一、引言 关于柴油机的混合气形成及燃烧过程的方式,长期以来,各国柴油机工作者都遵循着“空间式”或“容积式”混合及燃烧的理论。根据这一理论,在设计燃烧室时,应将燃料均匀地喷射至燃烧室的空间,严格防止喷射至燃烧室的壁面。但自1956年西德MAN公司的摩勒(J.S.Meurer)发表了关于M—燃烧过程的论文之后,一反已往的传统,把燃料喷射至燃 I. INTRODUCTION With regard to the formation and combustion process of a mixture of diesel engines, diesel engine workers all over the world have followed the theory of “spatial” or “positive displacement” mixing and combustion for a long time. According to this theory, when designing the combustion chamber, the fuel should be uniformly injected into the space of the combustion chamber, and the wall surface sprayed to the combustion chamber should be strictly prevented. However, following the publication of a paper by J.S. Meurer from West German MAN in 1956 on the M-combustion process, an anti-past tradition of injecting fuel into the combustion