Muffler diffuser

Abstract

An improved muffler diffuser insert adapted to be used with, and mounted within, an exhaust muffler for effectively helping to reduce noise and back pressure attendant to engine operation. The diffuser comprises a cap end for abutting against an exhaust end of the muffler when the muffler diffuser is mounted within the muffler, which has at least one exhaust opening defined therein for cooperation with the exhaust end of the muffler so as to permit an exhaust flow from the exhaust end of the muffler to pass through. A body portion is connected to the cap end, and defines therein an elongated opening for permitting the exhaust flow from the muffler to pass through. A distal end of the body portion comprises an outermost end and two sound deflection portions positioned on either side of the outermost end for use in deflecting sound waves contained in the exhaust flow so as to enhance noise diffusion.

1 . A muffler diffuser adapted to be used with and mountable within a muffler comprising:
 a cap end having at least one exhaust opening defined therein for permitting an exhaust flow from the muffler to pass through, the cap end abutting against an exhaust end of the muffler when the muffler diffuser is mounted within the muffler;   a body portion connected to the cap end, the body portion defining therein an opening for permitting the exhaust flow from the muffler to pass through, and having at least one sound deflection portion for use in deflecting sound waves contained in the exhaust flow so as to enhance noise diffusion; and   means for securing the muffler diffuser within the muffler.   
   
   
       2 . The muffler diffuser of  claim 1 , wherein the cap end is of a substantially circular configuration. 
   
   
       3 . The muffler diffuser of  claim 2 , wherein the body portion of the muffler diffuser is adapted to be longitudinally mounted and aligned within a longitudinal axis of the muffler. 
   
   
       4 . The muffler diffuser of  claim 3 , wherein the cap end is perpendicularly positioned in relation to the body portion. 
   
   
       5 . The muffler diffuser of any one of  claims 1  to  4 , wherein the sound waves contained in the exhaust flow are deflected back into the muffler. 
   
   
       6 . The muffler diffuser of  claim 1 , wherein the cap end possesses a plurality of openings for permitting the exhaust flow from the muffler to pass through. 
   
   
       7 . The muffler diffuser of  claim 1 , wherein the body portion further comprises at least one screw opening defined in side portions thereof for receiving securing screws, whereby the muffler diffuser can be secured within the muffler. 
   
   
       8 . The muffler diffuser of  claim 1 , wherein the at least one sound deflection portion is positioned at a 45° angle in relation to an outmost point of the body portion. 
   
   
       9 . The muffler diffuser of  claim 1 , wherein the opening of the body portion is an elongated opening, which is greater than three times a diameter of the at least one exhaust opening. 
   
   
       10 . A muffler diffuser adapted to be used with and mountable within a muffler comprising:
 a cap end abutting against an exhaust end of the muffler when the muffler diffuser is mounted within the muffler, the cap end having at least one exhaust opening defined therein for cooperation with the exhaust end of the muffler, so as to permit an exhaust flow from the exhaust end of the muffler to pass through;   a body portion connected to the cap end, the body portion defining therein an elongated opening for permitting the exhaust flow from the muffler to pass through, and having at least one sound deflection portion for use in deflecting sound waves contained in the exhaust flow so as to enhance noise diffusion; and   means for securing the muffler diffuser within the muffler.   
   
   
       11 . A muffler diffuser adapted to be used with and mountable within a muffler comprising:
 a cap end abutting against an exhaust end of the muffler when the muffler diffuser is mounted within the muffler, the cap end having at least one exhaust opening defined therein for cooperation with the exhaust end of the muffler, so as to permit an exhaust flow from the exhaust end of the muffler to pass through;   a body portion connected to the cap end, the body portion having a distal end portion which comprises an outermost end and two sound deflection portions positioned on either side of the outermost end for use in deflecting sound waves contained in the exhaust flow so as to enhance noise diffusion, the body portion also defining therein an elongated opening which is greater than three times a diameter of the at least one exhaust opening for permitting the exhaust flow from the muffler to pass through; and   means for securing the muffler diffuser within the muffler.   
   
   
       12 . The muffler diffuser of  claim 10 , wherein the cap end is perpendicularly positioned in relation to the body portion. 
   
   
       13 . The muffler diffuser of  claim 10 , wherein the opening of the body portion is an elongated opening which is greater than three times a diameter of the at least one exhaust opening. 
   
   
       14 . The muffler diffuser of  claim 10 , wherein the body portion further comprises at least one screw opening defined in side portions thereof for receiving securing screws, whereby the muffler diffuser can be secured within the muffler. 
   
   
       15 . The muffler diffuser of  claim 11 , wherein the sound deflection portions are positioned at a 45° angle in relation to the outermost end. 
   
   
       16 . The muffler diffuser of  claim 10 , wherein the cap end possesses a plurality of openings for permitting the exhaust flow from the muffler to pass through. 
   
   
       17 . The muffler diffuser of  claim 10 , wherein the cap end is of a substantially circular configuration. 
   
   
       18 . The muffler diffuser of  claim 10 , wherein the body portion of the muffler diffuser is adapted to be longitudinally mounted and aligned within a longitudinal axis of the muffler.