Patent ID: 11906216
Assignee: HANON SYSTEMS
Field: Transport (Mechanical engineering)
Classification: CPC F  B | IPC B  F

Claim 5:
6. The system of claim 5, wherein the refrigerant flow controller includes:
variable expansion valves respectively installed on the upstream side of the outdoor heat exchanger and the low-pressure side heat exchangers to permit or block introduction of the refrigerant into the outdoor heat exchanger and the low-pressure side heat exchangers;
an on/off valve installed in the branch refrigerant line to permit or block a refrigerant flow in a parallel structure of the low-pressure side heat exchangers of the branch refrigerant line with respect to the outdoor heat exchanger of the refrigerant circulation line;
a refrigerant flow control valve installed in the refrigerant circulation line to permit or block a refrigerant flow in a series structure of the outdoor heat exchanger of the refrigerant circulation line and the low-pressure side heat exchangers of the branch refrigerant line; and
a controller configured to control the variable expansion valves, the on/off valve and the refrigerant flow control valve so that the refrigerant flow between the outdoor heat exchanger of the refrigerant circulation line and the low-pressure side heat exchangers of the branch refrigerant line is controlled in series or in parallel depending on the air conditioning mode.