Design and analysis of inlet manifold of a four stroke petrol engine by increasing tumble flow rate and reducing air pollution using aerofoil plate

摘要

This Research targets the moment of tumble and swirl function of air flow in cylinder. It is explained by introducing aerodynamically efficient aerofoil plate in the path of inlet stream of air with fuel mixture. In normal level, Engine have cylinder and inlet manifold geometry that lead to tumble motion and better mixture of air and fuel. The motion of tumble is entirely different than traditional method. The new level research carries the manifold with 8mm and 10mm aerofoil plate for the amalgamation of fuel and air. By the low level speed in any prevailing engines the movement of tumble is practiced. To have a complete combustion stimulated by the process of mixing air and fuel molecules with the observation at lower engine speed and better mixing is the Moto of research. The performance of the engine increase and complete combustion leads to reduced emission (CO, HC, and CO 2 ) and small change in volumetric efficiency. It is also proved that, increased tumble movement introduces aerofoil plate that helps the flame spread which used into constant heat transfer rate. This suggests to a new combustion technique that should be developed to yield improved primary combustion processes in-side the engine with slightly increase in the break thermal efficiency.