EP0926311A1 - Rotor einer Strömungsmaschine - Google Patents
Rotor einer Strömungsmaschine Download PDFInfo
- Publication number
- EP0926311A1 EP0926311A1 EP97811025A EP97811025A EP0926311A1 EP 0926311 A1 EP0926311 A1 EP 0926311A1 EP 97811025 A EP97811025 A EP 97811025A EP 97811025 A EP97811025 A EP 97811025A EP 0926311 A1 EP0926311 A1 EP 0926311A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rotor
- cavity
- rotor according
- rotor shaft
- channel
- 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
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.
- the Invention based on the object, the rotor as simple as possible and in particular the surface areas of the rotor shaft of a turbomachine and the rotor blades arranged radially on it as directly as possible, but using a gentle cooling medium, preferably air.
- a gentle cooling medium preferably air.
- the rotor of a turbomachine preferably the rotor a gas turbine which has rotor blades in the peripheral peripheral edge of its rotor shaft provides, each having a blade root, which is used to attach the blades protrudes into the rotor shaft on the rotor shaft via the peripheral peripheral edge and its rotor shaft in at least one area on the peripheral peripheral edge has a cavity in the rotor shaft near a blade root, designed in such a way that the rotor shaft is close to at least one area below the surface at least one foot has at least one closed cavity that the cavity via at least one feed-through channel with the rotor shaft side facing end of a foot is connected for cooling purposes, and that a cooling system is provided, through which the cavity can be supplied with a cooling medium.
- the idea on which the invention is based is based on the consideration that the heat of the surface acting on the rotor shaft together with the 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 Upper portion of a rotor shaft 1, which rotates about the rotor shaft axis A. At the Peripheral peripheral edge of the rotor shaft are rotor blades radial to the rotor shaft axis 2 arranged. Between the blades are only for completeness the guide blades 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 is placed near a blade root of a guide vane provides a cavity at the peripheral peripheral edge of the rotor shaft.
- the concept of the invention basically provides for the area of the rotor shaft to be 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. Especially 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 help 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 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 according to the invention 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 up and 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 Feed-through 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 perpendicular or run vertically relative to the rotor shaft axis A. Essential with the arrangement of the feed-through channels, however, is that the openings of the feed-through channels lie on a smaller radius relative to the rotor shaft axis than that Areas of the feed-through 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 power to 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 radii 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.
- you 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)
Abstract
Description
- Fig. Ia
- 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 (24)
- 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, dadurch gekennzeichnet, daß die Rotorwelle (1) an wenigstens einem Bereich unterhalb der Oberfläche (6) nahe wenigstens eines Fußes (7) wenigstens einen geschlossenen Hohlraum (5) aufweist, daß der Hohlraum (5) über wenigstens einen Durchführungskanal (9) mit dem rotorwellenseitig zugewandten Ende eines Fußes (7) zu Kühlzwecken verbunden ist, und daß ein Kühlsystem (4) vorgesehen ist, durch das der Hohlraum (5) mit einem Kühlmedium versorgbar ist.
- Rotor nach Anspruch 1 oder dem Oberbegriff des Anspruchs 1, dadurch gekennzeichnet daß vom Hohlraum (5) wenigstens ein Durchführungskanal (9) in die Rotorwelle (1) ausgeht, der die Rotorwelle (1) wenigstens teilweise durchsetzt.
- Rotor nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß als Kühlmedlum vorzugsweise Kühlluft vorgesehen ist.
- Rotor nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, daß der Hohlraum (5) von den Enden der Rotorwelle (1) beabstandet ist. - Rotor nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Durchführungskanal (9) radial oder schrägradial zur Rotorwelle (1) angeordnet ist.
- Rotor nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß der Fuß (7) in einer Umfangsnut (8) innerhalb der Rotorwelle (1) sitzt, die radial unterhalb des eingesetzten Fußes (7) einen Hohlkanal (1 0) vorsieht, der mit dem Durchführungskanal (9) verbunden ist.
- Rotor nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß der Fuß (7) in einer Axialnut, die axial oder schrägaxial an der Oberfläche der Rotorwelle verläuft, innerhalb der Rotorwelle (1) sitzt, die radial unterhalb des eingesetzten Fußes (7) einen Hohlkanal (10) vorsieht, der mit dem Durchführungskanal (9) verbunden ist.
- Rotor nach Anspruch 6 oder 7,
dadurch gekennzeichnet, daß die Umfangsnut und/oder Axialnut sowie der Fuß Zacken für eine gegenseitige Befestigung aufweisen. - Rotor nach einem der Ansprüche 1 bis 6, 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 9,
dadurch gekennzeichnet, daß ein Durchführungskanal eine Öffnung (11, 11') zum Hohlraum (5) aufweist, deren Offnungsradius jeweils derart bemessen ist, daß die Offnungen zweier unmittelbar benachbarter Durchführungskanäle unterschiedliche Offnungsradien besitzen. - Rotor nach Anspruch 10,
dadurch gekennzeichnet, daß die Offnungen entweder einen großen (R) oder einen kleinen (r) Oeffnungsradius aufweisen. - Rotor nach Anspruch 9,
dadurch gekennzeichnet, daß die Öffnung (11, 11') eines Durchführungskanals (9) zwei unterschiedlich groß ausgebildete Krümmungsradien (R, r) derart aufweist, daß zwei Offnungsbereiche einer Öffnung, die der jeweils unmittelbar benachbarten Oeffnung nächstliegend sind, einen unterschiedlichen Krümmungsradius vorsehen. - Rotor nach Anspruch 12,
dadurch gekennzeichnet, daß die Oeffnungsbereiche (11, 11') zweier unmittelbar benachbarter Offnungen einen übereinstimmenden Krümmungsradius aufweisen. - Rotor nach einem der Ansprüche 6 bis 13, 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 14,
dadurch gekennzeichnet, daß eine geradzahlige Anzahl radialer und/oder schrägradialer Durchgangskanäle (9) in einen Umfangskanal (10') mündet. - Rotor nach einem der Ansprüche 1 bis 15, dadurch gekennzeichnet, daß die Strömungsmaschine eine Turbine, eine Verdichterstufe einer Gasturbine oder einer Dampfturbine ist.
- Rotor nach einem der Ansprüche 1 bis 1 6, dadurch gekennzeichnet, daß sich der Rotor relativ zu einem, in dem Hohlraum (5) enthaltenen Medium bewegt.
- Rotor nach einem der Ansprüche 1 bis 17, 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 18,
dadurch gekennzeichnet, daß das Teil ein Wärmesegment oder ein Hitzeschild ist. - Rotor nach einem der Ansprüche 1 bis 19,
dadurch gekennzeichnet, daß das Kühlsystem (4) Kühlkanäle aufweist, die in der Rotorwelle verlaufen und mit Kühlluft versorgbar sind. - Rotor nach einem der Ansprüche 1 bis 20, dadurch gekennzeichnet, daß die Kühlkanäle (4a) und (4b) des Kühlsystems (4) dem Kühlniedium 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 21, dadurch gekennzeichnet, daß der Rückführkanal (4b), der das erwärmte Kühlmedium aus dem Hohlraum (5) abführt, am innersten Radius des Hohlraums mündet.
- Rotor nach einem der Ansprüche 1 bis 22,
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 23,
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 true EP0926311A1 (de) | 1999-06-30 |
EP0926311B1 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) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1785587A1 (de) | 2005-11-11 | 2007-05-16 | Siemens Aktiengesellschaft | Innengekühlter Rotor einer Strömungsmaschine |
EP2837769A1 (de) * | 2013-08-13 | 2015-02-18 | Alstom Technology Ltd | Rotorwelle für eine Turbomaschine |
EP3061909A1 (de) * | 2015-02-26 | 2016-08-31 | General Electric Technology GmbH | Rotorwelle mit Kühlbohrungseinlässen |
US10113432B2 (en) | 2014-03-19 | 2018-10-30 | Ansaldo Energia Switzerland AG | Rotor shaft with cooling bore inlets |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
Citations (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 |
DE959868C (de) * | 1953-07-17 | 1957-03-14 | Schilling Estate Company | Laufradanordnung fuer Verpuffungsbrennkraftturbinen hoher Drehzahl |
GB810459A (en) * | 1955-06-14 | 1959-03-18 | Gen Electric | Improved turbomachine rotor with air-cooled blading |
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 |
FR2083846A5 (en) * | 1970-03-14 | 1971-12-17 | Motoren Turbinen Union | Gas turbine rotors and blades assembled by electron bombardment - welding - with efficient assembly cooling means |
EP0037897A1 (de) * | 1980-04-15 | 1981-10-21 | M.A.N. MASCHINENFABRIK AUGSBURG-NÜRNBERG Aktiengesellschaft | Einrichtung zur Kühlung des Inneren einer Gasturbine |
EP0122872A1 (de) * | 1983-03-18 | 1984-10-24 | Kraftwerk Union Aktiengesellschaft | MD-Dampfturbine in einflutiger Bauweise für eine Hochtemperaturdampfturbinenanlage mit Zwischenüb erhitzung |
DE4324034A1 (de) * | 1993-07-17 | 1995-01-19 | Abb Management Ag | Gasturbine mit gekühltem Rotor |
DE19617539A1 (de) * | 1996-05-02 | 1997-11-13 | Asea Brown Boveri | 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
Patent Citations (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 |
DE959868C (de) * | 1953-07-17 | 1957-03-14 | Schilling Estate Company | Laufradanordnung fuer Verpuffungsbrennkraftturbinen hoher Drehzahl |
GB810459A (en) * | 1955-06-14 | 1959-03-18 | Gen Electric | Improved turbomachine rotor with air-cooled blading |
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 |
FR2083846A5 (en) * | 1970-03-14 | 1971-12-17 | Motoren Turbinen Union | Gas turbine rotors and blades assembled by electron bombardment - welding - with efficient assembly cooling means |
EP0037897A1 (de) * | 1980-04-15 | 1981-10-21 | M.A.N. MASCHINENFABRIK AUGSBURG-NÜRNBERG Aktiengesellschaft | Einrichtung zur Kühlung des Inneren einer Gasturbine |
EP0122872A1 (de) * | 1983-03-18 | 1984-10-24 | Kraftwerk Union Aktiengesellschaft | MD-Dampfturbine in einflutiger Bauweise für eine Hochtemperaturdampfturbinenanlage mit Zwischenüb erhitzung |
DE4324034A1 (de) * | 1993-07-17 | 1995-01-19 | Abb Management Ag | Gasturbine mit gekühltem Rotor |
DE19617539A1 (de) * | 1996-05-02 | 1997-11-13 | Asea Brown Boveri | Rotor für eine thermische Turbomaschine |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1785587A1 (de) | 2005-11-11 | 2007-05-16 | Siemens Aktiengesellschaft | Innengekühlter Rotor einer Strömungsmaschine |
EP2837769A1 (de) * | 2013-08-13 | 2015-02-18 | Alstom Technology Ltd | Rotorwelle für eine Turbomaschine |
US11105205B2 (en) | 2013-08-13 | 2021-08-31 | Ansaldo Energia Switzerland AG | Rotor shaft for a turbomachine |
US10113432B2 (en) | 2014-03-19 | 2018-10-30 | Ansaldo Energia Switzerland AG | Rotor shaft with cooling bore inlets |
EP3061909A1 (de) * | 2015-02-26 | 2016-08-31 | General Electric Technology GmbH | Rotorwelle mit Kühlbohrungseinlässen |
Also Published As
Publication number | Publication date |
---|---|
DE59710425D1 (de) | 2003-08-14 |
JP4372250B2 (ja) | 2009-11-25 |
JPH11247603A (ja) | 1999-09-14 |
EP0926311B1 (de) | 2003-07-09 |
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