EP0926311B1 - Rotor einer Strömungsmaschine - Google Patents
Rotor einer Strömungsmaschine Download PDFInfo
- Publication number
- EP0926311B1 EP0926311B1 EP19970811025 EP97811025A EP0926311B1 EP 0926311 B1 EP0926311 B1 EP 0926311B1 EP 19970811025 EP19970811025 EP 19970811025 EP 97811025 A EP97811025 A EP 97811025A EP 0926311 B1 EP0926311 B1 EP 0926311B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rotor
- cavity
- feed
- passage
- rotor according
- 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
- F01D5/02—Blade-carrying members, e.g. rotors
- F01D5/08—Heating, heat-insulating or cooling means
- F01D5/085—Heating, heat-insulating or cooling means cooling fluid circulating inside the 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
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/02—Blade-carrying members, e.g. rotors
- F01D5/08—Heating, heat-insulating or cooling means
- F01D5/081—Cooling fluid being directed on the side of the rotor disc or at the roots of the blades
- F01D5/084—Cooling fluid being directed on the side of the rotor disc or at the roots of the blades the fluid circulating at the periphery of a multistage rotor, e.g. of drum type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/02—Blade-carrying members, e.g. rotors
- F01D5/08—Heating, heat-insulating or cooling means
- F01D5/085—Heating, heat-insulating or cooling means cooling fluid circulating inside the rotor
- F01D5/087—Heating, heat-insulating or cooling means cooling fluid circulating inside the rotor in the radial passages of the rotor disc
Definitions
- the invention relates to a rotor of a turbomachine, which on a Surface of its rotor shaft in one or more rows of blades and / or other parts, for example.
- Heat shields or heat accumulation segments each of which a foot protruding through the surface into the rotor shaft.
- GB-A-742 242 describes a rotor for a turbine which is made of has several composite disc wheels composite shaft. Air chambers are formed between the disk wheels, which pass through air supply channels be supplied with fresh air from outside. On the circumference of the disc wheels blades are used with their feet, being below the feet of the blades Cavities are formed which are connected to the air chambers, so that at least the feet of the blades are supplied with a cooling medium.
- EP-A-0 037 897 a gas turbine with a device for cooling the Described inside the gas turbine.
- the gas turbine consists of a rotor and a Stator.
- the cooling gas is introduced through an inlet channel into a buffer channel which it is withdrawn through an outlet channel into a buffer space located in the rotor becomes.
- An oblique hole leads from the buffer space to a fastening space for a blade root. Due to the oblique arrangement of the hole Cooling gas is transported to the blade root by centrifugal force.
- the document DE-A-43 24 034 shows a gas turbine with one of several disks welded and bladed rotor. There are cavities between the panes educated. The cavity communicates with axial channels and is covered by a central cooling air supply coming from the downstream rotor end fed.
- GB-A-810 459 describes a rotor of a turbomachine with an air-cooled one Shovel.
- the Invention based on the object, with the simplest possible means, the rotor and in particular the surface areas of the rotor shaft of a turbomachine and the radially arranged blades as directly as possible, but using a gentle cooling medium, preferably air.
- a gentle cooling medium preferably air.
- the measures according to the invention should also be retrofitted to turbomachines that are already in use can be.
- This task according to the invention is corresponding with a rotor of a turbomachine the preamble of claim 1 solved in that over the circumference of the rotor shaft at least two feed-through channels are arranged adjacent, in one feed-through channel the cooling medium circulates radially outward from the cavity into a hollow channel and into the feed-through channel adjacent in the circumferential direction, the cooling medium from the hollow channel recirculated radially inward into the cavity.
- the idea on which the invention is based is based on the consideration that the heat acting on the surface of the rotor shaft together with rotor blades hot gases flowing around the rotor, as close as possible to the peripheral peripheral edge the rotor shaft is to be dissipated directly by a suitable supply of cooling air to the Deflect the temperature of the rotor material and that of the rotor feet.
- the rotors that are located just below their peripheral peripheral edge Have rotor shaft cavities with radial and / or oblique through channels provided so that the peripheral peripheral edge heated by the hot gases along with blades from the side of the cavity, which in turn has a cooling system with a cooling medium, preferably cooling air, is cooled can.
- a cooling medium preferably cooling air
- FIG. 2 A rotor shaft contour known per se, which is used to carry out the inventive Measures are suitable, is shown in Fig. 2 as a representation of the prior art.
- the highly schematic cross-sectional drawing according to FIG. 2 represents the represents the upper section of a rotor shaft 1 which rotates about the rotor shaft axis A.
- rotor blades radial to the rotor shaft axis 2 arranged.
- guide vanes 3 are shown, which are fixedly attached to the stator and in the spaces protrude between two successive blades 2.
- the over The arrow shown in the blade breaks represents the direction of flow of the hot gas through the turbines.
- Section E should be placed near a blade root of a moving blade provides a cavity at the peripheral peripheral edge of the rotor shaft.
- the idea of the invention basically provides the area of the rotor shaft above to perforate the cavity so that air exchange between the top of the Rotor shaft and the cooling air located in the cavity can take place.
- the area of the rotor shaft must be provided with such a perforation so that the cooling air in the cavity directly touches the blade root area of the blades can cool.
- FIG. 1 The cross-sectional view shown in Fig. 1, which is only a section shows the rotor cross-section corresponds to a central section of one according to the invention stepped rotor, with the aid of the representation according to FIG. 2 the point is to be thought of which corresponds to the circle delimited by E in FIG. 2.
- the Circle preferably includes all those blade roots that with the invention "Perforation" can be detected.
- the blade root 7 can be in a circumferential groove 8 or in an axial groove which is axial or extends obliquely axially on the surface of the rotor shaft 1.
- the circumferential groove 8 and / or axial groove and the blade root 7 can jags for mutual attachment exhibit.
- the constant heat flow Q acts through the Hot gases flowing around the rotor.
- the Schaufeffuß 7 of a moving blade which in a Circulation groove 8 is fixed within the rotor shaft 1 with the aid of a feed-through channel 9 to be charged directly with cooling air.
- a cavity 5 is close to the Blade provided within the rotor shaft 1 and with a passage channel 9 connected such that the feed-through channel 9 is largely radial to Shaft axis A extends from the cavity 5 to the blade root 7.
- the cavity 5 is connected to a cooling system 4, via which a cooling medium in the Cavity 5 can be fed.
- the supply 4a of the cooling medium into the cavity 5 is advantageously such that a swirl occurs in cavity 5 relative to the rotor.
- the return 4b of the heated Cooling medium from the cavity 5 is advantageously carried out on the inner surface of the cavity because the heated cooling medium collects there.
- the opening of the feed channel 4a into the cavity 5 must e.g. with large radii or bevels or guide vanes in such a way that the cooling medium flows in well can. If the latter is too warm for the rotor, the discharge duct 4b can always be used still isolate, e.g. through a lining pipe or a thermal insulation layer.
- the circumferential groove 8 in which the blade root 7 is fastened also has a hollow channel 10 on, in which the cooling air present in the cavity 5 via the duct 9 can reach.
- the circumferential groove 8 runs completely angularly around the rotor shaft 1, in which a plurality are arranged one behind the other.
- the individual hollow channels 10 under each blade root of a moving blade together form a circumferential channel 10 'through which the cooling air introduced via the duct 9 circulates can. In this way, an integral cooling system that cools the blade feet is inside the rotor shaft can be realized.
- feed-through channels 9 ' are also provided which cover the peripheral area the rotor shaft completely or only partially. That way the heat flow Q acting on the peripheral peripheral edge 6 directly through the feed-through channels 9 'in the direction of the cavity 5 are provided in the cooling air is derived.
- the cooling arrangement shown in Fig. 1, preferably for Cooling the rotor blades in the middle of the rotor can be done in different ways Be designed so that the cooling air for removal of the the existing blade heat is used.
- the cooling air located near the blade root in the hollow duct 1 0 warms due to the large heat input and experiences in the presence of the by the rotation of the rotor generated centrifugal field so much lift that the warmer air directed radially inward climbs through the duct this gives way to the incoming colder air, so that it is called hot Shovel feet can cool.
- This convection flow that forms in the centrifugal field arises automatically due to the temperature gradient.
- the Feedthrough channels must, however, be made correspondingly large, so that countercurrent system within a channel as described above can train.
- the openings of the feed-through channels, which end in the cavity 5, should open a smaller radius, measured from the axis of rotation of the rotor, than the areas of the rotor shaft where the heat is applied.
- the design of the cavity can be designed as desired. So it is not mandatory required that the upper contour of the cavity from which the feed-through channels 9 go out, runs obliquely to the rotor shaft axis A. They can also Feed-through channels 9 also depart from cavity wall sections that are vertical or run vertically relative to the rotor shaft axis A. Essential with the arrangement of the feed-through channels 9, however, is that the openings of the feed-through channels 9 lie on a smaller radius relative to the rotor shaft axis than that Areas of the feedthrough channels to which the heat is supplied, so that the Principle of the so-called thermosiphon is applicable. In this case, the Rotor shaft the difference between the pumping power for the cold cooling air and the Apply the turbine output of the warm cooling air.
- the openings 11, 11 ' largely on the same radius lie relative to the rotor shaft axis A; if this is not the case, the radial influences Pressure difference, i.e. the swirl in the cavity caused by the pressure difference Cooling effect.
- FIG. 1 b is the sectional view according to the section A entered in Fig. 1a - A is shown.
- the cross-sectional representation shown perpendicular to the axis of rotation in 1 b shows two adjacent feed-through channels 9, each on the rotor shaft side have facing openings 11, 11 'and of different sizes Inlet curves R and r have.
- the cooling medium in the cavity 5 flows relative to the rotor in the direction indicated by the large arrow.
- This Cross flow over the openings 11, 11 'is in the holes 11 with the larger ones Opening radii R generate a higher pressure than in the holes 11 'with smaller ones Opening radius r.
- This Flow continues through the circumferential groove 10 'and returns in the adjacent channels 9 with the smaller opening radii r back into the cavity 5.
- opening area of a through-channel in such a way that an opening has two different radii R and r. So it is for the above described flow direction specification necessary, the opening areas two adjacent passageways, which are closest to each other form the same radii of curvature.
- opening contours shown can create real scooping edges at the respective points of the openings of the through channels be provided. However, this is with an additional constructive Effort associated with the operation of the above "Thermosyphons" is not absolutely necessary.
- the direct cooling of the blade feet of the moving blades by a targeted below the cooling medium introduced, preferably cooling air, is also the blade roots for reasons of possible contamination by dust particles within the Cooling system an advantage.
- dust particles get through the feed-through channels in the circumferential grooves of the mounting rails, they can in principle also to blockages of the circumferential grooves and thus to a considerable one Reduce the cooling effect.
- one can counteract such contamination Provide so-called dust holes, such as those in cooled blades are used, on the other hand, it is easy for maintenance work Effort possible by removing the blades from the mounting rail to easily remove contaminants deposited in the circumferential grooves.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Description
- Fig. 1a
- Teilquerschnittdarstellung durch einen Teil des peripheren Umfangsrandes einer Rotorwelle mit einem geschlossenen Hohlraum,
- Fig. 1 b
- Schnittdarstellung gemäß Schnittlinie A - A in Fig. 1 a,
- Fig. 1 c
- alternative Schnittdarstellung zur Figur 1 b und
- Fig. 2
- Prinzipquerschnittsdarstellung durch eine an sich bekannte Rotoranordnung.
- 1
- Rotorwelle
- 2
- Laufschaufel
- 3.
- Leitschaufel
- 4.
- Kühlsystem
- 4a
- Zuführungskanal
- 4b
- RückführungManal
- 5·
- Hohlraum
- 6·
- Oberfläche der Rotorwelle
- 7·
- Schaufelfuß
- 8·
- Umfängsnut
- 9, 9'
- Durchführungskanal
- 10
- Hohlkanal
- 10'
- Umfangsnut
- 11, 11'
- Öffnungen der Durchführungskanäle
- A
- Rotorwellenachse
- R, r
- Großer und kleiner Krümmungsradius der Öffnungen 11, 11'
Claims (22)
- Rotor einer Strömungsmaschine, der an einer Oberfläche (6) seiner Rotorwelle (1) in einer oder mehreren Reihen Laufschaufeln (2) und/oder andere Teile vorsieht, die jeweils über einen Fuß (7) zur Befestigung (1) durch die Oberfläche (6) in die Rotorwelle (1) hineinragen, wobei die Rotorwelle (1) an wenigstens einem Bereich unterhalb der Oberfläche (6) nahe wenigstens eines Fußes (7) wenigstens einen geschlossenen Hohlraum (5) aufweist, wobei der Hohlraum (5) über wenigstens einen Durchführungskanal (9) mit dem rotorwellenseitig zugewandten Ende eines Fußes (7) zu Kühlzwecken verbunden ist, und wobei ein Kühlsystem (4) vorgesehen ist, durch das der Hohlraum (5) mit einem Kühlmedium versorgbar ist,
dadurch gekennzeichnet, dass
über den Umfang der Rotorwelle (1) benachbart mindestens zwei Durchführungskanäle (9) angeordnet sind, wobei in einem Durchführungskanal (9) das Kühlmedium vom Hohlraum (5) radial auswärts in einen Hohlkanal (10) zirkuliert und in dem in Umfangsrichtung benachbarten Durchführungskanal (9) das Kühlmedium vom Hohlkanal (10) radial einwärts in den Hohlraum (5) rückzirkuliert. - Rotor nach Anspruch 1,
dadurch gekennzeichnet, daß
als Kühlmedium Kühlluft vorgesehen ist. - Rotor nach einem der Ansprüche 1 oder 2,
dadurch gekennzeichnet, daß
der Hohlraum (5) von den Enden der Rotorwelle (1) beabstandet ist. - Rotor nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, daß
mindestens ein Durchführungskanal (9) radial oder schrägradial zur Rotorwelle (1) angeordnet ist. - Rotor nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet, daß der Fuß (7) in einer Umfangsnut (8) innerhalb der Rotorwelle (1) sitzt, die radial unterhalb des eingesetzten Fußes (7) den Hohlkanal (10) vorsieht, der mit den mindestens zwei Durchführungskanälen (9) verbunden ist. - Rotor nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet, daß
der Fuß (7) in einer Axialnut, die axial oder schrägaxial an der Oberfläche der Rotorwelle (1) verläuft, innerhalb der Rotorwelle (1) sitzt, die radial unterhalb des eingesetzten Fußes (7) den Hohlkanal (10) vorsieht, der mit den mindestens zwei Durchführungskanälen (9) verbunden ist. - Rotor nach Anspruch 5 oder 6,
dadurch gekennzeichnet, daß
die Umfangsnut und/oder Axialnut sowie der Fuß Zacken für eine gegenseitige Befestigung aufweisen. - Rotor nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet daß
eine Vielzahl von Laufschaufeln (2) oder Teilen radial an der Oberfläche (6) der Rotorwelle (1) nebeneinander angeordnet ist, zu deren Füßen (7) jeweils ein Durchführungskanal (9) zugeordnet ist. - Rotor nach Anspruch 8,
dadurch gekennzeichnet, daß
ein Durchführungskanal (9) eine Öffnung (11, 11') zum Hohlraum (5) aufweist, deren Einlassrundung in radialer Richtung jeweils derart bemessen ist, daß die Öffnungen (11, 11') zweier unmittelbar benachbarter Durchführungskanäle (9) unterschiedliche Radien (R, r) besitzen. - Rotor nach Anspruch 9,
dadurch gekennzeichnet, daß
die Öffnungen (11, 11') eine große (R) oder eine kleine (r) Einlassrundung aufweisen. - Rotor nach Anspruch 8,
dadurch gekennzeichnet, daß
die Öffnung (11, 11') eines Durchführungskanals (9) zwei unterschiedlich groß ausgebildete Einlassrundungen (R, r) in radialer Richtung aufweist und benachbarte Einlassrundungen (R, r) zwischen zwei Durchführungskanälen (9) übereinstimmen. - Rotor nach einem der Ansprüche 1 bis 11,
dadurch gekennzeichnet, daß
die Hohlkanäle (10) unter allen, um die Rotorwelle (1) verteilt angebrachten Füßen miteinander zu einem Umfangskanal (10') verbunden sind. - Rotor nach Anspruch 12,
dadurch gekennzeichnet, daß
eine geradzahlige Anzahl radialer und/oder schrägradialer Durchgangskanäle (9) in einen Umfangskanal (10') mündet. - Rotor nach einem der Ansprüche 1 bis 13,
dadurch gekennzeichnet, daß
die Strömungsmaschine eine Turbine, eine Verdichterstufe einer Gasturbine oder einer Dampfturbine ist. - Rotor nach einem der Ansprüche 1 bis 14,
dadurch gekennzeichnet, daß
sich der Rotor relativ zu einem, in dem Hohlraum (5) enthaltenen Medium bewegt. - Rotor nach einem der Ansprüche 1 bis 15,
dadurch gekennzeichnet, daß
der Fuß (7) einer Laufschaufel (2) oder eines Teils radial über dem Hohlraum (5) angeordnet ist. - Rotor nach einem der Ansprüche 1 bis 16,
dadurch gekennzeichnet, daß
das Teil ein Wärmesegment oder ein Hitzeschild ist. - Rotor nach einem der Ansprüche 1 bis 17,
dadurch gekennzeichnet, daß das Kühlsystem (4) Kühlkanäle (4a, 4b) aufweist, die in der Rotorwelle (1) verlaufen und mit Kühlluft versorgbar sind. - Rotor nach einem der Ansprüche 1 bis 18,
dadurch gekennzeichnet, daß
die Kühlkanäle (4a, 4b) des Kühlsystems (4) dem Kühlmedium im Hohlraum (5) einen zum Rotor relativen Drall in der Umfangsrichtung des Rotors erteilen, wobei der relative Drall mit der Drehrichtung des Rotors oder entgegen strömen kann. - Rotor nach einem der Ansprüche 1 bis 19,
dadurch gekennzeichnet, daß
einer der Kühlkanäle (4a, 4b) ein Rückführkanal (4b) ist, der das erwärmte Kühlmedium aus dem Hohlraum (5) abführt und am innersten Radius des Hohlraums (5) mündet. - Rotor nach einem der Ansprüche 1 bis 20,
dadurch gekennzeichnet, daß der Kühlkanal (4b), der das erwärmte Kühlmedium aus dem Hohlraum (5) abführt, gegen das Rotormaterial isoliert ist. - Rotor nach einem der Ansprüche 1 bis 21,
dadurch gekennzeichnet, daß der Hohlraum (5) sich bis zur Rotorwellenachse (A) erstreckt.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE59710425T DE59710425D1 (de) | 1997-12-24 | 1997-12-24 | Rotor einer Strömungsmaschine |
EP19970811025 EP0926311B1 (de) | 1997-12-24 | 1997-12-24 | Rotor einer Strömungsmaschine |
JP36321398A JP4372250B2 (ja) | 1997-12-24 | 1998-12-21 | 流体機械のロータ |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP19970811025 EP0926311B1 (de) | 1997-12-24 | 1997-12-24 | Rotor einer Strömungsmaschine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0926311A1 EP0926311A1 (de) | 1999-06-30 |
EP0926311B1 true EP0926311B1 (de) | 2003-07-09 |
Family
ID=8230550
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19970811025 Expired - Lifetime EP0926311B1 (de) | 1997-12-24 | 1997-12-24 | Rotor einer Strömungsmaschine |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0926311B1 (de) |
JP (1) | JP4372250B2 (de) |
DE (1) | DE59710425D1 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1785587A1 (de) | 2005-11-11 | 2007-05-16 | Siemens Aktiengesellschaft | Innengekühlter Rotor einer Strömungsmaschine |
JP4939461B2 (ja) * | 2008-02-27 | 2012-05-23 | 三菱重工業株式会社 | タービンディスク及びガスタービン |
EP2837769B1 (de) | 2013-08-13 | 2016-06-29 | Alstom Technology Ltd | Rotorwelle für eine Turbomaschine |
JP2015178832A (ja) | 2014-03-19 | 2015-10-08 | アルストム テクノロジー リミテッドALSTOM Technology Ltd | 冷却孔入口を備えるロータ軸 |
EP3061909B1 (de) * | 2015-02-26 | 2018-10-03 | Ansaldo Energia Switzerland AG | Rotorwelle mit Kühlbohrungseinlässen |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB742242A (en) * | 1951-02-15 | 1955-12-21 | Power Jets Res & Dev Ltd | Improvements in the cooling of turbine rotors |
GB810459A (en) * | 1955-06-14 | 1959-03-18 | Gen Electric | Improved turbomachine rotor with air-cooled blading |
DE959868C (de) * | 1953-07-17 | 1957-03-14 | Schilling Estate Company | Laufradanordnung fuer Verpuffungsbrennkraftturbinen hoher Drehzahl |
GB882480A (en) * | 1957-09-18 | 1961-11-15 | Escher Wyss Ag | Improvements in or relating to rotors for axial-flow turbines |
CH495496A (de) * | 1969-02-26 | 1970-08-31 | Bbc Sulzer Turbomaschinen | Turbomaschine mit gekühltem Rotor |
DE7009473U (de) * | 1970-03-14 | 1970-09-10 | Motoren Turbinen Union | Elektronenstrahl-geschweisste schaufel-radscheiben-verbindung fuer gasturbinen. |
DE3014279A1 (de) * | 1980-04-15 | 1981-10-22 | M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 4200 Oberhausen | Einrichtung zur kuehlung des inneren einer gasturbine |
DE3310396A1 (de) * | 1983-03-18 | 1984-09-20 | Kraftwerk Union AG, 4330 Mülheim | Md-dampfturbine in einflutiger bauweise fuer eine hochtemperaturdampfturbinenanlage mit zwischenueberhitzung |
DE4324034A1 (de) * | 1993-07-17 | 1995-01-19 | Abb Management Ag | Gasturbine mit gekühltem Rotor |
DE19617539B4 (de) * | 1996-05-02 | 2006-02-09 | Alstom | Rotor für eine thermische Turbomaschine |
-
1997
- 1997-12-24 DE DE59710425T patent/DE59710425D1/de not_active Expired - Lifetime
- 1997-12-24 EP EP19970811025 patent/EP0926311B1/de not_active Expired - Lifetime
-
1998
- 1998-12-21 JP JP36321398A patent/JP4372250B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0926311A1 (de) | 1999-06-30 |
DE59710425D1 (de) | 2003-08-14 |
JP4372250B2 (ja) | 2009-11-25 |
JPH11247603A (ja) | 1999-09-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE10303088B4 (de) | Abgasgehäuse einer Wärmekraftmaschine | |
EP1789654B1 (de) | Strömungsmaschinenschaufel mit fluidisch gekühltem deckband | |
EP1907670B1 (de) | Gekühlte turbinenschaufel für eine gasturbine und verwendung einer solchen turbinenschaufel | |
EP1451450B1 (de) | Gasturbogruppe | |
DE60319606T2 (de) | Abblassystem für die Statorstufe eines Verdichters | |
DE60029886T2 (de) | Einrichtung und Methode zur Kühlung von rotierenden Komponenten bei Turbinen | |
WO2007051733A1 (de) | Dampfturbine | |
DE4435322A1 (de) | Verfahren und Vorrichtung zur Wellendichtung und zur Kühlung auf der Abgasseite einer axialdurchströmten Gasturbine | |
DE102011054388A1 (de) | Inducer für ein Gasturbinensystem | |
DE665762C (de) | Einrichtung zur Kuehlung von Turbinen, insbesondere Gasturbinen | |
DE4411616C2 (de) | Verfahren zum Betreiben einer Strömungsmaschine | |
EP1659293A2 (de) | Strömungsmaschine | |
EP1180578A1 (de) | Anordnung von Turbinenschaufeln | |
DE3627306A1 (de) | Einrichtung zur belueftung von rotorbauteilen fuer verdichter von gasturbinentriebwerken | |
EP1048822A2 (de) | Hitzeschild für eine Gasturbine | |
EP1591626A1 (de) | Schaufel für Gasturbine | |
EP2881541A1 (de) | Schaufelspitzenkühlung einer Turbinenrotorschaufel einer Gasturbine | |
DE19619438B4 (de) | Wärmestausegment für eine Turbomaschine | |
EP0992656B1 (de) | Strömungsmaschine zum Verdichten oder Entspannen eines komprimierbaren Mediums | |
DE10344843A1 (de) | Integrierte Rotier-Messerkanten-Injektionsanordnung | |
EP1073827B1 (de) | Turbinenschaufel | |
EP0926311B1 (de) | Rotor einer Strömungsmaschine | |
EP1413715A1 (de) | Prallkühlung der Plattform einer Gasturbinenlaufschaufel | |
EP1621735B1 (de) | Gasturbinenrotor | |
EP1431662A1 (de) | Geschlossen gekühlte Brennkammer für eine Turbine |
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: A1 Designated state(s): DE GB |
|
AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
17P | Request for examination filed |
Effective date: 19991217 |
|
AKX | Designation fees paid |
Free format text: DE GB |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: ALSTOM |
|
17Q | First examination report despatched |
Effective date: 20020219 |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: ALSTOM (SWITZERLAND) LTD |
|
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 GB |
|
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: 59710425 Country of ref document: DE Date of ref document: 20030814 Kind code of ref document: P |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) | ||
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: 20040414 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R082 Ref document number: 59710425 Country of ref document: DE Representative=s name: UWE ROESLER, DE |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: 732E Free format text: REGISTERED BETWEEN 20120802 AND 20120808 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R082 Ref document number: 59710425 Country of ref document: DE Representative=s name: ROESLER, UWE, DIPL.-PHYS.UNIV., DE Effective date: 20120713 Ref country code: DE Ref legal event code: R081 Ref document number: 59710425 Country of ref document: DE Owner name: ANSALDO ENERGIA SWITZERLAND AG, CH Free format text: FORMER OWNER: ALSTOM (SWITZERLAND) LTD., BADEN, CH Effective date: 20120713 Ref country code: DE Ref legal event code: R081 Ref document number: 59710425 Country of ref document: DE Owner name: GENERAL ELECTRIC TECHNOLOGY GMBH, CH Free format text: FORMER OWNER: ALSTOM (SWITZERLAND) LTD., BADEN, CH Effective date: 20120713 Ref country code: DE Ref legal event code: R081 Ref document number: 59710425 Country of ref document: DE Owner name: ALSTOM TECHNOLOGY LTD., CH Free format text: FORMER OWNER: ALSTOM (SWITZERLAND) LTD., BADEN, CH Effective date: 20120713 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R082 Ref document number: 59710425 Country of ref document: DE Representative=s name: ROESLER, UWE, DIPL.-PHYS.UNIV., DE Ref country code: DE Ref legal event code: R081 Ref document number: 59710425 Country of ref document: DE Owner name: ANSALDO ENERGIA SWITZERLAND AG, CH Free format text: FORMER OWNER: ALSTOM TECHNOLOGY LTD., BADEN, CH Ref country code: DE Ref legal event code: R081 Ref document number: 59710425 Country of ref document: DE Owner name: GENERAL ELECTRIC TECHNOLOGY GMBH, CH Free format text: FORMER OWNER: ALSTOM TECHNOLOGY LTD., BADEN, CH |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20161222 Year of fee payment: 20 Ref country code: DE Payment date: 20161213 Year of fee payment: 20 |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: 732E Free format text: REGISTERED BETWEEN 20170824 AND 20170830 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R082 Ref document number: 59710425 Country of ref document: DE Representative=s name: ROESLER, UWE, DIPL.-PHYS.UNIV., DE Ref country code: DE Ref legal event code: R081 Ref document number: 59710425 Country of ref document: DE Owner name: ANSALDO ENERGIA SWITZERLAND AG, CH Free format text: FORMER OWNER: GENERAL ELECTRIC TECHNOLOGY GMBH, BADEN, CH |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R071 Ref document number: 59710425 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: PE20 Expiry date: 20171223 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 20171223 |