EP1153219B1 - Diffusor ohne pulsation der stoss-grenzschicht und verfahren zum unterdrücken der stoss-grenzschicht-pulsation von diffusoren - Google Patents
Diffusor ohne pulsation der stoss-grenzschicht und verfahren zum unterdrücken der stoss-grenzschicht-pulsation von diffusoren Download PDFInfo
- Publication number
- EP1153219B1 EP1153219B1 EP00907578A EP00907578A EP1153219B1 EP 1153219 B1 EP1153219 B1 EP 1153219B1 EP 00907578 A EP00907578 A EP 00907578A EP 00907578 A EP00907578 A EP 00907578A EP 1153219 B1 EP1153219 B1 EP 1153219B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- diffuser
- fluid
- turbine
- section
- wall
- 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
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/30—Exhaust heads, chambers, or the like
-
- 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
- F01D25/04—Antivibration arrangements
-
- 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
- F05D2250/00—Geometry
- F05D2250/10—Two-dimensional
- F05D2250/19—Two-dimensional machined; miscellaneous
- F05D2250/191—Two-dimensional machined; miscellaneous perforated
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S415/00—Rotary kinetic fluid motors or pumps
- Y10S415/914—Device to control boundary layer
Definitions
- the invention relates to a diffuser for delaying a Fluids with at least one wall forming a channel an inlet cross-section and an outlet cross-section, the flow cross-section of the channel at Outlet cross-section is larger than the inlet cross-section.
- Francis turbines produced by a Liquid flow through, a suction pipe connected to the above conversion from speed to To achieve pressure energy and thus the performance of the turbine to increase. Even with gas turbines and others with high Apparatus striving for velocity, by mounting a diffuser at least part of the Recover flow energy of the fluid.
- a fundamental problem with diffusers of all kinds is that due to the delayed flow separation effects between Flow and the wall of the diffuser can occur.
- This Detachment effects in any case reduce the free one Cross section of the diffuser and thus increase its effect at least partially.
- These vibrations are high Dimensions undesirable as they have an additional mechanical Represent the load on the components affected by them and thus operational reliability and service life of these components can significantly reduce.
- baffles By installing baffles in the channel of the diffuser, For example, an attempt was made to separate the flow from to prevent the convex curved wall of the diffuser. A reduction in the pulsation can thus be achieved. However, the efficiency of the diffuser deteriorates through the built-in baffles throughout Operating time worth mentioning.
- this object is achieved by a diffuser according to the characterizing part of claim 1.
- Pumping the energizing fluid into the channel can always when pulsations occur, the fluid targeted energy are supplied so that the pulsation is suppressed and Damage to the turbine blades of an upstream one Turbine or the diffuser can be prevented.
- the appearance Pulsations can be caused by the transient measurement of the pressure of the fluid and the comparison of the amplitudes of the Pressure fluctuations within a predetermined Frequency range continuously monitored during operation become. If the openings in the areas of the wall in which a pulsation of the shock boundary layer between fluid and Are arranged, the weakening remains Wall of the diffuser through the openings low. Moreover can by pumping the energizing fluid into it Target the pulsation of the shock boundary layer are influenced or suppressed.
- the control unit determines the amplitudes and frequencies of the Pressure transducers measured and triggers the promotion of the Energizing fluids in the diffuser when the Amplitudes within a predetermined frequency range Exceed threshold. This ensures that whenever pulsations occur energizing fluid in the Is promoted diffuser and on the other hand the promotion of the Energizing fluid is absent when there are no pulsations be measured. This makes the efficiency of the Diffuser according to the invention at the times when no pulsations occur, in no way impaired and it only takes place during the comparatively short Operating times at which a pulsation occurs are very there is little reduction in diffuser efficiency.
- the opening or the openings are circular or elongated so that the openings are easy to manufacture and have a low notch effect.
- the Channel has an annular cross section, so that too Diffusers with an inner shell and a convex curved Outer shell in all operating points safely and with good Efficiency can be operated.
- the fluid enters axial direction in the diffuser and / or points in Entry cross-section a swirl and / or the fluid occurs in the radial direction from the diffuser, so that the installation of a diffuser according to the invention between a steam turbine and a condenser with different inflow and Outflow conditions is easily possible.
- the diffuser is rotationally symmetrical.
- Energizing fluid same or similar consistency as that Has fluid, so that, for example, by branching off a Partial steam flow in the medium or low pressure part of the upstream steam turbine inexpensively and without equipment energizing fluid available stands, whose parameters (pressure, temperature, mass flow) exactly can be tailored to the application.
- energizing fluid can be used.
- the Energizing fluid is compressed air, so that without any intervention in the turbine or another, the diffuser according to the invention upstream apparatus the suppression of pulsations can be done.
- a Turbine with a housing, with an impeller and with one Diffuser, with a fluid flowing through the housing, where the fluid drives the impeller and where the diffuser, seen in the direction of flow of the fluid, behind the impeller is arranged, characterized in that the diffuser Diffuser according to one of the preceding claims.
- Diffuser also used in a turbine according to the invention.
- the turbine a steam turbine, a gas turbine or a Francis turbine is, so regardless of the different fluids, with where the turbines are operated, a pulsation in Diffuser of the steam or gas turbine or in the intake manifold Francis turbine is omitted.
- This method according to the invention makes it possible for whenever an operating point is approached in the Pulsations occur, these are measured, recognized and by Pumping energizing fluid in the diffuser suppressed become. So u. a. also existing diffusers, where pulsations occur, monitored and promoted of energizing fluid in the diffuser the pulsations be prevented.
- Fig. 1 is a low pressure (LP) steam turbine 1 with a horizontally extending shaft 3 shown in longitudinal section. Via an inflow line 5, the arrow 7 indicated in the following referred to as fluid steam in the LP steam trough directed.
- a nozzle 9 is located in the turbine available, which directs the fluid to an impeller 11. After the fluid along arrows 12 through several Guide vane rows 9 and the impeller 11 with several Row of blades has flowed while doing work on the shaft 3, it reaches diffusers 13.
- Diffusers 13 each have a convexly curved outer shell 15 and a concave curved inner shell 16. The fluid passes through one Diffuser inlet 17 enters the diffuser 13 and passes through a diffuser outlet 18 from this. To the diffusers 13 close an evaporator housing 19 and only a hinted Capacitor 21 on. All figures are the same Components or designations with the same reference symbols Mistake.
- Fig. 2 is an impeller 11 with a diffuser 13 in Partial section shown.
- the outer shell 15 and the inner shell 16 form a channel 30 through which Fluid flows.
- the main mass flow 31 of the fluid passes through the impeller 11 into the diffuser 13. Through the gap 33 between the impeller 11 and the outer shell 15 of the diffuser 13 arrives Gap mass flow 35 in the diffuser.
- the Flow velocity in the gap 33 is higher than that of the Main mass flow 31, because the gap mass flow 35 does not pass through the impeller 11 is braked. After the last one There is an additional row of blades on shaft 3 Acceleration of the gap mass flow 35, which is in comparable form also plays in a Laval nozzle.
- the outflow of the fluid from through the impeller 11 indicated turbine in the diffuser 13 will to a large extent through the interaction of the main mass flow 31 and the Gap mass flow 35 influenced.
- the energizing effect that from the gap mass flow 35 onto the flow boundary layer the outer shell of the diffuser is exercised, especially important.
- the energization of the boundary layer by the Gap mass flow 35 is the cause of the shift of Detachment area on the outer shell 15 in the direction of Diffuser outlet 18 and the thus induced reduction in Blocking effect due to the separation of the boundary layer arises to look at.
- the Blocking effect is greatest.
- Fig. 2 are the result of the axi-radial deflection Flow conditions in the course of the diffuser 13 in one two-dimensional representation shown schematically.
- the Gap mass flow 35 arrives in that shown in FIG. 2 Operating state with supersonic speed (Ma> 1) in the Diffuser 13, with the main mass flow 31 Subsonic speed (Ma ⁇ 1) into the diffuser 13 arrives.
- the boundary between these two areas is through a sound line 39 is shown.
- a line 41 is the Location of the shock wave is shown.
- a detachment area 43 shown within the flow of the fluid from the outer shell 15 has replaced.
- the extent of the pulsation Efficiency losses and the harmful effects of pulsation on the blades of the LP steam turbine 1 and the diffuser 13 can according to the invention through one or more openings 45 can be prevented in the diffuser 13.
- Via supply lines 46 can be an energizing fluid, not shown in FIG are conveyed through the openings 45 into the diffuser.
- the pulsations can be controlled by means of a transient measuring pressure transducer 47 are detected.
- Fig. 4 are the results of Amplitudes by means of transient pressure transducers DA1 and DA2 measured for a constant flow state were shown. The recorded different The curve shape of DA1 and DA2 is due to the fact that different positions was measured. From Fig. 4 results that the measured with a first pressure transducer DA1 Pulsation amplitudes in the range between 150 ° and 210 ° the most biggest are. The one with a second pressure transducer DA2 measured values shown in dashed lines overall somewhat lower, but also show a pronounced Maximum in the range between 190 ° and 215 °.
- FIG. 4 shows that the pulsations in the case of FIG. 3 shown outflow of the total mass flow over the Scope are different.
- openings 45 and / or pressure transducers in the area of large To lay amplitudes so that on the one hand the pulsations easily and become clearly recognizable and on the other hand through the Pumping energizing fluid into the diffuser suppression of the pulsations achieved as effectively as possible becomes.
- FIG. 7 is another operating state of the turbine or Diffuser shown in which without conveying Energizing fluid in the diffuser has an amplitude of 15.8 mbar was measured at 417 Hz.
- Fig. 8 the measured pressure curve is the same Operating state of the turbine and the diffuser with conveying Energizing fluid shown in the diffuser. In this Fall has dropped to 4.1 mbar at 425 Hz decreased, which is also called complete suppression of the Pulsation can be seen.
- the suppression of the pulsation can be done by using a diffuser according to the invention or by using the method are completely suppressed. It is irrelevant whether the fluid is steam, flue gas, air or is, for example, water.
- the inventive method is for compressible and all kinds of incompressible fluids can be used.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Hydraulic Turbines (AREA)
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
- Percussion Or Vibration Massage (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
- Pipe Accessories (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Description
- das nutzbare Druck- bzw. Enthalpiegefälle der Turbine erhöht wird;
- ein Teil der kinetischen Energie wird in Druckenergie umgewandelt wird;
- das strömende Medium verzögert wird und
- die Strömungsverluste am Diffusoraustritt zu den Kondensatorbündeln hin verkleinert werden;
- der Druck des Fluids in dem Diffusor instationär gemessen wird,
- die Amplituden und Frequenzen der gemessenen Drücke ausgewertet werden und
- Energetisierungsfluid in den Diffusor in einen Bereich der Wandung (15, 16) in dem eine Ablösung des Fluids von der Wandung (15, 16) auftreten kann, gefördert wird, wenn die Amplituden (51) innerhalb eines vorgegebenen Frequenzbereichs einen Schwellwert überschreiten.
- Fig. 1:
- einen Längsschnitt durch eine Niederdruck-Dampfturbine;
- Fig. 2:
- einen Teilschnitt durch ein Laufrad einer Dampfturbine und einen daran anschließenden Diffusor;
- Fig. 3:
- eine teilweise freigeschnittene perspektivische Darstellung eines Laufrads einer Dampfturbine und eines Diffusors;
- Fig. 4:
- die Amplitude der Pulsation über den Umfang des Diffusoraustritts;
- Fig. 5:
- gemessene Pulsationsamplituden eines Diffusors nach dem Stand der Technik aufgetragen über der Frequenz;
- Fig. 6:
- gemessene Pulsationsamplituden eines erfindungsgemäßen Diffusors aufgetragen über der Frequenz;
- Fig. 7:
- gemessene Pulsationsamplituden aufgetragen über der Frequenz eines zweiten Betriebspunkts eines Diffusors nach dem Stand der Technik; und
- Fig. 8:
- gemessene Pulsationsamplituden aufgetragen über der Frequenz eines erfindungsgemäßen Diffusors im zweiten Betriebspunkt.
Claims (14)
- Diffusor zur Verzögerung eines Fluids, mit mindestens einer einen Kanal (30) bildenden Wandung (15), mit einem Eintrittsquerschnitt (17) und einem Austrittsquerschnitt (18), wobei der Strömungsquerschnitt des Kanals (30) am Austrittsquerschnitt (18) größer als am Eintrittsquerschnitt (17) ist, dadurch gekennzeichnet, dass die Wandung (15) mindestens eine Öffnung (45) aufweist, dass die mindestens eine öffnung (45) an einem Bereich der Wandung (15, 16) angeordnet ist, in dem eine Ablösung des Fluids von der Wandung (15, 16) auftreten kann, dass durch die Öffnung (45) ein Energetisierungsfluid in den Kanal (30) förderbar ist, dass mindestens ein Druckaufnehmer (47) an dem Diffusor (13) vorhanden ist, dass der Druckaufnehmer (47) den Druck des Fluids instationär misst, dass ein Steuergerät vorhanden ist, dass das Steuergerät Amplituden (51) und Frequenzen (55) der vom Druckaufnehmer (47) gemessenen Drücke ermittelt, und dass das Steuergerät die Förderung des Energetisiserungsfluids in den Diffusor (13) auslöst, wenn die Amplituden (51) innerhalb eines vorgegebenen Frequenzbereichs einen Schwellwert überschreiten.
- Diffusor nach Anspruch 1, dadurch gekennzeichnet, dass die Öffnung (45) oder die Öffnungen (45) kreisrund oder als Langloch ausgeführt sind.
- Diffusor nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Öffnung (45) in mehreren Bereichen der Wandung (15, 16) angeordnet sind.
- Diffusor nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Kanal (30) einen ringförmigen Querschnitt aufweist.
- Diffusor nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Fluid in axialer Richtung in den Diffusor (13) eintritt.
- Diffusor nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Fluid im Eintrittsquerschnitt (17) einen Drall aufweist.
- Diffusor nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Fluid in radialer Richtung aus dem Diffusor (13) austritt.
- Diffusor nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Diffusor (13) rotationssymmetrisch ist.
- Diffusor nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Energetisiserungsfluid eine gleiche oder ähnliche Konsistenz wie das Fluid aufweist.
- Turbine, mit einem Gehäuse, mit einem Laufrad (11) und mit Diffusor (13), wobei das Gehäuse von einem Fluid durchströmt wird, wobei das Fluid das Laufrad (11) antreibt, und wobei der Diffusor (13), in Strömungsrichtung des Fluids gesehen, hinter dem Laufrad (11) angeordnet ist, dadurch gekennzeichnet, dass Diffusor (13) ein Diffusor nach einem der vorhergehenden Ansprüche ist.
- Turbine nach Anspruch 10, dadurch gekennzeichnet, dass die Turbine eine ND-Dampfturbine ist.
- Turbine nach Anspruch 10, dadurch gekennzeichnet, dass die Turbine eine Gasturbine ist.
- Turbine nach Anspruch 10, dadurch gekennzeichnet, dass die Turbine eine Wasserturbine, insbesondere eine Francis-Turbine, ist.
- Verfahren zur Verhinderung von Stoß-Grenzschicht-Pulsationen in einem Diffusor (13), gekennzeichnet durch folgende Verfahrensschritte:Bereitstellen eines Diffusors (13) mit mindestens einer einen kanal (30) bildenden Wandung (15),Instationäres Messen des Druckes des Fluids in dem Diffusor (13),Auswerten der Amplituden (51) und Frequenzen (55) der gemessenen Drücke,Fördern von Energetisierungsfluid in einen Bereich der Wandung (15, 16) in dem eine Ablösung des Fluids von der Wandung (15, 16) auftreten kann, wenn die Amplituden (51) innerhalb eines vorgegebenen Frequenzbereichs einen Schwellwert überschreiten.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19905994 | 1999-02-15 | ||
DE19905994A DE19905994A1 (de) | 1999-02-15 | 1999-02-15 | Vorrichtung und Verfahren zur Aufhebung von Stoß-Grenzschicht-Oszillationen bei kreisringförmigen Diffusoren (axial-radial) an Dampfturbinen |
PCT/EP2000/001300 WO2000049297A1 (de) | 1999-02-15 | 2000-02-15 | Diffusor ohne pulsation der stoss-grenzschicht und verfahren zum unterdrücken der stoss-grenzschicht-pulsation von diffusoren |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1153219A1 EP1153219A1 (de) | 2001-11-14 |
EP1153219B1 true EP1153219B1 (de) | 2003-08-20 |
Family
ID=7897371
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00907578A Expired - Lifetime EP1153219B1 (de) | 1999-02-15 | 2000-02-15 | Diffusor ohne pulsation der stoss-grenzschicht und verfahren zum unterdrücken der stoss-grenzschicht-pulsation von diffusoren |
Country Status (6)
Country | Link |
---|---|
US (1) | US6602046B2 (de) |
EP (1) | EP1153219B1 (de) |
AT (1) | ATE247783T1 (de) |
AU (1) | AU2912100A (de) |
DE (2) | DE19905994A1 (de) |
WO (1) | WO2000049297A1 (de) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2412941A1 (de) * | 2010-07-26 | 2012-02-01 | Siemens Aktiengesellschaft | Abgasdiffusor für eine Gasturbine und Verfahren dafür |
US8591184B2 (en) | 2010-08-20 | 2013-11-26 | General Electric Company | Hub flowpath contour |
US8628297B2 (en) * | 2010-08-20 | 2014-01-14 | General Electric Company | Tip flowpath contour |
US20130022444A1 (en) * | 2011-07-19 | 2013-01-24 | Sudhakar Neeli | Low pressure turbine exhaust diffuser with turbulators |
US20130243564A1 (en) * | 2012-03-14 | 2013-09-19 | Prakash Bavanjibhai Dalsania | Exhaust diffuser for turbine |
EP2677123B2 (de) | 2012-06-18 | 2018-04-25 | General Electric Technology GmbH | Diffusor für Turbomaschinen |
US9109467B2 (en) * | 2012-07-05 | 2015-08-18 | General Electric Company | Exhaust system for use with a turbine and method of assembling same |
DE102013204006A1 (de) * | 2013-03-08 | 2014-09-11 | Siemens Aktiengesellschaft | Diffusoranordnung für ein Abdampfgehäuse einer Dampfturbine, sowie damit ausgestattete Dampfturbine |
JP6189239B2 (ja) * | 2014-03-24 | 2017-08-30 | 三菱日立パワーシステムズ株式会社 | 蒸気タービン |
US20230079436A1 (en) * | 2021-09-10 | 2023-03-16 | Haier Us Appliance Solutions, Inc. | Systems and methods for performing a sous-vide cooking cycle in a dishwasher appliance |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3123285A (en) * | 1964-03-03 | Diffuser with boundary layer control | ||
FR770326A (fr) * | 1933-06-07 | 1934-09-12 | Procédé de transformation de l'énergie calorifique en énergie cinétique ou potentielle | |
DE1108525B (de) * | 1956-06-11 | 1961-06-08 | Voith Gmbh J M | Diffusor mit einer Einrichtung zum Anblasen der Grenzschicht |
FR1318602A (fr) * | 1959-08-01 | 1963-02-22 | Procédé pour influencer la circulation d'un fluide, notamment dans des pompes centrifuges, et dispositif pour la réalisation de ce procédé | |
US3149470A (en) * | 1962-08-29 | 1964-09-22 | Gen Electric | Low pressure turbine exhaust hood |
GB1386281A (en) * | 1972-03-06 | 1975-03-05 | Luft U Kaeltetechnik Veb K | Boundary layer control for turbo machines |
US3945760A (en) * | 1974-10-29 | 1976-03-23 | Westinghouse Electric Corporation | Outer cylinder for a low pressure turbine apparatus |
US4029430A (en) * | 1975-09-02 | 1977-06-14 | Fonda Bonardi Giusto | Short subsonic diffuser for large pressure ratios |
IL48928A (en) * | 1976-01-29 | 1978-04-30 | Univ Ben Gurion | Wind-driven energy generating device |
US4159188A (en) * | 1977-07-11 | 1979-06-26 | Atencio Francisco J G | Dam with reversible hydroelectric station |
FR2401311A1 (fr) * | 1977-08-25 | 1979-03-23 | Europ Turb Vapeur | Dispositif d'echappement pour turbine axiale a fluide condensable |
US5603605A (en) * | 1996-04-01 | 1997-02-18 | Fonda-Bonardi; G. | Diffuser |
-
1999
- 1999-02-15 DE DE19905994A patent/DE19905994A1/de not_active Ceased
-
2000
- 2000-02-15 WO PCT/EP2000/001300 patent/WO2000049297A1/de active IP Right Grant
- 2000-02-15 AU AU29121/00A patent/AU2912100A/en not_active Abandoned
- 2000-02-15 AT AT00907578T patent/ATE247783T1/de not_active IP Right Cessation
- 2000-02-15 EP EP00907578A patent/EP1153219B1/de not_active Expired - Lifetime
- 2000-02-15 DE DE50003355T patent/DE50003355D1/de not_active Expired - Fee Related
-
2001
- 2001-08-15 US US09/930,404 patent/US6602046B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE50003355D1 (de) | 2003-09-25 |
EP1153219A1 (de) | 2001-11-14 |
US6602046B2 (en) | 2003-08-05 |
DE19905994A1 (de) | 2000-08-24 |
US20020018714A1 (en) | 2002-02-14 |
AU2912100A (en) | 2000-09-04 |
WO2000049297B1 (de) | 2001-05-25 |
WO2000049297A1 (de) | 2000-08-24 |
ATE247783T1 (de) | 2003-09-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0690206B1 (de) | Diffusor für Turbomaschine | |
DE69601283T2 (de) | Strömungsleitenden Vorrichtung für ein Gasturbinentriebwerk | |
DE60314446T2 (de) | Verfahren zur reinigung einer stationären gasturbineneinheit im betrieb | |
DE69504071T2 (de) | Turbomaschine | |
EP0903468A1 (de) | Deckband für axialdurchströmte Turbine | |
DE102007007090A1 (de) | Gasturbine mit Kühlluft-Übertragungssystem | |
DE1220204B (de) | Axialturbomaschine, insbesondere Axialgasturbine | |
DE102015219556A1 (de) | Diffusor für Radialverdichter, Radialverdichter und Turbomaschine mit Radialverdichter | |
EP1153219B1 (de) | Diffusor ohne pulsation der stoss-grenzschicht und verfahren zum unterdrücken der stoss-grenzschicht-pulsation von diffusoren | |
EP0397768B1 (de) | Turbine eines abgasturboladers | |
DE102011053405A1 (de) | Turbinenabgasraum | |
EP2773854B1 (de) | Strömungsmaschine | |
DE102009059318A1 (de) | Verfahren, Systeme und/oder Vorrichtungen im Zusammenhang mit Dampfturbinenauslassdiffusoren | |
DE112013005501T5 (de) | Abgasdiffusor für eine Gasturbine | |
DE102017125051A1 (de) | Strömungsmaschine | |
EP1632648A2 (de) | Strömungsstruktur für eine Gasturbine | |
CH701927B1 (de) | Statoranordnung, Kompressor und Gasturbinenmotor. | |
CH703654A2 (de) | Einrichtung mit einer Turbine und einem Diffusor. | |
CH703666A2 (de) | Einrichtung mit einer Turbine, einem Diffusor und einem Nabenströmungspfadprofil. | |
DE19850185B4 (de) | Kombinierte Steuer/Sperrventilanordnung für Dampfkraftwerk | |
WO2013107489A1 (de) | Verfahren und vorrichtung zur stabilisierung eines verdichterstroms | |
WO2004055362A1 (de) | Verfahren und vorrichtung zur reduktion von druckschwankungen im saugrohr einer wasser-turbine oder -pumpe oder -pumpturbine | |
WO2019034740A1 (de) | Diffusor für einen radialverdichter | |
DE102018206601A1 (de) | Schaufel, Schaufelsegment und Baugruppe für eine Turbomaschine und Turbomaschine | |
EP0108298A1 (de) | Dampfturbinenkondensator mit mindestens einer in den Dampfdom einmündenden Umleitdampfeinführung |
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 |
|
17P | Request for examination filed |
Effective date: 20010913 |
|
AK | Designated contracting states |
Kind code of ref document: A1 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 |
|
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): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IE 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: 20030820 Ref country code: FR 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: 20030820 Ref country code: NL 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: 20030820 Ref country code: GB 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: 20030820 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: 20030820 Ref country code: CY 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: 20030820 Ref country code: FI 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: 20030820 |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: GERMAN |
|
REF | Corresponds to: |
Ref document number: 50003355 Country of ref document: DE Date of ref document: 20030925 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: 20031120 Ref country code: GR 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: 20031120 Ref country code: DK 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: 20031120 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: NV Representative=s name: MICHELI & CIE INGENIEURS-CONSEILS Ref country code: CH Ref legal event code: PUE Owner name: MAN TURBOMASCHINEN AG Free format text: UNIVERSITAET STUTTGART#KEPLERSTRASSE 7#70174 STUTTGART (DE) -TRANSFER TO- MAN TURBOMASCHINEN AG#STEINBRINKSTRASSE 1#46145 OBERHAUSEN (DE) |
|
RAP2 | Party data changed (patent owner data changed or rights of a patent transferred) |
Owner name: MAN TURBOMASCHINEN AG Owner name: UNIVERSITAET STUTTGART |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PT 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: 20040120 |
|
LTIE | Lt: invalidation of european patent or patent extension |
Effective date: 20030820 |
|
NLV1 | Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act | ||
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040215 Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040215 |
|
GBV | Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed] |
Effective date: 20030820 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040228 Ref country code: MC Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040228 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FD4D |
|
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: 20040524 |
|
BERE | Be: lapsed |
Owner name: *UNIVERSITAT STUTTGART Effective date: 20040228 |
|
EN | Fr: translation not filed | ||
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 20050216 Year of fee payment: 6 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20060228 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20060228 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20090223 Year of fee payment: 10 Ref country code: DE Payment date: 20090420 Year of fee payment: 10 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20100901 |
|
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 NON-PAYMENT OF DUE FEES Effective date: 20100215 |