发明授权
- 专利标题： Fuel injection valve having stationary core and movable core
- 专利标题（中）： 燃油喷射阀具有固定芯和可动芯
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申请号： US11018963申请日： 2004-12-22
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公开(公告)号： US07344093B2公开(公告)日： 2008-03-18
- 发明人: Shinsuke Yamamoto , Masaki Akutagawa , Koichi Sugiyama
- 申请人： Shinsuke Yamamoto , Masaki Akutagawa , Koichi Sugiyama
- 申请人地址： JP
- 专利权人： Denso Corporation
- 当前专利权人： Denso Corporation
- 当前专利权人地址： JP
- 代理机构： Nixon & Vanderhye PC
- 优先权： JP2003-434576 20031226; JP2004-307837 20041022
- 主分类号： F02M51/00
- IPC分类号： F02M51/00
摘要：
A tubular member is arranged radially inward of a coil to cover outer peripheral parts of a movable core and of a stationary core. The stationary core has a tapered portion in an opposing portion, which is opposed to the movable core. The stationary core also has a large diameter portion on a counter movable core side of the tapered portion. An outer diameter of the tapered portion is increased from an opposing end surface side part toward the large diameter portion. The outer diameter of the opposing end surface of the opposing portion, which is opposed to the movable core, is generally the same as an outer diameter of the movable core. An outer diameter of the large diameter portion of the stationary-core is larger than the outer diameter of the movable core.
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