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Integrated implement downforce control systems, methods, and apparatus
专利权人:
PRECISION PLANTING LLC
发明人:
Jason Stoller,Kent Levy,Todd Swanson
申请号:
US14417145
公开号:
US09879702B2
申请日:
2013.07.25
申请国别(地区):
US
年份:
2018
代理人:
摘要:
A downforce controller for an agricultural implement having a double-acting hydraulic cylinder. The cylinder is configured to be coupled to an agricultural row unit and an agricultural toolbar for transmitting a net downforce between the agricultural toolbar and the agricultural row unit. A first pressure in the first chamber of the cylinder and a second pressure in the second chamber of the cylinder having counteracting effects on the net downforce. A manifold coupled to the cylinder is in fluid communication with the first chamber. A pressure control valve supported by the manifold is in fluid communication with the manifold and the first chamber.
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