Induction system for internal combustion engine

摘要

An induction system for a multicylinder internal combustion engine includes a log for receiving air drawn into the engine and individual runners extending from the log to intake ports of the engine. An antireversion air manifold supplied with air by the log has flow control valves and branches extending between a main passage of the antireversion air manifold and the individual intake manifold runners, with the branches connecting with the runners at positions situated between individual throttle plates and intake valves.