COOLING SYSTEM Russian patent published in 2017 - IPC F25B7/00 

FIELD: household appliances.

SUBSTANCE: proposed cooling system comprises refrigeration circuit (1), circulating a refrigerant and comprising in flow direction of refrigerant: at least one compressor; (2a, 2b, 2c, 2d); at least one condenser (4); at least one expansion device (8, 10); and at least one evaporator (11) for providing a cooling capacity. Cooling system further comprises: subcooling circuit (20) for subcooling refrigerant circulating in refrigeration circuit (1), subcooling circuit (20) being configured to circulate a subcooling refrigerant and comprising at least one subcooler compressor (22, 23); at least one heat exchange means (6, 7) being arranged downstream of said at least one condenser (4) and being configured for heat exchange between refrigeration circuit (1) and subcooling circuit (20), said at least one heat exchange means (6, 7) comprising at least one temperature sensor; and control unit (15) which is configured for controlling at least one compressor (2a, 2b, 2c, 2d) of refrigeration circuit (1) and at least one subcooler compressor (22, 23) of subcooling circuit (20) such that cooling capacity to be provided by at least one evaporator (11) is met, and such that temperature in said at least one heat exchange means (6, 7) measured by at least one temperature sensor is in a predetermined range.

EFFECT: use of invention increases efficiency of refrigeration circuits.

21 cl, 3 dwg