JPS5726209A - Turbine rotary blade dovetail - Google Patents
Turbine rotary blade dovetailInfo
- Publication number
- JPS5726209A JPS5726209A JP10118080A JP10118080A JPS5726209A JP S5726209 A JPS5726209 A JP S5726209A JP 10118080 A JP10118080 A JP 10118080A JP 10118080 A JP10118080 A JP 10118080A JP S5726209 A JPS5726209 A JP S5726209A
- Authority
- JP
- Japan
- Prior art keywords
- rotary blade
- dovetail
- wheel
- thrust
- turbine
- 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)
Abstract
PURPOSE: To improve reliability of turbine strength against a thrust of rotary blades, by setting arrangement of the rotary blade dovetails of an axial entry type turbine, in a contiguration inclined to the wheel shaft.
CONSTITUTION: This turbine rotaty blade shall be built up, by fabricating a wheel dovetail 4 with an inclination to the wheel 3 by a certain angle θ on one hand, while forming a rotary blade dovetail 2 of π shaped section with the same inclination before assembling this dovetail 2 along the wheel dovetail 4. Thus provided inclination angle θ can contribute to decrease the resistances T and T' acting on the rotary blade stopper 8 and insert strip 6 subjected to the thrust T caused by a pressure difference between the entrance and exit of a rotary blade, down to Tcosθ. Accordingly, the reliability of strength of insert trip 6 etc. which support the thrust, can be well improved.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10118080A JPS5726209A (en) | 1980-07-25 | 1980-07-25 | Turbine rotary blade dovetail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10118080A JPS5726209A (en) | 1980-07-25 | 1980-07-25 | Turbine rotary blade dovetail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5726209A true JPS5726209A (en) | 1982-02-12 |
Family
ID=14293789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10118080A Pending JPS5726209A (en) | 1980-07-25 | 1980-07-25 | Turbine rotary blade dovetail |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5726209A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63173802A (en) * | 1986-12-29 | 1988-07-18 | ユナイテッド・テクノロジーズ・コーポレイション | Rotor assembly |
| EP0321825A2 (en) * | 1987-12-19 | 1989-06-28 | Mtu Motoren- Und Turbinen-Union MàNchen Gmbh | Axially traversed row of rotor blades for compressors or turbines |
| JP2006283681A (en) * | 2005-04-01 | 2006-10-19 | Hitachi Ltd | Steam turbine blade, steam turbine rotor, steam turbine using the same, and power plant |
| FR2903138A1 (en) * | 2006-06-28 | 2008-01-04 | Snecma Sa | Turbomachine revolving blade e.g. fan blade, has fastening foot engaged and radially retained in cavity of corresponding shape of rotor disk with cavities having helical shape, where foot has helical shape |
-
1980
- 1980-07-25 JP JP10118080A patent/JPS5726209A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63173802A (en) * | 1986-12-29 | 1988-07-18 | ユナイテッド・テクノロジーズ・コーポレイション | Rotor assembly |
| US4767274A (en) * | 1986-12-29 | 1988-08-30 | United Technologies Corporation | Multiple lug blade to disk attachment |
| EP0321825A2 (en) * | 1987-12-19 | 1989-06-28 | Mtu Motoren- Und Turbinen-Union MàNchen Gmbh | Axially traversed row of rotor blades for compressors or turbines |
| JP2006283681A (en) * | 2005-04-01 | 2006-10-19 | Hitachi Ltd | Steam turbine blade, steam turbine rotor, steam turbine using the same, and power plant |
| FR2903138A1 (en) * | 2006-06-28 | 2008-01-04 | Snecma Sa | Turbomachine revolving blade e.g. fan blade, has fastening foot engaged and radially retained in cavity of corresponding shape of rotor disk with cavities having helical shape, where foot has helical shape |
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