| 摘要 |
The catalytic converter comprises a housing 20 for a catalyst section comprising a matrix 22 formed with passageways 23 coated with a catalyst material. An entry section 28 and an exit section 32 for exhaust gas are defined within the housing. The entry section has mounted therein a flap 40 which can be moved between a position in which it constrains exhaust gas to pass through only part of the matrix 22 to reduce light-up time, and a position in which it permits gas to flow through substantially the entire matrix. <IMAGE> |
