Patent ID: 6364054
Filing Date: 2002-04-02
Classification: F01N

Abstract:
A high performance muffler for modifying sound waves of internal combustion engine exhaust gases comprising; an inlet adapted for connection to an internal combustion engine exhaust system for receiving internal combustion engine exhaust gases, a muffler body connected to the inlet for receiving internal combustion engine exhaust gases, said muffler body having a shell, said shell having a width greater than its height, said shell's width is greater than two times the height of the shell and less than three times the height of the shell, said shell having a pair of spaced apart opposed panels, a flow path of exhaust gases through the muffler body, an outlet connected to the muffler body to receive exhaust gases from the muffler body, a first expansion chamber in the muffler body adjacent to the inlet to receive exhaust gases from the inlet to allow the exhaust gases to expand, said first expansion chamber extending across the width of the muffler body, a first reduced opening in the muffler body communicating with the first expansion chamber to receive exhaust gases from the first expansion chamber, said first reduced opening extending across the width of the muffler body, a second expansion chamber in the muffler body adjacent to the first reduced opening to receive exhaust gases from the first reduced opening, said second expansion chamber extending across the width of the muffler body, a second reduced opening in the muffler body communicating with the second expansion chamber to receive exhaust gases from the second expansion chamber, said second reduced opening extending across the width of the muffler body, said second reduced opening and the first reduced opening cooperating to direct the flow of exhaust gases thought the muffler body in a sinuous flow path, a third expansion chamber in the muffler body adjacent to the second reduced opening to receive exhaust gases from the second reduced opening, said third expansion chamber extending across the width of the muffler body and communicating with the outlet to allow the exhaust gases to leave the muffler body, whereby the volume of the sound of the exhaust gases passing through the muffler body is decreased by the conversion of part of the sound energy to heat energy and the frequency of the sound of the exhaust gases is modified in the muffler body.