Patent ID: 6050363
Filing Date: 2000-04-18
Classification: F01N

Abstract:
A cylindrically shaped muffler for a gas engine, comprising:(a) a cylindrical shell having a shell-bore, an inlet and an outlet;(b) a plurality of first hollow cones suspended within but is supported by said shell-bore, said first hollow cones having their largest diameters smaller than that of said shell-bore with their apexes pointing toward said inlet of said cylindrical shell;(c) a plurality of hollow truncated second cones having their greatest diameters equal to that of said shell-bore in which they are supported in reverse to the first hollow cones and alternate therewith, so as to have their smallest diameter portions pointing toward said outlet of said cylindrical shell; and(d) a stopper suspended inside said hollow truncated second cone near its smallest diameter portion in such a manner to create eddy currents in gas flow and absorb noise.