柴油/LNG双燃料发动机台架试验性能分析

The bench test performance analysis of diesel /LNG dual engine

天然气(LNG)资源丰富,是汽车较为理想的替代燃料。文章以LNG作为汽车燃料,通过发动机台架试验,对柴油/LNG双燃料汽车发动机与原发动机的性能做对比分析,分析结果表明,所研究的柴油/LNG双燃料发动机动力性较原机下降不明显,但经济性大幅提高,排放性总体较原机呈现好的态势。

As the use of natural gas can relieve shortage of oil resource and resolve the contradiction between supply and demand of oil products, liquefied natural gas （LNG） was utilized as an alterna- tive automotive fuel. A comparative analysis of power performance between diesel/LNG dual engine and original diesel engine was conducted via an engine bench test. The analysis results show that the fuel consumption of diesel/LNG dual fuel engine decreases considerably while the power perform- ance has a small decline compared to the engine decreases compared to that of the o a desirable alternative automotive fuel. original machine. The emission of diesel / LNG dual fuel riginal engine. The results also indicate that the gas fuel is