Fluid sprinkling – spraying – and diffusing – Processes – Of discharge modification of flow varying
Patent
1991-07-24
1993-06-15
Kashnikow, Andres
Fluid sprinkling, spraying, and diffusing
Processes
Of discharge modification of flow varying
239296, 239434, 118300, 427310, 427600, B05B 1706, B05B 1300, B05B 1504
Patent
active
052191206
ABSTRACT:
An apparatus and method generates a stream of atomized fluid for applying a substantially uniform coating of atomized fluid to a surface, such as the application of a liquid flux coating to circuit boards. An ultrasonic atomizer discharges a conical spray pattern of atomized fluid, and an air horn discharges a stream of air intersecting the path of the atomized stream of fluid for entraining the atomized stream of fluid within the stream of air. Two air jets are located on either side of the ultrasonic atomizer relative to each other, and each discharges a low pressure jet of air in a direction substantially opposite to the direction of the other. Each jet of air in turn shears the conical spray pattern of atomized fluid into a respective plume of atomized fluid. The two plumes of atomized fluid are then entrained into the moving sheet of air discharged by the air horn, thus forming a substantially uniform linear dispersion of atomized fluid for coating a surface with the atomized fluid.
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Ehrenberg Scott G.
Wohlford Elizabeth J.
Kashnikow Andres
Sono-Tek Corporation
Trainor Christopher G.
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