发明名称 |
Method and apparatus for monitoring and determining the functional status of an electromagnetic valve |
摘要 |
The present invention provides a method and apparatus for determining the functional status of an electromagnetic valve having a solenoid and plunger including determining the electro-mechanical switching time of a valve based on characteristics of an electrical characteristic responsive to the solenoid; comparing the valve electro-mechanical switching time to a predetermined value; and generating a valve status signal dependant on the results of the comparison.
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申请公布号 |
US7405917(B2) |
申请公布日期 |
2008.07.29 |
申请号 |
US20060455270 |
申请日期 |
2006.06.16 |
申请人 |
FESTO AG & CO. |
发明人 |
AHRENS OLIVER;SZENN OTTO;MISSAL WJATSCHESLAW;FORSTER KARL-HEINZ |
分类号 |
H01H47/00 |
主分类号 |
H01H47/00 |
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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