A Study on Optimization of Flow Through Venturi of a Carburettor

Modern passenger vehicles with gasoline engines are provided with different compensating devices for fuel air mixture supply. Even then there is a high fuel consumption because of many factors. One of the important factors that affect the fuel consumption is that design of carburettor. The venturi of the carburettor is important as it provides a necessary pressure drop in the carburettor device. Since different SI engine use alternative fuels such as LPG, CNG in the present day to reduce the pollution and fuel consumption. Still for a better economy and uniform fuel air supply there is a need to design the carburettor with an effective analytical tool or software. In this work two parameters namely pressure drop and fuel discharge nozzle angle of the carburettor will be analyzed using computational fluid dynamics. CFD analysis of the carburettor has been done by solid works and results obtained are used for optimum design of a carburettor.