Icing resistant reduced noise air motor exhaust

Abstract

The induction exhaust has an exhaust manifold 16 and a muffler 22 . In the instant invention, warm ambient air is drawn into the muffler 22 . Heat from this external source is conducted through the finned manifold 16 to melt ice that can form inside the manifold 16 during the exhaust cycle. The exhaust manifold 16 bolts to the side of the air motor air valve 14 and serves to direct, muffle and diffuse the air motor exhaust using a deflection plate, a diffraction plate and an expansion chamber is provided in the manifold to direct the exhaust out of the air valve and down the center of the muffler 22.

1 . An exhaust for use with a reciprocating air motor having an air valve, said exhaust comprising:
 a finned exhaust manifold;   a muffler;   air passages for drawing warm ambient air into said muffler so that heat from said warm ambient air is conducted through said finned manifold to melt ice that can form inside the manifold during the exhaust cycle.   
   
   
       2 . The exhaust of  claim 1  wherein said manifold directs the exhaust air stream into said muffler such that it creates a thin high velocity air stream creating a low pressure region on both sides of the stream due to the Bernoulli effect creating a pressure differential which draws the warm external air into the exhaust system. 
   
   
       3 . The exhaust of  claim 1  further comprising a reverberation chamber after the muffler exit allowing the sound waves to disperse over time while minimizing backpressure. 
   
   
       4 . The exhaust of  claim 1  wherein said exhaust manifold bolts to the side of said air motor air valve and serves to direct, muffle and diffuse the air motor exhaust. 
   
   
       5 . The exhaust of  claim 1  further comprising a deflection plate for dispersing the initial exhaust blast as it leaves said air valve and enters said exhaust manifold. 
   
   
       6 . The exhaust of  claim 1  further comprising a diffraction plate comprising many small holes in said exhaust manifold to diffract and disperse the exhaust blast to reduce noise and exhaust velocity. 
   
   
       7 . The exhaust of  claim 1  further comprising an expansion chamber in said manifold to direct the exhaust out of said air valve and down the center of said muffler.