Droplet break-up device

B - Operations – Transporting – 41 – J

Patent

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Details

B41J 2/03 (2006.01)

Patent

CA 2705333

The invention relates to a droplet break up device comprising: a chamber (2) for containing a printing liquid (3) comprising a bottom plate (4); a pump for pressurizing the printing liquid; an outlet channel (5) having a central axis, provided in said chamber for ejecting the printing liquid; and an actuator (7) for breaking up a fluid jetted out of the -outlet channel. The actuator is provided around the outlet channel, arranged to symmetrically impart a pressure pulse central to the outlet channel axis. Accordingly, smaller droplets can be delivered at higher frequencies.

L'invention porte sur un dispositif de fractionnement de gouttelettes, comprenant : une chambre (2) pour contenir un liquide d'impression (3) comprenant une plaque inférieure (4); une pompe pour mettre sous pression le liquide d'impression; un canal de sortie (5) comportant un axe central, disposé dans ladite chambre pour éjecter le liquide d'impression; et un actionneur (7) pour fractionner un fluide éjecté hors du canal de sortie. L'actionneur est disposé autour du canal de sortie et agencé de façon à communiquer de façon symétrique une impulsion de pression au centre de l'axe de canal de sortie. Par conséquent, de plus petites gouttelettes peuvent être débitées à des fréquences plus élevées.

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