EP0036044B1 - Dämpfungselement für Turbinenschaufeln - Google Patents

Dämpfungselement für Turbinenschaufeln Download PDF

Info

Publication number
EP0036044B1
EP0036044B1 EP19800200233 EP80200233A EP0036044B1 EP 0036044 B1 EP0036044 B1 EP 0036044B1 EP 19800200233 EP19800200233 EP 19800200233 EP 80200233 A EP80200233 A EP 80200233A EP 0036044 B1 EP0036044 B1 EP 0036044B1
Authority
EP
European Patent Office
Prior art keywords
turbine
damping element
damping
blades
turbine blades
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
EP19800200233
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0036044A1 (de
Inventor
Wilhelm Dr. Endres
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.)
BBC Brown Boveri AG Switzerland
Original Assignee
BBC Brown Boveri AG Switzerland
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 BBC Brown Boveri AG Switzerland filed Critical BBC Brown Boveri AG Switzerland
Priority to EP19800200233 priority Critical patent/EP0036044B1/de
Priority to DE8080200233T priority patent/DE3069854D1/de
Priority to JP3401081A priority patent/JPS56143302A/ja
Publication of EP0036044A1 publication Critical patent/EP0036044A1/de
Application granted granted Critical
Publication of EP0036044B1 publication Critical patent/EP0036044B1/de
Expired legal-status Critical Current

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

Definitions

  • the present invention relates to a damping element for internally cooled turbine blades.
  • the damping tubes between the individual turbine blades can have openings directed downstream to the flow channel of the turbine.
  • 1, 1 denotes a damping tube which connects two internally cooled turbine blades 2 to one another.
  • the damping tube 1 is closed on the pressure side of the turbine blade 2 and, in the interior 3 of the blade 2 through which the coolant flows, has inlet openings 4 through which the coolant enters the damping tube 1 according to the arrows 5.
  • the cavity of the damping tube 1 is flowed through and the coolant exits through an outlet opening 6 at the outlet end 7 into the flow channel (not shown) of the turbine.
  • FIG. 2 shows an embodiment analogous to FIG. 1, but the damping tubes 1, in addition to the outlet opening 6, also have additional openings 8, directed downstream between the turbine blades 2, to the flow channel of the turbine. Through these additional openings, better cooling of the outer surface of the damping tube 1 can be achieved.
  • the damping element 1 can also have other shapes besides the round tube shape shown, for example that of an aerodynamic profile.
  • the tube interior can be divided into several channels.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
EP19800200233 1980-03-13 1980-03-13 Dämpfungselement für Turbinenschaufeln Expired EP0036044B1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP19800200233 EP0036044B1 (de) 1980-03-13 1980-03-13 Dämpfungselement für Turbinenschaufeln
DE8080200233T DE3069854D1 (en) 1980-03-13 1980-03-13 Vibration damper for turbine blades
JP3401081A JPS56143302A (en) 1980-03-13 1981-03-11 Buffer member for turbine blade

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19800200233 EP0036044B1 (de) 1980-03-13 1980-03-13 Dämpfungselement für Turbinenschaufeln

Publications (2)

Publication Number Publication Date
EP0036044A1 EP0036044A1 (de) 1981-09-23
EP0036044B1 true EP0036044B1 (de) 1984-12-27

Family

ID=8186976

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19800200233 Expired EP0036044B1 (de) 1980-03-13 1980-03-13 Dämpfungselement für Turbinenschaufeln

Country Status (3)

Country Link
EP (1) EP0036044B1 (enrdf_load_stackoverflow)
JP (1) JPS56143302A (enrdf_load_stackoverflow)
DE (1) DE3069854D1 (enrdf_load_stackoverflow)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8684692B2 (en) * 2010-02-05 2014-04-01 Siemens Energy, Inc. Cooled snubber structure for turbine blades
US9435212B2 (en) * 2013-11-08 2016-09-06 Siemens Energy, Inc. Turbine airfoil with laterally extending snubber having internal cooling system
US9797259B2 (en) 2014-03-07 2017-10-24 Siemens Energy, Inc. Turbine airfoil cooling system with cooling systems using high and low pressure cooling fluids
US10287895B2 (en) 2015-12-28 2019-05-14 General Electric Company Midspan shrouded turbine rotor blades

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1034375A (fr) * 1950-03-24 1953-07-22 Bbc Brown Boveri & Cie Amortisseur de vibrations pour ailettes de turbo-machines
FR1254270A (fr) * 1960-04-14 1961-02-17 Gutehoffnungshuette Sterkrade Entretoise pour ailettes de turbines
FR1432393A (fr) * 1965-05-07 1966-03-18 Ass Elect Ind Disques de rotors de turbo-machines à écoulement axial

Also Published As

Publication number Publication date
EP0036044A1 (de) 1981-09-23
JPS56143302A (en) 1981-11-09
JPS6359002B2 (enrdf_load_stackoverflow) 1988-11-17
DE3069854D1 (en) 1985-02-07

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