发明授权
- 专利标题: Single coil solenoid having a permanent magnet with bi-directional assist
- 专利标题(中): 具有双向辅助的永磁体的单线圈螺线管
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申请号: US11780615申请日: 2007-07-20
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公开(公告)号: US08274348B2公开(公告)日: 2012-09-25
- 发明人: Richard P. Kolb , Kevin G. Nowobilski
- 申请人: Richard P. Kolb , Kevin G. Nowobilski
- 申请人地址: US CO Fort Collins
- 专利权人: Woodward, Inc.
- 当前专利权人: Woodward, Inc.
- 当前专利权人地址: US CO Fort Collins
- 代理机构: Ziolkowski Patent Solutions Group, SC
- 主分类号: H01F7/00
- IPC分类号: H01F7/00
摘要:
A single coil solenoid includes a permanent magnet with bi-directional assist capabilities. The solenoid includes an armature that during de-energization of a single coil of wire is attracted to the permanent magnet thereby maintaining a hold position and during energization of the single coil has a polarity that repels the permanent magnet thereby creating a push/pull force. In this regard, the permanent magnet operates to not only hold the armature but also is used to push the armature when current is induced in the single coil.
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