Browse Publications Technical Papers 2008-36-0331

Intake Ports Development: Euro IV Diesel Engine Cylinder Head 2008-36-0331

The demand for low level emission engines increase the need for new technology development due to the necessity to fulfill legislation requirements without fuel consumption and engine performance deterioration. Diesel engine power, torque and fuel consumption are greatly influenced, among other variables, by the combustion chamber and piston bowl shape, the engine compression ratio and the shape and size of the intake and exhaust ports and valves. So, the intake port design optimization, taking into account the air mass flow and swirl are of great interest. In this sense, this work describes the procedures and results of the intake port design and optimization through CAD and CFD modeling and also with flow test bench results. It is showed the improvements in a four valve cylinder head, regarding the requirements of an Euro IV Diesel Engine.


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