EP2520767A1 - Gas turbine balancing device - Google Patents
Gas turbine balancing device Download PDFInfo
- Publication number
- EP2520767A1 EP2520767A1 EP12003249A EP12003249A EP2520767A1 EP 2520767 A1 EP2520767 A1 EP 2520767A1 EP 12003249 A EP12003249 A EP 12003249A EP 12003249 A EP12003249 A EP 12003249A EP 2520767 A1 EP2520767 A1 EP 2520767A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- annular groove
- balancing
- rotor
- tool
- turbine
- 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.)
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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
- F01D9/00—Stators
- F01D9/06—Fluid supply conduits to nozzles or the like
- F01D9/065—Fluid supply or removal conduits traversing the working fluid flow, e.g. for lubrication-, cooling-, or sealing fluids
-
- 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
- F01D5/02—Blade-carrying members, e.g. rotors
- F01D5/027—Arrangements for balancing
Definitions
- the invention relates to a balancing device, in particular to a gas turbine balancing device, by means of which it is possible to make a balancing of the intermediate or high-pressure shaft in the mounted state of the gas turbine.
- the balancing of the high and low pressure waves takes place in different steps.
- the individual rotor drums are gewuchet.
- material is generally taken at predetermined locations on the drum.
- the balancing of the assembled individual drums takes place.
- small corrections are then made on the low pressure shaft, e.g. by attaching weights to the freely accessible fan (fan). This is due to the lack of accessibility, not readily possible on the high pressure shaft.
- the US 5,545,010 A describes a method of incorporating or removing weights from an additionally attached ring. Accessibility is established via the gas path.
- the US 4,803,893 A describes a method in which in the disk contour of a turbine disk, an additional recess is provided in the special Balancing weights are mountable. Accessibility is not described here.
- the invention has for its object to provide a gas turbine balancing device, which ensures a high degree of efficiency with a simple design and simple, reliable operation.
- At least one annular groove extending in a radial plane to an engine axis is provided.
- at least one balancing body is arranged in this at least one annular groove which is formed on the outer circumference of at least one high-pressure rotor of a high-pressure compressor.
- the one or more balancing body according to the invention in the circumferential direction along the annular groove slidably and fixed in the respective desired position by means of a fixing device.
- several such balancing bodies are used in order to be able to produce, for example, with two balancing bodies of the same mass by displacement, a counter imbalance of any size and direction.
- the fixing device which is designed for example in the form of a screw (grub screw) or the like, can be actuated by means of a tool in the installed state of the gas turbine.
- an access opening (borescope opening, mounting opening or the like) is particularly preferably used, so that additional adjustments of the engine housing are not or only to a limited extent required.
- both the balancing body and the parts used for the fixing are designed to be captive.
- the balancing body and the parts used for the fixing are designed to be captive.
- the balancing device according to the invention can thus be formed in a preferred manner, without significant changes to existing components are required.
- the annular groove can either be additionally introduced, but it is also possible to use an already existing groove, which is used for example for air extraction, with.
- the inventive design it is also possible to pre-install balancing weights so that they must be moved only for fine balancing after assembly of the engine.
- the balancing device according to the invention is thus repeatedly used and can be adjusted at any time. This proves to be particularly advantageous even if during operation of the Engine, for example, by wear or damage, imbalances occur that are to be compensated.
- the Fig. 1 shows a schematic representation of a gas turbine engine according to the present invention.
- the gas turbine engine 10 is an example of a turbomachine to which the invention may find application. However, it will be understood from the following that the invention can be used with other turbomachinery as well.
- the engine 10 is conventionally formed and includes in the flow direction one after another an air inlet 11, a fan 12 circulating in a housing, an intermediate pressure compressor 13, a high pressure compressor 14, combustion chambers 15, a high pressure turbine 16, an intermediate pressure turbine 17 and a low pressure turbine 18 and an exhaust nozzle 19, which are all arranged around a central engine axis 1.
- the intermediate pressure compressor 13 and the high pressure compressor 14 each include a plurality of stages, each of which includes a circumferentially extending array of fixed stationary vanes 20, commonly referred to as stator vanes, that radially inwardly from the engine casing 21 in an annular flow passage through the compressors 13, 14 protrude.
- the compressors further include an array of compressor blades 22 projecting radially outwardly from a rotatable drum or disc 26 coupled to hubs 27 of the high pressure turbine 16 and the intermediate pressure turbine 17, respectively.
- the turbine sections 16, 17, 18 have similar stages, comprising an array of fixed vanes 23 projecting radially inward from the housing 21 into the annular flow passage through the turbines 16, 17, 18, and a downstream array of turbine blades 24 projecting outwardly from a rotatable hub 27.
- the compressor drum or compressor disk 26 and the vanes 22 disposed thereon and the turbine rotor hub 27 and the turbine blades 24 disposed thereon rotate about the engine axis 1 during operation.
- a high-pressure rotor 31 comprises a profiled annular groove 29, which extends around its circumference and in which one or more balancing bodies 30 are inserted. These are displaceable along the annular groove 29.
- the balancing body 30 comprises an internal thread 36, in which a clamping screw 32 (grub screw) is screwed.
- a clamping screw 32 grub screw
- FIGS. 2 and 3 also show an inner housing 38, which supports stator blades 40, and an outer housing 39.
- Rotor blades 32 are mounted on the rotor 31 in the usual way, as known from the prior art.
- the outer housing 39 has at least one access opening 35, through which a tool 33 can be inserted.
- the tool 33 is formed, for example in the form of a screwdriver, to rotate the clamping screw 32.
- an auxiliary tool 42 is provided, which is inserted into the access opening 35 and is supported in an opening 43 of the inner housing 38 to guide the tool 33.
- the Fig. 3 shows a state in the balanced, mounted state in which the tool 33 and the auxiliary tool 42 have been removed.
- a closure element 34 is inserted.
- the Fig. 4 shows an embodiment in which the introduction of the tool 33 is effected by a slot 44, which is provided in the inner housing 38 for air extraction and can be shared.
- the Fig. 5 shows a further embodiment in which the annular groove 29 at a joining region of two components 31 a, 31 b of the high-pressure rotor 31 is formed.
- the annular groove 29 is in communication with an air removal opening 45, for example for turbine cooling, so that, apart from the structuring of the cross section of the annular groove 29, no further changes must be performed.
- the invention thus provides a groove or an annular gap in the high pressure rotor of a turbine engine, in which the groove adapted balancing body are used.
- the annular gap can in particular be combined with any required air withdrawals in the compressor rotor (eg for turbine cooling), as is often the case in modern compressors available. These are most easily realized by an annular gap that arises between two bolted parts (eg front and rear rotor drum).
- the balancing bodies comprise an internal thread, in which a grub screw is screwed in to secure, which is supported against the rotor. The falling out of the screws can be prevented by a self-assurance or appropriate geometry.
- these balancing bodies are then displaced or rotated in the circumferential direction in order to produce a suitable counterbalance.
- the rotation of the balancing body takes place, for example. by retaining the same and relative rotation of the rotor.
- auxiliary tool can be used. After mounting the grub screws, the auxiliary tool and the tool are removed and the cavity is closed with a plug (closure element), so that the tightness of the inner and outer housing is ensured.
- the radially far outward and preferably centered between the bearings position of the balancing body used is vorteihaft to compensate for the residual imbalance. Even a small change in position leads to a relatively large influence on the imbalance at comparatively low mass of the balancing body.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
Description
Die Erfindung bezieht sich auf eine Auswuchtvorrichtung, insbesondere auf eine Gasturbinenauswuchtvorrichtung, mittels derer es möglich ist, im montierten Zustand der Gasturbine eine Auswuchtung der Zwischen- oder Hochdruckwelle vorzunehmen.The invention relates to a balancing device, in particular to a gas turbine balancing device, by means of which it is possible to make a balancing of the intermediate or high-pressure shaft in the mounted state of the gas turbine.
Gegenwärtig erfolgt das Wuchten der Hoch- und Niederdruckwelle in verschiedenen Schritten. Zuerst werden die einzelnen Rotortrommeln gewuchet. Dazu wird generell Material an vorher festgelegten Stellen an der Trommel entnommen. Danach erfolgt das Wuchten der zusammengebauten Einzeltrommeln. Nach Zusammenbau des kompletten Triebwerkes werden dann an der Niederdruckwelle kleine Korrekturen durchgeführt z.B. durch das Anbringen von Gewichten am frei zugänglichen Bläser (Fan). Dies ist an der Hochdruckwelle, wegen der mangelnden Zugänglichkeit, nicht ohne Weiteres möglich.Currently, the balancing of the high and low pressure waves takes place in different steps. First, the individual rotor drums are gewuchet. For this purpose, material is generally taken at predetermined locations on the drum. After that, the balancing of the assembled individual drums takes place. After assembling the complete engine, small corrections are then made on the low pressure shaft, e.g. by attaching weights to the freely accessible fan (fan). This is due to the lack of accessibility, not readily possible on the high pressure shaft.
Die Restunwucht in der Hochdruckwelle und andere Ursachen können zu Vibrationen führen und zur Zurückweisung des Triebwerkes. Ein Verfahren zum Feinwuchten der Hochdruckwelle im zusammengebauten Triebwerk würde diesen Nachteil vermeiden, da damit auftretenden Vibrationen durch das Aufbringen einer gezielten Gegenunwucht entgegengewirkt werden kann.The residual imbalance in the high pressure shaft and other causes can lead to vibrations and to the rejection of the engine. A method for fine balancing the high pressure shaft in the assembled engine would avoid this disadvantage, since thus occurring vibrations can be counteracted by the application of a targeted counterbalancing.
Die
Die
Die
Die Lösung gemäß
Die Lösung gemäß
Alle bekannten Verfahren sind nur auf Turbinen- oder ggf. vordere Verdichterstufen anwendbar. Eine zufriedenstellende Zugänglichkeit im zusammengebauten Zustand eines modernen Axialkompressors ist nicht gegeben oder nur eingeschränkt möglich. Wuchtgewichte lassen sich ausschließlich am vorderen oder hinteren Ende des Hochdruckrotors nahe der Lager und auf teils geringem Durchmesser anbringen. Dies ist rotordynamisch nicht sehr effektiv und erfordert entsprechend massive Gewichte. Auch sind bei allen beschriebenen Verfahren spezielle zusätzliche Teile und erhebliche Anpassungen der umgebenden Bauteile erforderlich. Dies ist mit entsprechendem Gewicht und zusätzlichen Kosten verbunden.All known methods are only applicable to turbine or possibly front compressor stages. A satisfactory accessibility in the assembled state of a modern axial compressor is not given or only partially possible. Balance weights can be attached only at the front or rear end of the high-pressure rotor near the bearings and partly small diameter. This is not very effective in terms of rotor dynamics and requires correspondingly massive weights. Also, all of the described methods require special additional parts and significant adjustments to the surrounding components. This is associated with corresponding weight and additional costs.
Der Erfindung liegt die Aufgabe zugrunde, eine Gasturbinenauswuchtvorrichtung zu schaffen, welche bei einfachem Aufbau und einfacher, betriebssicherer Bedienbarkeit ein hohes Maß von Effizienz gewährleistet.The invention has for its object to provide a gas turbine balancing device, which ensures a high degree of efficiency with a simple design and simple, reliable operation.
Erfindungsgemäß wird die Aufgabe durch die Merkmalskombination des Anspruchs 1 gelöst, die Unteransprüche beschreiben weitere vorteilhafte Ausgestaltungen der Erfindung.According to the invention the object is achieved by the feature combination of claim 1, the subclaims describe further advantageous embodiments of the invention.
Erfindungsgemäß ist somit vorgesehen, dass zumindest eine sich in einer radialen Ebene zu einer Triebwerksachse erstreckende Ringnut vorgesehen ist. In dieser zumindest einen Ringnut, welche am Außenumfang zumindest eines Hochdruckrotors eines Hochdruckkompressors ausgebildet ist, ist zumindest ein Wuchtkörper angeordnet. Der oder die Wuchtkörper sind erfindungsgemäß in Umfangsrichtung längs der Ringnut verschiebbar und in der jeweils gewünschten Position mittels einer Fixiervorrichtung fixierbar. Bevorzugterweise werden mehrere derartige Wuchtkörper verwendet, um z.B. mit zwei Wuchtkörpern gleicher Masse durch Verschieben eine Gegenunwucht beliebiger Größe und Richtung erzeugen zu können. Die Fixiervorrichtung, welche beispielsweise in Form einer Schraube (Madenschraube) oder Ähnlichem ausgebildet ist, ist mittels eines Werkzeugs im montierten Zustand der Gasturbine betätigbar. Besonders bevorzugt wird dabei eine Zugangsöffnung (Boroskop-Öffnung, Montage-Öffnung oder Ähnliches) verwendet, so dass zusätzliche Anpassungen des Triebwerksgehäuses nicht oder nur in geringem Umfang erforderlich sind.According to the invention, it is thus provided that at least one annular groove extending in a radial plane to an engine axis is provided. In this at least one annular groove which is formed on the outer circumference of at least one high-pressure rotor of a high-pressure compressor, at least one balancing body is arranged. The one or more balancing body according to the invention in the circumferential direction along the annular groove slidably and fixed in the respective desired position by means of a fixing device. Preferably, several such balancing bodies are used in order to be able to produce, for example, with two balancing bodies of the same mass by displacement, a counter imbalance of any size and direction. The fixing device, which is designed for example in the form of a screw (grub screw) or the like, can be actuated by means of a tool in the installed state of the gas turbine. In this case, an access opening (borescope opening, mounting opening or the like) is particularly preferably used, so that additional adjustments of the engine housing are not or only to a limited extent required.
Besonders vorteilhaft ist es, wenn sowohl die Wuchtkörper als auch die zur Fixierung dienenden Teile wie etwa Schrauben, Madenschrauben oder Ähnliches, verliersicher ausgebildet sind. Somit ist es möglich, den Wuchtvorgang durchzuführen, ohne dass das Triebwerk demontiert werden muss und ohne dass die Gefahr besteht, dass einzelne Teile sich lösen und in das Triebwerk gelangen.It is particularly advantageous if both the balancing body and the parts used for the fixing, such as screws, grub screws or the like, are designed to be captive. Thus, it is possible to perform the balancing operation, without the engine must be dismantled and without the risk that individual parts dissolve and get into the engine.
Die erfindungsgemäße Auswuchtvorrichtung kann somit in bevorzugter Weise ausgebildet werden, ohne dass wesentliche Änderungen an vorhandenen Bauelementen erforderlich sind. Die Ringnut kann entweder zusätzlich eingebracht werden, es ist jedoch auch möglich, eine bereits vorhandene Nut, welche beispielsweise zur Luftentnahme genutzt wird, mit zu verwenden.The balancing device according to the invention can thus be formed in a preferred manner, without significant changes to existing components are required. The annular groove can either be additionally introduced, but it is also possible to use an already existing groove, which is used for example for air extraction, with.
Durch die erfindungsgemäße Ausgestaltung ist es weiterhin möglich, Wuchtgewichte vorzuinstallieren, so dass diese lediglich zum Feinwuchten nach dem Zusammenbau des Triebwerks verschoben werden müssen. Die erfindungsgemäße Wuchtvorrichtung ist somit wiederholt verwendbar und kann jederzeit eingestellt werden. Dies erweist sich insbesondere auch dann als besonders vorteilhaft, wenn während des Betriebs des Triebwerks, beispielsweise durch Verschleiß oder Beschädigungen, Unwuchten auftreten, die kompensiert werden sollen.The inventive design, it is also possible to pre-install balancing weights so that they must be moved only for fine balancing after assembly of the engine. The balancing device according to the invention is thus repeatedly used and can be adjusted at any time. This proves to be particularly advantageous even if during operation of the Engine, for example, by wear or damage, imbalances occur that are to be compensated.
Im Folgenden wird die Erfindung anhand von Ausführungsbeispielen in Verbindung mit der Zeichnung beschrieben. Dabei zeigt:
- Fig. 1
- eine schematische Darstellung eines Gasturbinentriebwerks gemäß der vorliegenden Erfindung;
- Fig. 2
- eine schematische Teil-Ansicht eines erfindungsgemäßen Ausführungsbeispiels mit eingesetztem Werkzeug;
- Fig. 3
- eine Ansicht, analog
Fig. 2 , nach erfolgter Einstellung und entferntem Werkzeug; - Fig. 4
- ein weiteres Ausführungsbeispiel der erfindungsgemäßen Wuchtvorrichtung; und
- Fig. 5
- eine Detail-Ansicht eines weiteren Ausführungsbeispiels der Erfindung.
- Fig. 1
- a schematic representation of a gas turbine engine according to the present invention;
- Fig. 2
- a schematic partial view of an embodiment of the invention with inserted tool;
- Fig. 3
- a view, analog
Fig. 2 after adjustment and removed tool; - Fig. 4
- a further embodiment of the balancing device according to the invention; and
- Fig. 5
- a detailed view of another embodiment of the invention.
Die
Das Gasturbinentriebwerk 10 gemäß
Der Zwischendruckkompressor 13 und der Hochdruckkompressor 14 umfassen jeweils mehrere Stufen, von denen jede eine in Umfangsrichtung verlaufende Anordnung fester stationärer Leitschaufeln 20 aufweist, die allgemein als Statorschaufeln bezeichnet werden und die radial nach innen vom Triebwerksgehäuse 21 in einem ringförmigen Strömungskanal durch die Kompressoren 13, 14 vorstehen. Die Kompressoren weisen weiter eine Anordnung von Kompressorlaufschaufeln 22 auf, die radial nach außen von einer drehbaren Trommel oder Scheibe 26 vorstehen, die mit Naben 27 der Hochdruckturbine 16 bzw. der Zwischendruckturbine 17 gekoppelt sind.The
Die Turbinenabschnitte 16, 17, 18 weisen ähnliche Stufen auf, umfassend eine Anordnung von festen Leitschaufeln 23, die radial nach innen vom Gehäuse 21 in den ringförmigen Strömungskanal durch die Turbinen 16, 17, 18 vorstehen, und eine nachfolgende Anordnung von Turbinenschaufeln 24, die nach außen von einer drehbaren Nabe 27 vorstehen. Die Kompressortrommel oder Kompressorscheibe 26 und die darauf angeordneten Schaufeln 22 sowie die Turbinenrotornabe 27 und die darauf angeordneten Turbinenlaufschaufeln 24 drehen sich im Betrieb um die Triebwerksachse 1.The
Bei den nachfolgenden Ausführungsbeispielen sind gleiche Teile mit gleichen Bezugsziffern versehen.In the following embodiments, like parts are given the same reference numerals.
Die
Wie insbesondere im Zusammenhang mit
Die
Das äußere Gehäuse 39 weist zumindest eine Zugangsöffnung 35 auf, durch welche ein Werkzeug 33 einführbar ist. Das Werkzeug 33 ist beispielsweise in Form eines Schraubendrehers ausgebildet, um die Klemmschraube 32 zu verdrehen. Zur Führung des Werkzeugs 33 ist ein Hilfswerkzeug 42 vorgesehen, welches in die Zugangsöffnung 35 eingesetzt wird und in einer Öffnung 43 des inneren Gehäuses 38 gehaltert ist, um das Werkzeug 33 zu führen.The
Die
Die
Die
Die Erfindung sieht somit eine Nut oder einen Ringspalt im Hochdruckrotor eines Turbinentriebwerks vor, in die der Nut angepaßte Wuchtkörper eingesetzt werden. Der Ringspalt kann insbesondere mit ggf. erforderlichen Luftentnahmen im Verdichterrotor (z.B. zur Turbinenkühlung) kombiniert werden, wie sie in moderen Kompressoren oft vorhanden sind. Diese werden am einfachsten durch einen Ringspalt realisiert der zwischen zwei verschraubten Teilen (z.B. vordere und hintere Rotortrommel) entsteht.The invention thus provides a groove or an annular gap in the high pressure rotor of a turbine engine, in which the groove adapted balancing body are used. The annular gap can in particular be combined with any required air withdrawals in the compressor rotor (eg for turbine cooling), as is often the case in modern compressors available. These are most easily realized by an annular gap that arises between two bolted parts (eg front and rear rotor drum).
Die Wuchtkörper umfassen ein Innengewinde, in dem zur Sicherung eine Madenschraube eingedreht ist, die sich gegen den Rotor abstützt. Das Herausfallen der Schrauben kann durch eine Selbstsicherung oder entsprechende Geometrie verhindert werden.The balancing bodies comprise an internal thread, in which a grub screw is screwed in to secure, which is supported against the rotor. The falling out of the screws can be prevented by a self-assurance or appropriate geometry.
Zum Feinwuchten werden dann diese Wuchtkörper (vorzugsweise zwei oder mehr) in Umfangsrichtung verschoben oder verdreht, um eine geeignete Gegenunwucht zu erzeugen. Das Verdrehen der Wuchtkörper erfolgt dabei z.B. durch Festhalten derselbigen und relatives Verdrehen des Rotors.For fine balancing, these balancing bodies (preferably two or more) are then displaced or rotated in the circumferential direction in order to produce a suitable counterbalance. The rotation of the balancing body takes place, for example. by retaining the same and relative rotation of the rotor.
Die Zugänglichkeit zum Festhalten, Lösen und Festziehen der Madenschrauben wird über die Gehäuse gewährleistet. Zur Führung des Montagewerkzeuges kann ein Hilfswerkzeug verwendet werden. Nach der Montage der Madenschrauben werden das Hilfswerkzeug sowie das Werkzeug entfernt und der Hohlraum mit einem Stöpsel (Verschlusselement) verschlossen, damit die Dichtigkeit der inneren und äußeren Gehäuse gewährleistet ist.The accessibility to hold, loosen and tighten the grub screws is ensured by the housing. To guide the assembly tool, an auxiliary tool can be used. After mounting the grub screws, the auxiliary tool and the tool are removed and the cavity is closed with a plug (closure element), so that the tightness of the inner and outer housing is ensured.
Alternativ ist es erfindungsgemäß möglich, sich Luftabnahmestellen im Gehäuse zu Nutzen zu machen. Durch die vorhandenen Schlitze wird das Werkzeug eingeführt. Die Nutzung dieser Luftabnahmestellen verringert die Komplexität des Stöpsels oder macht ihn überflüssig, wenn der Zugang im äußeren Gehäuse auch über die Luftabnahmestellen bewerkstelligt wird.Alternatively, it is possible according to the invention to take advantage of air intake points in the housing. Through the existing slots, the tool is introduced. The use of these air intake points reduces or eliminates the complexity of the plug if the access in the outer casing is also made through the air intake points.
Die radial weit außen und vorzugsweise mittig zwischen den Lagern liegende Position der eingesetzten Wuchtkörper ist vorteihaft zum Ausgleich der Restunwucht. Schon eine geringe Positionsänderungen führt zu einer relativ großen Beeinflußung der Unwucht bei vergleichsweise geringer Masse der Wuchtkörper.The radially far outward and preferably centered between the bearings position of the balancing body used is vorteihaft to compensate for the residual imbalance. Even a small change in position leads to a relatively large influence on the imbalance at comparatively low mass of the balancing body.
Erfindungsgemäß ergeben sich somit insbesondere folgende Vorteile:
- Ausgleich der Restunwucht am Rotor an einer von außen nicht ohne Hilfsmittel zugänglichen Position (Turbine oder Verdichter) im zusammengebauten Zustand des Triebwerkes;
- Ausgleich von Unwuchten nach Reparaturen an Rotorschaufeln oder Ähnliches;
- Wuchten im rotordynamisch optimalen Bereich (weit außen und in der Mitte des Rotors) und daher mit geringstmöglichem zusätzlichem Gewicht;
- Minimierung zusätzlicher Bauteile und damit verbunden geringen Kosten und geringem Gewicht;
- Einfache Implementierung in existierende Triebwerke durch weitgehende Nutzung existierender oder ähnlicher Teile.
- Compensation of the residual imbalance on the rotor at an externally unavailable position (turbine or compressor) in the assembled state of the engine;
- Compensation of imbalance after repairs to rotor blades or the like;
- Balancing in the rotor dynamic optimum range (far outside and in the middle of the rotor) and therefore with the lowest possible additional weight;
- Minimization of additional components and associated low costs and low weight;
- Easy implementation into existing engines through extensive use of existing or similar parts.
- 11
- TriebwerksachseEngine axis
- 1010
- GasturbinentriebwerkGas turbine engine
- 1111
- Lufteinlassair intake
- 1212
- im Gehäuse umlaufender Fanin the housing revolving fan
- 1313
- ZwischendruckkompressorIntermediate pressure compressor
- 1414
- HochdruckkompressorHigh pressure compressor
- 1515
- Brennkammerncombustors
- 1616
- HochdruckturbineHigh-pressure turbine
- 1717
- ZwischendruckturbineIntermediate pressure turbine
- 1818
- NiederdruckturbineLow-pressure turbine
- 1919
- Abgasdüseexhaust nozzle
- 2020
- Leitschaufelnvanes
- 2121
- TriebwerksgehäuseEngine casing
- 2222
- KompressorlaufschaufelnCompressor blades
- 2323
- Leitschaufelnvanes
- 2424
- Turbinenschaufelnturbine blades
- 2626
- Kompressortrommel oder -ScheibeCompressor drum or disc
- 2727
- TurbinenrotornabeTurbinenrotornabe
- 2828
- Auslasskonusoutlet cone
- 2929
- Ringnutring groove
- 3030
- Wuchtkörperbalancing body
- 3131
- Hochdruck-RotorHigh pressure rotor
- 3232
- Klemmschraubeclamping screw
- 3333
- WerkzeugTool
- 3434
- Verschlusselementclosure element
- 3535
- Zugangsöffnungaccess opening
- 3636
- Innengewindeinner thread
- 3737
- Fußfoot
- 3838
- Inneres GehäuseInner housing
- 3939
- Äußeres GehäuseOuter case
- 4040
- Statorschaufelstator
- 4141
- Rotorschaufelrotor blade
- 4242
- Hilfswerkzeugauxiliary tool
- 4343
- Öffnungopening
- 4444
- Schlitzslot
- 4545
- LuftentnahmeöffnungAir discharge opening
Claims (8)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011100783A DE102011100783A1 (en) | 2011-05-06 | 2011-05-06 | Gasturbinenauswuchtvorrichtung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2520767A1 true EP2520767A1 (en) | 2012-11-07 |
EP2520767B1 EP2520767B1 (en) | 2018-02-14 |
Family
ID=46178382
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12003249.5A Active EP2520767B1 (en) | 2011-05-06 | 2012-05-03 | Gas turbine rotor balance weight |
Country Status (3)
Country | Link |
---|---|
US (1) | US9017029B2 (en) |
EP (1) | EP2520767B1 (en) |
DE (1) | DE102011100783A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015112344A1 (en) * | 2014-01-21 | 2015-07-30 | United Technologies Corporation | Turbine engine balancing structure and method |
EP3587733A1 (en) * | 2018-06-21 | 2020-01-01 | United Technologies Corporation | System and method for balancing a rotor in an assembled engine |
Families Citing this family (8)
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GB201409242D0 (en) * | 2014-05-23 | 2014-07-09 | Rolls Royce Plc | Screw tool |
GB201409245D0 (en) * | 2014-05-23 | 2014-07-09 | Rolls Royce Plc | Rotor balancing |
US10087785B2 (en) * | 2015-02-09 | 2018-10-02 | United Technologies Corporation | Mid-turbine frame assembly for a gas turbine engine |
US11105203B2 (en) * | 2018-01-29 | 2021-08-31 | Carrier Corporation | High efficiency centrifugal impeller with balancing weights |
DE102019111211A1 (en) * | 2019-04-30 | 2020-11-05 | Rolls-Royce Deutschland Ltd & Co Kg | Device for setting a balancing state of a rotating part of a gas turbine engine, a balancing body and a gas turbine engine for an aircraft |
JP7196120B2 (en) * | 2020-02-10 | 2022-12-26 | 三菱重工業株式会社 | turbine wheel |
US11732585B2 (en) * | 2021-01-28 | 2023-08-22 | General Electric Company | Trapped rotatable weights to improve rotor balance |
FR3135110A1 (en) * | 2022-04-29 | 2023-11-03 | Safran Aircraft Engines | Aeronautical turbomachine with improved balancing device and process for balancing the turbomachine |
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EP1602855A2 (en) * | 2004-06-01 | 2005-12-07 | General Electric Company | Balancing assembly for turbine rotor |
EP1726780A2 (en) * | 2005-05-26 | 2006-11-29 | Rolls-Royce Deutschland Ltd & Co KG | Device for a precision balancing of turbine rotors |
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CZ122696A3 (en) | 1993-11-02 | 1996-12-11 | Neurobiological Technologies | The use of crf corticotropin releasing factor or analogs thereof for preparing a therapeutical preparation |
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EP2397651A1 (en) | 2010-06-17 | 2011-12-21 | Siemens Aktiengesellschaft | Balance correction weight providing constant mass |
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2011
- 2011-05-06 DE DE102011100783A patent/DE102011100783A1/en not_active Withdrawn
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2012
- 2012-05-03 EP EP12003249.5A patent/EP2520767B1/en active Active
- 2012-05-04 US US13/463,919 patent/US9017029B2/en active Active
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US4064762A (en) * | 1975-04-28 | 1977-12-27 | Stal-Laval Turbin Ab | Method and apparatus for balancing a rotor |
US3985465A (en) * | 1975-06-25 | 1976-10-12 | United Technologies Corporation | Turbomachine with removable stator vane |
JPS5572937A (en) * | 1978-11-29 | 1980-06-02 | Hitachi Ltd | Balance weight for rotary body |
US4803893A (en) | 1987-09-24 | 1989-02-14 | United Technologies Corporation | High speed rotor balance system |
US4898514A (en) | 1987-10-27 | 1990-02-06 | United Technologies Corporation | Turbine balance arrangement with integral air passage |
FR2630496A1 (en) * | 1988-04-20 | 1989-10-27 | Snecma | Unbalance correction device for a turbine machine rotor |
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EP1602855A2 (en) * | 2004-06-01 | 2005-12-07 | General Electric Company | Balancing assembly for turbine rotor |
EP1726780A2 (en) * | 2005-05-26 | 2006-11-29 | Rolls-Royce Deutschland Ltd & Co KG | Device for a precision balancing of turbine rotors |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015112344A1 (en) * | 2014-01-21 | 2015-07-30 | United Technologies Corporation | Turbine engine balancing structure and method |
US10544679B2 (en) | 2014-01-21 | 2020-01-28 | United Technologies Corporation | Turbine engine balancing structure and method |
EP3587733A1 (en) * | 2018-06-21 | 2020-01-01 | United Technologies Corporation | System and method for balancing a rotor in an assembled engine |
US10954793B2 (en) | 2018-06-21 | 2021-03-23 | Raytheon Technologies Corporation | System and method for balancing a rotor in an assembled engine |
Also Published As
Publication number | Publication date |
---|---|
US20120282082A1 (en) | 2012-11-08 |
EP2520767B1 (en) | 2018-02-14 |
DE102011100783A1 (en) | 2012-11-08 |
US9017029B2 (en) | 2015-04-28 |
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