GB1369513A - Blade constraining structure in fluid-handling apparatus - Google Patents

Blade constraining structure in fluid-handling apparatus

Info

Publication number
GB1369513A
GB1369513A GB104272A GB104272A GB1369513A GB 1369513 A GB1369513 A GB 1369513A GB 104272 A GB104272 A GB 104272A GB 104272 A GB104272 A GB 104272A GB 1369513 A GB1369513 A GB 1369513A
Authority
GB
United Kingdom
Prior art keywords
prevented
rotor
ring
flange
wedge ring
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
GB104272A
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of GB1369513A publication Critical patent/GB1369513A/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
    • F01D5/02—Blade-carrying members, e.g. rotors
    • F01D5/06—Rotors for more than one axial stage, e.g. of drum or multiple disc type; Details thereof, e.g. shafts, shaft connections
    • 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
    • F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
    • F01D11/005—Sealing means between non relatively rotating elements
    • F01D11/006—Sealing the gap between rotor blades or blades and rotor
    • 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
    • F01D5/12—Blades
    • F01D5/22—Blade-to-blade connections, e.g. for damping vibrations
    • 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
    • F01D5/12—Blades
    • F01D5/22—Blade-to-blade connections, e.g. for damping vibrations
    • F01D5/24—Blade-to-blade connections, e.g. for damping vibrations using wire or the like
    • 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)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

1369513 Turbomachine blade fixing GENERAL ELECTRIC CO 10 Jan 1972 [19 April 1971] 1042/72 Heading FIT The roots 26 of rotor blades 24 in a fluidflow machine, e.g. a compressor, are prevented from sliding rearwardly out of mounting slots 16 by a resilient wedge ring 30 having an inclined surface 36 abutting a corresponding surface 34 on rotor flange 32 such that centrifugal radial growth causes wedge ring 30 to be urged axially into engagement with end faces 39 of roots 26. The latter are prevented from moving forwardly out of slots 16 by a locking ring 44 retained by projections 40 on the face 13 of rotor disc 12. Flange 32 is formed on a second rotor disc 14 which also has a radially inner flange 31 engaging disc 12 via splines 51, 52. Leakage between the splines is prevented by a resilient plastic ring 53. Wedge ring 30 is also of plastic, e.g. polyimide.
GB104272A 1971-04-19 1972-01-10 Blade constraining structure in fluid-handling apparatus Expired GB1369513A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US13531071A 1971-04-19 1971-04-19

Publications (1)

Publication Number Publication Date
GB1369513A true GB1369513A (en) 1974-10-09

Family

ID=22467508

Family Applications (1)

Application Number Title Priority Date Filing Date
GB104272A Expired GB1369513A (en) 1971-04-19 1972-01-10 Blade constraining structure in fluid-handling apparatus

Country Status (7)

Country Link
US (1) US3689177A (en)
BE (1) BE778125A (en)
CA (1) CA941746A (en)
DE (1) DE2201383A1 (en)
FR (1) FR2135943A5 (en)
GB (1) GB1369513A (en)
IT (1) IT946577B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170114650A1 (en) * 2015-10-26 2017-04-27 Rolls-Royce Corporation System and method to retain a turbine cover plate with a spanner nut

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4047840A (en) * 1975-05-29 1977-09-13 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Impact absorbing blade mounts for variable pitch blades
US4021138A (en) * 1975-11-03 1977-05-03 Westinghouse Electric Corporation Rotor disk, blade, and seal plate assembly for cooled turbine rotor blades
DE2620762C2 (en) * 1976-05-11 1977-11-17 Motoren- und Turbinen-Union München GmbH, 8000 München Gap seal for turbo machines, in particular gas turbine jet engines
US4221542A (en) * 1977-12-27 1980-09-09 General Electric Company Segmented blade retainer
US4344740A (en) * 1979-09-28 1982-08-17 United Technologies Corporation Rotor assembly
FR2523208A1 (en) * 1982-03-12 1983-09-16 Snecma DEVICE FOR DAMPING MOBILE TURBINE BLADE VIBRATIONS
US4480957A (en) * 1983-04-14 1984-11-06 General Electric Company Dynamic response modification and stress reduction in dovetail and blade assembly
US4523890A (en) * 1983-10-19 1985-06-18 General Motors Corporation End seal for turbine blade base
US4743166A (en) * 1984-12-20 1988-05-10 General Electric Company Blade root seal
US4737076A (en) * 1986-10-20 1988-04-12 United Technologies Corporation Means for maintaining concentricity of rotating components
US4872812A (en) * 1987-08-05 1989-10-10 General Electric Company Turbine blade plateform sealing and vibration damping apparatus
US4836750A (en) * 1988-06-15 1989-06-06 Pratt & Whitney Canada Inc. Rotor assembly
US5478207A (en) * 1994-09-19 1995-12-26 General Electric Company Stable blade vibration damper for gas turbine engine
US6250883B1 (en) 1999-04-13 2001-06-26 Alliedsignal Inc. Integral ceramic blisk assembly
US7153102B2 (en) * 2004-05-14 2006-12-26 Pratt & Whitney Canada Corp. Bladed disk fixing undercut
US7510380B2 (en) * 2004-07-13 2009-03-31 Honeywell International Inc. Non-parallel spacer for improved rotor group balance
JP4591047B2 (en) * 2004-11-12 2010-12-01 株式会社日立製作所 Turbine rotor and gas turbine
GB2422176A (en) * 2005-01-18 2006-07-19 Rolls Royce Plc Retaining components/blades on a rotor
DE102008008887A1 (en) * 2008-02-13 2009-08-27 Man Turbo Ag Multi-piece bladed rotor for a turbomachine
FR2931871B1 (en) * 2008-05-29 2011-08-19 Snecma BLOWER ROTOR FOR A TURBOMACHINE.
FR2960021B1 (en) * 2010-05-12 2014-04-25 Snecma TURBOMACHINE MOBILE WHEEL HAVING A VIBRATION DAMPING ROUND
US9476310B2 (en) * 2012-10-18 2016-10-25 General Electric Company Systems and methods to axially retain blades
US20160186592A1 (en) * 2014-12-31 2016-06-30 General Electric Company Flowpath boundary and rotor assemblies in gas turbines
US10233763B2 (en) * 2015-09-09 2019-03-19 United Technologies Corporation Seal assembly for turbine engine component
GB201612288D0 (en) * 2016-07-15 2016-08-31 Rolls-Royce Ltd A rotor assembly for a turbomachine and a method of manufacturing the same
US10975714B2 (en) * 2018-11-22 2021-04-13 Pratt & Whitney Canada Corp. Rotor assembly with blade sealing tab
GB202001689D0 (en) * 2020-02-07 2020-03-25 Rolls Royce Plc Rotor assembly

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2356605A (en) * 1940-01-08 1944-08-22 Meininghaus Ulrich Turbine rotor
GB612097A (en) * 1946-10-09 1948-11-08 English Electric Co Ltd Improvements in and relating to the cooling of gas turbine rotors
CH284188A (en) * 1948-10-01 1952-07-15 Maschf Augsburg Nuernberg Ag Steel rotor with ceramic blades for turbines.
DE950100C (en) * 1955-04-10 1956-10-04 Maschf Augsburg Nuernberg Ag Composite drum rotor for centrifugal machines, especially for gas turbines with an axial flow direction
US3356339A (en) * 1966-12-12 1967-12-05 Gen Motors Corp Turbine rotor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170114650A1 (en) * 2015-10-26 2017-04-27 Rolls-Royce Corporation System and method to retain a turbine cover plate with a spanner nut
US10718220B2 (en) * 2015-10-26 2020-07-21 Rolls-Royce Corporation System and method to retain a turbine cover plate with a spanner nut

Also Published As

Publication number Publication date
FR2135943A5 (en) 1972-12-22
BE778125A (en) 1972-05-16
IT946577B (en) 1973-05-21
CA941746A (en) 1974-02-12
US3689177A (en) 1972-09-05
DE2201383A1 (en) 1972-10-26

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee