Structure of exhaust system for CDA engine

摘要

The present invention relates to an exhaust system structure and, more specifically, to a structure of an exhaust system for a CDA engine which is characterized by comprising three baffles horizontally combined inside a main sound absorber and dividing inside of the main sound absorber into a first space to a fourth space; a first connection pipe arranged on the outside of the main sound absorber to connect a second space and a third space of the main sound absorber, and including a path in which exhausted gas flows inside; a second connection pipe arranged on the outside of the main sound absorber to connect the second space and the third space of the main sound absorber, including a path in which the exhausted gas flows inside, and formed relatively shorter than the first connection pipe; a first valve combined on the path of the first connection pipe to open and close the path of the first connection pipe; and a second valve combined on the path of the second connection pipe to open and close the path of the connection pipe, wherein the baffle combined between the first space and the second space and the baffle combined between the third space and the fourth space are characterized by including punch hole or multiple holes for the exhausted gas to flow, thereby maintaining existing structure of the exhaust system, and overcoming low frequency resonance troubles according to application of CDA mode.