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在原位和动态情况下对柴油机进行检测诊断比较困难,但可以通过测量与柴油机结构参数有关的性能参数来获得故障信息。为了检测诊断的快速、准确,应选择与功率、油耗和磨损有关的参数(如转速、功率及加速时间、供油提前角、喷油状况、气缸压力、配气相位、油耗、排气烟度、工作小时等)作为主要检测参数;选择一些次要的性能参数(如温度、机油消耗量、机油压力、气缸漏气量、增压器增压度、进气管真空度、电源起动系以及润滑油中磨损金属微粒含量等)作为辅助检测参数。现就柴油机各有关参数的检测诊断方法应用现状作一简要介绍。
It is difficult to detect and diagnose diesel engine both in-situ and dynamic. However, fault information can be obtained by measuring the performance parameters related to the structural parameters of diesel engine. In order to test the diagnosis quickly and accurately, parameters related to power, fuel consumption and wear should be selected (such as speed, power and acceleration time, fuel supply advance angle, fuel injection conditions, cylinder pressure, gas phase, fuel consumption, exhaust smoke , Working hours, etc.) as the main test parameters; select a number of secondary performance parameters (such as temperature, oil consumption, oil pressure, cylinder leakage, supercharger booster, intake manifold vacuum, power start-up and lubrication Oil, wear metal particles, etc.) as an auxiliary detection parameters. Diesel is now on the detection of the relevant parameters of the diagnostic status of the application for a brief introduction.