PNEUMATIC FEED Russian patent published in 2004 - IPC

FIELD: agricultural engineering; row crop precision seed drills.

SUBSTANCE: proposed pneumatic feed has hopper divided into two parts for two cultures and disk for seeding two cultures. Disk consists of base, cover plate and gasket. Vacuum cutoff is installed between base and cover plate. Said vacuum cutoff changes moment of cutoff of vacuum delivered to cells of cover plate and it is shifted tangentially relative to holes. Slots are made on cover plate from one side of cell cutout of depth from outer radius of cover plate to outer radius of gasket between cell and suction hole. To improve distribution of seeds, cells are arranged relative to beam passing through suction hole opposite to rotation at angle of 0-0.5 of angle between neighbor suction holes.

EFFECT: provision of regulation of relative position of seeds of two cultures of field.

2 dwg