EP3685021A1 - Kraftwerk mit kühlsystem, verfahren zum betreiben eines solchen kraftwerks, verfahren zur modifikation eines kraftwerks - Google Patents
Kraftwerk mit kühlsystem, verfahren zum betreiben eines solchen kraftwerks, verfahren zur modifikation eines kraftwerksInfo
- Publication number
- EP3685021A1 EP3685021A1 EP18793595.2A EP18793595A EP3685021A1 EP 3685021 A1 EP3685021 A1 EP 3685021A1 EP 18793595 A EP18793595 A EP 18793595A EP 3685021 A1 EP3685021 A1 EP 3685021A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- generator
- power plant
- cooling water
- cooled
- heat exchanger
- 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.)
- Withdrawn
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 56
- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000000498 cooling water Substances 0.000 claims abstract description 101
- 239000003507 refrigerant Substances 0.000 claims description 6
- LVGUZGTVOIAKKC-UHFFFAOYSA-N 1,1,1,2-tetrafluoroethane Chemical compound FCC(F)(F)F LVGUZGTVOIAKKC-UHFFFAOYSA-N 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000005057 refrigeration Methods 0.000 claims description 2
- 230000008646 thermal stress Effects 0.000 claims description 2
- 239000002826 coolant Substances 0.000 claims 1
- 239000000112 cooling gas Substances 0.000 abstract description 6
- 239000007789 gas Substances 0.000 description 14
- 239000003921 oil Substances 0.000 description 4
- 230000001419 dependent effect Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 206010053567 Coagulopathies Diseases 0.000 description 1
- 230000035602 clotting Effects 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000003455 independent Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K27/00—Plants for converting heat or fluid energy into mechanical energy, not otherwise provided for
- F01K27/02—Plants modified to use their waste heat, other than that of exhaust, e.g. engine-friction heat
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
Definitions
- Power plant with cooling system method for operating such a power plant, method for modifying a
- the invention relates to a power plant with at least one generator which is cooled with a ge of a generator heat exchanger cooled cooling gas, and a closed cooling water system to which the generator heat exchanger and other heat exchangers of the power plant are connected.
- Such power plants are known in the prior art in under different versions. They can be designed as a gas turbine, as a steam turbine or as a gas and steam turbine power plant.
- a variety of Kraftwerkskom components requires cooling, on the one hand to dissipate the heat loss incurred and on the other to increase the performance of the power plant.
- the generators of a power plant are usually cooled with cooling gas cooled by generator heat exchangers.
- the gene ratortownleyer are connected to a closed cooling water system of the power plant, over which also other politicianstau shear are supplied with cooling water, for example, those for lubricating and / or Dichtölkühlung, for cooling of pumps or the like.
- the recooling of the cooling water of the cooling water circuit can be done in various ways, for example by means of fresh water flow cooling, Umlaufküh development using a cooling tower or air-cooled coolers, etc.
- the possible achievable electrical power to the generator is dependent on the cooling of the generator windings pre-given cold gas temperature of the cooling gas, ie thedegastem temperature when entering the generator.
- the lower the cold gas temperature the more mechanical energy can be converted in the Ge generator into electrical energy.
- the cold gas is, as described above, via the generator heat shear, which is cooled by the cooling water system.
- the cold gas temperature of the cooling gas for the genera torkühlung is coupled to the cooling water temperature of the cooling water system.
- the cooling water temperature is in turn dependent on the re-cooling and therefore can not be arbitrarily lowered who the.
- the achievable on the generator electrical power rule limits are set.
- EP 1 529 333 A1 discloses a cooling of a generator, in which the cooling water of the cooling water system of the power plant is additionally cooled down for the generator cooling.
- the object is achieved by a power plant according to claim 1, and method of operation according to claim 16 and a Ver drive for modification of a power plant according to claim 27.
- the present invention provides a power plant of the type mentioned, which is characterized in that a generator heat exchanger is part of a Sakkühlwassernikankanks, which serves exclusively to cool at least one generator, in particular connected to the cooling water system of the power plant and in particular special at least one shut-off valve can optionally be separated from this.
- Another advantage is the presence of a pump and at least one chiller for cooling the cooling water flowing through the Rajkühlwas serniklauf.
- the provision of a separate additional cooling water circuit for the at least one generator which can be decoupled from the cooling water system is advantageous in that via the additional cooling water circuit to the cooling requirements of at least one generator tuned cooling performance can be made available, regardless of the cooling performance the cooling water system over which the other heat exchangers are cooled to cool, for example, lubricating and / or sealing oil, pumps or other components of the power plant.
- the use of at least one chiller for cooling the cooling water flowing through the additional cooling water circuit offers a high flexibility of the availableméleis device, so that these conditions and conditions of operation of the power plant can be easily adapted to changing ambient conditions.
- the refrigerating machine is a compression refrigerating machine and has an evaporator, a compressor, a condenser and a discharge valve that forms a closed circuit through which the refrigerant of the refrigerator is passed.
- the refrigerants of the refrigerator are preferably tetrafluoroethane, which is also sold under the trade name R- 134a is available. With tetrafluoroethane as the refrigerant WUR achieved very good results.
- the condenser of the refrigerator is preferably cooled withchenwas water of the cooling water system, whereby a simple and inexpensive construction of the additional cooling water circuit is achieved.
- the compressor of the chiller is cooled by a connected to the cooling water system connected generator heat exchanger cooled air.
- the present invention provides a method for operating a power plant according to the invention previously described, in which the additional cooling water circuit is disconnected in normal operation of the power plant by the at least one shut-off valve from the cooling water system, so that the Generatorür exchanger exiting cooling water of the additional cooling water circuit run exclusively on the chiller is recooled.
- the generator cooling is done exclusively via the chiller and is thus independent of the cooling water system. Accordingly, an energetically favorable, very powerful and flexible generator cooling is inquirege provides, which makes it possible to umzuwan very high mechanical Leis lines on the generator shaft in electrical energy.
- the limit value is chosen such that that proper cooling of the generator can be ensured solely by the cooling water system.
- the at least one shut-off valve of the additional cooling water circuit is advantageously automatically opened in the event of failure of the refrigerator and the generator heat exchanger connected to the cooling water system 14. In this way, emergency cooling of the generator via the cooling water system is always ensured.
- Figure 1 shows a power plant with a generator, a
- FIG. 2 shows a hybrid system in a power plant in which a generator can also be cooled by a blower.
- FIG. 3 shows a power plant with two generators and one
- FIG. 4 shows a power plant with two generators each having a heat exchanger
- Figure 5 shows that a heat exchanger is used to cool various subcomponents of a generator
- FIG. 6 shows that different subcomponents of a
- Generators are cooled by two heat exchangers.
- the power plant 1 is in this case a gas turbine power plant, which could also be any other type of power plant act.
- it can also be a combined cycle power plant with at least one steam turbine (not shown in detail).
- the steam turbines can hang in the same shaft train of Gasturbi nenrotors 6.
- two steam turbines may be part of the power plant.
- the power plant 1 here preferably comprises a Lucasverdich ter 2, a gas turbine 3, at least one generator 4 and a transformer 5.
- compressed air is combusted in a known manner together with a fuel.
- the combustion gas is supplied to the gas turbine 3 and relaxed therein by driving a gas turbine rotor 6.
- the Gasturbi nenrotor 6 drives the generator 4, which converts theriosener energy into electrical energy.
- this has a closed cooling water system 7, the general my called as Eisenkühlwasserniklauf and of the present only a Hauptzuclasstechnisch 8 and a Main return line 9 are shown.
- heat exchanger 12 To the cooling water system 7 are connected via lines 10 and 11 heat exchanger 12 is closed, are cooled by the example, lubricating oil, sealing oil, pumps and / or other components of the power plant 1.
- a generator heat exchanger 14 connected to the generator via the line 15 generator 4 extracted hot gas is supplied, which then returned via the line 16 as cold gas to the generator 4 becomes.
- the generator heat exchanger 14 forms according to the invention a part of a classickühlwassernikanks 17, which serves exclusively for the cooling of the generator 4 and vorlie ing via shut-off valves 18, 18 ', which are provided at the supplying Lei device 13, optionally connected to the cooling water system 7 and separated from it can.
- the addition of the cooling circuit 17 includes a refrigerator 19, which via a provided with a pump 20 line 21 between the Genera torchipleyer 14 and the shut-off valve 18 with the Wegner-generating line 13 and a three-way valve 22 on pointing line 23 between the Generator heat exchanger 14 and the shut-off valve 18 to the supply line 13 on the one hand and via a line 24 to the line 21 is connected to the other hand.
- the chiller 19 comprises vorlie lowing an evaporator 25, a compressor 26, a condenser 27 and an expansion valve 28 through which the refrigerant is passed through the refrigeration unit 19 via lines 29 in the closed-circuit NEN, which in this case is tetrafluoroethane (R.
- the condenser 27 of the refrigerator 19 is cooled by means of lines 30 supplied cooling water of the cooling water system 7. Further, the compressor 26 of the refrigerator 19 is cooled by a to the cooling water system 7 via lines 31 and the lines 30 is closed heat exchanger 32 cooled air.
- the at least one valve 18, 18 ' is closed and the three-way valve 22 connects the Lines 13 and 23, so that the additional cooling water circuit 17 is completely separated from the cooling water system 7. Accordingly, the cooling of the generator 4 takes place exclusively via the chiller 19. This is to the effect of advantage that the cooling capacity of the generator cooling can be adjusted completely inde pendent of the cooling water system 7. Accordingly, an energetically favorable, very powerful and flexible generator cooling is provided, which makes it possible to convert even very high mechanical power to the Ge neratorwelle in electrical energy.
- the at least one shut-off valve 18, 18 ' is opened and the additional cooling water circuit 17 is
- the generator cooling is no longer on the additional cooling water circuit 17 or the chiller 19 but via the cooling water system 7 takes place.
- Switching from one type of cooling to another can be done using a stored in the corresponding control curve that assigns each generator power a target cooling gas temperature with an associated cooling water temperature at the inlet of the generator heat exchanger 14 and limits, wel chedegastemperaturen at which temperatures of thedewas sers the cooling water system 7 can be achieved.
- a sol cher limit value is exceeded, it is automatically switched from a cooling of the generator 4 by the cooling water system 7 to such by the additional cooling water circuit 17 tet switched. When falling below is switched back accordingly.
- the at least one shut-off valve 18, 18 'of the additional cooling water circuit 17 in the event of failure of the refrigerator 19 opens automatically table and the generator heat exchanger 14 is connected to the cooling water system 7 to provide emergency cooling of the generator 4.
- the Umstel development should preferably be made gradually in order to cause turgradienten in the generator 4 no excessive damage after pulling tempera.
- the three-way valve 22 is provided, which also made a mixed operation made light, which ensures that a permissible Temperaturgradi ent the cooling water at the inlet of the generator heat exchanger 14 is maintained. This can be 1K / minute, just to give an example.
- the power plant 1 according to the invention is characterized by an effective generator cooling with a simple structure.
- FIG. 2 shows a hybrid system for cooling the generator 4.
- the generator 4 can additionally be cooled by a blower or blower system 33 via separate lines 15 ', 16'.
- the blower system 33 can be operated in parallel to the generator heat exchanger 14 or is preferably used only at accordingly lower outdoor temperatures or lower thermal stresses of the generator 4.
- FIG. 3 shows a further schematic arrangement of a power plant 1 with preferably two generators 4 ', 4 ".
- the schematic arrangement of the two generators 4 ', 4' 'be delay one or more gas turbines 2 and / or not shown steam turbines is only schematically.
- the two generators 4', 4'' cools. The cooling is preferably switched in parallel so that separate circuits 15 ', 16' are provided for the second generator 4 ".
- FIG. 4 shows a power plant 1 with two generators 4 ', 4 ".
- the arrangement of the two generators 4 ', 4' ' is only schematically and the number of gas turbines 2 or the presence of not shown steam turbines.
- the second generator 4 '' by a second generator heat exchanger 14 '' cooled, which is also in turn connected to a chiller.
- a chiller This may be the same chiller 19 or a separate chiller 19 '.
- 19 'available for each generator 4 ', 4' 'a separate Genera torumbleleyer 14', 14 '' and a separate heat engine 19, 19 'available. Accordingly, corresponding supply lines 15 'and 16' analogous to the lines 15, 16 kuh development of the first generator 4 'available.
- FIG. 5 shows in more detail that for a generator 4, two supply lines 16, 16 'and two leads 15, 15' are the IN ANY, which serve to cool various sub-components of the generator 4. This can be, for example, oil cooling and / or cooling of the rotor. This cooling of Sectionkom components, of course, applies accordingly for the previous and subsequent figures.
- FIG. 6 shows that for a generator 4, two generator heat exchangers 14, 14 'and also additional lines 15', 16 'are present in order to cool another or several component parts of the generator 4.
- the generator heat exchanger 14 serve to cool the rotor, whereas the second generator heat exchanger 14 ', for example, for cooling the oil in the generator 4 is used.
- the second generator heat exchanger 14 ' is connected via corresponding feed lines 13' to the refrigerator 19.
- a separate chiller 13 ' for the second generator heat exchanger 14'.
- older existing power plants can be upgraded to who, in which a separate cooling as described above for the generator or the generators 4, 4 'additionally and for the first time pa rallel to the cooling water system 7 is installed.
- the others, in particular all other components of the power plant 1 are preferably not cooled by the chiller 19, but only by the cooling water system. 7
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102017220977.1A DE102017220977A1 (de) | 2017-11-23 | 2017-11-23 | Kraftwerk mit Kühlsystem, Verfahren zum Betreiben eines solchen Kraftwerks, Verfahren zur Modifikation eines Kraftwerks |
| PCT/EP2018/078021 WO2019101440A1 (de) | 2017-11-23 | 2018-10-15 | Kraftwerk mit kühlsystem, verfahren zum betreiben eines solchen kraftwerks, verfahren zur modifikation eines kraftwerks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3685021A1 true EP3685021A1 (de) | 2020-07-29 |
Family
ID=64023993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP18793595.2A Withdrawn EP3685021A1 (de) | 2017-11-23 | 2018-10-15 | Kraftwerk mit kühlsystem, verfahren zum betreiben eines solchen kraftwerks, verfahren zur modifikation eines kraftwerks |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US11637480B2 (de) |
| EP (1) | EP3685021A1 (de) |
| DE (1) | DE102017220977A1 (de) |
| WO (1) | WO2019101440A1 (de) |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5431835A (en) * | 1992-02-18 | 1995-07-11 | Idemitsu Kosan Co., Ltd. | Lubricant refrigerant comprising composition containing fluorohydrocarbon |
| US20050172651A1 (en) | 2002-08-16 | 2005-08-11 | Alstom Technology Ltd | Dynamoelectrical generator |
| AU2003246504A1 (en) | 2002-08-16 | 2004-03-03 | Alstom Technology Ltd | Dynamoelectric generator |
| US7716930B2 (en) | 2007-01-29 | 2010-05-18 | General Electric Company | Integrated plant cooling system |
| EP2464920B1 (de) * | 2009-08-10 | 2019-05-22 | Carrier Corporation | Energiesparvorrichtung für ein transportkühlsystem, transportkühleinheit und verfahren dafür |
| US9689281B2 (en) * | 2011-12-22 | 2017-06-27 | Nanjing Tica Air-Conditioning Co., Ltd. | Hermetic motor cooling for high temperature organic Rankine cycle system |
| DE102012203010A1 (de) * | 2012-02-28 | 2013-08-29 | Areva Gmbh | Verfahren zur Reinigung und Konditionierung des Wasser-Dampfkreislaufes eines Kraftwerkes, insbesondere eines Kernkraftwerkes |
| DE102012206296A1 (de) * | 2012-04-17 | 2013-10-17 | Siemens Aktiengesellschaft | Anlage zur Speicherung und Abgabe thermischer Energie und Verfahren zu deren Betrieb |
| DE102012210803A1 (de) * | 2012-06-26 | 2014-01-02 | Energy Intelligence Lab Gmbh | Vorrichtung zum Erzeugen elektrischer Energie mittels eines ORC-Kreislaufs |
| EP2762689B1 (de) * | 2013-02-05 | 2017-06-07 | General Electric Technology GmbH | Dampfkraftanlage mit einer zweiten Niederdruckturbine und einem zusätzlichen Kondensierungssystem und Verfahren zum Betrieb einer solchen Dampfkraftanlage |
| EP2955341A1 (de) * | 2014-06-13 | 2015-12-16 | Siemens Aktiengesellschaft | Verfahren zur Kühlung eines Kraftwerksblocks |
| US20160146516A1 (en) * | 2014-11-23 | 2016-05-26 | Mingsheng Liu | Absorption Cooling Air Compressor System |
| DE102015201072A1 (de) * | 2015-01-22 | 2016-07-28 | Siemens Aktiengesellschaft | Verfahren zum Betreiben eines Turbinenkraftwerk-Kühlsystems sowie Turbinenkraftwerk mit einem Kühlsystem |
-
2017
- 2017-11-23 DE DE102017220977.1A patent/DE102017220977A1/de not_active Withdrawn
-
2018
- 2018-10-15 EP EP18793595.2A patent/EP3685021A1/de not_active Withdrawn
- 2018-10-15 US US16/764,991 patent/US11637480B2/en active Active
- 2018-10-15 WO PCT/EP2018/078021 patent/WO2019101440A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| DE102017220977A1 (de) | 2019-05-23 |
| US11637480B2 (en) | 2023-04-25 |
| US20200321831A1 (en) | 2020-10-08 |
| WO2019101440A1 (de) | 2019-05-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE102007057536B4 (de) | Klimaanlage mit Hybrid-Zapfluft-Betrieb | |
| DE69905077T2 (de) | Anlage zur erdgasverflüssigung | |
| DE69402033T2 (de) | Vollständig integriertes Klima- und Hilfsantriebsaggregat | |
| DE102010036074B4 (de) | System und Verfahren zur Energierückgewinnung unter Benutzung eines organischen Kreisprozesses nach Rankine (ORC) mit Kondensatordruckregelung | |
| DE60123719T2 (de) | Verfahren zur Regelung eines Antriebs mit variabler Drehzahl bei mehrfachen Kühleinheiten | |
| DE69421091T2 (de) | Luftkühlanlage | |
| DE69805795T2 (de) | Luftkreislauf-klimaanlagen-regulierungssystem mit durch dapmpfzyklus unterstützter kondensation | |
| DE10359204B4 (de) | Luftgekühlte Wärmetauschvorrichtung | |
| US6663044B1 (en) | Vapor compression cycle environmental control system | |
| DE102008006259A1 (de) | Integriertes Kraftwerkskühlsystem | |
| CH643648A5 (de) | Verfahren und vorrichtung zum abkuehlen von erdgas. | |
| EP1795725B1 (de) | Gasturbine mit geregelter Luftkühlung | |
| DE102010051976A1 (de) | Klimaanlage für ein Kraftfahrzeug | |
| DE112018003581T5 (de) | Kühlanordnung für ein Hybridfahrzeug mit einer elektrischen Antriebseinheit, einem Verbrennungsmotor und einem Abwärmerückgewinnungssystem | |
| EP1342892B1 (de) | Kreislauf zur Kühlung von Ladeluft und Verfahren zum Betreiben eines derartigen Kreislaufs | |
| EP3163036A1 (de) | Funktionssynergien von thermodynamischen kreisprozessen und wärmequellen | |
| EP3129606A1 (de) | Gasturbinengeneratorkühlung | |
| DE102016112095A1 (de) | System zum Klimatisieren der Luft eines Fahrgastraums und zur Wärmeübertragung mit Antriebskomponenten eines Kraftfahrzeugs sowie Verfahren zum Betreiben des Systems | |
| DE102022112574B3 (de) | Verfahren zum Starten eines Thermomanagementsystems für Elektrofahrzeuge und Thermomanagementsystem hierfür | |
| DE102017213973A1 (de) | Verfahren zum Betreiben einer Kälteanlage eines Fahrzeugs mit einem eine Kühl- und Heizfunktion aufweisenden Kältemittelkreislauf | |
| EP3685021A1 (de) | Kraftwerk mit kühlsystem, verfahren zum betreiben eines solchen kraftwerks, verfahren zur modifikation eines kraftwerks | |
| EP0995891B1 (de) | Turbomaschine und Verfahren zum Betrieb derselben | |
| EP2187149A2 (de) | Wärmepumpenanlage | |
| DE4303219A1 (de) | Kaltluft-Kältemaschinen-Anlage | |
| DE102005021154B4 (de) | Abtausystem für Verdampfer von Kälteanlagen und Wärmepumpen sowie ein Verfahren zum Betrieb hierzu |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
| 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 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
| 17P | Request for examination filed |
Effective date: 20200423 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
| AX | Request for extension of the european patent |
Extension state: BA ME |
|
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SIEMENS ENERGY GLOBAL GMBH & CO. KG |
|
| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) | ||
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
| 17Q | First examination report despatched |
Effective date: 20220408 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20240501 |