公开(公告)号：US20220226760A1

公开(公告)日：2022-07-21

申请号：US17647732

申请日：2022-01-11

Applicant: HONDA MOTOR CO., LTD.

Inventor： Takeshi MORI ,  Tomoko TSUYAMA ,  Takayuki WATANABE

IPC: B01D46/00 ,  B01J29/06 ,  B01J35/04 ,  B01D46/24 ,  F01N3/022 ,  F01N3/035 ,  F01N3/28 ,  B01D53/94

Abstract: To provide an exhaust gas purification filter having a high capability of collecting particulate matter. The exhaust gas purification filter includes a filter base material having a wall flow structure and an exhaust gas purification catalyst. A wash coating amount of the exhaust gas purification catalyst ranges from 60 to 110 g/L or less. When the exhaust gas purification filter is divided into an upstream part, a middle part, and a downstream part, and average values of catalyst area ratios of the exhaust gas purification catalyst supported by surfaces of the partition walls are acquired at predetermined locations in cells on an inflow side and cells on an outflow side, a minimum value, among the average values, is 28% or greater. A maximum value, among sizes of pores in the partition walls after the exhaust gas purification catalyst is supported, is 14.6 μm or less.

公开(公告)号：US20210164377A1

公开(公告)日：2021-06-03

申请号：US17046584

申请日：2019-04-17

Applicant: Mitsui Mining & Smelting Co., Ltd. ,  HONDA MOTOR CO., LTD.

Inventor： Hiroki KURIHARA ,  Yusuke NAGAI ,  Shingo AKITA ,  Yoshinori ENDO ,  Takeshi MORI ,  Takayuki WATANABE ,  Tomoko TSUYAMA

IPC: F01N3/28 ,  B01J23/63 ,  B01J35/04

Abstract: There is provided an exhaust gas purifying catalyst including a substrate and catalyst portions. The substrate includes an inflow-side cells, outflow-side cells, and porous partition walls, each partition wall separating the inflow-side cell from the outflow-side cell. The catalyst portion includes: (group A) first catalyst portions, each first catalyst portion being provided on a surface of the partition wall that faces the inflow-side cell on an upstream side in an exhaust gas flow direction; and (group B) second catalyst portions being provided on a surface of the partition wall that faces the outflow-side cell on a downstream side in the exhaust gas flow direction. Each catalyst portion of one of group A and group B includes at least one oxidizing catalyst layer and at least one reducing catalyst layer, and each catalyst portion of the other of group A and group B includes at least one oxidizing catalyst layer and/or at least one reducing catalyst layer.

公开(公告)号：US20210164378A1

公开(公告)日：2021-06-03

申请号：US17046517

申请日：2019-04-17

Applicant: Mitsui Mining & Smelting Co., Ltd. ,  HONDA MOTOR CO., LTD.

Inventor： Hiroki KURIHARA ,  Yusuke NAGAI ,  Shingo AKITA ,  Yoshinori ENDO ,  Takeshi MORI ,  Takayuki WATANABE ,  Tomoko TSUYAMA

IPC: F01N3/28 ,  B01J23/63 ,  B01J35/04 ,  B01J35/10

Abstract: In an exhaust gas purifying catalyst according to the present invention, a substrate includes inflow-side cells, outflow-side cells, and porous partition walls, each partition wall separating the inflow-side cell from the outflow-side cell. Catalyst portions include: first catalyst portions, each first catalyst portion being provided on a surface of the partition wall that faces the inflow-side cell on an upstream side in an exhaust gas flow direction, and second catalyst portions, each second catalyst portion being provided on a surface of the partition wall that faces the outflow-side cell on a downstream side, and the exhaust gas purifying catalyst satisfies the following expressions: IB1/IA×100≥60%, IB2/IA×100≥60%, IC1/IA×100≥3%, and IC2/IA×100≥3%, where IA, IB1, IB2, IC1, and IC2 represent pore volumes, definitions of which can be found in the specification.

公开(公告)号：US20200025576A1

公开(公告)日：2020-01-23

申请号：US16586571

申请日：2019-09-27

Applicant: DENSO CORPORATION ,  Honda Motor Co., Ltd.

Inventor： Takayuki WATANABE ,  Hiroshi SEKINE ,  Hirotaka TAKIGUCHI ,  Takuji HARAYAMA ,  Yutaka MOCHIZUKI

IPC: G01C21/30

Abstract: A road information learning device acquires a map extraction curve and a measurement curve for a traveling curve along which a vehicle travels, determines whether the map extraction curve and the measurement curve correspond to an identical traveling curve, and registers the measurement curve as a definitive registration curve when the map extraction curve and the measurement curve correspond to the identical traveling curve, and a predetermined definitive registration condition is satisfied.

公开(公告)号：US20190203621A1

公开(公告)日：2019-07-04

申请号：US16172893

申请日：2018-10-29

Applicant: Honda Motor Co.,Ltd.

Inventor： Chiaki SEKI ,  Takeshi MORI ,  Takayuki WATANABE

IPC: F01N3/10 ,  F01N3/28 ,  B01D53/94 ,  B01D46/24 ,  B01D53/88

CPC classification number: F01N3/101 ,  B01D46/2429 ,  B01D46/247 ,  B01D46/2474 ,  B01D53/885 ,  B01D53/9445 ,  B01D2046/2437 ,  B01D2258/012 ,  F01N3/0222 ,  F01N3/035 ,  F01N3/2828 ,  F01N2250/02

Abstract: Provided is an exhaust purifying filter having high catalyst purification performance and particulate matter capturing performance while reducing pressure loss. A GPF includes a filter substrate in which a plurality of cells extending from an inflow-side end surface to an outflow-side end surface are partitioned and formed by a porous partition wall and an inflow-side cell in which an opening in the outflow-side end surface is sealed and an outflow-side cell in which an opening in the inflow-side end surface is sealed are alternately disposed; and a TWC which is carried on the partition wall, wherein a difference between a total volume of pores having pore diameters within a range of 0.1 μm to 10.7 μm in pore distribution of the GPF and a total volume of pores having pore diameters within a range of 0.1 μm to 10.7 μm in pore distribution of the filter substrate is 0.015 ml/g˜0.06 ml/g.