Intake Air Flow Characteristics of IC Diesel Engine Using Valve Mixer with Fin Arrangements

摘要

The diesel internal combustion engines require higher compression to ignite the fuel.The higher compression ratio of the diesel engine leads to better efficiency.To achieve higher compression ratio,it needs close tolerances as well as entering air inside the engine must be clean,free of debris and as cool as possible.Design of valve controller and most importantly valve mixer mechanism with fin arrangements has taken into consideration for intake air flow inside the engine.Valve controller controls the intake airflow at a significant level.Valve mixer distributes the air inside the cylinders to a form of streamline through the fin arrangements.It causes no possibility of vortex generation which is important for smooth and linear flow of air inside the engine cylinder.In addition,a swirl combustion inside the combustion chamber take place that results uniform combustion,increase the flame propagation speed,overcoming the differences of turbulent flow,reduce the flame to burn,improves the function of the flame diffusion and serves to reduce the airflow noise.Pressure distribution over the valve mixer ensures greater combustion pressure that results higher compression ratio as the air is compressed first and then the fuel injected which allow the IC diesel engine to be efficient.The research paper highlights the characteristics of valve mixer and performance analysis of engine with the arrangements.