发明授权
- 专利标题: Fuel pump
- 专利标题(中): 燃油泵
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申请号: US12946706申请日: 2010-11-15
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公开(公告)号: US08647082B2公开(公告)日: 2014-02-11
- 发明人: Hiroaki Naito , Kazumichi Hanai
- 申请人: Hiroaki Naito , Kazumichi Hanai
- 申请人地址: JP Obu-Shi, Aichi-Ken
- 专利权人: Aisan Kogyo Kabushiki Kaisha
- 当前专利权人: Aisan Kogyo Kabushiki Kaisha
- 当前专利权人地址: JP Obu-Shi, Aichi-Ken
- 代理机构: Vierra Magen Marcus LLP
- 优先权: JP2009-261208 20091116
- 主分类号: H02K21/38
- IPC分类号: H02K21/38
摘要:
A fuel pump may include a motor section comprising a rotor and a stator. One of the rotor and the stator may have at least a pair of permanent magnet parts disposed along a first circumferential surface at an interval in a circumferential direction, and at least two magnetic material parts disposed between ends of adjacent permanent magnet parts. The other one of the rotor and the stator may have a first yoke disposed so as to face the permanent magnet parts, wherein a plurality of slots are formed on the first yoke at an interval in the circumferential direction. A surface facing the slots of the magnetic material parts may be shifted, in at least a partial range in the circumferential direction including a permanent magnet part side end where a polarity of a first circumferential surface side is a north pole, from the first circumferential surface in a direction along which a distance to the slots increases.
公开/授权文献
- US20110116955A1 FUEL PUMP 公开/授权日:2011-05-19
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