FUEL INJECTION VALVE
    2.
    发明申请
    FUEL INJECTION VALVE 有权
    燃油喷射阀

    公开(公告)号:US20160047346A1

    公开(公告)日:2016-02-18

    申请号:US14780671

    申请日:2014-03-28

    IPC分类号: F02M63/00

    摘要: In a fuel injection valve having a nozzle hole plate wherein a nozzle hole is formed, the nozzle hole is formed with a flow path cross-section having an oval shape that has long axes and short axes, and the nozzle hole is formed having a tapered shape in which a flow path sectional area becomes larger from an entry-side open end portion toward an exit-side open end portion. The nozzle hole is formed such that a second angle that is an intersecting angle of opposing nozzle hole inner wall surface portions in an oblique section along the short axes of the entry-side open end portion and the exit-side open end portion, is greater than a first angle that is an intersecting angle of opposing nozzle hole inner wall surface portions in a longitudinal section along the long axes of the entry-side open end portion and the exit-side open end portion.

    摘要翻译: 在具有形成有喷嘴孔的喷嘴孔板的燃料喷射阀中,喷嘴孔形成有具有长轴和短轴的椭圆形的流路截面,喷嘴孔形成为锥形 形状,其中流路截面积从入口侧开口端部朝向出口侧开口端部变大。 喷嘴孔形成为使得沿着入口侧开口端部和出口侧开放端部的短轴的倾斜部分中的相对的喷嘴孔内壁面部的相交角度的第二角度较大 比沿着入口侧开口端部和出口侧开口端部的长轴的纵向截面中相对的喷嘴孔内壁面部的相交角度的第一角度。