汽车燃油蒸发排放控制系统

Vehicle Fuel Evaporative Emission Control System

文章以汽车排放污染来源及危害入题,阐述了控制燃油蒸发排放污染的重要意义,列举了燃油蒸发排放的主要来源及燃油蒸发控制的几种方法,并详细讨论了燃油蒸发排放控制系统的功能、结构及常见问题的解决方法。对于燃油蒸发控制的元件活性炭罐、炭罐控制阀的重要作用及工作原理,也做出了详细的阐述。文章最后介绍了一种燃油蒸发控制装置——车载加油蒸气回收装置,可供汽车产品设计及使用时作为参考。

Taking the pollution of vehicle evaporative emission and its harm as the subject, the paper describes the significance of evaporative emission control system （EVAP） and lists several methods of controlling evaporaliw, emission, major sources of fuel evaporative emission as well as gives a delailed discussion about functions, principle, and solution of ecmunon faults for EVAP. Moreover, il explains the functions and principle of Ihe charcoal canister and Canister-Purge Valve. Finally, the paper introduces on-board refueling vapor reeovery used in recovering fuel, which can be regarded as a reference in system design of automobile products.