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1 尾气分析的项目和基本规则1.1 尾气分析的项目尾气分析不仅是检查排放污染物治理效果的唯一途径,而且还是对发动机工作状况及性能判定的重要手段。尾气分析是在发动机不同工作状况下,通过检测废气中不同成分气体的含量来判断发动机各系统故障的方法,其目的是对发动机的燃烧状况进行综合评价。主要分析内容有混合气空燃比、点火正时及催化转化器转化效率等。主要分析的参数有一氧化碳(CO)、碳氢化合物(HC)、二氧化碳(CO_2)和氧(O_2)等的
1 Exhaust gas analysis project and the basic rules 1.1 Exhaust gas analysis project Exhaust gas analysis is not only the only way to check the emission of pollutant control effect, but also on the engine operating conditions and performance of the important means. Exhaust gas analysis is a method of determining engine system faults by detecting the contents of different components in the exhaust gas under different operating conditions of an engine. The purpose of the exhaust gas analysis is to comprehensively evaluate the combustion conditions of the engine. The main analysis of the contents of the hybrid air-fuel ratio, ignition timing and catalytic converter conversion efficiency. The main parameters of the analysis are carbon monoxide (CO), hydrocarbons (HC), carbon dioxide (CO 2) and oxygen (O 2)