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GB1386821A - Bladed rotors including split-nut assemblies - Google Patents

Bladed rotors including split-nut assemblies

Info

Publication number
GB1386821A
GB1386821A GB762672A GB762672A GB1386821A GB 1386821 A GB1386821 A GB 1386821A GB 762672 A GB762672 A GB 762672A GB 762672 A GB762672 A GB 762672A GB 1386821 A GB1386821 A GB 1386821A
Authority
GB
United Kingdom
Prior art keywords
nut
blades
segments
aperture
groove
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
GB762672A
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 GB1386821A publication Critical patent/GB1386821A/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
    • 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
    • F01D5/3023—Fixing blades to rotors; Blade roots ; Blade spacers of radial insertion type, e.g. in individual recesses
    • F01D5/303—Fixing blades to rotors; Blade roots ; Blade spacers of radial insertion type, e.g. in individual recesses in a circumferential slot
    • F01D5/3038—Fixing blades to rotors; Blade roots ; Blade spacers of radial insertion type, e.g. in individual recesses in a circumferential slot the slot having inwardly directed abutment faces on both sides
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T50/00—Aeronautics or air transport
    • Y02T50/60—Efficient propulsion technologies, e.g. for aircraft

Landscapes

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

Abstract

1386821 Mounting axial-flow compressor rotor blades GENERAL ELECTRIC CO 18 Feb 1972 [25 May 1971] 7626/72 Heading FIT [Also in Division F2] To lock the rotor blades 24 of an axial-flow compressor in a gas turbine engine, the blades having dovetail root portions 32 engaging in a complementary groove 16 in the rotor disc 11 and being inserted in an enlarged entrance aperture 36 and slid into position along the groove, a fastener assembly 37 is provided including a split nut 38 which is shaped to fit into the groove 16 about the aperture, the nut segments 40, 40' being transversely spread apart to lock the rotor blades by the insertion of a set screw 46. If the nut 38 and the screw 46 are each formed with a double lead thread, the segments 40, 40' need not be matched and can be interchanged one with another. By peening over the end of the nut thread, the screw can be locked in position. Indentations in the edges 56, 56' of the blades adjacent the aperture 36 minimizes the space between blades taken up by the locking assembly 37. In an alternative embodiment Fig. 5 (not shown) the nut is split into two segments in an axial plane at right angles to that of the nut shown in Fig. 2.
GB762672A 1971-05-25 1972-02-18 Bladed rotors including split-nut assemblies Expired GB1386821A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US14673271A 1971-05-25 1971-05-25

Publications (1)

Publication Number Publication Date
GB1386821A true GB1386821A (en) 1975-03-12

Family

ID=22518755

Family Applications (1)

Application Number Title Priority Date Filing Date
GB762672A Expired GB1386821A (en) 1971-05-25 1972-02-18 Bladed rotors including split-nut assemblies

Country Status (9)

Country Link
US (1) US3721506A (en)
BE (1) BE779225A (en)
CA (1) CA952820A (en)
CH (1) CH565319A5 (en)
DE (1) DE2207561A1 (en)
FR (1) FR2138612B1 (en)
GB (1) GB1386821A (en)
NL (1) NL7201197A (en)
SE (1) SE379402B (en)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3902824A (en) * 1974-07-29 1975-09-02 Gen Motors Corp Blade lock
CA1114301A (en) * 1979-06-27 1981-12-15 Ivor J. Roberts Locking device for blade mounting
US4859149A (en) * 1989-03-10 1989-08-22 General Motors Corporation Blade locking system
DE19826897A1 (en) * 1998-06-17 1999-12-23 Abb Patent Gmbh Lock for blades of a turbine runner
US6499959B1 (en) * 2000-08-15 2002-12-31 General Electric Company Steam turbine high strength tangential entry closure bucket and retrofitting methods therefor
DE10134611A1 (en) * 2000-12-16 2002-06-27 Alstom Switzerland Ltd Fixing device for a blade mounting of a compressor or turbine stage of a gas turbine system comprises a blade having a counter-contour corresponding to a connecting element of a wedge element to produce a form-locking connection
GB0102757D0 (en) * 2001-02-03 2001-03-21 Rolls Royce Plc Locking device
US7435055B2 (en) * 2005-03-29 2008-10-14 Siemens Power Generation, Inc. Locking spacer assembly for a turbine engine
EP1801355B1 (en) * 2005-12-23 2015-02-11 Techspace Aero Device for locking the blades of a turbomachine disk
EP1803900A1 (en) * 2006-01-02 2007-07-04 Siemens Aktiengesellschaft Closure unit for the remaining space between the first and the last blades of a bladed ring inserted in a circumferencial slot of a turbomachine, and corresponding turbomachine
EP1803899A1 (en) * 2006-01-02 2007-07-04 Siemens Aktiengesellschaft Blade locking assembly for a turbomachine
US7901187B2 (en) * 2006-06-23 2011-03-08 Siemens Energy, Inc. Turbine rotor blade groove entry slot lock structure
US20110255978A1 (en) * 2010-04-16 2011-10-20 Brian Denver Potter Locking Assembly For Circumferential Attachments
US8714929B2 (en) * 2010-11-10 2014-05-06 General Electric Company Turbine assembly and method for securing a closure bucket
US8894372B2 (en) * 2011-12-21 2014-11-25 General Electric Company Turbine rotor insert and related method of installation
US8899933B2 (en) * 2012-01-03 2014-12-02 General Electric Company Rotor blade mounting
US9175572B2 (en) * 2012-04-16 2015-11-03 General Electric Company Turbomachine blade mounting system
US20140286782A1 (en) * 2012-08-07 2014-09-25 Solar Turbines Incorporated Turbine blade staking pin
US9512732B2 (en) * 2013-10-16 2016-12-06 General Electric Company Locking spacer assembly inserted between rotor blades
EP2933436A1 (en) * 2014-04-15 2015-10-21 Siemens Aktiengesellschaft Wheel disc with at least one sealing sheet metal panel
US9903408B2 (en) * 2016-07-28 2018-02-27 Tsun-Chi Liao Fast-dismounted cymbal-locking nut
US10024164B2 (en) * 2016-09-27 2018-07-17 General Electric Company Fixture for restraining a turbine wheel
US10100677B2 (en) * 2016-09-27 2018-10-16 General Electric Company Fixture for restraining a turbine wheel
DE102016219837A1 (en) * 2016-10-12 2018-04-12 Siemens Aktiengesellschaft Rotor and method of assembling blades using narrower blade platforms
WO2019203819A1 (en) * 2018-04-18 2019-10-24 Siemens Aktiengesellschaft Locking spacer assembly, corresponding blade assembly, method for installing a locking spacer
FR3081501B1 (en) * 2018-05-23 2020-09-18 Safran Aircraft Engines SHUTTER FOR TURBOREACTOR WITH ABSENT RECTIFIER VANE
DE102021201814A1 (en) 2021-02-25 2022-08-25 SFT Produktions GMBH DEVICE, IN PARTICULAR TENSIONING ELEMENT AND METHOD OF APPLICATION OF THIS TENSIONING ELEMENT

Also Published As

Publication number Publication date
NL7201197A (en) 1972-11-28
BE779225A (en) 1972-05-30
FR2138612A1 (en) 1973-01-05
CA952820A (en) 1974-08-13
US3721506A (en) 1973-03-20
CH565319A5 (en) 1975-08-15
DE2207561A1 (en) 1972-12-07
FR2138612B1 (en) 1973-07-13
SE379402B (en) 1975-10-06
AU3763272A (en) 1973-07-12

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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