GB563727A - Improvements in and relating to sealing arrangements for elastic fluid turbines and the like - Google Patents
Improvements in and relating to sealing arrangements for elastic fluid turbines and the likeInfo
- Publication number
- GB563727A GB563727A GB3465/43A GB346543A GB563727A GB 563727 A GB563727 A GB 563727A GB 3465/43 A GB3465/43 A GB 3465/43A GB 346543 A GB346543 A GB 346543A GB 563727 A GB563727 A GB 563727A
- Authority
- GB
- United Kingdom
- Prior art keywords
- per cent
- rings
- zinc
- copper
- elastic fluid
- 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
- F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
- F01D11/02—Preventing or minimising internal leakage of working-fluid, e.g. between stages by non-contact sealings, e.g. of labyrinth type
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
563,727. Elastic fluid turbines; making packing alloys. BRITISH THOMSON-HOUSTON CO., Ltd. March 3, 1943, No. 3465. Convention date, March 12, 1942. [Class 110 (iii)] [Also in Groups II and XXII] Sealing means comprises projections 21, 22 on the blade-roots 18 and steel shroud band 20 respectively, and rings of soft alloy 26, 27, in a stator 16 into which the projections are allowed to cut during operation. Suitable alloys are approximately (a) 60 to 63 per cent copper, 33 to 37 per cent zinc and small quantities of lead and iron ; (b) solder comprising about 38 per cent copper, 32 per cent zinc and 30 per cent silver ; (c) 61 to 69 per cent copper, 12 to 18 per cent zinc, 9 to 15 per cent nickel, 4.5 to 7.5 per cent lead, and 1.25 to 3 per cent tin. Strips of the rings may be brazed or silversoldered into the grooves 24, 25, or they may be cast in. In a further method, strips of the alloy are welded in, segments being positioned at intervals around the grooves until complete rings are formed, and these afterwards machined.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US563727XA | 1942-03-12 | 1942-03-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB563727A true GB563727A (en) | 1944-08-28 |
Family
ID=22003951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3465/43A Expired GB563727A (en) | 1942-03-12 | 1943-03-03 | Improvements in and relating to sealing arrangements for elastic fluid turbines and the like |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB563727A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1110469B (en) * | 1956-03-28 | 1961-07-06 | Robert Pouit | Gas turbine with reaction blades |
| US3313476A (en) * | 1965-05-03 | 1967-04-11 | Electrolux Corp | Centrifugal fan having substantially reduced internal air recirculation |
| US3314651A (en) * | 1964-04-09 | 1967-04-18 | Rolls Royce | Sealing device |
| CN104329125A (en) * | 2014-09-04 | 2015-02-04 | 中国南方航空工业(集团)有限公司 | Gas turbine |
-
1943
- 1943-03-03 GB GB3465/43A patent/GB563727A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1110469B (en) * | 1956-03-28 | 1961-07-06 | Robert Pouit | Gas turbine with reaction blades |
| US3314651A (en) * | 1964-04-09 | 1967-04-18 | Rolls Royce | Sealing device |
| US3313476A (en) * | 1965-05-03 | 1967-04-11 | Electrolux Corp | Centrifugal fan having substantially reduced internal air recirculation |
| CN104329125A (en) * | 2014-09-04 | 2015-02-04 | 中国南方航空工业(集团)有限公司 | Gas turbine |
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