Diesel Emission Reduction using High Boost and High EGR Rate in a Single Cylinder Engine

摘要

The authors carried out an experimental study of diesel combustion using a single cylinder test engine in order to develop a method of reducing exhaust emissions of heavy-duty diesel engines. Engine performance and exhaust emissions were measured using a broad and high EGR rate under high boost conditions. The test engine had an independent supercharger that raised the boost pressure to 500 kPa, and the EGR system increased the EGR rate by 40% under a 450 kPa boost condition. Various load and engine speeds were tested. Results showed that NOx was reduced drastically without increasing Particulate Matter (PM).