Patent ID: 9056453
Filing Date: 2015-06-16
Classification: B05B,B41J

Abstract:
1. A droplet break up device comprising: a chamber for containing a pressurized printing liquid; at least one outlet channel, provided in said chamber for ejecting the pressurized printing liquid out of the outlet channel as a fluid jet; and an actuator for breaking up the fluid jet; wherein the actuator comprises a revolving member arranged opposite the at least one outlet channel, the revolving member comprising a surface deformation shaped to provide a pressure pulse near the at least one outlet channel; wherein the chamber comprises a nozzle plate secured to a wall of the chamber and supported by a support plate; wherein the at least one outlet channel is provided in the nozzle plate, and wherein the at least one outlet channel and the surface deformation are dimensioned so as to break up the fluid jet into droplets ejected from the outlet channel by pressure pulses transferred into the at least one outlet channel.