EP3578895A2 - Machine de rinçage de sécurité pour un boîtier de circuit de froid - Google Patents

Machine de rinçage de sécurité pour un boîtier de circuit de froid Download PDF

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Publication number
EP3578895A2
EP3578895A2 EP19173263.5A EP19173263A EP3578895A2 EP 3578895 A2 EP3578895 A2 EP 3578895A2 EP 19173263 A EP19173263 A EP 19173263A EP 3578895 A2 EP3578895 A2 EP 3578895A2
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EP
European Patent Office
Prior art keywords
housing
air
working fluid
purge air
purge
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
Application number
EP19173263.5A
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German (de)
English (en)
Other versions
EP3578895A3 (fr
EP3578895B1 (fr
EP3578895C0 (fr
Inventor
Thomas Badenhop
Tobias Lingk
Christof Krampe-Zadler
Hans-Josef Spahn
Thomas-Friedrich Szuder
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vaillant GmbH
Original Assignee
Vaillant GmbH
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Filing date
Publication date
Application filed by Vaillant GmbH filed Critical Vaillant GmbH
Publication of EP3578895A2 publication Critical patent/EP3578895A2/fr
Publication of EP3578895A3 publication Critical patent/EP3578895A3/fr
Application granted granted Critical
Publication of EP3578895B1 publication Critical patent/EP3578895B1/fr
Publication of EP3578895C0 publication Critical patent/EP3578895C0/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/32—Responding to malfunctions or emergencies
    • F24F11/36—Responding to malfunctions or emergencies to leakage of heat-exchange fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/10—Control of fluid heaters characterised by the purpose of the control
    • F24H15/12—Preventing or detecting fluid leakage
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B25/00—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00
    • F25B25/005—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00 using primary and secondary systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B30/00—Heat pumps
    • F25B30/02—Heat pumps of the compression type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/04—Details of condensers
    • F25B2339/047—Water-cooled condensers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/12—Inflammable refrigerants

Definitions

  • the invention relates to irregular conditions in refrigeration circuits in which a working fluid acting as a refrigerant is conducted in a thermodynamic cycle, such as the Rankine cycle.
  • thermodynamic cycle such as the Rankine cycle.
  • These are mainly heat pumps, air conditioners and refrigerators, as they are used in residential buildings.
  • Residential buildings are understood to mean private houses, rental housing complexes, hospitals, hotel complexes, restaurants and combined residential and commercial buildings in which people live and work permanently, in contrast to mobile devices such as car air conditioners or transport boxes, or even industrial equipment or medical devices. What they all have in common is that they use energy to generate useful heat or useful cooling and form heat-transfer systems.
  • thermodynamic cycles have long been known, as well as the safety problems that can arise when using suitable working fluids.
  • the best known working fluids at the time are combustible and poisonous.
  • safety refrigerants consisting of fluorinated hydrocarbons.
  • these safety refrigerants damage the ozone layer, lead to global warming, and that their safety-related harmlessness led to constructive inattentiveness.
  • Up to 70% of the turnover was accounted for by the refill demand of leaking equipment and its leakage losses, which was accepted as long as this was considered economically justifiable in individual cases and promoted the need for replacement procurement.
  • the lower ignition limit of propane as working fluid is about 1.7% by volume in air, which corresponds to 38 g / m 3 in air.
  • Propane is also heavier than air, so sinks in still air on the ground and accumulates there. So if a part of the propane in a flow-poor zone of the closed space in which the disturbed unit is collect, the local explosion limits can be achieved much faster than can be expected from the quotient of total volume of volume to leaked amount of propane.
  • the WO 2015/032905 A1 seeks to solve this problem by an electric current generator in the opening or its interlocking this space is integrated and when actuated in a first step generates and provides the electrical energy with which the sensor is activated, and in the event of an alarm Lock then does not release, but causes a ventilation of the enclosed space, and only in a second step, an unlocking and opening allows.
  • the DE-PS 553 295 describes an encapsulated compression refrigeration machine in which the refrigerant compressor 1, its drive motor 2, evaporator 3, condenser 4 and control valve 5 are enclosed in a double-walled capsule 6 and 7, respectively. In the space between the double-walled capsule, a negative pressure is created and leaks, which could occur at the openings for cooling water and brine, sucked. The aspirated working fluid can subsequently be recovered if necessary. It should be noted that there is no ambient air within the encapsulated space and due to the negative pressure in the double jacket also can not penetrate into the encapsulated interior.
  • the DE 41 14 529 A1 describes a safety device for a filled with a dangerous medium refrigeration system, which consists of at least one complete refrigeration unit comprising a refrigerant circuit with evaporator, compressor and condenser, and a drive motor.
  • the system is enclosed gas-tight, the enclosure is designed after the technically possible maximum pressure in the event of failure, and from the enclosure, the connections for the refrigerant, a coolant and electrical supply, monitoring and control lines are pressure-tight to the outside. It can be connected to a surge tank.
  • the DE 195 25 064 C1 describes a refrigerator with a gas-tight housing, which accommodates all refrigerant-carrying components of the machine, a space connecting the interior of the gas-tight housing with an outlet space is provided, and the space is filled with a refrigerant sorbing substance.
  • the amount of sorbent material is dimensioned so that the entire amount of any escaping refrigerant can be absorbed and kept away from the environment.
  • the space filled with the sorbent material is open to the environment. For refrigerants that are heavier than air, the space is open at the bottom, for those that are lighter, it is open at the top, so that a delivery fan is not required.
  • the sorbent is introduced into the housing and encloses the chiller and the refrigerant-carrying facilities completely. On its way out, baffles are provided to prevent short circuit currents and force escaping gas through the sorbent.
  • a double-walled embodiment in which the sorbent is arranged in the double jacket is also possible.
  • a measuring device for refrigerant can be provided.
  • the DE 195 26 980 A1 describes an apparatus and method for cleaning closed space air having gaseous contamination. Once the contaminant is detected by a gas sensor, it controls a compressor which directs the air through an absorber in that space, thereby absorbing the contaminant. The cleaned air leaves the absorber in the closed room.
  • the object of the invention is therefore to provide an apparatus and a method for safe and energy-efficient flushing of a housing, which is placed in a residential building, and in its interior a left-handed thermodynamic Clausius-Rankine cycle in a closed, hermetically sealed working fluid circuit by means of a flammable working fluid is performed, which is heavier than air in the gaseous state under atmospheric conditions.
  • Embodiments of the invention relate to the scavenging air inlet, which is composed of several components. These components are the inlet of the purging air from the outside space, the forwarding of the purging air in the housing interior with equipment, and the entry of purging air into the housing interior.
  • the entry of the purging air into the interior of the housing is arranged on the upper side of the housing and takes place by means of a dispersing nozzle. This ensures that there is a slow downward flow without stratification over the housing cross-section and the vortex formation is minimized.
  • the location of the purging air entering the housing interior is normally not identical to the purging air entering the housing from the installation space, but is provided via a conduit with means which may also provide suction of outdoor air outside the building.
  • a plurality of inlets such as in slot shape or a perforated plate, provided whose location is adapted locally to the conditions of the site, and are summarized in a manifold, which Also equipped with a non-return valve and a throttle.
  • the large number of inlets can also be placed at some distance from the housing.
  • the escape of the purge air from the housing interior is usually not identical to the outlet of the purge air in the housing bottom, the lowest point in the housing, but via a line with facilities that can also run partially inside the housing.
  • the connection of the scavenging air outlet line can thus take place anywhere in the housing wall, it does not matter whether the conveyor blower inside or outside of the housing and inside or outside of the installation room or the building is arranged.
  • the drain from the housing should also be led to a location outside the building, where there are no sinkers, such as basement gratings or the like.
  • the delivery blower can be arranged in the intake region or in the discharge region, in one case it generates a slight negative pressure, in the other case a slight overpressure in the housing.
  • Further embodiments relate to the heat balance of the scavenging air. If purge air is led out of a closed room to the outside of the building, air must be in the the same amount from outside into the building. If the temperatures inside and outside the building are different, the purge air causes a heat flow, whereby the room temperature of the place of installation does not matter. Practically, this means that without appropriate further measures, an undesirable heat loss or heat input, depending on the operating mode, would take place according to the temperature difference between the inside temperature and the outside temperature. For this reason, the scavenging air can both be cooled and heated, the devices being used to operate the cyclic process.
  • the scavenging air drawn off from the housing bottom is led to a switchable branch whose branches are led to additional heat exchangers, which are located respectively in the heat carrier supply lines to the two heat exchangers of the cycle.
  • additional heat exchangers can be located inside or outside the housing.
  • the invention also includes the method that a conveyor fan sucks the purge air from the interior of the building while the housing is under or over pressure, the withdrawn purge air is passed into at least one heat exchanger in which the purge air against a heat transfer fluid, which at the Circuit is connected, either cooled or heated.
  • the purge air is passed into a heat exchanger, which conducts heated heat transfer fluid to the outside area, where it gives off heat to the environment.
  • the purge air in this case serves as a further heat sink and helps with the desired cooling of the building.
  • the outdoor temperature is lower than the indoor temperature of the building, heating is required and the purge air must be cooled before leaving the building.
  • the purge air is passed into a heat exchanger, which returns heat transfer fluid from the outside, before it is passed into the evaporator heat exchanger of the cycle.
  • the purge air serves in this case as a further source of heat and helps with the desired building heating.
  • heat transfer fluids are here all gaseous or liquid media to understand, with which heat is transferred, such as air, water, brine, heat transfer oils or the like.
  • the cycle is not operated or carried out as a heat pump switchable between cooling operation and heating operation, or if it is multi-stage, other flows of heat transfer fluids can also be used.
  • the purging air can be advantageously connected to a device for leakage detection.
  • the purge air operation can normally be severely restricted or even adjusted, while in the detection of a leak, the amount of air is increased accordingly.
  • the delivery fan may be equipped with a backup battery in the event of a power failure, and a solar powered connection, which may also always keep the backup battery charged, is advantageous. If the conveyor fan is located outside the building, an integrated construction with a solar cell and a reserve battery makes sense.
  • Fig. 1 shows a conventional refrigeration circuit 1 with a compressor 2, a condenser 3, a pressure reduction 4 and an evaporator 5 in a closed housing 6.
  • the housing 6 is usually soundproof and therefore designed to be airtight, it may be slight negative pressure, for example 20 or 50 hPa , withstand. Structurally, water storage and switching elements can be integrated.
  • the housing 6 has, in addition to a power connection not shown here, line connections for the heat source, the heat source connection 7 and the heat source supply 8, and the heating circuit with the heat sink lead 9 and the heat sink connection 10.
  • the refrigeration cycle shown here in simplified form may also include a plurality of heat exchangers at different temperature levels, a stepped pressure reduction, switching devices for heating operation in winter and cooling in summer, as well as a large number of sensors, wherein the purging devices are basically identical.
  • evaporator 5 and capacitor 3 are exchangeable in their operation or not shown switching devices in the refrigeration circuit can produce this functionality in the prior art, so that the heating circuit to the refrigeration cycle of an air conditioner and the heat source of the heating operation to the heat sink in the air conditioning.
  • the purging air enters the housing 6 through the dispersing device 11 and is distributed over its entire surface.
  • the purging air is in this case sucked through an air inlet 12 with a plurality of air inlet slots from the building interior and an air line with throttling 13, which is equipped with a non-return valve 14. provided.
  • throttling also causes a corresponding negative pressure is always inside the housing, which is maintained due to the non-return valve during an interruption of the purge air flow to prevent leakage of leakage-induced working fluid into the building interior.
  • the purge air is withdrawn at the lowest point 15 of the housing 6 by means of a trigger 16.
  • the devices in the housing are arranged so that no shells or bagging can form, in which leaked leakage due to working fluid could collect. Due to the slight, preferably turbulence-free downward flow of the scavenging air heavier gaseous components are safely conveyed down to the trigger 16 and deducted.
  • both the branches and the scavenging air line and the heat exchangers can be arranged outside of the housing 6. Depending on whether the heat pump system is in heating mode or in cooling mode, the purging air is conducted into one of the purging air heat exchangers 18 or 21 in each case.
  • this is the scavenge air heat exchanger 21.
  • the scavenging air gives off heat to the heat source connection 7, which is colder than the warm scavenging air. If the house heat pump gets its heat from the outside air, the heat source connection would have approximately outside temperature and the purge air discharged would get a temperature just above it, before it is discharged to the outside. The vast majority of the exhaust air heat would be recovered in this way, as he subsequently enters the cycle.
  • this is the scavenge air heat exchanger 21.
  • the scavenging air absorbs heat from the heat sink connection 10 which is warmer than the scavenging air when the outside temperature is higher than the building interior temperature.
  • a scavenge air heat exchanger in the line of the heat sink lead 9, which would have the advantage of a higher temperature difference in cooling mode, but would be associated with the disadvantage that a higher load would be created in the cycle, meaning that energy recovery would be less. This would be advantageous but in the case when the heat sinks would be used for the water heating in cooling mode.
  • the person skilled in the art will select the most favorable integration here in individual cases, although of course a third purge air heat exchanger could also be used.
  • the purge air is subsequently conveyed through the discharge line 22 via a non-return valve 23, which ensures the negative pressure of the housing 6 as the non-return valve 14, from the scavenging air conveyor fan 24 to the outside of the outer wall 25 of the building and distributed over a dispersing device 26.
  • This path is used in the unlikely event of an accident, in which an overpressure could build up in the housing, even as an emergency lowering.
  • Fig. 2 shows the case that the delivery fan 24 is placed at the location of the air intake 12 within the building. This has the advantage that in case of leakage no contaminated air-gas mixture is sucked in, and the ignitability in a possible Explosion hazard is further reduced.
  • the housing 6 is placed under slight overpressure.
  • the other facilities correspond to the presentation of Fig. 1 ,
  • Fig. 3 shows the case that the delivery fan 24, as in Fig. 1 shown, is arranged in the drain line.
  • the air intake 12 takes place outside the building, which reduces energy losses.
  • heat equalization takes place in the same way as in the intake of air inside the building, as in Fig. 1 described can be compensated.
  • the housing is operated at negative pressure.
  • Fig. 4 shows the case that the delivery fan 24 is placed at the location of the air intake 12 outside the building. For this applies the same with regard to ignitability, as with Fig. 2 is described, and the possibility of heat balance, as in Fig. 3 is described.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Other Air-Conditioning Systems (AREA)
  • Vending Machines For Individual Products (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
EP19173263.5A 2018-06-05 2019-05-08 Dispositif et procédé pour le rinçage sûr et économique d'une enceinte Active EP3578895B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102018113332.4A DE102018113332A1 (de) 2018-06-05 2018-06-05 Sicherheitsspülvorrichtung für ein Kältekreisgehäuse

Publications (4)

Publication Number Publication Date
EP3578895A2 true EP3578895A2 (fr) 2019-12-11
EP3578895A3 EP3578895A3 (fr) 2020-02-26
EP3578895B1 EP3578895B1 (fr) 2023-06-14
EP3578895C0 EP3578895C0 (fr) 2023-06-14

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Family Applications (1)

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EP19173263.5A Active EP3578895B1 (fr) 2018-06-05 2019-05-08 Dispositif et procédé pour le rinçage sûr et économique d'une enceinte

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Country Link
EP (1) EP3578895B1 (fr)
DE (1) DE102018113332A1 (fr)
ES (1) ES2950030T3 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3683518A1 (fr) * 2019-01-21 2020-07-22 Viessmann Werke GmbH & Co. KG Appareil thermotechnique
EP3875862A1 (fr) * 2020-03-06 2021-09-08 Stiebel Eltron GmbH & Co. KG Pompe à chaleur
EP4050284A1 (fr) * 2021-02-26 2022-08-31 Stiebel Eltron GmbH & Co. KG Pompe à chaleur
EP4336119A1 (fr) * 2022-09-09 2024-03-13 Vaillant GmbH Gestion d'humidité et évacuation de condensat pour boîtier de pompe à chaleur
DE102023201218A1 (de) 2023-02-14 2024-08-29 Robert Bosch Gesellschaft mit beschränkter Haftung Vorrichtung und Verfahren zur Ausleitung eines gasförmigen Kältemittels

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111720950A (zh) * 2020-05-19 2020-09-29 青岛海尔空调器有限总公司 减少空调器的室内侧冷媒泄露量的控制方法及空调器
DE102021201712A1 (de) 2021-02-23 2022-08-25 Glen Dimplex Deutschland Gmbh Wärmepumpenanlage sowie Verfahren zum Betreiben einer Wärmepumpenanlage
EP4194769A1 (fr) 2021-12-07 2023-06-14 Glen Dimplex Deutschland GmbH Installation de réfrigérant et module de réfrigérant

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE553295C (de) 1931-02-03 1932-06-23 Bbc Brown Boveri & Cie Gekapselte Kompressionskaeltemaschine
DE4114529A1 (de) 1991-05-03 1993-02-11 Aero Tech Klima Kaelte Sicherheitseinrichtung fuer eine kaeltetechnische anlage
DE19525064C1 (de) 1995-07-10 1996-08-01 Joachim Dr Ing Paul Kältemaschine
DE19526980A1 (de) 1995-07-25 1997-01-30 York Int Gmbh Verfahren und eine Vorrichtung zur Reinigung von Luft
WO2015032905A1 (fr) 2013-09-05 2015-03-12 Holger König Procédé permettant d'empêcher une fuite d'un contenant et contenant pourvu d'un dispositif anti-fuite

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29510024U1 (de) * 1995-06-21 1995-11-09 Ilka Mafa Kältetechnik GmbH, 06184 Döllnitz Sicherheitseinrichtung für Maschinenräume mit Ammoniak-Kälteaggregaten
DE102014112545B4 (de) * 2014-09-01 2022-06-02 Denso Automotive Deutschland Gmbh Kompaktaggregat für ein Kraftfahrzeug und Verfahren zur Notfallbehandlung einer Kraftfahrzeugklimaanlage
EP3106780B1 (fr) * 2015-06-17 2017-11-22 Vaillant GmbH Installation de pompes à chaleur
DE202016103305U1 (de) * 2016-06-22 2016-07-07 Futron GmbH Explosionsgeschützte Vorrichtung zum Temperieren von Wärmeträgerfluiden

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE553295C (de) 1931-02-03 1932-06-23 Bbc Brown Boveri & Cie Gekapselte Kompressionskaeltemaschine
DE4114529A1 (de) 1991-05-03 1993-02-11 Aero Tech Klima Kaelte Sicherheitseinrichtung fuer eine kaeltetechnische anlage
DE19525064C1 (de) 1995-07-10 1996-08-01 Joachim Dr Ing Paul Kältemaschine
DE19526980A1 (de) 1995-07-25 1997-01-30 York Int Gmbh Verfahren und eine Vorrichtung zur Reinigung von Luft
WO2015032905A1 (fr) 2013-09-05 2015-03-12 Holger König Procédé permettant d'empêcher une fuite d'un contenant et contenant pourvu d'un dispositif anti-fuite

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3683518A1 (fr) * 2019-01-21 2020-07-22 Viessmann Werke GmbH & Co. KG Appareil thermotechnique
EP3875862A1 (fr) * 2020-03-06 2021-09-08 Stiebel Eltron GmbH & Co. KG Pompe à chaleur
EP4050284A1 (fr) * 2021-02-26 2022-08-31 Stiebel Eltron GmbH & Co. KG Pompe à chaleur
EP4336119A1 (fr) * 2022-09-09 2024-03-13 Vaillant GmbH Gestion d'humidité et évacuation de condensat pour boîtier de pompe à chaleur
DE102023201218A1 (de) 2023-02-14 2024-08-29 Robert Bosch Gesellschaft mit beschränkter Haftung Vorrichtung und Verfahren zur Ausleitung eines gasförmigen Kältemittels

Also Published As

Publication number Publication date
EP3578895A3 (fr) 2020-02-26
EP3578895B1 (fr) 2023-06-14
DE102018113332A1 (de) 2019-12-05
EP3578895C0 (fr) 2023-06-14
ES2950030T3 (es) 2023-10-04

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