Computational Analysis of Optimal Matching between Combustion Chamber and Fuel Injector in Small Diesel Engines
The design of the combustion chamber and fuel injector significantly impacts the combustion effi-ciency,power output,fuel economy,and emission performance of diesel engines.Utilizing simulation technolo-gy,an in-depth analysis of in-cylinder flow and combustion was conducted on the combustion chamber and fuel injector of the current prototype.Based on this analysis,an optimized matching scheme for the combustion chamber and fuel injector was proposed to enhance the benchmark point power.The results indicated that,while maintaining the intake and exhaust system,camshaft,and fuel injection volume constant,the optimized design of the combustion chamber and its matching with the fuel injector led to an increase in effective power.
Small diesel engineCombustion chamber optimizationFuel injectionComputational analysis