发明名称 |
Self-leveling and height control hydraulic system |
摘要 |
An implement having a rotary flow divider controlling fluid to and from at least two independent hydraulic rams for raising and lowering the implement in a level manner. A counter totals the revolutions of the flow divider and actuates an electrical circuit which controls solenoid valves to stop the implement at the proper height.
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申请公布号 |
US4337959(A) |
申请公布日期 |
1982.07.06 |
申请号 |
US19800156896 |
申请日期 |
1980.06.05 |
申请人 |
INTERNATIONAL HARVESTER CO. |
发明人 |
BETTIN, LEONARD A.;SWANSON, WILLIAM C. |
分类号 |
A01B63/22;(IPC1-7):A01B63/22 |
主分类号 |
A01B63/22 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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