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1. 发明授权

US06516654B2 Apparatus and method for analyzing particulate matter in gas and apparatus and method for carbon differentiating 有权
标题翻译：用于分析气体中的颗粒物质的装置和方法以及用于碳分解的方法
公开(公告)号：US06516654B2
公开(公告)日：2003-02-11
申请号：US09730361
申请日：2000-12-05
申请人： Hiroshi Uchihara , Junji Okayama , Atsushi Bando , Masahiko Ikeda , Masayuki Adachi , Ichiro Asano , Hirokazu Fukushima
发明人： Hiroshi Uchihara , Junji Okayama , Atsushi Bando , Masahiko Ikeda , Masayuki Adachi , Ichiro Asano , Hirokazu Fukushima
IPC分类号： G01N100
CPC分类号： G01N15/0618 , G01N15/0637 , G01N30/12 , G01N33/004 , G01N33/0042 , Y02A50/243 , Y02A50/244 , Y02A50/248 , Y02A50/25
摘要： The present invention provides a method for analyzing particulate matter in a gas for analyzing simply and with high precision the particulate matter in an engine emission and an apparatus therefor by which dry soot, SOF and sulfate in PM contained in an engine emission can be fractionated individually even in a trifle amount. The present invention further provides a carbon differentiating and analyzing apparatus capable of differentiating and analyzing with precision the organic carbon and the elemental carbon contained in a sample and capable of performing a predetermined analysis with precision in a short time by reducing the period of time required for the analysis. The present invention is constituted such that a heating furnace is provided with a filter which has caught PM contained in engine emission. The filter is heated at a predetermined temperature while passing an inert gas into the heating furnace to evaporate the SOF and sulfate contained in PM. The evaporated SOF is oxidized into CO2 and the evaporated sulfate is reduced into SO2. The CO2 and SO2 are analyzed with a gas analyzer unit, and thereafter, the filter is heated while passing oxygen into the heating furnace to oxidize the PM remaining on the filter to have it generate CO2. The CO2 is analyzed with the. gas analyzer unit. The present invention is constituted such that a thermal decomposition tube includes, successively from its upstream side a carrier gas inlet, a low temperature heating portion for evaporating organic carbon in the sample, and a high temperature heating portion for thermally decomposing elemental carbon in the sample, whereby the organic carbon is separated in the low temperature heating portion and the elemental carbon is separated in the high temperature heating portion.
摘要翻译：本发明提供了一种用于分析气体中的颗粒物质的方法，用于简单且高精度地分析发动机排放物中的颗粒物质及其装置，通过该方法可以单独分馏发动机排放物中含有的PM中的干烟灰，SOF和硫酸盐即使在一个小的数量。本发明还提供一种能够精确地对样品中含有的有机碳和元素碳进行微分析和分析的碳分析分析装置，能够在短时间内精确地进行规定的分析，通过减少所需的时间分析。本发明的结构使得加热炉设置有捕获发动机发射的PM的过滤器。将过滤器加热至预定温度，同时将惰性气体通入加热炉中，蒸发PM中所含的SOF和硫酸盐。蒸发的SOF被氧化成CO 2，蒸发的硫酸盐还原成SO 2。用气体分析装置对二氧化碳和二氧化硫进行分析，然后在将氧气通入加热炉内加热过滤器，氧化残留在过滤器上的PM，使其产生二氧化碳。用二氧化碳分析。气体分析仪。本发明构成为：热分解管从其上游侧依次包括载气入口，用于蒸发样品中的有机碳的低温加热部和用于热分解样品中的元素碳的高温加热部由此，有机碳在低温加热部分分离，元素碳在高温加热部分分离。

2. 发明授权

US4594004A Continuous particulate-measuring apparatus using an optoacoustic effect 失效
标题翻译：使用光声效应的连续粒度测量仪器
公开(公告)号：US4594004A
公开(公告)日：1986-06-10
申请号：US509229
申请日：1983-06-28
申请人： Kozo Ishida , Junji Okayama , Kunio Otsuki
发明人： Kozo Ishida , Junji Okayama , Kunio Otsuki
IPC分类号： G01N21/00 , G01N21/17 , G01N29/00 , G01N21/61
CPC分类号： G01N21/1702
摘要： An apparatus for continuously measuring the concentration of particulates in a sample gas by using an optoacoustic effect. Identical laser rays are directed along two optical paths, and a chopper and an optoacoustic cell are position in the recited order in each of the optical paths. Sample gas containing particulates is introduced into one optoacoustic cell and sample gas from which the particulates have been removed is introduced into the other optoacoustic cell. The respective choppers are driven for producing a chopping action on the respective laser rays at a frequency corresponding to the resonant frequency of the corresponding optoacoustic cells, and the outputs from the cells can be compared for providing an indication of the concentration of the particulates in the sample gas.
摘要翻译：一种用于通过使用光声效应连续测量样品气体中的微粒浓度的装置。相同的激光射线沿着两个光学路径被引导，并且斩波器和光声单元在每个光路中以所述的顺序位置。将含有微粒的样品气体引入一个光声池中，将已除去微粒的样品气体引入另一个光声池中。驱动相应的斩波器，以对应于相应的光声单元的谐振频率的频率对各激光线产生斩波作用，并且可以比较来自该单元的输出，以便提供微粒的浓度的指示样气

3. 发明授权

US4747297A Apparatus for analyzing particulates 失效
标题翻译：微粒分析装置
公开(公告)号：US4747297A
公开(公告)日：1988-05-31
申请号：US12650
申请日：1987-02-09
申请人： Junji Okayama , Naoki Noguchi , Hiroyuki Amimoto
发明人： Junji Okayama , Naoki Noguchi , Hiroyuki Amimoto
IPC分类号： F02B3/06 , G01N1/28 , G01N1/38 , G01N15/06 , G01N33/00 , H01M8/04 , H01M8/10 , H01M8/24
CPC分类号： G01N15/06 , G01N33/0032 , F02B3/06 , G01N1/38
摘要： An apparatus for measuring and analyzing the concentration or weight of particulates in the exhaust gas from a diesel engine. The apparatus includes a carbon particle detector which continuously measures dry soot concentration and high and low temperature HC detectors which respectively continuously measure the concentrations of gaseous hydrocarbon compounds (1) in a high-temperature undiluted state immediately upon leaving the diesel engine and (2) in a low-temperature diluted and cooled state after dilution with room air. Standard gas detectors are provided for both the high-temperature undiluted exhaust gas and the diluted and cooled exhaust gas in order to continuously determine the amount of dilution of the diluted exhaust gas. Outputs from the detectors are input to a computer to provide continuous determination of the total concentration or weight of particulates which are composed of soot particles and soluble organic fractions, as well as separate determinations of these components.
摘要翻译：一种用于测量和分析来自柴油发动机的废气中的颗粒物的浓度或重量的装置。该装置包括连续测量干烟灰浓度的碳粒子检测器，以及在离开柴油发动机时立即分别连续地测量处于高温未稀释状态的气态烃化合物（1）的浓度的高温和低温HC检测器，以及（2）在用室内空气稀释后在低温稀释和冷却状态。为高温未稀释废气和稀释和冷却废气提供标准气体检测器，以连续确定稀释废气的稀释量。来自检测器的输出被输入到计算机以提供由烟灰颗粒和可溶性有机部分组成的颗粒的总浓度或重量的连续测定，以及这些组分的单独测定。

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