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GB1506047A - Gas turbine having axial sealing of a turbine wheel - Google Patents

Gas turbine having axial sealing of a turbine wheel

Info

Publication number
GB1506047A
GB1506047A GB22405/75A GB2240575A GB1506047A GB 1506047 A GB1506047 A GB 1506047A GB 22405/75 A GB22405/75 A GB 22405/75A GB 2240575 A GB2240575 A GB 2240575A GB 1506047 A GB1506047 A GB 1506047A
Authority
GB
United Kingdom
Prior art keywords
plates
disc
seal
engages
inclined surfaces
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
GB22405/75A
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.)
RTX Corp
Original Assignee
United Technologies Corp
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 United Technologies Corp filed Critical United Technologies Corp
Publication of GB1506047A publication Critical patent/GB1506047A/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
    • F01D5/12—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
    • 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
    • F01D5/30—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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S416/00—Fluid reaction surfaces, i.e. impellers
    • Y10S416/50—Vibration damping features

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

1506047 Gas turbines UNITED TECHNOLOGIES CORP 22 May 1975 [30 May 1974] 22405/75 Heading FIT A gas turbine disc 12 has seal plates 32 on its low-pressure side 50 with support sections 38 with inclined surfaces 40 extending between neck extensions 24 of adjacent blades 20, and each of which engages the sloped surface 42 of a vibration damper 36 which engages the under surfaces 30 of the platforms 22 of adjacent blades under the action of centrifugal force, which force, via engaging inclined surfaces 40, 42, also draws each seal plate 32 into contact with its associated neck extensions 24 and disc 12 to seal the disc from hot gases, the blade roots 18 being covered by side plates 46, 52. Surface 40 may either engage surface 42 directly or be formed with a protrusion which engages surface 42. End-plates 34 integral with dampers 36 form seals on the high-pressure side of disc 12, plates 32 and 34 being trapped by circumferential offsets 48, 54 of plates 46, 52. Another emodiment, Fig. 5 (not shown), incorporates seal plates 32 on both sides of the disc, vibration dampers being interposed between and each having a pair of sloped surfaces for engagement with inclined surfaces on the support sections of the seal plates.
GB22405/75A 1974-05-30 1975-05-22 Gas turbine having axial sealing of a turbine wheel Expired GB1506047A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US474756A US3887298A (en) 1974-05-30 1974-05-30 Apparatus for sealing turbine blade damper cavities

Publications (1)

Publication Number Publication Date
GB1506047A true GB1506047A (en) 1978-04-05

Family

ID=23884811

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22405/75A Expired GB1506047A (en) 1974-05-30 1975-05-22 Gas turbine having axial sealing of a turbine wheel

Country Status (8)

Country Link
US (1) US3887298A (en)
JP (1) JPS5113012A (en)
BR (1) BR7503391A (en)
CA (1) CA1013676A (en)
FR (1) FR2273163A1 (en)
GB (1) GB1506047A (en)
IL (1) IL47321A (en)
SE (1) SE7505935L (en)

Families Citing this family (51)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3957393A (en) * 1974-10-29 1976-05-18 United Technologies Corporation Turbine disk and sideplate construction
GB1512882A (en) * 1976-02-11 1978-06-01 Rolls Royce Bladed rotor assembly for a gas turbine engine
US4088421A (en) * 1976-09-30 1978-05-09 General Electric Company Coverplate damping arrangement
US4101245A (en) * 1976-12-27 1978-07-18 United Technologies Corporation Interblade damper and seal for turbomachinery rotor
GB2043796B (en) * 1979-03-10 1983-04-20 Rolls Royce Bladed rotor for gas turbine engine
FR2523208A1 (en) * 1982-03-12 1983-09-16 Snecma DEVICE FOR DAMPING MOBILE TURBINE BLADE VIBRATIONS
US4473337A (en) * 1982-03-12 1984-09-25 United Technologies Corporation Blade damper seal
US4480957A (en) * 1983-04-14 1984-11-06 General Electric Company Dynamic response modification and stress reduction in dovetail and blade assembly
US4568247A (en) * 1984-03-29 1986-02-04 United Technologies Corporation Balanced blade vibration damper
US4659285A (en) * 1984-07-23 1987-04-21 United Technologies Corporation Turbine cover-seal assembly
FR2585069B1 (en) * 1985-07-16 1989-06-09 Snecma DEVICE FOR LIMITING THE ANGULAR DEFLECTION OF BLADES MOUNTED ON A TURBOMACHINE ROTOR DISC
FR2586061B1 (en) * 1985-08-08 1989-06-09 Snecma MULTIFUNCTIONAL LABYRINTH DISC FOR TURBOMACHINE ROTOR
US4743164A (en) * 1986-12-29 1988-05-10 United Technologies Corporation Interblade seal for turbomachine rotor
US4872810A (en) * 1988-12-14 1989-10-10 United Technologies Corporation Turbine rotor retention system
GB2228541B (en) * 1989-02-23 1993-04-14 Rolls Royce Plc Device for damping vibrations in turbomachinery blades
US5201849A (en) * 1990-12-10 1993-04-13 General Electric Company Turbine rotor seal body
US5226784A (en) * 1991-02-11 1993-07-13 General Electric Company Blade damper
US5339619A (en) * 1992-08-31 1994-08-23 United Technologies Corporation Active cooling of turbine rotor assembly
US5281097A (en) * 1992-11-20 1994-01-25 General Electric Company Thermal control damper for turbine rotors
US5284421A (en) * 1992-11-24 1994-02-08 United Technologies Corporation Rotor blade with platform support and damper positioning means
US5228835A (en) * 1992-11-24 1993-07-20 United Technologies Corporation Gas turbine blade seal
US5313786A (en) * 1992-11-24 1994-05-24 United Technologies Corporation Gas turbine blade damper
US5388962A (en) * 1993-10-15 1995-02-14 General Electric Company Turbine rotor disk post cooling system
FR2726323B1 (en) * 1994-10-26 1996-12-13 Snecma ASSEMBLY OF A ROTARY DISC AND BLADES, ESPECIALLY USED IN A TURBOMACHINE
US5513955A (en) * 1994-12-14 1996-05-07 United Technologies Corporation Turbine engine rotor blade platform seal
US5573375A (en) * 1994-12-14 1996-11-12 United Technologies Corporation Turbine engine rotor blade platform sealing and vibration damping device
US5827047A (en) * 1996-06-27 1998-10-27 United Technologies Corporation Turbine blade damper and seal
US5924699A (en) * 1996-12-24 1999-07-20 United Technologies Corporation Turbine blade platform seal
US5785499A (en) * 1996-12-24 1998-07-28 United Technologies Corporation Turbine blade damper and seal
US6139277A (en) * 1998-12-22 2000-10-31 Air Concepts, Inc. Motorized fan
US6273683B1 (en) 1999-02-05 2001-08-14 Siemens Westinghouse Power Corporation Turbine blade platform seal
US6932575B2 (en) * 2003-10-08 2005-08-23 United Technologies Corporation Blade damper
US7484936B2 (en) * 2005-09-26 2009-02-03 Pratt & Whitney Canada Corp. Blades for a gas turbine engine with integrated sealing plate and method
US7762780B2 (en) * 2007-01-25 2010-07-27 Siemens Energy, Inc. Blade assembly in a combustion turbo-machine providing reduced concentration of mechanical stress and a seal between adjacent assemblies
US8128371B2 (en) 2007-02-15 2012-03-06 General Electric Company Method and apparatus to facilitate increasing turbine rotor efficiency
FR2923557B1 (en) * 2007-11-12 2010-01-22 Snecma BLOWER DRAWER ASSEMBLY AND ITS SHOCK ABSORBER, BLOWER DAMPER AND METHOD FOR CALIBRATING THE SHOCK ABSORBER
US20110262277A1 (en) * 2008-12-18 2011-10-27 Volvo Aero Corporation Gas turbine composite workpiece to be used in gas turbine engine
DE102009011879A1 (en) * 2009-03-05 2010-09-16 Mtu Aero Engines Gmbh Integrally bladed rotor and method of making an integrally bladed rotor
GB2491121B (en) * 2011-05-23 2014-10-01 Rolls Royce Plc Balancing of rotatable components
US10287897B2 (en) * 2011-09-08 2019-05-14 General Electric Company Turbine rotor blade assembly and method of assembling same
US9366142B2 (en) * 2011-10-28 2016-06-14 General Electric Company Thermal plug for turbine bucket shank cavity and related method
US9279332B2 (en) * 2012-05-31 2016-03-08 Solar Turbines Incorporated Turbine damper
US9650901B2 (en) * 2012-05-31 2017-05-16 Solar Turbines Incorporated Turbine damper
JP6431839B2 (en) 2012-06-30 2018-11-28 ゼネラル・エレクトリック・カンパニイ Turbine blade sealing structure
CN105518255B (en) 2013-09-11 2018-06-08 通用电气公司 For the integrated form platform and the synusia framework of damper holding structure in CMC turbo blades
EP2848770B1 (en) * 2013-09-17 2017-03-29 MTU Aero Engines GmbH Impeller blade of an axial turbo-machine and damping element
EP2873807A1 (en) * 2013-11-18 2015-05-20 Siemens Aktiengesellschaft Cover plate, rotor blade, wheel disc, bolt and gas turbine
CN108474260B (en) * 2016-01-12 2020-11-10 西门子股份公司 Flexible damper for turbine buckets
EP3239461B1 (en) * 2016-04-27 2021-09-08 MTU Aero Engines AG Turbo machine blade assembly
US10941671B2 (en) * 2017-03-23 2021-03-09 General Electric Company Gas turbine engine component incorporating a seal slot
CN111448365B (en) * 2017-12-12 2023-02-28 赛峰直升机发动机公司 Vibration damper for a turbine rotor blade

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB779059A (en) * 1954-07-15 1957-07-17 Rolls Royce Improvements in or relating to axial-flow fluid machines, for example compressors orturbines of gas-turbine engines
GB802476A (en) * 1955-09-29 1958-10-08 Rolls Royce Improvements in or relating to rotors of axial-flow fluid machines for example compressors and turbines
US3112915A (en) * 1961-12-22 1963-12-03 Gen Electric Rotor assembly air baffle
US3181835A (en) * 1964-01-07 1965-05-04 Carroll C Davis Blade vibration damping device
CH494896A (en) * 1968-08-09 1970-08-15 Sulzer Ag Mounting of rotor blades in the rotor of a turbomachine
BE791375A (en) * 1971-12-02 1973-03-01 Gen Electric DEFLECTOR AND SHOCK ABSORBER FOR TURBOMACHINE FINS

Also Published As

Publication number Publication date
BR7503391A (en) 1976-04-27
IL47321A (en) 1977-07-31
CA1013676A (en) 1977-07-12
US3887298A (en) 1975-06-03
SE7505935L (en) 1975-12-01
JPS5113012A (en) 1976-02-02
FR2273163A1 (en) 1975-12-26
IL47321A0 (en) 1975-07-28

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Legal Events

Date Code Title Description
CSNS Application of which complete specification have been accepted and published, but patent is not sealed