GB1411316A - Vaned rotors for gas turbines - Google Patents

Vaned rotors for gas turbines

Info

Publication number
GB1411316A
GB1411316A GB4902873A GB4902873A GB1411316A GB 1411316 A GB1411316 A GB 1411316A GB 4902873 A GB4902873 A GB 4902873A GB 4902873 A GB4902873 A GB 4902873A GB 1411316 A GB1411316 A GB 1411316A
Authority
GB
United Kingdom
Prior art keywords
fibres
grooves
ceramic
oct
coil
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
GB4902873A
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.)
Fiat SpA
Original Assignee
Fiat SpA
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 Fiat SpA filed Critical Fiat SpA
Publication of GB1411316A publication Critical patent/GB1411316A/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
    • F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
    • F01D21/04—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for responsive to undesired position of rotor relative to stator or to breaking-off of a part of the rotor, e.g. indicating such position
    • F01D21/045—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for responsive to undesired position of rotor relative to stator or to breaking-off of a part of the rotor, e.g. indicating such position special arrangements in stators or in rotors dealing with breaking-off of part of 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
    • F01D5/12—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

1411316 Bladed turbine rotors FIAT SpA 22 Oct 1973 [23 Oct 1972] 49028/73 Heading F1T To retain the ceramic blades 18 of a gas turbine rotor against radial movement relative to a metal rotor disc 10, a coil 28 formed of filaments of ceramic fibres or carbon fibres is wound circumferentially around the tips of the blades. Each tip is formed with a part-cylindrical shroud 22 to receive the coil. The root of the blade, is received in axial slots 20 having a cross-section as shown, or of part-circular or truncated V-shape. Circumferential grooves (14), Fig. 1, (not shown), intersect grooves 20 and facilitate axial retention of the blade roots in grooves 20. To protect against oxidation of the fibres, they may be coated with a thin layer of liquid ceramic during winding, or metallized before or after winding.
GB4902873A 1972-10-23 1973-10-22 Vaned rotors for gas turbines Expired GB1411316A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT70323/72A IT975329B (en) 1972-10-23 1972-10-23 STRUCTURE OF STATIC OR ROTATING METALLIC AND NOM METALLIC PARTS FOR HIGH TEMPERATURE ENVIRONMENTS ESPECIALLY FOR ROTORS AND STATE OF GAS TURBINES

Publications (1)

Publication Number Publication Date
GB1411316A true GB1411316A (en) 1975-10-22

Family

ID=11313765

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4902873A Expired GB1411316A (en) 1972-10-23 1973-10-22 Vaned rotors for gas turbines

Country Status (4)

Country Link
US (1) US3857650A (en)
FR (1) FR2204216A5 (en)
GB (1) GB1411316A (en)
IT (1) IT975329B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2475113A1 (en) * 1980-02-04 1981-08-07 Rockwell International Corp CERAMIC ROTOR FOR TURBINE
GB2228542A (en) * 1988-12-19 1990-08-29 Mtu Muenchen Gmbh Compressor blade-tip shroud arrangement

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4011295A (en) * 1974-10-07 1977-03-08 The Garrett Corporation Ceramic rotor for gas turbine engine
US4017209A (en) * 1975-12-15 1977-04-12 United Technologies Corporation Turbine rotor construction
US4580943A (en) * 1980-12-29 1986-04-08 The United States Of America As Represented By The Secretary Of The Army Turbine wheel for hot gas turbine engine
US4767273A (en) * 1987-02-24 1988-08-30 Westinghouse Electric Corp. Apparatus and method for reducing blade flop in steam turbine
US6223524B1 (en) * 1998-01-23 2001-05-01 Diversitech, Inc. Shrouds for gas turbine engines and methods for making the same
US6439844B1 (en) * 2000-12-11 2002-08-27 General Electric Company Turbine bucket cover and brush seal
FR2940352B1 (en) * 2008-12-23 2014-11-28 Snecma MOBILE WHEEL OF A TURBOMACHINE IN MATERIAL COMPOSITE MATERIAL WITH METAL LECHETTES.
GB2483495B (en) * 2010-09-10 2013-02-13 Magnaparva Space Ltd Mounting of rotor blades
CN102418562B (en) * 2011-08-15 2014-04-02 清华大学 Fiber winding prestress turbine rotor
GB2521588A (en) * 2013-10-11 2015-07-01 Reaction Engines Ltd Turbine blades

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR57013E (en) * 1945-06-16 1952-11-03
FR907059A (en) * 1946-09-20 1946-02-28 High temperature gas turbine
US3095138A (en) * 1957-05-28 1963-06-25 Studebaker Corp Rotating shroud
US3042366A (en) * 1958-05-05 1962-07-03 Holmquist Ernst Rudolf Magnus Axial flow gas turbine
US3403844A (en) * 1967-10-02 1968-10-01 Gen Electric Bladed member and method for making
GB1233022A (en) * 1968-08-28 1971-05-26
US3556675A (en) * 1969-01-29 1971-01-19 Gen Electric Turbomachinery rotor with integral shroud
US3754839A (en) * 1972-05-01 1973-08-28 United Aircraft Corp Filament reinforced rotor assembly

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2475113A1 (en) * 1980-02-04 1981-08-07 Rockwell International Corp CERAMIC ROTOR FOR TURBINE
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
US3857650A (en) 1974-12-31
IT975329B (en) 1974-07-20
FR2204216A5 (en) 1974-05-17

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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