PNEUMATIC SEED-FEEDING APPARATUS Russian patent published in 2008 - IPC A01C7/04 

FIELD: agriculture.

SUBSTANCE: pneumatic seed-feeding apparatus consists of hull, excessive pressure nozzle, intaking device and seed-feeding disc. Disc has a leading edge with coefficient of friction over seeds more than 0.7 and it is fixed on the driving shaft in the circular groove in the hull. Diameter and depth of the groove are greater than the diameter and thickness of the seed-feeding disc by value, not exceeding minimal size of the seed. Driving shaft is set eccentrically to the circular groove of the hull. Shaft is vertically dislocated in the hull, so that maximal gap between forming surfaces of the seed-feeding disc and ring slotting of the hull lies in the lower point of circular groove. In the upper point of circular groove forming surfaces of the seed-feeding disc and circular groove of the hull touch each other.

EFFECT: ensures high quality of seeding at high speed of planting.

2 dwg