SE7700596L - FIXING AND DAMPING DEVICE FOR TURBINE BOWLS - Google Patents

FIXING AND DAMPING DEVICE FOR TURBINE BOWLS

Info

Publication number
SE7700596L
SE7700596L SE7700596A SE7700596A SE7700596L SE 7700596 L SE7700596 L SE 7700596L SE 7700596 A SE7700596 A SE 7700596A SE 7700596 A SE7700596 A SE 7700596A SE 7700596 L SE7700596 L SE 7700596L
Authority
SE
Sweden
Prior art keywords
turbine
blades
bowls
fixing
damping
Prior art date
Application number
SE7700596A
Other languages
Unknown language ( )
Swedish (sv)
Inventor
R E Mcginnis
R E Warner
Original Assignee
Westinghouse Electric Corp
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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of SE7700596L publication Critical patent/SE7700596L/en

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
    • F01D5/24—Blade-to-blade connections, e.g. for damping vibrations using wire or the like

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Support Of The Bearing (AREA)

Abstract

Mounted between adjacent blades of the axial flow blade ring of a turbine is a setting and damping wire (66) which passes through openings (44, 46) in the blades and is provided at its ends (68, 70) with bearing hemispheres (72, 74). The latter are supported in hollow spherical bearing surfaces (62, 64) of the blades. Between the bearing hemispheres (72, 74) and the hollow spherical bearing surfaces (62, 64) there is a friction-generating boundary layer, by means of which kinetic energy is used up between adjacent blades for the damping of vibrations. By virtue of the spherical bearing surfaces, friction damping occurs in all directions. <IMAGE>
SE7700596A 1976-01-21 1977-01-20 FIXING AND DAMPING DEVICE FOR TURBINE BOWLS SE7700596L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US65083776A 1976-01-21 1976-01-21

Publications (1)

Publication Number Publication Date
SE7700596L true SE7700596L (en) 1977-07-22

Family

ID=24610519

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7700596A SE7700596L (en) 1976-01-21 1977-01-20 FIXING AND DAMPING DEVICE FOR TURBINE BOWLS

Country Status (10)

Country Link
JP (1) JPS5290707A (en)
BE (1) BE850637A (en)
CA (1) CA1048413A (en)
CH (1) CH616483A5 (en)
DE (1) DE2701683A1 (en)
ES (1) ES454625A1 (en)
FR (1) FR2339059A1 (en)
GB (1) GB1507811A (en)
IT (1) IT1078378B (en)
SE (1) SE7700596L (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9609721D0 (en) * 1996-05-09 1996-07-10 Rolls Royce Plc Vibration damping
JP5836410B2 (en) * 2014-02-27 2015-12-24 三菱重工業株式会社 Rotor blade and rotating machine
US11976565B2 (en) * 2022-07-27 2024-05-07 Ge Infrastructure Technology Llc Nested damper pin and vibration dampening system for turbine nozzle or blade
US12371998B2 (en) 2023-06-29 2025-07-29 Ge Infrastructure Technology Llc Nested damper pin and vibration dampening system for turbine nozzle or blade

Also Published As

Publication number Publication date
CA1048413A (en) 1979-02-13
CH616483A5 (en) 1980-03-31
FR2339059B1 (en) 1980-09-05
ES454625A1 (en) 1978-03-16
JPS5290707A (en) 1977-07-30
IT1078378B (en) 1985-05-08
JPS5434083B2 (en) 1979-10-24
DE2701683A1 (en) 1977-07-28
FR2339059A1 (en) 1977-08-19
GB1507811A (en) 1978-04-19
BE850637A (en) 1977-07-22

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