Abstract: A row unit for a seeding machine includes a seed reservoir and a seed meter assembly having a metering member with a seed side facing the seed reservoir and a non-seed side opposite the seed side. The metering member is operable to selectively move seeds from the seed reservoir. A pump provides a pressure differential between the seed side and the non-seed side for adhering the seeds to the metering member. A conveyor has an inlet for receiving the seeds and an outlet configured to discharge the seeds from the seeding machine. The conveyor includes a belt movable from the inlet to the outlet. A pneumatic seed displacer includes a nozzle disposed adjacent the metering member for concentrating air. The nozzle is configured to eject the air towards the metering member for directing the seeds from the metering member to the conveyor.

Abstract: A row unit for a seeding machine includes a seed reservoir and a seed meter assembly having a metering member with a seed side facing the seed reservoir and a non-seed side opposite the seed side. The metering member is operable to selectively move seeds from the seed reservoir. A pump provides a pressure differential between the seed side and the non-seed side for adhering the seeds to the metering member. A conveyor has an inlet for receiving the seeds and an outlet configured to discharge the seeds from the seeding machine. The conveyor includes a belt movable from the inlet to the outlet. A pneumatic seed displacer includes a nozzle disposed adjacent the metering member for concentrating air. The nozzle is configured to eject the air towards the metering member for directing the seeds from the metering member to the conveyor.

Abstract: A row unit for a seeding machine includes a seed reservoir and a seed meter having a metering member with a seed side facing the seed reservoir, a non-seed side opposite the seed side, and a plurality of apertures. The seed meter is operable by pressure differential between the non-seed side and the seed side to adhere seeds to the seed side and move seeds from the seed reservoir. A conduit has a venturi with a throat disposed adjacent the metering member. The throat presents an opening directed toward the seed side and the plurality of apertures. The opening is configured to receive a seed adhered to one aperture of the plurality of apertures. An air pressure source is configured to provide greater than atmospheric air pressure on the non-seed side such that during operation of the row unit an air stream passes through the one aperture toward the opening.

Abstract: A row unit for a seeding machine includes a seed reservoir and a seed meter having a metering member configured to rotate about an axis. The metering member has a seed side facing the seed reservoir, a non-seed side opposite the seed side, and a plurality of apertures. The axis is normal to a surface of the seed side. The seed meter is operable by pressure differential between the non-seed side and the seed side to adhere seeds to the seed side and move seeds from the seed reservoir. The row unit also includes a positive pressure air source and an air outlet fluidly coupled to the positive pressure air source. The air outlet is disposed on the seed side and aimed to discharge an air stream towards one aperture of the plurality of apertures. The dischargeable air stream has a directional component parallel to the axis.

Abstract: A work vehicle includes a frame structure and a plurality of row units with a row unit support structure attached to the frame structure. The row units also include a meter housing with a housing member and a removable cover. The housing member is attached to the row unit support structure and houses a metering element. The metering element is configured to singulate a commodity and meter the commodity from the meter housing. The row unit further includes an air pressure device configured to generate an air pressure differential across the metering element to retain the commodity on the metering element. The air pressure device is fixed relative to the row unit support structure. The air pressure device is configured to remain fixed relative to the row unit support structure as the cover is removed and reattached.

Abstract: A row unit for a seeding machine includes a seed reservoir and a seed meter having a metering member with a seed side facing the seed reservoir, a non-seed side opposite the seed side, and a plurality of apertures. The seed meter is operable by pressure differential between the non-seed side and the seed side to adhere seeds to the seed side and move seeds from the seed reservoir. A conduit has a venturi with a throat disposed adjacent the metering member. The throat presents an opening directed toward the seed side and the plurality of apertures. The opening is configured to receive a seed adhered to one aperture of the plurality of apertures. An air pressure source is configured to provide greater than atmospheric air pressure on the non-seed side such that during operation of the row unit an air stream passes through the one aperture toward the opening.

Abstract: A row unit for a seeding machine includes a seed reservoir and a seed meter having a metering member configured to rotate about an axis. The metering member has a seed side facing the seed reservoir, a non-seed side opposite the seed side, and a plurality of apertures. The axis is normal to a surface of the seed side. The seed meter is operable by pressure differential between the non-seed side and the seed side to adhere seeds to the seed side and move seeds from the seed reservoir. The row unit also includes a positive pressure air source and an air outlet fluidly coupled to the positive pressure air source. The air outlet is disposed on the seed side and aimed to discharge an air stream towards one aperture of the plurality of apertures. The dischargeable air stream has a directional component parallel to the axis.

Abstract: A work vehicle includes a frame structure and a plurality of row units with a row unit support structure attached to the frame structure. The row units also include a meter housing with a housing member and a removable cover. The housing member is attached to the row unit support structure and houses a metering element. The metering element is configured to singulate a commodity and meter the commodity from the meter housing. The row unit further includes an air pressure device configured to generate an air pressure differential across the metering element to retain the commodity on the metering element. The air pressure device is fixed relative to the row unit support structure. The air pressure device is configured to remain fixed relative to the row unit support structure as the cover is removed and reattached.

Abstract: A row unit for a seeding machine includes a seed reservoir and a seed meter assembly having a metering member with a seed side facing the seed reservoir and a non-seed side opposite the seed side. The metering member is operable to selectively move seeds from the seed reservoir. A pump provides a pressure differential between the seed side and the non-seed side for adhering the seeds to the metering member. A conveyor has an inlet for receiving the seeds and an outlet configured to discharge the seeds from the seeding machine. The conveyor includes a belt movable from the inlet to the outlet. A pneumatic seed displacer includes a nozzle disposed adjacent the metering member for concentrating air. The nozzle is configured to eject the air towards the metering member for directing the seeds from the metering member to the conveyor.