AIR FORCE SOWING UNIT Russian patent published in 2010 - IPC A01C7/04 

FIELD: agriculture.

SUBSTANCE: sowing unit comprises body, seed and discharge chambers, sowing disc with batching elements arranged along end plane. Each of batching elements has cell and through hole for suction of seeds. Unit also has channel of overpressure, which is connected to discharge chamber and is directed towards side of sowing disc end plane, and intake device. Intake device comprises pneumatic seed duct arranged in the form of tube, one end of which is located in seed chamber and is directed towards batching elements. Overpressure channel is arranged around pneumatic seed duct.

EFFECT: invention makes it possible to increase quality of single-grain sowing of seeds.

4 dwg