Flexible piping used for exhaust pipe of automobile engine

摘要

The present invention relates to a flexible pipe for an exhaust pipe of an internal combustion engine, and includes a metal bellows having a front open end with an adapter to be connected to a first exhaust pipe and a rear open end with an adapter to be connected to the second exhaust pipe. A metallic cylindrical outer case is arranged coaxially around the metallic bellows to form a cylindrical space. A first structure is disposed between the front end of the outer case and the front end of the bellows to form a mechanical connection. A second structure is disposed between the rear end of the outer case and the rear end of the bellows to form a mechanical connection. At least one of the first structure and the second structure includes a spring member to elastically connect the bellows and the outer case.