GB1050027A - - Google Patents
Info
- Publication number
- GB1050027A GB1050027A GB1050027DA GB1050027A GB 1050027 A GB1050027 A GB 1050027A GB 1050027D A GB1050027D A GB 1050027DA GB 1050027 A GB1050027 A GB 1050027A
- Authority
- GB
- United Kingdom
- Prior art keywords
- blades
- blade
- shroud
- portions
- grooves
- 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.)
- Active
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
- F01D5/22—Blade-to-blade connections, e.g. for damping vibrations
- F01D5/225—Blade-to-blade connections, e.g. for damping vibrations by shrouding
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
1,050,027. Turbine and compressor bladed rotors. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Oct.22, 1965 (Nov.6, 1964], No. 45320/64. Heading F1T. A turbine or compressor rotor has at least one circumferentially extending row of blades and between each pair of adjacent blades in the row, a shroud element is retained in place by engagement of radially outwardly facing and radially inwardly facing surfaces provided on the element with complementary radially inwardly facing and radially outwardly facing surfaces provided on the two adjacent blades. In a first embodiment, two adjacent blades 25 have root portions 25R formed with grooves 27 by which the blades are mounted straddle-wise on the periphery of a turbine rotor disc, the concave and convex faces 29, 30 of the blades at the blade tips being formed with grooves 31, 33. A shroud element 35 is formed with ends 41, 43 which are shaped to correspond to the adjacent blade surfaces, the ends being formed with steps which upon assembly engage the grooves 31, 33 of the adjacent blade surfaces. The root engaging projections of the rotor disc are cut away at two diametrically opposite points to permit the blades to be assembled, the last two blades being secured by means of rivets 45, Fig. 3 (not shown), and the last two shroud elements being made in two parts which are assembled by axial movement, the two parts then being joined by welding 47. The blade tips and shroud elements may be formed with ribs 126, 136 which upon assembly from circumferential seal portions. In Fig. 5 the tip of the blade is cut away as indicated at 226I, 226T Fig. 5 (not shown), the shroud elements 235 being shaped to fit the grooves 231, 233 formed in the concave and convex sides of the blade tip portions. In Fig. 9 (not shown) the blades are formed with enlarged tip portions 327 and the shroud elements 335 engage beneath the projecting portions 329, 331. The shroud elements are formed with circumferential rib portions 337 and these extend over the blade tip portions so as to locate the shroud elements when the turbine rotor is at rest.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1050027A true GB1050027A (en) |
Family
ID=1755534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1050027D Active GB1050027A (en) |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1050027A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2138892A (en) * | 1983-04-25 | 1984-10-31 | Gen Electric | Ribbed cover piece for steam turbine rotor bucket assembly |
| GB2251897A (en) * | 1991-01-15 | 1992-07-22 | Rolls Royce Plc | Bladed rotor |
| WO2012160819A1 (en) * | 2011-05-23 | 2012-11-29 | 株式会社 東芝 | Turbine rotor blade and steam turbine |
-
0
- GB GB1050027D patent/GB1050027A/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2138892A (en) * | 1983-04-25 | 1984-10-31 | Gen Electric | Ribbed cover piece for steam turbine rotor bucket assembly |
| GB2251897A (en) * | 1991-01-15 | 1992-07-22 | Rolls Royce Plc | Bladed rotor |
| GB2251897B (en) * | 1991-01-15 | 1994-11-30 | Rolls Royce Plc | A rotor |
| WO2012160819A1 (en) * | 2011-05-23 | 2012-11-29 | 株式会社 東芝 | Turbine rotor blade and steam turbine |
| JP2012241670A (en) * | 2011-05-23 | 2012-12-10 | Toshiba Corp | Turbine rotor blade and steam turbine |
| US9506354B2 (en) | 2011-05-23 | 2016-11-29 | Kabushiki Kaisha Toshiba | Turbine rotor and steam turbine |
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