JPS5647603A - Moving blade of turbine - Google Patents
Moving blade of turbineInfo
- Publication number
- JPS5647603A JPS5647603A JP12386379A JP12386379A JPS5647603A JP S5647603 A JPS5647603 A JP S5647603A JP 12386379 A JP12386379 A JP 12386379A JP 12386379 A JP12386379 A JP 12386379A JP S5647603 A JPS5647603 A JP S5647603A
- Authority
- JP
- Japan
- Prior art keywords
- shroud ring
- face walls
- loss
- secondary flow
- flow
- 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
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 239000012530 fluid Substances 0.000 abstract 1
Landscapes
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
PURPOSE: To reduce the loss of secondary flow in a rotor blade and improve its stage performance, by gradually shrinking inner face walls of a shroud ring in the direction of a shaft further providing suction holes for communicating the inner face walls and outer face walls in the shroud ring of the rotor blade in a coaxial flow fluidic machine.
CONSTITUTION: The inner circumferential surface 11b of a shroud ring is arranged at a titl angle Q with respect to a turbine shaft. This causes a vortex flow 13 in the end part of a moving blade 2 to be axially accelerated, and the loss of secondary flow can be reduced. Further suction holes 24, 25, 26 which communicate inner and outer face walls 15' and 15'b of the shroud ring 15' are newly provided, and this causes the secondary flow to be decreased by suction flows 27W29. While the blow- out of fluid at pressures higher than pressures P2, P3, P4 in fin arranged chambers decrases a pressure difference axially between fins 8aW8d to also reduce a leak loss. In this way, the stage performance can be improved.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12386379A JPS5647603A (en) | 1979-09-28 | 1979-09-28 | Moving blade of turbine |
| CA000360872A CA1145263A (en) | 1979-09-28 | 1980-09-23 | Turbine blade rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12386379A JPS5647603A (en) | 1979-09-28 | 1979-09-28 | Moving blade of turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5647603A true JPS5647603A (en) | 1981-04-30 |
Family
ID=14871241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12386379A Pending JPS5647603A (en) | 1979-09-28 | 1979-09-28 | Moving blade of turbine |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS5647603A (en) |
| CA (1) | CA1145263A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1067273A1 (en) * | 1999-07-06 | 2001-01-10 | ROLLS-ROYCE plc | Shroud configuration for turbine blades |
| EP1731711A1 (en) * | 2005-06-10 | 2006-12-13 | Siemens Aktiengesellschaft | Transition from combustion chamber to turbine, heat shield, and turbine vane in a gas turbine |
| JP2012159077A (en) * | 2011-01-28 | 2012-08-23 | General Electric Co <Ge> | Turbine bucket for use in gas turbine engine and method for fabricating the same |
| US20140154061A1 (en) * | 2011-09-20 | 2014-06-05 | Mitsubishi Heavy Industries, Ltd. | Turbine |
| JP2015001180A (en) * | 2013-06-14 | 2015-01-05 | 株式会社東芝 | Axial flow turbine |
| JP2019082154A (en) * | 2017-10-31 | 2019-05-30 | 三菱重工業株式会社 | Turbine and rotor blade |
| CN110662885A (en) * | 2017-06-12 | 2020-01-07 | 三菱日立电力系统株式会社 | Axial flow rotary machine |
| US10794209B2 (en) | 2018-03-29 | 2020-10-06 | Mitsubishi Heavy Industries, Ltd. | Turbine rotor blade and rotary machine |
| WO2022123148A1 (en) * | 2020-12-10 | 2022-06-16 | Safran Aircraft Engines | Turbine blade for an aircraft turbomachine, provided with a channel for ejecting a primary flow towards an inter-lip cavity |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112196629B (en) * | 2020-11-12 | 2022-06-24 | 东方电气集团东方汽轮机有限公司 | Sealing structure and sealing method for moving blade of steam turbine |
-
1979
- 1979-09-28 JP JP12386379A patent/JPS5647603A/en active Pending
-
1980
- 1980-09-23 CA CA000360872A patent/CA1145263A/en not_active Expired
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1067273A1 (en) * | 1999-07-06 | 2001-01-10 | ROLLS-ROYCE plc | Shroud configuration for turbine blades |
| US6413045B1 (en) | 1999-07-06 | 2002-07-02 | Rolls-Royce Plc | Turbine blades |
| EP1731711A1 (en) * | 2005-06-10 | 2006-12-13 | Siemens Aktiengesellschaft | Transition from combustion chamber to turbine, heat shield, and turbine vane in a gas turbine |
| JP2012159077A (en) * | 2011-01-28 | 2012-08-23 | General Electric Co <Ge> | Turbine bucket for use in gas turbine engine and method for fabricating the same |
| US10227885B2 (en) * | 2011-09-20 | 2019-03-12 | Mitsubishi Hitachi Power Systems, Ltd. | Turbine |
| US20140154061A1 (en) * | 2011-09-20 | 2014-06-05 | Mitsubishi Heavy Industries, Ltd. | Turbine |
| JP2015001180A (en) * | 2013-06-14 | 2015-01-05 | 株式会社東芝 | Axial flow turbine |
| CN110662885A (en) * | 2017-06-12 | 2020-01-07 | 三菱日立电力系统株式会社 | Axial flow rotary machine |
| JP2019082154A (en) * | 2017-10-31 | 2019-05-30 | 三菱重工業株式会社 | Turbine and rotor blade |
| US10794209B2 (en) | 2018-03-29 | 2020-10-06 | Mitsubishi Heavy Industries, Ltd. | Turbine rotor blade and rotary machine |
| WO2022123148A1 (en) * | 2020-12-10 | 2022-06-16 | Safran Aircraft Engines | Turbine blade for an aircraft turbomachine, provided with a channel for ejecting a primary flow towards an inter-lip cavity |
| FR3117532A1 (en) * | 2020-12-10 | 2022-06-17 | Safran Aircraft Engines | Turbine blade for an aircraft turbomachine, provided with a primary flow ejection channel towards an inter-sealer cavity |
| US12372004B2 (en) | 2020-12-10 | 2025-07-29 | Safran Aircraft Engines | Turbine blade for an aircraft turbomachine, provided with a channel for ejecting a primary flow towards an inter-lip cavity |
Also Published As
| Publication number | Publication date |
|---|---|
| CA1145263A (en) | 1983-04-26 |
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