发明名称 |
ELECTROOHYDRAULIC CONTROL DEVICE |
摘要 |
<p>A hydraulic control system has a three-position valve which in its central position disconnects the high-pressure and low-pressure sides of a pressure source from outlet lines but connects these sides of the source together through a low-pressure valve. Moved to either of its end positions the valve is disconnected from between the sides of the pressure source and the output lines are connected to the high-pressure and low-pressure source sides. A pressure-limiting valve is connected between the sides of the source. In addition, the high-pressure side is connected via pressure-reducing valve and a restriction to a pair of pilot valves which are in turn connected to the low-pressure side. These pilot valves are also connected to opposite chambers of a pilot cylinder that controls the valve body. The pressure-reducing valve between the pilot valves and the high-pressure side maintains a medium-pressure level in the system when the valves move from its central position.</p> |
申请公布号 |
JPS5217172(A) |
申请公布日期 |
1977.02.08 |
申请号 |
JP19760090779 |
申请日期 |
1976.07.29 |
申请人 |
BOSCH GMBH ROBERT |
发明人 |
YOAHIMU HAIZAAA;RAINAA HOOHAIZERU;HAINTSU GANTO;HAINTSU FURATSUSHIYAA;HAINTSU KURAINSHIYUMITSUTO;KONRAATO PUROINRINGAA;KURAUSU SOFUA;ROORANDO SHIENPU;HERUMAN ZANTSUENBATSUHERU |
分类号 |
F15B11/08;F15B13/043 |
主分类号 |
F15B11/08 |
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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