发明授权
- 专利标题： Method of, and apparatus for, monitoring the operation of electromagnetic hydraulic valves
- 专利标题（中）： 监测电磁液压阀运行的方法和装置
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申请号： US191585申请日： 1988-05-09
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公开(公告)号： US4870364A公开(公告)日： 1989-09-26
- 发明人: Uwe Trox , Willy Kussel , Martin Reuter , Johannes Konig
- 申请人： Uwe Trox , Willy Kussel , Martin Reuter , Johannes Konig
- 申请人地址： DEX
- 专利权人： Gewerkschaft Eisenhutte Westfalia GmbH
- 当前专利权人： Gewerkschaft Eisenhutte Westfalia GmbH
- 当前专利权人地址： DEX
- 优先权： DEX3715591 19870509
- 主分类号： H01H49/00
- IPC分类号： H01H49/00 ; F16K31/06 ; H01F7/18
摘要：
The operation of an electromagnetic valve is monitored by connecting the coil of the valve to a d.c. source for a period of time sufficient to permit the current in the coil to reach its maximum steady state value then disconnecting the coil to permit the current to fall and re-connecting the coil to the source again and measuring the current which is established in the coil.
公开/授权文献
- US6050961A Oromotor dynamometer 公开/授权日：2000-04-18
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