【摘要】 随着海拔变化，大气状态随之变化，导致内燃机性能相应变化。现行内燃机性能的大气修正标准在实际运用中还存在问题。为了深入探求柴油机大气修正的实质性问题，采用内燃机大气模拟综合测控系统，试验研究了不同大气状态下的柴油机性能。建立了一套柴油机运行在不同海拔地区的无量纲分析方法，提出了应用无量纲分析法对柴油机燃油消耗率和功率进行大气修正的方法更多还原

【Abstract】 With the variations of altitude,atmospheric pressure changes,resulting in corresponding changes of internal combustion engine performance.There are still some problems in application of current atmospheric correcting of internal combustion engines performance.In order to probe into the substancial features of the atmospheric correcting,a micro computer controlling atmosphere simulating and comprehensive measurement system for engines was used to study diesel engine performance in regions with different altitude.The dimensionless analysis of diesel engine performance was developed ,and applied to the atmospheric correcting for diesel engines.更多还原