Elijah B. Garner,Stanley R. Borkgren,Cary S. Hubner,Beth A. Wolfs,Michael E. Frasier,Joseph W. Migliorini
申请号：
US15888868
公开号：
US20190239425A1
申请日:
2018.02.05
申请国别(地区):
US
年份:
2019
代理人:
摘要：
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.
