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    EXHAUST-GAS PURIFYING CATALYST
    1.
    发明公开
    EXHAUST-GAS PURIFYING CATALYST 审中-公开

    公开(公告)号：EP3689457A1

    公开(公告)日：2020-08-05

    申请号：EP18860962.2

    申请日：2018-09-11

    申请人： Cataler Corporation ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

    发明人： NOMURA, Yasutaka ,  INODA, Satoru ,  MIYOSHI, Naoto ,  SATO, Akemi

    IPC分类号： B01J35/04 ,  B01D53/94 ,  B01J37/02 ,  F01N3/28

    摘要： The present invention provides to an exhaust gas purification that has: a base 11 of wall flow structure having inlet side cells 12 in which an end 13 on the exhaust gas inflow side is open and outlet side cells 14 in which an end 15 on the exhaust gas outflow side is open, and a porous partition wall that partitions the inlet side cell and the outlet side cell; and a first catalyst layer 20 and a second catalyst layer 30 disposed in the interior of the porous partition wall 16 so as to be in contact with the inlet side cells 12 and the outlet side cells 14, wherein either one of the first catalyst layer 20 and the second catalyst layer 30 contains an oxidation catalyst but does not contain a reduction catalyst, and the other one contains the reduction catalyst but does not contain the oxidation catalyst; and a ratio of the lengths of the first catalyst layer 20 and the second catalyst layer 30 differs between a surface of the porous partition wall 16 on the side in contact with the inlet side cells 12 and a surface on the side in contact with the outlet side cells 14.

    STRUCTURE
    4.
    发明公开
    STRUCTURE 审中-公开

    公开(公告)号：EP3730751A1

    公开(公告)日：2020-10-28

    申请号：EP20165615.4

    申请日：2020-03-25

    申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA ,  CATALER CORPORATION

    发明人： SUGIURA, Koji ,  NISHIOKA, Hiromasa ,  MIYOSHI, Naoto ,  SATO, Akemi ,  IKEBE, Masatoshi ,  NAKASHIMA, Ryota ,  NOMURA, Yasutaka

    IPC分类号： F01N3/035 ,  B01D53/94 ,  F01N3/10 ,  F01N3/28

    摘要： A structure 1 used as an exhaust gas purification filter in which a pressure loss is reduced is provided. The structure 1 includes: a substrate 10 including a first end I, a second end J, and a porous partition wall 12 defining a first cell 14 and a second cell 60 extending between the first end I and the second end J; a first catalyst 30; and a second catalyst 50. In a first area X, the first catalyst 30 is disposed on a first surface 12a of the partition wall 12, and the partition wall 12 with the first catalyst 30 disposed on the partition wall 12 is impermeable to gas. In a second area Y, the first catalyst 30 is not provided, the second catalyst 50 is disposed in a region including at least a part inside the partition wall 12, the part facing the first cell, and the partition wall 12 with the second catalyst 50 disposed in the partition wall 12 is permeable to gas. In a third area Z, any of the first catalyst 30 or the second catalyst 50 is not provided, and the partition wall 12 is permeable to gas.

    EXHAUST GAS PURIFICATION CATALYST
    5.
    发明公开
    EXHAUST GAS PURIFICATION CATALYST 审中-公开

    公开(公告)号：EP3505229A1

    公开(公告)日：2019-07-03

    申请号：EP18213094.8

    申请日：2018-12-17

    申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA ,  CATALER CORPORATION

    发明人： TANAKA, Atsushi ,  YOSHIDA, Takeru ,  MIYOSHI, Naoto ,  SATO, Akemi ,  NOMURA, Yasutaka ,  INODA, Satoru

    IPC分类号： B01D53/94 ,  B01D46/24

    摘要： The exemplary embodiments relate to an exhaust gas purification catalyst, in which exhaust gas purification performance is secured and an increase in pressure loss is suppressed, which is an exhaust gas purification catalyst, in which a porous filter wall of a substrate having a wall-flow structure is coated with a catalyst material containing an OSC material having oxygen storage capacity and a catalyst metal, wherein the density of percolation paths having percolation path diameters of 4 µm or more per unit area inside of the filter wall coated with the catalyst material is 100 paths/mm 2 to 1000 paths/mm 2 .