Design and Optimization of Intake Manifold of Carburetor Using Computational Fluid Dynamics | |
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( Volume 3 Issue 7,July 2017 ) OPEN ACCESS | |
Author(s): | |
Mukesh Kumar Verma, Devvrat Verma, Annand Shukla | |
Abstract: | |
Intake manifold is the part of an engine that supplies the fuel/air mixture to the cylinder. the intake manifold is essential for the optimal performance of an internal combustion engines. Intake manifold is the breathing system of the car engine which supplies air to the engine cylinders where the combustion of the fuel occurs. The primary function of the intake manifold is to evenly distribute the combustion mixture (or just air in a direct injection engine) to each intake port in the cylinder head. Even distribution is important to optimize the efficiency and performance of the engine. It may also serve as a mount for the carburetor, throttle body, fuel injectors and other components of the engine. Due to the downward movement of the pistons and the restriction caused by the throttle valve, in a reciprocating spark ignition piston engine, a partial vacuum (lower than atmospheric pressure) exists in the intake manifold. This review paper has main aim is the gain understanding of the flow characteristics inside an intake manifold which is fitted with an intake restrictor. Geometrical design of intake manifold is very important for the good performance of an IC engine. Unequal velocity distribution of intake air of runner’s outlets of intake manifold makes it less efficient. The reported works aims to makes this unequal velocity distribution of velocity in nearly equal manner with increase of velocity at outlet without any major modification in design of intake manifold. To achieve the desired improve result two other models of same intake manifold with different design configuration are made in software then examine the results of this two models with original one to find out pressure and velocity losses. After analysis of models it noticed that the hidden projections of nut, projected stiffeners and depth cuts o extreme of plenum causes pressure loses due to which uneven distribution takes place at runner’s outlets. |
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