GB1295003A - - Google Patents

Info

Publication number
GB1295003A
GB1295003A GB1295003DA GB1295003A GB 1295003 A GB1295003 A GB 1295003A GB 1295003D A GB1295003D A GB 1295003DA GB 1295003 A GB1295003 A GB 1295003A
Authority
GB
United Kingdom
Prior art keywords
rotor
plates
roots
bimetallic
face
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
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 filed Critical
Publication of GB1295003A publication Critical patent/GB1295003A/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
    • F01D5/3007—Fixing blades to rotors; Blade roots ; Blade spacers of axial insertion type
    • F01D5/3015—Fixing blades to rotors; Blade roots ; Blade spacers of axial insertion type with side plates

Landscapes

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

Abstract

1295003 Turbomachine rotors ROLLS ROYCE (1971) Ltd 15 June 1971 27913/71 Heading FIT A gas turbine or like rotor 10 having roots 12 of blades 11 mounted in axial slots 13 in the rotor periphery includes an annular array of bimetallic segmental sealing and blade locking plates 20 located in facing annular grooves 16, 19 in the rotor and blade platforms 17 respectively. Each plate 20 is made of two sheets 22, 23 of stainless steel of differing coefficients of thermal expansion which are welded or brazed together. The sheet having the higher coefficient of expansion is disposed so as to abut the roots 12 and the end face 21 of the rotor. With increase in temperature plates 20 tend to distort so as to more tightly engage the grooves 16, 19 and adjacent rotor and root faces. Projections 37 prevent the plates from being assembled the wrong way round. A second set of bimetallic plates may be provided at the other face of the rotor.
GB1295003D 1971-06-15 1971-06-15 Expired GB1295003A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2791371 1971-06-15

Publications (1)

Publication Number Publication Date
GB1295003A true GB1295003A (en) 1972-11-01

Family

ID=10267324

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1295003D Expired GB1295003A (en) 1971-06-15 1971-06-15

Country Status (1)

Country Link
GB (1) GB1295003A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4094615A (en) * 1976-12-27 1978-06-13 Electric Power Research Institute, Inc. Blade attachment structure for gas turbine rotor
GB2194000A (en) * 1986-08-13 1988-02-24 Rolls Royce Plc Turbine rotor assembly with seal plates
US4730983A (en) * 1986-09-03 1988-03-15 Societe Nationale D'etude Et De Construction De Moteurs D'aviation "Snecma" System for attaching a rotor blade to a rotor disk
US5256035A (en) * 1992-06-01 1993-10-26 United Technologies Corporation Rotor blade retention and sealing construction
US5330324A (en) * 1992-09-09 1994-07-19 Societe Nationale D'etude Et De Construction De Moteurs D'aviation "Snecma" Annular gasket disposed at one axial extremity of a rotor and covering blade feet
GB2294732A (en) * 1994-11-05 1996-05-08 Rolls Royce Plc Integral disc seal for turbomachine
WO1997001695A1 (en) * 1995-06-26 1997-01-16 Bmw Rolls-Royce Gmbh A turbine disc with blade seal plates
DE102009007664A1 (en) 2009-02-05 2010-08-12 Mtu Aero Engines Gmbh Sealing device on the blade shank of a rotor stage of an axial flow machine
GB2580791A (en) * 2019-01-15 2020-07-29 Safran Rotor disc sealing flange sector

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4094615A (en) * 1976-12-27 1978-06-13 Electric Power Research Institute, Inc. Blade attachment structure for gas turbine rotor
GB2194000A (en) * 1986-08-13 1988-02-24 Rolls Royce Plc Turbine rotor assembly with seal plates
US4730983A (en) * 1986-09-03 1988-03-15 Societe Nationale D'etude Et De Construction De Moteurs D'aviation "Snecma" System for attaching a rotor blade to a rotor disk
US5256035A (en) * 1992-06-01 1993-10-26 United Technologies Corporation Rotor blade retention and sealing construction
US5330324A (en) * 1992-09-09 1994-07-19 Societe Nationale D'etude Et De Construction De Moteurs D'aviation "Snecma" Annular gasket disposed at one axial extremity of a rotor and covering blade feet
US5601404A (en) * 1994-11-05 1997-02-11 Rolls-Royce Plc Integral disc seal
GB2294732A (en) * 1994-11-05 1996-05-08 Rolls Royce Plc Integral disc seal for turbomachine
WO1997001695A1 (en) * 1995-06-26 1997-01-16 Bmw Rolls-Royce Gmbh A turbine disc with blade seal plates
DE102009007664A1 (en) 2009-02-05 2010-08-12 Mtu Aero Engines Gmbh Sealing device on the blade shank of a rotor stage of an axial flow machine
WO2010088881A1 (en) 2009-02-05 2010-08-12 Mtu Aero Engines Gmbh Sealing apparatus at the blade shaft of a rotor stage of an axial turbomachine
US8870542B2 (en) 2009-02-05 2014-10-28 Mtu Aero Engines Gmbh Sealing apparatus at the blade shaft of a rotor stage of an axial turbomachine
GB2580791A (en) * 2019-01-15 2020-07-29 Safran Rotor disc sealing flange sector
US11365643B2 (en) 2019-01-15 2022-06-21 Safran Aircraft Engines Rotor disc sealing flange sector
GB2580791B (en) * 2019-01-15 2022-08-24 Safran Aircraft Engines Rotor disc sealing flange sector

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Legal Events

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