| 摘要 |
PROBLEM TO BE SOLVED: To provide an on-vehicle engine exhaust gas analyzer for continuously analyzing the discharge weights of many components contained in the engine exhaust gas of a vehicle such as automobile without using any exclusive large- scaled facility. SOLUTION: A vehicle 1 is loaded with a gas analytic part 6 for measuring the concentration of exhaust gas EX flowing in the exhaust pipe 3 of an engine 2; a tracer gas injection part P1 mounted on the exhaust pipe 3 upstream from a measurement part P2 for the exhaust gas concentration to inject a tracer gas SF6 whose concentration can be measured by the gas analytic part 6; and an arithmetic processing part 7 for determining the exhaust gas flow rate Qex from the measured concentration Csf6 of the tracer gas SF6 measured by the gas analytic part 6, the injecting concentration Ct of the tracer gas SF6, and the injecting flow rate Qt of the tracer gas SF6 and continuously determining the discharge weight Wuk of a component to be measured in the exhaust gas EX from the exhaust gas flow rate Qex and the concentration Cuk of the component to be measured, which is measured simultaneously by the gas analytic part 6.
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