Patent ID: 11920835
Assignee: WEISS TECHNIK GMBH
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC F  C | IPC F

Claim 13:
14. A cooling device for conditioning air, 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, a temperature of at least −80° C. or lower being establishable at the heat exchanger by means of the cooling device, the refrigerant being able to undergo a phase transition in the heat exchanger, the internal heat exchanger being usable to cool the refrigerant of a high-pressure side of the cooling circuit and to reduce an evaporation temperature at the controllable expansion element, the refrigerant being a zeotropic refrigerant, the cooling device having a control device by means of which the controllable expansion element is controllable,
wherein
the controllable expansion element is controllable by means of the control device in such a manner that the refrigerant can partially freeze during an expansion at the controllable expansion element.