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在柴油机的发展研究中,为适应当前社会上要求节省能源的形势、力求柴油机结构紧凑、轻型和高功率化,已开展了关于振动分析、排气净化、各部件应力分析等多方面的研究。目前,为了满足高经济性的要求,而采用高增压,在功率提高和轻型化方面不断取得进展。这种高增压柴油机,在负荷突变时,柴油机与增压器的匹配滞后延长,在个别情况下,柴油机甚至达到不能协调地工作程度,出现了匹配失调问题。特别在船舶发电用柴油机中,船舶自动化在飞随着应用计算机对发电装置的集中控制,由负荷变化而引起柴油机转速波动的问题受到了特别的注意。根据上述要求,本文着重于研究有关废气涡轮增压柴油机的动态特性,设定了四冲程柴油机模型,研究柴油机、增压器、调速器与负载系统的相互关系,同时求出了各系统计算式,并模拟随负载变化的柴油机匹配过程。
In the study of diesel engine development, in order to meet the current situation of requiring energy saving in the society and to make the diesel engine compact, light and high-power, various studies on vibration analysis, exhaust gas purification and stress analysis of various components have been carried out. At present, in order to meet the requirements of high economy, the use of high supercharger, continuous improvement in power and light to make progress. In this high-pressured diesel engine, when the load suddenly changes, the lag between the diesel engine and the supercharger lags behind. In some cases, the diesel engine can not even work harmoniously and the matching imbalance problem occurs. Especially in ship power generation diesel engines, ship automation has received special attention due to the centralized control of power generation devices by using a computer, and fluctuations in the engine speed caused by load changes. According to the above requirements, this paper focuses on the dynamic characteristics of the exhaust gas turbocharged diesel engine, setting a four-stroke diesel engine model, diesel engine, turbocharger, governor and load system interrelationship, and calculated the calculation of each system And simulates a diesel matching process that varies with load.