Honda motor co., ltd. (20250108364). CATALYST STRUCTURE
CATALYST STRUCTURE
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CATALYST STRUCTURE
This abstract first appeared for US patent application 20250108364 titled 'CATALYST STRUCTURE
Original Abstract Submitted
a catalyst device () includes a honeycomb core () in which a metal foil () on which a catalyst is supported is wound, in which a plurality of through holes (h) are formed in part of the metal foil (), and in a flow direction of combustion gas (g) passing through the honeycomb core (), a first region (a) in which the through holes (h) are not provided, a second region (b) in which the through holes (h) are provided, and a third region (c) in which the through holes (h) are not provided are lined up in this order from an upstream side thereof. a width (ta) of the first region (a) is set to be smaller than a width (tc) of the third region (c), when defining the flow direction of the combustion gas (g) as a width direction.