B - Operations – Transporting – 03 – C
Patent
B - Operations, Transporting
03
C
172/3, 183/38
B03C 3/04 (2006.01) F01N 3/01 (2006.01) F01N 3/021 (2006.01) F01N 3/033 (2006.01) F01N 3/037 (2006.01) F02M 25/07 (2006.01) F01N 13/02 (2010.01) F02B 3/06 (2006.01)
Patent
CA 1149757
ABSTRACT OF DISCLOSURE: The method and apparatus for controlling particulate emissions from a combustion apparatus, as a diesel engine. Diesel engine exhaust particles are electrically charged during the formation of the particles in the engine combus- tion chamber. A particle collector is used to collect the electrically charged particles on collecting structures con- nected to a high voltage power supply and ground. The collect- ing structures of the particle collector can be a plurality of parallel metal plates, spaced cylindrical rods, or con- centrically located cylindrical members. A fibrous matrix can be located adjacent the particle collecting structure to collect the charged particles as they move through the matrix. In one embodiment, the collected particles separate from the collecting structures and return to the engine in- take. In another embodiment, a removable collecting cartridge has electrically conductive plates for collecting the charged particles. The entire cartridge is removed for cleaning or replacement. The hot exhaust gas from the engine can be used to oxidize the collected particles. The collected par- ticles that are not oxidized can be separated from the collect- ing structures and re-entrained into the gas. The re-entrained particles are larger than the particles formed in the combus tion apparatus. The large particles can be removed by a down- stream particle collection device or mixed with fuel for the engine.
348675
Dolan Daniel F.
Kittelson David B.
Liu Benjamin Y.h.
Pui David Y.h.
Mantha & Seaby
The Regents Of The University Of Minnesota
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