| 发明名称 |
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| 摘要 |
<p>A solenoid operated directional control valve includes a visual position indicator assembled of rectifying bridge circuit whose DC output terminals are bridged by a series connection of a light emitting diode with a PTC resistor. In this manner, the indicator is universally applicable both for DC and AC power sources and for a wide range of supply voltages.</p> |
| 申请公布号 |
DE8700256(U1) |
申请公布日期 |
1988.05.05 |
| 申请号 |
DE19870000256U |
申请日期 |
1987.01.07 |
| 申请人 |
ROBERT BOSCH GMBH, 7000 STUTTGART, DE |
发明人 |
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| 分类号 |
F16K37/00;(IPC1-7):F15B13/02;F16K51/00 |
主分类号 |
F16K37/00 |
| 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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