Release Time:2019-03-11  Hits:

Indexed by: Conference Paper

Date of Publication: 2010-11-05

Included Journals: Scopus、CPCI-S、EI

Page Number: 1172-1176

Key Words: gasoline engine; direct injection; working process; numerical simulation

Abstract: The working process of a gasoline direct injection engine, which was developed by the R&D Center of FAW Group, was simulated with 3-D CFD package. The movement of working fluid in the intake ports and cylinder of the engine was analyzed. The fuel injection and fuel-air mixture formation processes of two injection strategies were compared and analyzed. The formation and development processes of tumble in cylinder were studied, and the influence of tumble on fuel-air mixture formation was investigated. The fuel injection, fuel-air mixture formation and combustion processes of two injection timings were compared. The results show that under the present condition, injection timing of SOI=420 degrees CA leads to better fuel-air mixture quality around spark plug at the ignition time, and that is in favor of the ignition and the flame propagation.