Research on Split Lubrication Technology for Gasoline Engines
摘要
The traditional gasoline engine lubrication system generally adopts a series oil circuit layout. The series oil circuit layout has some inherent defects, which cannot be improved through the optimization of the oil pump or lubrication system parts. Moreover, the serial oil circuit layout is becoming increasingly unsuitable for various hybrid car application scenarios. Based on the limitations of the traditional lubrication system, a new layout of gasoline engine lubrication technology - Split Lubrication System is proposed. The improvement of these defects by split lubrication system is analyzed theoretically, and the application of split lubrication system in several Hybrid car scenarios is mainly discussed. By means of simulation, the friction work saving and fuel consumption reduction effect of split lubrication system are analyzed. Combined with a certain 1.5 T supercharged direct injection gasoline engine, the research on the industrialization of split lubrication system was carried out, and the application prospect of split lubrication system was analyzed through the aspects of fuel saving effect, technology maturity and cost.