天然气发动机缸内喷气系统设计及试验研究  

Design and Experiments of an In-Cylinder Direct-Injected CNG Engine

作　　者：郭辉[1] 张振东[1] 李萌[1] 孙嗣炎[1] 方祖华[1] 

机构地区：[1]上海理工大学机械学院,上海200093

出　　处：《车用发动机》2004年第6期5-8,共4页Vehicle Engine

基　　金：上海市教委发展基金资助项目(02GK06)

摘　　要：介绍了将一台单缸化油器式汽油机改造为缸内直喷式天然气发动机的喷气系统设计及标定、点火系统改进、控制系统组成及压缩比的优化;试验结果表明,电控缸内喷气配合压缩比优化是提高天然气发动机充气效率、恢复功率的有效措施。An in-cylinder, direct-injected CNG engine has been developed based on a single-cylinder gasoline engine with a carburetor. This paper introduces the design and calibration of CNG supply system, the improvement of ignition system, the configuration of control system and the optimization of compression ratio of the engine. The test results show that the volumetric efficency and the power output of the engine have been greatly improved with the help of the electronic direct injection of CNG and the optimization of the compression ratio.

关 键 词：天然气发动机 直接喷射 点火系统 控制系统 压缩比 

分 类 号：TK411.5[动力工程及工程热物理—动力机械及工程]