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US 7,622,419 B2Granted
Filter catalyst
AssigneesCataler Corporation, Toyota Jidosha Kabushiki Kaisha
InventorsMakoto Tsuji, Daisuke Oki, Seiji Okawara
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Abstract
To provide a filter catalyst in which the closure of ventilation holes by a catalytic layer is inhibited. A filter catalyst of the present invention is characterized in that it has pores of 1-20 μm in a porosity of 11% or more. The filter catalyst of the present invention has an effect of being capable of inhibiting the rise of pressure loss when sufficient particulates deposit.
Claims3
A filter catalyst comprising:
- a catalyst-support substrate composed of a heat-resistant porous structure having chained pores;
- and
- a catalytic layer for burning particulates and formed on a surface of said catalyst-support substrate,
- wherein said filter catalyst has pores of 1-20 μm in a porosity of 11% or more.
1 more element
Dependencies are inferred from the claim text.