本文介绍了改进195型柴油机进气统的试验研究工作。试验表明,通过降低进气道、进气管和空气滤清器的流动阻力,以及适当利用进气气体动力效应,可以提高柴油机的充量系数和改善燃烧过程,使燃油消耗率下降2～4%。文中还简介一种能较可靠地判断进气道流通能力的模拟试验方法。 This article describes the improvement of 195 diesel engine intake system experimental research. The experiment shows that the fuel consumption rate can be reduced by 2-4% by reducing the flow resistance of the air intake duct, air intake pipe and air cleaner and making proper use of the dynamic effect of the intake air, so as to increase the filling coefficient of the diesel engine and improve the combustion process. . The article also introduces a simulation test method that can more reliably determine the airway flow capacity.