公开(公告)号：US20210324777A1

公开(公告)日：2021-10-21

申请号：US17231474

申请日：2021-04-15

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA ,  CATALER CORPORATION

发明人： Koji SUGIURA ,  Hiromasa NISHIOKA ,  Naoto MIYOSHI ,  Akemi SATOU ,  Keisuke MURAWAKI ,  Masatoshi IKEBE ,  Takaya OTA ,  Ryota NAKASHIMA ,  Hirotaka ORI

IPC分类号： F01N3/28 ,  B01D53/94 ,  B01J35/04 ,  B01J35/10

摘要： An exhaust gas control apparatus includes a honeycomb substrate and an inlet cell-side catalyst layer. The honeycomb substrate includes a porous partition wall that defines a plurality of cells extending from an inlet-side end face to an outlet-side end face. The cells include an inlet cell and an outlet cell that are adjacent to each other with the partition wall therebetween. The inlet cell is open at its inlet-side end and is sealed at its outlet-side end. The outlet cell is sealed at its inlet-side end and is open at its outlet-side end. The inlet cell-side catalyst layer is provided on a surface on the inlet cell side of the partition wall and extends from an inlet-side end of the partition wall. Porosity of the inlet cell-side catalyst layer is in a specific range.

公开(公告)号：US20240342654A1

公开(公告)日：2024-10-17

申请号：US18701056

申请日：2022-10-18

申请人： CATALER CORPORATION ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Kohei TAKASAKI ,  Keisuke MURAWAKI ,  Masatoshi IKEBE ,  Takeshi MORISHIMA ,  Takaya OTA ,  Koji SUGIURA ,  Takeshi HIRABAYASHI ,  Akemi SATOU

IPC分类号： B01D53/94 ,  B01D46/24 ,  B01J21/04 ,  B01J23/10 ,  B01J35/56 ,  B01J35/57 ,  B01J37/02

CPC分类号： B01D53/94 ,  B01D46/2418 ,  B01J21/04 ,  B01J23/10 ,  B01J35/56 ,  B01J35/57 ,  B01J37/0215 ,  B01D2255/2092 ,  B01D2255/407 ,  B01D2255/908 ,  B01D2255/9155 ,  B01D2258/012 ,  B01D2258/014

摘要： A wall-flow type particulate filter includes: a wall-flow type base material; and a coat layer formed on the base material. The base material includes: an inlet cell open only at an exhaust gas inlet end; an outlet cell open only at an exhaust gas outlet end; and a partition partitioning the inlet and outlet cells and having multiple pores through which the inlet and outlet cells communicate with each other. The coat layer is provided for the wall surfaces of the pores and contains a first inorganic oxide and a second inorganic oxide. The mean particle diameter Da of the first inorganic oxide is larger than the mean particle diameter Db of the second inorganic oxide. The weight ratio of the second inorganic oxide is designed to be from 10% to 50% inclusive when the total weight ratio of the first inorganic oxide and the second inorganic oxide is 100%.