EP1120545A3 - Locking of rotorblades in axial turbines - Google Patents
Locking of rotorblades in axial turbines Download PDFInfo
- Publication number
- EP1120545A3 EP1120545A3 EP00118862A EP00118862A EP1120545A3 EP 1120545 A3 EP1120545 A3 EP 1120545A3 EP 00118862 A EP00118862 A EP 00118862A EP 00118862 A EP00118862 A EP 00118862A EP 1120545 A3 EP1120545 A3 EP 1120545A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- rotor blades
- retaining
- retaining ring
- locking
- rotorblades
- 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.)
- Granted
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
- F01D5/32—Locking, e.g. by final locking blades or keys
- F01D5/326—Locking of axial insertion type blades by other means
-
- 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
- F01D5/3015—Fixing blades to rotors; Blade roots ; Blade spacers of axial insertion type with side plates
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
Die Erfindung betrifft eine Rückhaltevorrichtung für Rotorschaufeln (4) einer Axialturbomaschine, die an einer Rotorscheibe Schaufelfußaufnahmen zur Aufnahme von Rotorschaufeln (4) aufweist, welche diese in radialer Richtung fixieren, die weiterhin einen geschlossenen, umlaufenden Rückhaltering (1) zur axialen Fixierung der Rotorschaufeln (4) in den Schaufelfußaufnahmen und eine Verriegelungseinrichtung (19) zum Festlegen des Rückhalterings (1) in axialer Richtung aufweist. Die Rückhaltevorrichtung zeichnet sich dadurch aus, daß der Rückhaltering (1) an seinem Außenumfang mit Abschnitten der Schaufelfußaufnahmen korrespondierende Aussparungen und erhabene Abschnitte (17) aufweist. Durch die Trennung der Rückhaltefunktion und der Dichtungsfunktion wird eine Gewichtsersparnis erzielt. The invention relates to a retaining device for rotor blades (4) of an axial turbomachine having rotor blades on a rotor disk receiving rotor blades (4) which fix them in the radial direction, which further comprises a closed, circumferential retaining ring (1) for axially fixing the rotor blades (1). 4) in the Schaufelfußaufnahmen and a locking device (19) for fixing the retaining ring (1) in the axial direction. The retaining device is characterized in that the retaining ring (1) on its outer circumference with sections of Schaufelfußaufnahmen corresponding recesses and raised portions (17). By separating the retaining function and the sealing function, a weight saving is achieved.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19960896A DE19960896A1 (en) | 1999-12-17 | 1999-12-17 | Retaining device for rotor blades of axial turbine engine, with recesses in outer circumference of retainer corresponding to sections of blade receivers |
DE19960896 | 1999-12-17 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1120545A2 EP1120545A2 (en) | 2001-08-01 |
EP1120545A3 true EP1120545A3 (en) | 2004-01-14 |
EP1120545B1 EP1120545B1 (en) | 2006-10-18 |
Family
ID=7933025
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00118862A Expired - Lifetime EP1120545B1 (en) | 1999-12-17 | 2000-08-31 | Locking device for rotorblades in axial turbines |
Country Status (3)
Country | Link |
---|---|
US (1) | US6488473B1 (en) |
EP (1) | EP1120545B1 (en) |
DE (2) | DE19960896A1 (en) |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9925261D0 (en) * | 1999-10-27 | 1999-12-29 | Rolls Royce Plc | Locking devices |
US6951448B2 (en) * | 2002-04-16 | 2005-10-04 | United Technologies Corporation | Axial retention system and components thereof for a bladed rotor |
GB0302116D0 (en) * | 2003-01-30 | 2003-03-05 | Rolls Royce Plc | A rotor |
GB0413652D0 (en) | 2004-06-18 | 2004-07-21 | Rolls Royce Plc | Gas turbine engine structure |
US7530791B2 (en) * | 2005-12-22 | 2009-05-12 | Pratt & Whitney Canada Corp. | Turbine blade retaining apparatus |
JP2007247406A (en) * | 2006-03-13 | 2007-09-27 | Ihi Corp | Holding structure of fan blade |
FR2900437B1 (en) * | 2006-04-27 | 2008-07-25 | Snecma Sa | SYSTEM FOR RETENTING AUBES IN A ROTOR |
FR2928406A1 (en) * | 2008-03-07 | 2009-09-11 | Snecma Sa | Rotor disk for aeronautical turbomachine, has projections provided at downstream end of clamp of disk, where each projection axially cooperates with another projection of flange when clamp of flange is placed around clamp of disk |
FR2939832B1 (en) * | 2008-12-11 | 2011-01-07 | Turbomeca | TURBINE WHEEL EQUIPPED WITH AXIAL HOLDING DEVICE LOCKING BLADES WITH RESPECT TO A DISK. |
US8814524B2 (en) * | 2008-12-11 | 2014-08-26 | Rolls-Royce Corporation | Wheel formed from a bladed ring and disk |
FR2939834B1 (en) * | 2008-12-17 | 2016-02-19 | Turbomeca | TURBINE WHEEL WITH AXIAL RETENTION SYSTEM OF AUBES |
US8905717B2 (en) | 2010-10-06 | 2014-12-09 | General Electric Company | Turbine bucket lockwire rotation prevention |
US8864471B2 (en) | 2011-08-12 | 2014-10-21 | Hamilton Sundstrand Corporation | Gas turbine rotor with purge blades |
US9112383B2 (en) | 2011-10-31 | 2015-08-18 | General Electric Company | System and method for Var injection at a distributed power generation source |
EP2696035A1 (en) | 2012-08-09 | 2014-02-12 | MTU Aero Engines GmbH | Retention device for rotor blades of a fluid flow engine and corresponding assembly process |
US9664056B2 (en) * | 2013-08-23 | 2017-05-30 | General Electric Company | Turbine system and adapter |
GB201317161D0 (en) * | 2013-09-27 | 2013-11-06 | Rolls Royce Plc | Retainer plate |
EP2860350A1 (en) * | 2013-10-10 | 2015-04-15 | Siemens Aktiengesellschaft | Turbine blade and gas turbine |
EP2860349A1 (en) * | 2013-10-10 | 2015-04-15 | Siemens Aktiengesellschaft | Turbine blade and gas turbine |
FR3024491B1 (en) * | 2014-08-01 | 2018-12-07 | Safran Aircraft Engines | ROTARY ASSEMBLY FOR TURBOMACHINE WITH DEVICE FOR PLACING AUBES |
KR102182102B1 (en) | 2014-11-27 | 2020-11-23 | 한화에어로스페이스 주식회사 | A turbine apparatus |
FR3029962B1 (en) * | 2014-12-11 | 2019-08-23 | Safran Aircraft Engines | AXIAL BLOCKING OF AUBES IN A TURBOMACHINE WHEEL |
EP3564489A1 (en) * | 2018-05-03 | 2019-11-06 | Siemens Aktiengesellschaft | Rotor with for centrifugal forces optimized contact surfaces |
EP3581765A1 (en) * | 2018-06-11 | 2019-12-18 | Siemens Aktiengesellschaft | Rotor having rotor blades attached axially to the rotor disc |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0286227A2 (en) * | 1987-03-06 | 1988-10-12 | ROLLS-ROYCE plc | Turbo machine rotor assembly |
EP0475879A1 (en) * | 1990-09-11 | 1992-03-18 | Pratt & Whitney Canada, Inc. | Fan blade axial retention device |
GB2258273A (en) * | 1991-08-02 | 1993-02-03 | Ruston Gas Turbines Ltd | Rotor blade locking arrangement. |
US5330324A (en) * | 1992-09-09 | 1994-07-19 | Societe Nationale D'etude Et De Construction De Moteurs D'aviation "Snecma" | Annular gasket disposed at one axial extremity of a rotor and covering blade feet |
FR2710103A1 (en) * | 1993-09-16 | 1995-03-24 | Snecma | Turbomachine rotor flange and assembly of this flange to a rotor |
EP0833039A1 (en) * | 1996-09-26 | 1998-04-01 | ROLLS-ROYCE plc | Seal plate for a turbine engine |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1479332A (en) * | 1974-11-06 | 1977-07-13 | Rolls Royce | Means for retaining blades to a disc or like structure |
GB2042652B (en) * | 1979-02-21 | 1983-07-20 | Rolls Royce | Joint making packing |
US4566857A (en) * | 1980-12-19 | 1986-01-28 | United Technologies Corporation | Locking of rotor blades on a rotor disk |
FR2524932A1 (en) * | 1982-04-08 | 1983-10-14 | Snecma | DEVICE FOR AXIAL RETENTION OF BLADE FEET IN A TURBOMACHINE DISC |
FR2603333B1 (en) * | 1986-09-03 | 1990-07-20 | Snecma | TURBOMACHINE ROTOR COMPRISING A MEANS OF AXIAL LOCKING AND SEALING OF BLADES MOUNTED IN AXIAL PINS OF THE DISC AND MOUNTING METHOD |
FR2637321B1 (en) * | 1988-10-05 | 1990-11-30 | Snecma | TURBOMACHINE ROTOR PROVIDED WITH A BLADE FIXING DEVICE |
US4921405A (en) * | 1988-11-10 | 1990-05-01 | Allied-Signal Inc. | Dual structure turbine blade |
US4846628A (en) | 1988-12-23 | 1989-07-11 | United Technologies Corporation | Rotor assembly for a turbomachine |
FR2663997B1 (en) | 1990-06-27 | 1993-12-24 | Snecma | DEVICE FOR FIXING A REVOLUTION CROWN ON A TURBOMACHINE DISC. |
US5256035A (en) * | 1992-06-01 | 1993-10-26 | United Technologies Corporation | Rotor blade retention and sealing construction |
GB9517369D0 (en) | 1995-08-24 | 1995-10-25 | Rolls Royce Plc | Bladed rotor |
-
1999
- 1999-12-17 DE DE19960896A patent/DE19960896A1/en not_active Withdrawn
-
2000
- 2000-08-31 DE DE50013633T patent/DE50013633D1/en not_active Expired - Lifetime
- 2000-08-31 EP EP00118862A patent/EP1120545B1/en not_active Expired - Lifetime
- 2000-09-20 US US09/666,145 patent/US6488473B1/en not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0286227A2 (en) * | 1987-03-06 | 1988-10-12 | ROLLS-ROYCE plc | Turbo machine rotor assembly |
EP0475879A1 (en) * | 1990-09-11 | 1992-03-18 | Pratt & Whitney Canada, Inc. | Fan blade axial retention device |
GB2258273A (en) * | 1991-08-02 | 1993-02-03 | Ruston Gas Turbines Ltd | Rotor blade locking arrangement. |
US5330324A (en) * | 1992-09-09 | 1994-07-19 | Societe Nationale D'etude Et De Construction De Moteurs D'aviation "Snecma" | Annular gasket disposed at one axial extremity of a rotor and covering blade feet |
FR2710103A1 (en) * | 1993-09-16 | 1995-03-24 | Snecma | Turbomachine rotor flange and assembly of this flange to a rotor |
EP0833039A1 (en) * | 1996-09-26 | 1998-04-01 | ROLLS-ROYCE plc | Seal plate for a turbine engine |
Also Published As
Publication number | Publication date |
---|---|
DE19960896A1 (en) | 2001-06-28 |
EP1120545A2 (en) | 2001-08-01 |
US6488473B1 (en) | 2002-12-03 |
EP1120545B1 (en) | 2006-10-18 |
DE50013633D1 (en) | 2006-11-30 |
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