FR2449789A1 - Turbomachine a structure de refroidissement de joint d'etancheite perfectionnee - Google Patents
Turbomachine a structure de refroidissement de joint d'etancheite perfectionneeInfo
- Publication number
- FR2449789A1 FR2449789A1 FR7929044A FR7929044A FR2449789A1 FR 2449789 A1 FR2449789 A1 FR 2449789A1 FR 7929044 A FR7929044 A FR 7929044A FR 7929044 A FR7929044 A FR 7929044A FR 2449789 A1 FR2449789 A1 FR 2449789A1
- Authority
- FR
- France
- Prior art keywords
- turbomachine
- cooling structure
- improved seal
- seal cooling
- air
- 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.)
- Granted
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
- 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
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)
Abstract
TURBOMACHINE UTILISANT UN AIR PLUS FROID POUR LE REFROIDISSEMENT DE JOINT D'ETANCHEITE. ELLE COMPREND UN COMPRESSEUR 11, UN DIFFUSEUR 15 DE COMPRESSEUR, UNE CHAMBRE DE COMBUSTION, UN JOINT D'ETANCHEITE 10 ET UN DISPOSITIF QUI PRELEVE DE L'AIR DE REFROIDISSEMENT SUR L'AIR SORTANT DU DIFFUSEUR DU COMPRESSEUR ET ENVOIE CET AIR DE REFROIDISSEMENT A L'INTERIEUR DE CE JOINT POUR LE REFROIDIR. APPLICATION AUX MOTEURS A TURBINE A GAZ.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US1557879A | 1979-02-26 | 1979-02-26 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2449789A1 true FR2449789A1 (fr) | 1980-09-19 |
FR2449789B1 FR2449789B1 (fr) | 1984-10-19 |
Family
ID=21772249
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7929044A Granted FR2449789A1 (fr) | 1979-02-26 | 1979-11-26 | Turbomachine a structure de refroidissement de joint d'etancheite perfectionnee |
Country Status (6)
Country | Link |
---|---|
JP (1) | JPS55114852A (fr) |
CA (1) | CA1140474A (fr) |
DE (1) | DE2947439C2 (fr) |
FR (1) | FR2449789A1 (fr) |
GB (1) | GB2042086B (fr) |
IT (1) | IT1125667B (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4662821A (en) * | 1984-09-27 | 1987-05-05 | Societe Nationale D'etude Et De Construction De Moteur D'aviation S.N.E.C.M.A. | Automatic control device of a labyrinth seal clearance in a turbo jet engine |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4397471A (en) * | 1981-09-02 | 1983-08-09 | General Electric Company | Rotary pressure seal structure and method for reducing thermal stresses therein |
US4513975A (en) * | 1984-04-27 | 1985-04-30 | General Electric Company | Thermally responsive labyrinth seal |
DE3627306A1 (de) * | 1986-02-28 | 1987-09-03 | Mtu Muenchen Gmbh | Einrichtung zur belueftung von rotorbauteilen fuer verdichter von gasturbinentriebwerken |
US5211003A (en) * | 1992-02-05 | 1993-05-18 | General Electric Company | Diffuser clean air bleed assembly |
US7234918B2 (en) | 2004-12-16 | 2007-06-26 | Siemens Power Generation, Inc. | Gap control system for turbine engines |
US8167547B2 (en) * | 2007-03-05 | 2012-05-01 | United Technologies Corporation | Gas turbine engine with canted pocket and canted knife edge seal |
DE102012206090A1 (de) * | 2012-04-13 | 2013-10-17 | Rolls-Royce Deutschland Ltd & Co Kg | Axialverdichter einer Turbomaschine |
DE102013217504A1 (de) * | 2013-09-03 | 2015-03-05 | MTU Aero Engines AG | Strömungsmaschine |
EP3540180A1 (fr) * | 2018-03-14 | 2019-09-18 | General Electric Company | Conduites de purge de cavité inter-étage |
US11293295B2 (en) | 2019-09-13 | 2022-04-05 | Pratt & Whitney Canada Corp. | Labyrinth seal with angled fins |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3043561A (en) * | 1958-12-29 | 1962-07-10 | Gen Electric | Turbine rotor ventilation system |
GB1081158A (en) * | 1965-04-21 | 1967-08-31 | United Aircraft Corp | Improvements in and relating to a sealing construction for compressor elements |
GB1284858A (en) * | 1970-04-28 | 1972-08-09 | United Aircraft Corp | Gas turbine engine constructions |
FR2292868A1 (fr) * | 1974-11-27 | 1976-06-25 | Gen Electric | Systeme de joints a labyrinthe pour turbine a gaz |
FR2307965A1 (fr) * | 1975-04-14 | 1976-11-12 | Gen Electric | Turbomachine a reglage du jeu radial entre des pieces tournantes et des pieces fixes |
US4103899A (en) * | 1975-10-01 | 1978-08-01 | United Technologies Corporation | Rotary seal with pressurized air directed at fluid approaching the seal |
GB1540353A (en) * | 1976-11-17 | 1979-02-14 | Westinghouse Electric Corp | Cooling system for a gas turbine engine |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3365172A (en) * | 1966-11-02 | 1968-01-23 | Gen Electric | Air cooled shroud seal |
CA982828A (en) * | 1972-06-01 | 1976-02-03 | General Electric Company | Combustor casing cooling structure |
-
1979
- 1979-10-01 GB GB7933920A patent/GB2042086B/en not_active Expired
- 1979-11-12 IT IT27210/79A patent/IT1125667B/it active
- 1979-11-22 JP JP15077179A patent/JPS55114852A/ja active Granted
- 1979-11-24 DE DE2947439A patent/DE2947439C2/de not_active Expired - Lifetime
- 1979-11-26 FR FR7929044A patent/FR2449789A1/fr active Granted
-
1980
- 1980-02-01 CA CA000344942A patent/CA1140474A/fr not_active Expired
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3043561A (en) * | 1958-12-29 | 1962-07-10 | Gen Electric | Turbine rotor ventilation system |
GB1081158A (en) * | 1965-04-21 | 1967-08-31 | United Aircraft Corp | Improvements in and relating to a sealing construction for compressor elements |
GB1284858A (en) * | 1970-04-28 | 1972-08-09 | United Aircraft Corp | Gas turbine engine constructions |
FR2292868A1 (fr) * | 1974-11-27 | 1976-06-25 | Gen Electric | Systeme de joints a labyrinthe pour turbine a gaz |
FR2307965A1 (fr) * | 1975-04-14 | 1976-11-12 | Gen Electric | Turbomachine a reglage du jeu radial entre des pieces tournantes et des pieces fixes |
US4103899A (en) * | 1975-10-01 | 1978-08-01 | United Technologies Corporation | Rotary seal with pressurized air directed at fluid approaching the seal |
GB1540353A (en) * | 1976-11-17 | 1979-02-14 | Westinghouse Electric Corp | Cooling system for a gas turbine engine |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4662821A (en) * | 1984-09-27 | 1987-05-05 | Societe Nationale D'etude Et De Construction De Moteur D'aviation S.N.E.C.M.A. | Automatic control device of a labyrinth seal clearance in a turbo jet engine |
Also Published As
Publication number | Publication date |
---|---|
DE2947439C2 (de) | 1994-09-22 |
DE2947439A1 (de) | 1980-08-28 |
CA1140474A (fr) | 1983-02-01 |
JPS631452B2 (fr) | 1988-01-12 |
IT7927210A0 (it) | 1979-11-12 |
GB2042086B (en) | 1983-10-12 |
FR2449789B1 (fr) | 1984-10-19 |
GB2042086A (en) | 1980-09-17 |
JPS55114852A (en) | 1980-09-04 |
IT1125667B (it) | 1986-05-14 |
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