DEVICE FOR GENERATING SERIES OF MOVING LIQUID DROPS Russian patent published in 2017 - IPC G01F11/00 

FIELD: manufacturing technology.

SUBSTANCE: invention relates to investigation of properties of liquids, specifically to dispensers with external control for repeated measurement and dispensing preset volumes of liquids, and can be used in scientific researches in hydrodynamics, chemistry, biology, medicine etc. Device for generating a series of moving liquid droplets comprises a body in form of a rectangular parallelepiped, ribs of which are made of interconnected corners. Inside body there is a frame in form of a rectangular parallelepiped, ribs of which are made of interconnected racks with guide rollers installed on them. Inside frame there is a vertically fixed rectangular box with open top and bottom ends. On opposite sides of box along axis of movement of frame there are identical n through holes arranged vertically in a row, to accommodate hollow needles, ends of which through connecting pipes are connected with a compressor. Opposite sharp ends of needles on frame there is a first metal plate. Inside body on outer side of frame opposite first plate there is a second metal plate with guide rollers installed thereon. In centre of second plate is fixed a rod with possibility of back-and-forth movement in hole of third plate and first electromagnet, vertically mounted inside body, wherein first electromagnet is arranged between first and third plates. Bulge on end of rod is directed towards first plate. On outer side of second plate on inner side of body is fixed a second electromagnet. Second and third plates are connected by springs. One contact of each electromagnet is connected to a power source, which is connected to first and second switches. First switch is connected to other contact of first electromagnet. Second switch is connected to second contact of second electromagnet.

EFFECT: generation of size-identical liquid droplets moving in series at a fixed distance from each other.

1 cl, 2 dwg