液氮发动机及其性能分析

Liquid nitrogen engine and its performance analysis

介绍了液氮发动机的基本原理以及国内外发展概况。参照内燃机性能评价方法,探讨了液氮发动机的性能评价指标。根据经过改造的采用旋转阀式进气机构的单缸发动机实验结果,从输出功率、能量利用率和气耗率等方面分析了液氮发动机的动力性能和经济性能。发现液氮发动机在较低转速下有较好的动力性和经济性。

The basic principal of the liquid nitrogen engine and the status quo are present in this paper. In referring to the evaluation method of the internal combustion engine, the performance criterions of such an engine are discussed. According to experimental results of a reconstructed single cylinder prototype engine equipped with circumrotating valve, the dynamic and economie performances of liquid nitrogen engine are analyzed by the power output, the ratio of energy conversion and the gas consumption ratio. It can be concluded that the liquid nitrogen engine has a better performance in lower engine speed.