초록 ▼

Systems and apparatus for muffling sounds produced by an internal combustion engine, and optionally catalytically degrading pollutants within waste exhaust gases. The systems and apparatus utilize a bed of particles within a muffling chamber. The gases are introduced using a diffusion tube with hole

Systems and apparatus for muffling sounds produced by an internal combustion engine, and optionally catalytically degrading pollutants within waste exhaust gases. The systems and apparatus utilize a bed of particles within a muffling chamber. The gases are introduced using a diffusion tube with holes therethrough. The muffling particles preferably include silica or alumina, which can also catalytically degrade pollutants. Typically, the muffling/reaction chamber is maintained at a temperature in a range from about 50.degree. C. to about 500.degree. C., which is much lower than temperatures within conventional muffling systems for diesel engines. The muffling systems operate as substantially lower back pressure compared to conventional muffling systems. The systems and apparatus can be adapted to be used in combination with diesel engines or other internal combustion engines and industrial burners.

대표청구항 ▼

1. A system for muffling the sounds of an internal combustion engine comprising:a muffling chamber; a volume of muffling particles disposed within the muffling chamber; and an exhaust conduit disposed at least partially within the muffling chamber, adjacent a portion of the muffling particles, and c

1. A system for muffling the sounds of an internal combustion engine comprising:a muffling chamber; a volume of muffling particles disposed within the muffling chamber; and an exhaust conduit disposed at least partially within the muffling chamber, adjacent a portion of the muffling particles, and communicating between an internal combustion engine and the muffling chamber so that waste exhaust gases produced by the internal combustion engine are passed into the muffling chamber and through at least a portion of the volume of muffling particles in order to muffle engine sounds propagated by the waste exhaust gases, the exhaust conduit including a central pipe having an end disposed within the muffling chamber and a plurality of diffusion tubes connected to and in gaseous communication with the end of the central pipe, each diffusion tube including at least one diffusion hole through which the waste exhaust gases will pass.