Multi-chamber muffler

Claim 1

In a muffler: a plurality of exhaust gas transfer chambers including, an initial cyclonic vortex chamber having a forward wall, muffler casing, and baffle wall means mounted within the muffler casing, with a pronounced slant toward said forward wall; an exhaust gas expansion chamber within the muffler case, flow-wise, behind said initial cyclonic vortex chamber; exhaust gas input means positioned to feed exhaust gases to said initial cyclonic vortex chamber; exhaust gas flow outlet means for passage of exhaust gas products from said expansion chamber, ultimately to the atmosphere; wherein said baffle wall means is a common wall between said initial cyclonic vortex chamber and said exhaust gas expansion chamber with the slant toward said forward wall forming an acute angle with muffler casing on the initial cyclonic vortex chamber side of the baffle wall means; with said baffle wall means having a hurdle end edge defining, with said muffler case, opening means for passage of exhaust gas in flow from said initial cyclonic vortex chamber to said exhaust gas expansion chamber; said exhaust gas input means comprising a pipe extended through the forward wall of the muffler and into the confines of said vortex chamber to an outlet end termination near the center of said vortex chamber, said outlet end having an opening with dimension substantially smaller than one-half the vertical dimension of said vortex chamber and radially displaced from the chamber longitudinal axis toward the hurdle end edge of said baffle wall, said outlet end being positioned and directed to aid cyclonic vortex gas flow within said initial cyclonic vortex chamber; and, wherein the outlet end of said exhaust gas input means pipe is located at a relatively lower pressure area within the confines of and near the center of the gas flow cyclonic vortex established within said vortex chamber when exhaust gas is being fed from said exhaust gas input means pipe and through the muffler.