Trends and Present Status of the High-pressure Common Rail Fuel Injection System for Diesel Engine

With the increasingly strict emission regulation and the development of diesel engine electronic control techonology, as a high flexible fuel injection system, the high-pressure common rail (CR) injection system has become a trend of the diesel engine technology for its remarkable advantages. The basic construction, operationg principle and special characteristics are introduced in details in this paper, and the outline of the current status is given. Finally, the development direction is discussed by analyzing the study of high pressure common-rail system at home and abroad.