noun (Automotive engineering: Vehicle components, Engine, transmission, and exhaust) Scavenging is the removal of exhaust gases from an engine cylinder. ⇒ A part of the compressed air can be easily diverted to ensure complete scavenging of the exhaust gases. ⇒ Scavenging is the process by which exhaust gases are expelled from the combustion chamber and fresh charge is introduced. ⇒ The long primary exhaust tubes help promote torque and exhaust scavenging.
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