Method and device for refrigerated transport using an indirect injection of a cryogenic liquid and affording a solution for maintaining temperature in the event of extremely low ouside temperatures

A refrigerated truck for transporting heat-sensitive products using refrigeration of the indirect injection type, comprising:

• at least one product storage chamber;
• a reserve of a cryogenic fluid such as liquid nitrogen;
• a main heat exchanger system through which the cryogenic fluid circulates, the main heat exchange system comprising walls across which heat may be exchanged;
• at least one cold blower adapted and configured to bring air inside the chamber into contact with the walls of the main heat exchanger system;
• and
• a heating system adapted and configured to heat the air inside at least one of the chambers, said heating system comprising an agitating blower adapted and configured to agitate the heated air inside said at least one chamber, wherein agitating blower is positioned within said at least one chamber such that it allows the heated air to be blown into an intake side of one or more of the cold-production blowers.

A method for transporting heat-sensitive products in a refrigerated truck of the indirect injection type, the truck being provided with:

• at least one product storage chamber;
• a reserve of a cryogenic fluid;
• a main heat exchanger system adapted and configured to allow the cryogenic fluid to circulate therethrough, the main heat exchange system comprising walls across which heat may be exchanged;
• one or more cold-producing blowers adapted and configured to bring air inside the chamber into contact with the walls;
• and a heating system adapted and configured to heat air inside at least one of the chambers, the heating system comprising an agitating blower for agitating the heated inside said at least one chamber, said method comprising the step of:
• on the basis of acknowledgment of one or more events, blowing heated air into an intake side of one or more of the cold-producing blowers.