Silencer for motor vehicle exhaust has chamber defining venturi and outer casing with sound absorbing infill

摘要

The silencer for a motor vehicle exhaust has a chamber (3) of tapering cross section leading to a Venturi (2) and a conical diffuser (4). All these components are mounted in a tubular casing (1) defining an annular gap (5) around the components which is filled with a sound absorbing material.