SURFACE BROADCAST SOWING DEVICE Russian patent published in 2009 - IPC A01C7/00 

FIELD: agriculture.

SUBSTANCE: device includes flow conditioners in form of nozzles, connected to flexible drill tubes of a sowing machine. Under the nozzles there are reflectors for scattering seeds across the path of the sowing machine. The reflectors are made in form of sectors with a cylindrical surface, whose convex side closes the nozzles from below. The openings of the nozzles have a square section. On the wall of the nozzle opposite the reflector there is a rectangular window on the entire width of the wall. The lower edge of the window coincides with the lower edge of the cylindrical surface of the reflector. The area of passage between the reflector and the upper edge of the window is equal to the cross sectional area of the opening of the nozzle. The nozzles are placed chequerwise with respect to each other, forming two rows across the path of the sowing machine. Spacing of the nozzles in the rows is twice the width of seed scattering by one reflector. In the upper part of the nozzles on the walls of their openings, there are elements in form of projections with an arbitrary shape and arrangement.

EFFECT: uniform surface broadcast sowing.

3 dwg