发明授权
- 专利标题: Electromagnetic actuator having magnetic impact-damping means
- 专利标题(中): 具有磁性冲击阻尼装置的电磁致动器
-
申请号: US32918申请日: 1998-03-02
-
公开(公告)号: US6066999A公开(公告)日: 2000-05-23
- 发明人: Martin Pischinger
- 申请人: Martin Pischinger
- 申请人地址: DEX Aachen
- 专利权人: FEV Motorentechnik GmbH & Co. KG
- 当前专利权人: FEV Motorentechnik GmbH & Co. KG
- 当前专利权人地址: DEX Aachen
- 优先权: DEX29703585U 19970228
- 主分类号: F01L9/04
- IPC分类号: F01L9/04 ; H01F7/08 ; H01F7/121 ; H01F7/123 ; H01F7/18 ; H02K33/02 ; H01H47/18
摘要:
An electromagnetic actuator includes an electromagnet having a yoke and an operating coil supported by the yoke and connectable to a controllable current supply for effecting a current flow through said operating coil. An armature is movable from a first position remote from the pole face of the electromagnet to a second, pole face-engaging position in response to a first electromagnetic force generated by a current flow through the operating coil. A resetting spring is coupled to the armature and opposes the first electromagnetic force. Further, a circuit is provided which is formed of a braking coil supported by the yoke and a switching element having open and closed states. The circuit is closed in the closed state of the switching element and is in the open state of the switching element. Also, a switch control arrangement is provided which is responsive at least indirectly to a distance of the armature from the pole face during motion of the armature toward the pole face for placing the switching element into its closed state when the armature is at a given distance from the pole face, whereby the circuit is closed for producing a second electromagnetic force opposing the first electromagnetic force.
公开/授权文献
- USD379490S Liquid chemical tank 公开/授权日:1997-05-27
信息查询