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GB805319A - Improvements relating to turbine wheels - Google Patents

Improvements relating to turbine wheels

Info

Publication number
GB805319A
GB805319A GB8089/57A GB808957A GB805319A GB 805319 A GB805319 A GB 805319A GB 8089/57 A GB8089/57 A GB 8089/57A GB 808957 A GB808957 A GB 808957A GB 805319 A GB805319 A GB 805319A
Authority
GB
United Kingdom
Prior art keywords
key
blades
blade
slots
rotor disc
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
GB8089/57A
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.)
Motors Liquidation Co
Original Assignee
General Motors 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 General Motors Corp filed Critical General Motors Corp
Publication of GB805319A publication Critical patent/GB805319A/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
    • 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

Landscapes

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

Abstract

805,319. Bladed turbine rotors. GENERAL MOTORS CORPORATION. March 12, 1957 [June 13, 1956], No. 8089/57. Class 110 (3). [Also in Group XXV] In a bladed turbine rotor disc, blades 12 each comprising an aerofoil portion 13 and a platform 15 are mounted by their roots 14 in undercut axial slots formed in the periphery of the disc, and the blades are prevented from endwise movement in the slots by means of axiallydirected keys 20 each of which lies in a groove 24 in the disc periphery between two adjacent blade-mounting slots. Each key, which underlies the platforms 15 of the blades mounted in these slots, is interlocked with at least one of the blades by a lug and notch device, and each key has heads to secure the key against axial movement in its groove, at least one of the heads being formed by bending over an originally straight part of the key. The key 20 is sectorshaped in cross-section, is tapered along its length, has a head portion 26 at the thicker end and has a lug 31 formed on one of its upper faces 22. The blade platforms 15 have lower faces which are inclined upwardly and correspond with the inclined upper surfaces 21, 22 of the key 20, and each platform is formed at one side with a notch 32 in which the lug 31 of a key 20 is engaged. The blade and key are engaged together on to the rotor disc, the thin end 27 of the key being subsequently bent downwardly to engage the face 18 of the rotor disc whereby the key and blade are locked against endwise movement with respect to the rotor disc.
GB8089/57A 1956-06-13 1957-03-12 Improvements relating to turbine wheels Expired GB805319A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US591231A US2942842A (en) 1956-06-13 1956-06-13 Turbine blade lock

Publications (1)

Publication Number Publication Date
GB805319A true GB805319A (en) 1958-12-03

Family

ID=24365633

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8089/57A Expired GB805319A (en) 1956-06-13 1957-03-12 Improvements relating to turbine wheels

Country Status (2)

Country Link
US (1) US2942842A (en)
GB (1) GB805319A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8784062B2 (en) 2011-10-28 2014-07-22 United Technologies Corporation Asymmetrically slotted rotor for a gas turbine engine
US8944762B2 (en) 2011-10-28 2015-02-03 United Technologies Corporation Spoked spacer for a gas turbine engine

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3112915A (en) * 1961-12-22 1963-12-03 Gen Electric Rotor assembly air baffle
US3202398A (en) * 1962-11-05 1965-08-24 James E Webb Locking device for turbine rotor blades
US3248081A (en) * 1964-12-29 1966-04-26 Gen Electric Axial locating means for airfoils
CH494896A (en) * 1968-08-09 1970-08-15 Sulzer Ag Mounting of rotor blades in the rotor of a turbomachine
JPS4975904A (en) * 1972-11-10 1974-07-22 Hitachi Ltd
US4029436A (en) * 1975-06-17 1977-06-14 United Technologies Corporation Blade root feather seal
US4444544A (en) * 1980-12-19 1984-04-24 United Technologies Corporation Locking of rotor blades on a rotor disk
US4676723A (en) * 1986-03-26 1987-06-30 Westinghouse Electric Corp. Locking system for a turbine side entry blade
US4915587A (en) * 1988-10-24 1990-04-10 Westinghouse Electric Corp. Apparatus for locking side entry blades into a rotor
US5236309A (en) * 1991-04-29 1993-08-17 Westinghouse Electric Corp. Turbine blade assembly
US5518369A (en) * 1994-12-15 1996-05-21 Pratt & Whitney Canada Inc. Gas turbine blade retention
US5720596A (en) * 1997-01-03 1998-02-24 Westinghouse Electric Corporation Apparatus and method for locking blades into a rotor
US6109877A (en) * 1998-11-23 2000-08-29 Pratt & Whitney Canada Corp. Turbine blade-to-disk retention device
DE10012381A1 (en) * 2000-03-14 2001-09-20 Man Turbomasch Ag Ghh Borsig Bucket lock and method for manufacturing a paddle lock
US6929453B2 (en) * 2003-12-11 2005-08-16 Siemens Westinghouse Power Corporation Locking spacer assembly for slotted turbine component
EP1643082A1 (en) * 2004-09-30 2006-04-05 Siemens Aktiengesellschaft Turbine blade retention system
EP1892380A1 (en) * 2006-08-25 2008-02-27 Siemens Aktiengesellschaft Turbine blade retention system
US8485785B2 (en) * 2007-07-19 2013-07-16 Siemens Energy, Inc. Wear prevention spring for turbine blade
US8439635B2 (en) * 2009-05-11 2013-05-14 Rolls-Royce Corporation Apparatus and method for locking a composite component
US8496443B2 (en) * 2009-12-15 2013-07-30 Siemens Energy, Inc. Modular turbine airfoil and platform assembly with independent root teeth
US8231354B2 (en) * 2009-12-15 2012-07-31 Siemens Energy, Inc. Turbine engine airfoil and platform assembly
EP2711504A1 (en) * 2012-09-19 2014-03-26 Siemens Aktiengesellschaft Device for bridging a gap
EP2808490A1 (en) * 2013-05-29 2014-12-03 Alstom Technology Ltd Turbine blade with locking pin
DE102013214933A1 (en) * 2013-07-30 2015-02-26 MTU Aero Engines AG Method for mounting a gas turbine blade in an associated receptacle of a rotor base body
US10215035B2 (en) * 2014-12-29 2019-02-26 Rolls-Royce North American Technologies Inc. Turbine wheels with preloaded blade attachment
GB201504186D0 (en) * 2015-03-12 2015-04-29 Rolls Royce Plc Chocking and retaining device
US11092018B2 (en) * 2015-08-07 2021-08-17 Transportation Ip Holdings, Llc Underplatform damping members and methods for turbocharger assemblies
US10465537B2 (en) * 2016-05-27 2019-11-05 General Electric Company Margin bucket dovetail radial support feature for axial entry buckets
US9682756B1 (en) * 2016-10-17 2017-06-20 General Electric Company System for composite marine propellers
KR102176954B1 (en) * 2017-09-14 2020-11-10 두산중공업 주식회사 Compressor rotor disk for gas turbine
GB2573520A (en) * 2018-05-08 2019-11-13 Rolls Royce Plc A damper
US11555407B2 (en) 2020-05-19 2023-01-17 General Electric Company Turbomachine rotor assembly

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2483610A (en) * 1943-03-23 1949-10-04 Mini Of Supply Bladed impeller for turboblowers
GB652099A (en) * 1947-10-16 1951-04-18 Rolls Royce Improvements relating to axial flow turbines
GB671960A (en) * 1949-08-23 1952-05-14 Bristol Aeroplane Co Ltd Improvements in or relating to attachment means for rotor blades

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8784062B2 (en) 2011-10-28 2014-07-22 United Technologies Corporation Asymmetrically slotted rotor for a gas turbine engine
US8944762B2 (en) 2011-10-28 2015-02-03 United Technologies Corporation Spoked spacer for a gas turbine engine
US9790792B2 (en) 2011-10-28 2017-10-17 United Technologies Corporation Asymmetrically slotted rotor for a gas turbine engine

Also Published As

Publication number Publication date
US2942842A (en) 1960-06-28

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