CAJ | 학술논문

基于某高压共轨柴油机进行CNG/柴油双燃料发动机的燃烧特性研究。在不同工况下通过改变引燃柴油的喷射参数及空燃比改变燃烧特性，对发动机燃烧压力进行实时测量，对比分析双燃料发动机与柴油机的燃烧差异及引燃油量、引燃时刻和空燃比对双燃料发动机燃烧的影响。基于试验得出双燃料发动机的放热率、起燃时刻及燃烧持续期等特征，从而给出双燃料发动机性能提升建议。
기우모고압공궤시유궤진행CNG/시유쌍연료발동궤적연소특성연구。재불동공황하통과개변인연시유적분사삼수급공연비개변연소특성，대발동궤연소압력진행실시측량，대비분석쌍연료발동궤여시유궤적연소차이급인연유량、인연시각화공연비대쌍연료발동궤연소적영향。기우시험득출쌍연료발동궤적방열솔、기연시각급연소지속기등특정，종이급출쌍연료발동궤성능제승건의。
The combustion characteristics of a diesel/CNG dual fuel engine based on Cr diesel engine is studied in this paper. At different working conditions, diesel injection parameter and A/F ratio are altered to change combustion characteristic and measure the combustion pressure in real-time, the difference in combustion characteristic of the dual fuel engine and the diesel engine as well as the influence of the pilot fuel quantity and A/F ratio on the engine combustion are compared and analyzed. Based on the test results, the heat release rate, the start time of the combustion and the duration of combustion are obtained, the methods to improve the performance of the dual fuel engine are suggested.