Process and apparatus for the regeneration of a soot-particle fi

Details Process and apparatus for the regeneration of a soot-particle fi Process and apparatus for the regeneration of a soot-particle fi

1990-04-12

1991-08-27

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

Methods

60285, F01N 302

Patent

active

050422480

ABSTRACT:
An apparatus for the regeneration of a soot-particle filter is located in the exhaust-gas line of an air-compression, fuel-injected internal-combustion engine. The apparatus regenerates the filter using a process which burns off the soot particles in the filter. A device in the intake line is actuable as a function of the engine load and engine speed and controls the cross-section of the intake line. To prevent damage to the soot-particle filter body during a transition of the internal-combustion engine into the deceleration mode, immediately after the transition into the deceleration mode of the internal-combustion engine, the process and apparatus move the device for controlling the intake-line cross-section first out of its open position into a position to reduce the line cross-section to a minimum and thereafter continuously into its open position.

REFERENCES:
patent: 4211075 (1980-07-01), Ludecke
patent: 4467601 (1984-08-01), Watanabe
patent: 4747264 (1988-05-01), Santiago

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