| 摘要 |
An exhaust silencer 200 to reduce noise emitted from an exhaust system of a motor vehicle. The silencer comprises a housing defining an exhaust inlet 200b and an exhaust outlet 200c, a noise reducing structure 202, 204 provided within the housing, and a heat sink 210. A first portion 212a of the heat sink is arranged in a flow of exhaust gas within the housing, and a second portion 212b of the heat sink extends beyond an outer wall the housing. The heat sink transfers heat from the exhaust gas to outside the silencer housing. The first portion of the heat sink may comprise fins which define channels 218, 220 between the housing inlet and outlet. The second portion of the heat sink may comprise fins which define channels through which air may flow. A thermal mass may be provided between the first and second portions of the heat sink, and the heat sink may be coupled to the silencer housing at the thermal mass. |
