Control spring for a fuel injection valve for internal combustion engines
    1.
    发明授权
    Control spring for a fuel injection valve for internal combustion engines 失效
    用于内燃机燃油喷射阀的控制弹簧

    公开(公告)号:US5934572A

    公开(公告)日:1999-08-10

    申请号:US894503

    申请日:1997-10-10

    IPC分类号: F02M61/10 F02M61/16 F02M61/20

    CPC分类号: F02M61/168 F02M61/20

    摘要: A fuel injection valve for internal combustion engines having, a valve member, which is axially displaceable in a valve body and which on one end has a valve sealing face with which it cooperates with a stationary valve seat in order to control an injection cross section, and having at least one valve spring, which urges the valve member in the direction of the valve seat and is braced on its other end on a stationary stop. To increase the spring force of the valve spring while the outer diameter remains the same, the windings of the valve spring, embodied as a helical spring, have a circular basic cross section (Y), which in a region pointing radially outward from the axis (X) of the valve spring has a ground face oriented parallel to the spring axis (X).

    摘要翻译: PCT No.PCT / DE96 / 01480。 371日期:1997年10月10日 102(e)日期1997年10月10日PCT提交1996年8月8日PCT公布。 公开号WO97 / 22801 日期1996年6月26日用于内燃机的燃料喷射阀具有阀构件,阀构件可在阀体中轴向移位,并且其一端具有阀密封面,与阀固定阀座配合,以便控制 注射截面,并且具有至少一个阀弹簧,该阀弹簧在阀座的方向上推动阀构件,并且在其另一端支撑在固定止动件上。 为了增加阀弹簧的弹簧力,外径保持不变,阀弹簧的绕组体现为螺旋弹簧,具有圆形的基本横截面(Y),该圆形基本横截面(Y)在从轴线径向向外的区域 阀弹簧的(X)具有平行于弹簧轴线(X)定向的接地面。