汽油机稀薄燃烧控制技术

车用汽油机采用稀薄燃烧技术,能大幅度地提高燃油的经济性并改善发动机排放性能,具有巨大的发展潜力,是内燃机技术发展的必然趋势。稀薄燃烧技术建立在混合气分层燃烧的基础上,在气缸内如何形成适合的混合气浓度梯度分布是稀薄燃烧的关键技术。介绍汽油机稀薄燃烧方式、PFI稀薄燃烧技术、GDI稀薄燃烧技术和汽油机稀薄燃烧控制方法。

The Control Technology on Gasoline Engine for Rareness Burning

The vehicle gasoline engine rareness burning technology,can greatly improve the fuel economy of engine emission and improve performance,and has great potential of development,it is an inevitable trend in the development of internal combustion engine technology. The rareness burning technology based on the mixture stratified combustion, and on the basis of how to form in cylinders for mixture of concentration gradient distribution is the key to the rareness burning technology. This paper introduces the gasoline en- gine combustion mode,PFI thin combustion technology,GDI combustion technology and rareness burning gasoline engine control method.