PNEUMATIC SEEDING APPARATUS Russian patent published in 2016 - IPC A01C7/04 

FIELD: agriculture; machine building.

SUBSTANCE: pneumatic seeding apparatus comprises hopper, case with seed chamber, drive shaft, excess pressure channel, two sowing discs with dosing elements two intake devices, two covers and two gaskets. Dosing elements are fixed on opposite ends of drive shaft, while gaskets are arranged at respective sowing disks. Wherein dosing openings in sowing disks are arranged in rows concentrically to the axis of rotation with a step of no less than maximum size of seeds of crop expected to sow. Centers of dosing elements of adjacent rows are arranged on radial lines at a distance from each other of at least two maximum seed sizes of crop expected to sow. Besides, each intake device consists of parallel located branch pipes of rectangular section, number of which is equal to number of rows of dosing elements of sowing disc. Intake devices are arranged at an acute angle to vertical, while receiving openings of branch pipes are located in horizontal plane passing through the axis of rotation of disks.

EFFECT: invention enables to ensure higher quality of seeding due to uniform single-piece feed of seeds and possibility to sow seeds in several rows simultaneously.

1 cl, 1 dwg