发明授权
- 专利标题： Electromagnetic actuator and method for manufacturing electromagnetic actuator, and control valve for variable displacement compressor using electromagnetic actuator
- 专利标题（中）： 用于制造电磁执行器的电磁致动器和方法，以及使用电磁执行器的可变排量压缩机的控制阀
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申请号： US10081541申请日： 2002-02-22
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公开(公告)号： US06927656B2公开(公告)日： 2005-08-09
- 发明人: Kitaru Iwata , Hiroshi Fukasaku , Hirohito Hayashi , Izuru Shimizu , Naoya Yokomachi
- 申请人： Kitaru Iwata , Hiroshi Fukasaku , Hirohito Hayashi , Izuru Shimizu , Naoya Yokomachi
- 申请人地址： JP Aichi-ken
- 专利权人： Kabushiki Kaisha Toyota Jidoshokki
- 当前专利权人： Kabushiki Kaisha Toyota Jidoshokki
- 当前专利权人地址： JP Aichi-ken
- 代理机构： Morgan & Finnegan, LLP
- 优先权： JP2001-054456 20010228
- 主分类号： F04B27/14
- IPC分类号： F04B27/14 ; F04B27/18 ; F16K31/06 ; F25B1/00 ; H01F7/121 ; H01F7/16 ; H01F7/08
摘要：
An electromagnetic actuator includes a cylinder, a stationary core and a movable core arranged in the cylinder, and a coil located about the cylinder. The movable core moves in the cylinder in accordance with an electromagnetic force, which is generated between the stationary core and the movable core based on the current supply to the coil. The cylinder includes a first cylindrical member made of nonmagnetic material, and a second cylindrical member made of magnetic material. The first cylindrical member surrounds the stationary core and the movable core. A part of the first cylindrical member in the vicinity of the movable core is made thin to form a small diameter portion. The small diameter portion is fitted to the second cylindrical member.
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