Liquid-drop discharge device

摘要

The liquid-drop discharge device is comprised of a float cell (2) provided with a valve (6) and communicating to a liquid storage tank, a liquid discharge means (4) for discharging liquid within the float cell, and a reaction cell (3) provided with a space into which fluid is discharged from the liquid discharge means for collecting the discharged fluid. Air is supplied to the reaction cell for collecting liquid or minute particles. The internal pressure P1 of the liquid storage tank or the float cell and the internal pressure P3 of the reaction cell have the relationship P1 = P3 when the pressures are identical to atmospheric pressure or P1 > P3. Oscillating means (9) apply oscillation to the liquid in the flow path. The entire flow of liquid fibrillated by the oscillating means may be atomized even in the presence of air bubbles in liquid within the flow path so that external force applied to the liquid will not be absorbed by the air bubbles, and atomization caused by sucking at an air-contacting surface of the discharge outlet by the internal pressure of the reaction cell may be continued while maintaining a minute spraying condition. <IMAGE>