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基于自行研制的微机控制内燃机大气模拟综合测控系统,对增压及增压中冷柴油机进行了大气压力对燃烧过程的影响关系及变化规律的试验研究．试验结果表明,随着大气压力减小,导致吸入气缸内的空气量减少,缸内吸气终了时温度和压力下降,从而使得增压及增压中冷柴油机缸内最高燃烧压力下降,燃油消耗率和排气温度升高,而且在不同转速、不同工况下,其下降率不同．
Based on the self-developed microcomputer-controlled internal combustion engine atmospheric simulation integrated measurement and control system, the relationship between the atmospheric pressure and the combustion process of the supercharged and intercooled intercooled diesel engine was studied. The experimental results show that as the atmospheric pressure decreases, the amount of air in the intake cylinder decreases, and the temperature and pressure drop at the end of the cylinder intake, resulting in the decrease of the maximum combustion pressure in the supercharged and intercooled diesel engine cylinder, and the fuel consumption Rate and exhaust temperature increases, and in different speed, different conditions, the rate of decline is different.