PNEUMATIC SEEDING UNIT Russian patent published in 2002 - IPC

FIELD: agricultural engineering. SUBSTANCE: seeding unit has vacuumizer arranged between two seeding disks. Number of openings in one seeding disk is multiple the number of openings in other seeding disk. One seeding disk has uniformly distributed openings and other seeding disk has openings arranged in groups. Seeding disks are mounted on shaft so that groups of openings in one seeding disk are shifted in phase and arranged in symmetry between openings of other seeding disk. EFFECT: increased seeding quality, wider operational capabilities by providing simultaneous seeding of different farm crops and simplified construction. 5 dwg