发明名称 |
ELEKTROHYDRAULISCHES WEGEVENTIL |
摘要 |
<p>The electrohydraulic directional control valve system includes a preliminary directional control valve and a main control valve, the latter having a control spool which is normally brought into its neutral or blocking position by means of two springs arranged in pressure chambers at respective ends of the control spool. The preliminary control valve has a sliding spool which at one end is urged by a spring into an additional safety position in which the pressure chambers of the main control valve are interconnected and pressure relieved, and the intake of the pressure fluid is blocked. A single proportionally operating solenoid counteracts the spring at the other end of the control spool of the preliminary control valve.</p> |
申请公布号 |
DE2840831(A1) |
申请公布日期 |
1980.04.03 |
申请号 |
DE19782840831 |
申请日期 |
1978.09.20 |
申请人 |
ROBERT BOSCH GMBH |
发明人 |
SCHUTTENBERG,ECKARD;HAUSER,MANFED;HOMMEN,WINFRIED;SOPHA,KLAUS,DIPL.-ING. |
分类号 |
F15B13/043;F16K31/42;(IPC1-7):F15B13/043 |
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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