提高点燃式甲醇发动机效率的研究

Study on Efficiency Improvement of Spark Ignition Methanol Fuelled Engine

本文根据甲醇燃料气化潜热大和辛烷值高的特点,在CA1102单缸发动机上着重研究了通过合理的进气预热和提高压缩比来提高点燃式甲醇发动机的性能和效率。研究结果表明,稀燃和高压缩比紧密结合是进一步提高甲醇发动机效率和改善性能的有效手段,而合理的进气预热则为全醇发动机采取稀燃和提高压缩比创造了基本条件。

In accordance with the features of methanol fuel-high latent heat of vaporization and high octane number, the study was carried out on CA1102 single cylinder engine for improving the efficiency and performance of spark ignition methanoi engine by suitable intake charge preheating and increasing compression ratio. The result of study shows that lean burning combined with high compression ratio is an effective means to improve the engine efficiency, and suitable preheating of intake charge provides an essential condition to use lean burning and high compression ratio for neat methanoi engine.