SPRAY TUBE FOR DRIP IRRIGATION Russian patent published in 2009 - IPC A01G25/02 

FIELD: agriculture.

SUBSTANCE: drip tube consists of a water supply channel, a main sprayer, a secondary sprayer, connectives, water input channels and drainage outlets. The main and the secondary sprayers are represented by zigzag-shaped labyrinths. The main and the secondary sprayers are hydraulically coupled via the connectives. Each zigzag-shaped labyrinths is a variable clear opening channel. Shape of one of the continuous lateral side walls is described by Equation y=arc cos (cos x), where y and x are the Cartesian coordinate system applicate and absciss accordingly. Shape of the opposite wall is described by Equation y=arc sin (sin x). Within the channel restricted sections the walls are rounded off.

EFFECT: uniform water distribution with the both sprayers along the spray tube.

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