BENDABLE DUPLEX TUBE FOR AN EXHAUST PIPE BY USING A SOUND ABSORBING MEMBER INSERTED INTO THE OUTER DIAMETER OF AN INNER PIPE AND AN OUTER PIPE FITTED TO THE OUTER DIAMETER OF THE SOUND ABSORBING MATERIAL

摘要

PURPOSE: A bendable duplex tube for an exhaust pipe is provided to minimize wrinkles and cracks generated in a sectional area of inner and outer pipes by bonding one side between the inner and outer pipes in bending the duplex tube at the predetermined angle. CONSTITUTION: In a bendable duplex tube(1) of an exhaust pipe, a sound absorbing material(11) is fitted to the outer diameter of an inner pipe(10) of the duplex tube and an outer pipe(12) is inserted to the outer diameter of the sound absorbing material. The duplex tube installed with the sound absorbing material is disposed between the inner and outer pipes. One side between the inner pipe inserted with the sound absorbing material and the outer pipe is bonded. A bonding process between the inner and outer pipes of the duplex tube uses an adhesive agent.