Device and Method for Preventing the Drying of Fluid Products in a Dispensing Machine for Such Products

Device ( 10 ) and method for preventing the drying of fluid products in a delivery head ( 12 ) of a machine for dispensing fluid products, wherein the delivery head ( 12 ) is provided with a plurality of delivery nozzles ( 11 ). The device ( 10 ) comprises first elements ( 25 ) to generate a conditioning flow, second elements ( 15, 20, 21 ) to convey the conditioning flow towards a space ( 19 ) underneath the delivery nozzles ( 11 ) and create in said space ( 19 ) an atmosphere different from that of the environment in which the dispensing machine is to be found during use. The delivery nozzles are divided into at least two groups and the space ( 19 ) is divided into at least two distinct conditioning zones ( 19 a , 19 b , 19 c , 19 d), disposed in correspondence with the groups of delivery nozzles ( 11 ). Different atmospheres are created in the conditioning zones ( 19 a , 19 b , 19 c , 19 d), according to the type of fluid product delivered by the corresponding group of delivery nozzles ( 11 ).