公开(公告)号：US4361028A

公开(公告)日：1982-11-30

申请号：US235987

申请日：1981-02-19

申请人： Sigeru Kamiya ,  Junji Wakayama ,  Nobutoshi Hayashi ,  Hiroshi Noguchi ,  Kenichi Uchida ,  Nobuhisa Mori

发明人： Sigeru Kamiya ,  Junji Wakayama ,  Nobutoshi Hayashi ,  Hiroshi Noguchi ,  Kenichi Uchida ,  Nobuhisa Mori

IPC分类号： G01N15/00 ,  G01N1/22 ,  G01N1/28 ,  G01N1/38 ,  G01N15/06 ,  G01N15/08 ,  G01N33/00

CPC分类号： G01N1/2252 ,  G01N33/0011 ,  G01N1/2202 ,  G01N1/38 ,  G01N2001/2223 ,  G01N2001/2264

摘要： A system for measuring particulate discharge from a vehicular internal combustion engine has a dilution tunnel into which exhaust gases are introduced and mixed with and diluted by clean air. A part of the diluted gases is introduced through a sampling probe into a sampled gas line in which a filter is provided to collect particulates contained in the sampled gases. A differential pressure transducer is provided to detect the pressure drop across the filter and convert the detected pressure drop into an electric signal which is fed into an operator which is operative to compute the quantity of particulate content of the engine exhaust gases on the basis of the time differential of the electric signal from the differential pressure transducer.

摘要翻译： 用于测量来自车辆内燃机的颗粒物排放的系统具有稀释通道，废气被引入其中，与清洁空气混合和稀释。 稀释气体的一部分通过采样探针引入到采样气体管线中，其中提供过滤器以收集包含在取样气体中的微粒。 提供差压传感器以检测过滤器上的压降，并将检测到的压降转换成电信号，该电信号被馈送到操作者中，该操作器用于基于该信号计算发动机废气的颗粒物含量 来自差压传感器的电信号的时差。

公开(公告)号：US4633706A

公开(公告)日：1987-01-06

申请号：US666856

申请日：1984-10-31

申请人： Seitoku Ito ,  Shigeo Iwashita ,  Sigeru Kamiya ,  Hiroshi Noguchi ,  Nobuhisa Mori

发明人： Seitoku Ito ,  Shigeo Iwashita ,  Sigeru Kamiya ,  Hiroshi Noguchi ,  Nobuhisa Mori

IPC分类号： B01D46/00 ,  F02B3/06 ,  G01M15/10 ,  G01N1/22 ,  G01N1/24 ,  G01N1/28 ,  G01N1/38 ,  G01N15/06

CPC分类号： G01M15/106 ,  G01N1/2258 ,  G01N15/0618 ,  F02B3/06 ,  G01N1/2205 ,  G01N1/38 ,  G01N2001/2261

摘要： A system for measuring amounts of particulates exhausted from a vehicle internal combustion engine, such as a diesel engine, has a dilution tunnel into which exhaust gas is introduced and mixed with and diluted by clear air. One part of the diluted gas is introduced into a first sampling arrangement in which a first filter is provided for collecting particulates of dry soot and another part of the diluted gas is introduced into a second sampling arrangement in which a second filter is provided for collecting particulates of soluble organic fraction (SOF). The amounts of dry soot and SOF are calculated in a real time manner in accordance with the pressure drops across the filters on the basis of the time differential of the signals output from pressure transducers provided for each filter.

摘要翻译： 用于测量从诸如柴油发动机的车辆内燃机排出的颗粒的量的系统具有引入废气的稀释通道，与稀释空气混合并稀释。 稀释气体的一部分被引入到第一采样装置中，其中提供第一过滤器用于收集干烟灰的颗粒，另一部分稀释气体被引入第二采样装置，其中提供第二过滤器用于收集颗粒 的可溶性有机部分（SOF）。 根据从每个过滤器提供的压力传感器输出的信号的时间差，实时计算干烟尘和SOF的量，根据过滤器上的压降，实时计算。