GB918522A - Improvements in turbines and in the manufacture thereof - Google Patents
Improvements in turbines and in the manufacture thereofInfo
- Publication number
- GB918522A GB918522A GB567861A GB567861A GB918522A GB 918522 A GB918522 A GB 918522A GB 567861 A GB567861 A GB 567861A GB 567861 A GB567861 A GB 567861A GB 918522 A GB918522 A GB 918522A
- Authority
- GB
- United Kingdom
- Prior art keywords
- blades
- machining
- ring
- outlet
- inlet
- 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
- 238000004519 manufacturing process Methods 0.000 title 1
- 238000003754 machining Methods 0.000 abstract 6
- 230000007423 decrease Effects 0.000 abstract 2
- 239000012530 fluid Substances 0.000 abstract 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
- F01D9/00—Stators
- F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
- F01D9/04—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector
- F01D9/041—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector using 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
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
- F01D25/246—Fastening of diaphragms or stator-rings
-
- 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
- F01D9/04—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector
- F01D9/042—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector fixing blades to stators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use
- F02C6/04—Gas-turbine plants providing heated or pressurised working fluid for other apparatus, e.g. without mechanical power output
- F02C6/10—Gas-turbine plants providing heated or pressurised working fluid for other apparatus, e.g. without mechanical power output supplying working fluid to a user, e.g. a chemical process, which returns working fluid to a turbine of the plant
- F02C6/12—Turbochargers, i.e. plants for augmenting mechanical power output of internal-combustion piston engines by increase of charge pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2230/00—Manufacture
- F05D2230/60—Assembly methods
- F05D2230/61—Assembly methods using limited numbers of standard modules which can be adapted by machining
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2260/00—Function
- F05D2260/96—Preventing, counteracting or reducing vibration or noise
- F05D2260/961—Preventing, counteracting or reducing vibration or noise by mistuning rotor blades or stator vanes with irregular interblade spacing, airfoil shape
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Hydraulic Turbines (AREA)
Abstract
918,522. Elastic-fluid turbines. GOTAVERKEN A.B. Feb. 15, 1961 [Feb. 17, 1960], No. 5678/61. Class 110 (3). In a turbine comprising guide blades fixed to the turbine casing and a shroud ring encircling the blades, the blade roots are joined to an inner ring-shaped member fastened to the casing, and the inlet area is adjusted by reducing the guide blade height and by machining the inner diameter of the shroud ring to correspond. The guide blades 6, Fig. 1, are fixed to an inner part 4 of the turbine casing by means of an inner ring 7 which, as shown in Fig. 3, may be formed in sectors each comprising four blades. The inlet area of the flow passages 15 between the blades 6 can be adjusted to the required value by machining the blades to decrease their height. The shroud ring 9 surrounding the blades 6 and a guiding-piece 10 at the inlet 3 may have sufficient thickness to allow them to be machined to match the adjusted blade height. Alternatively, if the reduced blade height is confined to three alternative sizes only, the shroud ring 9 and the guiding-piece 10 may be made in a range of three different sizes, each size mainly corresponding to one of the three alternative blade heights. By the correct choice of ring and guiding-piece it is possible to make a fine adjustment with little machining. Tho shroud ring 9 may be provided with corresponding members 11 at the outlet. As shown in Fig. 3, the area of the flow passages 15 decreases towards the outlet ends of the blades, and the outlet area can consequently be increased by machining the trailing edges of the blades as at 16 to increase the outlet width of the passages 15 from a width 17 to a width 18. A consequential increase of the clearance between the blades 6 and the rotor is avoided by providing distancepieces between the ring 7 and the casing part 4 or by providing the part 4 with a machining allowance. If the blades 6 are arranged in sectors, the machining of the different sectors may be varied to vary the outlet area around the circumference, for example to allow for the inlet chamber being of volute form, to allow for local constrictions, or to take account of conditions in the vicinity of the inlet conduit.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE158860 | 1960-02-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB918522A true GB918522A (en) | 1963-02-13 |
Family
ID=20258471
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB567861A Expired GB918522A (en) | 1960-02-17 | 1961-02-15 | Improvements in turbines and in the manufacture thereof |
Country Status (3)
Country | Link |
---|---|
CH (1) | CH381017A (en) |
ES (1) | ES264649A1 (en) |
GB (1) | GB918522A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4130379A (en) * | 1977-04-07 | 1978-12-19 | Westinghouse Electric Corp. | Multiple side entry root for multiple blade group |
US4616975A (en) * | 1984-07-30 | 1986-10-14 | General Electric Company | Diaphragm for a steam turbine |
US5271714A (en) * | 1992-07-09 | 1993-12-21 | General Electric Company | Turbine nozzle support arrangement |
EP1010857A1 (en) * | 1998-12-16 | 2000-06-21 | ABB Alstom Power (Schweiz) AG | Modular steam turbine with standard blading |
ITTO20090522A1 (en) * | 2009-07-13 | 2011-01-14 | Avio Spa | TURBOMACCHINA WITH IMPELLER WITH BALLED SEGMENTS |
-
1961
- 1961-02-04 ES ES264649A patent/ES264649A1/en not_active Expired
- 1961-02-08 CH CH147761A patent/CH381017A/en unknown
- 1961-02-15 GB GB567861A patent/GB918522A/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4130379A (en) * | 1977-04-07 | 1978-12-19 | Westinghouse Electric Corp. | Multiple side entry root for multiple blade group |
US4616975A (en) * | 1984-07-30 | 1986-10-14 | General Electric Company | Diaphragm for a steam turbine |
US5271714A (en) * | 1992-07-09 | 1993-12-21 | General Electric Company | Turbine nozzle support arrangement |
EP1010857A1 (en) * | 1998-12-16 | 2000-06-21 | ABB Alstom Power (Schweiz) AG | Modular steam turbine with standard blading |
US6308407B1 (en) | 1998-12-16 | 2001-10-30 | Abb Alstom Power (Schweiz) Ag | Method of manufacturing a plurality of steam turbines for use in various applications |
ITTO20090522A1 (en) * | 2009-07-13 | 2011-01-14 | Avio Spa | TURBOMACCHINA WITH IMPELLER WITH BALLED SEGMENTS |
Also Published As
Publication number | Publication date |
---|---|
CH381017A (en) | 1964-08-15 |
ES264649A1 (en) | 1961-06-16 |
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