GB1331711A - Turbomachine rotor blade retaining means - Google Patents

Turbomachine rotor blade retaining means

Info

Publication number
GB1331711A
GB1331711A GB2075271A GB2075271A GB1331711A GB 1331711 A GB1331711 A GB 1331711A GB 2075271 A GB2075271 A GB 2075271A GB 2075271 A GB2075271 A GB 2075271A GB 1331711 A GB1331711 A GB 1331711A
Authority
GB
United Kingdom
Prior art keywords
groove
recess
roots
projection
base
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
GB2075271A
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 GB1331711A publication Critical patent/GB1331711A/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

Abstract

1331711 Turbomachine blade fixing GENERAL ELECTRIC CO 19 April 1971 [2 Feb 1970] 20752/71 Heading FIT Blades 14 are mounted in a peripheral groove 12 in a turbomachine rotor 10, e.g. for the compressor of a gas turbine engine, and retained against circumferential movement by a leaf spring 40 located in a recess 36 in the base of groove 12 and having a projection 46 extending into the gap between adjacent blade roots 22. Projection 46 is aligned with a filling aperture 38 through which roots 22 are inserted radially into groove 12. The ends of leaf spring 40 bear on the base of recess 36 via pads 44. At disassembly projection 46 can be disengaged from roots 22 by inserting a punch through a hole 52 defined between adjacent blade platforms 20. Stress relieving grooves 48 are provided in the base of groove 12 adjacent the ends of recess 36.
GB2075271A 1970-02-02 1971-04-19 Turbomachine rotor blade retaining means Expired GB1331711A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US757970A 1970-02-02 1970-02-02

Publications (1)

Publication Number Publication Date
GB1331711A true GB1331711A (en) 1973-09-26

Family

ID=21726999

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2075271A Expired GB1331711A (en) 1970-02-02 1971-04-19 Turbomachine rotor blade retaining means

Country Status (5)

Country Link
US (1) US3597112A (en)
BE (1) BE762044A (en)
DE (1) DE2104511A1 (en)
FR (1) FR2078097A5 (en)
GB (1) GB1331711A (en)

Families Citing this family (12)

* 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
GB2112465B (en) * 1981-12-30 1985-04-11 Rolls Royce Turbomachine rotor
FR2616480B1 (en) * 1987-06-10 1989-09-29 Snecma DEVICE FOR LOCKING BLADES WITH A HAMMER FOOT ON A TURBOMACHINE DISC AND ASSEMBLY AND DISASSEMBLY METHODS
GB2258273B (en) * 1991-08-02 1994-08-10 Ruston Gas Turbines Ltd Rotor blade locking arrangement
FR2758364B1 (en) * 1997-01-16 1999-02-12 Snecma TRIPOD BLADE BLADE DISC
DE19963346A1 (en) * 1999-12-27 2001-07-05 Abb Alstom Power Ch Ag Blade assembly in a turbo-engine and method for fitting blades on a rotor fits blades on a rotor crosswise to their operating orientation with a butt end in a perimeter recess for twisting them into their operating orientation.
US6739837B2 (en) 2002-04-16 2004-05-25 United Technologies Corporation Bladed rotor with a tiered blade to hub interface
GB0216951D0 (en) * 2002-07-20 2002-08-28 Rolls Royce Plc A fan blade assembly
US6837686B2 (en) * 2002-09-27 2005-01-04 Pratt & Whitney Canada Corp. Blade retention scheme using a retention tab
DE10351092B4 (en) * 2003-10-31 2013-11-21 MTU Aero Engines AG Turbomachine and bladed rotor for a compressor stage of a turbomachine
FR2997722B1 (en) * 2012-11-06 2015-01-23 Snecma CIRCUMFERENTIAL BLOCKING DEVICE OF BLADE HAMMER FOR TURBOMACHINE, COMPRISING A WIRED SHAPE ACTUATION PART

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1085643B (en) * 1959-04-13 1960-07-21 Ehrhardt & Sehmer Ag Maschf Blade attachment in axial flow machines
GB903176A (en) * 1960-01-18 1962-08-15 Rolls Royce Method of mounting a multi-blade set on a support member, for example to form a gas turbine compressor rotor
US3252687A (en) * 1965-02-01 1966-05-24 Gen Motors Corp Rotor blade locking
US3383094A (en) * 1967-01-19 1968-05-14 Gen Electric Rotor blade locking means

Also Published As

Publication number Publication date
DE2104511A1 (en) 1971-08-12
US3597112A (en) 1971-08-03
FR2078097A5 (en) 1971-11-05
BE762044A (en) 1971-07-01

Similar Documents

Publication Publication Date Title
GB1148590A (en) Improvements in stator vane assembly having composite sectors
SE8107451L (en) LOADING OF ROTOR BLADES
GB1040825A (en) Improvements in rotor blades and/or stator blades for gas turbine engines
GB1512882A (en) Bladed rotor assembly for a gas turbine engine
GB1331711A (en) Turbomachine rotor blade retaining means
GB1410607A (en) Turbomachinery rotors
GB1460714A (en) Bladed rotor for a gas turbine engine
GB1287223A (en) Improvements in or relating to turbine blading
US2640679A (en) Turbine or compressor stator ring
GB1274547A (en) Rotors for turbo-machines
GB1482308A (en) Turbine rotating blade
GB1501289A (en) Compressor stator having a housing in one piece
GB802476A (en) Improvements in or relating to rotors of axial-flow fluid machines for example compressors and turbines
GB996729A (en) Improvements relating to turbines and compressors
GB903176A (en) Method of mounting a multi-blade set on a support member, for example to form a gas turbine compressor rotor
GB822067A (en) Blades and blade mounting assemblies for turbines and axial flow compressors
GB905582A (en) Improvements relating to the sealing of blades in a bladed rotor
GB1270203A (en) Improvements in turbo machines
GB1219994A (en) Turbine for a compressible medium
GB1326122A (en) Blade securing arrangement for compressors and or turbines
GB1187227A (en) Improvements in Bladed Rotors for Axial Flow Compressors, Turbines and the like
US3508844A (en) Blade lock
GB933047A (en) Improvements in rotor assembly for gas turbine engines
GB1492286A (en) Means of locking parts mounted on the rotor of a turbomachine
GB345359A (en) Improvements in the mounting of blades in steam or gas turbines

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees