B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
183/72
B01D 46/44 (2006.01)
Patent
CA 1260407
- 16 - ABSTRACT A system is disclosed for extracting parti- culates from the exhaust gas flow flow an internal com- bustion engine for an automobile by the use of a filter trap stationed adjacent a heat controlled zone of the automobile, and which system periodically cleanses the filter trap of the particulates. The system has an apparatus which channels the flow of the exhaust gas between a condition where the exhaust gas is carried through at least a portion of the filter trap for an extraction mode and a condition where the exhaust gas is diverted away from said portion of the filter trap during a cleansing mode of said portion. The apparatus com- prises: (a) walls defining a primary flow channel for normally guiding said exhaust gases through at least a portion of said filter trap, the walls comprise a roof juxtaposed said zone: (b) means defining a diversion flow channel for diverting the exhaust gases away from said portion during the cleansing mode, the diversion flow means being superimposed on the roof of said walls to normally insulatingly separate the primary flow channel from said zone; and (c) flow diverter means for directing the flow of exhaust gases through said primary flow channel and through the diversion flow channel. The walls defining the primary flow channel Comprises a tube with an expanding conical inlet section, the tube having a cross-section with a height no greater than substantially one-half of its horizontal dimension, the top of the tube forming said roof. The roof pre- ferably extends horizontally and the diversion flow channel is defined by a wall extending across the roof to form the diversion flow channel therebetween.
467642
Rao Vemulapalli D.n.
Wade Wallace R.
Ford Motor Company Of Canada Limited
Sim & Mcburney
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