GB1476237A - Support structure in gas turbine engines - Google Patents
Support structure in gas turbine enginesInfo
- Publication number
- GB1476237A GB1476237A GB4082974A GB4082974A GB1476237A GB 1476237 A GB1476237 A GB 1476237A GB 4082974 A GB4082974 A GB 4082974A GB 4082974 A GB4082974 A GB 4082974A GB 1476237 A GB1476237 A GB 1476237A
- Authority
- GB
- United Kingdom
- Prior art keywords
- seal
- openings
- turbine
- carries
- shaft
- 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
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
- F01D11/025—Seal clearance control; Floating assembly; Adaptation means to differential thermal dilatations
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
1476237 Gas turbine engines - arrangement of seals ROLLS-ROYCE (1971) Ltd 15 Aug 1975 [19 Sept 1974] 40829/74 Heading F1G and FIT The invention relates to a seal structure for a gas turbine engine in which the stationary part of the seal is supported from the turbine shaft by means of a stationary panel supported on the shaft by means of a bearing. The turbine assembly shown is the HP turbine of a gas turbine engine, the turbine comprising a rotor disc 24 carrying blades 7 and connected to a shaft 14 rotatably supported in bearings (15), (16) Fig. 1 (not shown). The assembly comprises also inlet guide vanes 6 carried by stator structure 43, 28. A bearing assembly 20 is mounted on the shaft 14 and carries a stationary panel 21 comprising a frusto-conical portion and a radial web 26 which carries at its periphery a piston ring type seal 27 which engages the stator structure 28, the frictional contact serving to prevent rotation of the panel 21. The radial web 26 of the panel 21 carries a flange member 22 which carries the stator portion 25 of a seal, the rotary portion 23 of the seal being carried by the turbine rotor disc 24. The radial web 26 is formed with openings 35, 40 through which cooling air supplied through passage 34 flows as indicated by the arrows. Some of the air flowing through openings 35 flows radially inwardly across the surface of the rotor disc 24, through openings 42, through the central opening of the rotor disc to the downstream side of the disc; a second portion of air from the openings 35 flows radially outwards through passages 36 in the rotary seal member 23 to the chamber 37 thence through passages 39 in the rotor blades 7. Cooling air flowing through the openings 40 enters the chamber beneath the blade platforms 30, the air passing from there through passages 41 in the rotor blades.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4082974A GB1476237A (en) | 1975-08-15 | 1975-08-15 | Support structure in gas turbine engines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4082974A GB1476237A (en) | 1975-08-15 | 1975-08-15 | Support structure in gas turbine engines |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1476237A true GB1476237A (en) | 1977-06-10 |
Family
ID=10416844
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4082974A Expired GB1476237A (en) | 1975-08-15 | 1975-08-15 | Support structure in gas turbine engines |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1476237A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4218189A (en) * | 1977-08-09 | 1980-08-19 | Rolls-Royce Limited | Sealing means for bladed rotor for a gas turbine engine |
US4265590A (en) * | 1978-05-20 | 1981-05-05 | Rolls-Royce Limited | Cooling air supply arrangement for a gas turbine engine |
US4306834A (en) * | 1979-06-25 | 1981-12-22 | Westinghouse Electric Corp. | Balance piston and seal for gas turbine engine |
FR2485090A1 (en) * | 1980-05-10 | 1981-12-24 | Rolls Royce | SEAL BETWEEN THE TURBINE ROTOR OF A GAS TURBINE ENGINE AND THE STATIC STRUCTURE OF SAID ENGINE |
GB2175048A (en) * | 1985-05-06 | 1986-11-19 | Gen Electric | Blade cooling control arrangement |
GB2233401A (en) * | 1989-06-21 | 1991-01-09 | Rolls Royce Plc | Improvements in or relating to gas turbine engines |
EP2453109A1 (en) * | 2010-11-15 | 2012-05-16 | Alstom Technology Ltd | Gas turbine arrangement and method for operating a gas turbine arrangement |
CN111963320A (en) * | 2020-08-24 | 2020-11-20 | 浙江燃创透平机械股份有限公司 | Gas turbine interstage seal ring structure |
-
1975
- 1975-08-15 GB GB4082974A patent/GB1476237A/en not_active Expired
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4218189A (en) * | 1977-08-09 | 1980-08-19 | Rolls-Royce Limited | Sealing means for bladed rotor for a gas turbine engine |
US4265590A (en) * | 1978-05-20 | 1981-05-05 | Rolls-Royce Limited | Cooling air supply arrangement for a gas turbine engine |
US4306834A (en) * | 1979-06-25 | 1981-12-22 | Westinghouse Electric Corp. | Balance piston and seal for gas turbine engine |
FR2485090A1 (en) * | 1980-05-10 | 1981-12-24 | Rolls Royce | SEAL BETWEEN THE TURBINE ROTOR OF A GAS TURBINE ENGINE AND THE STATIC STRUCTURE OF SAID ENGINE |
GB2175048A (en) * | 1985-05-06 | 1986-11-19 | Gen Electric | Blade cooling control arrangement |
GB2175048B (en) * | 1985-05-06 | 1989-09-13 | Gen Electric | Blade cooling |
GB2233401A (en) * | 1989-06-21 | 1991-01-09 | Rolls Royce Plc | Improvements in or relating to gas turbine engines |
EP2453109A1 (en) * | 2010-11-15 | 2012-05-16 | Alstom Technology Ltd | Gas turbine arrangement and method for operating a gas turbine arrangement |
US9163515B2 (en) | 2010-11-15 | 2015-10-20 | Alstom Technology Ltd | Gas turbine arrangement and method for operating a gas turbine arrangement |
CN111963320A (en) * | 2020-08-24 | 2020-11-20 | 浙江燃创透平机械股份有限公司 | Gas turbine interstage seal ring structure |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
CSNS | Application of which complete specification have been accepted and published, but patent is not sealed |