초록 ▼

A non-compression cascade refrigeration system 30 for refrigerating a closed refrigerated space includes a cascade condenser 34 in heat exchange relationship with a primary evaporator 24, a cascade evaporator 28 positioned in the refrigerated space 40 and a liquid and vapor separator 42. A first coo

A non-compression cascade refrigeration system 30 for refrigerating a closed refrigerated space includes a cascade condenser 34 in heat exchange relationship with a primary evaporator 24, a cascade evaporator 28 positioned in the refrigerated space 40 and a liquid and vapor separator 42. A first coolant delivery conduit 44 delivers liquid coolant from the cascade condenser 34 to the separator 42 which then provides the coolant through a second coolant delivery conduit 46 to the cascade evaporator 28 for cooling the refrigerated space 40. A first coolant return conduit 50 returns the coolant from the cascade evaporator 28 to the separator 42 where the return coolant is separated into liquid and gaseous coolant, such that the liquid coolant is directed to the second delivery conduit 46 for reuse in the cascade evaporator 28 and the gaseous coolant is directed to a second coolant return conduit 52 and returned to the cascade condenser 34.

대표청구항 ▼

[We claim:] [1.]a non-compression cascade refrigeration system in heat exchange relationship with said primary refrigeration system, said cascade refrigeration system comprising:a cascade condenser in heat exchange relationship with said primary evaporator;a cascade evaporator positioned in the refr

[We claim:] [1.]a non-compression cascade refrigeration system in heat exchange relationship with said primary refrigeration system, said cascade refrigeration system comprising:a cascade condenser in heat exchange relationship with said primary evaporator;a cascade evaporator positioned in the refrigerated space;a liquid and vapor separator;a first coolant delivery conduit constructed and arranged to deliver coolant from said cascade condenser to said separator;a second coolant delivery conduit constructed and arranged to deliver coolant from said separator to said cascade evaporator in the refrigerated space;a first coolant return conduit constructed and arranged to return coolant from said cascade evaporator to said separator;a second coolant return conduit constructed and arranged to return coolant from said separator to said cascade condensing chamber; andsaid separator including means for separating liquid coolant from gaseous coolant and directing gaseous coolant to said second coolant return conduit and to said cascade condenser and directing liquid coolant to said second delivery conduit and to said cascade evaporator.