EP1515001A2 - Laufschaufelbindung einer Turbomaschine - Google Patents
Laufschaufelbindung einer Turbomaschine Download PDFInfo
- Publication number
- EP1515001A2 EP1515001A2 EP04104236A EP04104236A EP1515001A2 EP 1515001 A2 EP1515001 A2 EP 1515001A2 EP 04104236 A EP04104236 A EP 04104236A EP 04104236 A EP04104236 A EP 04104236A EP 1515001 A2 EP1515001 A2 EP 1515001A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- support surface
- counter
- pressure body
- blade
- approach
- 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
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
-
- 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
- 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
- F05D2250/232—Three-dimensional prismatic conical
-
- 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
- F05D2250/24—Three-dimensional ellipsoidal
- F05D2250/241—Three-dimensional ellipsoidal spherical
-
- 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 present invention relates to a binding of blades of a turbomachine with the features of the preamble of claim 1.
- a blade binding of the type mentioned are known, are provided in the approaches that extend in the circumferential direction, in pairs are rigidly connected to a blade and each one via at least one pressure body at the circumferentially adjacent Support the approach.
- each pressure body at one of the associated A n-set facing holding side on a holding contour, in one of the associated Approach trained receptacle protrudes and in it in the circumferential direction and transversely supported.
- each pressure body at one of the adjacent Approach facing support side on a flat support surface which adjoins one of the adjacent approach associated flat counter-support surface area supported.
- the retaining contours of the Pressure body each formed as a cone.
- the associated shots are also formed as a cone, wherein the cone of the retaining contour, however, a has conicity other than the taper of the receptacle. This will achieve that manufacturing tolerances of the seat and the pressure hull by minor plastic deformations on the outer edge of the cone holder and the Konushaltekontur can be compensated.
- the known blade binding works optimally when in operation of the turbomachine Only relative movements occur that are parallel to the support surface run. The support surface can then slide on the mating support surface. In practice, however, not only parallel guided relative movements between the approaches to be supported or linked to each other on. Especially when starting a turbine or certain Low load operating phases, e.g. during the ventilation in the last turbine stage, There may be twisting and twisting of the blades and Thus, the approaches come, which in particular to an increased swing n-gungsbe screwung the blade binding leads. Rotational movements between the However, approaches lead to a line or point load of the respective Pressure body, resulting in a brittle fracture of the hard pressure body or can lead to cracking of the pressure body seat.
- the object is underlying, for a blade binding of the type mentioned an improved Specify an embodiment that allows manufacturing tolerances, games, elastic deformation and similar factors exclusively by a sliding movement compensate.
- the invention is based on the general idea, the holding contour of the Pressure body and the contour of the associated recording as complementary ball sections train.
- This construction is achieved on the one hand, that the pressure body is supported flat on the associated approach.
- the other is by this measure, a ball head bearing of the pressure hull on the associated Approach formed, which allows the pressure body, its support surface to turn the ball center.
- the lugs or the blades for example during startup
- the rotatably mounted pressure body these relative movements compensate, so that always a two-dimensional force transmission between the mutually supported or interconnected approaches is achievable.
- an automatic adjustment the movably mounted pressure hull. Stress peaks are thereby avoided. In operation at rated speed, however, comes the friction damping due to the extensive plant to full advantage. There are no high-frequency Tilting movements.
- the ball portion of the retaining contour a ball center, while the support surface is circular and a Center of the circle has.
- the pressure body is then designed so that a straight line, extending through both the center of the circle and the center of the sphere extends, is perpendicular to the support surface plane.
- the Pressure body is constructed rotationally symmetrical with respect to this line.
- the mating support surface associated with the adjacent lug and on which For example, the support surface of the pressure hull is supported flat be formed directly on the front side of the adjacent approach.
- this counter support surface may be formed on an abutment member which is fixed to an end face of the adjacent approach. It is also possible to form the counter support surface by the support surface of a counter-pressure body, which is supported on the adjacent approach.
- the pressure body and counterpressure body can be identical. However, preference is given to an embodiment in which the counter-pressure body can not carry out tumbling movements with respect to the normal direction of its counter-support surface. In this way, all compensatory movements are performed exclusively by the ball-bearing pressure body. This ensures that the movable pressure body with appropriate twists of the approaches again and again adjusted by itself to its original position
- both the counter-pressure body at the associated approach there is a two-dimensional system the counter-pressure body at the associated approach.
- the counter-pressure body fixed with respect to its longitudinal central axis rigidly at the neck and can serve as an abutment for the pressure body supported thereon.
- rotor blades 1 are otherwise not shown Turbomachine each with two, on different sides of the airfoil lying approaches 2 equipped. These approaches 2 extend in a direction indicated by an arrow circumferential direction 3, in which the blades 1 circulating in the operation of the turbomachine.
- the lugs 2 are rigid with the respective blade 1 and in particular an integral Part of the respective blade 1 form.
- the approaches are useful 2 designed in the form of support wings, which have aerodynamic profiles and usually disposed between the radial ends of the blades 1 are.
- the approaches 2 but also as cover plates or Shrouds be designed, which at the radially outer ends of the Blades 1 are arranged.
- the approaches 2 and others Be binding elements.
- the lugs 2 are based on their End faces 4 not directly from each other, but indirectly each at least over a pressure body 7 (see Figures 2 to 4). However, these pressure bodies 7 are not shown to simplify the illustration in FIGS. 1a and 1b.
- Figs. 2 to 4 are each the opposite End portions of a pair of lugs 2, at least in operation support the turbomachine against each other, cut reproduced, during the arranged in this area pressure body 7 is not cut is shown. It is clear that the sectional view of Figs. 2 to 4 also a Can correspond to the section around the section line II in the plane of the drawing Fig. 1b is rotated by 90 °.
- each pressure body 7 has a spherical Holding side 8 and a flat support side 9. While the holding side 8 that Approach approach 2, which the respective pressure body 7 is assigned (according to 2 to 4 each of the right approach 2), the support side 9 is the one in the circumferential direction 3 adjacent approach 2 facing (ie according to FIGS. 2 to 4, respectively the left approach 2). On the holding side 8 is a down or protruding Holding contour 10 is formed.
- the approach 2 which is associated with the pressure body 7, has on its front side 4 a receptacle 11, in which the holding contour 10th the pressure body 7 is inserted.
- the holding contour 10 thus projects into the receptacle 11 in and can be in it in the circumferential direction 3 and transverse to the circumferential direction Support 3.
- the retaining contour 10 is now a ball section educated.
- the recording 11 also as Ball section formed.
- the ball sections have the same radius R, whereby the ball portion of the retaining contour 10 flat on the ball portion the recording 11 comes to rest.
- the inventive Pressure body 7 thereby a kind of ball joint, in a joint socket around a Ball center 12 is movably mounted on the associated approach 2.
- the socket is formed by the receptacle 11.
- the radii of pressure hull. 7 and recording 11 also differ slightly.
- the pressure body 7 has on its support side 9 a flat support surface 13. As is apparent from FIGS. 2 to 4, the pressure body 7 is supported at least during operation of the turbomachine with its support surface 13 on a mating support surface 14, which is assigned to the adjacent support wing 2. Also the Counter support surface 14 is configured just so that the support surfaces 13 and 14 lie flat against each other.
- the pressure body according to the invention 7 between the interconnected lugs 2 comparatively large Transfer forces F in the circumferential direction 3.
- due to friction also coupling moments M between adjacent blades 1 over the interconnected approaches 2 are transmitted.
- Because of the moving Storage of the pressure hull 7 on the associated approach 2 can also Rotary adjustments or twists between adjacent blades 1 or between mutually supported approaches 2 are compensated.
- By the proposed storage of the pressure hull 7 remains the area conditioning obtained between the support surfaces 13 and 14, as well as the surface conditioning between the retaining contour 10 and the receptacle 11.
- the blade binding according to the invention can thus be used during operation, above all when starting and stopping, possibly occurring rotational movements and different Balancing angular positions of the approaches 2, without it comes to greater elastic or even plastic deformation.
- the geometry of the support body 7 is suitably chosen so that the support surface 13 is configured circular and has a circle center 15.
- the spherical one Holding contour 10 is matched to the flat support surface 13, that a straight line 16, through both the center of the circle 15 and through the ball center 12 extends perpendicular to the plane of the support surface 13th stands. This results in a rotational symmetry for the pressure body 7, so that the storage achieved in this way acts as it were in all spatial directions.
- the counter support surface 14 is instantaneous formed on the front side 4 of the adjacent approach 2.
- the counter support surface 14 may also be formed on a special abutment element 17.
- This abutment element 17 is on the front side 4 of the adjacent approach 2 fixed, in particular by soldering or welding.
- the abutment member 17 is designed as a plate which in the Inserted end face 4 of the adjacent approach 2 and arranged sunk therein is.
- the counter support surface 14 also be formed on a counterpressure body 18.
- the Back pressure body 18 has - as well as the pressure body 7 - a support side 19 with a flat support surface which forms the counter support surface 14.
- the counter-pressure member 18 equipped with a holding side 20 at a holding contour 21 is formed.
- the retaining contour 21 of the counter-pressure body 18 is inserted into a corresponding receptacle 22 which in the adjacent Approach 2 is formed.
- the shape of the retaining contour 21 of the Back pressure body 18 and the cooperating receptacle 22 are there coordinated so that the counter-support surface 14 of the counter-pressure body 18 is fixed relative to the associated approach 2 spatially.
- the counter-pressure member 18 about its longitudinal central axis to rotate, however, while the plane of its counter-support surface 14 remains relative to the associated approach 2 invariant.
- the support surfaces 13 and / or the counter support surfaces 14 with a low-friction coating be provided (not shown). At the same time can by this measure in the plane of the support surfaces 13 and the counter support surfaces 14 occurring Frictional forces are reduced.
- the abutment element 17 according to FIG. 3 be made of a suitable carbide.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
Description
Ebenso ist es möglich, die Gegenstützfläche durch die Stützfläche eines Gegendruckkörpers zu bilden, der am benachbarten Ansatz gehaltert ist. Grundsätzlich können Druckkörper und Gegendruckkörper baugleich sein. Bevorzugt wird jedoch eine Ausführungsform, bei welcher der Gegendruckkörper bezüglich der Normalenrichtung seiner Gegenstützfläche keine Taumelbewegungen durchführen kann. Auf diese Weise werden sämtliche Ausgleichsbewegungen ausschließlich von dem kugelgelagerten Druckkörper durchgeführt. Hierdurch wird erreicht, dass sich der bewegliche Druckkörper bei entsprechenden Verdrehungen der Ansätze immer wieder von selbst in seine Ausgangslage zurück verstellt
- Fig. 1a, 1b
- je eine Draufsicht auf einen Schaufelkranzausschnitt im Außerbetriebszustand (1a) und im Betriebszustand (1b),
- Fig. 2
- einen Schnitt gemäß einer Schnittlinie II - II in Fig. 1b durch zwei miteinander verbundene Ansätze,
- Fig. 3
- eine Schnittansicht wie in Fig. 2, jedoch bei einer anderen Ausführungsform,
- Fig. 4
- eine Schnittansicht wie in Fig. 2, jedoch bei einer weiteren Ausfü hrungsform.
- 1
- Laufschaufel
- 2
- Ansatz/Stützflügel
- 3
- Umfangsrichtung
- 4
- Stirnseite von 2
- 5
- Spalt
- 6
- Moment
- 7
- Druckkörper
- 8
- Halteseite von 7
- 9
- Stützseite von 7
- 10
- Haltekontur von 8
- 11
- Aufnahme
- 12
- Kugelmittelpunkt
- 13
- Stützfläche von 9
- 14
- Gegenstützfläche
- 15
- Kreismittelpunkt
- 16
- Gerade
- 17
- Widerlagerelement
- 18
- Gegendruckkörper
- 19
- Stützseite von 18
- 20
- Halteseite von 18
- 21
- Haltekontur von 20
- 22
- Aufnahme
- R
- Radius
- F
- Kraft
- M
- Kopplungsmoment
Claims (6)
- Bindung von Laufschaufeln (1) einer Turbomaschine, mit Ansätzen (2), die sich in Umfangsrichtung (3) erstrecken, paarweise mit einer Laufschaufel (1) starr verbunden sind und sich zumindest im Betrieb der Turbomaschine jeweils über wenigstens einen Druckkörper (7) am in Umfangsrichtung (3) benachbarten Ansatz (2) abstützen,dadurch gekennzeichnet,wobei jeder Druckkörper (7) an einer dem zugehörigen Ansatz (2) zugewandten Halteseite (8) eine Haltekontur (10) aufweist, die in eine am zugehörigen Ansatz (2) ausgebildete Aufnahme (11) hineinragt und sich darin in Umfangsrichtung (3) und quer dazu abstützt,wobei jeder Druckkörper (7) an einer dem benachbarten Ansatz (2) zugewandten Stützseite (9) eine ebene Stützfläche (13) aufweist, die sich zumi n-dest im Betrieb der Turbomaschine an einer dem benachbarten Ansatz (2) zugeordneten ebenen Gegenstützfläche (14) flächig abstützt,dass jedem Paar sich aneinander abstützender Ansätze (2) mindestens ein Druckkörper (7) zugeordnet ist, dessen Haltekontur (10) als Kugelabschnitt ausgebildet ist,wobei die zugehörige Aufnahme (11) ebenfalls als Kugelabschnitt ausgebildet ist, deren Radius (R) wenigstens annähernd gleich groß ist wie der Radius (R) des Kugelabschnitts der Haltekontur (10).
- Laufschaufelbindung nach Anspruch 1,
dadurch gekennzeichnet, dass die Gegenstützfläche (14) direkt an einer Stirnseite (4) des benachbarten Ansatzes (2) ausgebildet ist. - Laufschaufelbindung nach Anspruch 1,
dadurch gekennzeichnet, dass die Gegenstützfläche (14) durch die Stützfläche eines Gegendruckkörpers (18) gebildet ist, der mit seiner Haltekontur (21) in eine im benachbarten Ansatz (2) ausgebildete Aufnahme (22) hineinragt. - Laufschaufelbindung nach Anspruch 3,
dadurch gekennzeichnet, dass die Haltekontur (21) des Gegendruckkörpers (18) als Konus ausgebildet ist, wobei die zugehörige Aufnahme (22) ebenfalls als Konus ausgebildet ist, dessen Konizität gleich groß ist wie die Konizität des Konus der Haltekontur (21). - Laufschaufelbindung nach Anspruch 1,
dadurch gekennzeichnet, dass die Gegenstützfläche (14) an einem Widerlagerelement (17) ausgebildet ist, das an einer Stirnseite (4) des benachbarten Ansatzes (2) befestigt ist. - Laufschaufelbindung nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet, dass die Stützfläche (13) und/oder die Gegenstützfläche (14) reibungsarm und verschleissfest ausgeführt ist/sind.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10342207A DE10342207A1 (de) | 2003-09-12 | 2003-09-12 | Laufschaufelbindung einer Turbomaschine |
| DE10342207 | 2003-09-12 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1515001A2 true EP1515001A2 (de) | 2005-03-16 |
| EP1515001A3 EP1515001A3 (de) | 2012-07-04 |
| EP1515001B1 EP1515001B1 (de) | 2016-11-09 |
Family
ID=34129785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP04104236.7A Expired - Lifetime EP1515001B1 (de) | 2003-09-12 | 2004-09-02 | Laufschaufelbindung einer Turbomaschine |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US7140841B2 (de) |
| EP (1) | EP1515001B1 (de) |
| JP (1) | JP2005090506A (de) |
| CN (1) | CN100374688C (de) |
| DE (1) | DE10342207A1 (de) |
| ZA (1) | ZA200407296B (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2116693A1 (de) * | 2008-05-07 | 2009-11-11 | Siemens Aktiengesellschaft | Rotor für eine Strömungsmaschine |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2436597A (en) * | 2006-03-27 | 2007-10-03 | Alstom Technology Ltd | Turbine blade and diaphragm |
| US20090202344A1 (en) * | 2008-02-13 | 2009-08-13 | General Electric Company | Rotating assembly for a turbomachine |
| EP2213837A1 (de) * | 2009-01-29 | 2010-08-04 | Siemens Aktiengesellschaft | Turbinenschaufelsystem |
| JP5491325B2 (ja) * | 2010-08-26 | 2014-05-14 | 三菱重工業株式会社 | 動翼及び回転機械 |
| US10047609B2 (en) * | 2012-09-25 | 2018-08-14 | United Technologies Corporation | Airfoil array with airfoils that differ in geometry according to geometry classes |
| US10465531B2 (en) | 2013-02-21 | 2019-11-05 | General Electric Company | Turbine blade tip shroud and mid-span snubber with compound contact angle |
| US9464530B2 (en) | 2014-02-20 | 2016-10-11 | General Electric Company | Turbine bucket and method for balancing a tip shroud of a turbine bucket |
| JP5836410B2 (ja) * | 2014-02-27 | 2015-12-24 | 三菱重工業株式会社 | 動翼及び回転機械 |
| EP3085890B1 (de) * | 2015-04-22 | 2017-12-27 | Ansaldo Energia Switzerland AG | Schaufel mit spitzenverkleidung |
| FR3137121B1 (fr) * | 2022-06-22 | 2024-06-21 | Safran Aircraft Engines | Ensemble aubagé à liaison inter-plateformes par élément roulant interposé |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4257743A (en) | 1978-03-24 | 1981-03-24 | Tokyo Shibaura Denki Kabushiki Kaisha | Coupling devices of moving blades of steam turbines |
| DE3517283A1 (de) | 1985-05-14 | 1986-11-20 | MAN Gutehoffnungshütte GmbH, 4200 Oberhausen | Bindung von laufschaufeln einer thermischen turbomaschine |
| JPS63132801U (de) | 1987-02-20 | 1988-08-30 | ||
| JPH01152003U (de) | 1988-04-12 | 1989-10-19 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2283901A (en) * | 1940-03-16 | 1942-05-26 | Westinghouse Electric & Mfg Co | Turbine blading |
| US2942843A (en) * | 1956-06-15 | 1960-06-28 | Westinghouse Electric Corp | Blade vibration damping structure |
| JPS5632441B2 (de) * | 1973-11-30 | 1981-07-28 | ||
| JPS572405A (en) * | 1980-06-05 | 1982-01-07 | Hitachi Ltd | Rotary blade connector of axial-flow rotary machine |
| US4407634A (en) * | 1981-09-08 | 1983-10-04 | Northern Engineering Industries Plc | Axial-flow steam turbine wheel |
| DE3211073A1 (de) * | 1982-03-25 | 1983-10-06 | Kraftwerk Union Ag | Einrichtung zur schwingungsdaempfung an einem leitschaufelkranz |
| JPS6149103A (ja) * | 1984-08-16 | 1986-03-11 | Toshiba Corp | タ−ビン動翼連結装置 |
| JP3933130B2 (ja) * | 2001-08-03 | 2007-06-20 | 株式会社日立製作所 | タービン動翼 |
-
2003
- 2003-09-12 DE DE10342207A patent/DE10342207A1/de not_active Ceased
-
2004
- 2004-09-02 EP EP04104236.7A patent/EP1515001B1/de not_active Expired - Lifetime
- 2004-09-08 JP JP2004261398A patent/JP2005090506A/ja not_active Withdrawn
- 2004-09-09 US US10/936,575 patent/US7140841B2/en not_active Expired - Fee Related
- 2004-09-10 ZA ZA2004/07296A patent/ZA200407296B/en unknown
- 2004-09-13 CN CNB2004100752300A patent/CN100374688C/zh not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4257743A (en) | 1978-03-24 | 1981-03-24 | Tokyo Shibaura Denki Kabushiki Kaisha | Coupling devices of moving blades of steam turbines |
| DE3517283A1 (de) | 1985-05-14 | 1986-11-20 | MAN Gutehoffnungshütte GmbH, 4200 Oberhausen | Bindung von laufschaufeln einer thermischen turbomaschine |
| DE3517283C2 (de) | 1985-05-14 | 1988-05-19 | Man Gutehoffnungshuette Gmbh, 4200 Oberhausen, De | |
| JPS63132801U (de) | 1987-02-20 | 1988-08-30 | ||
| JPH01152003U (de) | 1988-04-12 | 1989-10-19 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2116693A1 (de) * | 2008-05-07 | 2009-11-11 | Siemens Aktiengesellschaft | Rotor für eine Strömungsmaschine |
Also Published As
| Publication number | Publication date |
|---|---|
| US20050111983A1 (en) | 2005-05-26 |
| US7140841B2 (en) | 2006-11-28 |
| DE10342207A1 (de) | 2005-04-07 |
| CN1594841A (zh) | 2005-03-16 |
| EP1515001A3 (de) | 2012-07-04 |
| CN100374688C (zh) | 2008-03-12 |
| JP2005090506A (ja) | 2005-04-07 |
| EP1515001B1 (de) | 2016-11-09 |
| ZA200407296B (en) | 2005-08-31 |
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