CAJ | 학술논문

探讨了二级涡轮增压布置方案,介绍了一种增压发动机耗气特性的计算方法,计算出不同高度和转速下发动机的耗气量和压比,绘制出该发动机的耗气特性边界线,研究了涡轮增压系统高、低两级压气机的协同运行区域,分析了高压级压气机的折合流量,以及发动机、压气机和涡轮的协同运行边界。结果表明,所选二级涡轮增压系统在一定的涡轮控制策略下能够与发动机耗气边界协同运行,为矫正涡轮控制策略提供一定依据。
탐토료이급와륜증압포치방안,개소료일충증압발동궤모기특성적계산방법,계산출불동고도화전속하발동궤적모기량화압비,회제출해발동궤적모기특성변계선,연구료와륜증압계통고、저량급압기궤적협동운행구역,분석료고압급압기궤적절합류량,이급발동궤、압기궤화와륜적협동운행변계。결과표명,소선이급와륜증압계통재일정적와륜공제책략하능구여발동궤모기변계협동운행,위교정와륜공제책략제공일정의거。
In this paper,the arrangement of a two-stage turbocharging was discussed.A calculating method of engine air consume character was introduced.The engine＇s air consume character and the compression ratio of different altitude and rotation velocity were calculated.The boundary line of engine＇s air consume character was drew.The synergy operation region of the two-stage turbocharging system was studied.The reversed flow of the high compressor,and the synergy operation boundary of the engine,compressor and turbo were analyzed.The conclusion indicated that the two-stage turbocharging system could coordinately operate with the engine air-consume boundary,which offered some proofs for adjustment of turbo control strategy.