Design and Analysis of Inlet Manifold of a Four-Stroke Petrol Engine by Increasing Rate of Tumble Flow and Reducing Air Pollution by Using Aerofoil PlatePages 62-69
Abstract:
The design and analysis of an inlet manifold play a critical role in optimizing the performance of a four-stroke petrol engine. This research focuses on enhancing the tumble flow in the combustion chamber through modifications to the inlet manifold and introducing an aerofoil plate to improve air-fuel mixing. By increasing the tumble flow rate, the air-fuel mixture homogenization is enhanced, leading to more efficient combustion, improved thermal efficiency, and reduced engine emissions. In this study, an aerofoil-shaped plate is integrated into the inlet manifold to direct and increase the tumble motion of the intake air. The impact of this design on the flow characteristics within the combustion chamber is analyzed using Computational Fluid Dynamics (CFD) simulations. The aerodynamic properties of the aerofoil plate help streamline airflow, enhancing turbulence, which promotes better mixing of fuel and air. This improves combustion efficiency, reduces unburnt hydrocarbons, and decreases exhaust emissions. The results of this analysis show a significant improvement in engine performance parameters such as combustion efficiency, fuel consumption, and emission reduction, all achieved without compromising power output. The proposed design provides an effective method for enhancing tumble flow, thereby offering a potential solution for reducing air pollution in petrol engines while maintaining performance.
Keywords: Inlet Manifold, Four-Stroke Petrol Engine, Tumble Flow, Air Pollution Reduction, Aerofoil Plate, CFD Simulation, Emission Reduction, Engine Performance
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