CA997273A - Blade platform with friction damping interlock - Google Patents

Blade platform with friction damping interlock

Info

Publication number
CA997273A
CA997273A CA195,891A CA195891A CA997273A CA 997273 A CA997273 A CA 997273A CA 195891 A CA195891 A CA 195891A CA 997273 A CA997273 A CA 997273A
Authority
CA
Canada
Prior art keywords
interlock
friction damping
blade platform
blade
platform
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
CA195,891A
Other versions
CA195891S (en
Inventor
Paul Chifos
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
Application granted granted Critical
Publication of CA997273A publication Critical patent/CA997273A/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
    • F01D5/3023—Fixing blades to rotors; Blade roots ; Blade spacers of radial insertion type, e.g. in individual recesses
    • F01D5/303—Fixing blades to rotors; Blade roots ; Blade spacers of radial insertion type, e.g. in individual recesses in a circumferential slot
    • F01D5/3038—Fixing blades to rotors; Blade roots ; Blade spacers of radial insertion type, e.g. in individual recesses in a circumferential slot the slot having inwardly directed abutment faces on both sides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2240/00—Components
    • F05D2240/80—Platforms for stationary or moving blades
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S416/00—Fluid reaction surfaces, i.e. impellers
    • Y10S416/50—Vibration damping features

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
CA195,891A 1973-04-30 1974-03-25 Blade platform with friction damping interlock Expired CA997273A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US355772A US3923420A (en) 1973-04-30 1973-04-30 Blade platform with friction damping interlock

Publications (1)

Publication Number Publication Date
CA997273A true CA997273A (en) 1976-09-21

Family

ID=23398786

Family Applications (1)

Application Number Title Priority Date Filing Date
CA195,891A Expired CA997273A (en) 1973-04-30 1974-03-25 Blade platform with friction damping interlock

Country Status (7)

Country Link
US (1) US3923420A (en)
JP (1) JPS5031409A (en)
BE (1) BE814437A (en)
CA (1) CA997273A (en)
DE (1) DE2420294A1 (en)
FR (1) FR2227426B3 (en)
IT (1) IT1010206B (en)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4135857A (en) * 1977-06-09 1979-01-23 United Technologies Corporation Reduced drag airfoil platforms
US4194869A (en) * 1978-06-29 1980-03-25 United Technologies Corporation Stator vane cluster
US4685863A (en) * 1979-06-27 1987-08-11 United Technologies Corporation Turbine rotor assembly
GB2119026B (en) * 1981-03-25 1984-06-20 Rolls Royce Aerofoil blade mounting
US4907944A (en) * 1984-10-01 1990-03-13 General Electric Company Turbomachinery blade mounting arrangement
US4688992A (en) * 1985-01-25 1987-08-25 General Electric Company Blade platform
US4714410A (en) * 1986-08-18 1987-12-22 Westinghouse Electric Corp. Trailing edge support for control stage steam turbine blade
DE3743253A1 (en) * 1987-12-19 1989-06-29 Mtu Muenchen Gmbh AXIAL FLOWED BLADE BLADES FOR COMPRESSORS OR TURBINES
US4878811A (en) * 1988-11-14 1989-11-07 United Technologies Corporation Axial compressor blade assembly
US5313786A (en) * 1992-11-24 1994-05-24 United Technologies Corporation Gas turbine blade damper
US6158961A (en) * 1998-10-13 2000-12-12 General Electric Compnay Truncated chamfer turbine blade
GB2372784A (en) * 2000-11-24 2002-09-04 Eclectic Energy Ltd Air Turbine Interlocking Blade Root and Hub Assembly
US6991428B2 (en) 2003-06-12 2006-01-31 Pratt & Whitney Canada Corp. Fan blade platform feature for improved blade-off performance
GB0523106D0 (en) * 2005-11-12 2005-12-21 Rolls Royce Plc A cooliing arrangement
DE102009029587A1 (en) * 2009-09-18 2011-03-24 Man Diesel & Turbo Se Rotor of a turbomachine
DE102010031213A1 (en) * 2010-07-12 2012-01-12 Man Diesel & Turbo Se Rotor of a turbomachine
FR2975124B1 (en) * 2011-05-09 2013-05-24 Snecma AIRCRAFT ENGINE ANNULAR VIRO COMPRISING AN AUBES INTRODUCTION WINDOW
US8888459B2 (en) * 2011-08-23 2014-11-18 General Electric Company Coupled blade platforms and methods of sealing
US8932023B2 (en) 2012-01-13 2015-01-13 General Electric Company Rotor wheel for a turbomachine
ES2668268T3 (en) * 2012-01-23 2018-05-17 MTU Aero Engines AG Rotor for a turbomachine and manufacturing process
EP2818641A1 (en) 2013-06-26 2014-12-31 Siemens Aktiengesellschaft Turbine blade with graduated and chamfered platform edge
EP2918784A1 (en) * 2014-03-13 2015-09-16 Siemens Aktiengesellschaft Blade foot for a turbine blade
US10190595B2 (en) 2015-09-15 2019-01-29 General Electric Company Gas turbine engine blade platform modification
US11130170B2 (en) * 2018-02-02 2021-09-28 General Electric Company Integrated casting core-shell structure for making cast component with novel cooling hole architecture
US10633986B2 (en) * 2018-08-31 2020-04-28 Rolls-Roye Corporation Platform with axial attachment for blade with circumferential attachment
EP4202186A1 (en) * 2021-12-27 2023-06-28 Rolls-Royce plc Turbine blade

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2391623A (en) * 1943-12-08 1945-12-25 Armstrong Siddeley Motors Ltd Bladed rotor
GB706618A (en) * 1950-06-22 1954-03-31 Power Jets Res & Dev Ltd Improvements in or relating to rotors for turbines and similarly bladed fluid flow machines
FR1033197A (en) * 1951-02-27 1953-07-08 Rateau Soc Vibration dampers for mobile turbo-machine blades
US2955799A (en) * 1957-02-11 1960-10-11 United Aircraft Corp Blade damping means
US2999631A (en) * 1958-09-05 1961-09-12 Gen Electric Dual airfoil
US3014695A (en) * 1960-02-03 1961-12-26 Gen Electric Turbine bucket retaining means
US3104093A (en) * 1961-04-11 1963-09-17 United Aircraft Corp Blade damping device
US3216700A (en) * 1963-10-24 1965-11-09 Gen Electric Rotor blade locking means
GB1065278A (en) * 1964-09-04 1967-04-12 Rolls Royce Improvements in or relating to compressors for gas turbine jet propulsion engines
US3396905A (en) * 1966-09-28 1968-08-13 Gen Motors Corp Ducted fan
GB1194061A (en) * 1968-01-17 1970-06-10 Rolls Royce Improvements relating to Pressure Exchanger Rotors
DE2046486C3 (en) * 1970-09-21 1974-03-07 Fa. Willi Seeber, Kardaun, Bozen (Italien) Impeller for fan
GB1318654A (en) * 1970-12-05 1973-05-31 Secr Defence Bladed rotors
US3795462A (en) * 1971-08-09 1974-03-05 Westinghouse Electric Corp Vibration dampening for long twisted turbine blades

Also Published As

Publication number Publication date
BE814437A (en) 1974-10-30
DE2420294A1 (en) 1974-11-07
FR2227426B3 (en) 1977-03-04
JPS5031409A (en) 1975-03-27
US3923420A (en) 1975-12-02
IT1010206B (en) 1977-01-10
FR2227426A1 (en) 1974-11-22

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