发明公开
- 专利标题： ACTIONNEUR ELECTROMAGNETIQUE AVEC DEUX ELECTROAIMANTS COMPORTANT DES AIMANTS DE FORCES DIFFERENTES, ET PROCEDE DE GESTION D'UNE SOUPAPE DE MOTEUR A COMBUSTION INTERNE FAISANT APPLICATION.
- 专利标题（英）： Electromagnetic actuator with two electromagnets comprising magnets having different forces and method of controlling an internal combustion engine valve using same
- 专利标题（中）： 用于控制内燃机阀具有不同强力磁铁和方法两个电磁铁电磁致动器
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申请号： EP06841832.6申请日： 2006-11-30
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公开(公告)号： EP1955338A1公开(公告)日： 2008-08-13
- 发明人: SFAXI, Mahmoud , TALON, Emmanuel
- 申请人： Valeo Systèmes de Contrôle Moteur
- 申请人地址： 14 Avenue des Béguines 95800 Cergy FR
- 专利权人： Valeo Systèmes de Contrôle Moteur
- 当前专利权人： Valeo Systèmes de Contrôle Moteur
- 当前专利权人地址： 14 Avenue des Béguines 95800 Cergy FR
- 代理机构： Rolland, Jean-Christophe
- 优先权： FR0512235 20051202
- 国际公布： WO2007063222 20070607
- 主分类号： H01F7/122
- IPC分类号： H01F7/122 ; F01L9/04
摘要：
The invention relates to an electromagnetic actuator comprising: an actuation member which is associated with a vane (4) and which can move between two end positions under the action of an elastic member; and two electromagnets which are designed to attract the vane to one of the end positions respectively, each electromagnet comprising a coil (3), a core (2) which is designed to channel the magnetic flux such that it is contained within the vane and one or more permanent magnets (13) which are associated with the core. According to the invention, the permanent magnet(s) (13) of one of the electromagnets (1) are designed to exert a force on the vane (4) that is sufficient to retain the vane in the end position, while the permanent magnet(s) (113) of the other electromagnet (101) are designed to exert a force on the vane (4) that is not sufficient to retain the vane in the end position.
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