Sub-muffler for automobile exhaust system

摘要

The present invention relates to a submuffler for an exhaust system of an automobile, and more particularly, to form a plurality of inner tubes of the submuffler, to install a diaphragm having a through-hole formed between each inner tube and the exterior, and to the outside for air circulation on the exterior. An air circulation unit is provided and the exhaust system sub-muffler for exhausting the exhaust gas to the atmosphere at high speed. According to the present invention, a plurality of inner pipes of the sub muffler are formed, a diaphragm having a through hole is formed between each inner pipe and the outer tube, and an outer air circulation unit for air circulation is formed on the outer tube to exhaust the exhaust gas at high speed. Since the discharge, the combustion efficiency of the fuel is increased, the output is increased, the fuel consumption is reduced, the fuel economy is increased.