EP0705959A3 - Fussform für Turbomaschinenschaufeln - Google Patents
Fussform für Turbomaschinenschaufeln Download PDFInfo
- Publication number
- EP0705959A3 EP0705959A3 EP95810586A EP95810586A EP0705959A3 EP 0705959 A3 EP0705959 A3 EP 0705959A3 EP 95810586 A EP95810586 A EP 95810586A EP 95810586 A EP95810586 A EP 95810586A EP 0705959 A3 EP0705959 A3 EP 0705959A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- curve radius
- supporting surface
- adjoining
- bearing surfaces
- notches
- 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.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/30—Fixing blades to rotors; Blade roots ; Blade spacers
- F01D5/3007—Fixing blades to rotors; Blade roots ; Blade spacers of axial insertion type
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4435268A DE4435268A1 (de) | 1994-10-01 | 1994-10-01 | Beschaufelter Rotor einer Turbomaschine |
| DE4435268 | 1994-10-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0705959A2 EP0705959A2 (de) | 1996-04-10 |
| EP0705959A3 true EP0705959A3 (de) | 1998-01-07 |
Family
ID=6529803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP95810586A Withdrawn EP0705959A3 (de) | 1994-10-01 | 1995-09-20 | Fussform für Turbomaschinenschaufeln |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US5554005A (de) |
| EP (1) | EP0705959A3 (de) |
| JP (1) | JPH08100603A (de) |
| DE (1) | DE4435268A1 (de) |
Families Citing this family (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19728085A1 (de) * | 1997-07-02 | 1999-01-07 | Asea Brown Boveri | Fügeverbindung zwischen zwei Fügepartnern sowie deren Verwendung |
| US6033185A (en) * | 1998-09-28 | 2000-03-07 | General Electric Company | Stress relieved dovetail |
| GB2442968B (en) * | 2006-10-20 | 2009-08-19 | Rolls Royce Plc | A turbomachine rotor blade and a turbomachine rotor |
| US20080232972A1 (en) * | 2007-03-23 | 2008-09-25 | Richard Bouchard | Blade fixing for a blade in a gas turbine engine |
| US8047797B2 (en) * | 2007-07-16 | 2011-11-01 | Nuovo Pignone Holdings, S.P.A. | Steam turbine and rotating blade |
| US8038404B2 (en) * | 2007-07-16 | 2011-10-18 | Nuovo Pignone Holdings, S.P.A. | Steam turbine and rotating blade |
| EP2045444B1 (de) * | 2007-10-01 | 2015-11-18 | Alstom Technology Ltd | Laufschaufel, Verfahren zur Herstellung einer Laufschaufel, sowie Verdichter mit einer solchen Laufschaufel |
| DE102007051838A1 (de) * | 2007-10-30 | 2009-05-07 | Rolls-Royce Deutschland Ltd & Co Kg | Gasturbinenschaufelfuß |
| US8047796B2 (en) * | 2007-11-16 | 2011-11-01 | General Electric Company | Dovetail attachment for use with turbine assemblies and methods of assembling turbine assemblies |
| US20090285690A1 (en) * | 2008-05-19 | 2009-11-19 | Brown Clayton D | Axial blade slot pressure face with undercut |
| EP2546465A1 (de) | 2011-07-14 | 2013-01-16 | Siemens Aktiengesellschaft | Schaufelfuss, zugehörige Schaufel, Rotorscheibe und Turbomaschinenanordnung |
| US9359905B2 (en) | 2012-02-27 | 2016-06-07 | Solar Turbines Incorporated | Turbine engine rotor blade groove |
| US10072507B2 (en) | 2012-10-25 | 2018-09-11 | United Technologies Corporation | Redundant airfoil attachment |
| EP2762676A1 (de) * | 2013-02-04 | 2014-08-06 | Siemens Aktiengesellschaft | Turbomaschinen-Rotorschaufel, Turbomaschinen-Rotorscheibe, Turbomaschinenrotor und Gasturbinenmotor mit unterschiedlichen Kontaktflächenwinkeln des Schaufelfusses und der Schaufelnut |
| EP2860361B1 (de) | 2013-10-08 | 2017-03-01 | MTU Aero Engines GmbH | Bauteilabstützung und Strömungsmaschine |
| GB201416505D0 (en) * | 2014-09-18 | 2014-11-05 | Rolls Royce Plc | Gas turbine engine |
| JP2016223310A (ja) * | 2015-05-27 | 2016-12-28 | 三菱日立パワーシステムズ株式会社 | タービンおよびタービン運用方法 |
| JP6521273B2 (ja) * | 2015-08-21 | 2019-05-29 | 三菱重工コンプレッサ株式会社 | 蒸気タービン |
| EP3159483A1 (de) * | 2015-10-22 | 2017-04-26 | Siemens Aktiengesellschaft | Schaufelträger zur befestigung von laufschaufeln einer thermischen strömungsmaschine |
| JP6785555B2 (ja) * | 2016-01-15 | 2020-11-18 | 三菱パワー株式会社 | 動翼のタービンロータへの組付方法 |
| US10895160B1 (en) * | 2017-04-07 | 2021-01-19 | Glenn B. Sinclair | Stress relief via unblended edge radii in blade attachments in gas turbines |
| CN107143380B (zh) * | 2017-05-27 | 2019-04-02 | 中国航发湖南动力机械研究所 | 燃气涡轮盘榫槽设计方法、燃气涡轮盘及航空发动机 |
| JP7385992B2 (ja) * | 2018-12-28 | 2023-11-24 | 川崎重工業株式会社 | 回転体の動翼およびディスク |
| DE102022202368A1 (de) * | 2022-03-10 | 2023-09-14 | Siemens Energy Global GmbH & Co. KG | Nutdesign einer Scheibe für eine Turbinenschaufel, Rotor und ein Verfahren |
| US12055069B2 (en) * | 2022-09-20 | 2024-08-06 | Siemens Energy, Inc. | System and method for reducing blade hook stress in a turbine blade |
| US12305533B2 (en) * | 2023-06-23 | 2025-05-20 | Pratt & Whitney Canada Corp. | Turbine rotor dovetail structure with splines |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE859838C (de) * | 1951-04-07 | 1952-12-15 | Maschf Augsburg Nuernberg Ag | Maschinenbauteile aus keramischen Werkstoffen |
| GB2011552A (en) * | 1977-12-27 | 1979-07-11 | United Technologies Corp | Rotor blade attachment |
| JPS58167807A (ja) * | 1982-03-29 | 1983-10-04 | Hitachi Ltd | タ−ボ機械のブレ−ド取付構造 |
| WO1987000778A1 (en) * | 1985-07-30 | 1987-02-12 | Westinghouse Electric Corporation | Method of making scalable side entry turbine blade roots |
| EP0291725A1 (de) * | 1987-05-22 | 1988-11-23 | Westinghouse Electric Corporation | Turbinenschaufelbefestigung |
| EP0478234A1 (de) * | 1990-09-27 | 1992-04-01 | General Electric Company | Rotorschaufel-Befestigung mit spannungsenlasteter Nut |
| US5176500A (en) * | 1992-03-24 | 1993-01-05 | Westinghouse Electric Corp. | Two-lug side-entry turbine blade attachment |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE413046B (sv) | 1977-12-28 | 1980-03-31 | Gotto Raymond John | Tendstiftslas |
| GB2030657B (en) * | 1978-09-30 | 1982-08-11 | Rolls Royce | Blade for gas turbine engine |
| GB2238581B (en) * | 1989-11-30 | 1994-01-12 | Rolls Royce Plc | Improved attachment of a gas turbine engine blade to a turbine rotor disc |
| US5152669A (en) * | 1990-06-26 | 1992-10-06 | Westinghouse Electric Corp. | Turbomachine blade fastening |
| US5147180A (en) * | 1991-03-21 | 1992-09-15 | Westinghouse Electric Corp. | Optimized blade root profile for steam turbine blades |
| US5160242A (en) * | 1991-05-31 | 1992-11-03 | Westinghouse Electric Corp. | Freestanding mixed tuned steam turbine blade |
-
1994
- 1994-10-01 DE DE4435268A patent/DE4435268A1/de not_active Withdrawn
-
1995
- 1995-08-03 US US08/510,776 patent/US5554005A/en not_active Expired - Fee Related
- 1995-09-20 EP EP95810586A patent/EP0705959A3/de not_active Withdrawn
- 1995-09-28 JP JP7251344A patent/JPH08100603A/ja active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE859838C (de) * | 1951-04-07 | 1952-12-15 | Maschf Augsburg Nuernberg Ag | Maschinenbauteile aus keramischen Werkstoffen |
| GB2011552A (en) * | 1977-12-27 | 1979-07-11 | United Technologies Corp | Rotor blade attachment |
| JPS58167807A (ja) * | 1982-03-29 | 1983-10-04 | Hitachi Ltd | タ−ボ機械のブレ−ド取付構造 |
| WO1987000778A1 (en) * | 1985-07-30 | 1987-02-12 | Westinghouse Electric Corporation | Method of making scalable side entry turbine blade roots |
| EP0291725A1 (de) * | 1987-05-22 | 1988-11-23 | Westinghouse Electric Corporation | Turbinenschaufelbefestigung |
| EP0478234A1 (de) * | 1990-09-27 | 1992-04-01 | General Electric Company | Rotorschaufel-Befestigung mit spannungsenlasteter Nut |
| US5176500A (en) * | 1992-03-24 | 1993-01-05 | Westinghouse Electric Corp. | Two-lug side-entry turbine blade attachment |
Non-Patent Citations (1)
| Title |
|---|
| PATENT ABSTRACTS OF JAPAN vol. 008, no. 005 (M - 267) 11 January 1984 (1984-01-11) * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE4435268A1 (de) | 1996-04-04 |
| EP0705959A2 (de) | 1996-04-10 |
| US5554005A (en) | 1996-09-10 |
| JPH08100603A (ja) | 1996-04-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): DE FR GB IT |
|
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: ASEA BROWN BOVERI AG |
|
| PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
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| AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): DE FR GB IT |
|
| 17P | Request for examination filed |
Effective date: 19980520 |
|
| 17Q | First examination report despatched |
Effective date: 19991026 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20000307 |