Abstract: The application of exhaust gas turbocharged technology improves the intake efficiency and power performance of electronic control gasoline engine, at the same time, it forces the relevant system of engine to make necessary changes in structure and function. In this paper, the differences of structure and function between natural aspirated engine and turbocharged engine in intake, exhaust, cooling, lubrication, PCV, EGR, EVAP and other relative systems are described, thus, it provides necessary guidance for the maintenance and repair of electronic control gasoline engine.

Key words: Turbocharged, Gasoline engine, System structure, Influence

摘要： 废气涡轮增压技术的应用,提升了电控汽油发动机的进气效率和动力性能,但同时也迫使发动机的相关系统在结构组成和功能实现上做出必要的改变。文章采用对比形式,阐述了自然吸气发动机和涡轮增压发动机在进气、排气、冷却、润滑、PCV、EGR、EVAP等相关系统的结构组成和功能实现上的差异,从而为电控汽油发动机的维护和维修提供必要的指导。

关键词: 涡轮增压, 汽油发动机, 系统结构, 影响