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 PDFInfo
- 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
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
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).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009052314.6 | 2009-11-07 | ||
DE200910052314 DE102009052314A1 (en) | 2009-11-07 | 2009-11-07 | Sealing arrangement for a gas turbine and such a gas turbine |
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 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)
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 |
ES2700788T3 (en) * | 2012-04-04 | 2019-02-19 | MTU Aero Engines AG | Sealing system for a turbomachine |
EP2647796A1 (en) * | 2012-04-04 | 2013-10-09 | MTU Aero Engines GmbH | Seal system for a turbo engine |
US9133712B2 (en) | 2012-04-24 | 2015-09-15 | United Technologies Corporation | Blade having porous, abradable element |
Citations (10)
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 flow turbine stage and axial flow turbine |
EP2096262A1 (en) * | 2008-02-26 | 2009-09-02 | Siemens Aktiengesellschaft | Axial flow turbine with low shroud leakage losses |
Family Cites Families (7)
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 flow 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 |
DE59810557D1 (en) * | 1998-11-10 | 2004-02-12 | Alstom Switzerland Ltd | Tip seal for turbine blades |
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 |
-
2009
- 2009-11-07 DE DE200910052314 patent/DE102009052314A1/en not_active Withdrawn
-
2010
- 2010-10-30 WO PCT/DE2010/001279 patent/WO2011054341A2/en active Application Filing
Patent Citations (10)
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 flow turbine stage and axial flow 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 |
---|---|
WO2011054341A2 (en) | 2011-05-12 |
DE102009052314A1 (en) | 2011-05-12 |
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