Effects of natural gas injection timing and split pilot fuel injection strategy on the combustion performance and emissions in a dual-fuel engine fueled with diesel and natural gas

摘要

Considering the drawbacks of a dieselatural gas dual-fuel combustion at low load usually is relative to undesirable natural gas-air-diesel mixture distributions in-cylinder and natural gas supply method and pilot diesel injection strategy are believed to play a critical role in the process of mixture formation in the cylinder. So an experimental study has been conducted to explore the effects of natural gas injection timing and split pilot injection strategy on the combustion performance and emissions characteristics in a dieselatural gas dual-fuel engine.