发明名称 |
ELEKTROMAGNETISCHE KLEP. |
摘要 |
<p>An intrinsically safe hydraulic valve including a first stage in the form of pilot valves and a second stage in the form of a poppet valve assembly. The poppet valve assembly includes first and second pairs of piston operated poppets which, when selectively operated, control the drive direction of a fluid motor. The pilot valves are electrically controlled through an electromagnet arrangement wherein the valves are closed when the electromagnet is de-energized and opened when it is energized. When the pilot valves are selectively opened, they apply a pilot pressure to one or the other of the pairs of piston operated poppets to drive the fluid motor.</p> |
申请公布号 |
NL157084(B) |
申请公布日期 |
1978.06.15 |
申请号 |
NL19730014910 |
申请日期 |
1973.10.30 |
申请人 |
VAPOR CORPORATION, CHICAGO, ILLINOIS, VER. ST. V. AM. |
发明人 |
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分类号 |
F15B13/043;F16K31/06;F16K31/12;(IPC1-7):15B13/043;16K31/06 |
主分类号 |
F15B13/043 |
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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