ACOUSTIC NOZZLE TO SPRAY FLUIDS Russian patent published in 2009 - IPC F23D11/34 B05B17/06 

FIELD: mechanics.

SUBSTANCE: acoustic nozzle comprises casing accommodating acoustic oscillation generator representing nozzle and pipe to feed unsoldering agent and liquid. The said casing represents cylindrical sleeve with two air feed channels. Note here that rod with air channel is arranged at the centre of casing and aligned with it. Liquid flows out from the nozzle casing via the pipe, air channel and, at least, two opposed holes onto circular area through resonator washer tapered surface. Note here that the angle between the nozzle axis and direction of each jet from inclined holes favorably varies from 55°÷65°. The pipe is arranged perpendicular to the casing axis to be connected with two air feed channels. The casing houses throttling washer with tapered and cylindrical holes and resonator washer, both aligned with the casing axis. Note that the resonator washer has two 1x3 mm-rectangular-section air nozzles, opposite in direction, and 1.5×3×1.5 mm-cavity resonators. The aforesaid washers are interjointed and fastened to the casing with the help of cartridge clips folded in the casing groove. Resonator inner hole diameter d-to-the rod outer surface diameter d₁ ratio varies in the optimum range of d/d₁=0.34÷0.7, while the resonator inner hole diameter d-to-the inclined hole diameter d₂ ratio varies in the optimum range of d/d₂=1.5÷3.0.

EFFECT: hogher efficiency of spraying.

2 cl, 2 dwg