汽车发动机在节能和排放领域的新进展

回顾 内燃机的发展历程，并对为降低内燃机排放而采取各种动力的汽车进行分析，指出燃油汽车仍具有很大的发展前景，论述了汽油机从化油器式直至均燃直喷式的发展历程，并阐述了它们各自的优缺点；指出了柴油机为达到提高功率密度、降低燃油消耗及改善环境的目的应采取的措施。

New Development of Energy Save and Emission of Automotive Engine

The developing history of internal combustion engine is reviewed,all kinds of motor vehicles to reduce emissions are analyzed.It is noted that fuel-combusted motor vehicles have still a better developing prospect.Explained the developing history of gasoline engines from carburetor type to homogeneous combustion and direct injection type,their advantages and disadvantages are also explained respectively.The measures necessary to be adopted for increasing the power density,reducing the fuel consumption and improving the environment performance of diesel engines are introduced.