Integration of exhaust manifold with engine cylinder head towards size and weight reduction

In this research, a new exhaust manifold and its cooling jackets is first designed for the integrated exhaust manifold into cylinder head (IEMCH) for a turbocharged engine. Then, the gas exchange and flow analysis is carried out numerically to evaluate the proper conditions for the exhaust gas and the coolant stream respectively. Finally, the entire engine parts are thermally analyzed to assure their acceptable temperature. The obtained results are compared to the base engine conditions, indicating that the new engine with IEMCH may well satisfy all its thermal limitations.