Exhaust Manifold Structural Analysis Focusing Mass Reduction for Vehicular Diesel Engine Application

摘要

This Paper presents a study of weight reduction in an exhaust manifold of a four cylinders, 3.0 liters diesel engine. The mass of the entire engine shall be reduced from the current 290 kg to 260 kg and many components will be redesigned focused on this target. Basically, the wall thickness and flanges of the exhaust manifold will be redesigned and reduced to a value which shall guarantee the component durability. The calculations will be made determining the life cycle of the proposed exhaust manifold, checking if no structural problems can occur. The shape and size of the ducts remain unchanged for performance purposes and no material changes will be considered for the new component.