| 摘要 |
PURPOSE: A back-pressure sensitive exhaust line for a diesel particulate filter mounted vehicle is provided to prevent the reduction of output and fuel efficiency caused by the internal pressure of exhaust gas by efficiently guiding exhaust gas through a discharge pipe branched to two sides. CONSTITUTION: A back-pressure sensitive exhaust line for a diesel particulate filter mounted vehicle comprises an intake pipe(11), an exhaust pipe(10), a filter(21), an electric heater(22), first and second back pressure sensors(40,40'), first and second flow control valves(50,50'), and a controller(60). The exhaust pipe comprises first and second discharge pipes with one end communicated with the intake pipe and the other end is opened to discharge exhaust gas. The first and second back pressure sensors measures the internal pressure of the first and second discharge pipes. The first and second flow control valves control the flow rate of exhaust gas in the first and second discharge pipes. The controller individually controls the operations of the electric heater and the first and second flow control valves.
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