EP0937864B1 - Leitschaufelanordnung für eine axiale Strömungsmaschine - Google Patents
Leitschaufelanordnung für eine axiale Strömungsmaschine Download PDFInfo
- Publication number
- EP0937864B1 EP0937864B1 EP99103156A EP99103156A EP0937864B1 EP 0937864 B1 EP0937864 B1 EP 0937864B1 EP 99103156 A EP99103156 A EP 99103156A EP 99103156 A EP99103156 A EP 99103156A EP 0937864 B1 EP0937864 B1 EP 0937864B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing
- guide vane
- vane ring
- shroud
- guide
- 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 - Lifetime
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/12—Blades
- F01D5/22—Blade-to-blade connections, e.g. for damping vibrations
- F01D5/225—Blade-to-blade connections, e.g. for damping vibrations by shrouding
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
- F01D11/08—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator
-
- 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
- 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
- F01D9/042—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector fixing blades to stators
-
- 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
- F05B2230/00—Manufacture
- F05B2230/60—Assembly methods
- F05B2230/604—Assembly methods using positioning or alignment devices for aligning or centering, e.g. pins
- F05B2230/606—Assembly methods using positioning or alignment devices for aligning or centering, e.g. pins using maintaining alignment while permitting differential dilatation
-
- 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
- F05D2230/642—Assembly methods using positioning or alignment devices for aligning or centring, e.g. pins using maintaining alignment while permitting differential dilatation
Definitions
- the invention relates to a turbomachine with rotor and stator in fluidic one or more stages, according to the preamble of the patent award 1.
- Such a turbomachine is known, for example from DE-PS 27 45 130 b e-know this writing is specific to axial turbines with labyrinth seals refers.
- the flow channel of the working medium leads alternately by Leit- and Blade rims wherein the static components are radially from the outside, the rotating ones protrude radially from the inside into this.
- Figure 1 clearly shows this document gives there are both radially inwardly disposed seals between the rotor and the vane rings ("Inner Airseal") as well as radially outwardly disposed seals between the blades and the stator (“Outer Airseal").
- the sealing fins (Pos.8) of the "Inner Airseal” attached to the rotor (Pos.4) so that their dimensions or deviations from the Ve r-ratios depend on the rotor (temperature, speed).
- the associated seal s-lining (Pos.7) is in contrast to the inner shroud (Pos. 20) of the vane segments (Pos.1,5) attached.
- the vane segments are on the housing (pos. 13,14), so that the dimensions or deviations of the sealing coating Ultimately be determined by the conditions outside the housing significantly.
- each vane segment there is a longitudinally angled abutment with a radially outwardly facing abutment surface which, in operation, is forced against the corresponding hook-shaped housing member around the upstream "claw bearing" as a result of a flow-induced overturning moment (see Fig.1).
- DE-PS 35 40 943 describes such a gap control system especially for a Turbofan engine.
- the secondary air duct extends at least until to the end of the turbine area and has openings (Pos.11) in its inner wall on, by the secondary air from the outside targeted to areas of the turbine housing can be blown.
- This simplified ACC system may have the problem of that the low pressure of the secondary air flow is not sufficient to Locally confined housing zones by correspondingly small flow cross sections To generate cooling air flows with sufficient mass flow rate.
- Compressor air is discharged from the booster or low-pressure compressor branched off as a coolant, guided in separate channels and valves blown targeted.
- vane rings In smaller gas turbine engines, it is known to use vane rings as self-supporting, to perform integral components with closed shrouds and centered in the housing.From manufacturing and strength engineering Reasons (thermal stresses) is this "monolithic" solution on blade rings limited to relatively small dimensions.
- DE-OS 33 36 420 describes a mechanism for protection against over-rotation a gas turbine rotor at break.
- the mechanism works in the Way that the vane segments of at least one vane ring axially pivoted and brought into contact / engagement with adjacent blades become.
- the reciprocal mechanical vane friction and destruction brakes the rotor quickly and effectively.
- the vane segments associated with the mechanism each have a pivot bearing on the outer shroud segment and are on their inner circumference by means of a positive, annular reinforcing element connected so that the segments together a stiff, self-supporting Forming the vane ring.
- U.S. Patent 3,588,267 protects a plastic diaphragm vane construction, in which the blades are attached to a closed, inner torus are and form a self-supporting wreath with this.
- the outer blade tips are deckbandless and directly in recesses of a metallic Glued housing, the elasticity of the bond small relative displacements compensates / receives. It is obvious that this construction is for higher temperatures is completely unusable and at best in fan or Niederbuchverêtr Schl.
- a turbomachine with rotor and stator and with at least e-stens a, each having an outer and an inner shroud having vane ring which, in all operating states, can be achieved by an optimum gap attitude, i.e. by particularly low, little varying and mathematically well detectable Leakage losses, thus a high efficiency, as well as by a relative simple, cost-effective and low-weight, durable and easy to maintain design without the requirement of an active gap control system (ACC's) and also with great performances and dimensions executable and functional is.
- ACC's active gap control system
- the invention is thus in the thermal decoupling of housing and vanes by means of a special design and storage / centering at least a Leitschaufelkranzes and by air cooling of the housing.
- the - at least e-stens one - vane ring is a self-supporting component with a reinforcement executed on the inner shroud, which stiffens him against everting axial deformation. Starting from an approximately flat, radial alignment of the blade axes in the unloaded state these are due to the static pressure difference before / behind the guide vane ring at deflection "zero" on the housing towards the Kranzmitte z u-taking axially deflected and u.U. also curved.
- the vane ring mechanically comparable to a disc spring, its inner edge (Hole edge) the inner shroud, and the outer edge of the outer shroud forms.
- the inner shroud is displaced both axially and through the Shovel-induced moments twisted / staggered. That is, in radial-axial sections visible material cross-sections of the shroud are gedac h-te, perpendicular to the cutting surface, depending on the stiffness / reinforcement more or less twisted.
- the inventive reinforcement of the inner shroud against said buckling also reduces the axial deflection of the blade axes and thus the gesa m te Deformation of the vane ring under load. This improves the dimensional stability the static component of "Inner Airseal".
- This shows a partial longitudinal section through the low-pressure turbine of a turbojet engine.
- the present invention is generally applicable to turbomachinery with rotor and stator, i.e. for compressors and turbines, suitable, which at least partially in Axial design, i. with predominantly axial flow, are executed.
- thermodynamic and dimensionally likely low pressure turbines medium to large Gas turbine engines represent preferred use cases, which is why the figure Example from this area shows.
- the low-pressure turbine 1 From the low-pressure turbine 1 are the first two stages and this in turn The relevant elements of the upper half are shown, with the turbines / engine axis would be horizontally below the representation.
- the flow direction of the working gas runs from left to right, i. first through the vane ring 14, then through the area of the blades 3, anschli- Hd through the vane ring 15 and through the region of the rotor blades 4, where still further stages (guidance, running) can follow.
- the outer engine shell forms the housing 13 in which the vane rings 14,15 radially centered and are mounted axially fixed. Both the blades 3,4 and the vane rings 14,15 are executed with inner and outer shrouds 5 to 8 and 16 to 19, the inner and outer blade shrouds each between the blades have parting lines, u.a. damaged blades can be individually replaced are.
- the vane rings 14,15 are designed as self-supporting components, wherein their mechanical stability predominantly in the area of the inner shrouds 16,17 is achieved. There are circumferentially closed, i. "Encircling” Reinforcements 20,21 arranged, which also the thermal behavior (dimensional and Shape changes) of the Leitschaufelkränze 14,15 decisively influence.
- the Gas forces during operation cause u.a. an everting axial deformation of the vane rings, i.e. a from the outer to the inner shroud increasing axial deflection with a certain twist of the shrouds in itself.
- This "plate spring-like" deformation can be about the reinforcements on the inner Reduce shrouds considerably.
- reinforcements are the illustrated toroidal hollow body, axially spaced rings, combinations of Hollow and solid profiles, etc. suitable, whereby the space is a role play.
- the reinforcements should in any case - in axial / radial section - a possible large area moment of inertia about a radial axis, e.g. through the centroid have, what by sufficient, axially spaced surface portions is reachable.
- the surface portions of the shroud are to be considered here.
- a reinforcing material with a high modulus of elasticity is advantageous.
- Overall should be at As small as possible increase in mass an optimum increase in stiffness can be achieved. The determination of the stresses and deformations in the "everting" is more than appropriate Calculation method possible.
- the reinforcement 20 is positively connected to the shroud 16, wherein the Leitschaufelkranz 14 may consist of several segments, which on the Ve r-strengthening held together.
- the gain 21, however, is in the Dec k band 17 integrated, i. cohesively joined with this. Again, here you can Leitschaufelsegmente be the output parts, which by welding or Soldering in the area of the inner Deckba / the reinforcement are connected.
- outer shrouds 18,19 are still segmented in the installed state be, i. have several joints on the circumference to thermoelectric voltages too minimize.
- the "Inner Airseal” is here - at least predominantly - executed with brush seals, wherein in the region of the vane ring reinforcements fixed brushes 22,23 run against connected to the rotor 2 rings 11,12, which axial stops for form the blades 3,4.
- the "Outer Airseal" is realized here with labyrinth seals, ring-like Dense tips run 9,10 against honeycomb structures, which on honeycomb carrier 28,29 are applied.
- the honeycomb carriers 28,29 are in turn on the vane rings 14,15 stored and thereby aligned in the deformation behavior of these.
- the Leitschaufelkränze provided which constructively but not so much consuming, like an ACC system.
- the Leitschaufelkränze provided which constructively but not so much consuming, like an ACC system.
- the entrance The generally branched off from the compressor cooling air via bores 35 in a first chamber 33.
- Wall elements 36, 38 are arranged, which working gas secondary flows, i. -losses, to prevent these passages. For cooling reasons, these are also Wall elements 36,38 deliberately carried something gas permeable or fixed.
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
Claims (6)
- Strömungsmaschine mit Rotor und Stator in strömungstechnisch zumindest a b-schnittsweise axialer Bauart, deren Rotor Laufschaufeln, und deren Stator ein G e-häuse mit Leitschaufeln aufweist, wobei die Leitschaufeln als mindestens ein Leitschaufelkranz mit einem radial inneren und einem radial äußeren Deckband angeordnet, sind, insbesondere axiale Niederdruckturbine, gekennzeichnet durch die Kombination folgender Merkmale:(A) Mindestens ein Leitschaufelkranz (14,15) ist als selbsttragendes Bauteil mit einer in Umfangsrichtung geschlossenen, zumindest weitgehend rotationssymmetrischen, das Bauteil gegen stülpende Axialverformung versteifenden Verstärkung (20,21) am inneren Deckband (16,17) ausgeführt,(B) der mindestens eine Leitschaufelkranz (14,15) weist ein segmentiertes äußeres Deckband (18,19) mit mehreren über seinen Umfang verteilten Trennfugen auf und(C) er ist über mindestens drei Segmente des äußeren Deckbandes (18,19) mittels jeweils einer örtlich radiale Relativbewegungen zulassenden Lagereinheit (24,25,26,27), d.h. insgesamt über eine sog. Speichenzentrierung mit mindestens drei Speichen, im Gehäuse (13) positioniert, und(D) zwischen dem Gehäuse (13) und dem äußeren Deckband (18,19) des mindestens einen Leitschaufelkranzes (14,15) ist eine Luftleitschale (30) angeordnet, welche einen Kühlluftstrom längs der Gehäuseinnenseite führt und mit Öffnungen (31,32) für die gehäusefesten Lagerelemente (26,27) des mindestens eine Leitschaufe l-kranzes (14,15) versehen ist, wobei die Öffnungen (31,32) einen Teil des Kühlluftstromes zum Deckband (18,19) hin durchtreten lassen.
- Strömungsmaschine nach Anspruch 1, dadurch gekennzeichnet, daß die Verstä r-kung (20,21) des mindestens einen Leitschaufelkranzes (14,15) als torusförmiger Hohlkörper oder in Form mindestens zweier axial beabstandeter Ringe ausgeführt und stoffschlüssig in das innere Deckband (17) integriert oder formschlüssig mit diesem (16) verbunden ist.
- Strömungsmaschine nach Anspruch 2 mit formschlüssiger Verbindung zwischen der Verstärkung und dem inneren Deckband des mindestens einen Leitschaufe I-kranzes, dadurch gekennzeichnet, daß der mindestens eine Leitschaufelkranz (14) aus mehreren Leitschaufelsegmenten besteht, welche mittels der Verstä r-kung (20) zu einem selbsttragenden Bauteil zusammengefügt sind.
- Strömungsmaschine nach einem oder mehreren der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Verstärkung (20,21) des mindestens einen Leitschaufe l-kranzes (14,15) das statische Element einer Wellendichtung trägt, insbesondere die Bürste (22,23) einer Bürstendichtung oder den Einlaufbelag bzw. die Wabenstruktur einer Labyrinthdichtung.
- Strömungsmaschine nach einem oder mehreren der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß jede Lagereinheit des mindestens einen Leitschaufelkranzes (14,15) aus einem gehäusefesten Lagerzapfen (26,27) mit balliger Kontaktfläche und einer deckbandfesten Lagerbuchse (24,25) mit zylindrischer Kontaktfläche besteht.
- Strömungsmaschine nach einem oder mehreren der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß der Strömungskanal des Kühlluftstromes zwischen Gehäuse (13) und Luftleitschale (30) in mehrere, nacheinander durchströmte Kammern (33,34) mit von Kammer zu Kammer abnehmendem Innendruck aufgeteilt ist, w o-bei jede Kammer (33,34) für einen Betriebsdruck ausgelegt ist, welcher zumi n-dest geringfügig höher ist als der Druck im jeweils benachbarten Strömungskanalbereich des Arbeitsmediums.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19807247A DE19807247C2 (de) | 1998-02-20 | 1998-02-20 | Strömungsmaschine mit Rotor und Stator |
DE19807247 | 1998-02-20 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0937864A2 EP0937864A2 (de) | 1999-08-25 |
EP0937864A3 EP0937864A3 (de) | 2000-10-25 |
EP0937864B1 true EP0937864B1 (de) | 2003-08-13 |
Family
ID=7858458
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99103156A Expired - Lifetime EP0937864B1 (de) | 1998-02-20 | 1999-02-18 | Leitschaufelanordnung für eine axiale Strömungsmaschine |
Country Status (4)
Country | Link |
---|---|
US (1) | US6139263A (de) |
EP (1) | EP0937864B1 (de) |
JP (1) | JP4230040B2 (de) |
DE (2) | DE19807247C2 (de) |
Families Citing this family (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1318103B1 (it) * | 2000-07-03 | 2003-07-23 | Nuovo Pignone Spa | Sistema di connessione tra un ugello di bassa pressione ed untransition duct in una turbina a gas |
DE10037837C2 (de) | 2000-08-03 | 2002-08-01 | Mtu Aero Engines Gmbh | Aufhängung |
JP2002129901A (ja) * | 2000-10-30 | 2002-05-09 | Ishikawajima Harima Heavy Ind Co Ltd | チップシュラウド構造 |
DE10064272A1 (de) * | 2000-12-22 | 2002-07-04 | Alstom Switzerland Ltd | Turbinenschaufel für eine Gasturbine |
DE10122464C1 (de) * | 2001-05-09 | 2002-03-07 | Mtu Aero Engines Gmbh | Mantelring |
US7059821B2 (en) * | 2003-05-07 | 2006-06-13 | General Electric Company | Method and apparatus to facilitate sealing within turbines |
DE10359730A1 (de) | 2003-12-19 | 2005-07-14 | Mtu Aero Engines Gmbh | Turbomaschine, insbesondere Gasturbine |
DE102004016222A1 (de) * | 2004-03-26 | 2005-10-06 | Rolls-Royce Deutschland Ltd & Co Kg | Anordnung zur selbsttätigen Laufspalteinstellung bei einer zwei- oder mehrstufigen Turbine |
GB2448116B (en) * | 2007-04-05 | 2009-05-27 | Rolls Royce Plc | Means for cooling a bearing assembly |
US8090456B2 (en) * | 2008-11-03 | 2012-01-03 | United Technologies Corporation | System and method for design and control of engineering systems utilizing component-level dynamic mathematical model |
DE102009037620A1 (de) | 2009-08-14 | 2011-02-17 | Mtu Aero Engines Gmbh | Strömungsmaschine |
US8315741B2 (en) * | 2009-09-02 | 2012-11-20 | United Technologies Corporation | High fidelity integrated heat transfer and clearance in component-level dynamic turbine system control |
US8668434B2 (en) * | 2009-09-02 | 2014-03-11 | United Technologies Corporation | Robust flow parameter model for component-level dynamic turbine system control |
DE102009042029A1 (de) * | 2009-09-17 | 2011-03-24 | Mtu Aero Engines Gmbh | Schaufelkranz für eine Strömungsmaschine |
DE102009052314A1 (de) | 2009-11-07 | 2011-05-12 | Mtu Aero Engines Gmbh | Dichtanordnung für eine Gasturbine und eine derartige Gasturbine |
US20110255959A1 (en) * | 2010-04-15 | 2011-10-20 | General Electric Company | Turbine alignment control system and method |
WO2012065595A1 (de) | 2010-11-16 | 2012-05-24 | Mtu Aero Engines Gmbh | Laufschaufelanordnung für eine turbomaschine |
DE102011083814A1 (de) | 2011-09-30 | 2013-04-04 | Mtu Aero Engines Gmbh | Segmentiertes Bauteil |
EP2947275A1 (de) | 2012-04-04 | 2015-11-25 | MTU Aero Engines GmbH | Verfahren zur herstellung eines einlaufbelags |
EP2647795B1 (de) | 2012-04-04 | 2018-11-07 | MTU Aero Engines AG | Dichtungssystem für eine Strömungsmaschine |
EP2647796A1 (de) | 2012-04-04 | 2013-10-09 | MTU Aero Engines GmbH | Dichtungssystem für eine Strömungsmaschine |
KR101480089B1 (ko) | 2012-05-10 | 2015-01-08 | 이병화 | 목재용 앵커 볼트 |
EP2719869A1 (de) * | 2012-10-12 | 2014-04-16 | MTU Aero Engines GmbH | Axiale Abdichtung in einer Gehäusestruktur für eine Strömungsmaschine |
EP2796667B1 (de) * | 2013-04-24 | 2018-06-27 | MTU Aero Engines AG | Gleitringdichtung |
CN103482219B (zh) * | 2013-09-16 | 2016-06-01 | 沈阳黎明航空发动机(集团)有限责任公司 | 一种燃气轮机运输过程中对转子进行轴、径向定位方法 |
DE102014209057A1 (de) | 2014-05-14 | 2015-11-19 | MTU Aero Engines AG | Gasturbinengehäuseanordnung |
US10975721B2 (en) * | 2016-01-12 | 2021-04-13 | Pratt & Whitney Canada Corp. | Cooled containment case using internal plenum |
IT201900014736A1 (it) | 2019-08-13 | 2021-02-13 | Ge Avio Srl | Elementi di tenuta integrali per pale trattenute in un rotore a tamburo esterno anulare girevole in una turbomacchina. |
IT201900014724A1 (it) | 2019-08-13 | 2021-02-13 | Ge Avio Srl | Elementi di trattenimento delle pale per turbomacchine. |
IT201900014739A1 (it) | 2019-08-13 | 2021-02-13 | Ge Avio Srl | Elementi di trattenimento delle pale per turbomacchine. |
CN115387906B (zh) * | 2022-05-12 | 2024-04-16 | 中国航发四川燃气涡轮研究院 | 低进口轮毂比发动机的进气承力框架连接结构及装配方法 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2968467A (en) * | 1956-11-14 | 1961-01-17 | Orenda Engines Ltd | Connecting means, especially for securing annular stator elements between supports whose positions are fixed |
GB1158238A (en) * | 1968-06-27 | 1969-07-16 | Rolls Royce | Blade Assembly for a Fluid Flow Machine. |
US3542483A (en) * | 1968-07-17 | 1970-11-24 | Westinghouse Electric Corp | Turbine stator structure |
GB1387866A (en) * | 1972-06-21 | 1975-03-19 | Rolls Royce | Aerofoil members for gas turbine engines |
GB1605310A (en) * | 1975-05-30 | 1989-02-01 | Rolls Royce | Nozzle guide vane structure |
DE2745130C2 (de) | 1977-10-07 | 1980-01-03 | Mtu Motoren- Und Turbinen-Union Muenchen Gmbh, 8000 Muenchen | Dichtungseinrichtung für die freien Schaufelenden von Axialturbinen |
FR2534313B1 (fr) * | 1982-10-06 | 1986-09-19 | Rolls Royce | Moderateur de vitesse de turbine pour turbomachines |
US4679400A (en) * | 1983-12-15 | 1987-07-14 | General Electric Company | Variable turbine vane support |
DE3540943A1 (de) | 1985-11-19 | 1987-05-21 | Mtu Muenchen Gmbh | Gasturbinenstrahltriebwerk in mehr-wellen-zweistrom-bauweise |
-
1998
- 1998-02-20 DE DE19807247A patent/DE19807247C2/de not_active Expired - Fee Related
-
1999
- 1999-02-18 DE DE59906550T patent/DE59906550D1/de not_active Expired - Lifetime
- 1999-02-18 EP EP99103156A patent/EP0937864B1/de not_active Expired - Lifetime
- 1999-02-19 US US09/252,752 patent/US6139263A/en not_active Expired - Lifetime
- 1999-02-19 JP JP04200599A patent/JP4230040B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE19807247A1 (de) | 1999-09-09 |
EP0937864A2 (de) | 1999-08-25 |
DE19807247C2 (de) | 2000-04-20 |
US6139263A (en) | 2000-10-31 |
JP4230040B2 (ja) | 2009-02-25 |
JPH11294103A (ja) | 1999-10-26 |
DE59906550D1 (de) | 2003-09-18 |
EP0937864A3 (de) | 2000-10-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0937864B1 (de) | Leitschaufelanordnung für eine axiale Strömungsmaschine | |
DE3446389C2 (de) | Statoraufbau für eine Axial-Gasturbine | |
DE69321776T2 (de) | Gasturbine | |
DE602005004447T2 (de) | Manschettendichtung für Turbinenleitschaufeln | |
EP1736635B1 (de) | Luftführungssystem zwischen Verdichter und Turbine eines Gasturbinentriebwerks | |
DE3243422C2 (de) | Zweischaliges Gehäuse für Turbomaschinen | |
EP1389265B1 (de) | Gasturbine | |
EP1149985B1 (de) | Ringstruktur in Metallbauweise | |
EP2918913B1 (de) | Brennkammer einer Gasturbine mit äusserer und innerer Brennkammerwand | |
DE69502100T2 (de) | Ringförmiges lagergehäuse | |
EP3153667B1 (de) | Sicherungsvorrichtung zur axialen sicherung einer laufschaufel und rotorvorrichtung mit einer derartigen sicherungsvorrichtung | |
EP2728122B1 (de) | Dichtungsträgerfixierung für eine Strömungsmaschine | |
EP2853692B1 (de) | Dichtelement einer axialen Strömungsmaschine | |
EP1694943A2 (de) | Zentrierung der leitschaufelkränze in einer turbomaschine sowie montagevorrichtung | |
EP1653049B1 (de) | Leitschaufelring einer Strömungsmaschine und zugehöriges Modifikationsverfahren | |
DE69815886T2 (de) | Gasturbine mit einem thermischen ventil | |
DE69812165T2 (de) | Trägerelement für einen turbinenleitapparat | |
DE19617539A1 (de) | Rotor für eine thermische Turbomaschine | |
EP2955336B1 (de) | Zwischengehäuse für eine Gasturbine sowie Gasturbine mit einem solchen Zwischengehäuse | |
DE3031553A1 (de) | Gasturbinenlaufrad. | |
DE10122732C2 (de) | Anordnung für eine nicht-hermetisch abdichtende Dichtung | |
EP1206627A1 (de) | Turbine sowie verfahren zur abführung von leckfluid | |
EP1731715A1 (de) | Übergangsbereich zwischen einer Brennkammer und einer Turbineneinheit | |
EP2098688A1 (de) | Gasturbine | |
EP1783325B1 (de) | Befestigungsanordnung eines Rohres an einer Umfangsfläche |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): DE ES FR GB IT SE |
|
AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
17P | Request for examination filed |
Effective date: 20001212 |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: MTU AERO ENGINES GMBH |
|
AKX | Designation fees paid |
Free format text: DE ES FR GB IT SE |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Designated state(s): DE ES FR GB IT SE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED. Effective date: 20030813 |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REF | Corresponds to: |
Ref document number: 59906550 Country of ref document: DE Date of ref document: 20030918 Kind code of ref document: P |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20031113 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20031124 |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20031119 |
|
ET | Fr: translation filed | ||
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20040514 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20120227 Year of fee payment: 14 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20120221 Year of fee payment: 14 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20120221 Year of fee payment: 14 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20130218 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20131031 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 59906550 Country of ref document: DE Effective date: 20130903 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20130228 Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20130218 Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20130903 |