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随着汽车工业的发展和汽车保有量的持续增加,汽车给人们日常生产和生活带来了极大的便利,而目前内燃机仍是能量转换的重要方法,燃油燃烧会留下有害的残留物(例如炭烟、微粒、PM等),为此,欧洲甚至全球均颁布了非常严格的发动机尾气排放标准,促使工程师们不断降低内燃机有害微粒物的排放量。目前,欧洲排放标准主要分为Euro1、Euro2、Euro3、Euro4、Euro5和Euro6等6个等级,每个标准对尾气排放都有严格的
With the development of the automobile industry and the continuous increase of car ownership, automobiles bring great convenience to people’s daily life and production. At present, the internal combustion engine is still an important method of energy conversion. The burning of fuel leaves harmful residues Such as soot, particles, PM, etc.). To this end, Europe and even the world have promulgated very strict engine exhaust emission standards, prompting engineers to continuously reduce the emission of harmful particulate matter in internal combustion engines. At present, the European emission standards are mainly divided into six levels: Euro1, Euro2, Euro3, Euro4, Euro5 and Euro6, each of which has strict emission standards