초록 ▼

A cooling system for an enclosure comprising an evaporator containing cryogen in liquid and gaseous phases, a vent coupled to the evaporator to release excess pressure therefrom as a result of heat absorbed by the cryogen, and a controller for the vent to produce a generally cyclical pressure variat

A cooling system for an enclosure comprising an evaporator containing cryogen in liquid and gaseous phases, a vent coupled to the evaporator to release excess pressure therefrom as a result of heat absorbed by the cryogen, and a controller for the vent to produce a generally cyclical pressure variation in the evaporator having an amplitude selected in accordance with the desired heat absorption capacity of the cooling system.

대표청구항 ▼

A cooling system for an insulated enclosure, comprising, an evaporator thermally coupled to said enclosure, said evaporator containing cryogen in liquid and gaseous phases, heat from said enclosure transferred to said evaporator causing cryogen therein to convert from said liquid to said gaseous pha

A cooling system for an insulated enclosure, comprising, an evaporator thermally coupled to said enclosure, said evaporator containing cryogen in liquid and gaseous phases, heat from said enclosure transferred to said evaporator causing cryogen therein to convert from said liquid to said gaseous phase which increases the pressure in said evaporator; vent means coupled to said evaporator, said vent means being capable to assume opened and closed conditions, in said opened condition said vent means releasing gaseous cryogen from said evaporator to reduce the pressure therein, in said closed condition said vent means preventing release of cryogen from said evaporator; control means for commanding said vent means to assume said opened and closed conditions at respective and predetermined vent opening and closing pressures of cryogen in said evaporator, said control means constituting means for varying the pressure differential defined between said vent opening and closing pressures of cryogen in accordance with the heat absorption rate of said cooling system for regulating the rate of cryogen discharge from said evaporator in accordance with said heat absorption rate; ventilation means for creating an air current in said enclosure, including: (a) duct means for conveying air; and (b) gas powered fan means in said duct means to propel air therein, said vent means being coupled to said fan means for supplying thereto operating gaseous cryogen.