EP1714006A1 - Dämpfungsanordnung für leitschaufeln - Google Patents
Dämpfungsanordnung für leitschaufelnInfo
- Publication number
- EP1714006A1 EP1714006A1 EP05714933A EP05714933A EP1714006A1 EP 1714006 A1 EP1714006 A1 EP 1714006A1 EP 05714933 A EP05714933 A EP 05714933A EP 05714933 A EP05714933 A EP 05714933A EP 1714006 A1 EP1714006 A1 EP 1714006A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- guide vanes
- damping arrangement
- designed
- leaf spring
- spring element
- 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
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
- F01D5/26—Antivibration means not restricted to blade form or construction or to blade-to-blade connections or to the use of particular materials
-
- 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
- F01D11/001—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between stator blade and rotor
-
- 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
- F01D9/00—Stators
- F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
- F01D9/04—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector
- F01D9/042—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector fixing blades to stators
-
- 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
- F05D2240/70—Slinger plates or washers
-
- 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
- F05D2260/00—Function
- F05D2260/96—Preventing, counteracting or reducing vibration or noise
Definitions
- the invention relates to a damping arrangement for guide blades, in particular for guide blades of a gas turbine or an aircraft engine, according to the preamble of claim 1.
- Gas turbines consist of several assemblies, for example a fan, a combustion chamber, preferably several compressors and several turbines.
- the preferably several turbines are, in particular, a high-pressure turbine and a low-pressure turbine, and the several compressors are in particular a high-pressure compressor and a low-pressure compressor.
- a plurality of guide vane rings are positioned one behind the other in a turbine and a compressor of a gas turbine in the axial direction or in the flow direction of the gas turbine, each guide vane ring having a plurality of guide vanes which are arranged distributed over the circumference.
- a rotor blade ring which has a plurality of rotor blades, is positioned between each two adjacent guide vane rings. The rotor blades are assigned to a rotor and rotate together with the rotor with respect to a fixed housing and also the guide vanes of the guide vane rings, which are also designed to be stationary.
- the guide vanes of compressors of a gas turbine are subject to high stressing vibrations during their operation, so that the guide vanes must be damped to avoid damage to them.
- C-shaped springs are used which have a relatively large radial height. This increases the radial dimension of the gas turbine.
- the manufacture of the spring elements known from the prior art is comparatively complex, and due to the bending processes required in the manufacture thereof, they are also subject to tolerances. Overall, this is a disadvantage.
- the present invention is based on the problem of creating a novel damping arrangement for guide vanes, in particular for guide vanes of a gas turbine or an aircraft engine.
- This problem is solved by a damping arrangement according to claim 1.
- the or each spring element is designed as a leaf spring, the or each spring element designed as a leaf spring having a small radial extension.
- leaf springs as spring elements.
- the leaf springs are clamped between the inner shroud of the guide vanes and the or each seal carrier. This results in a significant reduction in the radial installation space required for damping and thus a significant reduction in the radial dimensions of the gas turbine.
- Such spring elements designed as leaf springs are inexpensive to manufacture and less tolerant than the C-shaped spring elements used in the prior art for damping.
- the or each spring element designed as a leaf spring is preferably clamped between the inner shroud of the guide vanes and the or each seal carrier, the leaf spring resting with a central contact area on the or each seal carrier and with two lateral contact areas on the inner cover band of the guide vanes. It is also possible for the leaf spring to bear on the inner shroud of the guide vanes with the central contact area and on the or each seal carrier with the two lateral contact areas.
- the or each spring element designed as a leaf spring has a plurality of leaf spring sections separated by slots, such a leaf spring section being associated with each inner shroud of each guide vane and abutting the same.
- FIG. 1 shows a damping arrangement for guide vanes of a gas turbine, namely an aircraft engine, according to the prior art
- Fig. 2 shows a damping arrangement for guide blades of a gas turbine, namely an aircraft engine, in the sense of the present invention in an exploded view; and Fig. 3 shows a detail of the damping arrangement of Fig. 2 in the area of the inner shroud of a guide vane in the assembled state.
- FIG. 1 shows a section of a compressor 10 of a gas turbine 11 in the region of two guide vane rings 12 and three moving blade rings 13. In the axial direction or in the direction of flow (arrow 14), alternating guide vane rings 12 and moving vane rings 13 are arranged.
- Each of the guide vane rings 12 is formed from a plurality of guide vanes 15 spaced apart from one another in the circumferential direction.
- the guide vanes 15 of the guide vane rings 12 are fastened with a radially outer end 16 to a housing 17 of the compressor 10.
- the guide vanes 17 of the guide vane rings 12 form an inner shroud 19.
- At least one seal carrier 20 for sealing elements 21 is fastened to the inner shrouds 19 of the guide vanes 15.
- the sealing elements 21 are designed as honeycomb seals which interact with sealing fins 23 assigned to rotor disks 22.
- this spring element 25 is designed as an egg-shaped spring, which causes a relatively large radial height in the area of the inner shroud 19.
- the radial overall height in the area of the inner shroud 19 and the seal carrier 20 is visualized in FIG. 1 by a double arrow 26.
- Such a large radial height in the area of the inner shroud causes a radial height of the entire gas turbine. This is a disadvantage.
- the C-shaped spring elements known from the prior art are subject to tolerances and therefore inaccurate.
- FIG. 2 shows an exploded view of the damping arrangement
- FIG. 3 shows a cross section in the region of the inner shroud of a guide vane through the damping arrangement according to the invention.
- FIG. 2 shows a section of a guide vane ring 27 in the region of four guide vanes 28.
- a radially outer end 29 of the guide vanes 28 is not used to fasten the latter to one in FIG. 2 illustrated housing of the gas turbine.
- a seal carrier 32 for sealing elements 33 can be fastened to the inner shroud 31 of the four guide vanes 28.
- the spring element 34 designed as a leaf spring is positioned in a cavity 35 between the inner shroud 31 and the seal carrier 32. Due to the small radial extent of the spring element 34 designed as a leaf spring, the cavity 35 can also be designed with a low radial height, so that the overall radial height of the gas turbine is reduced.
- the spring element 34 is clamped between the inner shrouds 31 of the guide vanes 28 and the seal carrier 32 in such a way that the spring element 34 has a central bearing area 36 on the seal carrier 32 and with two lateral bearing areas 37 and 38 bears against the inner cover band 31 or is in contact. Accordingly, forces to be damped and caused by vibrations act on the spring element 34 in the sense of the arrows drawn in FIG. 3. It should be noted that the abbreviation F in FIG. 3 stands for force and thus force.
- the spring element 34 can also be clamped exactly the other way round between the inner shrouds 31 of the guide vanes 28 and the seal carrier 32, in such a way that the spring element 34 with the central Au position region 36 on the inner shroud 31 and with the two lateral bearing areas 37 and 38 abuts the seal carrier 32.
- the spring element 34 designed as a leaf spring has a plurality of, in the exemplary embodiment shown four, leaf spring sections 39 which are separated from one another by slots 40.
- Such a leaf spring section 39 is accordingly positioned in the region of each inner shroud 31 of each guide vane 38.
- Each guide vane 28 is accordingly individually damped in the area of the respective inner shroud 31.
- the individual leaf spring sections 39 are separated from one another by two slots 40, each of the two slots 40 extending into the spring element 34 from a different side.
- the slots 40 which run into the spring element 34 from different sides and which separate two adjacent leaf spring separate cuts 39, end at a distance from each other, so that between these two slots 40, a connecting web between two leaf spring sections 39 remains.
- the sealing arrangement according to the invention also has securing elements 41 which extend in the circumferential direction and are arranged between the inner shrouds 31 of the guide vanes 28 and the seal carrier 33.
- the securing elements 41 are designed as securing wires and run laterally in cross-section next to or each spring element 34 designed as a leaf spring.
- the securing elements 41 are guided in corresponding recesses 42 and 43 within the inner shroud 31 and the seal carrier 32.
- the spring element 34 has angled sections 44, which serve as securing tabs and fix the securing elements 41 in their position.
- a structurally particularly advantageous damping arrangement for the guide vanes of a gas turbine is provided.
- the low radial height and the simple manufacture of the spring elements are particularly advantageous.
- the spring elements are designed as a simple, flat sheet metal part. There is therefore no need to bend the manufacture of the or each spring element.
- the spring forces or the deformation of the or each spring element are determined, inter alia, by the contour of the inner shroud of the guide vanes and by the contour of the or each seal carrier.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004006706A DE102004006706A1 (de) | 2004-02-11 | 2004-02-11 | Dämpfungsanordnung für Leifschaufeln |
PCT/DE2005/000182 WO2005078242A1 (de) | 2004-02-11 | 2005-02-04 | Dämpfungsanordnung für leitschaufeln |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1714006A1 true EP1714006A1 (de) | 2006-10-25 |
EP1714006B1 EP1714006B1 (de) | 2014-01-15 |
Family
ID=34801875
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05714933.8A Ceased EP1714006B1 (de) | 2004-02-11 | 2005-02-04 | Dämpfungsanordnung für leitschaufeln |
Country Status (5)
Country | Link |
---|---|
US (1) | US8105016B2 (de) |
EP (1) | EP1714006B1 (de) |
CA (1) | CA2555578A1 (de) |
DE (1) | DE102004006706A1 (de) |
WO (1) | WO2005078242A1 (de) |
Families Citing this family (47)
Publication number | Priority date | Publication date | Assignee | Title |
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US20120195749A1 (en) | 2004-03-15 | 2012-08-02 | Airius Ip Holdings, Llc | Columnar air moving devices, systems and methods |
DE602005021803D1 (de) * | 2005-12-19 | 2010-07-22 | Rolls Royce Plc | Aufbauanordnung einer Gasturbinenleitschaufel |
US7481618B2 (en) | 2005-12-21 | 2009-01-27 | Rolls-Royce Plc | Mounting arrangement |
JP4918263B2 (ja) * | 2006-01-27 | 2012-04-18 | 三菱重工業株式会社 | 軸流圧縮機の静翼環 |
DE102006050907A1 (de) * | 2006-10-28 | 2008-05-15 | Man Turbo Ag | Leitvorrichtung einer Strömungsmaschine sowie Leitschaufel für eine derartige Leitvorrichtung |
DE102007015669A1 (de) * | 2007-03-31 | 2008-10-02 | Mtu Aero Engines Gmbh | Turbomaschine |
DE102007059220A1 (de) | 2007-12-07 | 2009-06-10 | Rolls-Royce Deutschland Ltd & Co Kg | Leitschaufelkranz für thermische Strömungsmaschinen, insbesondere Flugtriebwerke |
DE102008032661A1 (de) * | 2008-07-10 | 2010-01-14 | Mtu Aero Engines Gmbh | Strömungsmaschine |
US8118550B2 (en) * | 2009-03-11 | 2012-02-21 | General Electric Company | Turbine singlet nozzle assembly with radial stop and narrow groove |
EP2414740B1 (de) * | 2009-03-30 | 2018-01-17 | Airius IP Holdings, Llc | Säulenförmige luftbewegungsvorrichtung, systeme und verfahren |
DE102009042029A1 (de) * | 2009-09-17 | 2011-03-24 | Mtu Aero Engines Gmbh | Schaufelkranz für eine Strömungsmaschine |
FR2959527B1 (fr) | 2010-04-28 | 2012-07-20 | Snecma | Piece anti-usure pour echasse d'aube de soufflante de turboreacteur |
US8550776B2 (en) * | 2010-07-28 | 2013-10-08 | General Electric Company | Composite vane mounting |
AU2012271640B2 (en) | 2011-06-15 | 2015-12-03 | Airius Ip Holdings, Llc | Columnar air moving devices, systems and methods |
EP2721352B1 (de) | 2011-06-15 | 2015-09-16 | Airius IP Holdings, LLC | Säulenförmige luftbewegungsvorrichtungen und systeme |
DE102011082131A1 (de) * | 2011-09-05 | 2013-03-07 | Siemens Aktiengesellschaft | Leitvorrichtung für eine Turbine |
EP2573328A1 (de) * | 2011-09-20 | 2013-03-27 | Siemens Aktiengesellschaft | Statorring für eine Turbomaschine und Verfahren zum Betreiben des Statorrings |
US8920116B2 (en) * | 2011-10-07 | 2014-12-30 | Siemens Energy, Inc. | Wear prevention system for securing compressor airfoils within a turbine engine |
CN102869890A (zh) * | 2012-04-04 | 2013-01-09 | 弗拉斯季米尔·塞德拉切克 | 用固定索将叶片固定在叶片环中的方法 |
USD698916S1 (en) | 2012-05-15 | 2014-02-04 | Airius Ip Holdings, Llc | Air moving device |
FR2994216B1 (fr) * | 2012-08-02 | 2014-09-05 | Snecma | Partie de revolution de carter intermediaire comportant un insert dispose dans une rainure annulaire |
US9353649B2 (en) | 2013-01-08 | 2016-05-31 | United Technologies Corporation | Wear liner spring seal |
EP2787177B1 (de) | 2013-04-02 | 2017-01-18 | MTU Aero Engines AG | Axiale Strömungsmaschine und Montageverfahren |
EP2818642A1 (de) * | 2013-06-28 | 2014-12-31 | Siemens Aktiengesellschaft | Dichtringsegment für einen Stator einer Turbine |
WO2015050739A1 (en) * | 2013-10-03 | 2015-04-09 | United Technologies Corporation | Vane seal system having spring positively locating seal member in axial direction |
WO2015076910A2 (en) * | 2013-10-03 | 2015-05-28 | United Technologies Corporation | Vane seal system and seal therefor |
US9702576B2 (en) | 2013-12-19 | 2017-07-11 | Airius Ip Holdings, Llc | Columnar air moving devices, systems and methods |
US10024531B2 (en) | 2013-12-19 | 2018-07-17 | Airius Ip Holdings, Llc | Columnar air moving devices, systems and methods |
US10221861B2 (en) | 2014-06-06 | 2019-03-05 | Airius Ip Holdings Llc | Columnar air moving devices, systems and methods |
US9976431B2 (en) * | 2014-07-22 | 2018-05-22 | United Technologies Corporation | Mid-turbine frame and gas turbine engine including same |
EP3009608B1 (de) * | 2014-10-02 | 2019-10-30 | United Technologies Corporation | Schaufelanordnung mit eingeschlossenen, segmentierten schaufelstrukturen |
USD805176S1 (en) | 2016-05-06 | 2017-12-12 | Airius Ip Holdings, Llc | Air moving device |
USD820967S1 (en) | 2016-05-06 | 2018-06-19 | Airius Ip Holdings Llc | Air moving device |
US10487852B2 (en) | 2016-06-24 | 2019-11-26 | Airius Ip Holdings, Llc | Air moving device |
EP3315728B1 (de) * | 2016-10-26 | 2022-01-12 | MTU Aero Engines AG | Gedämpfte leitschaufellagerung |
BE1024935B1 (fr) * | 2017-01-26 | 2018-08-27 | Safran Aero Boosters S.A. | Compresseur avec virole interne segmentee pour turbomachine axiale |
USD886275S1 (en) | 2017-01-26 | 2020-06-02 | Airius Ip Holdings, Llc | Air moving device |
USD885550S1 (en) | 2017-07-31 | 2020-05-26 | Airius Ip Holdings, Llc | Air moving device |
WO2019147219A1 (en) * | 2018-01-23 | 2019-08-01 | Siemens Aktiengesellschaft | Slide on shroud cover segments for gas turbine compressor stator vanes |
US11105209B2 (en) * | 2018-08-28 | 2021-08-31 | General Electric Company | Turbine blade tip shroud |
USD887541S1 (en) | 2019-03-21 | 2020-06-16 | Airius Ip Holdings, Llc | Air moving device |
US11598539B2 (en) | 2019-04-17 | 2023-03-07 | Airius Ip Holdings, Llc | Air moving device with bypass intake |
US11156110B1 (en) | 2020-08-04 | 2021-10-26 | General Electric Company | Rotor assembly for a turbine section of a gas turbine engine |
US11655719B2 (en) | 2021-04-16 | 2023-05-23 | General Electric Company | Airfoil assembly |
KR102698465B1 (ko) | 2021-12-01 | 2024-08-22 | 두산에너빌리티 주식회사 | 리프 스프링 및 이를 포함하는 씰링 어셈블리 |
US12071864B2 (en) | 2022-01-21 | 2024-08-27 | Rtx Corporation | Turbine section with ceramic support rings and ceramic vane arc segments |
CN114991877B (zh) * | 2022-08-03 | 2022-11-18 | 成都中科翼能科技有限公司 | 一种涡轮转子的组合式叶片结构 |
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US3326523A (en) * | 1965-12-06 | 1967-06-20 | Gen Electric | Stator vane assembly having composite sectors |
US4285633A (en) * | 1979-10-26 | 1981-08-25 | The United States Of America As Represented By The Secretary Of The Air Force | Broad spectrum vibration damper assembly fixed stator vanes of axial flow compressor |
US4897021A (en) * | 1988-06-02 | 1990-01-30 | United Technologies Corporation | Stator vane asssembly for an axial flow rotary machine |
DE19507673C2 (de) * | 1995-03-06 | 1997-07-03 | Mtu Muenchen Gmbh | Leitrad für Turbomaschinen |
JPH1150807A (ja) | 1997-08-05 | 1999-02-23 | Mitsubishi Heavy Ind Ltd | 蒸気タービンのシールフィン装置 |
US6139264A (en) * | 1998-12-07 | 2000-10-31 | General Electric Company | Compressor interstage seal |
US7291946B2 (en) * | 2003-01-27 | 2007-11-06 | United Technologies Corporation | Damper for stator assembly |
FR2881174B1 (fr) * | 2005-01-27 | 2010-08-20 | Snecma Moteurs | Dispositif de positionnement d'une aube et disque aubage comportant un tel dispositif |
-
2004
- 2004-02-11 DE DE102004006706A patent/DE102004006706A1/de not_active Ceased
-
2005
- 2005-02-04 CA CA002555578A patent/CA2555578A1/en not_active Abandoned
- 2005-02-04 WO PCT/DE2005/000182 patent/WO2005078242A1/de active Application Filing
- 2005-02-04 US US10/589,160 patent/US8105016B2/en not_active Expired - Fee Related
- 2005-02-04 EP EP05714933.8A patent/EP1714006B1/de not_active Ceased
Non-Patent Citations (1)
Title |
---|
See references of WO2005078242A1 * |
Also Published As
Publication number | Publication date |
---|---|
US8105016B2 (en) | 2012-01-31 |
WO2005078242A1 (de) | 2005-08-25 |
DE102004006706A1 (de) | 2005-08-25 |
US20080019836A1 (en) | 2008-01-24 |
CA2555578A1 (en) | 2005-08-25 |
EP1714006B1 (de) | 2014-01-15 |
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