MUFFLER FOR AN INTERNAL COMBUSTION ENGINE

摘要

The invention provides a muffler for internal combustion engine having excellent durability (resistance to scattering) even when being exposed to a high-temperature exhaust gas and capable of maintaining high sound absorption coefficient over a long period. Such a muffler comprises a metal tube provided with a plurality of small holes, an inorganic fiber sound absorbing material arranged on the outer periphery thereof and a metal shell covering the outside of the sound absorbing material, in which a scattering prevention member is disposed between the metal tube and the sound absorbing material. The sound absorbing material is a laminated structure of crystalline alumina fiber mat and glass fiber mat. As the scattering prevention member, there is used a stainless woven wire cloth, a woven fabric made from inorganic fiber and a metal foil. <IMAGE>