Regeneration method and regeneration device for diesel particulate exhaust filter

摘要

Regeneration method and regeneration device for diesel particulate filter. A regeneration device for a diesel particulate exhaust soot filter mounted in an exhaust pipe of a diesel engine in which the variable throttling device (4) is arranged in the upstream of the exhaust pipe of the diesel filter (1) as shown in the flow direction, A bypass passage 20 for branching from the upstream of the exhaust pipe 3 of the throttle device 4 and bypassing the diesel filter 1 in a state where the check valve 21 is disposed in the bypass passage, And temperature sensors 8 and 9 for measuring the actual exhaust temperatures Tl and Th in the upstream and downstream of the exhaust pipe 3 of the diesel particulate filter 1 and the measured actual exhaust temperatures Tl and Th, Tlmax and Thmax are applied as input values to provide an output control signal for the throttling device 4 and the check valve 21 to close the throttling device 4 to open the check valve, In order to prevent the reproduction of A control unit 10, and the like.