Muffler with cyclonic plates

Abstract

A muffler comprising a multiplicity of plates, each plate having openings for directing gas flow is provided. The present invention's objective is to reduce engine noise while minimizing back pressure on the engine. It uses a series of plates with deflecting elements fixedly attached to the plates. These deflectors are intended to move the exhaust gases from a longitudinal motion to a cyclonic or swirling motion, so as to translate the gases longitudinal motion into a circular motion. This energy translation will reduce the gas' pressure as it exits the muffler and reduces the engine's noise, without the necessary use of sound absorbing materials or a resonating chamber. This energy translation does not affect the rate

1 . An engine muffler comprising,
 at least one elongated chamber bordered by a housing, with an inlet end and an outlet end and a longitudinal axis, at least one planar plate located inside the chamber and fixedly attached to the housing, said plate positioned perpendicular to the longitudinal axis;   at least one slot in each plate; and   at least one exhaust gas deflector on each plate, having a fixed leading edge and a free trailing edge positioned in proximity to a slot, so as to deflect the gas passing though the slot in a cyclonic direction.   
   
   
       2 . An engine muffler as in  claim 1  with at least two plates, where the angle of the gas deflector on each successive plate is at least five degrees different to the angle of the deflector of the previous plate, so as to create a modified cyclonic direction with each plate. 
   
   
       3 . An engine muffler as in  claim 2 , where the direction of the gas deflectors on each successive plate is approximately opposite to the direction of the deflectors of the previous plate, so as to create alternating cyclonic motion with each plate. 
   
   
       4 . An engine muffler as in  claim 2 , where the angle of the gas deflectors on each successive plate is decreased with each successive plate, so as to create an increased cyclonic motion with each plate. 
   
   
       5 . An engine muffler as in  claim 1  where the muffler has a varying cross section along the longitudinal axis. 
   
   
       6 . An engine muffler as in  claim 1  where the muffler has an increasing cross sectional area along the longitudinal axis. 
   
   
       7 . An engine muffler as in  claim 1  where the muffler contains six plates. 
   
   
       8 . An engine muffler as in  claim 1  where the plates have at least four slots and four deflectors. 
   
   
       9 . An engine muffler as in  claim 1  where the plates are approximately one eighth of an inch thick. 
   
   
       10 . An engine muffler as in  claim 1  where the slots are approximately one inch square. 
   
   
       11 . An engine muffler as in  claim 1  where the muffler has an inlet tube connected to the inlet section of the chamber. 
   
   
       12 . An engine muffler as in  claim 1  where the inlet tube has perforations in it, to disturb the air flow through the muffler. 
   
   
       13 . An engine muffler as in  claim 1  where the gap between any two plates is fixed. 
   
   
       14 . An engine muffler as in  claim 13  where the gap between any two plates is approximately three inches. 
   
   
       15 . An engine muffler as in  claim 1  where gap between plates varies. 
   
   
       16 . An engine muffler of  claim 1  comprising,
 at least one elongated chamber bordered by a housing, with an inlet end and an outlet end and a longitudinal axis, at least one planar plate located inside the chamber and fixedly attached to the housing mechanical means, said plate positioned perpendicular to the longitudinal axis;   a multiplicity of slots in each plate; and   each slot having an exhaust gas deflector on each plate, wherein each gas deflector having a fixed leading edge and a free trailing edge positioned in proximity to a slot, so as to deflect the gas passing though the slot in a cyclonic direction, and each gas deflector on each plate being positioned at a similar angle to each other.