1.前言火花点火层状充气发动机是燃烧室内混合气的浓度分布发生层状变化,用装在可燃混合气层的火花塞点火,而后火焰沿着扩散形成的可燃层向混合气传播的方式工作的发动机。采用这种方式,总空燃比虽然很稀,已超过了可燃极限,但在局部却可形成可燃混合气层。因而不同于供给相同浓度混合气的普通汽油机,部分负荷时无需节流进气。 1. INTRODUCTION The spark-ignition layered gas-filled engine is a layered change in the concentration distribution of the gas mixture in the combustion chamber, ignited by a spark plug mounted on the combustible gas mixture layer, and then operated along the diffusion of the combustible layer to the gas mixture engine. In this way, the total air-fuel ratio, although very dilute, has exceeded the flammability limit, but locally forms a combustible gas mixture. Thus unlike conventional gasoline engines that supply the same concentration of gas mixture, there is no need to throttle the intake air at part load.