초록 ▼

A self-contained refrigeration system utilizes a solenoid valve to meter refrigerant to a thermal process, the thermal process to be maintained at a predetermined temperature. When cooling of the thermal process is not required, refrigerant is recycled without coming into thermal contact with the th

A self-contained refrigeration system utilizes a solenoid valve to meter refrigerant to a thermal process, the thermal process to be maintained at a predetermined temperature. When cooling of the thermal process is not required, refrigerant is recycled without coming into thermal contact with the thermal process by way of a hot gas bypass valve.

대표청구항 ▼

[ What is claimed is:] [1.] A vapor compression refrigeration system comprising in combination:a compressor having an inlet and an outlet;a discharge line connected to the outlet;a recycle line connected to the inlet;a condenser having a condenser outlet, said condenser connected to said discharge l

[ What is claimed is:] [1.] A vapor compression refrigeration system comprising in combination:a compressor having an inlet and an outlet;a discharge line connected to the outlet;a recycle line connected to the inlet;a condenser having a condenser outlet, said condenser connected to said discharge line for receiving compressed refrigerant vapor from said compressor, said condensor being bathed by a condenser cooling medium so as to form a condensate from said vapor at the condenser outlet;a temperature controller selectively activating a solenoid valve in response to a temperature of a thermal process crossing a preselected temperature threshold;said solenoid valve connected to the condenser outlet such that upon activation of said solenoid valve, condensate communication with an evaporator is switched, said evaporator in thermal contact with said thermal process;an expansion valve interposed between said solenoid valve and said evaporator; anda hot gas bypass valve in communication with said discharge line and said recycle line, said hot gas bypass valve activated in response to the temperature of said thermal process being within the bound of the preselected threshold so as to shunt said vapor to said recycle line.