Particulate sampling system
    10.
    发明授权
    Particulate sampling system 失效
    微粒采样系统

    公开(公告)号:US3986386A

    公开(公告)日:1976-10-19

    申请号:US460291

    申请日:1974-04-12

    IPC分类号: G01N1/22 G01N1/28 G01N1/38

    摘要: A method and apparatus for measuring particulates contained in the exhaust gases from internal combustion engines which dilutes the exhaust gases with prefiltered and precooled air to produce a constant volume mixture which may be sampled for exhaust gas emissions as well as for particulates. After mixing of the exhaust gases and the pretreated air, sampling of the mixture by isokinetic probes produces a uniform sample of particulate matter which is collected on temperature controlled filters for analysis.

    摘要翻译: 一种测量来自内燃机的废气中所含的微粒的方法和装置,其用预过滤和预冷空气稀释废气,以产生恒定体积的混合物,该体积混合物可以用于废气排放以及颗粒物。 在排气和预处理的空气混合后,通过等动力学探针对混合物进行取样产生均匀的颗粒物质样品,其在温度控制过滤器上收集用于分析。