Patent ID: 6499307
Filing Date: 2002-12-31
Classification: F25B

Abstract:
A refrigeration system having refrigerant flowing therethrough, the refrigeration system providing temperature-cooling and humidity-cooling within a chamber and comprising:a compressor having an inlet and an outlet; an evaporator coil in communication with the chamber, the evaporator coil having an input operatively connected to the outlet by an input line and an output operatively connected to the inlet by an output line so as to allow the refrigerant to circulate between the compressor and the evaporator coil; an expansion valve provided in the input line for controlling the flow rate of refrigerant delivered to the input; an evaporator-pressure regulating valve in the output line for maintaining a minimum temperature of the refrigerant within the evaporator coils to prevent moisture from freezing on the evaporator coil during humidity-cooling; a bypass connected with respect to the system for bypassing the evaporator-pressure regulating valve during temperature-cooling; and a sensing structure operatively connected to the expansion valve and positioned on the output line downstream of the evaporator-pressure regulating valve, the sensing structure providing a signal to the expansion valve.