New Progress of Combustion Research for Spark Ignition Gasoline Engine

The new progress of combustion research for SI gasoline engine was introduced, and the acquired achievements and the existed problems of spray-guided direct injection gasoline engine and HCCI gasoline engine were mainly discussed. The key parts such as variable-valve actuation, low penetration injector (e.g. piezoelectric) and cylinder pressure based engine control system had to be researched in order that the above-mentioned gasoline engine could be applied