Method and device for transporting refrigerated using an indirect injection of a cryogenic liquid and improving the distribution of the cryogen in heat exchangers

A method and a heat-sensitive product transport device in a refrigerated truck, of the indirect injection type of a cryogenic fluid in a heat exchanger system (HX1, HX2, HXN ... ...) to the internal (or ) chamber (s) for storing products, where it has a common rail (1) to all the exchangers of the heat exchanger system, upstream of the heat exchanger system, common distributor which is supplied with cryogen from a supply of cryogenic fluid; and being characterized in that: - it takes up (3) in the common rail, in the liquid phase situated at the bottom of this distributor to go supplying the liquid heat exchangers of the heat exchanger system; - is withdrawn (4) in the common rail, in the gas phase located in the upper part of the dispenser, to go supplying this gas phase an additional heat exchanger (30) internal to one of said storage chambers.