EP1531234A1 - Innendeckband für die Statorschaufeln des Verdichters einer Gasturbine - Google Patents
Innendeckband für die Statorschaufeln des Verdichters einer Gasturbine Download PDFInfo
- Publication number
- EP1531234A1 EP1531234A1 EP04090415A EP04090415A EP1531234A1 EP 1531234 A1 EP1531234 A1 EP 1531234A1 EP 04090415 A EP04090415 A EP 04090415A EP 04090415 A EP04090415 A EP 04090415A EP 1531234 A1 EP1531234 A1 EP 1531234A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- inner cover
- cover tape
- sealing
- tape according
- plastic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000654 additive Substances 0.000 claims abstract description 21
- 239000000835 fiber Substances 0.000 claims abstract description 12
- 230000000996 additive effect Effects 0.000 claims abstract description 6
- 239000000843 powder Substances 0.000 claims abstract 2
- 238000007789 sealing Methods 0.000 claims description 24
- 239000000463 material Substances 0.000 claims description 10
- 239000010410 layer Substances 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 230000003068 static effect Effects 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 229910002804 graphite Inorganic materials 0.000 claims description 5
- 239000010439 graphite Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 239000002347 wear-protection layer Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 230000003628 erosive effect Effects 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- 239000012791 sliding layer Substances 0.000 claims description 3
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 2
- 239000004917 carbon fiber Substances 0.000 claims description 2
- 238000003860 storage Methods 0.000 claims description 2
- 239000002131 composite material Substances 0.000 claims 1
- 238000001746 injection moulding Methods 0.000 description 6
- 238000011144 upstream manufacturing Methods 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
-
- 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
-
- 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
- F01D11/001—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between stator blade and rotor
-
- 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
- F01D17/00—Regulating or controlling by varying flow
- F01D17/10—Final actuators
- F01D17/12—Final actuators arranged in stator parts
- F01D17/14—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits
- F01D17/16—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of nozzle vanes
- F01D17/162—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of nozzle vanes for axial flow, i.e. the vanes turning around axes which are essentially perpendicular to the rotor centre line
-
- 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
- F05D2300/00—Materials; Properties thereof
- F05D2300/40—Organic materials
- F05D2300/43—Synthetic polymers, e.g. plastics; Rubber
-
- 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
- F05D2300/00—Materials; Properties thereof
- F05D2300/60—Properties or characteristics given to material by treatment or manufacturing
- F05D2300/603—Composites; e.g. fibre-reinforced
Definitions
- the invention relates to an inner cover strip for the stator blades a gas turbine, in particular an air turbine, the Means for rotatably supporting the stator blades and for sealing between the rotor stages and with respect to one having secondary air system.
- a gas turbine In a gas turbine is, for example, in the combustion chamber upstream compressor, between the adjacent Rotor stages each arranged a vane ring.
- the front steps of the vanes are adjustable.
- the adjustable vanes are via pivot pins stored in the compressor housing.
- the inner cover tape At the inner pivot of the Guide vanes, the inner cover tape is arranged. With the adjustable Vanes, the air is diverted so that at an optimum angle to the subsequent rotor stage meets.
- inner cover tape for the stator blade ring is usually made up of two semicircular ring segments assembled, which also executed divided in the axial direction can be and in this case after mounting through suitable fasteners are connected together.
- the inner cover tape serves as a rotatable support the respective stator blade via a connected thereto Pivot, which fixed in a in the inner shroud Plain bearing bush is stored.
- the formation of the inner cover tape made of a metallic material ensures both the required mechanical properties such as stiffness and Strength and also ensures a high resistance against erosion or foreign body impact.
- a Another important function of the inner cover tape is in its Sealing effect against the rotor to prevent recirculation the compressed air from the area higher Pressure in the area of lower pressure.
- the inner cover bands of the type described above have about the required strength and thermal expansion properties, but are disadvantageous insofar as their production by forging and subsequent machining time consuming and expensive and the inner cover tape also has a high weight.
- the production cost is on the other hand very high, that the plain bearing bushes and Seals separately manufactured components are, on the one hand are expensive and also used separately or mounted.
- the invention is based on the object, an inner cover tape for the stator blades of the compressor of a gas turbine, which has a low weight, simple and inexpensive can be made and over all required Characteristics in terms of thermal expansion, strength, the temperature resistance, resistance to Foreign body action as well as the slide bearing and sealing features.
- the essential idea of the invention is the training the inner cover band from a known injection molding process or another suitable process, one-piece plastic part, in the achieve the various functions of the inner cover tape additives such as glass and / or carbon fibers and / or Graphite or prefabricated solid inserts that function of the respective part of the inner cover, are involved.
- certain additives are specific Part of the plastic part, which has a specific Function, concentrated. So is in the of the air flow directly applied area of the inner cover tape a wear protection layer of incorporated in the plastic long fibers or from a prefabricated, when Injection molded molded wear protection plate formed.
- the plastic integrates a running-in layer, made either of the base material, an accumulation of during manufacture in high concentration introduced additives or from a prefabricated, molded during manufacture Molded part with inlet properties compared to those on the rotor Dense tips exists.
- the seal to the secondary Air system may be due to the formation of the inner cover tape from a plastic part, preferably with one of these molded elastic sealing lip made due to the additives (concentration or type of additives) the has required elasticity and due to the prevailing Can apply air pressure to a sealing surface.
- the Plastic also has the beneficial property of being, like required for the inner cover tape, under heat expand.
- the additives present in the plastic material In addition, however, also ensure that the thermal expansion of the inner cover strip to the thermal expansion of the adjacent Components, is adjusted.
- the one-piece made of plastic with the necessary additives or prefabricated inserts by injection molding or other suitable method produced inner shroud will be appropriate the heat load capacity of the plastic used, preferably in the first stages of the compressor of a jet turbine. Particularly advantageous are the low weight and the simple, cost-effective production of such a trained Inner shroud.
- the material supply spatially and temporally, so controlled that in certain areas of the mold plastic material with a given proportion of additives passes.
- Prefabricated inserts for certain functional areas of the mold are in the mold is inserted and during the casting process in the plastic material formed.
- the inner cover tape consists of two semicircular plastic parts, the total of the annular inner shroud form.
- the plastic parts can also be divided axially be. In this case, the two parts after joining held together during assembly by a screw, by a direct in the plastic or in a molded into the plastic part threaded bushing engaging screw.
- connecting with Bolts and nuts is the plastic part in this area by additives or one formed in both halves Bush solidified.
- Fig. 1 for a better understanding of the integration of the inner cover tape shown in the compressor, according to the state
- the art trained compressor usually includes a Rotor 1 with several formed by a rotor blade ring Rotor stages and each one of the relevant rotor stage upstream, comprising a stator blade ring Stator.
- Fig. 1 shows a rotor blade 2 of the first rotor stage and one of these upstream stator blade 3.
- Die Stator blade 3 is connected via an inner connected thereto and outer pivots 4 and 5 in an undivided metallic Inner shroud 6 and the compressor housing 7 rotatable and adjustable to store due to the position of the Stator vane a desired air angle for the to be able to set the next rotor stage.
- the inner pivot 4 is mounted in a slide bushing 8.
- On a housing part 9 of the aircraft turbine is to seal against the secondary Air system attached to a static (first) seal 10, the with a sealing surface on the inner shroud 6 in sealing Active compound is.
- a dynamic (second) seal 11 is provided between the inner shroud and the rotor stage.
- the plastic part additionally contain graphite in the area the bearing of the inner pivot 4 and the dynamic Seal 11 the sliding and inlet properties improve.
- the dynamic seal 11 includes one of the Material of the plastic part existing inlet layer (Sliding layer) 12, which formed with the rotor 1 sealing tips 13 is in contact. As shown in FIG.
- the inlet layer also from a prefabricated insert 14 from another Material with inlet and sliding properties exist, the molded during injection molding in the plastic part.
- a sliding bush (not shown) form fit be integrated into the plastic part. It is beyond that possible that additives with certain properties in concentrated form in the storage or inlet layer area of the plastic part are introduced to be integral with the plastic a highly effective sliding layer or shrinkage layer form. An example of this is in 2 a on the air guide side of the inner cover tape. 6 concentrated in the plastic from this area Additive formed wear protection layer 15.
- wear protection layer 15 may also be in the plastic part molded insert during injection molding, for example a metal sheet, his.
- the static (first) seal 10 consists of a molded from the plastic part Sealing lip, which is due to its flexural elastic properties and also under the effect of on the side of first rotor stage of high pressure elastic to the opposite fixed sealing part 16 of the housing part 9 applies.
- various fibers for example glass, coal and / or Metal fibers provided. To achieve the desired Functions, these fibers can be in the desired location are introduced with different lengths, e.g. are desirable for the wear-resistant layer long fibers, while for the adjustment of the basic mechanical strength and the thermal expansion behavior short fibers sufficient are.
- FIG. 3 of an axially divided formed inner band consisting of two separate, in one piece by injection molding or other suitable method manufactured plastic parts (inner cover halves 6a, 6b) is only the first (static) seal 10 in Form of the sealing lip provided and to the first inner shroud half 6a molded.
- the two inner shroud halves 6a, 6b are by screw connections, each consisting of a Screw and a nut, held together.
- a certain strength in this area can also achieved by a high additive content (fiber content) become.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
- Fig. 1
- eine Teilansicht eines für eine Flugturbine vorgesehenen Verdichters mit einem der ersten Stufe des Rotors vorgeschalteten Stator, der ein in herkömmlicher Weise ausgebildetes Innendeckband aufweist;
- Fig. 2
- eine Schnittansicht eines ungeteilten erfindungsgemäßen Innendeckbandes aus Kunststoff mit in diesem drehbar gelagerter Statorschaufel; und
- Fig. 3
- eine Schnittansicht eines axial geteilten erfindungsgemäßen Innendeckbandes, jedoch ohne Abdichtung zur Rotorstufe.
- 1
- Rotor
- 2
- Rotorschaufel
- 3
- Statorschaufel
- 4
- Innerer Drehzapfen v. 3
- 5
- Äußerer Drehzapfen v. 3
- 6
- Innendeckband
- 6a, 6b
- Innendeckbandhälften
- 7
- Verdichtergehäuse
- 8
- Gleitbuchse
- 9
- Gehäuseteil
- 10
- Erste (statische) Dichtung (Dichtlippe)
- 11
- Zweite (dynamische) Dichtung
- 12
- Einlaufschicht v. 11
- 13
- Dichtspitzen v. 11
- 14
- Einsatz (Einlaufschichteinsatz) v. 11
- 15
- Verschleißschutzschicht (Verschleißschutz-Einsatzplatte)
- 16
- Dichtungsteil v. 9
- 17
- Schraube
- 18
- Mutter
- 19a/b
- Buchsen
Claims (9)
- Innendeckband für die Statorschaufeln des Verdichters einer Gasturbine, insbesondere Flugturbine, das Mittel zur drehbeweglichen Abstützung der Statorschaufeln und zur Abdichtung zwischen den Rotorstufen und/oder gegenüber einem sekundären Luftsystem aufweist, dadurch gekennzeichnet, dass das Innendeckband (6) aus einem einstückigen Kunststoffteil gebildet ist, in das vollständig oder konzentriert in Teilbereichen mit bestimmter Funktion jeweils spezifische Additive zur Einstellung der thermischem Ausdehnung des Innendeckbandes und zur Erzielung der in den jeweiligen Teilbereichen entsprechend der jeweiligen Funktion notwendigen Eigenschaften eingebunden und/oder vorgefertigte Einsätze mit derartigen Eigenschaften eingeformt sind.
- Innendeckband nach Anspruch 1, dadurch gekennzeichnet, dass das Kunststoffteil Additive in Faserund/oder Pulverform enthält.
- Innendeckband nach Anspruch 2, dadurch gekennzeichnet, dass die Additive Metallfasern und/oder Kohlefasern und/oder Glasfasern in variabler Länge und/oder Graphit umfassen.
- Innendeckband nach Anspruch 3, dadurch gekennzeichnet, dass die Additive örtlich so in dem Kunststoffteil angereichert sind, dass an der Luftaufprallseite des Innendeckbandes (6) eine Verschleißschutzschicht (15) und/oder an der Dichtungsseite gegen das sekundäre Luftsystem eine statische Dichtung (10) in Form einer elastischen Dichtlippe und/oder an der Dichtungsseite gegen die folgende Rotorstufe eine Einlaufschicht (12) mit bestimmten Einlauf-/Abriebeigenschaften gegenüber am Rotor (1) vorgesehenen Dichtspitzen (13) und im Bereich der Kontaktfläche mit der drehbar gelagerten Statorschaufel (3) eine Gleitschicht gebildet ist.
- Innendeckband nach Anspruch 1, dadurch gekennzeichnet, dass zur Lagerung der Statorschaufeln (3), zum Erosionsschutz und zum Abdichten gegenüber dem Rotor (1) vorgefertigte Bauteile mit entsprechenden Materialeigenschaften in Bezug auf Gleitfähigkeit, Verschleißschutz und Einlauf-/Dichtfähigkeit in Form einer Gleitbuchse (8), einer Verschleißschutzplatte und eines Einlaufeinsatzes (14) in das Kunststoffteil eingeformt und in diesem formschlüssig gehalten sind.
- Innendeckband nach Anspruch 1, dadurch gekennzeichnet, dass das Kunststoffteil axial geteilt ist und die beiden Innendeckbandhälften (6a, 6b) durch Befestigungsmittel lösbar verbunden sind.
- Innendeckband nach Anspruch 6, dadurch gekennzeichnet, dass als Befestigungsmittel eine Schraubverbindung vorgesehen ist, wobei eine Befestigungsschraube unmittelbar in dem Kunststoff oder in einer in diesen eingeformten Gewindebuchse verschraubbar ist.
- Innendeckband nach Anspruch 6, dadurch gekennzeichnet, dass als Befestigungsmittel eine Schrauben-Mutter-Verbindung (17, 18) vorgesehen ist, wobei zum Schutz des Kunststoffs an der Verbindungsstelle Buchsen (19a, 19b) aus einem hochfesten Material eingeformt sind.
- Innendeckband nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass es nach bekannten Verfahren zur Faserverbundherstellung mit einem Kunststoff mit gleichem oder veränderlichem Additivanteil in einer Form und/oder in die Form eingelegten vorgefertigten Einsätzen herstellbar ist.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10353810 | 2003-11-17 | ||
| DE10353810A DE10353810A1 (de) | 2003-11-17 | 2003-11-17 | Innendeckband für die Statorschaufeln des Verdichters einer Gasturbine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1531234A1 true EP1531234A1 (de) | 2005-05-18 |
| EP1531234B1 EP1531234B1 (de) | 2006-11-29 |
Family
ID=34428781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP04090415A Expired - Lifetime EP1531234B1 (de) | 2003-11-17 | 2004-11-01 | Innendeckband für die Statorschaufeln des Verdichters einer Gasturbine |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US7287957B2 (de) |
| EP (1) | EP1531234B1 (de) |
| DE (2) | DE10353810A1 (de) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007085230A1 (de) * | 2006-01-28 | 2007-08-02 | Mtu Aero Engines Gmbh | Leitschaufelsegment einer gasturbine und verfahren zu dessen herstellung |
| EP1998006A2 (de) | 2007-05-31 | 2008-12-03 | United Technologies Corporation | Haltesystem für eine Einlassleitschaufel |
| US8403630B2 (en) | 2007-08-10 | 2013-03-26 | Rolls-Royce Deutschland Ltd & Co Kg | Blade shroud with fluid barrier jet generation |
| EP2261467A3 (de) * | 2009-06-05 | 2013-07-31 | United Technologies Corporation | Deckbandanordnung für variable Eintrittsleitschaufelstruktur einer Gasturbine |
| EP2966269A1 (de) * | 2014-07-08 | 2016-01-13 | MTU Aero Engines GmbH | Verschleissschutzanordnung für eine strömungsmaschine, verfahren und verdichter |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2922950B1 (fr) * | 2007-10-31 | 2014-05-09 | Snecma | Cartouche de materiau abradable |
| GB2455785B (en) * | 2007-12-21 | 2009-11-11 | Rolls Royce Plc | Annular component |
| US8500394B2 (en) | 2008-02-20 | 2013-08-06 | United Technologies Corporation | Single channel inner diameter shroud with lightweight inner core |
| US8177494B2 (en) * | 2009-03-15 | 2012-05-15 | United Technologies Corporation | Buried casing treatment strip for a gas turbine engine |
| EP2586989B1 (de) * | 2011-10-27 | 2015-04-29 | Techspace Aero S.A. | Koinjizierter Verbundring eines Kompressors eines axialen Turbotriebwerks |
| GB2496887A (en) * | 2011-11-25 | 2013-05-29 | Rolls Royce Plc | Gas turbine engine abradable liner |
| JP6078353B2 (ja) * | 2013-01-23 | 2017-02-08 | 三菱日立パワーシステムズ株式会社 | ガスタービン |
| US10221718B2 (en) | 2013-09-09 | 2019-03-05 | United Technologies Corporation | Fan cases and manufacture methods |
| WO2015077011A1 (en) | 2013-11-19 | 2015-05-28 | United Technologies Corporation | Multi-element inner shroud extension for a turbo-machine |
| DE102015202070A1 (de) * | 2015-02-05 | 2016-08-25 | MTU Aero Engines AG | Gasturbinenbauteil |
| US9777593B2 (en) | 2015-02-23 | 2017-10-03 | General Electric Company | Hybrid metal and composite spool for rotating machinery |
| US10260527B2 (en) | 2016-05-17 | 2019-04-16 | General Electric Company | Method and system for mitigating rotor bow |
| US10858950B2 (en) | 2017-07-27 | 2020-12-08 | Rolls-Royce North America Technologies, Inc. | Multilayer abradable coatings for high-performance systems |
| US10900371B2 (en) | 2017-07-27 | 2021-01-26 | Rolls-Royce North American Technologies, Inc. | Abradable coatings for high-performance systems |
| DE102018106102A1 (de) * | 2018-03-15 | 2019-09-19 | Universität Stuttgart | Leitschaufeleinrichtungen für eine Gasturbine und Gasturbine |
| US10808565B2 (en) * | 2018-05-22 | 2020-10-20 | Rolls-Royce Plc | Tapered abradable coatings |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1366075A (en) * | 1970-09-16 | 1974-09-11 | Secr Defence | Bladed fluid flow machines |
| US3849023A (en) * | 1973-06-28 | 1974-11-19 | Gen Electric | Stator assembly |
| EP0171329A1 (de) * | 1984-08-08 | 1986-02-12 | RATIER-FIGEAC, Société dite: | Leitschaufel für Reaktionsmotor |
| GB2203197A (en) * | 1987-04-07 | 1988-10-12 | Mtu Muenchen Gmbh | Axial guide vane assembly for compressors |
| US5062767A (en) * | 1990-04-27 | 1991-11-05 | The United States Of America As Represented By The Secretary Of The Air Force | Segmented composite inner shrouds |
| EP0602631A1 (de) * | 1992-12-18 | 1994-06-22 | Mtu Motoren- Und Turbinen-Union MàNchen Gmbh | Verfahren zur Herstellung eines Leitgitters für Turbomaschinen, insbesondere für Axialverdichter |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4655682A (en) * | 1985-09-30 | 1987-04-07 | United Technologies Corporation | Compressor stator assembly having a composite inner diameter shroud |
| US5421703A (en) * | 1994-05-25 | 1995-06-06 | General Electric Company | Positively retained vane bushing for an axial flow compressor |
| US6425736B1 (en) * | 1999-08-09 | 2002-07-30 | United Technologies Corporation | Stator assembly for a rotary machine and method for making the stator assembly |
| DE10161292A1 (de) * | 2001-12-13 | 2003-06-26 | Rolls Royce Deutschland | Lagerring zur Lagerung von Schaufelfüßen von verstellbaren Statorschaufeln im Hochdruckverdichter einer Gasturbine |
-
2003
- 2003-11-17 DE DE10353810A patent/DE10353810A1/de not_active Withdrawn
-
2004
- 2004-11-01 DE DE502004002161T patent/DE502004002161D1/de not_active Expired - Lifetime
- 2004-11-01 EP EP04090415A patent/EP1531234B1/de not_active Expired - Lifetime
- 2004-11-17 US US10/989,354 patent/US7287957B2/en not_active Expired - Lifetime
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1366075A (en) * | 1970-09-16 | 1974-09-11 | Secr Defence | Bladed fluid flow machines |
| US3849023A (en) * | 1973-06-28 | 1974-11-19 | Gen Electric | Stator assembly |
| EP0171329A1 (de) * | 1984-08-08 | 1986-02-12 | RATIER-FIGEAC, Société dite: | Leitschaufel für Reaktionsmotor |
| GB2203197A (en) * | 1987-04-07 | 1988-10-12 | Mtu Muenchen Gmbh | Axial guide vane assembly for compressors |
| US5062767A (en) * | 1990-04-27 | 1991-11-05 | The United States Of America As Represented By The Secretary Of The Air Force | Segmented composite inner shrouds |
| EP0602631A1 (de) * | 1992-12-18 | 1994-06-22 | Mtu Motoren- Und Turbinen-Union MàNchen Gmbh | Verfahren zur Herstellung eines Leitgitters für Turbomaschinen, insbesondere für Axialverdichter |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007085230A1 (de) * | 2006-01-28 | 2007-08-02 | Mtu Aero Engines Gmbh | Leitschaufelsegment einer gasturbine und verfahren zu dessen herstellung |
| EP1998006A2 (de) | 2007-05-31 | 2008-12-03 | United Technologies Corporation | Haltesystem für eine Einlassleitschaufel |
| EP1998006A3 (de) * | 2007-05-31 | 2012-05-16 | United Technologies Corporation | Haltesystem für eine Einlassleitschaufel |
| US8403630B2 (en) | 2007-08-10 | 2013-03-26 | Rolls-Royce Deutschland Ltd & Co Kg | Blade shroud with fluid barrier jet generation |
| EP2261467A3 (de) * | 2009-06-05 | 2013-07-31 | United Technologies Corporation | Deckbandanordnung für variable Eintrittsleitschaufelstruktur einer Gasturbine |
| US8951010B2 (en) | 2009-06-05 | 2015-02-10 | United Technologies Corporation | Inner diameter shroud assembly for variable inlet guide vane structure in a gas turbine engine |
| EP2966269A1 (de) * | 2014-07-08 | 2016-01-13 | MTU Aero Engines GmbH | Verschleissschutzanordnung für eine strömungsmaschine, verfahren und verdichter |
Also Published As
| Publication number | Publication date |
|---|---|
| US20050220612A1 (en) | 2005-10-06 |
| DE502004002161D1 (de) | 2007-01-11 |
| US7287957B2 (en) | 2007-10-30 |
| EP1531234B1 (de) | 2006-11-29 |
| DE10353810A1 (de) | 2005-06-23 |
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