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1. 发明公开

EP2570648A1 ELECTROMAGNETIC FUEL-INJECTION VALVE 有权转让
标题翻译：电磁燃油喷射阀
公开(公告)号：EP2570648A1
公开(公告)日：2013-03-20
申请号：EP11780515.0
申请日：2011-04-27
申请人： Keihin Corporation
发明人： MORIYA Masateru , OOMURA Tomoyuki , INOMATA Yutaka , OKAMOTO Atsushi
IPC分类号： F02M51/06
CPC分类号： F02M61/12 , F02M51/0675 , F02M61/188 , F02M2200/9069
摘要： In the disclosed electromagnetic fuel-injection valve: a non-magnetic or weakly magnetic guide bush (19) is affixed at the inner periphery of an immobile core (6); the front end of the guide bush (19) protrudes from the suction surface (6a) of the immobile core (6); during excitation of a coil (37), by means of a mobile core (16) being caused to contact the front end of the guide bush (19), the opening boundary of a valve body (15) is defined, and an air gap (g) is formed between the immobile core (6) and the mobile core (16); and a sliding member (20) that is slidably borne at the inner peripheral surface of the guide bush (19) is provided to a valve assembly (V). As a result, a structure-simple electromagnetic fuel injection valve is provided wherein the opening/closing postures of the valve body can be effectively stabilized, and moreover at the time of demagnetization of the coil, valve closing responsiveness can be favorably obtained.
摘要翻译：在公开的电磁燃料喷射阀中：在不动芯（6）的内周边处固定有非磁性或弱磁性的导向衬套（19）。导向套19的前端从不动芯6的吸力面6a突出，在线圈（37）激励期间，借助于引起与导套（19）的前端接触的移动芯（16），限定阀体（15）的开口边界，并且气隙（g）形成于所述不动芯体（6）与所述可动芯体（16）之间; 在阀组件（V）上设置有滑动自如地支承在导向套筒（19）的内周面的滑动部件（20）。结果，提供了一种结构简单的电磁燃料喷射阀，其中阀体的打开/关闭姿态能够被有效地稳定，而且在线圈消磁时，可以有利地获得阀关闭响应性。

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