EXHAUST SILENCER
PURPOSE:To provide an exhaust silencer capable of maintaining stable sound insulating effect by absorbing the elongation of punching metals due to thermal expansion to prevent thermal deformation and always holding a sound insulating material properly. CONSTITUTION:In an exhaust silencer in which a...
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Zusammenfassung: | PURPOSE:To provide an exhaust silencer capable of maintaining stable sound insulating effect by absorbing the elongation of punching metals due to thermal expansion to prevent thermal deformation and always holding a sound insulating material properly. CONSTITUTION:In an exhaust silencer in which a sound insulating material 6 is mounted extensively on the inner periphery of an external plate of an exhaust pipe and which holds the sound insulating material 6 by punching metals 7, at least one end in longitudinal direction of the punching metals 7 among four sides is fixed to the inner periphery of the external plate, and the others are supported freely. In this way, the punch metals can be extended freely to a free support end side due to thermal expansion even if they are exposed to hot exhaust gas after the punching metals 17 pass through a monolithic catalyst 10, and the elongation due to thermal expansion can be absorbed effectively. Accordingly the thermal deformation of the punching metals 7 is prevented, the sound insulating material 6 is always maintained in good condition by the punching metals 7, and stable sound insulating effect is maintained by the sound insulating material 6. |
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