The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 05, 1991
Filed:
Sep. 29, 1989
Rolf Leonhard, Schwieberdingen, DE;
Ulrich Projahn, Ditzingen, DE;
Robert Bosch GmbH, Stuttgart, DE;
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.