B2 (en) | 2019-05-01 | 2021-06-29 | Raytheon Technologies Corporation | Labyrinth seal with passive check valve |
PL430870A1 (pl) | 2019-08-14 | 2021-02-22 | Avio Polska Spółka Z Ograniczoną Odpowiedzialnością | Uszczelnienie do zmniejszania wycieku przepływu wewnątrz silnika z turbiną gazową |
US11293295B2 (en) | 2019-09-13 | 2022-04-05 | Pratt & Whitney Canada Corp. | Labyrinth seal with angled fins |
CN111140289B (zh) * | 2019-12-20 | 2020-12-29 | 南京航空航天大学 | 一种降低燃气入侵量的篦齿封严装置 |
US11555410B2 (en) * | 2020-02-17 | 2023-01-17 | Pratt & Whitney Canada Corp. | Labyrinth seal with variable seal clearance |
US11867064B1 (en) * | 2022-09-26 | 2024-01-09 | Pratt & Whitney Canada Corp. | Seal assembly for aircraft engine |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE493180C (de) * | 1930-03-03 | Siemens Schuckertwerke Akt Ges | Labyrinthstopfbuechse fuer Dampfturbinen | |
CA875365A (en) * | 1971-07-13 | General Motors Corporation | Cooled seal ring | |
US1831242A (en) * | 1926-12-09 | 1931-11-10 | Westinghouse Electric & Mfg Co | Labyrinth packing |
US2159766A (en) * | 1938-04-15 | 1939-05-23 | Gen Electric | Labyrinth packing |
DE1079406B (de) * | 1957-06-05 | 1960-04-07 | Siemens Ag | In Laengsrichtung geteilter, radial federnd beweglicher Dichtungstraeger fuer Labyrinthdichtungen von Kreiselmaschinen |
FR1201361A (fr) * | 1958-08-20 | 1959-12-30 | Bretagne Atel Chantiers | Perfectionnement aux dispositifs d'étanchéité, notamment de turbines à vapeur |
GB1207543A (en) * | 1968-03-05 | 1970-10-07 | Gen Motors Corp | Cooled seal |
US3527053A (en) * | 1968-12-11 | 1970-09-08 | Gen Electric | Gas turbine engine with improved gas seal |
US3825364A (en) * | 1972-06-09 | 1974-07-23 | Gen Electric | Porous abradable turbine shroud |
US3846899A (en) * | 1972-07-28 | 1974-11-12 | Gen Electric | A method of constructing a labyrinth seal |
US3823950A (en) * | 1972-10-24 | 1974-07-16 | Laval Turbine | Improved pressure vented wear ring assembly for use in rotary machinery |
JPS5346443Y2 (it) * | 1973-10-31 | 1978-11-07 | ||
FR2401310A1 (fr) * | 1977-08-26 | 1979-03-23 | Snecma | Carter de turbine de moteur a reaction |
FR2437544A1 (fr) * | 1978-09-27 | 1980-04-25 | Snecma | Perfectionnements aux joints a labyrinthe |
FR2438165A1 (fr) * | 1978-10-06 | 1980-04-30 | Snecma | Dispositif de regulation de temperature pour turbines a gaz |
GB2042086B (en) * | 1979-02-26 | 1983-10-12 | Gen Electric | Gas turbine engine seal |
SU785575A1 (ru) * | 1979-03-01 | 1980-12-07 | За витель | Пр моточное лабиринтное уплотнение |
SU811028A1 (ru) * | 1979-03-05 | 1981-03-07 | Solomko Vladimir | Лабиринтное ступенчатое уплотнение |
SU785576A1 (ru) * | 1979-03-23 | 1980-12-07 | За витель | Пр моточное лабиринтное уплотнение |
SU830064A1 (ru) * | 1979-07-05 | 1981-05-15 | Казанский Ордена Трудового Красногознамени Авиационный Институт Им.A.H.Туполева | Лабиринтное уплотнение |
-
1984
- 1984-04-27 US US06/604,561 patent/US4513975A/en not_active Expired - Lifetime
-
1985
- 1985-02-13 GB GB08503618A patent/GB2158166B/en not_active Expired
- 1985-02-15 FR FR858502159A patent/FR2563601B1/fr not_active Expired
- 1985-02-25 JP JP60034720A patent/JPS60231072A/ja active Granted
- 1985-03-12 IT IT19864/85A patent/IT1184980B/it active
- 1985-04-11 CA CA000478899A patent/CA1257623A/en not_active Expired
- 1985-04-20 DE DE19853514392 patent/DE3514392A1/de not_active Ceased
- 1985-04-26 SE SE8502035A patent/SE456928B/sv not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
SE8502035L (sv) | 1985-10-28 |
GB2158166A (en) | 1985-11-06 |
IT1184980B (it) | 1987-10-28 |
CA1257623A (en) | 1989-07-18 |
JPS60231072A (ja) | 1985-11-16 |
FR2563601A1 (fr) | 1985-10-31 |
DE3514392A1 (de) | 1985-11-07 |
SE456928B (sv) | 1988-11-14 |
FR2563601B1 (fr) | 1989-06-30 |
GB2158166B (en) | 1987-08-19 |
US4513975A (en) | 1985-04-30 |
JPH0475434B2 (it) | 1992-11-30 |
SE8502035D0 (sv) | 1985-04-26 |
GB8503618D0 (en) | 1985-03-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19930323 |