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公开(公告)号：US20200283667A1
公开(公告)日：2020-09-10
申请号：US16809363
申请日：2020-03-04
发明人： Murat Aydin , Christian Haack
摘要： A refrigerant for a cooling device comprising a cooling circuit with at least one heat exchanger, the refrigerant undergoing a phase transition in the heat exchanger, the refrigerant being a refrigerant mixture composed of a mass fraction of carbon dioxide (CO2), a mass fraction of difluoromethane (CH2F2) and a mass fraction of at least one other component, wherein the mass fraction of carbon dioxide in the refrigerant mixture is 9 to 75 mass percent, the mass fraction of difluoromethane being up to 70 mass percent, the other component being 2,3,3,3-tetrafluoropropene (C3H2F4), the mass fraction of 2,3,3,3-tetrafluoropropene being up to 47 mass percent.
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公开(公告)号：US20210247113A1
公开(公告)日：2021-08-12
申请号：US17171639
申请日：2021-02-09
发明人： Murat Aydin , Tobias Goepfert , Christian Haack
摘要： A method for operating a cooling device, a cooling device and a test chamber having a cooling device, a temperature of at least −80° C. or lower being established at the heat exchanger by means of the cooling device having a cooling circuit comprising a refrigerant, a heat exchanger, an internal heat exchanger, a compressor, a condenser and a controllable expansion element of the cooling device, the refrigerant undergoing a phase transition in the heat exchanger, the refrigerant of a high-pressure side of the cooling circuit being cooled by means of the internal heat exchanger, the cooling of the refrigerant of the high-pressure side by means of the internal heat exchanger being used to reduce an evaporation temperature at the expansion element, a zeotropic refrigerant being used as refrigerant, the expansion element being controlled by means of a control device of the cooling device in such a manner that the refrigerant partially freezes during an expansion at the expansion element.
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公开(公告)号：US20200283666A1
公开(公告)日：2020-09-10
申请号：US16809246
申请日：2020-03-04
发明人： Murat Aydin , Christian Haack
摘要： A refrigerant for a cooling device comprising a cooling circuit with at least one heat exchanger, the refrigerant undergoing a phase transition in the heat exchanger, the refrigerant being a refrigerant mixture composed of a mass fraction of carbon dioxide (CO2), a mass fraction of difluoromethane (CH2F2) and a mass fraction of at least one other component, wherein the mass fraction of carbon dioxide in the refrigerant mixture is 5 to 65 mass percent, the mass fraction of difluoromethane being up to 68 mass percent, the other component being trifluoroiodomethane (CF3I), fluoromethane (CH3F), ethane (C2H6), 1,1-difluoroethene (C2H2F2), ethene (C2H4), fluoroethene (C2H3F), ethyne (C2H2), propane (C3H8), propene (C3H6) and/or fluoroethane (CH2FCH3), said mass fraction being up to 55 mass percent.
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公开(公告)号：US20200231855A1
公开(公告)日：2020-07-23
申请号：US16750380
申请日：2020-01-23
发明人： Murat Aydin , Yannik Zahrt , David Blaufelder , Christian Haack
摘要： A refrigerant for a cooling device includes a cooling circuit with at least one heat exchanger, the refrigerant undergoing a phase transition in the heat exchanger, the refrigerant being a refrigerant mixture composed of a mass fraction of carbon dioxide, a mass fraction of pentafluoroethane, and a mass fraction of at least one other component, wherein the mass fraction of carbon dioxide in the refrigerant mixture is 20 to 74 mass percent, the mass fraction of pentafluoroethane being 8 to 65 mass percent, the other component being fluoromethane.
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公开(公告)号：US10975281B2
公开(公告)日：2021-04-13
申请号：US16750335
申请日：2020-01-23
发明人： Murat Aydin , Yannik Zahrt , David Blaufelder , Christian Haack
摘要： A refrigerant for a cooling device including a cooling circuit with at least one heat exchanger, the refrigerant undergoing a phase transition in the heat exchanger, the refrigerant being a refrigerant mixture composed of a mass fraction of carbon dioxide, a mass fraction of pentafluoroethane, a mass fraction of difluoromethane and a mass fraction of at least one other component, wherein the mass fraction of carbon dioxide in the refrigerant mixture is 28 to 51 mass percent, the mass fraction of pentafluoroethane being 14.5 to 32 mass percent, the mass fraction of difluoromethane being 14.5 to 38 mass percent, the other component being fluoromethane.
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公开(公告)号：US11300338B2
公开(公告)日：2022-04-12
申请号：US16595790
申请日：2019-10-08
发明人： Murat Aydin , Gerald Klee
摘要： The disclosure relates to a method and a device for providing zeotropic refrigerants in which the refrigerant is formed from a refrigerant blend of at least two components, the components being added to a container in the ratio of their respective mass fractions to the refrigerant, and the refrigerant blend being formed in the container, wherein the temperature and/or the pressure in the container is set by means of a control device such that the refrigerant is present exclusively in the gas phase or exclusively in the liquid phase.
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公开(公告)号：US20210355357A1
公开(公告)日：2021-11-18
申请号：US17319525
申请日：2021-05-13
发明人： Christian Haack , David Blaufelder , Murat Aydin
摘要： The invention relates to a refrigerant for a cooling device (10) comprising a cooling circuit (11) comprising at least one heat exchanger (12), the refrigerant undergoing a phase transition in the heat exchanger, the refrigerant being a refrigerant mixture composed of a fraction of carbon dioxide (CO2), a fraction of 1,1-difluoroethene and a fraction of at least one other component, wherein the fraction of carbon dioxide in the refrigerant mixture is 45 to 90 mole percent, the fraction of 1,1-difluoroethene being 5 to 40 mole percent.
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公开(公告)号：US20200283665A1
公开(公告)日：2020-09-10
申请号：US16808625
申请日：2020-03-04
发明人： Murat Aydin , Christian Haack
摘要： A refrigerant for a cooling device comprising a cooling circuit with at least one heat exchanger, the refrigerant undergoing a phase transition in the heat exchanger, the refrigerant being a refrigerant mixture composed of a mass fraction of carbon dioxide (CO2), a mass fraction of pentafluoroethane (C2HF5) and a mass fraction of at least one other component, wherein the mass fraction of carbon dioxide in the refrigerant mixture is up to 60 mass percent, the mass fraction of pentafluoroethane being 11 to 72 mass percent, the other component being 2,3,3,3-tetrafluoropropene (C3H2F4), the mass fraction of 2,3,3,3-tetrafluoropropene being up to 51 mass percent.
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公开(公告)号：US20200231854A1
公开(公告)日：2020-07-23
申请号：US16750335
申请日：2020-01-23
发明人： Murat Aydin , Yannik Zahrt , David Blaufelder , Christian Haack
摘要： A refrigerant for a cooling device including a cooling circuit with at least one heat exchanger, the refrigerant undergoing a phase transition in the heat exchanger, the refrigerant being a refrigerant mixture composed of a mass fraction of carbon dioxide, a mass fraction of pentafluoroethane, a mass fraction of difluoromethane and a mass fraction of at least one other component, wherein the mass fraction of carbon dioxide in the refrigerant mixture is 28 to 51 mass percent, the mass fraction of pentafluoroethane being 14.5 to 32 mass percent, the mass fraction of difluoromethane being 14.5 to 38 mass percent, the other component being fluoromethane.
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