Device for removing soot from diesel exhaust

Details Device for removing soot from diesel exhaust Device for removing soot from diesel exhaust

1989-09-29

1991-02-05

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

By means producing a chemical reaction of a component of the...

55466, 55DIG30, 60311, F01N 302

Patent

active

049894080

ABSTRACT:
A device for removing solid particles, in particular soot particles, from the exhaust gas of internal combustion engines includes a centrifugal separator or cyclone 11 to separate the untreated gas flow 10 into coaxially removed pure gas flow 23 and a particle-enriched carrier gas flow 24 and includes a combustion device 12 for burning the solid particles carried in the carrier gas flow. In order to reduce the manufacturing costs and to obtain a compact, small-volume assembly the combustion housing 16 of the combustion device 12 is integrated in the collecting piece 133 of the cyclone housing 13 such that an annular channel 18 is left between the combustion hosuing 16 and the collecting piece 133 through which a carrier gas flow is passed so as to enter the combustion housing 16 at the end of the latter facing away from the interior of the cyclone housing 13, to pass through a filter 27 heated up above combustion temperature of the solid particles and to finally enter into the vortex core of the cyclone and be removed together with pure gas flow 23. The free end of the collecting piece is closed so as to prevent carrier gas from escaping.

REFERENCES:
patent: 4406119 (1983-09-01), Kamiya
patent: 4858431 (1989-08-01), Leonhard

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