PNEUMATIC SEEDING INIT Russian patent published in 2005 - IPC

FIELD: agricultural engineering, in particular, equipment for machines adapted for sowing of various farm crop seeds.

SUBSTANCE: seeding unit has hopper, casing, seed chamber and pressure chamber. Vertical disk with dosing members is positioned between seed chamber and pressure chamber. Dosing members have suction openings. Inlet window, excessive pressure channel and pipe of intake device are arranged in succession within casing around circumferences concentric with respect to circle of arrangement of dosing member centers. Upper edge of inlet window is positioned above horizontal plane extending through axis of rotation of seeding disk at central angle of from 0° to 40°.

EFFECT: improved quality of sowing seeds by single-seed feeding method and increased rotational velocity of seeding disk.

2 dwg