喷油提前角对共轨柴油机燃用生物柴油性能的影响

Effect of Fuel Injection Advance Angle on Characteristics of Common Rail Diesel Engine Fueled with Bio-diesels

研究了高原地区(81kPa)高压共轨柴油机燃用不同混合比的生物柴油(B10,B20,B30,B50)不同的喷油提前角对发动机的经济性、动力性的影响及其变化规律。结果表明,在燃用一定比例的生物柴油后,有效燃油消耗率随喷油提前角的提前先下降后升高;发动机扭矩随喷油提前角的提前先增大后变小,不同转速下都存在一个经济性与动力性最佳的喷油提前角。

The paper discuses the variation and effect on the economy and power of the engine by adjustment of different injection advance angle of high pressure common rail diesel engine fueled with diesel different blending ratio of bio-diesels（B10,B20,B30,B50） under plateau environment（81kPa）.The results show that with advance of fuel injection advance angle,the effective fuel consumption rate decreases first and then increases and the torque of the engine raises first and then reduces on the high pressure common rail diesel engine fueled with different blending ratio of Bio-diesels,and there is an injection advance angle makes the economy and power of the engine optimal at different speeds.