PIPE STRUCTURE AND EXHAUST SYSTEM

摘要

The pipe structure for an exhaust system of an internal combustion engine comprises an outer pipe (1) comprising a cylindrical section having a first end (13) and a second end (14), and an inner pipe (2) that is arranged coaxially inside the outer pipe (1) so that an empty space (5) is formed between the outer pipe (1) and the inner pipe (2). The inner pipe (2) comprises an outward projection (6,12) for engaging the inner pipe (2) with a radial projection (3,11,18) of the outer pipe (1).