EP1898050A3 - Dämpfungs- und Dichtungssystem für Turbinenschaufeln - Google Patents

Dämpfungs- und Dichtungssystem für Turbinenschaufeln Download PDF

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Publication number
EP1898050A3
EP1898050A3 EP07112566A EP07112566A EP1898050A3 EP 1898050 A3 EP1898050 A3 EP 1898050A3 EP 07112566 A EP07112566 A EP 07112566A EP 07112566 A EP07112566 A EP 07112566A EP 1898050 A3 EP1898050 A3 EP 1898050A3
Authority
EP
European Patent Office
Prior art keywords
turbine blades
attenuation
sealing system
damping
sealing
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
EP07112566A
Other languages
English (en)
French (fr)
Other versions
EP1898050B1 (de
EP1898050A2 (de
Inventor
Richard Whitton
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.)
Rolls Royce Deutschland Ltd and Co KG
Original Assignee
Rolls Royce Deutschland Ltd and Co KG
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 Rolls Royce Deutschland Ltd and Co KG filed Critical Rolls Royce Deutschland Ltd and Co KG
Publication of EP1898050A2 publication Critical patent/EP1898050A2/de
Publication of EP1898050A3 publication Critical patent/EP1898050A3/de
Application granted granted Critical
Publication of EP1898050B1 publication Critical patent/EP1898050B1/de
Ceased 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
    • 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
    • F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
    • F01D11/005—Sealing means between non relatively rotating elements
    • F01D11/006—Sealing the gap between rotor blades or blades and rotor
    • F01D11/008—Sealing the gap between rotor blades or blades and rotor by spacer elements between the blades, e.g. independent interblade platforms
    • 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
    • F05D2240/00—Components
    • F05D2240/80—Platforms for stationary or moving blades
    • 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
    • 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
    • F05D2250/70—Shape
    • F05D2250/71—Shape curved

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

Bei einem Gasturbinentriebwerk ist das zwischen zwei benachbarten Plattformen (6a, 6b) der an einer Rotorscheibe angebrachten Turbinenschaufeln lose gehaltene Dichtungs- und Dämpfungselement (9) in Form eines geraden Prismas mit einer einem gleichseitigen Dreieck entsprechenden Grundfläche, jedoch mit konvex gewölbten Reibflächen (14), ausgebildet. Aufgrund der während des Betriebs durch die Wölbung möglichen kleinen Schwenkbewegungen wird ein vorher bestimmbarer, an die Schaufelgeometrie angepasster, vergrößerter Reib- und Verschleißbereich geschaffen und damit die Dämpfungs- und Dichtwirkung erhöht.
EP07112566A 2006-09-01 2007-07-16 Dämpfungs- und Dichtungssystem für Turbinenschaufeln Ceased EP1898050B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006041322A DE102006041322A1 (de) 2006-09-01 2006-09-01 Dämpfungs- und Dichtungssystem für Turbinenschaufeln

Publications (3)

Publication Number Publication Date
EP1898050A2 EP1898050A2 (de) 2008-03-12
EP1898050A3 true EP1898050A3 (de) 2010-07-07
EP1898050B1 EP1898050B1 (de) 2011-09-07

Family

ID=38969468

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07112566A Ceased EP1898050B1 (de) 2006-09-01 2007-07-16 Dämpfungs- und Dichtungssystem für Turbinenschaufeln

Country Status (3)

Country Link
US (1) US20090136350A1 (de)
EP (1) EP1898050B1 (de)
DE (1) DE102006041322A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9045992B2 (en) 2010-06-28 2015-06-02 Herakles Turbomachine blades or vanes having complementary even/odd geometry
FR2961845B1 (fr) * 2010-06-28 2013-06-28 Snecma Propulsion Solide Aube de turbomachine a geometrie complementaire paire/impaire et son procede de fabrication
DE102010052965B4 (de) 2010-11-30 2014-06-12 MTU Aero Engines AG Dämpfungsmittel zum Dämpfen einer Schaufelbewegung einer Turbomaschine
US9810075B2 (en) 2015-03-20 2017-11-07 United Technologies Corporation Faceted turbine blade damper-seal

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4182598A (en) * 1977-08-29 1980-01-08 United Technologies Corporation Turbine blade damper
US4872812A (en) * 1987-08-05 1989-10-10 General Electric Company Turbine blade plateform sealing and vibration damping apparatus
EP0509838A1 (de) * 1991-04-19 1992-10-21 General Electric Company Vibrationsdämpfung von Gasturbinenschaufeln
EP1477634A2 (de) * 2003-05-13 2004-11-17 General Electric Company Schwingungsdämpfer für Turbinenschaufeln
US20050186074A1 (en) * 2004-02-23 2005-08-25 Mitsubishi Heavy Industries, Ltd. Moving blade and gas turbine using the same

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1549152A (en) * 1977-01-11 1979-08-01 Rolls Royce Rotor stage for a gas trubine engine
US4537024A (en) * 1979-04-23 1985-08-27 Solar Turbines, Incorporated Turbine engines
US5226784A (en) * 1991-02-11 1993-07-13 General Electric Company Blade damper
GB9609721D0 (en) * 1996-05-09 1996-07-10 Rolls Royce Plc Vibration damping
US5749705A (en) * 1996-10-11 1998-05-12 General Electric Company Retention system for bar-type damper of rotor blade
JP3462695B2 (ja) * 1997-03-12 2003-11-05 三菱重工業株式会社 ガスタービン動翼シール板
JP2002544431A (ja) * 1999-05-12 2002-12-24 シーメンス アクチエンゲゼルシヤフト 特にタービンにおける隙間を塞ぐパッキンおよびタービン
DE10014198A1 (de) * 2000-03-22 2001-09-27 Alstom Power Nv Beschaufelung mit Dämpfungselementen
DE10022244A1 (de) * 2000-05-08 2001-11-15 Alstom Power Nv Schaufelanordnung mit Dämpfungselementen
US7534090B2 (en) * 2006-06-13 2009-05-19 General Electric Company Enhanced bucket vibration system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4182598A (en) * 1977-08-29 1980-01-08 United Technologies Corporation Turbine blade damper
US4872812A (en) * 1987-08-05 1989-10-10 General Electric Company Turbine blade plateform sealing and vibration damping apparatus
EP0509838A1 (de) * 1991-04-19 1992-10-21 General Electric Company Vibrationsdämpfung von Gasturbinenschaufeln
EP1477634A2 (de) * 2003-05-13 2004-11-17 General Electric Company Schwingungsdämpfer für Turbinenschaufeln
US20050186074A1 (en) * 2004-02-23 2005-08-25 Mitsubishi Heavy Industries, Ltd. Moving blade and gas turbine using the same

Also Published As

Publication number Publication date
DE102006041322A1 (de) 2008-04-24
US20090136350A1 (en) 2009-05-28
EP1898050B1 (de) 2011-09-07
EP1898050A2 (de) 2008-03-12

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