Sheathed-element glow plug
    1.
    发明授权
    Sheathed-element glow plug 失效
    护套元件电热塞

    公开(公告)号:US06727472B2

    公开(公告)日:2004-04-27

    申请号:US10069212

    申请日:2002-07-10

    IPC分类号: F23Q722

    CPC分类号: F23Q7/001

    摘要: A sheathed-element glow plug to be mounted in a combustion chamber is proposed, a rod-shaped heating element being situated in a concentric bore hole of the housing. The heating element has a first current-carrying layer, a second current-carrying layer, and an insulating layer, the insulating layer separating the first current-carrying layer and the second current-carrying layer. The first current-carrying layer and the second current-carrying layer being connected at the end of the heating element on the combustion chamber side by a conducting-layer crosspiece. The first current-carrying layer and the second current-carrying layer are different lengths, the cross section of the first current-carrying layer in a first section at the end of the heating element away from the combustion chamber being greater than the cross section of its remaining length, and the second current-carrying layer not extending into the first section.

    摘要翻译: 提出了要安装在燃烧室中的护套元件预热塞,杆状加热元件位于壳体的同心孔中。 加热元件具有第一载流层,第二载流层和绝缘层,绝缘层将第一载流层和第二载流层分离。 第一载流层和第二载流层通过导电层横档连接在燃烧室侧的加热元件的端部。 第一载流层和第二载流层是不同长度的,在加热元件远离燃烧室的端部的第一部分中的第一载流层的横截面大于 其剩余长度和不延伸到第一部分中的第二载流层。