发明授权
- 专利标题: Method of increasing the cast-off speed of the armature in an electromagnetic actuator
- 专利标题(中): 增加电磁执行机构中电枢的脱离速度的方法
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申请号: US438363申请日: 1999-11-12
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公开(公告)号: US6166896A公开(公告)日: 2000-12-26
- 发明人: Gunter Schmitz
- 申请人: Gunter Schmitz
- 申请人地址: DEX Aachen
- 专利权人: FEV Motorentechnik GmbH
- 当前专利权人: FEV Motorentechnik GmbH
- 当前专利权人地址: DEX Aachen
- 优先权: DEX19826569 19980615; DEX19921938 19990512
- 主分类号: F01L9/04
- IPC分类号: F01L9/04 ; H01F7/123 ; H01F7/18 ; H01H47/06
摘要:
A method of increasing a cast-off speed of an armature from a pole of an electromagnet of an electromagnetic actuator, includes the following steps: holding the armature at the pole against a force of a resetting device by maintaining an electric holding current flow through a coil of the electromagnet; and launching the armature from the pole by switching off the holding current; and at a predetermined moment during a release period of the armature from the pole, passing a cast-off current for a predetermined period through the coil. The cast-off current has a polarity opposite to the polarity of the holding current.
公开/授权文献
- US5557939A Control system for absorption chillers 公开/授权日:1996-09-24
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