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研究2.0 T直喷汽油机的喷油正时、喷油压力、进排气相位和点火提前角对发动机动力性、燃烧特性和经济性的影响。研究结果显示,发动机的动力性达到了设计目标。在2 000 r/min、200 kPa BMEP(Brake Mean Effective Pressure,平均有效缸内压力)工况,发动机的比油耗可以达到375 g/k Wh,达到国际先进水平。
The effects of fuel injection timing, injection pressure, intake and exhaust phase and ignition timing on the dynamic, combustion characteristics and economy of 2.0 T direct injection gasoline engine were studied. The results show that the engine power reached the design goal. At 2000 r / min and 200 kPa BMEP (Brake Mean Effective Pressure) conditions, the engine fuel consumption can reach 375 g / k Wh, reaching the international advanced level.