发明名称 |
Flow control valve having pressure compensating valve |
摘要 |
A flow control valve includes a pressure compensating valve and a first switching valve. The pressure compensating valve is configured to enlarge an opening area of a variable orifice between a load pressure line and a compensating pressure line when a pressure of working fluid of the compensating pressure line is smaller than a first set pressure, and narrow the opening area of the variable orifice when the pressure of the working fluid of the compensating pressure line is larger than the first set pressure. The first switching valve is configured to switch between a meter-out operation and a neutral operation by an external operation, wherein the working fluid of the compensating pressure line is drained in the meter-out operation, the working fluid of the compensating pressure line is not drained in the neutral operation. The load pressure line guides the working fluid to be supplied to an actuator.
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申请公布号 |
US7665579(B2) |
申请公布日期 |
2010.02.23 |
申请号 |
US20060342593 |
申请日期 |
2006.01.31 |
申请人 |
MITSUBISHI HEAVY INDUSTRIES, LTD. |
发明人 |
ITOSE MASAKAZU |
分类号 |
B66F9/22;B66B9/04;F01B1/06;F15B11/04;F16K17/26 |
主分类号 |
B66F9/22 |
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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