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GB1087514A - Arrangement for damping vibration of steam-turbine blades - Google Patents

Arrangement for damping vibration of steam-turbine blades

Info

Publication number
GB1087514A
GB1087514A GB15704/66A GB1570466A GB1087514A GB 1087514 A GB1087514 A GB 1087514A GB 15704/66 A GB15704/66 A GB 15704/66A GB 1570466 A GB1570466 A GB 1570466A GB 1087514 A GB1087514 A GB 1087514A
Authority
GB
United Kingdom
Prior art keywords
steam
turbine blades
arrangement
april
spaces
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
GB15704/66A
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Publication of GB1087514A publication Critical patent/GB1087514A/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
    • F01D5/12—Blades
    • F01D5/14—Form or construction
    • F01D5/141—Shape, i.e. outer, aerodynamic form
    • F01D5/145—Means for influencing boundary layers or secondary circulations
    • 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
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/32—Collecting of condensation water; Drainage ; Removing solid particles
    • 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
    • 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)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

1,087,514. Steam turbine blades. HITACHI Ltd. April 7, 1966 [April 9, 1965], No.15704/66. Heading F1T. A steam turbine blade vibration damping construction comprises grooves 6 formed in the surface of each blade 8 adjacent its leading edge to collect condensation water from the steam flow and direct it radially outwards through apertures 5 in an integral shroud segment 4 into spaces 12, 13, to act as a vibration damping fluid. The spaces are formed between the segment 4 and a shroud ring 10 having further shroud segments riveted, screwed or welded to its intermediate adjacent blades.
GB15704/66A 1965-04-09 1966-04-07 Arrangement for damping vibration of steam-turbine blades Expired GB1087514A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2054465 1965-04-09

Publications (1)

Publication Number Publication Date
GB1087514A true GB1087514A (en) 1967-10-18

Family

ID=12030081

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15704/66A Expired GB1087514A (en) 1965-04-09 1966-04-07 Arrangement for damping vibration of steam-turbine blades

Country Status (2)

Country Link
US (1) US3290004A (en)
GB (1) GB1087514A (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3527544A (en) * 1968-12-12 1970-09-08 Gen Motors Corp Cooled blade shroud
US3973870A (en) * 1974-11-04 1976-08-10 Westinghouse Electric Corporation Internal moisture removal scheme for low pressure axial flow steam turbine
CH606775A5 (en) * 1975-09-30 1978-11-15 Kraftwerk Union Ag
JPS54141907A (en) * 1978-04-03 1979-11-05 Toshiba Corp Connector for moving blades of turbine
US5261785A (en) * 1992-08-04 1993-11-16 General Electric Company Rotor blade cover adapted to facilitate moisture removal
DE19922443A1 (en) * 1999-05-07 2000-11-09 Basf Ag Use of dopamine D3 receptor ligands in the manufacture of drugs for the treatment of renal dysfunction
US6976826B2 (en) * 2003-05-29 2005-12-20 Pratt & Whitney Canada Corp. Turbine blade dimple
US7494325B2 (en) * 2005-05-18 2009-02-24 Hartzell Fan, Inc. Fan blade with ridges
US7318699B2 (en) * 2005-05-31 2008-01-15 General Electric Company Moisture removal grooves on steam turbine buckets and covers and methods of manufacture
ES2303163T3 (en) * 2005-08-26 2008-08-01 Siemens Aktiengesellschaft HOLLOW TURBINE ALABE.
EP1764479A1 (en) * 2005-09-15 2007-03-21 ALSTOM Technology Ltd Coupled shroud plates for a row of blades of a turbomachine
EP1924757A1 (en) * 2005-09-15 2008-05-28 Alstom Technology Ltd Cover strip comprising a detachable anchoring for a row of blades of a turbomachine
US8167572B2 (en) 2008-07-14 2012-05-01 Pratt & Whitney Canada Corp. Dynamically tuned turbine blade growth pocket
JP5431047B2 (en) * 2009-07-14 2014-03-05 株式会社東芝 Steam turbine
EP2530330B1 (en) * 2011-06-01 2016-05-25 MTU Aero Engines AG Rotor blade for the compressor of a turbo engine, compressor and turbo machine
US11858615B2 (en) 2022-01-10 2024-01-02 General Electric Company Rotating airfoil assembly with opening formed therein to eject or to draw air

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1829674A (en) * 1928-12-08 1931-10-27 Gen Electric Elastic fluid turbine and the like
US2221678A (en) * 1938-08-30 1940-11-12 Gen Electric Elastic fluid turbine bucket wheel
US2292072A (en) * 1940-01-10 1942-08-04 Westinghouse Electric & Mfg Co Turbine blade vibration damper
US2349187A (en) * 1941-03-08 1944-05-16 Westinghouse Electric & Mfg Co Vibration dampener

Also Published As

Publication number Publication date
US3290004A (en) 1966-12-06

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