GB1270203A - Improvements in turbo machines - Google Patents

Improvements in turbo machines

Info

Publication number
GB1270203A
GB1270203A GB03233/70A GB1323370A GB1270203A GB 1270203 A GB1270203 A GB 1270203A GB 03233/70 A GB03233/70 A GB 03233/70A GB 1323370 A GB1323370 A GB 1323370A GB 1270203 A GB1270203 A GB 1270203A
Authority
GB
United Kingdom
Prior art keywords
segments
segment
tenons
shroud
blade
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
GB03233/70A
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 GB1270203A publication Critical patent/GB1270203A/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
    • F01D5/225—Blade-to-blade connections, e.g. for damping vibrations by shrouding

Landscapes

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

Abstract

1,270,203. Turbomachine blade shrouding. GENERAL ELECTRIC CO. March 19, 1970 [April 11, 1969], No.13233/70. Heading F1T. The rotor blades 2 of a turbomachine are interconnected by a shrouding arrangement including stepped tenons 4 at the tip of each blade 2, each tenon 4 having a base portion 6 which loosely engages a hole in a first shroud segment 14 and a top portion 7 which is rigidly connected to a further shroud segment 14 overlying and in staggered relationship to the first segment. In the arrangement shown the segments 14 are cranked at 15 and the first segment rigidly engages the top portions 7 of the tenons 4 of an adjacent blade 2. In a modification Figs. 1 to 3 (not shown) the shroud segments are not cranked so that the first or inner segments loosely engage the base portions 6 of the tenons 4 on adjacent blades 2 whereas the further or outer segments are rigidly connected to tenon top portions 7. The inner shroud segments are urged into frictional engagement with the outer segements by centrifugal force, thus assisting vibration damping.
GB03233/70A 1969-04-11 1970-03-19 Improvements in turbo machines Expired GB1270203A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US81545069A 1969-04-11 1969-04-11

Publications (1)

Publication Number Publication Date
GB1270203A true GB1270203A (en) 1972-04-12

Family

ID=25217825

Family Applications (1)

Application Number Title Priority Date Filing Date
GB03233/70A Expired GB1270203A (en) 1969-04-11 1970-03-19 Improvements in turbo machines

Country Status (5)

Country Link
US (1) US3572968A (en)
CH (1) CH521513A (en)
DE (1) DE2016283A1 (en)
FR (1) FR2043077A5 (en)
GB (1) GB1270203A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2228542A (en) * 1988-12-19 1990-08-29 Mtu Muenchen Gmbh Compressor blade-tip shroud arrangement

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1290134A (en) * 1970-01-23 1972-09-20
US3649133A (en) * 1970-09-10 1972-03-14 Westinghouse Electric Corp Rotor blade coupler arrangement
US3677662A (en) * 1970-10-09 1972-07-18 Avco Corp Multilayer ring damped turbomachine rotor assembly
US4025232A (en) * 1973-11-27 1977-05-24 Hitachi, Ltd. Turbomachine rotor assembly
JPS5330844B2 (en) * 1975-01-24 1978-08-30
JPS5925087B2 (en) * 1980-06-04 1984-06-14 株式会社日立製作所 Turbine rotor blade coupling device
US5299915A (en) * 1992-07-15 1994-04-05 General Electric Corporation Bucket for the last stage of a steam turbine
US5267834A (en) * 1992-12-30 1993-12-07 General Electric Company Bucket for the last stage of a steam turbine
US5501573A (en) * 1993-01-29 1996-03-26 Steam Specialties, Inc. Segmented seal assembly and method for retrofitting the same to turbines and the like
US5509784A (en) * 1994-07-27 1996-04-23 General Electric Co. Turbine bucket and wheel assembly with integral bucket shroud
FR2811014B1 (en) * 2000-06-30 2002-12-06 Framatome Sa TURBINE WHEEL COMPRISING A LINK DEVICE DAMPING THE WHEEL FINS
US6454534B1 (en) * 2000-12-21 2002-09-24 General Electric Company Flush bucket cover
US6644924B1 (en) * 2002-05-31 2003-11-11 General Electric Company Covers for turbine buckets and methods of assembly
FR2886012B1 (en) 2005-05-23 2007-07-06 Snecma Moteurs Sa METHOD OF MASS CALIBRATION OF WORKPIECES FOR ROTOR PERIPHERY
US20080089789A1 (en) * 2006-10-17 2008-04-17 Thomas Joseph Farineau Airfoils for use with turbine assemblies and methods of assembling the same
US8435008B2 (en) * 2008-10-17 2013-05-07 United Technologies Corporation Turbine blade including mistake proof feature
DE102009052881A1 (en) 2009-11-13 2011-05-26 Mtu Aero Engines Gmbh Gas turbine blade for a turbomachine
US9347326B2 (en) 2012-11-02 2016-05-24 General Electric Company Integral cover bucket assembly
US9359913B2 (en) 2013-02-27 2016-06-07 General Electric Company Steam turbine inner shell assembly with common grooves

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR321739A (en) * 1902-06-04 1903-01-19 Parsons Foreign Patents Compan Improvements to steam turbine blades
US1129920A (en) * 1912-07-02 1915-03-02 Milton E Thompson Turbine-wheel.
US1842957A (en) * 1929-03-22 1932-01-26 Gen Electric Bridge band for blade groups of turbine rotors
GB344297A (en) * 1929-05-22 1931-03-05 Gen Electric Improvements in and relating to turbine wheels
GB377101A (en) * 1932-01-19 1932-07-21 English Electric Co Ltd Attaching shrouding to blades of elastic fluid turbines
US2221678A (en) * 1938-08-30 1940-11-12 Gen Electric Elastic fluid turbine bucket wheel
US3048365A (en) * 1959-12-22 1962-08-07 Curtiss Wright Corp Rotor blade shroud and vibration damping structure
US3367629A (en) * 1966-12-19 1968-02-06 Westinghouse Electric Corp Continuous shroud for rotor blades

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2228542A (en) * 1988-12-19 1990-08-29 Mtu Muenchen Gmbh Compressor blade-tip shroud arrangement
GB2228542B (en) * 1988-12-19 1993-08-11 Mtu Muenchen Gmbh Compressor impeller

Also Published As

Publication number Publication date
DE2016283A1 (en) 1970-10-22
FR2043077A5 (en) 1971-02-12
CH521513A (en) 1972-04-15
US3572968A (en) 1971-03-30

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