GB280221A - Improvements in blading for gas and steam turbines - Google Patents
Improvements in blading for gas and steam turbinesInfo
- Publication number
- GB280221A GB280221A GB29427/27A GB2942727A GB280221A GB 280221 A GB280221 A GB 280221A GB 29427/27 A GB29427/27 A GB 29427/27A GB 2942727 A GB2942727 A GB 2942727A GB 280221 A GB280221 A GB 280221A
- Authority
- GB
- United Kingdom
- Prior art keywords
- blade
- packing
- resilient
- slots
- root
- 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
- F01D5/30—Fixing blades to rotors; Blade roots ; Blade spacers
- F01D5/3023—Fixing blades to rotors; Blade roots ; Blade spacers of radial insertion type, e.g. in individual recesses
- F01D5/303—Fixing blades to rotors; Blade roots ; Blade spacers of radial insertion type, e.g. in individual recesses in a circumferential slot
- F01D5/3038—Fixing blades to rotors; Blade roots ; Blade spacers of radial insertion type, e.g. in individual recesses in a circumferential slot the slot having inwardly directed abutment faces on both sides
-
- 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
- F01D5/30—Fixing blades to rotors; Blade roots ; Blade spacers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
280,221. B³chi, A. Nov. 6, 1926, [Convention date]. Blades for gas and steam turbines are fixed by employing at least one elastic fixing member so that when cold, they are firmly held and when hot, are not permanently deformed owing to the high stresses caused by expansion. Fig. 1 shows such a fixing means wherein the blade-root b has a slot d and the rotor c has clearance at f and below the bladeroot. The slots d may be cut horizontally. Instead of cutting slots in the blade-roots, separate spring packing pieces may be inserted, such as n, Fig. 6. The slots may be cut in the shoulders of the rotor, as in Fig. 5. Fig. 3 shows a portion of a rotor with blades a mounted in various ways. The first blade is provided with a packing piece made elastic by the slot d. The root of the next blade is slotted for elasticity and has a solid packing piece g of a resilient piece i. The next blade has a solid root and a resilient packing piece g. The last blade has a solid root a solid packing piece g and a resilient S- shaped packing piece k. The slots or resilient packing pieces may be arranged to permit freedom of expansion in three dimensions. The packing pieces and blade-roots have clearance at f for the expansion of the unresilient parts.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH280221X | 1926-11-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB280221A true GB280221A (en) | 1928-02-23 |
Family
ID=4482604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB29427/27A Expired GB280221A (en) | 1926-11-06 | 1927-11-03 | Improvements in blading for gas and steam turbines |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB280221A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3001760A (en) * | 1959-08-07 | 1961-09-26 | Gen Motors Corp | Turbine blade lock |
| DE1128864B (en) * | 1957-03-05 | 1962-05-03 | Oerlikon Maschf | Attachment of rotor blades of an axial flow machine |
| US3172641A (en) * | 1962-11-23 | 1965-03-09 | Allis Chalmers Mfg Co | Casing construction |
| US3809495A (en) * | 1973-03-27 | 1974-05-07 | Westinghouse Electric Corp | Turbine rotor having cushioned support surfaces for ceramic blades mounted thereon |
| GB2138078A (en) * | 1983-04-14 | 1984-10-17 | Gen Electric | Dynamic response modification and stress reduction in blade root dovetail |
| EP1048821A3 (en) * | 1999-04-30 | 2002-11-20 | General Electric Company | Stress relieved blade root |
| EP1703079A1 (en) * | 2005-08-26 | 2006-09-20 | Siemens Aktiengesellschaft | Rotational solid for fixing of blades of a turbo-machine |
-
1927
- 1927-11-03 GB GB29427/27A patent/GB280221A/en not_active Expired
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1128864B (en) * | 1957-03-05 | 1962-05-03 | Oerlikon Maschf | Attachment of rotor blades of an axial flow machine |
| US3001760A (en) * | 1959-08-07 | 1961-09-26 | Gen Motors Corp | Turbine blade lock |
| US3172641A (en) * | 1962-11-23 | 1965-03-09 | Allis Chalmers Mfg Co | Casing construction |
| US3809495A (en) * | 1973-03-27 | 1974-05-07 | Westinghouse Electric Corp | Turbine rotor having cushioned support surfaces for ceramic blades mounted thereon |
| GB2138078A (en) * | 1983-04-14 | 1984-10-17 | Gen Electric | Dynamic response modification and stress reduction in blade root dovetail |
| FR2544381A1 (en) * | 1983-04-14 | 1984-10-19 | Gen Electric | ROTATING COMPONENT COMPRISING AUBES WITH MODIFIED TAVE D'ARONDE |
| EP1048821A3 (en) * | 1999-04-30 | 2002-11-20 | General Electric Company | Stress relieved blade root |
| EP1703079A1 (en) * | 2005-08-26 | 2006-09-20 | Siemens Aktiengesellschaft | Rotational solid for fixing of blades of a turbo-machine |
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