REFRIGERATION CYCLE DEVICE Russian patent published in 2022 - IPC F25B1/00 F25B49/02 F25B41/26 

FIELD: refrigeration engineering.

SUBSTANCE: invention relates to refrigeration engineering. The device for implementing the refrigeration cycle includes the first flow switching valve, including the first-fourth holes, the second flow switching valve and the third flow switching valve, including the fifth-seventh holes, the compressor, the outlet of which is connected to the first hole, the first high-pressure pipe, providing connection between the outlet pipe and the fifth holes, a bypass expansion valve located in the section of the first high pressure pipe, a first outdoor heat exchanger connected to the seventh port of the second flow switch valve, a second outdoor heat exchanger connected to the seventh port of the third flow switch valve, and a controller. The controller is configured to perform a differential pressure guarantee process upon switching of the second flow switching valve or the third flow switching valve. The controller is designed to set the operating frequency of the compressor and set the degree of opening of the bypass expansion valve.

EFFECT: invention ensures operation of the flow switching differential valve under any conditions.

13 cl, 21 dwg