EP2719867B1 - Housing structure with improved sealing and cooling - Google Patents
Housing structure with improved sealing and cooling Download PDFInfo
- Publication number
- EP2719867B1 EP2719867B1 EP12188313.6A EP12188313A EP2719867B1 EP 2719867 B1 EP2719867 B1 EP 2719867B1 EP 12188313 A EP12188313 A EP 12188313A EP 2719867 B1 EP2719867 B1 EP 2719867B1
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- EP
- European Patent Office
- Prior art keywords
- housing structure
- housing wall
- web
- structure according
- holder
- Prior art date
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- Not-in-force
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Classifications
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- 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
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- 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
- F01D9/023—Transition ducts between combustor cans and first stage of the turbine in gas-turbine engines; their cooling or sealings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
- F01D11/005—Sealing means between non relatively rotating elements
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- 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
- F01D25/243—Flange connections; Bolting arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2240/00—Components
- F05D2240/10—Stators
- F05D2240/15—Heat shield
Definitions
- the present invention relates to a housing structure for a turbomachine, in particular for a gas turbine or an aircraft engine, according to the preamble of claim 1, as in the document US 2002/0122 716 A1 is disclosed.
- turbomachines such as gas turbines or aircraft engines
- air is drawn along a flow channel, compressed, and combusted in a combustion chamber along with fuel, and then the combustion gases are discharged through the flow channel, thereby driving in a turbine rotors.
- the flow channel is circumferentially surrounded by a housing structure, wherein in the region of the combustion chamber and the following turbine, by the combustion gases very high temperatures prevail in the flow channel, so that surrounding the flow channel housing structure must be efficiently cooled in order to achieve that the lowest possible operating temperatures are present in order to use materials with lower requirements for high-temperature properties.
- cooling air is passed into the area of the outer housing structure in order to bring about heat dissipation.
- insulation and heat shields are used in such housing structures, which should protect the outer components from excessive temperatures, as from the document EP 1 384 858 A2 is known.
- the invention is based on the recognition that the existing in the prior art recesses in the field of heat shields or generally the presence of openings in the region of bushings in the radial direction causes inadmissible amount of hot gas can flow into the outer region of the housing structure.
- the invention therefore provides for placing a seal in the region in which the heat shield is interrupted, so that hot gas is prevented from flowing in the direction of the outer housing structure.
- it is proposed to project on webs or brackets, which are arranged on an inner housing wall and project at least partially outwardly in the radial direction, such to guide vane webs or Leitschaufelhalterept to provide broadening and form at these widening sealing surfaces against which heat shields sealingly so as to achieve a seal.
- Broadening is here understood to mean an enlargement of the cross section of a web or a holder in at least one direction, which extends in particular in a direction transverse to the radial direction, whereby a new cross-sectional reduction is preferably provided in addition to the cross-sectional widening, so that the widening only in a certain Section of the web or the bracket is present.
- At least one widening is provided on one or more circumferential walls around the flow channel, or on a corresponding support of the inner housing wall on opposite sides facing away from each other, on each of which a heat shield bears sealingly, so that both in the axial direction, and in Circumferential direction is a closed as possible barrier wall of heat shields for the separation of an outer part of the housing structure with outer cavities of an inner part of the housing structure is formed with internal cavities.
- the broadening on a web or a holder of the inner housing wall may in particular be made in one piece, so that additional mounting components and additional assembly costs can be saved.
- the broadening can be cast on a corresponding web or a holder.
- the inner and outer cavities may have corresponding cooling air inlet openings to allow for inflow of cooling air.
- the attached figure shows in a purely schematic way a partial sectional view of a housing structure according to the invention.
- the attached figure shows a section of a housing structure according to the invention with an outer housing wall 1, which can be designed segmented both in the axial direction and circulate around the limited of its flow channel.
- a guide blade 3 is arranged, which forms a part of the inner housing wall 2 in the form of a shroud.
- a guide blade web 4 is arranged projecting obliquely outwards, which can serve for example for fixing the guide vane 3 to the outer housing wall 1.
- heat shields are provided 6.7, which are also at least partially formed circumferentially around the flow channel and to shield the outer housing wall 1 from the temperatures in the flow channel.
- the heat shields 6 and 7 limit in the embodiment shown both inner cavities 9, as well as outer cavities 10th
- the outer cavities 10 are limited not only by the heat shields 6,7, but also by the outer housing wall 1 and the Leitschaufelsteg 4.
- cooling air openings 11 are partially provided, which allow to direct air from the environment into the outer cavities 10 in order to provide a cooling effect for the housing with respect to the high temperatures in the flow channel.
- the heat shields 6.7 continue to limit internal cavities 9, which are largely separated from the outer cavities 10 and sealed.
- a sealing surface 8 is provided, which is in contact with the heat shield 7 and 6, respectively, to seal the inner cavities 8 and outer cavities 10.
- the inner cavities 9 are spaced from the outer housing wall 1 and the outer cavities 10 are spaced from the inner housing wall 2, so that the inner cavities 9 serve as a temperature buffer, while the outer cavities 10 can be used to guide cooling air.
- the outer housing wall 1 and the components in the region of the outer housing wall 1 can be effectively cooled and the temperature load can be lowered, so that materials can be used with lower requirements for temperature resistance.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Description
Die vorliegende Erfindung betrifft eine Gehäusestruktur für eine Strömungsmaschine, insbesondere für eine Gasturbine oder ein Flugtriebwerk, nach dem Oberbegriff des Anspruchs 1, wie in der Druckschrift
Bei Strömungsmaschinen, wie Gasturbinen oder Flugtriebwerken, wird Luft entlang eines Strömungskanals angesaugt, verdichtet, und in einer Brennkammer zusammen mit Brennstoff verbrannt, wobei anschließend die Verbrennungsgase über den Strömungskanal ausgegeben werden, um dabei in einer Turbine Rotoren anzutreiben.In turbomachines, such as gas turbines or aircraft engines, air is drawn along a flow channel, compressed, and combusted in a combustion chamber along with fuel, and then the combustion gases are discharged through the flow channel, thereby driving in a turbine rotors.
Der Strömungskanal wird umlaufend von einer Gehäusestruktur umgeben, wobei insbesondere im Bereich der Brennkammer und der nachfolgenden Turbine, durch die Verbrennungsgase sehr hohe Temperaturen herrschen im Strömungskanal, sodass die den Strömungskanal umgebende Gehäusestruktur effizient gekühlt werden müssen, um zu erreichen, dass möglichst niedrige Betriebstemperaturen vorliegen, um so Werkstoffe mit geringeren Anforderungen an die Hochtemperatureigenschaften einsetzen zu können.The flow channel is circumferentially surrounded by a housing structure, wherein in the region of the combustion chamber and the following turbine, by the combustion gases very high temperatures prevail in the flow channel, so that surrounding the flow channel housing structure must be efficiently cooled in order to achieve that the lowest possible operating temperatures are present in order to use materials with lower requirements for high-temperature properties.
Hierzu wird Kühlluft in den Bereich der äußeren Gehäusestruktur geleitet, um eine Wärmeableitung zu bewirken. Zudem werden in derartigen Gehäusestrukturen Isolierungen und Hitzeschilde eingesetzt, die die äußeren Komponenten vor zu hohen Temperaturen schützen sollen, wie aus der Druckschrift
Allerdings gibt es bei bekannten Gehäusestrukturen oft die Notwendigkeit Aussparungen in den den Strömungskanal umgebenden Hitzeschilden vorzusehen, um beispielsweise Leitkranzstege bzw. Statoraufhängungen oder Umfangssicherungen in radialer Richtung durchzuführen. Durch die Aussparungen ist es jedoch möglich, dass Heißgas aus dem Strömungskanal nach außen gelangt, sodass die Temperaturbelastung der Komponenten in den äußeren Gehäusestrukturen ansteigt.However, in known housing structures there is often the need to provide recesses in the heat shields surrounding the flow channel in order, for example, to realize guide webs or stator suspensions or circumferential securing devices in the radial direction. However, the recesses may allow hot gas to flow out of the flow channel, increasing the temperature load on the components in the outer shell structures.
Es ist deshalb Aufgabe der vorliegenden Erfindung, eine Gehäusestruktur bereitzustellen, die eine verbesserte Kühlung der äußeren Gehäusekomponenten ermöglicht und somit deren Temperaturbelastung senkt.It is therefore an object of the present invention to provide a housing structure that allows for improved cooling of the outer housing components and thus reduces their temperature load.
Diese Aufgabe wird gelöst durch eine Gehäusestruktur mit den Merkmalen des Anspruchs 1 sowie einer Strömungsmaschine mit den Merkmalen des Anspruchs 10. Vorteilhafte Ausgestaltungen sind Gegenstand der abhängigen Ansprüche.This object is achieved by a housing structure with the features of
Die Erfindung geht aus von der Erkenntnis, dass die im Stand der Technik vorhandenen Aussparungen im Bereich der Hitzeschilde bzw. allgemein das Vorhandensein von Öffnungen im Bereich von Durchführungen in radialer Richtung dazu führt, dass unzulässig viel Heißgas in den äußeren Bereich der Gehäusestruktur strömen kann. Die Erfindung sieht deshalb vor, in dem Bereich, in dem das Hitzeschild unterbrochen ist, eine Abdichtung anzuordnen, sodass Heißgas am Strömen in Richtung der äußeren Gehäusestruktur gehindert wird. Hierzu wird vorgeschlagen, an Stegen oder Halterungen, die an einer inneren Gehäusewand angeordnet sind und zumindest teilweise in radialer Richtung nach außen vorstehen, wie z.B. an Leitschaufelstegen oder Leitschaufelhalterungen, Verbreiterungen vorzusehen und an diesen Verbreiterungen Dichtflächen auszubilden, an denen Hitzeschilde dichtend anliegen, um so eine Abdichtung zu erzielen.The invention is based on the recognition that the existing in the prior art recesses in the field of heat shields or generally the presence of openings in the region of bushings in the radial direction causes inadmissible amount of hot gas can flow into the outer region of the housing structure. The invention therefore provides for placing a seal in the region in which the heat shield is interrupted, so that hot gas is prevented from flowing in the direction of the outer housing structure. For this purpose, it is proposed to project on webs or brackets, which are arranged on an inner housing wall and project at least partially outwardly in the radial direction, such to guide vane webs or Leitschaufelhalterungen to provide broadening and form at these widening sealing surfaces against which heat shields sealingly so as to achieve a seal.
Unter Verbreiterung wird hierbei ein Erweiterung des Querschnitts eines Stegs oder einer Halterung in zumindest einer Richtung verstanden, die insbesondere in einer Richtung quer zu radialen Richtung verläuft, wobei vorzugsweise neben der Querschnittserweiterung auch eine erneute Querschnittsreduzierung vorgesehen ist, so dass die Verbreiterung nur in einem bestimmten Abschnitt des Stegs oder der Halterung vorliegt.Broadening is here understood to mean an enlargement of the cross section of a web or a holder in at least one direction, which extends in particular in a direction transverse to the radial direction, whereby a new cross-sectional reduction is preferably provided in addition to the cross-sectional widening, so that the widening only in a certain Section of the web or the bracket is present.
Durch das Vorsehen von Verbreiterungen an notwendigerweise vorhandenen Leitschaufelstegen bzw. Leitschaufelaufhängungen oder -halterungen kann in einfacher Weise eine Verbesserung der Abdichtung erzielt werden, da keine zusätzlich zu montierenden Bauteile vorgesehen werden müssen und auch die notwendigen Abänderungen der übrigen Konstruktion begrenzt bleiben.By providing widenings on necessarily existing guide vane webs or guide vanes or mounts, an improvement can be made in a simple way the seal can be achieved because no additional components to be mounted must be provided and the necessary modifications to the rest of the construction remain limited.
Erfindungsgemäß ist an einem, insbesondere in Umfangsrichtung um den Strömungskanal umlaufenden, Steg oder einer entsprechenden Halterung der inneren Gehäusewand an gegenüberliegenden und voneinander wegweisenden Seiten jeweils mindestens eine Verbreiterung vorgesehen, an der jeweils ein Hitzeschild dichtend anliegt, sodass sowohl in axialer Richtung, als auch in Umfangsrichtung eine möglichst geschlossene Sperrwand aus Hitzeschilden zur Abtrennung eines äußeren Teil der Gehäusestruktur mit äußeren Hohlräumen von einem inneren Teil der Gehäusestruktur mit inneren Hohlräumen ausgebildet wird.According to the invention, at least one widening is provided on one or more circumferential walls around the flow channel, or on a corresponding support of the inner housing wall on opposite sides facing away from each other, on each of which a heat shield bears sealingly, so that both in the axial direction, and in Circumferential direction is a closed as possible barrier wall of heat shields for the separation of an outer part of the housing structure with outer cavities of an inner part of the housing structure is formed with internal cavities.
Durch die Abdichtung mit mindestens einem, vorzugsweise mehreren Hitzeschilden gegenüber Leitschaufel - oder Leitkranzstegen bzw. Leitschaufel - oder Leitkranzaufhängungen kann ferner bewirkt werden, dass gut voneinander abgetrennte innere und äußere Hohlräume geschaffen werden, wobei die inneren Hohlräume im Bereich der inneren Gehäusewand und vorzugsweise beabstandet zur äußeren Gehäusewand vorliegen, während die äußeren Hohlräume im Bereich der äußeren Gehäusewand und vorzugsweise beabstandet von der inneren Gehäusewand vorliegen. Durch die Trennung von inneren und äußeren Hohlräumen kann eine effizientere Kühlwirkung erzielt werden, da die inneren Hohlräume als Puffer dienen, während in den äußeren Hohlräumen die Kühlluftführung vorgesehen werden kann. Durch den Puffer kann ein direkter Wärmeübergang vom Strömungskanal zur äußeren Gehäusestruktur vermieden oder zumindest eingeschränkt werden.By sealing with at least one, preferably more heat shields relative to guide vane or guide vane or guide vane or Leitkranzaufhängungen can also be effected that well separated inner and outer cavities are created, the inner cavities in the region of the inner housing wall and preferably spaced from outer housing wall, while the outer cavities in the region of the outer housing wall and preferably spaced from the inner housing wall. By separating the inner and outer cavities, a more efficient cooling effect can be achieved because the inner cavities serve as buffers, while in the outer cavities, the cooling air flow can be provided. Through the buffer, a direct heat transfer from the flow channel to the outer housing structure can be avoided or at least limited.
Die Verbreiterung an einem Steg oder einer Halterung der inneren Gehäusewand kann insbesondere einstückig ausgeführt sein, sodass zusätzliche Montagebauteile und zusätzliche Montageaufwand eingespart werden kann. Insbesondere kann die Verbreiterung an einem entsprechenden Steg oder einer Halterung angegossen sein.The broadening on a web or a holder of the inner housing wall may in particular be made in one piece, so that additional mounting components and additional assembly costs can be saved. In particular, the broadening can be cast on a corresponding web or a holder.
Damit lässt sich eine weitgehende Abtrennung der inneren und äußeren Hohlräume voneinander verwirklichen, sodass keine oder zumindest nur geringfügig Heißgase aus dem Strömungskanal oder den inneren Hohlräumen in den Bereich der äußeren Hohlräume gelangen können. Während die inneren Hohlräume weitgehend abgedichtet sind, um als Puffer zu wirken, können die äußeren Hohlräume entsprechende Kühlluftzutritts -öffnungen aufweisen, um einen Zufluss von Kühlluft zu ermöglichen.This allows a substantial separation of the inner and outer cavities realize each other, so that no or at least only slightly hot gases from the flow channel or the inner cavities can get into the region of the outer cavities. While the inner cavities are largely sealed to act as a buffer, the outer cavities may have corresponding cooling air inlet openings to allow for inflow of cooling air.
Die beigefügte Figur zeigt in rein schematischer Weise eine teilweise Schnittansicht einer erfindungsgemäßen Gehäusestruktur.The attached figure shows in a purely schematic way a partial sectional view of a housing structure according to the invention.
Weitere Vorteile, Kennzeichen und Merkmale der vorliegenden Erfindung werden bei der nachfolgenden detaillierten Beschreibung eines Ausführungsbeispiels deutlich. Allerdings ist die Erfindung nicht auf dieses Ausführungsbeispiel beschränkt.Further advantages, characteristics and features of the present invention will become apparent in the following detailed description of an embodiment. However, the invention is not limited to this embodiment.
Die beigefügte Figur zeigt einen Ausschnitt aus einer erfindungsgemäßen Gehäusestruktur mit einer äußeren Gehäusewand 1, die sowohl in axialer Richtung als auch umlaufen um den von ihr begrenzten Strömungskanal segmentiert ausgeführt sein kann. Im Bereich des Strömungskanals ist eine Leitschaufel 3 angeordnet, die in Form eines Deckbands einen Teil der inneren Gehäusewand 2 darstellt. Von der Leitschaufel 3 bzw. dem Deckband und somit der inneren Gehäusewand 2 ist ein Leitschaufelsteg 4 schräg nach außen vorstehend angeordnet, der beispielsweise zur Fixierung der Leitschaufel 3 an der äußeren Gehäusewand 1 dienen kann.The attached figure shows a section of a housing structure according to the invention with an
Zwischen der äußeren Gehäusewand 1 und der inneren Gehäusewand 2 sind Hitzeschilde 6,7 vorgesehen, die ebenfalls zumindest teilweise um den Strömungskanal umlaufend ausgebildet sind und die äußere Gehäusewand 1 vor den Temperaturen im Strömungskanal abschirmen sollen.Between the
Die Hitzeschilder 6 und 7 begrenzen bei dem gezeigten Ausführungsbeispiel sowohl innere Hohlräume 9, als auch äußere Hohlräume 10.The
Die äußeren Hohlräume 10 werden nicht nur von den Hitzeschilden 6,7 begrenzt, sondern auch von der äußeren Gehäusewand 1 bzw. dem Leitschaufelsteg 4. In der äußeren Gehäusewand 1 sind teilweise Kühlluftöffnungen 11 vorgesehen, die es ermöglichen, Luft aus der Umgebung in die äußeren Hohlräume 10 zu leiten, um eine Kühlwirkung für das Gehäuse bezüglich der hohen Temperaturen im Strömungskanal bereit zu stellen.The
Die Hitzeschilde 6,7 begrenzen weiterhin innere Hohlräume 9, die von den äußeren Hohlräumen 10 weitgehend abgetrennt und abgedichtet sind. Zu diesem Zweck weist der Leitschaufelsteg 4 beidseitig Verbreiterungen 5 auf, die einstückig an dem Leitschaufelsteg 4 angeordnet sind und beispielsweise unmittelbar beim Gießen der Leitschaufel 3 erzeugt werden können. An den Verbreiterungen 5 ist jeweils eine Dichtfläche 8 vorgesehen, die in Kontakt mit dem Hitzeschild 7 bzw. 6 ist, um die inneren Hohlräume 8 bzw. äußeren Hohlräume 10 abzudichten. Durch das Vorsehen von Verbreiterungen 5 an dem Leitschaufelsteg 4 ist es in einfacher Weise ohne großen konstruktiven Mehraufwand möglich, Dichtflächen für Hitzeschilde 6,7 bereit zu stellen, sodass gut voneinander getrennte innere Hohlräume 9 und äußere Hohlräume 10 gebildet werden.The heat shields 6.7 continue to limit
Die inneren Hohlräume 9 sind beabstandet von der äußeren Gehäusewand 1 und die äußeren Hohlräume 10 sind beabstandet von der inneren Gehäusewand 2, sodass die inneren Hohlräume 9 als Temperaturpuffer dienen, während die äußeren Hohlräume 10 zur Führung von Kühlluft Verwendung finden können.The
Damit können die äußere Gehäusewand 1 und die Komponenten im Bereich der äußeren Gehäusewand 1 effektiv gekühlt werden und die Temperaturbelastung kann abgesenkt werden, sodass Werkstoffe mit geringeren Anforderungen an die Temperaturbeständigkeit eingesetzt werden können.Thus, the
Obwohl die vorliegende Erfindung anhand des Ausführungsbeispiels detailliert beschrieben worden ist, ist für den Fachmann selbstverständlich, dass die Erfindung nicht auf diese Ausführungsform beschränkt ist, sondern dass vielmehr Abwandlungen in der Weise möglich sind, dass einzelne Merkmale weggelassen oder andersartige Kombinationen verwirklicht werden können, solange der Schutzbereich der beigefügten Ansprüche nicht verlassen wird. Die vorliegende Offenbarung umfasst sämtliche Kombinationen der vorgestellten Einzelmerkmale.Although the present invention has been described in detail with reference to the embodiment, it will be understood by those skilled in the art that the invention is not limited to this embodiment, but rather modifications are possible in the manner that individual features omitted or other combinations can be realized, as long as the scope of the appended claims is not abandoned. The present disclosure includes all combinations of the featured individual features.
Claims (9)
- A housing structure for a turbo-engine, in particular for a gas turbine or an aircraft engine, having an outer housing wall (1) and an inner housing wall (2), wherein the inner and outer housing wall annularly enclose a flow channel of the turbo-engine and are spaced apart in a radial direction in relation to the flow channel, wherein arranged between the inner and outer housing wall there is at least one heat shield (6, 7), and wherein arranged on the inner housing wall there is a web (4) that protrudes at least partially in a radial direction or a holder that protrudes at least partially in a radial direction, wherein the web or the holder has at least on one side a broadened portion (5) that comprises a sealing face (8) against which the heat shield rests in a sealing manner,
characterised in that
the web or the holder has on sides lying opposite each other and pointing away from each other at least one respective broadened portion (5), each of which comprises at least one sealing face against which a respective heat shield rests in a sealing manner. - A housing structure according to claim 1,
characterised in that
the broadened portion (5) is arranged on the web or the holder in one piece therewith, in particular is cast thereon. - A housing structure according to one of the preceding claims,
characterised in that
the heat shield (6, 7) with its radially outer side delimits at least one outer hollow space (10) that is spaced apart from the inner housing wall. - A housing structure according to one of the preceding claims,
characterised in that
the heat shield (6, 7) with its radially inner side delimits at least one inner hollow space (9) that is spaced apart from the outer housing wall. - A housing structure according to one of claims 3 or 4,
characterised in that
the delimitation of the inner and/or outer hollow space includes the sealing face. - A housing structure according to one of claims 3 to 5,
characterised in that
the inner and outer hollow space (9, 10) are separated from each other. - A housing structure according to one of claims 3 to 6,
characterised in that
the outer hollow space has at least one cooling-air access opening (11). - A housing structure according to one of the preceding claims,
characterised in that
the inner housing wall is formed by means of at least one portion of a guide vane (3), and the web is a guide-vane web or guide-ring web, or the holder is a stator suspension. - A turbo-engine having a housing structure according to one of the preceding claims.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES12188313.6T ES2531468T3 (en) | 2012-10-12 | 2012-10-12 | Box structure with improved sealing and cooling |
| EP12188313.6A EP2719867B1 (en) | 2012-10-12 | 2012-10-12 | Housing structure with improved sealing and cooling |
| US14/052,338 US9416672B2 (en) | 2012-10-12 | 2013-10-11 | Housing structure with improved seal and cooling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP12188313.6A EP2719867B1 (en) | 2012-10-12 | 2012-10-12 | Housing structure with improved sealing and cooling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2719867A1 EP2719867A1 (en) | 2014-04-16 |
| EP2719867B1 true EP2719867B1 (en) | 2015-01-21 |
Family
ID=47115341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP12188313.6A Not-in-force EP2719867B1 (en) | 2012-10-12 | 2012-10-12 | Housing structure with improved sealing and cooling |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US9416672B2 (en) |
| EP (1) | EP2719867B1 (en) |
| ES (1) | ES2531468T3 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10557364B2 (en) * | 2016-11-22 | 2020-02-11 | United Technologies Corporation | Two pieces stator inner shroud |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2800797B1 (en) | 1999-11-10 | 2001-12-07 | Snecma | ASSEMBLY OF A RING BORDING A TURBINE TO THE TURBINE STRUCTURE |
| FR2803871B1 (en) * | 2000-01-13 | 2002-06-07 | Snecma Moteurs | DIAMETER ADJUSTMENT ARRANGEMENT OF A GAS TURBINE STATOR |
| US6431820B1 (en) * | 2001-02-28 | 2002-08-13 | General Electric Company | Methods and apparatus for cooling gas turbine engine blade tips |
| US6902371B2 (en) * | 2002-07-26 | 2005-06-07 | General Electric Company | Internal low pressure turbine case cooling |
| FR2899281B1 (en) * | 2006-03-30 | 2012-08-10 | Snecma | DEVICE FOR COOLING A TURBINE HOUSING OF A TURBOMACHINE |
| GB0619426D0 (en) * | 2006-10-03 | 2006-11-08 | Rolls Royce Plc | A vane arrangement |
| FR2968030B1 (en) * | 2010-11-30 | 2013-01-11 | Snecma | LOW-AIR TURBINE ENGINE PRESSURE TURBINE, COMPRISING A SECTORIZED DISTRIBUTOR |
| US8876458B2 (en) * | 2011-01-25 | 2014-11-04 | United Technologies Corporation | Blade outer air seal assembly and support |
| US8985944B2 (en) * | 2011-03-30 | 2015-03-24 | General Electric Company | Continuous ring composite turbine shroud |
-
2012
- 2012-10-12 EP EP12188313.6A patent/EP2719867B1/en not_active Not-in-force
- 2012-10-12 ES ES12188313.6T patent/ES2531468T3/en active Active
-
2013
- 2013-10-11 US US14/052,338 patent/US9416672B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| US20140102107A1 (en) | 2014-04-17 |
| US9416672B2 (en) | 2016-08-16 |
| EP2719867A1 (en) | 2014-04-16 |
| ES2531468T3 (en) | 2015-03-16 |
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