LAir Liquide Societe Anonyme pour lEtude et lExploitation des Procedes Georges Claude;L'Air Liquide Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
The injection device (3) according to the invention, intended to be attachedto the wall of the bottom of a container containing a product to be cooled in bulk,comprises a hollow cylindrical body in which a valve (17) forced by a spring (19)is inserted, a through-channel (18) appreciably parallel to said valve intendedto be fed by pressurized cryogenic fluid, one end of said through-channel beingconnected to the cryogenic fluid feed system and the opposite end opening intothe seat (13) of the valve.