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US 12,121,858 B2Granted
Manufacturing method for exhaust gas purification device
AssigneeCataler Corporation
InventorsYuki Kido, Suguru Matsui, Etsuko Ohara, Kazuma Nakada
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Abstract
A production method of an exhaust gas purification device includes the steps of supplying a solution containing a catalyst metal from a shower nozzle to an upper part of a honeycomb substrate, coating the honeycomb substrate with the solution, and firing the honeycomb substrate coated with the solution, wherein the shower nozzle has a plurality of discharge openings for discharging the solution and a guard which surrounds the plurality of discharge openings.
Claims7
A production method of an exhaust gas purification device, comprising the steps of:
- supplying a solution containing a catalyst metal from a shower nozzle to an upper part of a honeycomb substrate;
- coating the honeycomb substrate with the solution;
- and
- firing the honeycomb substrate coated with the solution,
- wherein the shower nozzle has a plurality of discharge openings configured to discharge the solution and a guard configured to surround and moisten the plurality of discharge openings during the supplying of the solution so as to prevent clogging of the plurality of discharge openings.
2 more elements
Dependencies are inferred from the claim text.