GB851306A - Improvements in or relating to turbine blades - Google Patents
Improvements in or relating to turbine bladesInfo
- Publication number
- GB851306A GB851306A GB364558A GB364558A GB851306A GB 851306 A GB851306 A GB 851306A GB 364558 A GB364558 A GB 364558A GB 364558 A GB364558 A GB 364558A GB 851306 A GB851306 A GB 851306A
- Authority
- GB
- United Kingdom
- Prior art keywords
- blade
- rotor
- cooling
- zig
- coolant
- 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
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/12—Blades
- F01D5/14—Form or construction
- F01D5/18—Hollow blades, i.e. blades with cooling or heating channels or cavities; Heating, heat-insulating or cooling means on blades
- F01D5/181—Blades having a closed internal cavity containing a cooling medium, e.g. sodium
-
- 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
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/02—Blade-carrying members, e.g. rotors
- F01D5/08—Heating, heat-insulating or cooling means
- F01D5/081—Cooling fluid being directed on the side of the rotor disc or at the roots of the blades
-
- 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
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/12—Blades
- F01D5/14—Form or construction
- F01D5/18—Hollow blades, i.e. blades with cooling or heating channels or cavities; Heating, heat-insulating or cooling means on blades
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
851,306. Turbine blades. NAPIER & SON Ltd., D. Jan. 19, 1959 (Feb. 4, 1958], No. 3645/58. Class 110 (3). In a turbine having blades 31, 32 on axiallyspaced rotor discs 25, 26 and wherein each blade is formed with at least one sealed internal cavity passage 14 extending through a major part of the blade length and into a blade root 12 and is partly filled with a coolant, having a melting point below 650‹ C., guides are porvided which in conjunction with cooling fins 20 on the blade roots direct a flow of cooling air over the blade roots on two rotor discs in turn, the air flowing in a zig-zag path over each blade root. The coolant is preferably sodium or an alloy which is solid at room temperature, but is liquid at 650‹ C. Between the rotor discs 25, 26 is an intermediate disc 27 rotating with them and co-operating with a labyrinth seal 28 on a stator blade ring 29. Cover-plates 34, 35 are secured to the outer faces of the turbine discs to co-operate with the fins 20 to form the zig-zag cooling flow passages. Cooling air is admitted between the rotor disc 25 and an end-plate 36 and flows through the zig-zag fin system, Fig. 1, through passages 33 in the intermediate disc 27, and then through the fin cooling system of the rotor blades 32. The plates 34, 35, 36, the walls of the passages 33 and the flanges 41 comprise the guides for the air. The coolant is circulated by convection and thermo-syphoning, the rate of circulation being multiplied by the high centrifugal effect when running.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB364558A GB851306A (en) | 1958-02-04 | 1958-02-04 | Improvements in or relating to turbine blades |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB364558A GB851306A (en) | 1958-02-04 | 1958-02-04 | Improvements in or relating to turbine blades |
Publications (1)
Publication Number | Publication Date |
---|---|
GB851306A true GB851306A (en) | 1960-10-12 |
Family
ID=9762234
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB364558A Expired GB851306A (en) | 1958-02-04 | 1958-02-04 | Improvements in or relating to turbine blades |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB851306A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4035102A (en) * | 1975-04-01 | 1977-07-12 | Kraftwerk Union Aktiengesellschaft | Gas turbine of disc-type construction |
US4484858A (en) * | 1981-12-03 | 1984-11-27 | Hitachi, Ltd. | Turbine rotor with means for preventing air leaks through outward end of spacer |
FR2557206A1 (en) * | 1983-12-22 | 1985-06-28 | United Technologies Corp | TWO-STAGE ROTOR ARRANGEMENT WITH IMPROVED CIRCULATION OF THE COOLING AGENT |
FR2557205A1 (en) * | 1983-12-22 | 1985-06-28 | United Technologies Corp | ROTOR WITH DOUBLE PASS COOLING OF THE HEELS OF THE AUBES |
JP2014163386A (en) * | 2013-02-25 | 2014-09-08 | General Electric Co <Ge> | Drum rotor dovetail component and related drum rotor system |
US20150157515A1 (en) * | 2013-12-10 | 2015-06-11 | Derek Amanatullah | Cool Cut Cast Saw Blade |
-
1958
- 1958-02-04 GB GB364558A patent/GB851306A/en not_active Expired
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4035102A (en) * | 1975-04-01 | 1977-07-12 | Kraftwerk Union Aktiengesellschaft | Gas turbine of disc-type construction |
US4484858A (en) * | 1981-12-03 | 1984-11-27 | Hitachi, Ltd. | Turbine rotor with means for preventing air leaks through outward end of spacer |
FR2557206A1 (en) * | 1983-12-22 | 1985-06-28 | United Technologies Corp | TWO-STAGE ROTOR ARRANGEMENT WITH IMPROVED CIRCULATION OF THE COOLING AGENT |
FR2557205A1 (en) * | 1983-12-22 | 1985-06-28 | United Technologies Corp | ROTOR WITH DOUBLE PASS COOLING OF THE HEELS OF THE AUBES |
GB2151715A (en) * | 1983-12-22 | 1985-07-24 | United Technologies Corp | Two stage rotor assembly with improved coolant flow |
GB2151714A (en) * | 1983-12-22 | 1985-07-24 | United Technologies Corp | Rotor with double pass root blade root cooling |
TR23227A (en) * | 1983-12-22 | 1989-06-23 | United Technologies Corp | BREAKERED REFRIGERANT FLOW TWO-STAGE MOTOR HARDWARE |
JP2014163386A (en) * | 2013-02-25 | 2014-09-08 | General Electric Co <Ge> | Drum rotor dovetail component and related drum rotor system |
US20150157515A1 (en) * | 2013-12-10 | 2015-06-11 | Derek Amanatullah | Cool Cut Cast Saw Blade |
US9468570B2 (en) * | 2013-12-10 | 2016-10-18 | Derek Amanatullah | Cool cut cast saw blade |
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