Discma Ag

Massimo Nascimbeni

Denis Gillet

Michele Ollari

Roberto Zoni

An injection device for injecting a pressurized liquid into a preform and forming a container. The injection device including a piston device having a piston body and a piston head arranged to reciprocate in the piston body and to fluidly isolate an inner chamber of the piston device. The piston body having a recess portion defining a location where the piston head is not in liquid tight contact with the piston body such that liquid can flow from the inner chamber to a part of the piston body on an opposite the inner chamber. The injection device being arranged for driving the piston head in the recess portion in a clean-in-place (CIP) configuration.

Injection device for a forming and filling station adapted for CIP

A method for simultaneously forming and filling a container by injecting a pressurized liquid in a preform. The method includes placing the preform in a mold and injecting the pressurized liquid into the preform such that the liquid expands the preform and urges the wall of the preform against the wall of the molding cavity forming the preform into a container and the container is filled with liquid. A swirl imparting element extends in the injection flow and imparts a swirl flow on the pressurized liquid such that the pressurized liquid applies a centrifugal force on the wall of the preform during forming and filling of the preform, thereby promoting a radial expansion of the preform in radial planes substantially perpendicular to the preform axis.

Method for forming and filling a container using a liquid having a swirl flow

An injection device for injecting a pressurized liquid into the preform. The injection device includes a piston device having a piston body with a piston head arranged to reciprocate therein. The piston head cooperates with a sealing portion of the piston body to fluidicly isolate an inner chamber of the piston device. The piston body being in fluidic communication with a liquid source for admitting liquid into the inner chamber. The piston body including at least two outlet ducts for delivering pressurized liquid to the injection head. Each outlet duct opening defining an outlet port in a wall of the inner chamber. Each outlet port being centered on an outlet port center, wherein all the outlet port centers extend in the same radial planes of the inner chamber, are at the same distance from the piston axis and are arranged angularly in a regular manner around the piston axis.

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Octeville sur Mer, France

Massimo Nascimbeni