CAJ | 학술논문

为了改善柴油机的燃油喷射性能,降低共轨压力波动,提高其动力性,本文分析了柴油机共轨管容积与压力建立时间及压力波动量的关系,研究了共轨管容积及其影响因素,基于 GT-suite 建立了四缸柴油机燃油共轨系统模型并进行了仿真,根据共轨管容积与压力建立时间及压力波动量的关系的仿真结果,确定了共轨管容积为21mL 时最优,根据共轨管长径比和压力波动量的关系的仿真结果建立了轨压适应度函数,并根据轨压适应度与共轨管长径比的关系确定了共轨管内径为11mm,管长为220mm 时最优,为共轨管的结构设计提供了理论依据.
위료개선시유궤적연유분사성능,강저공궤압력파동,제고기동력성,본문분석료시유궤공궤관용적여압력건립시간급압력파동량적관계,연구료공궤관용적급기영향인소,기우 GT-suite 건립료사항시유궤연유공궤계통모형병진행료방진,근거공궤관용적여압력건립시간급압력파동량적관계적방진결과,학정료공궤관용적위21mL 시최우,근거공궤관장경비화압력파동량적관계적방진결과건립료궤압괄응도함수,병근거궤압괄응도여공궤관장경비적관계학정료공궤관내경위11mm,관장위220mm 시최우,위공궤관적결구설계제공료이론의거.
In order to improve diesel engine fuel injection performance , reduce the common -rail pressure fluctuations and improve its power , the relationship of diesel engine common -rail volume, pressure build -up time and the amount of pressure fluctuations were analyzed , volume and its influence factors of the common -rail were studied, and four -cylinder diesel engine common -rail fuel system model were established and simulated base on GT -suite, according to the simulation results of relationship of common -rail volume, pressure build -up time and the amount of pressure fluctuations .21ml optimal common -rail volume was chosen, according to the simulation results of relationship of common -rail length -diameter ratio and the amount of pressure fluctua -tions.The fitness function of common -rail pressure was established .According to the relationship of common -rail pressure fitness and length -diameter ratio, 11mm optimal internal diameter and 220mm optimal length of common -rail were chosen.The theoretical basis was provided for the common -rail design.