Through the analysis for robert Bosch and Nippondenso common rail fuel injection system, the demands for main components of common rail fuel injection system are given, and the key technology of system design is studied.

• 通过对BOSCH公司和日本电装公司的高压共轨系统的对比分析 ,提出了高压共轨燃油系统对主要部件的要求 ,并对高压共轨系统设计时的关键技术进行了分析研究。