Patent ID: 6775998
Filing Date: 2004-08-17
Classification: F25B,F25D

Abstract:
A refrigerating unit comprising:(a) compressor; (b) condenser; (c) a plurality of evaporators connected in series; (d) a capillary tube disposed between said condenser and each of said plurality of evaporators; (e) a coolant flow rate adjustable unit disposed between respective evaporators of said plurality of evaporators; (f) a bypass circuit bypassing it least one evaporator of said plurality of evaporators; and (g) a coolant, wherein said bypass circuit is disposed in parallel with said at least one evaporator and said coolant flow rate adjustable unit, said compressor, condenser, evaporator, capillary tube, coolant flow rate adjustable unit, bypass circuit and coolant constitute a refrigeration cycle, said coolant circulates in said refrigeration cycle, said coolant flow rate adjustable unit controls variably respective evaporation temperatures of said plurality of evaporators, and when cooling of said at least one evaporator disposed in parallel with said bypass circuit is not needed, said coolant flow rate adjustable unit is totally closed, thereby allowing said coolant to be channeled to said bypass circuit only.