| 摘要 |
<p>An environmental protection exhaust-purifying silencer of vehicle comprises an exhaust pipe and a silencing barrel which are communicated each other. A first catalytic converter filled with catalyst is provided in said exhaust pipe. The silencer further includes a first air-feeding device for feeding secondary air into the exhaust pipe. Said first air-feeding device is connected to said exhaust pipe at the position before or after said first catalytic converter.</p> |
