JPS5692303A - Structure of rotor blade for turbine or the like - Google Patents
Structure of rotor blade for turbine or the likeInfo
- Publication number
- JPS5692303A JPS5692303A JP16680379A JP16680379A JPS5692303A JP S5692303 A JPS5692303 A JP S5692303A JP 16680379 A JP16680379 A JP 16680379A JP 16680379 A JP16680379 A JP 16680379A JP S5692303 A JPS5692303 A JP S5692303A
- Authority
- JP
- Japan
- Prior art keywords
- rotor
- blades
- adjacent
- insertion pieces
- blade
- 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 protect rotor baldes against breakage at their tops, by fitting special insertion pieces between each adjacent two rotor blades at the positions located near the top thereof in the manner that each of the insertion pieces is fitted at one end thereof in a groove formed in the upper surface of one rotor blade and at the other end fitted in a groove formed in the lower surface of the adjacent rotor blade, and thereby preventing occurrence of self-excited vibration due to stalling flutter.
CONSTITUTION: Turbine rotor blades are constituted by a multiplicity of blades 1 which are disposed equidistantly around a rotor (not shown). In such a rotor blade structure, insertion pieces 2 made of anti-corrosive thin metal plates are extended between each adjacent two rotor blades 1, 1 at the positions near the top thereof. These insertion pieces 2 are made slightly longer than the distance between adjacent two rotor blades 1, 1 and shaped in an arcuate form having a proper radius of curvature convexed toward the inside of the blades 1. Each of these insertion pieces 2 is fitted at one end thereof in a groove 3 formed in the lower surface of one blade 1 and at the other end fitted in a groove 4 formed in the upper surface of the adjacent blade 1, so that deformation of the blades 1 near the top thereof can be restricted.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16680379A JPS5692303A (en) | 1979-12-24 | 1979-12-24 | Structure of rotor blade for turbine or the like |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16680379A JPS5692303A (en) | 1979-12-24 | 1979-12-24 | Structure of rotor blade for turbine or the like |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5692303A true JPS5692303A (en) | 1981-07-27 |
Family
ID=15837964
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16680379A Pending JPS5692303A (en) | 1979-12-24 | 1979-12-24 | Structure of rotor blade for turbine or the like |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5692303A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4734010A (en) * | 1985-05-31 | 1988-03-29 | Bbc Brown, Boveri & Company, Limited | Damping element for independent turbomachine blades |
US4784571A (en) * | 1987-02-09 | 1988-11-15 | Westinghouse Electric Corp. | Apparatus and method for reducing blade flop in steam turbine |
US5460488A (en) * | 1994-06-14 | 1995-10-24 | United Technologies Corporation | Shrouded fan blade for a turbine engine |
WO2011081768A3 (en) * | 2009-12-14 | 2012-02-16 | Siemens Energy, Inc. | Turbine blade damping device with controlled loading |
USRE45690E1 (en) | 2009-12-14 | 2015-09-29 | Siemens Energy, Inc. | Turbine blade damping device with controlled loading |
WO2017184138A1 (en) * | 2016-04-21 | 2017-10-26 | Siemens Aktiengesellschaft | Preloaded snubber assembly for turbine blades |
-
1979
- 1979-12-24 JP JP16680379A patent/JPS5692303A/en active Pending
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4734010A (en) * | 1985-05-31 | 1988-03-29 | Bbc Brown, Boveri & Company, Limited | Damping element for independent turbomachine blades |
US4784571A (en) * | 1987-02-09 | 1988-11-15 | Westinghouse Electric Corp. | Apparatus and method for reducing blade flop in steam turbine |
US5460488A (en) * | 1994-06-14 | 1995-10-24 | United Technologies Corporation | Shrouded fan blade for a turbine engine |
WO2011081768A3 (en) * | 2009-12-14 | 2012-02-16 | Siemens Energy, Inc. | Turbine blade damping device with controlled loading |
US8540488B2 (en) | 2009-12-14 | 2013-09-24 | Siemens Energy, Inc. | Turbine blade damping device with controlled loading |
USRE45690E1 (en) | 2009-12-14 | 2015-09-29 | Siemens Energy, Inc. | Turbine blade damping device with controlled loading |
WO2017184138A1 (en) * | 2016-04-21 | 2017-10-26 | Siemens Aktiengesellschaft | Preloaded snubber assembly for turbine blades |
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