APPARATUS AND PROCESS FOR FACE PAINTING SUBSTRATES WITH PGM AND BASE METAL SOLUTIONS

摘要

The principles and embodiments of the present invention relate generally to systems and methods for applying a catalytic coating to the outwardly facing edges of the cell walls of a catalytic substrate to reduce the amount of soot that accumulates at the entrances of the substrate cells that can increase back pressure and reduce the flow of exhaust gases through the substrate.

主权项

1. A system for depositing a face coating on a monolithic catalytic substrate comprising:
an in-feed system; an out-feed system; at least one conveyor motor operatively associated with the in-feed system and/or out-feed system, which drives the in-feed system and out-feed system at a specified speed; a motor controller in electrical communication with the at least one conveyor motor that controls a specified feed speed produced by the at least one conveyor motor; a coating liquid applicator positioned between the in-feed system and out-feed system, wherein the coating liquid applicator comprises an inside core and an outside nap having a nap height; and a coating liquid trough positioned below the coating liquid applicator that is configured and dimensioned to receive the full length of the coating liquid applicator within the coating liquid trough and retains a coating liquid, and wherein the coating liquid trough is vertically positioned so that the nap of the coating liquid applicator is at least partially submerged within the coating liquid.