发明名称 |
Hydraulic control for a face support in mining comprises control valves divided into groups with each group connected to a hydraulic pressure pipe by a supply pipe |
摘要 |
<p>Hydraulic control comprises control valves (8, 9) divided into groups with each group connected to a hydraulic pressure pipe (16) by a supply pipe (18). The group connection can be closed by a check valve (20) according to the control valve operation when they are not closed. Preferred Features: The control valves of each support (1, 2, 3) form the groups of control valves which are connected to the pressure pipe by the group connection depending on the operation of the support in the non-operating state.</p> |
申请公布号 |
DE102004017712(A1) |
申请公布日期 |
2004.12.09 |
申请号 |
DE20041017712 |
申请日期 |
2004.04.10 |
申请人 |
TIEFENBACH BERGBAUTECHNIK GMBH |
发明人 |
KUSSSEL, WILLI |
分类号 |
E21D23/26;(IPC1-7):E21D23/12;E21D23/16 |
主分类号 |
E21D23/26 |
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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