Système d'admission/échappement
L'ouverture et la fermeture des soupapes d'admission et d'échappement créent un processus d'écoulement compressible dans lequel les ondes de pression vont et viennent à travers le système d'admission et d'échappement. L'objectif de la conception du système d'admission et d'échappement est de contrôler le transfert d'énergie acoustique des sources et son émission par le système avec une perte minimale de performances du moteur.
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