Absorption silencer for IC engine - has series of intermediate ducts heated by exhaust gas

摘要

The two-part casing (16,17) contains at least four chambers (11-14) separated by plates (6-10). An exhaust inlet (18) passes through the end plate (6) and each of the chambers (11,13,14,12). The two outer chambers (11,12) are linked by a corrugated plate (26) fitted to the inside of half the casing and forming a series of parallel intermediated ducts (27). An exhaust gas outlet (21) passes from the end chamber (11) through to the plate at the other end (7). All chambers except the end ones (11,12) are packed with rock wool (24,25) and either the inlet (18) or outlet pipe (21) is perforated (22,23) where it passes throug each of the packed chambers (13,14). USE/ADVANTAGE - Absorbtion-type silencer for IC engine has casing which keeps the insulation dry; efficiency does not deteriorate, silencer lasts longer.