EP1120545A3 - Locking of rotorblades in axial turbines - Google Patents

Locking of rotorblades in axial turbines Download PDF

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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
Application number
EP00118862A
Other languages
German (de)
French (fr)
Other versions
EP1120545A2 (en
EP1120545B1 (en
Inventor
Stuart Dr. Lee
Peter Broadhead
Tim Hopp
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rolls Royce Deutschland Ltd and Co KG
Original Assignee
Rolls Royce Deutschland Ltd and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Rolls Royce Deutschland Ltd and Co KG filed Critical Rolls Royce Deutschland Ltd and Co KG
Publication of EP1120545A2 publication Critical patent/EP1120545A2/en
Publication of EP1120545A3 publication Critical patent/EP1120545A3/en
Application granted granted Critical
Publication of EP1120545B1 publication Critical patent/EP1120545B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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.

Figure 00000001
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.
Figure 00000001
EP00118862A 1999-12-17 2000-08-31 Locking device for rotorblades in axial turbines Expired - Lifetime EP1120545B1 (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (6)

* Cited by examiner, † Cited by third party
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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