Muffler for vehicle

Abstract

The present invention discloses a muffler for vehicle, being capable of augmenting engine's output power more than conventional tuning mufflers and more effectively eliminating exhaust noise. The muffler comprises: exhaust pressure control means connected to an exhaust manifold of an vehicle engine, for controlling pressure of the exhaust gas, the exhaust pressure control means comprising an exhaust pressure control plate, which is pivotally attached to a predetermined position of the exhaust pressure control part; and noise elimination means, which shapes generally a hollow pipe and is connected to the exhaust pressure control means part, the noise elimination means comprising a mesh pipe, through which the exhaust gas passes; a sound absorber enveloping the mesh pipe; and a casing enclosing the sound absorber, whose one end is connected to the exhaust pressure control means and the other end is connected to an outlet.

1 . A muffler for vehicle comprising 
 exhaust pressure control means connected to an exhaust manifold of an vehicle engine, for controlling pressure of the exhaust gas,    noise elimination means, which shapes generally a hollow pipe and is connected to the exhaust pressure control means part  20 ,    the noise elimination means comprising a mesh pipe, through which the exhaust gas passes; a sound absorber enveloping the mesh pipe; and a casing enclosing the sound absorber, whose one end is connected to the exhaust pressure control means and the other end is connected to an outlet.    
   
   
       2 . A muffler for vehicle of  claim 1 , wherein the sound absorber is formed by piling at least two different sound absorbing materials.  
   
   
       3 . A muffler for vehicle of  claim 1 , wherein the exhaust pressure control means comprises an exhaust pressure control plate, which is pivotally attached to a predetermined position of the exhaust pressure control part, and prevents the temperature drop in the engine's combustion room by screen an open shape of the exhaust gas passing channel from the atmosphere.  
   
   
       4 . A muffler for vehicle of  claim 1 , wherein the exhaust pressure control means comprises a tapered multi-punctured pipe inserted in the mesh pipe, whose entrance diameter is greater than an exit diameter, so that the exhaust gas introduced to the entrance receives the more pressure than the untapered pipe, during passing an exhaust gas passing channel.  
   
   
       5 . A muffler for vehicle of  claim 1 , further comprises at least one second noise elimination means connected to said noise elimination means, the second noise elimination means having the same construction as said noise elimination means.  
   
   
       6 . A muffler for vehicle of  claim 5 , further comprises a second exhaust pressure control means connected between the noise elimination means and the second noise elimination means, the second exhaust pressure control means having the same construction as said noise elimination means.  
   
   
       7 . A muffler for vehicle of  claim 2 , further comprises at least one second noise elimination means connected to said noise elimination means, the second noise elimination means having the same construction as said noise elimination means.  
   
   
       8 . A muffler for vehicle of  claim 3 , further comprises at least one second noise elimination means connected to said noise elimination means, the second noise elimination means having the same construction as said noise elimination means.  
   
   
       9 . A muffler for vehicle of  claim 4 , further comprises at least one second noise elimination means connected to said noise elimination means, the second noise elimination means having the same construction as said noise elimination means.