Patent ID: 7563309
Filing Date: 2009-07-21
Classification: B01D,F01N,Y10S

Abstract:
1. A method for a regenerating engine exhaust filter device having a housing, a porous filter media disposed within said housing contaminated with soot and materials entrained in combustion products of an engine, said method comprising: providing an apparatus having a burn-off furnace including an enclosure defining a heating chamber, wherein said furnace includes a support in said chamber for supporting plural filter devices, and said apparatus includes a manifold for supplying pressure air to said filter devices via conduits operable to be connected to said manifold and said filter devices, respectively; a conduit extending from the exterior of said air closure to said chamber for connection to said filter device; and a source of oxygen containing gas connected to said conduit for conduction to the interior of said filter device during heating thereof to incinerate material accumulated on said filter media; placing a filter device in a burn-off furnace comprising an enclosure defining a chamber in which heated gasses are circulated; heating said filter device by circulating heated gasses within said chamber; and circulating combustion air through the interior of said filter device to incinerate material trapped by filter media of said filter device.