Torch for fabricating optical fiber preform
    1.
    发明授权
    Torch for fabricating optical fiber preform 失效
    用于制造光纤预制棒的手电筒

    公开(公告)号:US4810189A

    公开(公告)日:1989-03-07

    申请号:US13088

    申请日:1987-02-10

    摘要: A torch for fabricating an optical fiber perform which has a plurality of raw gas injection passages at the center of the torch, a plurality of small-diameter combustion supporting gas injection passages independent of each other and disposed to surround the raw gas injection passages on the outer periphery of the raw gas injection passages disposed at the center of the torch, and an annular combustible gas injection passage disposed around the small-diameter combustion supporting gas injection passages. Thus, the torch can stably manufacture porous glass preforms.

    摘要翻译: 一种用于制造光纤的手电筒,其具有在炬的中心处的多个原料气体注入通道,多个小直径燃烧支持气体注入通道彼此独立并且设置成围绕在该喷嘴的原料气体注入通道 设置在割炬中心处的原料气体注入通道的外周和设置在小直径燃烧支持气体注入通道周围的环形可燃气体注入通道。 因此,手电筒可以稳定地制造多孔玻璃预制件。