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    SOLENOID OPERATED FUEL INJECTION VALVE
    2.
    发明公开
    SOLENOID OPERATED FUEL INJECTION VALVE 有权
    电磁干扰器KRAFTSTOFFEINSPRITZVENTIL

    公开(公告)号：EP1757800A1

    公开(公告)日：2007-02-28

    申请号：EP05748672.2

    申请日：2005-06-10

    申请人： Keihin Corporation

    发明人： Akabane, Akira, Kakuda Dev. Center of Keihin Corp. ,  Sato, Kenichi, Kakuda Dev. Center of Keihin Corp.

    IPC分类号： F02M51/06

    CPC分类号： F02M51/0675 ,  F02M51/0614 ,  F02M61/168 ,  F02M61/18 ,  F02M2200/8061 ,  F02M2200/8084 ,  Y10T29/49432

    摘要： An electromagnetic fuel injection valve is provided in which a cylindrical magnetic body is welded to a valve seat member having at the rear end thereof a tubular press-fit portion press-fitted into a front portion of the cylindrical magnetic body, a valve body is housed in the valve seat member while being spring-biased in a direction that seats the valve body on a valve seat, and a movable core facing a fixed core is coaxially connected to the valve body, wherein the valve seat member (10) includes the tubular press-fit portion (10a), a large diameter portion (10b) that has substantially the same outer diameter as the outer diameter of the cylindrical magnetic body (9), and an annular shoulder portion (10c) that is formed as a flat face perpendicular to the outer peripheral face of the tubular press-fit portion (10a) and provides a connection between the tubular press-fit portion (10a) and the large diameter portion (10b), an annular abutment receiving face (9a) at the front end of the cylindrical magnetic body (9) is formed so as to define a right angle relative to the inner peripheral face of the cylindrical magnetic body (9), the annular abutment receiving face (9a) abutting against the annular shoulder portion (10c) over substantially the entire face, and the front end of the cylindrical magnetic body (9) and the abutment portion of the valve seat member (10) are welded together along the entire periphery. This enables the thickness of the cylindrical magnetic body to be reduced, thus making it small and improving the responsiveness.

    摘要翻译： 提供一种电磁燃料喷射阀，其中圆柱形磁体焊接到阀座构件，阀座构件的后端具有压配合到圆柱形磁体的前部的管状压配合部，容纳阀体 在阀座构件的同时沿阀座上的阀体的方向进行弹簧偏压，并且面向固定芯的可动铁芯与阀体同轴连接，其中阀座构件（10）包括管状 压配合部分（10a），具有与圆柱形磁体（9）的外径基本相同的外径的大直径部分（10b）和形成为平面的环形肩部（10c） 垂直于管状压配合部分（10a）的外周面并且提供管状压配合部分（10a）和大直径部分（10b）之间的连接，在前部的环形邻接接收面（9a） 结束t 圆柱形磁体（9）形成为相对于圆柱形磁体（9）的内周面形成直角，环形台座接收面（9a）基本上与环形肩部（10c）抵接 整个表面和圆柱形磁体（9）的前端和阀座构件（10）的抵接部分沿着整个周边焊接在一起。 这样可以减小圆柱形磁性体的厚度，从而使其小型化并提高响应性。