| 摘要 |
The invention comprises a high pressure turbo charger (1), a low pressure turbo charger (2), a pre catalysator (5) and a main catalysator (6), which is switched to the pre catalysator. The pre catalysator, viewed in the direction of the exhaust gas flow (PA), is located in front of the low pressure turbine (13) of the low pressure turbo charger. |
