Air-fuel ratio sensor
    3.
    发明授权
    Air-fuel ratio sensor 有权
    空燃比传感器

    公开(公告)号:US07007543B2

    公开(公告)日:2006-03-07

    申请号:US10686773

    申请日:2003-10-17

    IPC分类号: G01N27/407

    CPC分类号: G01N27/4077

    摘要: An air-fuel ratio sensor includes a sensor element inserted through a cylindrical housing for detecting an air-fuel ratio in an atmosphere of unburnt gas, and a measured gas side cover disposed on an end of the cylindrical housing so as to cover the sensor element and defining an inside chamber for storing therein a gas to be measured. The cover has a nested structure composed of a plurality of cup-shaped cover members disposed one inside another, each cover member having a gas inlet hole formed in a side wall thereof and a bottom hole formed in a bottom wall thereof. The gas inlet hole of an innermost one of the plural cover members that directly faces the sensor element is offset from an air-fuel ratio detecting portion of the sensor element toward the housing in an axial direction of the sensor.

    摘要翻译: 空燃比传感器包括:插入通过圆柱形壳体的传感器元件,用于检测未燃气体的空气中的空燃比;以及测量气体侧盖,设置在圆柱形壳体的端部上,以覆盖传感器元件 并且限定用于在其中存储要测量的气体的内部室。 盖具有由多个彼此设置的杯形盖构件组成的嵌套结构,每个盖构件具有形成在其侧壁中的气体入口孔和形成在其底壁中的底孔。 直接面向传感器元件的多个盖构件中最内侧的气体入口孔沿着传感器的轴向朝向壳体偏离传感器元件的空燃比检测部。