EP1512838A3 - Rotor for a steam or gas turbine - Google Patents

Rotor for a steam or gas turbine Download PDF

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Publication number
EP1512838A3
EP1512838A3 EP04018654A EP04018654A EP1512838A3 EP 1512838 A3 EP1512838 A3 EP 1512838A3 EP 04018654 A EP04018654 A EP 04018654A EP 04018654 A EP04018654 A EP 04018654A EP 1512838 A3 EP1512838 A3 EP 1512838A3
Authority
EP
European Patent Office
Prior art keywords
rotor
cavity
section
steam
gas turbine
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.)
Withdrawn
Application number
EP04018654A
Other languages
German (de)
French (fr)
Other versions
EP1512838A2 (en
Inventor
Hans-Otto Dr Jeske
Günter Dr. Neumann
Hans-Egon Brock
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.)
MAN Energy Solutions SE
Original Assignee
MAN Turbo AG
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 MAN Turbo AG filed Critical MAN Turbo AG
Publication of EP1512838A2 publication Critical patent/EP1512838A2/en
Publication of EP1512838A3 publication Critical patent/EP1512838A3/en
Withdrawn legal-status Critical Current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
    • F01D5/22—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)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

Der Rotor einer Dampf- oder Gasturbine ist mit Laufschaufeln bestückt, die in mehreren radialen Reihen in dem Rotor (6) gehalten sind und die jeweils aus einem in den Rotor (6) eingebauten Schaufelfuß 1, einem Schaufelblatt (2) und einer Deckplatte (3) bestehen. In den einander gegenüber stehenden Neigungsflächen der Deckplatten (3) einer Reihe von Laufschaufeln ist eine offene Tasche (5) eingebracht. Die Taschen (5) zweier benachbarter Deckplatten (3) bilden zusammen einen im wesentlichen geschlossenen Hohlraum, der sich in radialer Richtung des Rotors (6) erweitert. In jeden Hohlraum ist ein Stift (4) frei beweglich eingelegt, dessen größter Querschnitt kleiner als der größte Querschnitt des Hohlraumes aber größer ist als der kleinste Querschnitt des Hohlraumes.

Figure imgaf001
The rotor of a steam or gas turbine is equipped with blades which are held in a plurality of radial rows in the rotor (6) and each of a built into the rotor (6) blade root 1, an airfoil (2) and a cover plate (3 ) consist. In the opposite inclined surfaces of the cover plates (3) of a series of blades an open pocket (5) is introduced. The pockets (5) of two adjacent cover plates (3) together form a substantially closed cavity, which widens in the radial direction of the rotor (6). In each cavity, a pin (4) is freely movably inserted, the largest cross section is smaller than the largest cross section of the cavity but larger than the smallest cross section of the cavity.
Figure imgaf001
EP04018654A 2003-09-02 2004-08-06 Rotor for a steam or gas turbine Withdrawn EP1512838A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10340773A DE10340773A1 (en) 2003-09-02 2003-09-02 Rotor of a steam or gas turbine
DE10340773 2003-09-02

Publications (2)

Publication Number Publication Date
EP1512838A2 EP1512838A2 (en) 2005-03-09
EP1512838A3 true EP1512838A3 (en) 2006-07-19

Family

ID=34129641

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04018654A Withdrawn EP1512838A3 (en) 2003-09-02 2004-08-06 Rotor for a steam or gas turbine

Country Status (5)

Country Link
US (1) US7104758B2 (en)
EP (1) EP1512838A3 (en)
JP (1) JP2005076638A (en)
DE (1) DE10340773A1 (en)
RU (1) RU2347913C2 (en)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1557534A1 (en) * 2004-01-20 2005-07-27 Siemens Aktiengesellschaft Turbine blade and gas turbine with such a turbine blade
DE102005030516A1 (en) * 2005-06-28 2007-01-04 Man Turbo Ag Rotor for a turbine and method and apparatus for producing the rotor
EP1944466A1 (en) * 2007-01-10 2008-07-16 Siemens Aktiengesellschaft Coupling of two rotor blades
GB2449493B (en) * 2007-05-25 2009-08-12 Rolls Royce Plc Vibration damper assembly
KR101120578B1 (en) * 2007-09-11 2012-03-09 가부시키가이샤 히타치세이사쿠쇼 Steam turbine moving blade assembly
DE102008031780A1 (en) * 2008-07-04 2010-01-07 Man Turbo Ag Blade and turbomachine with blade
US8137072B2 (en) * 2008-10-31 2012-03-20 Solar Turbines Inc. Turbine blade including a seal pocket
US8393869B2 (en) 2008-12-19 2013-03-12 Solar Turbines Inc. Turbine blade assembly including a damper
DE102009013348A1 (en) * 2009-03-16 2010-09-23 Man Turbo Ag Device and method for connecting a blade to a rotor shaft of a turbomachine
DE102009048957C5 (en) 2009-10-10 2014-01-09 Mtu Aero Engines Gmbh A method of fusion welding a single crystal workpiece with a polycrystalline workpiece and rotor
US8834123B2 (en) * 2009-12-29 2014-09-16 Rolls-Royce Corporation Turbomachinery component
FR2963381B1 (en) * 2010-07-27 2015-04-10 Snecma INTER-AUB SEALING FOR A TURBINE OR TURBOMACHINE COMPRESSOR WHEEL
US8790086B2 (en) * 2010-11-11 2014-07-29 General Electric Company Turbine blade assembly for retaining sealing and dampening elements
DE102010052965B4 (en) 2010-11-30 2014-06-12 MTU Aero Engines AG Damping means for damping a blade movement of a turbomachine
US8851853B2 (en) * 2011-05-26 2014-10-07 United Technologies Corporation Hybrid rotor disk assembly for a gas turbine engine
US8936440B2 (en) 2011-05-26 2015-01-20 United Technologies Corporation Hybrid rotor disk assembly with ceramic matrix composites platform for a gas turbine engine
US8834125B2 (en) 2011-05-26 2014-09-16 United Technologies Corporation Hybrid rotor disk assembly with a ceramic matrix composite airfoil for a gas turbine engine
JP2012251503A (en) 2011-06-03 2012-12-20 Hitachi Ltd Steam turbine
EP2690254B1 (en) 2012-07-27 2017-04-26 General Electric Technology GmbH Turbine rotor blade root attachments
ITCO20130004A1 (en) * 2013-02-20 2014-08-21 Nuovo Pignone Srl METHOD TO REALIZE A IMPELLER FROM SECTOR SEGMENTS
EP2803821A1 (en) * 2013-05-13 2014-11-19 Siemens Aktiengesellschaft Blade device, blade system, and corresponding method of manufacturing a blade system
JP2017502187A (en) 2013-09-26 2017-01-19 フランコ トシ メカニカ エス．ピー．エー． Rotor stage of axial turbine with adaptive control to dynamic stress
DE102014214271A1 (en) * 2014-07-22 2016-01-28 MTU Aero Engines AG A blade
EP3009608B1 (en) 2014-10-02 2019-10-30 United Technologies Corporation Vane assembly with trapped segmented vane structures
EP3438410B1 (en) 2017-08-01 2021-09-29 General Electric Company Sealing system for a rotary machine
JP6991912B2 (en) * 2018-03-28 2022-01-13 三菱重工業株式会社 Rotating machine
US11536144B2 (en) * 2020-09-30 2022-12-27 General Electric Company Rotor blade damping structures
FR3137127B1 (en) * 2022-06-22 2024-07-12 Safran Aircraft Engines Bladed turbomachine assembly comprising means of limiting vibrations between platforms

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB532372A (en) * 1938-08-27 1941-01-22 British Thomson Houston Co Ltd Improvements in and relating to elastic fluid turbines
US2310412A (en) * 1941-03-08 1943-02-09 Westinghouse Electric & Mfg Co Vibration dampener
US2430140A (en) * 1945-04-06 1947-11-04 Northrop Hendy Company Turbine blade and mounting
DE1005084B (en) * 1955-09-27 1957-03-28 Siemens Ag Binding of turbine blades
CH418360A (en) * 1962-11-21 1966-08-15 Ass Elect Ind Turbo engine
US3752599A (en) * 1971-03-29 1973-08-14 Gen Electric Bucket vibration damping device
JPS5776208A (en) * 1980-10-30 1982-05-13 Toshiba Corp Turbine vane
JPS58176402A (en) * 1982-04-10 1983-10-15 Toshiba Corp Vibration damping device for turbine moving blade
US4784571A (en) * 1987-02-09 1988-11-15 Westinghouse Electric Corp. Apparatus and method for reducing blade flop in steam turbine
JPH0586803A (en) * 1991-09-25 1993-04-06 Mitsubishi Heavy Ind Ltd Triple pin bucket
JP2000204901A (en) * 1999-01-08 2000-07-25 Mitsubishi Heavy Ind Ltd Damping structure of rotor blade in axial flow rotating machine
US20010038793A1 (en) * 2000-05-08 2001-11-08 Herbert Brandl Blade arrangement with damping elements

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2942843A (en) * 1956-06-15 1960-06-28 Westinghouse Electric Corp Blade vibration damping structure
GB1460714A (en) * 1973-06-26 1977-01-06 Rolls Royce Bladed rotor for a gas turbine engine
US4267895A (en) 1979-05-10 1981-05-19 The Budd Company Automotive body frame for a combined engine and battery operated vehicle
JPS5776020A (en) 1980-10-30 1982-05-12 Mitsubishi Chem Ind Ltd Preparation of cured article
US5156528A (en) * 1991-04-19 1992-10-20 General Electric Company Vibration damping of gas turbine engine buckets
JPH06221102A (en) * 1993-01-25 1994-08-09 Mitsubishi Heavy Ind Ltd Rotor blade shroud

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB532372A (en) * 1938-08-27 1941-01-22 British Thomson Houston Co Ltd Improvements in and relating to elastic fluid turbines
US2310412A (en) * 1941-03-08 1943-02-09 Westinghouse Electric & Mfg Co Vibration dampener
US2430140A (en) * 1945-04-06 1947-11-04 Northrop Hendy Company Turbine blade and mounting
DE1005084B (en) * 1955-09-27 1957-03-28 Siemens Ag Binding of turbine blades
CH418360A (en) * 1962-11-21 1966-08-15 Ass Elect Ind Turbo engine
US3752599A (en) * 1971-03-29 1973-08-14 Gen Electric Bucket vibration damping device
JPS5776208A (en) * 1980-10-30 1982-05-13 Toshiba Corp Turbine vane
JPS58176402A (en) * 1982-04-10 1983-10-15 Toshiba Corp Vibration damping device for turbine moving blade
US4784571A (en) * 1987-02-09 1988-11-15 Westinghouse Electric Corp. Apparatus and method for reducing blade flop in steam turbine
JPH0586803A (en) * 1991-09-25 1993-04-06 Mitsubishi Heavy Ind Ltd Triple pin bucket
JP2000204901A (en) * 1999-01-08 2000-07-25 Mitsubishi Heavy Ind Ltd Damping structure of rotor blade in axial flow rotating machine
US20010038793A1 (en) * 2000-05-08 2001-11-08 Herbert Brandl Blade arrangement with damping elements

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 006, no. 161 (M - 151) 24 August 1982 (1982-08-24) *
PATENT ABSTRACTS OF JAPAN vol. 008, no. 016 (M - 270) 24 January 1984 (1984-01-24) *
PATENT ABSTRACTS OF JAPAN vol. 017, no. 423 (M - 1458) 6 August 1993 (1993-08-06) *
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 10 17 November 2000 (2000-11-17) *

Also Published As

Publication number Publication date
RU2347913C2 (en) 2009-02-27
DE10340773A1 (en) 2005-03-24
EP1512838A2 (en) 2005-03-09
US20050047917A1 (en) 2005-03-03
US7104758B2 (en) 2006-09-12
JP2005076638A (en) 2005-03-24
RU2004126590A (en) 2006-02-10

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