Patent ID: 9133753
Filing Date: 2015-09-15
Classification: F01N

Abstract:
1. A muffler for an exhaust gas system of an internal combustion engine, comprising: a muffler housing having a housing wall, having at least one muffler housing intermediate wall, having at least one inlet pipe guided through the housing wall and having at least one outlet pipe guided through the housing wall, whereby the inlet pipe has at least one outflow opening, via which the exhaust gas can flow from the inlet pipe to the outlet pipe, within the muffler housing, at least one coupling chamber is provided having a central axis and having a chamber wall, in which the inlet pipe and the outlet pipe discharge, the chamber wall being spaced apart from the housing wall whereby the chamber wall, which is different from the housing wall, together with the inlet pipe and the outlet pipe, forms a flow channel from the inlet pipe to the outlet pipe, whereby the chamber wall surrounds the inlet pipe or the outlet pipe with respect to the central axis in a circumferential direction U, and the chamber wall is connected only indirectly over at least the inlet pipe or the outlet pipe or the muffler housing intermediate wall with the housing wall, whereby the chamber wall of the coupling chamber has a diameter D, and the inlet pipe and the outlet pipe each have an outer diameter d, whereby for the ratio D/d, 20/10>=D/d>=11/10 or 18/10>=D/d>=11/10 applies.