ELECTROSTATIC ATTRACTION TYPE FLUID DELIVERY DEVICE

摘要

When the diameter of a nozzle hole in a fluid delivery head is formed as a microdiameter of 0.01-25mum, the micronization of nozzles makes it possible to lower the drive pressure for delivery. Further, by forming the outer wall surface of the nozzle with an electrode for applying drive voltage to the delivered fluid, the distance between the electrode and the nozzle hole is shortened. Thereby, in an electrostatic attraction type fluid delivery device, the micronization of nozzles and the lowering of the drive voltage are made compatible with each other and it is made possible to improve the delivery limit frequency and to improve the selectability of delivered materials having higher resistance values.