| 发明名称 |
All hydraulic motor grader circuitry |
| 摘要 |
A closed center control valve for double acting motors having an inlet passage and a pair of control passages is provided with pre-sized restrictions in the control passages to control the flow rate to the motor so that a pre-selected velocity of movement of the motor is achieved.
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| 申请公布号 |
US4033236(A) |
申请公布日期 |
1977.07.05 |
| 申请号 |
US19740652939 |
申请日期 |
1974.02.04 |
| 申请人 |
CATERPILLAR TRACTOR CO. |
发明人 |
JOHNSON, HOWARD L.;JUNCK, JOHN A. |
| 分类号 |
F15B13/04;(IPC1-7):F15B11/08 |
主分类号 |
F15B13/04 |
| 代理机构 |
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