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IT1110186B - Paletta per turbina con radice spinata che permette di realizzare il massimo smorzamento per attrito - Google Patents

Paletta per turbina con radice spinata che permette di realizzare il massimo smorzamento per attrito

Info

Publication number
IT1110186B
IT1110186B IT31328/77A IT3132877A IT1110186B IT 1110186 B IT1110186 B IT 1110186B IT 31328/77 A IT31328/77 A IT 31328/77A IT 3132877 A IT3132877 A IT 3132877A IT 1110186 B IT1110186 B IT 1110186B
Authority
IT
Italy
Prior art keywords
barbed
root
allows
turbine bucket
friction damping
Prior art date
Application number
IT31328/77A
Other languages
English (en)
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
Application granted granted Critical
Publication of IT1110186B publication Critical patent/IT1110186B/it

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
    • F01D5/3053—Fixing blades to rotors; Blade roots ; Blade spacers by means of pins
    • 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)
  • Turbine Rotor Nozzle Sealing (AREA)
IT31328/77A 1977-01-21 1977-12-28 Paletta per turbina con radice spinata che permette di realizzare il massimo smorzamento per attrito IT1110186B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/761,046 US4135849A (en) 1977-01-21 1977-01-21 Pinned root turbine blade providing maximum friction damping

Publications (1)

Publication Number Publication Date
IT1110186B true IT1110186B (it) 1985-12-23

Family

ID=25060949

Family Applications (1)

Application Number Title Priority Date Filing Date
IT31328/77A IT1110186B (it) 1977-01-21 1977-12-28 Paletta per turbina con radice spinata che permette di realizzare il massimo smorzamento per attrito

Country Status (3)

Country Link
US (1) US4135849A (it)
JP (1) JPS5392008A (it)
IT (1) IT1110186B (it)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4460316A (en) * 1982-12-29 1984-07-17 Westinghouse Electric Corp. Blade group with pinned root
JPS61132702A (ja) * 1984-11-30 1986-06-20 Toshiba Corp タ−ビン
US5062769A (en) * 1989-11-22 1991-11-05 Ortolano Ralph J Connector for turbine element
US5100296A (en) * 1990-04-09 1992-03-31 Westinghouse Electric Corp. Steam turbine integral control stage blade group
US5820348A (en) * 1996-09-17 1998-10-13 Fricke; J. Robert Damping system for vibrating members
JP5538468B2 (ja) * 2012-03-30 2014-07-02 株式会社日立製作所 タービン動翼とタービンロータのピン結合部の加工方法及びタービン動翼
US11306601B2 (en) * 2018-10-18 2022-04-19 Raytheon Technologies Corporation Pinned airfoil for gas turbine engines

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1289278A (en) * 1917-03-31 1918-12-31 Westinghouse Electric & Mfg Co Blade-mounting.
GB114826A (it) * 1917-03-31
US1362074A (en) * 1919-05-03 1920-12-14 British Westinghouse Electric Turbine
US2635848A (en) * 1948-10-28 1953-04-21 Packard Motor Car Co Rotor for gas turbines
US2625366A (en) * 1948-11-18 1953-01-13 Packard Motor Car Co Turbine rotor construction
GB667979A (en) * 1949-07-28 1952-03-12 Rolls Royce Improvements in or relating to axial flow compressors and turbines
US2790620A (en) * 1952-07-09 1957-04-30 Gen Electric Multiple finger dovetail attachment for turbine bucket
US3043563A (en) * 1957-04-16 1962-07-10 Aerpat Ag Turbine rotor mounting
US2999668A (en) * 1958-08-28 1961-09-12 Curtiss Wright Corp Self-balanced rotor blade
GB868903A (en) * 1959-10-13 1961-05-25 Westinghouse Electric Corp Improvements in or relating to bladed rotor structures for turbines and compressors
US3554668A (en) * 1969-05-12 1971-01-12 Gen Motors Corp Turbomachine rotor
JPS50139205A (it) * 1974-04-26 1975-11-07

Also Published As

Publication number Publication date
US4135849A (en) 1979-01-23
JPS5392008A (en) 1978-08-12

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19941221