发明名称 |
Hydraulic circuit system |
摘要 |
In a hydraulic circuit system, when pressurized oil discharged from a single hydraulic pump is supplied to a plurality of actuators: the pressurized oil is supplied to heavily-loaded ones of the actuators at gradually reducing flow rates to reduce a shock, while supplied to lightly-loaded ones of the actuators at gradually increasing flow rates to increase working speeds of these lightly-loaded actuators. The hydraulic circuit system comprises a plurality of directional control valves (2) one of which is provided with pressure-compensated flow control valves (18) each of which is provided with a load lead-in passage having a restriction means (R). In addition, further comprised in the system are: relief valves (22, 22) for relieving the pressurized oil under the influence of load pressure of the actuators (3) operated by the directional control valves (2); a restriction orifice (24) provided in a drain side of each of the relief valves so as to produce pressure therein.
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申请公布号 |
US5477678(A) |
申请公布日期 |
1995.12.26 |
申请号 |
US19920839664 |
申请日期 |
1992.02.14 |
申请人 |
KABUSHIKI KAISHA KOMATSU SEISAKUSHO |
发明人 |
SHIRAI, KIYOSHI;AKIYAMA, TERRUO;SHINOHARA, SHIGERU;ISHIZAKI, NAOKI;TAKIGUCHI, TAKAHIDE |
分类号 |
E02F9/22;F15B11/16;F15B13/04;(IPC1-7):F16D31/02 |
主分类号 |
E02F9/22 |
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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