초록 ▼

A refrigerated transport having an insulated enclosure and including a cryogen reservoir, e.g., high-pressure liquid cryogen or solid CO2. A plurality of thermosyphons associated with the walls and floor of the enclosure adjacent the interior skin intercept heat attempting to enter the enclosure. An

A refrigerated transport having an insulated enclosure and including a cryogen reservoir, e.g., high-pressure liquid cryogen or solid CO2. A plurality of thermosyphons associated with the walls and floor of the enclosure adjacent the interior skin intercept heat attempting to enter the enclosure. An intermediate heat sink draws the intercepted heat from the upper portions of the thermosyphons. The temperature of the heat sink is thermostatically controlled in a manner that the rate at which heat from the heat sink is absorbed by the cryogen is regulated to maintain the heat sink within a desired temperature range such that the thermosyphons will in turn maintain the enclosure and its product load at the desired subambient storage temperature.

대표청구항 ▼

A refrigerated transport comprising means defining an insulated enclosure including a plurality of walls and a floor for holding a quantity of product at a storage temperature below ambient temperature, and including opening means for inserting and removing said product, means for holding a cryogen

A refrigerated transport comprising means defining an insulated enclosure including a plurality of walls and a floor for holding a quantity of product at a storage temperature below ambient temperature, and including opening means for inserting and removing said product, means for holding a cryogen reservoir, thermosyphon means in heat-transfer relationship with said walls and floor containing a vaporizable refrigerant which exhibits liquid-vapor two-phase form at about said storage temperature and at an equilibrium pressure not greater than 500 psia., intermediate heat sink means in heat-transfer relationship with upper portions of said thermosyphon means, and means for controlling the transfer of heat from said intermediate heat sink means to said cryogen to maintain said heat sink means at a desired temperature below said storage temperature but substantially above the temperature of said cryogen reservoir, whereby heat attempting to enter said enclosure is intercepted by said thermosyphon means, transferred to said intermediate heat sink and ultimately absorbed by said cryogen.