GB808258A - Improvements relating to bladed turbine or compressor wheels - Google Patents
Improvements relating to bladed turbine or compressor wheelsInfo
- Publication number
- GB808258A GB808258A GB11171/57A GB1117157A GB808258A GB 808258 A GB808258 A GB 808258A GB 11171/57 A GB11171/57 A GB 11171/57A GB 1117157 A GB1117157 A GB 1117157A GB 808258 A GB808258 A GB 808258A
- Authority
- GB
- United Kingdom
- Prior art keywords
- key
- rotor
- blades
- slots
- keys
- 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
- F01D5/32—Locking, e.g. by final locking blades or keys
- F01D5/326—Locking of axial insertion type blades by other means
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
808,258. Turbine and compressor bladed rotors. GENERAL MOTORS CORPORATION. April 5, 1957 [July 5, 1956], No. 11171/57. Class 110 (3). In an axial-flow turbine or compressor bladed rotor in which the blades are mounted by their roots 14 in undercut slots 17 formed in the rim 11 of the rotor, the blades are secured against axial movement in the slots by means of keys 20, one key being disposed between each pair of circumferentially-adjacent blades and each key being inserted into a slot 21 in the rotor rim between the two blades of the pair and into notches 23 in those blades. Each key is secured against radial displacement by a pin 26 inserted through aligned holes in the wheel rim and key. The blades 12 have aerofoil portions 13, root portions 14 of fir-tree form and platform portions 15 therebetween. The blade-mounting slots 17 in the rotor are of corresponding fir-tree form and the stubs 22 between the slots 17 formed with circumferentially-extending slots 21 to receive the keys 20 which are of rectangular form. Each key 20 engages slots 23 formed in the adjacent edges of each pair of blade platforms 15, the keys being secured by means of pins 26 which engage bores 27 in the rotor stubs 22 and 28 in the keys 20, the pins being a tight fit in the bores in the keys. A bore 31 is provided in the rotor stub in alignment with the bore 27 to facilitate removal of the pin. In a further embodiment, the blade-mounting slot is inclined to the turbine axis, the key 20 is disposed perpendicularly thereto and the pin 26 is disposed perpendicularly to the key.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US595874A US2949278A (en) | 1956-07-05 | 1956-07-05 | Turbine blade retention |
Publications (1)
Publication Number | Publication Date |
---|---|
GB808258A true GB808258A (en) | 1959-01-28 |
Family
ID=24385046
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB11171/57A Expired GB808258A (en) | 1956-07-05 | 1957-04-05 | Improvements relating to bladed turbine or compressor wheels |
Country Status (2)
Country | Link |
---|---|
US (1) | US2949278A (en) |
GB (1) | GB808258A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1115992B (en) * | 1959-08-07 | 1961-10-26 | Entwicklungsbau Pirna Veb | Protection against axial displacement of rotor blades with a fir tree base on gas turbines |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3309058A (en) * | 1965-06-21 | 1967-03-14 | Rolls Royce | Bladed rotor |
US3904317A (en) * | 1974-11-27 | 1975-09-09 | Gen Electric | Bucket locking mechanism |
CH581783A5 (en) * | 1975-01-30 | 1976-11-15 | Bbc Sulzer Turbomaschinen | |
FR2507679A1 (en) * | 1981-06-12 | 1982-12-17 | Snecma | DEVICE FOR LOCKING A TURBOMACHINE ROTOR BLADE |
FR2535793B1 (en) * | 1982-11-08 | 1987-04-10 | Snecma | AXIAL LOCKING DEVICE FOR BLOWER BLADES |
US4676723A (en) * | 1986-03-26 | 1987-06-30 | Westinghouse Electric Corp. | Locking system for a turbine side entry blade |
US4915587A (en) * | 1988-10-24 | 1990-04-10 | Westinghouse Electric Corp. | Apparatus for locking side entry blades into a rotor |
US5720596A (en) * | 1997-01-03 | 1998-02-24 | Westinghouse Electric Corporation | Apparatus and method for locking blades into a rotor |
US7905709B2 (en) * | 2004-02-10 | 2011-03-15 | General Electric Company | Advanced firtree and broach slot forms for turbine stage 1 and 2 buckets and rotor wheels |
CA2823409A1 (en) * | 2011-07-19 | 2013-01-24 | Elliott Company | Assembly and method of attaching stub shaft to drum of axial compressor rotor shaft |
FR3006368B1 (en) * | 2013-05-28 | 2015-07-03 | Herakles | ROTOR DISC DRAW WITH FOOT RETENTION BY FRICTION |
FR3057908B1 (en) * | 2016-10-21 | 2019-11-22 | Safran Aircraft Engines | ROTARY ASSEMBLY OF A TURBOMACHINE PROVIDED WITH AN AXIAL MAINTAINING SYSTEM OF A DAWN |
CA3000376A1 (en) * | 2017-05-23 | 2018-11-23 | Rolls-Royce Corporation | Turbine shroud assembly having ceramic matrix composite track segments with metallic attachment features |
US12012871B1 (en) * | 2023-01-31 | 2024-06-18 | Doosan Enerbility Co., Ltd. | Blade fastening assembly and gas turbine including same |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR767889A (en) * | 1934-07-25 | |||
US1545495A (en) * | 1921-08-22 | 1925-07-14 | Kolnwarth Hans | Bucken for turbines |
DE837495C (en) * | 1950-05-05 | 1952-04-28 | Eisen & Stahlind Ag | Vane fastening intended for hydraulic converters with an axially flowed through rotor or guide vane ring |
US2751189A (en) * | 1950-09-08 | 1956-06-19 | United Aircraft Corp | Blade fastening means |
GB725461A (en) * | 1953-04-10 | 1955-03-02 | Parsons C A & Co Ltd | Improvements in and relating to the axial locking of rotor blades for turbines and the like |
NL99070C (en) * | 1953-07-28 | |||
BE537113A (en) * | 1954-04-05 |
-
1956
- 1956-07-05 US US595874A patent/US2949278A/en not_active Expired - Lifetime
-
1957
- 1957-04-05 GB GB11171/57A patent/GB808258A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1115992B (en) * | 1959-08-07 | 1961-10-26 | Entwicklungsbau Pirna Veb | Protection against axial displacement of rotor blades with a fir tree base on gas turbines |
Also Published As
Publication number | Publication date |
---|---|
US2949278A (en) | 1960-08-16 |
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