GB1503453A - Rotor of a turbomachine - Google Patents

Rotor of a turbomachine

Info

Publication number
GB1503453A
GB1503453A GB4288776A GB4288776A GB1503453A GB 1503453 A GB1503453 A GB 1503453A GB 4288776 A GB4288776 A GB 4288776A GB 4288776 A GB4288776 A GB 4288776A GB 1503453 A GB1503453 A GB 1503453A
Authority
GB
United Kingdom
Prior art keywords
rotor
shaft
disc
ceramic
shrouds
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
GB4288776A
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.)
GROUPE EUROPEEN POUR LA TECHNIQUE DES TURBINES A VAPEUR
Original Assignee
GROUPE EUROPEEN POUR LA TECHNIQUE DES TURBINES A VAPEUR
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 GROUPE EUROPEEN POUR LA TECHNIQUE DES TURBINES A VAPEUR filed Critical GROUPE EUROPEEN POUR LA TECHNIQUE DES TURBINES A VAPEUR
Publication of GB1503453A publication Critical patent/GB1503453A/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
    • 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

1503453 Rotor blade shrouding GROUPE EUROPEEN POUR LA TECHNIQUE DES TURBINES A VAPEUR GETT SA 15 Oct 1976 [28 Oct 1975] 42887/76 Heading FIT The blades 1 of a turbine or compressor rotor have interlocking tip shrouds 3a, b &c., at least alternate shrouds having circumferential bores 5 containing dowels 6 of a higher coefficient of expansion than the shrouds such that on expansion each dowel exerts a thrust between adjacent shrouds. Each dowel 6 may be of steel and has a thickened portion 7 which is a force fit in the associated bore 5. The latter may extend wholly through the shroud, as shown, or in a modification Fig. 5 (not shown) only partially therethrough. Every shroud may contain a dowel Fig. 2 (not shown), alternate dowels being disposed on opposite sides of the rotor. 1503457 Gas turbine engine rotors MOTOREN-UND TURBINEN-UNION MUNCHEN GmbH 26 Nov 1976 [3 Dec 1975] 49494/76 Heading F1T The rotor of a gas turbine engine comprises a ceramic turbine motor disc integral with a ceramic rotor shaft, the shaft extending from the rotor disc at at least one side thereof into a region spaced from and cooler than the turbine disc. In the embodiment, the ceramic turbine rotor disc 14 is formed integrally with a shaft 12 which extends at both sides of the disc, the shaft being connected to a steel shaft 11, for example by brazing or by interlocking type of joint utilizing for example a support sleeve 18. The ceramic shaft is also formed integrally with a disc 15 which forms part of an end thrust balancing device utilizing bearings 21 which may be air bearings. The shaft 12 is supported for rotation in bearings 20 which also may be air bearings.
GB4288776A 1975-10-28 1976-10-15 Rotor of a turbomachine Expired GB1503453A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7532900A FR2329845A1 (en) 1975-10-28 1975-10-28 PROVISION FOR CONTINUOUS LINKAGE OF MOBILE BLADES OF A TURBO-MACHINE

Publications (1)

Publication Number Publication Date
GB1503453A true GB1503453A (en) 1978-03-08

Family

ID=9161729

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4288776A Expired GB1503453A (en) 1975-10-28 1976-10-15 Rotor of a turbomachine

Country Status (4)

Country Link
CH (1) CH596436A5 (en)
DE (1) DE2647630C3 (en)
FR (1) FR2329845A1 (en)
GB (1) GB1503453A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2139295A (en) * 1983-05-05 1984-11-07 Tuomo Kaivola Thermal joint e.g. for a turbine
US4722668A (en) * 1985-08-31 1988-02-02 Bbc Brown, Boveri & Company, Limited Device for damping blade vibrations in turbo-machines
US4767273A (en) * 1987-02-24 1988-08-30 Westinghouse Electric Corp. Apparatus and method for reducing blade flop in steam turbine
US4784571A (en) * 1987-02-09 1988-11-15 Westinghouse Electric Corp. Apparatus and method for reducing blade flop in steam turbine
US4815938A (en) * 1987-12-24 1989-03-28 Westinghouse Electric Corp. Shroud gap control for integral shrouded blades
US4840539A (en) * 1987-03-12 1989-06-20 Alsthom Moving blading for steam turbines
GB2245034A (en) * 1990-05-11 1991-12-18 Mtu Muenchen Gmbh Bladed rotor having an integral shroud
GB2467582A (en) * 2009-02-10 2010-08-11 Rolls Royce Plc Vibration damper assembly
CN102597426A (en) * 2009-09-18 2012-07-18 曼柴油机和涡轮机欧洲股份公司 Rotor of a turbomachine
EP2578801A1 (en) * 2011-10-07 2013-04-10 MTU Aero Engines GmbH Shroud for a turbo engine blade

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3517283A1 (en) * 1985-05-14 1986-11-20 MAN Gutehoffnungshütte GmbH, 4200 Oberhausen BINDING BLADES OF A THERMAL TURBO MACHINE
GB9609721D0 (en) * 1996-05-09 1996-07-10 Rolls Royce Plc Vibration damping
US5846050A (en) * 1997-07-14 1998-12-08 General Electric Company Vane sector spring
DE102009052883A1 (en) * 2009-11-13 2011-05-19 Mtu Aero Engines Gmbh Coupling element for mechanical coupling of blades and rotor
ES2583756T3 (en) * 2011-04-01 2016-09-22 MTU Aero Engines AG Blade arrangement for a turbomachine

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2139295A (en) * 1983-05-05 1984-11-07 Tuomo Kaivola Thermal joint e.g. for a turbine
US4722668A (en) * 1985-08-31 1988-02-02 Bbc Brown, Boveri & Company, Limited Device for damping blade vibrations in turbo-machines
US4784571A (en) * 1987-02-09 1988-11-15 Westinghouse Electric Corp. Apparatus and method for reducing blade flop in steam turbine
US4767273A (en) * 1987-02-24 1988-08-30 Westinghouse Electric Corp. Apparatus and method for reducing blade flop in steam turbine
US4840539A (en) * 1987-03-12 1989-06-20 Alsthom Moving blading for steam turbines
US4815938A (en) * 1987-12-24 1989-03-28 Westinghouse Electric Corp. Shroud gap control for integral shrouded blades
GB2245034A (en) * 1990-05-11 1991-12-18 Mtu Muenchen Gmbh Bladed rotor having an integral shroud
GB2245034B (en) * 1990-05-11 1994-02-16 Mtu Muenchen Gmbh An integral wheel having a shroud band
GB2467582A (en) * 2009-02-10 2010-08-11 Rolls Royce Plc Vibration damper assembly
GB2467582B (en) * 2009-02-10 2011-07-06 Rolls Royce Plc Vibration damper assembly
US8596980B2 (en) 2009-02-10 2013-12-03 Rolls-Royce Plc Vibration damper assembly
CN102597426A (en) * 2009-09-18 2012-07-18 曼柴油机和涡轮机欧洲股份公司 Rotor of a turbomachine
CN102597426B (en) * 2009-09-18 2014-09-17 曼柴油机和涡轮机欧洲股份公司 Rotor of a turbomachine
US9127562B2 (en) 2009-09-18 2015-09-08 Man Diesel & Turbo Se Rotor of a turbomachine
EP2578801A1 (en) * 2011-10-07 2013-04-10 MTU Aero Engines GmbH Shroud for a turbo engine blade

Also Published As

Publication number Publication date
CH596436A5 (en) 1978-03-15
FR2329845B1 (en) 1979-05-04
DE2647630A1 (en) 1977-05-05
DE2647630C3 (en) 1978-10-19
FR2329845A1 (en) 1977-05-27
DE2647630B2 (en) 1978-03-02

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19941015