AIR OPERATED SEEDER UNIT Russian patent published in 2014 - IPC A01C7/04 

FIELD: machine building.

SUBSTANCE: air operated seeder unit comprises housing, overpressure nozzle and seeder disc. Working edge of seeder disc features the factor of friction of seed over 0.7. Housing top part on the side abutting on seeder disc accommodates proportioning disc to run therein. Working surface of said proportioning disc features friction factor over 0.7. Seed feed duct is secured at housing flat surface on the side abutting on seeder disc, duct cross-section features the shape of rectangle with sides larger than one and a half of the seed maximum size. Seed duct pipe in arranged in the housing so that its top edge is located above seed level in seed chamber.

EFFECT: higher quality of seeding.

1 dwg