EXHAUST GAS REACTION DEVICE FOR MULTI-CYLINDER INTERNAL COMBUSTION ENGINE

摘要

An exhaust gas reaction chamber has an inner chamber surrounded and encompassed by an outer chamber, and a "U" shaped pipe extends through both chambers and has a single feed port positioned within the inner chamber. Both ends of the pipe receive exhaust gases discharged through two paired exhaust passages discharging through a single port. A thick wall housing surrounds the reaction chamber but is spaced from the thin metal walls which form the reaction chamber. The outer chamber heats a lean intake mixture supplied to the main combustion chambers of the engine and heats a rich mixture suppled to auxiliary combustion chambers of the engine.