发明名称 Agricultural implement with combined down force and depth control
摘要 An agricultural implement system is provided that includes a down force cylinder configured to apply a downward force to a row unit, and a depth control cylinder configured to vary a penetration depth of a ground engaging tool of the row unit. The agricultural implement system also includes a valve assembly in fluid communication with the down force cylinder and the depth control cylinder. The valve assembly is configured to automatically adjust the downward force by varying fluid pressure within the down force cylinder based on fluid pressure within the depth control cylinder.
申请公布号 US8522889(B2) 申请公布日期 2013.09.03
申请号 US20100870949 申请日期 2010.08.30
申请人 ADAMS BRIAN T.;WENDTE KEITH W.;CNH AMERICA LLC 发明人 ADAMS BRIAN T.;WENDTE KEITH W.
分类号 A01B33/12;A01B39/08;A01B39/18;A01B49/06;A01B61/04;A01B63/22;A01B63/32;E02F9/24 主分类号 A01B33/12
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