COMPRESSOR REFRIGERATION UNIT Russian patent published in 2023 - IPC F25B1/00 F25B49/02 

FIELD: refrigeration systems.

SUBSTANCE: compressor refrigeration unit for the refrigeration system includes at least two reciprocating compressors operating in parallel between a common low pressure port and a common high pressure port. In a compressor refrigeration system, the total mass flow rate of the compressor refrigeration system is settable in that for at least one of the reciprocating compressors its mass flow rate is settable by changing the motor speed by means of a frequency converter for the motor, and that for at least one of the reciprocating compressors its mass flow is set by selective actuation of the cylinders. For the compressor refrigeration system, an operating state control unit is provided that controls or regulates the total mass flow by setting cylinder selective firing and rotational selective firing based on the refrigeration system power request signal transmitted to it.

EFFECT: providing more flexibility to provide the required total mass flow rate while still providing a high maximum mass flow rate.

32 cl, 21 dwg