JPS5688901A - Staged turbine construction - Google Patents
Staged turbine constructionInfo
- Publication number
- JPS5688901A JPS5688901A JP16413179A JP16413179A JPS5688901A JP S5688901 A JPS5688901 A JP S5688901A JP 16413179 A JP16413179 A JP 16413179A JP 16413179 A JP16413179 A JP 16413179A JP S5688901 A JPS5688901 A JP S5688901A
- Authority
- JP
- Japan
- Prior art keywords
- face
- moving blade
- dovetail
- inrush
- confronting
- 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.)
- Pending
Links
Landscapes
- Turbine Rotor Nozzle Sealing (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
PURPOSE: To weaken a secondary flow generated near the upper face of a dovetail by providing step surfaces on the upper face of the dovetail between moving blades each of which faces to the inner face of one moving blade and has a curvature forward the back of the moving blade.
CONSTITUTION: The end face 31 of a dovetail 13 confronting the inner face of each moving blade is raised an H higher than the end face 32 confronting the back, face of the moving blade. A major inrush 25 of a working fluid is formed into main streams 26 while passing through spacings between the inner face 23 of each moving blade 11 and the back face 24 of it. A minor transverse current which is created at the edge of each moving blade near the upper face 27 of the dovetail is divided by a stage 34 and blown by the major inrush 25 running along the stage 34 before growing to an eddy or a tranverse flow, thereby reducing a secondary flow for higher efficiency of a turbine.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16413179A JPS5688901A (en) | 1979-12-19 | 1979-12-19 | Staged turbine construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16413179A JPS5688901A (en) | 1979-12-19 | 1979-12-19 | Staged turbine construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5688901A true JPS5688901A (en) | 1981-07-18 |
Family
ID=15787329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16413179A Pending JPS5688901A (en) | 1979-12-19 | 1979-12-19 | Staged turbine construction |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5688901A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58162702A (en) * | 1982-03-23 | 1983-09-27 | Mitsubishi Heavy Ind Ltd | Axial flow type turbomachine |
| US4465433A (en) * | 1982-01-29 | 1984-08-14 | Mtu Motoren- Und Turbinen-Union Muenchen Gmbh | Flow duct structure for reducing secondary flow losses in a bladed flow duct |
| EP1326005A2 (en) * | 2002-01-07 | 2003-07-09 | General Electric Company | Step-down turbine platform |
| WO2010000788A3 (en) * | 2008-07-04 | 2011-01-20 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Method and device for influencing secondary flows in a turbomachine |
-
1979
- 1979-12-19 JP JP16413179A patent/JPS5688901A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4465433A (en) * | 1982-01-29 | 1984-08-14 | Mtu Motoren- Und Turbinen-Union Muenchen Gmbh | Flow duct structure for reducing secondary flow losses in a bladed flow duct |
| JPS58162702A (en) * | 1982-03-23 | 1983-09-27 | Mitsubishi Heavy Ind Ltd | Axial flow type turbomachine |
| EP1326005A2 (en) * | 2002-01-07 | 2003-07-09 | General Electric Company | Step-down turbine platform |
| EP1326005A3 (en) * | 2002-01-07 | 2003-12-10 | General Electric Company | Step-down turbine platform |
| WO2010000788A3 (en) * | 2008-07-04 | 2011-01-20 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Method and device for influencing secondary flows in a turbomachine |
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