Patent ID: 7171818
Filing Date: 2007-02-06
Classification: F25B

Abstract:
1. A system for controlling a temperature of refrigerant in an air conditioner, comprising: at least one indoor unit; at least one outdoor unit; a high-pressure pipe and a low-pressure pipe which connect the at least one indoor unit and the at least one outdoor unit; and a refrigerant temperature control unit coupled to the high-pressure pipe and the low-pressure pipe, which performs a heat exchange with respect to flowing refrigerants by coupling an inner pipe to an outer pipe, the inner pipe passing through the outer pipe, the refrigerant temperature control unit installed in one side of one of the high-pressure pipe and the low-pressure pipe, to sense one of a supercooling degree and a superheating degree and to increase or decrease a refrigerant inlet flow to the outer pipe through a bypass passage, which couples the outer pipe to a specific pipe, so as to make the sensed supercooling or superheating degree equal to a target value.