EP1515001A3 - Blade to blade connection in a turbomachine - Google Patents

Blade to blade connection in a turbomachine Download PDF

Info

Publication number
EP1515001A3
EP1515001A3 EP04104236A EP04104236A EP1515001A3 EP 1515001 A3 EP1515001 A3 EP 1515001A3 EP 04104236 A EP04104236 A EP 04104236A EP 04104236 A EP04104236 A EP 04104236A EP 1515001 A3 EP1515001 A3 EP 1515001A3
Authority
EP
European Patent Office
Prior art keywords
blade
pressure body
ball portion
flat
turbomachine
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.)
Granted
Application number
EP04104236A
Other languages
German (de)
French (fr)
Other versions
EP1515001B1 (en
EP1515001A2 (en
Inventor
Eduard GÖTZFRIED
Heinz-Dieter Tremmel
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.)
General Electric Technology GmbH
Original Assignee
Alstom Technology 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 Alstom Technology AG filed Critical Alstom Technology AG
Publication of EP1515001A2 publication Critical patent/EP1515001A2/en
Publication of EP1515001A3 publication Critical patent/EP1515001A3/en
Application granted granted Critical
Publication of EP1515001B1 publication Critical patent/EP1515001B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2250/00—Geometry
    • F05D2250/20—Three-dimensional
    • F05D2250/23—Three-dimensional prismatic
    • F05D2250/232—Three-dimensional prismatic conical
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2250/00—Geometry
    • F05D2250/20—Three-dimensional
    • F05D2250/24—Three-dimensional ellipsoidal
    • F05D2250/241—Three-dimensional ellipsoidal spherical
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/96—Preventing, counteracting or reducing vibration or noise

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

Die vorliegende Erfindung betrifft eine Bindung von Laufschaufeln einer Turbomaschine, umfassend Ansätze (2), die sich in Umfangsrichtung (3) erstrecken, paarweise mit einer Laufschaufel starr verbunden sind und sich jeweils über einen Druckkörper (7) am benachbarten Ansatz (2) abstützen. Jeder Druckkörper (7) weist an einer Halteseite (8) eine Haltekontur (10) auf, die in eine Aufnahme (11) des zugehörigen Ansatzes (2) hineinragt und sich darin abstützt. Jeder Druckkörper (7) weist an einer Stützseite (9) eine ebene Stützfläche (13) auf, die sich an einer ebenen Gegenstützfläche (14) des benachbarten Ansatzes (2) flächig abstützt.The present invention relates to a binding of blades of a turbomachine comprising lugs (2) which extend in the circumferential direction (3), are rigidly connected in pairs with a blade and each supported via a pressure body (7) on the adjacent projection (2). Each pressure body (7) has on a holding side (8) on a holding contour (10) which projects into a receptacle (11) of the associated projection (2) and is supported therein. Each pressure body (7) has on a support side (9) on a flat support surface (13), which is supported flat on a flat counter-support surface (14) of the adjacent approach (2).

Um die Abstützung auch bei unterschiedlichen Drehwinkeln der Ansätze (2) zu verbessern, ist die Haltekontur (10) des Druckkörpers (7) als Kugelabschnitt ausgebildet. Die zugehörige Aufnahme (11) ist ebenfalls als Kugelabschnitt ausgebildet, deren Radius (R) gleich groß ist wie der Radius (R) des Kugelabschnitts der Haltekontur (10).

Figure imgaf001
In order to improve the support even with different angles of rotation of the lugs (2), the holding contour (10) of the pressure body (7) is formed as a ball portion. The associated receptacle (11) is also formed as a ball portion whose radius (R) is equal to the radius (R) of the ball portion of the retaining contour (10).
Figure imgaf001
EP04104236.7A 2003-09-12 2004-09-02 Blade to blade connection in a turbomachine Not-in-force EP1515001B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10342207A DE10342207A1 (en) 2003-09-12 2003-09-12 Blade binding of a turbomachine
DE10342207 2003-09-12

Publications (3)

Publication Number Publication Date
EP1515001A2 EP1515001A2 (en) 2005-03-16
EP1515001A3 true EP1515001A3 (en) 2012-07-04
EP1515001B1 EP1515001B1 (en) 2016-11-09

Family

ID=34129785

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04104236.7A Not-in-force EP1515001B1 (en) 2003-09-12 2004-09-02 Blade to blade connection in a turbomachine

Country Status (6)

Country Link
US (1) US7140841B2 (en)
EP (1) EP1515001B1 (en)
JP (1) JP2005090506A (en)
CN (1) CN100374688C (en)
DE (1) DE10342207A1 (en)
ZA (1) ZA200407296B (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2436597A (en) * 2006-03-27 2007-10-03 Alstom Technology Ltd Turbine blade and diaphragm
US20090202344A1 (en) * 2008-02-13 2009-08-13 General Electric Company Rotating assembly for a turbomachine
EP2116693A1 (en) * 2008-05-07 2009-11-11 Siemens Aktiengesellschaft Rotor for a turbomachine
EP2213837A1 (en) * 2009-01-29 2010-08-04 Siemens Aktiengesellschaft Turbine blade system
JP5491325B2 (en) * 2010-08-26 2014-05-14 三菱重工業株式会社 Rotor blade and rotating machine
US10047609B2 (en) * 2012-09-25 2018-08-14 United Technologies Corporation Airfoil array with airfoils that differ in geometry according to geometry classes
US10465531B2 (en) 2013-02-21 2019-11-05 General Electric Company Turbine blade tip shroud and mid-span snubber with compound contact angle
US9464530B2 (en) 2014-02-20 2016-10-11 General Electric Company Turbine bucket and method for balancing a tip shroud of a turbine bucket
JP5836410B2 (en) * 2014-02-27 2015-12-24 三菱重工業株式会社 Rotor blade and rotating machine
EP3085890B1 (en) * 2015-04-22 2017-12-27 Ansaldo Energia Switzerland AG Blade with tip shroud
FR3137121B1 (en) * 2022-06-22 2024-06-21 Safran Aircraft Engines Bladed assembly with inter-platform connection by interposed rolling element

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2283901A (en) * 1940-03-16 1942-05-26 Westinghouse Electric & Mfg Co Turbine blading
US4257743A (en) * 1978-03-24 1981-03-24 Tokyo Shibaura Denki Kabushiki Kaisha Coupling devices of moving blades of steam turbines
DE3211073A1 (en) * 1982-03-25 1983-10-06 Kraftwerk Union Ag DEVICE FOR VIBRATION DAMPING ON A LEAD Vane
JPS6149103A (en) * 1984-08-16 1986-03-11 Toshiba Corp Turbine rotor blade linking equipment
EP0202531A1 (en) * 1985-05-14 1986-11-26 Man Gutehoffnungshütte Gmbh Blade-to-blade connection for the rotor of a turbo machine
JPS63132801U (en) * 1987-02-20 1988-08-30
JPH01152003U (en) * 1988-04-12 1989-10-19
WO2003014529A1 (en) * 2001-08-03 2003-02-20 Hitachi, Ltd. Turbine moving vane

Family Cites Families (4)

* 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
JPS5632441B2 (en) * 1973-11-30 1981-07-28
JPS572405A (en) * 1980-06-05 1982-01-07 Hitachi Ltd Rotary blade connector of axial-flow rotary machine
US4407634A (en) * 1981-09-08 1983-10-04 Northern Engineering Industries Plc Axial-flow steam turbine wheel

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2283901A (en) * 1940-03-16 1942-05-26 Westinghouse Electric & Mfg Co Turbine blading
US4257743A (en) * 1978-03-24 1981-03-24 Tokyo Shibaura Denki Kabushiki Kaisha Coupling devices of moving blades of steam turbines
DE3211073A1 (en) * 1982-03-25 1983-10-06 Kraftwerk Union Ag DEVICE FOR VIBRATION DAMPING ON A LEAD Vane
JPS6149103A (en) * 1984-08-16 1986-03-11 Toshiba Corp Turbine rotor blade linking equipment
EP0202531A1 (en) * 1985-05-14 1986-11-26 Man Gutehoffnungshütte Gmbh Blade-to-blade connection for the rotor of a turbo machine
JPS63132801U (en) * 1987-02-20 1988-08-30
JPH01152003U (en) * 1988-04-12 1989-10-19
WO2003014529A1 (en) * 2001-08-03 2003-02-20 Hitachi, Ltd. Turbine moving vane

Also Published As

Publication number Publication date
EP1515001B1 (en) 2016-11-09
US7140841B2 (en) 2006-11-28
CN100374688C (en) 2008-03-12
CN1594841A (en) 2005-03-16
JP2005090506A (en) 2005-04-07
ZA200407296B (en) 2005-08-31
EP1515001A2 (en) 2005-03-16
DE10342207A1 (en) 2005-04-07
US20050111983A1 (en) 2005-05-26

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