GB1523422A - Turbo-machines - Google Patents

Turbo-machines

Info

Publication number
GB1523422A
GB1523422A GB1238177A GB1238177A GB1523422A GB 1523422 A GB1523422 A GB 1523422A GB 1238177 A GB1238177 A GB 1238177A GB 1238177 A GB1238177 A GB 1238177A GB 1523422 A GB1523422 A GB 1523422A
Authority
GB
United Kingdom
Prior art keywords
rotor
march
blade
held
radially
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.)
Expired
Application number
GB1238177A
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.)
Safran Aircraft Engines SAS
Original Assignee
Societe Nationale dEtude et de Construction de Moteurs dAviation SNECMA
SNECMA SAS
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 Societe Nationale dEtude et de Construction de Moteurs dAviation SNECMA, SNECMA SAS filed Critical Societe Nationale dEtude et de Construction de Moteurs dAviation SNECMA
Publication of GB1523422A publication Critical patent/GB1523422A/en
Expired 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
    • F01D5/323—Locking of axial insertion type blades by means of a key or the like parallel to the axis of the rotor

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

1523422 Rotor blade fixing SOC NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION 24 March 1977 [25 March 1976] 12381/77 Heading FIT Each blade 1 of a fan or compressor is locked in an axially extending dovetail rotor slot 3 by a radially extending U-shaped member 6 engaging mating recesses 7, 8 in the blade root 2 and rotor 4 respectively. Member 6 is held radially by flexible retainer ring 14 itself held by projection 13 on fairing 10. Modified U-shaped members and retainers are described.
GB1238177A 1976-03-25 1977-03-24 Turbo-machines Expired GB1523422A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7609249A FR2345605A1 (en) 1976-03-25 1976-03-25 RETAINING DEVICE FOR BLOWER BLADES

Publications (1)

Publication Number Publication Date
GB1523422A true GB1523422A (en) 1978-08-31

Family

ID=9171165

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1238177A Expired GB1523422A (en) 1976-03-25 1977-03-24 Turbo-machines

Country Status (2)

Country Link
FR (1) FR2345605A1 (en)
GB (1) GB1523422A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2272027A (en) * 1992-10-28 1994-05-04 Snecma Interlocking the ends of blades
EP0597586A1 (en) * 1992-11-11 1994-05-18 ROLLS-ROYCE plc Gas turbine engine fan blade assembly
EP0690203A2 (en) 1994-06-28 1996-01-03 ROLLS-ROYCE plc Fixing system for the fan blade of a gas turbine engine
US5913660A (en) * 1996-07-27 1999-06-22 Rolls-Royce Plc Gas turbine engine fan blade retention
EP0971096A2 (en) 1998-07-07 2000-01-12 ROLLS-ROYCE plc Attaching a rotor blade to a rotor
WO2003102379A1 (en) * 2002-05-28 2003-12-11 Mtu Aero Engines Gmbh Arrangement for axially and radially fixing the guide vanes of a vane ring of a gas turbine
GB2436132A (en) * 2006-03-14 2007-09-19 Ishikawajima Harima Heavy Ind A fan blade having a fore portion engaged by the nosecone
US20120282104A1 (en) * 2011-05-06 2012-11-08 Snecma Turbine engine fan disk
CN103502653A (en) * 2011-05-04 2014-01-08 斯奈克玛 Turbomachine rotor with means for axial retention of blades
EP2299059A3 (en) * 2009-08-28 2014-08-27 Rolls-Royce plc An aerofoil blade assembly

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4221542A (en) * 1977-12-27 1980-09-09 General Electric Company Segmented blade retainer
US4265595A (en) * 1979-01-02 1981-05-05 General Electric Company Turbomachinery blade retaining assembly
US4685863A (en) * 1979-06-27 1987-08-11 United Technologies Corporation Turbine rotor assembly
FR2502690B1 (en) * 1981-03-27 1985-09-13 Snecma DEVICE FOR LOCKING BLOWER VANES AND FOR FIXING A FRONT HOOD OF A TURBO-JET
FR2507679A1 (en) * 1981-06-12 1982-12-17 Snecma DEVICE FOR LOCKING A TURBOMACHINE ROTOR BLADE
US4453890A (en) * 1981-06-18 1984-06-12 General Electric Company Blading system for a gas turbine engine
FR2519072B1 (en) * 1981-12-29 1986-05-30 Snecma DEVICE FOR AXIAL AND RADIAL RETENTION OF A TURBO JET ROTOR BLADE
FR2535793B1 (en) * 1982-11-08 1987-04-10 Snecma AXIAL LOCKING DEVICE FOR BLOWER BLADES
FR2566061B1 (en) * 1984-06-14 1988-09-02 Snecma AXIAL LOCKING DEVICE OF A TURBOMACHINE BLADE
FR2586061B1 (en) * 1985-08-08 1989-06-09 Snecma MULTIFUNCTIONAL LABYRINTH DISC FOR TURBOMACHINE ROTOR
FR2728299B1 (en) * 1994-12-14 1997-01-24 Snecma DEVICE FOR AXIAL FIXING OF TURBO-SPINDLE ROTOR BLADES
US6457942B1 (en) * 2000-11-27 2002-10-01 General Electric Company Fan blade retainer
US6634863B1 (en) * 2000-11-27 2003-10-21 General Electric Company Circular arc multi-bore fan disk assembly
US6481971B1 (en) * 2000-11-27 2002-11-19 General Electric Company Blade spacer
FR2939832B1 (en) * 2008-12-11 2011-01-07 Turbomeca TURBINE WHEEL EQUIPPED WITH AXIAL HOLDING DEVICE LOCKING BLADES WITH RESPECT TO A DISK.
US10927683B2 (en) 2017-12-14 2021-02-23 Safran Aircraft Engines Damping device
FR3075282B1 (en) * 2017-12-14 2021-01-08 Safran Aircraft Engines SHOCK ABSORBER
FR3108665A1 (en) * 2020-03-31 2021-10-01 Safran Aircraft Engines Fan rotor with upstream center of gravity vanes
FR3139596A1 (en) * 2022-09-12 2024-03-15 Safran Aircraft Engines TURBOMACHINE ASSEMBLY
FR3139597A1 (en) * 2022-09-12 2024-03-15 Safran Aircraft Engines TURBOMACHINE ASSEMBLY

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2272027A (en) * 1992-10-28 1994-05-04 Snecma Interlocking the ends of blades
GB2272027B (en) * 1992-10-28 1996-04-10 Snecma System for interlocking the ends of blades
EP0597586A1 (en) * 1992-11-11 1994-05-18 ROLLS-ROYCE plc Gas turbine engine fan blade assembly
EP0690203A2 (en) 1994-06-28 1996-01-03 ROLLS-ROYCE plc Fixing system for the fan blade of a gas turbine engine
US5522702A (en) * 1994-06-28 1996-06-04 Rolls-Royce Plc Gas turbine engine fan blade assembly
US5913660A (en) * 1996-07-27 1999-06-22 Rolls-Royce Plc Gas turbine engine fan blade retention
EP0971096A2 (en) 1998-07-07 2000-01-12 ROLLS-ROYCE plc Attaching a rotor blade to a rotor
US6155788A (en) * 1998-07-07 2000-12-05 Rolls-Royce Plc Rotor assembly
WO2003102379A1 (en) * 2002-05-28 2003-12-11 Mtu Aero Engines Gmbh Arrangement for axially and radially fixing the guide vanes of a vane ring of a gas turbine
US7396206B2 (en) 2002-05-28 2008-07-08 Mtu Aero Engines Gmbh Arrangement for axially and radially fixing the guide vanes of a vane ring of a gas turbine
GB2436132A (en) * 2006-03-14 2007-09-19 Ishikawajima Harima Heavy Ind A fan blade having a fore portion engaged by the nosecone
GB2436132B (en) * 2006-03-14 2008-05-14 Ishikawajima Harima Heavy Ind Dovetail structure of fan
EP2299059A3 (en) * 2009-08-28 2014-08-27 Rolls-Royce plc An aerofoil blade assembly
CN103502653A (en) * 2011-05-04 2014-01-08 斯奈克玛 Turbomachine rotor with means for axial retention of blades
CN103502653B (en) * 2011-05-04 2016-10-26 斯奈克玛 Has the turbine rotor of vaned axial retention
US20120282104A1 (en) * 2011-05-06 2012-11-08 Snecma Turbine engine fan disk
US9151168B2 (en) * 2011-05-06 2015-10-06 Snecma Turbine engine fan disk

Also Published As

Publication number Publication date
FR2345605B1 (en) 1979-06-01
FR2345605A1 (en) 1977-10-21

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee