Fuel injector spring force calibration tube with internally mounted fuel inlet filter
    2.
    发明授权
    Fuel injector spring force calibration tube with internally mounted fuel inlet filter 有权
    燃油喷射器弹簧力校准管,内置燃油进口过滤器

    公开(公告)号:US06328232B1

    公开(公告)日:2001-12-11

    申请号:US09487649

    申请日:2000-01-19

    IPC分类号: B05B130

    摘要: An engine fuel injector (10) having a fuel inlet tube (12) and a biasing spring (56) loading a solenoid actuated injection valve (50) within the injector (10) is provided with a calibration assembly (58) combining the calibration member (74) or tube with an internally mounted fuel inlet filter (76). The calibration member (74) may include a body (78) with an enlarged end (88) that is interference fitted within the fuel inlet tube (12) and an opposite stepped in end (80) forming a seat (82) which is engaged by the biasing spring (56). The fuel filter (76) has an enlarged annular base (92) fixed within the enlarged end (88) of the calibration member (74) and having an associated filter screen (98) or element through which fuel passing through the calibration member is filtered for passage through the injector (10). The filter screen (98) may extend completely within the calibration member (74), or alternatively, can project outward from the enlarged end (86) of the calibration member (74) into the inlet end (86) of the fuel inlet tube (12). Advantages in the ease of calibration, reduced assembly costs and improved filtration of fuel are provided.

    摘要翻译: 具有燃料入口管(12)和装载在喷射器(10)内的电磁致动喷射阀(50))的偏置弹簧(56)的发动机燃料喷射器(10)设置有校准组件(58),组合校准构件 (74)或具有内部安装的燃料入口过滤器(76)的管。 校准构件(74)可以包括主体(78),其具有被干涉配合在燃料入口管(12)内的扩大端(88)和形成座(82)的相对台阶形成座(82)的主体 通过偏置弹簧(56)。 燃料过滤器(76)具有固定在校准构件(74)的扩大端(88)内并且具有相关联的过滤网(98)或元件的扩大的环形基座(92),通过该过滤网过滤通过校准构件的燃料被过滤 用于通过喷射器(10)。 过滤网(98)可以在校准构件(74)内完全延伸,或者可选地,可以从校准构件(74)的扩大端(86)向外突出到燃料入口管的入口端(86) 12)。 提供了易于校准,降低组装成本和改善燃料过滤的优点。