Based on the internal combustion engine theory and thermodynamic calculation,the theoretical feasibility of fuel feed system and control system with LPG liquid multi-spot injection is studied,and the liquid multi-spot dual-fuel electronic vehicle is designed. It can solve many problems after the evaporation premixed LPG system is modified on the current petrol vehicle,such as the decline of dynamic property,unapparent economical advantage and underused environmental protection property.
Fifth, a self bubble-out fuel feed system has been developed after a lot of researches and the start problem caused by bubbles from gasoline engine was solved thoroughly, especially in a high temperature environment.
The measured results may be used to analyse the combustion process and performance of the diesel engine, to improve the fuel feed system and to verify a mathematical model for the fuel injection process.
The manufacture process of KV495ZQ turbocharged diesel engine is presented. Fuel economy and power output of the diesel engine attain to the higher standard in the same type products of the state by transforming turbocharged system,distribution system and fuel feed system on KV495Q natural intake diesel engine(DI).