发明名称 |
System for measuring particulate discharge from vehicular internal combustion engine |
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.
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申请公布号 |
US4361028(A) |
申请公布日期 |
1982.11.30 |
申请号 |
US19810235987 |
申请日期 |
1981.02.19 |
申请人 |
NIPPON SOKEN, INC. |
发明人 |
KAMIYA, SIGERU;WAKAYAMA, JUNJI;HAYASHI, NOBUTOSHI;NOGUCHI, HIROSHI;UCHIDA, KENICHI;MORI, NOBUHISA |
分类号 |
G01N15/00;G01N1/22;G01N1/28;G01N1/38;G01N15/06;G01N15/08;G01N33/00;(IPC1-7):G01N15/00 |
主分类号 |
G01N15/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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