GB761421A - Improvements in or relating to labyrinth parking systems for use in turbines or pumps - Google Patents
Improvements in or relating to labyrinth parking systems for use in turbines or pumpsInfo
- Publication number
- GB761421A GB761421A GB29782/54A GB2978254A GB761421A GB 761421 A GB761421 A GB 761421A GB 29782/54 A GB29782/54 A GB 29782/54A GB 2978254 A GB2978254 A GB 2978254A GB 761421 A GB761421 A GB 761421A
- Authority
- GB
- United Kingdom
- Prior art keywords
- runner
- spaces
- housing
- passages
- turbines
- 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
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/16—Sealings between pressure and suction sides
- F04D29/165—Sealings between pressure and suction sides especially adapted for liquid pumps
- F04D29/167—Sealings between pressure and suction sides especially adapted for liquid pumps of a centrifugal flow wheel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/44—Free-space packings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Hydraulic Turbines (AREA)
Abstract
761,421. Hydraulic turbines; centrifugal pumps. ESCHER WYSS AKT.-GES. Oct. 15, 1954 [Oct. 7, 1953], No. 29782/54. Classes 110 (1) and 110 (3). A labyrinth seal arranged in the flow path of leakage fluid between adjacent parts of a turbine or pump runner and its housing, comprises at least two annular throttling passages leading to and from an enlarged annular space bounded by the runner and housing, so that displacement of the runner radially from the axis alters the width of the passages to produce hydraulic forces to urge the runner back to its correct position. The runner 2 and housing 1 of a Frances turbine are shaped to provide passages 10, 11, 19, 20 leading to and from spaces 13, 22. During displacement in a radial direction axial forces produced in the spaces are balanced but radial forces produced in spaces 22 restore the runner to the central position.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH761421X | 1953-10-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB761421A true GB761421A (en) | 1956-11-14 |
Family
ID=4534721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB29782/54A Expired GB761421A (en) | 1953-10-07 | 1954-10-15 | Improvements in or relating to labyrinth parking systems for use in turbines or pumps |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB761421A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3326299A1 (en) * | 1983-07-21 | 1985-02-07 | MTU Motoren- und Turbinen-Union München GmbH, 8000 München | GAP TRAINING BETWEEN A FIXED AND A TURNING PART |
| CN113719467A (en) * | 2021-07-26 | 2021-11-30 | 江苏大学镇江流体工程装备技术研究院 | Centrifugal pump combined seal with guard ring |
-
1954
- 1954-10-15 GB GB29782/54A patent/GB761421A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3326299A1 (en) * | 1983-07-21 | 1985-02-07 | MTU Motoren- und Turbinen-Union München GmbH, 8000 München | GAP TRAINING BETWEEN A FIXED AND A TURNING PART |
| CN113719467A (en) * | 2021-07-26 | 2021-11-30 | 江苏大学镇江流体工程装备技术研究院 | Centrifugal pump combined seal with guard ring |
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