Cooling system for storing and cooling products during transport on a refrigerated transport vehicle

A cooling system for storing and cooling products during transport comprising:

• a cooling chamber for receiving goods to be cooled;
• and
• a cooling unit;
• wherein said cooling unit has a carbon dioxide storage compartment equipped with thermally insulated walls and a supply line for feeding liquid carbon dioxide into the carbon dioxide storage compartment, said supply line opening out inside the carbon dioxide storage compartment at a nozzle and, at its end portion opposite to the nozzle, being configured to be detachably connected to a source of liquid carbon dioxide;
• wherein said cooling unit further has an exhaust pipe for removing gaseous carbon dioxide from the carbon dioxide storage compartment and a gas-permeable but particle-impermeable filter for preventing carbon dioxide snow particles in the carbon dioxide storage compartment from entering the exhaust pipe, wherein the filter is located vertically between the nozzle and the exhaust pipe, the exhaust pipe is located above the filter, and the nozzle is located below the filter;
• wherein said cooling unit further has an air cooling compartment, comprising at least one cooling channel which has an inlet opening into which a cooling air supply line opens which is flow-connected to the cooling chamber for feeding cooling air from the cooling chamber into the at least one cooling channel and an outlet opening at which a cooling air outlet line opens which is flow-connected to the cooling chamber for feeding cooling air from the at least one cooling channel into the cooling chamber;
• and
• wherein said cooling unit further has a heat exchanger surface on which the carbon dioxide storage compartment and the at least one cooling channel are thermally conductive but gas-tightly connected to each other.

A cooling system for storing and cooling products during transport comprising:

• a cooling chamber for receiving goods to be cooled;
• and
• a cooling unit;
• wherein said cooling unit has a carbon dioxide storage compartment equipped with thermally insulated walls and a supply line for feeding liquid carbon dioxide into the carbon dioxide storage compartment, said supply line opening out inside the carbon dioxide storage compartment at a nozzle and, at its end portion opposite to the nozzle, being configured to be detachably connected to a source of liquid carbon dioxide;
• wherein said cooling unit further has an exhaust pipe for removing gaseous carbon dioxide from the carbon dioxide storage compartment and a gas-permeable but particle-impermeable filter for preventing carbon dioxide snow particles in the carbon dioxide storage compartment from entering the exhaust pipe;
• wherein said cooling unit further has an air cooling compartment, comprising at least one cooling channel which has an inlet opening into which a cooling air supply line opens which is flow-connected to the cooling chamber for feeding cooling air from the cooling chamber into the at least one cooling channel and an outlet opening at which a cooling air outlet line opens which is flow-connected to the cooling chamber for feeding cooling air from the at least one cooling channel into the cooling chamber;
• wherein said cooling unit further has a heat exchanger surface on which the carbon dioxide storage compartment and the at least one cooling channel are thermally conductive but gas-tightly connected to each other;
• and
• wherein the exhaust pipe is equipped with means for maintaining an overpressure in the carbon dioxide storage compartment and the means for maintaining the overpressure is separate from the filter.