EP4081731A1 - Method for producing a component for storing or distributing compressed gas, and component for storing or distributing compressed gas - Google Patents
Method for producing a component for storing or distributing compressed gas, and component for storing or distributing compressed gasInfo
- Publication number
- EP4081731A1 EP4081731A1 EP20837974.3A EP20837974A EP4081731A1 EP 4081731 A1 EP4081731 A1 EP 4081731A1 EP 20837974 A EP20837974 A EP 20837974A EP 4081731 A1 EP4081731 A1 EP 4081731A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- aluminum alloy
- core material
- component
- compressed gas
- ductile
- 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- Withdrawn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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
- F17C1/14—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge constructed of aluminium; constructed of non-magnetic steel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
- F17C2203/0602—Wall structures; Special features thereof
- F17C2203/0604—Liners
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
- F17C2203/0602—Wall structures; Special features thereof
- F17C2203/0607—Coatings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
- F17C2203/0602—Wall structures; Special features thereof
- F17C2203/0612—Wall structures
- F17C2203/0614—Single wall
- F17C2203/0617—Single wall with one layer
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
- F17C2203/0634—Materials for walls or layers thereof
- F17C2203/0636—Metals
- F17C2203/0646—Aluminium
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
- F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
- F17C2205/0382—Constructional details of valves, regulators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/01—Pure fluids
- F17C2221/012—Hydrogen
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/32—Hydrogen storage
Definitions
- the invention relates to a method for producing a component for storing or distributing compressed gas and a component for storing or distributing compressed gas.
- a pressure accumulator in particular a hydrogen pressure accumulator, with a container body is known from DE 102010 000966 A1.
- the container body is enclosed by an enveloping body, an intermediate space being formed between the container body and the enveloping body.
- the container body is formed from a plastic liner or an aluminum liner.
- the inventive method for producing a component for storing or distributing compressed gas with the features of the independent claim has the advantage that the lightweight construction potential of aluminum, particularly relevant for mobile compressed gas applications, can be fully exploited, despite the susceptibility of aluminum or many aluminum alloys to stress corrosion cracking.
- By cladding and / or plating and / or coating any aluminum alloys with ductile and at the same time corrosion-resistant aluminum alloys, such as in particular the aluminum alloy EN AW-1050A, and / or pure aluminum will overcome this application limitation of aluminum or aluminum alloys.
- an aluminum alloy can be selected for the core material, which is high-strength and mechanically highly stressable, the susceptibility to stress corrosion cracking being irrelevant, while an aluminum alloy of high ductility different from the core material can be selected for the coating, which is low, preferably none , Susceptible to stress corrosion cracking. It is therefore particularly advantageous that the ductile aluminum alloy has a higher ductility than the core material. Due to its high ductility, the ductile aluminum alloy also has the advantage that the aluminum alloy has a high resistance to cracking, even with large deformations of the core material, so that moisture access to the underlying core material is prevented for the entire service life of the component for storing or distributing compressed gas.
- the core material comprising aluminum or an aluminum alloy is coated on the pressure gas side with a ductile aluminum alloy.
- the core material is preferably made of aluminum or an aluminum alloy.
- the core material is a composite material comprising aluminum or an aluminum alloy and a further material, for example glass fibers.
- a method is advantageous in which the coating, in particular the ductile aluminum alloy, is applied to the core material by means of plating.
- Plating is a metalworking process in which one or more metal layers, here the ductile aluminum alloy, are applied to a base metal, here the core material, to create an inseparable connection. This can be done, for example, by rolling on the ductile aluminum alloy and / or electroplating, that is to say by electrochemical deposition of the ductile aluminum alloy.
- a method in which the coating, in particular the ductile aluminum alloy, is applied to the core material by means of build-up welding is particularly advantageous.
- the ductile aluminum alloy in the form of the filler metal is applied to the core material in a welding process.
- a method is also advantageous in which the coating, in particular the ductile aluminum alloy, is rolled and / or soldered onto the core material.
- a ductile aluminum alloy foil is placed on the core material and a connection between the components is established by rolling by means of pressure and / or an increase in temperature.
- soldering a foil of the ductile aluminum alloy is placed on the core material and connected to the core material by means of solder.
- a method in which the coating, in particular the ductile aluminum alloy, is applied to the core material by internal high pressure forming is particularly advantageous.
- the ductile aluminum alloy is inserted into a cavity of the component made from the core material for storing or distributing compressed gas and is pressed against the inner wall of the core material by applying an internal pressure.
- a method in which the coating, in particular the ductile aluminum alloy, is applied to the core material by co-extrusion is also advantageous.
- co-extrusion both the core material and the ductile aluminum alloy are pressed through the same extrusion tool to produce a semi-finished product consisting of the core material and the ductile aluminum alloy.
- the component for storing or distributing compressed gas is made from the semi-finished product, for example by means of a forming process.
- Wrought aluminum alloys are aluminum alloys with additions of magnesium and / or silicon and / or copper and / or zinc and / or nickel and / or manganese to increase ductility.
- the aluminum alloy EN AW-1050A preferably has the following composition:
- the invention also relates to a component for storing or distributing compressed gas with a core material comprising aluminum or an aluminum alloy, the core material being coated on the compressed gas side with a ductile aluminum alloy and / or pure aluminum, the components preferably being produced by the method described above.
- the components are in particular a pressurized gas tank, in particular a hydrogen pressurized gas tank, and / or a valve, in particular a temperature valve and / or a pressure relief valve and / or a shut-off valve and / or a check valve and / or metering valve, and / or a pipe, in particular a hydrogen pipe.
- a hydrogen pressurized gas tank is used to store hydrogen as the pressurized gas, a distinction being made between a type I, type II, type III, type IV and type V hydrogen pressurized gas tank, the types differing mainly in the wall material and / or the pressure resistance.
- the method described is suitable for the production of all types of hydrogen pressure gas tanks having aluminum or an aluminum alloy in the core material.
- a hydrogen pipe is used to transport and thus distribute hydrogen as the pressurized gas.
- the component is a plug-in component, the plug-in component consisting of the core material with the coating on the pressure gas side, in particular with the ductile aluminum alloy. Insertion components have the advantage that, by inserting them, workpieces can be equipped quickly and easily with the required material properties, in particular with a low susceptibility to stress corrosion cracking.
- the components for storing or distributing compressed gas have advantages corresponding to those of the method described above.
- Fig. 2 shows a pressure gas tank
- a method for producing a component for storing or distributing compressed gas with a core material comprising aluminum or an aluminum alloy is described below, the core material being coated on the compressed gas side with a ductile aluminum alloy and / or pure aluminum.
- a component for storing or distributing compressed gas with a core material comprising aluminum or an aluminum alloy is described, in particular a compressed gas tank or a valve, the core material being coated on the compressed gas side with a ductile aluminum alloy and / or pure aluminum.
- the invention is based on the knowledge that in the case of stationary and mobile gas storage tanks, tank inner liners and tank attachments made of aluminum alloys, which are exposed to a pressurized gas atmosphere in use, sufficient amounts of moisture when filling the gas storage tanks, even if the corresponding purity specifications for pressurized gases, such as hydrogen, are complied with can be entered that condense at low temperatures occurring during operation by falling below the dew point and in connection with the tensile stresses caused by internal pressure can induce stress corrosion cracking and damage the component.
- the core material is charged and / or plated and / or coated with a ductile aluminum alloy in order to prevent the contact between moisture / condensate and the core material susceptible to stress corrosion cracking.
- the coating material or the cladding material is co-extruded and / or rolled and / or welded and / or soldered and / or rolled onto the core material.
- the coating is applied by co-extrusion of core and coating material or by hydroforming. The inside of valves exposed to the compressed gas is coated or the valves are equipped with plug-in components.
- the implementation of the invention in the case of components for storing or distributing compressed gas can be demonstrated in a destructive manner by a metallographic section or by chemical analysis of the core material and cladding, or also non-destructively if access is available.
- aluminum liners from pressurized gas tanks in particular of type III and / or pressurized gas cylinders, for example for divers, and / or aluminum components exposed to pressurized gas, for example temperature valves and / or pressure relief valves (Thermal and Pressure Relief Devices / TP RD) and / or shut-off valves (Shut -off valves) and / or check valves and / or metering valves are produced.
- FIG. 1 shows a method for producing a component for storing or distributing compressed gas.
- the component for storing or distributing compressed gas is produced from the core material comprising aluminum or an aluminum alloy.
- the component is in particular a pressurized gas tank, in particular a hydrogen pressurized gas tank, and / or a valve, in particular a temperature valve and / or a pressure relief valve and / or a shut-off valve and / or a check valve and / or a metering valve, and / or a pipeline , especially a hydrogen pipeline.
- the core material is coated on the compressed gas side with a ductile aluminum alloy.
- the ductile aluminum alloy is applied to the core material by means of plating. Alternatively or additionally, the ductile aluminum alloy is applied and / or rolled onto the core material in a further variant by means of build-up welding. In a further variant, the ductile aluminum alloy is alternatively or additionally applied to the core material by hydroforming.
- the component has an insert component, the insert component being produced from the core material.
- the plug-in component is designed to be installed in a further component for storing or distributing compressed gas, in particular a valve. In this variant, the plug-in component is built into the component for storing or distributing compressed gas, in particular a valve, in a further process step.
- the ductile aluminum alloy is first applied to the core material, for example by co-extrusion, and then in a further process step the component for storing or distributing compressed gas is made from the semi-finished product thus produced produced.
- the ductile aluminum alloy and / or the pure aluminum has a higher ductility than the core material and / or that the ductile aluminum alloy is a wrought aluminum alloy, in particular the aluminum alloy EN AW-1050A.
- FIG. 2 shows a pressurized gas tank 20, for example a hydrogen pressurized gas tank, as a component for storing pressurized gas 34.
- the pressurized gas tank 20 comprises a core material 22 comprising aluminum or an aluminum alloy and a coating on the pressurized gas side 28 with a ductile aluminum alloy 24
- Pressurized gas for example hydrogen, exerts an internal pressure 32 against the wall of the pressurized gas tank 20. Due to impurities that are technically not completely avoidable, the compressed gas 34 has moisture 30.
- the pressurized gas tank 20 also comprises a filler neck 26 for filling the pressurized gas tank 20 with the pressurized gas 34.
- the pressurized gas tank 20 was produced by a method explained with reference to FIG. 1 for producing a component for storing or distributing pressurized gas 34.
- FIG. 3 shows a valve 40 as a component for distributing compressed gas 34.
- the valve 40 is designed as a shut-off valve.
- the valve 40 comprises a core material 22 comprising aluminum or an aluminum alloy and a coating on the pressure gas side 28 with a ductile aluminum alloy 24.
- the valve 40 comprises a high pressure side 42 and a low pressure side 44, the high pressure side 42 being opposite the valve disk 50 seated in the valve seat 52 Low pressure side 44 is sealed.
- the compressed gas 34 for example hydrogen, located on the high pressure side 42 of the valve 40 exerts an internal pressure 32 against the wall of the valve 40. Due to impurities that are technically not completely avoidable, the compressed gas 34 has moisture 30.
- the core material 22 is coated both on the high pressure side 42 and on the low pressure side 44 with the ductile aluminum alloy 24 and thus on the compressed gas side 28.
- the valve seat 52 and / or the valve disk 50 is additionally or alternatively coated with the ductile aluminum alloy 24.
- the valve 40 has a bushing 54, a spindle 48, which is mounted in the bushing 54, and a handwheel 46. The valve 40 is designed to connect the high-pressure side 42 to the low-pressure side 44 in that the valve disk 50 is released from the valve seat 52 by actuating the handwheel 46 via the spindle 48.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019220512.7A DE102019220512A1 (en) | 2019-12-23 | 2019-12-23 | Process for producing a component for storing or distributing compressed gas and a component for storing or distributing compressed gas |
PCT/EP2020/086715 WO2021130098A1 (en) | 2019-12-23 | 2020-12-17 | Method for producing a component for storing or distributing compressed gas, and component for storing or distributing compressed gas |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4081731A1 true EP4081731A1 (en) | 2022-11-02 |
Family
ID=73598109
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20837974.3A Withdrawn EP4081731A1 (en) | 2019-12-23 | 2020-12-17 | Method for producing a component for storing or distributing compressed gas, and component for storing or distributing compressed gas |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP4081731A1 (en) |
JP (1) | JP2023508381A (en) |
KR (1) | KR20220113811A (en) |
CN (1) | CN114787549A (en) |
DE (1) | DE102019220512A1 (en) |
WO (1) | WO2021130098A1 (en) |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0309830A1 (en) * | 1987-09-29 | 1989-04-05 | Siemens Aktiengesellschaft | Gas barrier on dischargers and beam waveguides |
JPH11257593A (en) * | 1998-03-12 | 1999-09-21 | Nippon Sanso Kk | High pressure vessel and surface treatment method for aluminium and surface treatment device |
CH695222A5 (en) * | 2001-04-25 | 2006-01-31 | Eva Maria Moser | Gas-tight container. |
JP4117127B2 (en) * | 2001-12-21 | 2008-07-16 | 新潟県 | Aluminum-coated magnesium alloy material and manufacturing method thereof |
JP2004347042A (en) * | 2003-05-23 | 2004-12-09 | Showa Denko Kk | Metal tubular body, liner for gas cylinder using the tubular body, and method of manufacturing the liner for gas cylinder |
DE102010000966B4 (en) | 2010-01-18 | 2021-08-26 | Robert Bosch Gmbh | Pressure accumulators, in particular hydrogen pressure accumulators |
DE102014213583A1 (en) * | 2014-07-11 | 2016-01-14 | Bayerische Motoren Werke Aktiengesellschaft | Device for protecting a high pressure gas container of a motor vehicle, high pressure gas container for a motor vehicle and method for producing a high pressure gas container |
DE102015223263A1 (en) * | 2015-11-25 | 2017-06-01 | Bayerische Motoren Werke Aktiengesellschaft | Cryogenic pressure vessel |
DE102016008107A1 (en) * | 2016-07-01 | 2018-01-04 | Daimler Ag | tank valve |
-
2019
- 2019-12-23 DE DE102019220512.7A patent/DE102019220512A1/en active Pending
-
2020
- 2020-12-17 JP JP2022538866A patent/JP2023508381A/en active Pending
- 2020-12-17 KR KR1020227025188A patent/KR20220113811A/en unknown
- 2020-12-17 CN CN202080089325.5A patent/CN114787549A/en active Pending
- 2020-12-17 EP EP20837974.3A patent/EP4081731A1/en not_active Withdrawn
- 2020-12-17 WO PCT/EP2020/086715 patent/WO2021130098A1/en unknown
Also Published As
Publication number | Publication date |
---|---|
WO2021130098A1 (en) | 2021-07-01 |
DE102019220512A1 (en) | 2021-06-24 |
JP2023508381A (en) | 2023-03-02 |
CN114787549A (en) | 2022-07-22 |
KR20220113811A (en) | 2022-08-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE1966816C2 (en) | Metal pipe | |
EP1827752B1 (en) | Method for producing a welded connection and method for repairing a welded connection | |
EP2959208B1 (en) | Pressure vessel comprising a heat exchanger for a cryogenically stored medium | |
US7021343B2 (en) | Fuel filler pipe for automobile | |
EP1801250A1 (en) | Parts made from copper alloy with low migration for conduits conveying fluids or drinking water | |
DE10022595A1 (en) | Plate heat exchanger | |
EP4081731A1 (en) | Method for producing a component for storing or distributing compressed gas, and component for storing or distributing compressed gas | |
DE102019114276A1 (en) | Profiled nut of a screw drive, in particular ball screw nut of a ball screw drive and method for their production | |
WO2004078404A1 (en) | Protective device for welding electrodes | |
DE102006032406B4 (en) | Production process for heat exchangers and heat exchangers | |
DE102019134644A1 (en) | pressure vessel | |
DE2032279A1 (en) | Corrosion-resistant double-walled pipe with a surrounding shell, especially for brake and fuel lines, testify to Kraftfahl | |
EP1883491B1 (en) | Component with a weld projection having a projection | |
EP4032999B1 (en) | Low weight hydrogen distribution system and components | |
DE102008024011A1 (en) | Longitudinal seam-welded multilayered tube for use in petrochemical industry, particularly for oil pipes, gas pipes and process pipes, has external layer and internal layer, where internal layer is firmly connected with external layer | |
DE10162858A1 (en) | Metal machine bolt has at least one recess in cylindrical surface region with its longitudinal axis at angle other than zero to vertical to bolt's longitudinal axis | |
DE102014000617A1 (en) | Compressed gas containers | |
EP0255465A2 (en) | Small caliber multi-layered metal pipe | |
AT521614B1 (en) | Containers, especially pressure vessels | |
DE102007022632A1 (en) | Method of joining components of high strength aluminum material and heat exchangers mounted by this method | |
DE69913478T2 (en) | Process for the production of a multilayer thin-walled bellows | |
DE102017213552A1 (en) | Slot nut, rail vehicle and use and manufacturing method of a sliding block | |
DE102010063114A1 (en) | Flange for pressure cells or diaphragm seal devices and method of making such flanges | |
DE112022005284T5 (en) | Solid metallic glass structures for hydrogen applications | |
DE102023202548A1 (en) | Tank valve device for a gas storage system of a gas-powered vehicle and gas storage system for storing a gaseous fuel |
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: 20220725 |
|
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 |
|
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: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20230214 |