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WO2011054341A3 - Sealing arrangement for a gas turbine and such a gas turbine - Google Patents

Sealing arrangement for a gas turbine and such a gas turbine Download PDF

Info

Publication number
WO2011054341A3
WO2011054341A3 PCT/DE2010/001279 DE2010001279W WO2011054341A3 WO 2011054341 A3 WO2011054341 A3 WO 2011054341A3 DE 2010001279 W DE2010001279 W DE 2010001279W WO 2011054341 A3 WO2011054341 A3 WO 2011054341A3
Authority
WO
WIPO (PCT)
Prior art keywords
gas turbine
sealing arrangement
sealing element
blade row
annular space
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.)
Ceased
Application number
PCT/DE2010/001279
Other languages
German (de)
French (fr)
Other versions
WO2011054341A2 (en
Inventor
Inga Mahle
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.)
MTU Aero Engines AG
Original Assignee
MTU Aero Engines GmbH
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 MTU Aero Engines GmbH filed Critical MTU Aero Engines GmbH
Publication of WO2011054341A2 publication Critical patent/WO2011054341A2/en
Publication of WO2011054341A3 publication Critical patent/WO2011054341A3/en
Anticipated expiration legal-status Critical
Ceased 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
    • F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
    • F01D11/08—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator
    • 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
    • F01D11/02—Preventing or minimising internal leakage of working-fluid, e.g. between stages by non-contact sealings, e.g. of labyrinth type
    • 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
    • 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
    • F05D2240/10—Stators
    • F05D2240/11—Shroud seal segments
    • 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
    • F05D2240/55—Seals

Landscapes

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

Abstract

The invention relates to a sealing arrangement (6) for a gas turbine, in particular for an aircraft gas turbine (1), comprising at least one sealing element (8a, 8b), wherein the sealing element (8a, 8b) is arranged in an annular space (12) between a housing (14) and at least one blade row (4), in particular a rotor blade row, and wherein a leakage flow (16) flows through the annular space (12), which leakage flow has branched off from a main flow (18) and leads back into the main flow (18) at a reentry point (20) after the annular space (12), wherein the at least one sealing element (8b) is associated with the housing (14) and extends in the direction of the blade row (4), and a leakage point (22) is arranged between the sealing element (8b) and the blade row (4) in the area of the reentry point (20) of the leakage flow (16) into the main flow (18). The invention further relates to a gas turbine, in particular an aircraft gas turbine (1), having such a sealing arrangement (6).
PCT/DE2010/001279 2009-11-07 2010-10-30 Sealing arrangement for a gas turbine and such a gas turbine Ceased WO2011054341A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200910052314 DE102009052314A1 (en) 2009-11-07 2009-11-07 Sealing arrangement for a gas turbine and such a gas turbine
DE102009052314.6 2009-11-07

Publications (2)

Publication Number Publication Date
WO2011054341A2 WO2011054341A2 (en) 2011-05-12
WO2011054341A3 true WO2011054341A3 (en) 2011-07-07

Family

ID=43807140

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2010/001279 Ceased WO2011054341A2 (en) 2009-11-07 2010-10-30 Sealing arrangement for a gas turbine and such a gas turbine

Country Status (2)

Country Link
DE (1) DE102009052314A1 (en)
WO (1) WO2011054341A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5709447B2 (en) * 2010-09-28 2015-04-30 三菱日立パワーシステムズ株式会社 Turbine
JP5517910B2 (en) 2010-12-22 2014-06-11 三菱重工業株式会社 Turbine and seal structure
EP2647796A1 (en) * 2012-04-04 2013-10-09 MTU Aero Engines GmbH Seal system for a turbo engine
EP2647795B1 (en) * 2012-04-04 2018-11-07 MTU Aero Engines AG Seal system for a turbo engine
US9133712B2 (en) 2012-04-24 2015-09-15 United Technologies Corporation Blade having porous, abradable element

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2462465A1 (en) * 1974-03-21 1977-04-28 Maschf Augsburg Nuernberg Ag Dynamic stabilisation for high speed turbo compressor rotor - has circumferential oscillation affecting component of flow in tip gap varied using annular flow guides
FR2362271A1 (en) * 1976-08-17 1978-03-17 Bbc Brown Boveri & Cie SEALING AND CUSHIONING ELEMENT FOR TURBOMACHINE BLADES
JPS59115403A (en) * 1982-12-23 1984-07-03 Toshiba Corp Shroude
EP0799973A1 (en) * 1996-04-01 1997-10-08 Asea Brown Boveri Ag Wall contour for an axial turbomachine
EP0894945A2 (en) * 1997-07-29 1999-02-03 Siemens Aktiengesellschaft Turbine and turbine blading
DE19738671A1 (en) * 1997-09-04 1999-03-11 Abb Research Ltd Seal between rotary and stationary components e.g. in axial flow steam turbines
EP0903468A1 (en) * 1997-09-19 1999-03-24 Asea Brown Boveri AG Shroud for an axial turbine
US6331006B1 (en) * 2000-01-25 2001-12-18 General Electric Company Brush seal mounting in supporting groove using flat spring with bifurcated end
JP2007321721A (en) * 2006-06-05 2007-12-13 Toshiba Corp Axial turbine stage and axial turbine
EP2096262A1 (en) * 2008-02-26 2009-09-02 Siemens Aktiengesellschaft Axial flow turbine with low shroud leakage losses

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2413655C3 (en) * 1974-03-21 1978-05-03 Maschinenfabrik Augsburg-Nuernberg Ag, 8500 Nuernberg Device for dynamic stabilization of the rotor of a gas or steam turbine
JPH10311205A (en) * 1997-05-14 1998-11-24 Toshiba Corp Axial turbine
DE19807247C2 (en) 1998-02-20 2000-04-20 Mtu Muenchen Gmbh Turbomachine with rotor and stator
EP0982475A1 (en) * 1998-08-28 2000-03-01 Asea Brown Boveri AG Axial flow turbomachine with shrouded blading
EP1001139B1 (en) * 1998-11-10 2004-01-07 ALSTOM (Switzerland) Ltd Turbine blade tip sealing
EP1001138B1 (en) * 1998-11-10 2003-06-11 ALSTOM (Switzerland) Ltd Turbine blade tip sealing
US6896482B2 (en) * 2003-09-03 2005-05-24 General Electric Company Expanding sealing strips for steam turbines

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2462465A1 (en) * 1974-03-21 1977-04-28 Maschf Augsburg Nuernberg Ag Dynamic stabilisation for high speed turbo compressor rotor - has circumferential oscillation affecting component of flow in tip gap varied using annular flow guides
FR2362271A1 (en) * 1976-08-17 1978-03-17 Bbc Brown Boveri & Cie SEALING AND CUSHIONING ELEMENT FOR TURBOMACHINE BLADES
JPS59115403A (en) * 1982-12-23 1984-07-03 Toshiba Corp Shroude
EP0799973A1 (en) * 1996-04-01 1997-10-08 Asea Brown Boveri Ag Wall contour for an axial turbomachine
EP0894945A2 (en) * 1997-07-29 1999-02-03 Siemens Aktiengesellschaft Turbine and turbine blading
DE19738671A1 (en) * 1997-09-04 1999-03-11 Abb Research Ltd Seal between rotary and stationary components e.g. in axial flow steam turbines
EP0903468A1 (en) * 1997-09-19 1999-03-24 Asea Brown Boveri AG Shroud for an axial turbine
US6331006B1 (en) * 2000-01-25 2001-12-18 General Electric Company Brush seal mounting in supporting groove using flat spring with bifurcated end
JP2007321721A (en) * 2006-06-05 2007-12-13 Toshiba Corp Axial turbine stage and axial turbine
EP2096262A1 (en) * 2008-02-26 2009-09-02 Siemens Aktiengesellschaft Axial flow turbine with low shroud leakage losses

Also Published As

Publication number Publication date
DE102009052314A1 (en) 2011-05-12
WO2011054341A2 (en) 2011-05-12

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