EP1512838A2 - Rotor einer Dampf- oder Gasturbine - Google Patents
Rotor einer Dampf- oder Gasturbine Download PDFInfo
- Publication number
- EP1512838A2 EP1512838A2 EP04018654A EP04018654A EP1512838A2 EP 1512838 A2 EP1512838 A2 EP 1512838A2 EP 04018654 A EP04018654 A EP 04018654A EP 04018654 A EP04018654 A EP 04018654A EP 1512838 A2 EP1512838 A2 EP 1512838A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- cavity
- rotor
- blades
- pockets
- section
- 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.)
- Withdrawn
Links
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000013016 damping Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 235000014443 Pyrus communis Nutrition 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000007734 materials engineering Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 210000002435 tendon Anatomy 0.000 description 1
Images
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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S416/00—Fluid reaction surfaces, i.e. impellers
- Y10S416/50—Vibration damping features
Definitions
- the invention relates to a rotor of a steam or gas turbine with the features of the preamble of claim 1.
- Steam turbines are mainly used as power plant turbines Electricity generation and as industrial turbines for driving Generators, pumps, blowers and compressors.
- the Steam turbine is a heat engine with rotating Running parts, in which the enthalpy gradient of the continuously flowing Steam in one or more stages in mechanical work is converted.
- the blading of the rotating running part of the turbine should the heat content of the steam as lossless as possible in Convert speed energy and the occurring Forces transmitted to the shaft and the housing of the turbine.
- the deflection takes place in the fixed guide vane stage, then back through the to flow next blade stage.
- the turbine is repeated several times.
- the profile length the blades and guide vanes increase in the flow direction. Thereby increases the flowed space with the result that the Reduce pressure and the temperature of the steam. Big turbines are divided into a high, medium and low pressure part.
- each shovel is a compromise between fluidic, strength, vibration and economic demands.
- the blade profiles are available usually geometrically graded tendon lengths available.
- the Shovels in a turbine are stressed and versatile loaded. To ensure a long service life and To avoid damage, the blades must be adjusted accordingly safely designed and designed.
- a blade must z. B. have sufficient strength to the burden of the occurring centrifugal forces and the bending due absorb the torque to be transferred. Further Stress factors are the temperature at the entrance from to maximum 530 ° C and in the low pressure range due to the wetness of the steam occurring erosion corrosion at the profile entry sides.
- the cover plates with a made small angle twist to the blade root. After your Installation in the turbine rotor, the blades are under one certain torsional stress, which compensates for the formation of gaps and thereby ensuring the vibration damping.
- the solution is However, technically expensive and difficult to design.
- the blades for their application have a certain Minimum length to generate a torsional stress at all to be able to.
- the tension builds up due to wear at the contact surfaces and fatigue from. Then that is Vibration damping no longer available.
- the invention is based on the object, the generic Blades of the turbine rotor with a safe acting To provide cushioning that easy and low cost too finished is.
- the invention is also applicable to blades which are installed in high-speed turbines as well on blades, which have a small overall length and a small one Have cover plate height.
- a substantially cavity closed on all sides in the form of a drop or a pear.
- the blade attached to the rotor has a pin in it Shape and size is adapted to the cavity.
- the pencil can be a cylindrical or, similar to the bag, also a have profiled shape. What is important is that the pen with his Cross-section and its length fits easily into the cavity. He should therefore have a game on all sides, so that the Dividing surfaces of the blades when installed to the plant come.
- the material combination between blade and pin is after selected low wear.
- the invention has the following advantages. Every pin fits individually with uniform contact pressure through Thermal expansion and centrifugal force resulting gap between the Blades on. At standstill, the level can be casual relax. The operation of the invention remains over the total operating life of the built-in stage of the blades certainly received. The production is simple and can with low Costs are carried out.
- the blade preferably in the high or Medium-pressure part of a turbine is used, consists of a Blade foot 1, which has a conical shape and in the illustrated Case is designed as a plug-in foot, as well as from a streamlined airfoil 2 and one at the profile end of the airfoil 2 arranged cover plate 3, with their both dividing surfaces on the same radial plane with the lying on both inclined foot surfaces.
- the cross section of Blade foot 1 and cover plate 3 is in Fig. 3 as a rectangle shown.
- the invention is also in the same way for Blades with a rhomboidal cross section applicable.
- the blade roots 1 are in an adapted circumferential groove of the Rotor 6 of the turbine used radially and in the illustrated case 4 held by two conical pins 7 in the rotor 6.
- the shape of the blade roots 1 can also deviate from the illustration z. B. be designed as a single or double hammer head.
- the blade roots 1 and the cover plates 3 in a row arranged blades are in the installed state of FIG. 5 close together, with a gap A small width ( Figure 9).
- the pockets 5 of two adjacent cover plates 3 are in illustrated case mirror symmetry to each other and formed together form a substantially closed cavity. However, the function of the invention is retained even if the two adjacent pockets 5 opposite to the representation one form asymmetric cavity.
- the asymmetry can be through Tolerances in the height and depth of the pockets 5 at their Production arise. But they can also be different Wedge angle in the two adjacent pockets 5 are selected.
- To get the last bucket (end bucket) in one step It may be necessary to fit the two bags formed to the blade profile side of this blade open must be in order to collide with the two inserted Avoid pins 4 of neighboring blades. Also by it creates an asymmetric cavity.
- the cavity formed by the pockets 5 narrows in radial direction of the rotor 6 wedge-shaped. As in FIGS. 11 and 12 to recognize the cavity is drop-shaped, wherein The cross-section of the cavity initially on a largest Extended cross-section, and then again together in a wedge shape to run.
- the largest cross section is smaller as the largest cross-section of the cavity, but larger than its smallest cross section.
- the pin 4 is at both ends bevelled by an unwanted clamping in the cavity in To avoid longitudinal direction.
- the shape of the pin can be cylindrical (FIG. 12) or profiled (FIG. 11) and the shape of the pockets 5 be adjusted.
- Fig. 8 and 9 the function of the invention is shown. at a machine standstill (Fig. 8), the position of the pins 4 in the cavity determined by gravity, so that the pin 4 lies at the bottom of the cavity. In the operating state (FIG. 9) All pins 4 in the cavity through the on the pins 4th acting centrifugal force pushed outwards. The existing one Gap A between the cover plates 3 of two adjacent Blades is bridged by the pin 4, and the Vibrations on the blade are caused by the contact or Friction surfaces between cover plate 3 and pin 4 damped.
- the height of the cavity is determined by the wedge angle, the forming the pockets 5 with each other.
- pockets are 5 shown, in which the two wedge surfaces smaller than 90 ° are arranged to each other. The pocket height is thereby minimized.
- This embodiment can be small Deckplatten devisn be used.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
Description
- Fig. 1
- die Vorderansicht einer Laufschaüfel,
- Fig. 2
- die Seitenansicht von Fig. 1,
- Fig. 3
- die Draufsicht auf Fig. 1,
- Fig. 4
- den axialen Schnitt IV - IV nach Fig. 5 durch eine in einen Rotor eingebaute Laufschaufel,
- Fig. 5
- den radialen Schnitt V - V nach Fig. 4,
- Fig. 6
- die vergrößerte Vorderansicht auf die Tasche in der Deckplatte mit dem eingelegten Stift,
- Fig. 7
- den Schnitt VII - VII durch Fig. 6 mit angedeutetem Schaftfräser,
- Fig. 8
- die Einzelheit X nach Fig. 5 in vergrößertem Maßstab bei einem Stillstand der Turbine,
- Fig. 9
- die Einzelheit X nach Fig. 5 in vergrößertem Maßstab im Betriebszustand der Turbine,
- Fig. 10
- die Kraftdreiecke bezogen auf die Zentrifugalkraft des Stiftes,
- Fig. 11
- ein Beispiel für einen profilierten Stift und
- Fig. 12
- ein besonderes Beispiel für eine in der Höhe minimierte Ausnehmung für kleinste Deckplattenhöhen.
Claims (8)
- Rotor einer Dampf- oder Gasturbine mit Laufschaufeln, die in mehreren radialen Reihen in dem Rotor (6) gehalten sind und die jeweils aus einem in den Rotor (6) eingebauten Schaufelfuß 1, einem Schaufelblatt (2) und einer Deckplatte (3) bestehen, dadurch gekennzeichnet, dass in den einander gegenüber stehenden Neigungsflächen der Deckplatten (3) einer Reihe von Laufschaufeln eine offene Tasche (5) eingebracht ist, dass die Taschen (5) zweier benachbarter Deckplatten (3) zusammen einen im wesentlichen geschlossenen Hohlraum bilden, der sich in radialer Richtung des Rotors (6) erweitert, dass in jeden Hohlraum ein Stift (4) frei beweglich eingelegt ist, dessen größter Querschnitt kleiner ist als der größte Querschnitt des Hohlraumes und größer ist als der kleinste Querschnitt des Hohlraumes.
- Rotor nach Anspruch 1, dadurch gekennzeichnet, dass sich der Hohlraum in radialer Richtung der Rotors (6) zunächst auf einen größten Querschnitt erweitert und danach wieder verengt.
- Rotor nach Anspruch 1, dadurch gekennzeichnet, dass der aus zwei Taschen (5) gebildete Hohlraum tropfenförmig ausgebildet ist.
- Rotor nach Anspruch 1, dadurch gekennzeichnet, dass die Taschen (5) zweier benachbarter Deckplatten (3) spiegelsymmetrisch zueinander ausgebildet sind.
- Rotor nach Anspruch 1, dadurch gekennzeichnet, dass die Taschen (5) zweier benachbarter Deckplatten (3) asymmetrisch zueinander ausgebildet sind.
- Rotor nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Form des Stiftes (4) der Form des Hohlraumes angepasst ist.
- Rotor nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass der Stift (4) zylindrisch ist.
- Rotor nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass der Keilwinkel, den die Innenflächen der Taschen (5) des Hohlraumes miteinander bilden, größer ist als der Winkel, bei dem eine Selbsthemmung des Stiftes (4) in dem Hohlraum eintritt.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10340773 | 2003-09-02 | ||
DE10340773A DE10340773A1 (de) | 2003-09-02 | 2003-09-02 | Rotor einer Dampf- oder Gasturbine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1512838A2 true EP1512838A2 (de) | 2005-03-09 |
EP1512838A3 EP1512838A3 (de) | 2006-07-19 |
Family
ID=34129641
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04018654A Withdrawn EP1512838A3 (de) | 2003-09-02 | 2004-08-06 | Rotor einer Dampf- oder Gasturbine |
Country Status (5)
Country | Link |
---|---|
US (1) | US7104758B2 (de) |
EP (1) | EP1512838A3 (de) |
JP (1) | JP2005076638A (de) |
DE (1) | DE10340773A1 (de) |
RU (1) | RU2347913C2 (de) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1944466A1 (de) * | 2007-01-10 | 2008-07-16 | Siemens Aktiengesellschaft | Kopplung zweier Laufschaufeln |
WO2010000228A2 (de) * | 2008-07-04 | 2010-01-07 | Man Turbo Ag | Laufschaufel und strömungsmaschine mit laufschaufel |
DE102009048957A1 (de) | 2009-10-10 | 2011-04-14 | Mtu Aero Engines Gmbh | Verfahren zum Schmelzschweißen eines einkristallinen Werkstücks mit einem polykristallinen Werkstück und Rotor |
WO2012072069A1 (de) * | 2010-11-30 | 2012-06-07 | Mtu Aero Engines Gmbh | Dämpfungsmittel zum dämpfen einer schaufelbewegung einer turbomaschine |
US10851661B2 (en) | 2017-08-01 | 2020-12-01 | General Electric Company | Sealing system for a rotary machine and method of assembling same |
WO2023247856A1 (fr) * | 2022-06-22 | 2023-12-28 | Safran Aircraft Engines | Ensemble aubage de turbomachine comportant des moyens de limitations de vibrations entre plateformes |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1557534A1 (de) * | 2004-01-20 | 2005-07-27 | Siemens Aktiengesellschaft | Turbinenschaufel und Gasturbine mit einer solchen Turbinenschaufel |
DE102005030516A1 (de) * | 2005-06-28 | 2007-01-04 | Man Turbo Ag | Rotor für eine Turbine sowie Verfahren und Vorrichtung zur Herstellung des Rotors |
GB2449493B (en) * | 2007-05-25 | 2009-08-12 | Rolls Royce Plc | Vibration damper assembly |
US8257044B2 (en) * | 2007-09-11 | 2012-09-04 | Hitachi, Ltd. | Steam turbine rotor blade assembly |
US8137072B2 (en) * | 2008-10-31 | 2012-03-20 | Solar Turbines Inc. | Turbine blade including a seal pocket |
US8393869B2 (en) | 2008-12-19 | 2013-03-12 | Solar Turbines Inc. | Turbine blade assembly including a damper |
DE102009013348A1 (de) * | 2009-03-16 | 2010-09-23 | Man Turbo Ag | Vorrichtung und Verfahren zum Verbinden einer Schaufel mit einer Rotorwelle einer Strömungsmaschine |
US8834123B2 (en) * | 2009-12-29 | 2014-09-16 | Rolls-Royce Corporation | Turbomachinery component |
FR2963381B1 (fr) * | 2010-07-27 | 2015-04-10 | Snecma | Etancheite inter-aubes pour une roue de turbine ou de compresseur de turbomachine |
US8790086B2 (en) * | 2010-11-11 | 2014-07-29 | General Electric Company | Turbine blade assembly for retaining sealing and dampening elements |
US8834125B2 (en) | 2011-05-26 | 2014-09-16 | United Technologies Corporation | Hybrid rotor disk assembly with a ceramic matrix composite airfoil for a gas turbine engine |
US8851853B2 (en) * | 2011-05-26 | 2014-10-07 | United Technologies Corporation | Hybrid rotor disk assembly for a gas turbine engine |
US8936440B2 (en) | 2011-05-26 | 2015-01-20 | United Technologies Corporation | Hybrid rotor disk assembly with ceramic matrix composites platform for a gas turbine engine |
JP2012251503A (ja) | 2011-06-03 | 2012-12-20 | Hitachi Ltd | 蒸気タービン |
EP2690254B1 (de) * | 2012-07-27 | 2017-04-26 | General Electric Technology GmbH | Schaufelfussbefestigungen für ein Turbinenrotorblatt |
ITCO20130004A1 (it) * | 2013-02-20 | 2014-08-21 | Nuovo Pignone Srl | Metodo per realizzare una girante da segmenti a settore |
EP2803821A1 (de) * | 2013-05-13 | 2014-11-19 | Siemens Aktiengesellschaft | Schaufelvorrichtung, Schaufelsystem und zugehöriges Herstellungsverfahren eines Schaufelsystems |
EP3049634B1 (de) | 2013-09-26 | 2019-02-27 | Franco Tosi Meccanica S.p.A. | Rotorstufe einer axialturbine mit adaptiver regelung nach dynamischen belastungen |
DE102014214271A1 (de) * | 2014-07-22 | 2016-01-28 | MTU Aero Engines AG | Turbomaschinenschaufel |
EP3009608B1 (de) | 2014-10-02 | 2019-10-30 | United Technologies Corporation | Schaufelanordnung mit eingeschlossenen, segmentierten schaufelstrukturen |
JP6991912B2 (ja) | 2018-03-28 | 2022-01-13 | 三菱重工業株式会社 | 回転機械 |
US11536144B2 (en) * | 2020-09-30 | 2022-12-27 | General Electric Company | Rotor blade damping structures |
Family Cites Families (18)
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GB532372A (en) * | 1938-08-27 | 1941-01-22 | British Thomson Houston Co Ltd | Improvements in and relating to elastic fluid turbines |
US2310412A (en) * | 1941-03-08 | 1943-02-09 | Westinghouse Electric & Mfg Co | Vibration dampener |
US2430140A (en) * | 1945-04-06 | 1947-11-04 | Northrop Hendy Company | Turbine blade and mounting |
DE1005084B (de) * | 1955-09-27 | 1957-03-28 | Siemens Ag | Bindung von Turbinenlaufschaufeln |
US2942843A (en) * | 1956-06-15 | 1960-06-28 | Westinghouse Electric Corp | Blade vibration damping structure |
CH418360A (de) * | 1962-11-21 | 1966-08-15 | Ass Elect Ind | Turbomaschine |
US3752599A (en) * | 1971-03-29 | 1973-08-14 | Gen Electric | Bucket vibration damping device |
GB1460714A (en) * | 1973-06-26 | 1977-01-06 | Rolls Royce | Bladed rotor for a gas turbine engine |
US4267895A (en) | 1979-05-10 | 1981-05-19 | The Budd Company | Automotive body frame for a combined engine and battery operated vehicle |
JPS5776020A (en) | 1980-10-30 | 1982-05-12 | Mitsubishi Chem Ind Ltd | Preparation of cured article |
JPS5776208A (en) * | 1980-10-30 | 1982-05-13 | Toshiba Corp | Turbine vane |
JPS58176402A (ja) * | 1982-04-10 | 1983-10-15 | Toshiba Corp | タ−ビン動翼の制振装置 |
US4784571A (en) * | 1987-02-09 | 1988-11-15 | Westinghouse Electric Corp. | Apparatus and method for reducing blade flop in steam turbine |
US5156528A (en) * | 1991-04-19 | 1992-10-20 | General Electric Company | Vibration damping of gas turbine engine buckets |
JPH0586803A (ja) * | 1991-09-25 | 1993-04-06 | Mitsubishi Heavy Ind Ltd | トリプルピン翼 |
JPH06221102A (ja) * | 1993-01-25 | 1994-08-09 | Mitsubishi Heavy Ind Ltd | 動翼シュラゥド |
JP2000204901A (ja) * | 1999-01-08 | 2000-07-25 | Mitsubishi Heavy Ind Ltd | 軸流回転機械における動翼の制振構造 |
DE10022244A1 (de) * | 2000-05-08 | 2001-11-15 | Alstom Power Nv | Schaufelanordnung mit Dämpfungselementen |
-
2003
- 2003-09-02 DE DE10340773A patent/DE10340773A1/de not_active Withdrawn
-
2004
- 2004-08-06 EP EP04018654A patent/EP1512838A3/de not_active Withdrawn
- 2004-08-25 US US10/926,439 patent/US7104758B2/en not_active Expired - Fee Related
- 2004-09-01 RU RU2004126590/06A patent/RU2347913C2/ru not_active IP Right Cessation
- 2004-09-01 JP JP2004254990A patent/JP2005076638A/ja active Pending
Non-Patent Citations (1)
Title |
---|
None * |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1944466A1 (de) * | 2007-01-10 | 2008-07-16 | Siemens Aktiengesellschaft | Kopplung zweier Laufschaufeln |
US8974187B2 (en) | 2008-07-04 | 2015-03-10 | Man Diesel & Turbo Se | Rotor blade and flow engine comprising a rotor blade |
WO2010000228A2 (de) * | 2008-07-04 | 2010-01-07 | Man Turbo Ag | Laufschaufel und strömungsmaschine mit laufschaufel |
WO2010000228A3 (de) * | 2008-07-04 | 2010-12-29 | Man Diesel & Turbo Se | Laufschaufel und strömungsmaschine mit laufschaufel |
CN102084091B (zh) * | 2008-07-04 | 2016-03-02 | 曼柴油机和涡轮机欧洲股份公司 | 动叶片以及带有动叶片的流体机械 |
CN102084091A (zh) * | 2008-07-04 | 2011-06-01 | 曼柴油机和涡轮机欧洲股份公司 | 动叶片以及带有动叶片的流体机械 |
DE102009048957A1 (de) | 2009-10-10 | 2011-04-14 | Mtu Aero Engines Gmbh | Verfahren zum Schmelzschweißen eines einkristallinen Werkstücks mit einem polykristallinen Werkstück und Rotor |
DE102009048957C5 (de) * | 2009-10-10 | 2014-01-09 | Mtu Aero Engines Gmbh | Verfahren zum Schmelzschweißen eines einkristallinen Werkstücks mit einem polykristallinen Werkstück und Rotor |
DE102009048957B4 (de) * | 2009-10-10 | 2011-09-01 | Mtu Aero Engines Gmbh | Verfahren zum Schmelzschweißen eines einkristallinen Werkstücks mit einem polykristallinen Werkstück und Rotor |
WO2011042006A1 (de) | 2009-10-10 | 2011-04-14 | Mtu Aero Engines Gmbh | Verfahren zum schmelzschweissen eines einkristallinen werkstücks mit einem polykristallinen werkstück und rotor |
WO2012072069A1 (de) * | 2010-11-30 | 2012-06-07 | Mtu Aero Engines Gmbh | Dämpfungsmittel zum dämpfen einer schaufelbewegung einer turbomaschine |
US9506372B2 (en) | 2010-11-30 | 2016-11-29 | Mtu Aero Engines Gmbh | Damping means for damping a blade movement of a turbomachine |
US10851661B2 (en) | 2017-08-01 | 2020-12-01 | General Electric Company | Sealing system for a rotary machine and method of assembling same |
WO2023247856A1 (fr) * | 2022-06-22 | 2023-12-28 | Safran Aircraft Engines | Ensemble aubage de turbomachine comportant des moyens de limitations de vibrations entre plateformes |
FR3137127A1 (fr) * | 2022-06-22 | 2023-12-29 | Safran Aircraft Engines | Ensemble aubagé de turbomachine comportant des moyens de limitations de vibrations entre plateformes |
Also Published As
Publication number | Publication date |
---|---|
EP1512838A3 (de) | 2006-07-19 |
US7104758B2 (en) | 2006-09-12 |
RU2004126590A (ru) | 2006-02-10 |
US20050047917A1 (en) | 2005-03-03 |
JP2005076638A (ja) | 2005-03-24 |
DE10340773A1 (de) | 2005-03-24 |
RU2347913C2 (ru) | 2009-02-27 |
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