AIR CONDITIONER AND REFRIGERATION SYSTEM THEREOF Russian patent published in 2020 - IPC F25B41/04 F25B13/00 F25B49/02 

FIELD: refrigerating equipment.

SUBSTANCE: invention relates to the refrigeration equipment. Refrigerating system (100) comprises compressor (1), four-way reversing valve (2), external heat exchanger (3), internal heat exchanger (4), first throttling device (4) and flow control unit (6). Flow control device (6) is connected in parallel to first throttling device (4), and flow control unit (6) comprises two-position valve (61), liquid storage device (62) and second throttling device (63) connected in series, wherein two-position valve (61) is connected between first throttling device (4) and second external port (32), and second throttling device (63) is connected between first throttling device (4) and second internal joint (52). Two-position valve comprises one-way solenoid valve configured to open and close pipeline, in which one-way solenoid valve is located, when refrigerating system is in cooling cycle, and made with possibility of being in normal state when cooling system is in heating cycle. One-way valve is connected in series with the one-way solenoid valve and is connected unidirectionally from the second external port towards the second internal joint.

EFFECT: technical result is providing adjustment of coolant flow rate under various operating conditions.

7 cl, 1 dwg