UN APARATO DE ESCAPE PARA UN MOTOR DE COMBUSTION INTERNA.

摘要

An internal combustion engine having a plurality of in-line cylinders is provided with a series of exhaust pipes each connected to receive exhaust gases from one or more of the cylinders. A first reaction chamber receives exhaust gases from each of the exhaust pipes. A second reaction chamber extends along a first reaction chamber parallel with the line of cylinders, and has a wall in common with the first reaction chamber. A third reaction chamber surrounds and encloses the first and second reaction chambers and the exhaust pipes. An opening between the first and second reaction chambers is positioned near one of the exhaust pipes at the end of the series, and another opening between the second and third exhaust reaction chambers is positioned near an exhaust pipe at the other end of the series. This construction minimizes temperature drop in the long exhaust pipes at the ends of the series. Exhaust gases from the engine are held at high temperature for long residence time to oxidize HC and CO and thereby minimize discharge of these unwanted emissions into the atmosphere.