EP1350924B1 - Fastening of nozzle segments in a gas turbine - Google Patents

Fastening of nozzle segments in a gas turbine Download PDF

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Publication number
EP1350924B1
EP1350924B1 EP03003358A EP03003358A EP1350924B1 EP 1350924 B1 EP1350924 B1 EP 1350924B1 EP 03003358 A EP03003358 A EP 03003358A EP 03003358 A EP03003358 A EP 03003358A EP 1350924 B1 EP1350924 B1 EP 1350924B1
Authority
EP
European Patent Office
Prior art keywords
stator vane
housing
vane span
casing
stator blade
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.)
Expired - Fee Related
Application number
EP03003358A
Other languages
German (de)
French (fr)
Other versions
EP1350924A2 (en
EP1350924A3 (en
Inventor
Christian Seydel
Andrej Golowin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rolls Royce Deutschland Ltd and Co KG
Original Assignee
Rolls Royce Deutschland Ltd and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Rolls Royce Deutschland Ltd and Co KG filed Critical Rolls Royce Deutschland Ltd and Co KG
Publication of EP1350924A2 publication Critical patent/EP1350924A2/en
Publication of EP1350924A3 publication Critical patent/EP1350924A3/en
Application granted granted Critical
Publication of EP1350924B1 publication Critical patent/EP1350924B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • 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
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
    • F01D25/246—Fastening of diaphragms or stator-rings
    • 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
    • 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
    • F01D9/041—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector using blades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00—Function
    • F05B2260/30—Retaining components in desired mutual position
    • F05B2260/301—Retaining bolts or nuts
    • 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
    • F05D2230/00—Manufacture
    • F05D2230/60—Assembly methods
    • F05D2230/64—Assembly methods using positioning or alignment devices for aligning or centring, e.g. pins

Definitions

  • the invention relates to a Statorschaufelsegmentbefest only for a gas turbine with a housing to which a plurality Statorschaufelsegmente are mounted.
  • Stator blades of gas turbines are usually formed as segment-like components which are inserted into a housing or attached to a housing. Constructions of the type mentioned, for example, US 6,296,443 B1.
  • stator blade segments (Vane Spans) inserted into a housing or fastened to a housing must be mounted in such a way that they are fixed on the one hand in the axial direction of the aircraft gas turbine and on the other hand in the circumferential direction of the housing.
  • they have, for example, as mentioned in the above-mentioned US patent, feet or grooves, which are correspondingly positively connected to the housing.
  • DE 21 65 529 describes a device for centering and fixing a guide ring in the housing of a turbomachine.
  • an axial end face of the guide ring is pressed by acting on an inclined plane screws against a circumferential axial stop surface on the housing.
  • the invention has for its object to provide a Statorschaufelsegmentbefestist for a gas turbine, which avoids the disadvantages of the prior art with a simple structure and cost manufacturability and enables a reliable attachment of the stator blade segments.
  • the object is achieved by the feature combination of the main claim, the subclaims show further advantageous embodiments of the invention.
  • the Statorschaufelsegmentbefest only invention is characterized by a number of significant advantages.
  • the principle underlying the invention is to clamp the Statorschaufelsegmente against the housing. These are thereby slightly deformed. In the same way, the housing can be subjected to a corresponding deformation. This deliberately induced elastic deformation eliminates tolerances or play of the fasteners. Unwanted vibrations or the like are thus completely prevented or at least greatly suppressed. Furthermore, it can be achieved by the embodiment according to the invention that the respective free ends of the stator blade segments firmly against the housing and thus do not come loose from the housing.
  • the means for clamping the stator blade segment preferably comprise an actuating element, which may be formed in a favorable embodiment of the invention in the form of a screw.
  • This screw can be performed for example in a threaded recess of the housing. It is then designed, for example, as a lag screw. Alternatively, it is also possible to use pressure screws or provide other biasing means.
  • the radius of the housing in the region of the stator vane segments is smaller than the radius of the respective stator vane segment. This ensures that the free end portions of the Statorschaufelsegmente bear against the housing and can be clamped accordingly.
  • Fig. 1 shows a perspective view of a stator blade segment, as is known per se from the prior art.
  • This comprises a plurality of stator blades, which are fastened to a circular segment-shaped outer support 6 and optionally to a circular segment-shaped inner support 7.
  • the outer support 6 and the inner support 7 may be provided with side feet or lugs or corresponding grooves to allow attachment in a housing 1 (see Fig. 3) or on an inner cover tape.
  • These embodiments are known from the prior art, so that it can be referenced.
  • Rotation of the stator blade segments 2 in the housing can be prevented by so-called vane stops.
  • the stator blade segment shown in FIG. 1 has, for example, a groove 8.
  • Fig. 2 shows a side view of the schematic operation of the invention prior to bracing.
  • a housing 1 is reproduced, while the inner circular arc represents a stator blade segment 2.
  • the reference numeral 3 refers to biasing means.
  • a tension of the stator blade segment 2 leads to the formation of a gap in its middle region, so that the free ends of the stator blade segment abut against the housing 1 or are pressed against this.
  • FIG. 2 shows that the radius of the stator blade segment 2 in the unstressed state is greater than the corresponding radius of the housing 1.
  • the biasing means 3 are formed in the form of a screw 4, which is guided in a threaded recess, not shown in detail, of the housing 1.
  • the screw is designed, for example, as a tension screw in order to deform the stator blade segment 2 in the manner described.

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)

Description

Die Erfindung bezieht sich auf eine Statorschaufelsegmentbefestigung für eine Gasturbine mit einem Gehäuse, an welchem mehrere Statorschaufelsegmente gelagert sind.The invention relates to a Statorschaufelsegmentbefestigung for a gas turbine with a housing to which a plurality Statorschaufelsegmente are mounted.

Statorschaufeln von Gasturbinen werden üblicherweise als segmentartige Bauteile ausgebildet, die in ein Gehäuse eingesetzt bzw. an einem Gehäuse befestigt werden. Konstruktionen der genannten Art zeigt beispielsweise die US 6,296,443 B1.Stator blades of gas turbines are usually formed as segment-like components which are inserted into a housing or attached to a housing. Constructions of the type mentioned, for example, US 6,296,443 B1.

Die einzelnen in ein Gehäuse eingesetzten bzw. an einem Gehäuse befestigten Statorschaufelsegmente (Vane Spans) müssen so gelagert werden, dass sie zum einen in axialer Richtung der Fluggasturbine und zum anderen in Umfangsrichtung des Gehäuses festgelegt sind. Hierzu weisen sie beispielsweise, wie in der oben genannten US-Schrift erwähnt, Füße oder Nuten auf, die entsprechend formschlüssig mit dem Gehäuse verbunden sind. Beim Betrieb der Statorschaufelsegmente in Kompressoren oder Verdichtern treten zum einen hohe mechanische Belastungen auf, zum anderen können Temperaturwechsel zu Änderungen der bei der Befestigung gewählten Passungen führen. Hierbei besteht die Gefahr, dass Schwingungen oder Vibrationen auftreten, die zum einen zu unerwünschter Geräuschentwicklung führen und zum anderen die mechanische Festigkeit der Statorschaufelsegmente sowie deren Lagerung beeinträchtigen.The individual stator blade segments (Vane Spans) inserted into a housing or fastened to a housing must be mounted in such a way that they are fixed on the one hand in the axial direction of the aircraft gas turbine and on the other hand in the circumferential direction of the housing. For this purpose, they have, for example, as mentioned in the above-mentioned US patent, feet or grooves, which are correspondingly positively connected to the housing. When operating the stator blade segments in compressors or compressors, on the one hand, high mechanical loads occur, on the other hand, temperature changes can lead to changes in the fittings selected during the fastening. There is a risk that vibrations or vibrations occur, on the one hand lead to unwanted noise and on the other hand affect the mechanical strength of the stator blade segments and their storage.

Aus der DE 826 673 ist eine Leitschaufelbefestigung bekannt, bei der Statorschaufelsegmente in radialen Führungen am Gehäuse gehalten sind und die aneinander grenzenden Enden der Segmente Keilflächen aufweisen, die durch federnd am Gehäuse gehaltene Keilflächendruckstücke zusammengepresst werden.From DE 826 673 a stator blade mounting is known, are held in the stator blade segments in radial guides on the housing and the adjacent ends of the segments have wedge surfaces which are pressed together by resiliently held on the housing wedge surface pressure pieces.

Die DE 21 65 529 beschreibt eine Einrichtung zum Zentrieren und Fixieren eines Leitkranzes im Gehäuse einer Strömungsmaschine. Dabei wird eine axiale Stirnfläche des Leitkranzes mittels auf eine schiefe Ebene wirkenden Stellschrauben gegen eine umlaufende axiale Anschlagfläche am Gehäuse gepresst.DE 21 65 529 describes a device for centering and fixing a guide ring in the housing of a turbomachine. In this case, an axial end face of the guide ring is pressed by acting on an inclined plane screws against a circumferential axial stop surface on the housing.

Der Erfindung liegt die Aufgabe zugrunde, eine Statorschaufelsegmentbefestigung für eine Gasturbine zu schaffen, welche bei einfachem Aufbau und kostengünstiger Herstellbarkeit die Nachteile des Standes der Technik vermeidet und eine betriebssichere Befestigung der Statorschaufelsegmente ermöglicht.
Erfindungsgemäß wird die Aufgabe durch die Merkmalskombination des Hauptanspruchs gelöst, die Unteransprüche zeigen weitere vorteilhafte Ausgestaltungen der Erfindung.The invention has for its object to provide a Statorschaufelsegmentbefestigung for a gas turbine, which avoids the disadvantages of the prior art with a simple structure and cost manufacturability and enables a reliable attachment of the stator blade segments.
According to the invention the object is achieved by the feature combination of the main claim, the subclaims show further advantageous embodiments of the invention.

Erfindungsgemäß sind somit Mittel zum Verspannen des Statorschaufelsegments gegen das Gehäuse der Gasturbine bzw. des Kompressors (Verdichters) vorgesehen.According to the invention thus means for clamping the stator blade against the housing of the gas turbine or the compressor (compressor) are provided.

Die erfindungsgemäße Statorschaufelsegmentbefestigung zeichnet sich durch eine Reihe erheblicher Vorteile aus.The Statorschaufelsegmentbefestigung invention is characterized by a number of significant advantages.

Das der Erfindung zugrunde liegende Prinzip besteht darin, die Statorschaufelsegmente gegen das Gehäuse zu verspannen. Diese werden hierdurch geringfügig verformt. In gleicher Weise kann auch das Gehäuse einer entsprechenden Verformung unterzogen werden. Durch diese bewusst hervorgerufene elastische Verformung werden Toleranzen oder Spiel der Befestigungsmittel beseitigt. Unerwünschte Vibrationen oder Ähnliches werden somit gänzlich verhindert oder zumindest stark unterdrückt. Weiterhin kann durch die erfindungsgemäße Ausgestaltung erreicht werden, dass die jeweiligen freien Enden der Statorschaufelsegmente fest gegen das Gehäuse anliegen und sich somit nicht von dem Gehäuse lösen.The principle underlying the invention is to clamp the Statorschaufelsegmente against the housing. These are thereby slightly deformed. In the same way, the housing can be subjected to a corresponding deformation. This deliberately induced elastic deformation eliminates tolerances or play of the fasteners. Unwanted vibrations or the like are thus completely prevented or at least greatly suppressed. Furthermore, it can be achieved by the embodiment according to the invention that the respective free ends of the stator blade segments firmly against the housing and thus do not come loose from the housing.

In einer besonders günstigen Weiterbildung der Erfindung ist vorgesehen, dass die Mittel zur Verspannung der Statorschaufelsegmente im mittleren Umfangsbereich derselben angeordnet sind. Hierdurch ergeben sich symmetrische Belastungsverhältnisse.In a particularly favorable development of the invention, it is provided that the means for tensioning the stator blade segments are arranged in the middle circumferential region thereof. This results in symmetrical loading conditions.

Die Mittel zum Verspannen des Statorschaufelsegments umfassen bevorzugterweise ein Stellelement, welches in günstiger Ausgestaltung der Erfindung in Form einer Schraube ausgebildet sein kann. Diese Schraube kann beispielsweise in einer Gewindeausnehmung des Gehäuses geführt werden. Sie ist dann beispielsweise als Zugschraube ausgestaltet. Alternativ hierzu ist es auch möglich, Druckschrauben zu verwenden oder sonstige Vorspannmittel vorzusehen.The means for clamping the stator blade segment preferably comprise an actuating element, which may be formed in a favorable embodiment of the invention in the form of a screw. This screw can be performed for example in a threaded recess of the housing. It is then designed, for example, as a lag screw. Alternatively, it is also possible to use pressure screws or provide other biasing means.

Um den Vorspanneffekt zu erhöhen, kann es besonders vorteilhaft sein, wenn der Radius des Gehäuses im Bereich der Statorschaufelsegmente kleiner ist, als der Radius des jeweiligen Statorschaufelsegments. Hierdurch wird erreicht, dass die freien Endbereiche der Statorschaufelsegmente gegen das Gehäuse anliegen und entsprechend verspannt werden können.To increase the preload effect, it may be particularly advantageous if the radius of the housing in the region of the stator vane segments is smaller than the radius of the respective stator vane segment. This ensures that the free end portions of the Statorschaufelsegmente bear against the housing and can be clamped accordingly.

Im Folgenden wird die Erfindung anhand des Ausführungsbeispiels in Verbindung mit der Zeichnung beschrieben. Dabei zeigt:

Fig. 1
eine schematische Darstellung einer möglichen Ausgestaltungsform eines Statorschaufelsegments gemäß dem Stand der Technik,
Fig. 2
eine schematische Prinzipdarstellung der erfindungsgemäßen Wirkungsweise, und
Fig. 3
eine Teil-Seitenansicht eines Gehäusebereichs sowie eines Statorschaufelsegments mit erfindungsgemäßen Mitteln zur Verspannung des Statorschaufelsegments.
In the following the invention will be described with reference to the embodiment in conjunction with the drawing. Showing:
Fig. 1
a schematic representation of a possible embodiment of a stator blade according to the prior art,
Fig. 2
a schematic diagram of the operation of the invention, and
Fig. 3
a partial side view of a housing portion and a stator blade with inventive means for clamping the stator blade.

Die Fig. 1 zeigt in perspektivischer Darstellung ein Statorschaufelsegment, so wie dies per se aus dem Stand der Technik vorbekannt ist. Dieses umfasst mehrere Statorschaufeln, die an einem kreissegmentförmigen äußeren Träger 6 und optional an einem kreissegmentförmigen inneren Träger 7 befestigt sind. Der äußere Träger 6 und der innere Träger 7 können mit seitlichen Füßen oder Ansätzen oder mit entsprechenden Nuten versehen sein, um die Befestigung in einem Gehäuse 1 (siehe Fig. 3) oder an einem Innendeckband zu ermöglichen. Diese Ausgestaltungen sind aus dem Stand der Technik bekannt, so dass auf diesen verwiesen werden kann. Eine Drehung der Statorschaufelsegmente 2 in dem Gehäuse kann durch sogenannte Vane Stops verhindert werden. Hierzu weist das in Fig. 1 gezeigte Statorschaufelsegment beispielsweise eine Nut 8 auf.Fig. 1 shows a perspective view of a stator blade segment, as is known per se from the prior art. This comprises a plurality of stator blades, which are fastened to a circular segment-shaped outer support 6 and optionally to a circular segment-shaped inner support 7. The outer support 6 and the inner support 7 may be provided with side feet or lugs or corresponding grooves to allow attachment in a housing 1 (see Fig. 3) or on an inner cover tape. These embodiments are known from the prior art, so that it can be referenced. Rotation of the stator blade segments 2 in the housing can be prevented by so-called vane stops. For this purpose, the stator blade segment shown in FIG. 1 has, for example, a groove 8.

Die Fig. 2 zeigt in der Seitenansicht die schematische Wirkungsweise der Erfindung vor dem Verspannen. Mit dem äußeren Kreisbogen ist ein Gehäuse 1 wiedergegeben, während der innere Kreisbogen ein Statorschaufelsegment 2 wiedergibt. Das Bezugszeichen 3 bezieht sich auf Vorspannmittel. Wie aus Fig. 2 ersichtlich ist, führt eine Verspannung des Statorschaufelsegments 2 zur Bildung eines Zwischenraums in dessen mittlerem Bereich, so dass die freien Enden des Statorschaufelsegments gegen das Gehäuse 1 anliegen bzw. an dieses angedrückt werden.Fig. 2 shows a side view of the schematic operation of the invention prior to bracing. With the outer circular arc a housing 1 is reproduced, while the inner circular arc represents a stator blade segment 2. The reference numeral 3 refers to biasing means. As can be seen from FIG. 2, a tension of the stator blade segment 2 leads to the formation of a gap in its middle region, so that the free ends of the stator blade segment abut against the housing 1 or are pressed against this.

Beim Verspannen wird dieser Zwischenraum verkleinert und die Radien gleichen sich durch Verformung an.When clamping this gap is reduced and the radii are equalized by deformation.

Die Fig. 2 zeigt, dass der Radius des Statorschaufelsegments 2 im unverspannten Zustand größer ist, als der entsprechende Radius des Gehäuses 1.FIG. 2 shows that the radius of the stator blade segment 2 in the unstressed state is greater than the corresponding radius of the housing 1.

Die Fig. 3 zeigt eine vereinfachte Seitenansicht im unverspannten Zustand, bei welcher ersichtlich ist, dass die Vorspannmittel 3 in Form einer Schraube 4 ausgebildet sind, die in einer im Einzelnen nicht gezeigten Gewindeausnehmung des Gehäuses 1 geführt ist. Die Schraube ist beispielsweise als Zugschraube ausgebildet, um das Statorschaufelsegment 2 in der beschriebenen Weise zu deformieren.3 shows a simplified side view in the unstressed state, in which it can be seen that the biasing means 3 are formed in the form of a screw 4, which is guided in a threaded recess, not shown in detail, of the housing 1. The screw is designed, for example, as a tension screw in order to deform the stator blade segment 2 in the manner described.

Die Erfindung ist nicht auf das gezeigte Ausführungsbeispiel beschränkt, vielmehr ergeben sich im Rahmen der Ansprüche vielfältige Abwandlungs- und Modifikationsmöglichkeiten.The invention is not limited to the embodiment shown, but rather arise within the scope of the claims varied modification and modification options.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Gehäusecasing
22
StatorschaufelsegmentStatorschaufelsegment
33
Vorspannmittelbiasing means
44
Schraubescrew
55
Statorschaufelstator
66
äußerer Trägerouter carrier
77
innerer Trägerinner carrier
88th
Nutgroove

Claims (5)

  1. Stator vane span attachment for a gas turbine with several stator vane spans (2) located in a casing (1), characterized in that the stator vane spans (2) each are restraint fixed by means of a restraining means (3) by elastic deformation of the stator vane span (2) and/or the casing (1) under restraining at the casing (1), whereby in the undeformed status the radius of the casing (1) in the area of the stator vane span (2) is smaller than the radius of the respective stator vane span (2).
  2. Stator vane span attachment in accordance with Claim 1 characterized in that the restraining means (3) are arranged in the central circumferential area of the stator vane span (2).
  3. Stator vane span attachment in accordance with claims 1 or 2, characterized in that the restraining means (3) for producing the restraining of the stator vane span (2) comprise a setting element.
  4. Stator vane span attachment in accordance with claim 3, characterized in that the setting element is a bolt (4).
  5. Stator vane span attachment in accordance with claim 4, characterized in that the bolt (4) is located in a threaded hole of the casing (1) and is designed as a tension bolt.
EP03003358A 2002-04-02 2003-02-14 Fastening of nozzle segments in a gas turbine Expired - Fee Related EP1350924B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10214569 2002-04-02
DE10214569A DE10214569A1 (en) 2002-04-02 2002-04-02 Stator blade segment attachment for a gas turbine

Publications (3)

Publication Number Publication Date
EP1350924A2 EP1350924A2 (en) 2003-10-08
EP1350924A3 EP1350924A3 (en) 2005-02-02
EP1350924B1 true EP1350924B1 (en) 2007-01-24

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP03003358A Expired - Fee Related EP1350924B1 (en) 2002-04-02 2003-02-14 Fastening of nozzle segments in a gas turbine

Country Status (3)

Country Link
US (1) US6863497B2 (en)
EP (1) EP1350924B1 (en)
DE (2) DE10214569A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7421354B2 (en) * 2006-10-13 2008-09-02 General Electric Company Systems and methods for reducing an effect of a disturbance
US20080221710A1 (en) * 2006-10-13 2008-09-11 General Electric Company System and methods for reducing an effect of a disturbance
EP2573328A1 (en) * 2011-09-20 2013-03-27 Siemens Aktiengesellschaft Stator ring for a turbomachine and a method for operation of the stator ring
US10428832B2 (en) 2012-08-06 2019-10-01 United Technologies Corporation Stator anti-rotation lug
US20160017731A1 (en) * 2014-07-17 2016-01-21 Rolls-Royce Corporation Vane assembly
EP2977548B1 (en) * 2014-07-22 2021-03-10 Safran Aero Boosters SA Blade and corresponding turbomachine
US11125092B2 (en) 2018-08-14 2021-09-21 Raytheon Technologies Corporation Gas turbine engine having cantilevered stators

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE826673C (en) * 1945-04-04 1952-01-03 Maschf Augsburg Nuernberg Ag Diffuser with ceramic guide vanes
US2857093A (en) * 1954-12-02 1958-10-21 Cincinnati Testing & Res Lab Stator casing and blade assembly
GB856599A (en) * 1958-06-16 1960-12-21 Gen Motors Corp Improvements relating to axial-flow compressors
DE2152365C3 (en) * 1971-02-03 1973-12-06 Carrier Corp., Syracuse, N.Y. (V.St.A.) Device for supporting the inner ends of rotatably mounted guide vanes of an axial flow machine
DE2165529A1 (en) * 1971-12-30 1973-07-05 Kloeckner Humboldt Deutz Ag DEVICE FOR CENTERING AND FIXING A BODY
DE2643285C3 (en) * 1976-09-25 1979-03-08 Motoren- Und Turbinen-Union Muenchen Gmbh, 8000 Muenchen Support device for a component that absorbs a torque acting in the circumferential direction in a stack of components of a gas turbine engine, in particular a guide vane ring, in the housing
US5846050A (en) * 1997-07-14 1998-12-08 General Electric Company Vane sector spring
US6296443B1 (en) * 1999-12-03 2001-10-02 General Electric Company Vane sector seating spring and method of retaining same

Also Published As

Publication number Publication date
US20030185683A1 (en) 2003-10-02
EP1350924A2 (en) 2003-10-08
EP1350924A3 (en) 2005-02-02
DE50306344D1 (en) 2007-03-15
DE10214569A1 (en) 2003-10-16
US6863497B2 (en) 2005-03-08

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