公开(公告)号：US11642658B2

公开(公告)日：2023-05-09

申请号：US16523057

申请日：2019-07-26

Applicant: JOHNSON MATTHEY PUBLIC LIMITED COMPANY

Inventor： Kyoji Kitamoto ,  Shuhei Nagaoka ,  Daisuke Yokota

IPC: B01J21/04 ,  B01J21/06 ,  B01J21/08 ,  B01J21/10 ,  B01J21/12 ,  B01J21/14 ,  B01J23/10 ,  B01J23/40 ,  B01J23/42 ,  B01J23/44 ,  B01J23/46 ,  B01J35/02 ,  F01N3/10 ,  F01N3/28 ,  B82Y30/00 ,  B01J23/00 ,  B82Y40/00

CPC classification number: B01J23/44 ,  B01J23/464 ,  B01J35/023 ,  B01J35/026 ,  F01N3/101 ,  F01N3/2803 ,  B01J21/04 ,  B01J23/002 ,  B82Y30/00 ,  B82Y40/00 ,  F01N2370/02

Abstract: A three-way catalyst article, and its use in an exhaust system for internal combustion engines, is disclosed. The catalyst article for treating exhaust gas comprising: a substrate; and a first catalytic region on the substrate; wherein the first catalytic region comprises a first platinum group metal (PGM) component, wherein the first PGM component comprises PGM nanoparticles, wherein the PGM nanoparticles have an average particle size of about 1 to about 20 nm with a standard deviation (SD) no more than 1 nm.

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.

公开(公告)号：US20190120105A1

公开(公告)日：2019-04-25

申请号：US16166469

申请日：2018-10-22

Applicant: HONDA MOTOR CO., LTD.

Inventor： Yoshiaki Hatakeyama ,  Hiroki Yokoyama

IPC: F01N3/022 ,  B01D46/24 ,  B01J35/04

CPC classification number: F01N3/0222 ,  B01D46/2422 ,  B01D46/2429 ,  B01J35/04 ,  F01N3/021 ,  F01N3/035 ,  F01N3/101 ,  F01N3/2828 ,  F01N3/2853 ,  F01N3/2867 ,  F01N3/2875 ,  F01N3/2878 ,  F01N2330/06 ,  F01N2330/30

Abstract: An exhaust purifying device provided in an exhaust passage of an internal combustion engine comprises: a column-shaped honeycomb carrier; a cylindrical case member adapted to house the honeycomb carrier; a holding member provided between the honeycomb carrier and the case member to surround the outer circumference of the honeycomb carrier; buffer members provided on a peripheral edge of the edge surface of at least one side of an inflow side edge surface and an outflow side edge surface of the honeycomb carrier so as to regulate the movement of the honeycomb carrier in the central axis X direction; and setting members secured to the case member to regulate the movement of the buffer members by allowing their position regulation parts to contact the buffer members; wherein the buffer members are provided, on the outer circumferential sides, with recesses into which the position regulation parts of the setting members are fitted.

公开(公告)号：US20190093580A1

公开(公告)日：2019-03-28

申请号：US16132916

申请日：2018-09-17

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Yuki Nose ,  Yoshiyuki Shogenji ,  Eiji Ikuta ,  Misako Ban ,  Keiichi Myojo

IPC: F02D41/02 ,  F02D41/14

CPC classification number: F02D41/0295 ,  F01N3/101 ,  F01N11/007 ,  F02D41/0072 ,  F02D41/023 ,  F02D41/024 ,  F02D41/1441 ,  F02D41/1456 ,  F02D41/1475 ,  F02D41/30 ,  F02D43/00

Abstract: A controller is configured to execute a dither control process of operating fuel injection valves such that at least one of cylinders is a lean combustion cylinder, in which the air-fuel ratio is leaner than the stoichiometric air-fuel ratio, and at least another one of the cylinders is a rich combustion cylinder, in which the air-fuel ratio is richer than the stoichiometric air-fuel ratio, and a limiting process of limiting the dither control process such that the difference in the air-fuel ratio between the cylinders is smaller in a change period, in which a gear ratio of the multi-speed transmission is changed, than in periods except for the change period.

公开(公告)号：US20190055872A1

公开(公告)日：2019-02-21

申请号：US16077528

申请日：2017-07-26

Applicant: MITSUI MINING & SMELTING CO., LTD.

Inventor： Naoki MUNAKATA ,  Katsumasa HORII ,  Yunosuke NAKAHARA

IPC: F01N11/00 ,  G01N25/72 ,  G01K1/14 ,  G01K7/06

CPC classification number: F01N11/002 ,  B01D53/94 ,  B01D53/9445 ,  F01N3/00 ,  F01N3/101 ,  F01N3/103 ,  F01N3/20 ,  F01N2550/02 ,  F01N2560/06 ,  F01N2560/14 ,  F01N2900/08 ,  F01N2900/1404 ,  F02D45/00 ,  G01K1/14 ,  G01K7/02 ,  G01K7/06 ,  G01N25/72

Abstract: A system (9) of the invention is a system for detecting deterioration of a catalyst (8) provided in an exhaust passage (12) of an internal combustion engine (11), the system including: means (5) that detects a temperature of an exhaust on an upstream side of the catalyst (8); means (6) that detects a temperature of the exhaust on a downstream side of the catalyst (8); a recognition unit (10) that recognizes, both upstream and downstream of the catalyst (8), a change point at which the temperature changes from temperature fall or constant temperature to temperature rise during acceleration operation, or a change point at which the temperature changes from temperature rise or constant temperature to temperature fall during deceleration operation; and a determination unit (10) that determines that the catalyst (8) has deteriorated when a difference (ΔT or ΔT′) between the upstream and downstream change points becomes equal to or longer than a predetermined time.

公开(公告)号：US20180355824A1

公开(公告)日：2018-12-13

申请号：US15984196

申请日：2018-05-18

Applicant: Ford Global Technologies, LLC

Inventor： Moritz Klaus Springer ,  Helmut Hans Ruhland ,  Jan Mehring ,  Thomas Lorenz

IPC: F02M26/06 ,  F01N3/10 ,  F01N13/10 ,  F02B37/18 ,  F02M26/22 ,  F02B75/20

CPC classification number: F02M26/06 ,  F01N3/0835 ,  F01N3/0871 ,  F01N3/101 ,  F01N3/30 ,  F01N13/0093 ,  F01N13/10 ,  F01N13/107 ,  F01N2240/36 ,  F01N2340/06 ,  F01N2410/06 ,  F01N2430/10 ,  F01N2900/1602 ,  F02B37/18 ,  F02B75/20 ,  F02B2075/1812 ,  F02M26/22

Abstract: Methods and systems are provided for a close-coupled aftertreatment device. In one example, a system may include an engine comprising separate first and second overall exhaust lines, where a blow-off line branches off of the second overall exhaust line, and where the close-coupled aftertreatment device is arranged in the blow-off line and configured to receive exhaust gases during at least a cold-start of the engine.

公开(公告)号：US20180347425A1

公开(公告)日：2018-12-06

申请号：US15761607

申请日：2015-09-24

Applicant: HONDA MOTOR CO., LTD.

Inventor： Shinichiro OTSUKA ,  Kenji KATAYAMA ,  Noritaka MASUMITSU ,  Ryoko YAMADA

IPC: F01N3/10 ,  B01D53/94 ,  B01D46/24 ,  F01N3/022 ,  F02D41/30 ,  F02D41/02

CPC classification number: F01N3/101 ,  B01D46/2429 ,  B01D46/247 ,  B01D46/2474 ,  B01D53/945 ,  B01D53/9454 ,  B01D53/9477 ,  B01D2046/2433 ,  B01D2046/2437 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/2066 ,  B01D2255/2068 ,  B01D2255/908 ,  B01D2255/9202 ,  B01D2258/014 ,  B01D2279/30 ,  F01N3/022 ,  F01N3/0222 ,  F01N3/035 ,  F01N3/10 ,  F01N13/02 ,  F01N2250/02 ,  F01N2330/02 ,  F01N2560/025 ,  F01N2560/14 ,  F02D41/0235 ,  F02D41/30 ,  Y02T10/22

Abstract: An exhaust purification system includes an LAF sensor provided in an exhaust pipe and generates a signal corresponding to an air-fuel ratio of exhaust gas. An upstream catalytic converter is downstream of the LAF sensor and has a catalyst to purify the exhaust gas. An O2 sensor is downstream of the upstream catalytic converter, and generates a signal corresponding to the air-fuel ratio of the exhaust gas. A GPF is downstream of a the O2 sensor and purifies the exhaust gas. An ECU controls an air-fuel mixture in an engine using output signal KACT of the LAF sensor and an output signal VO2 of the O2 sensor such that the air-fuel ratio of exhaust gas flowing into the GPF converges to a target value near the stoichiometric ratio. The GPF has a filter substrate and a downstream TWC supported by a partition of the filter substrate.

公开(公告)号：US20180304238A1

公开(公告)日：2018-10-25

申请号：US15936980

申请日：2018-03-27

Applicant: Yoshinori SAITO ,  Hiromasa SUZUKI ,  Tatsuya OHASHI ,  Keiichi NARITA ,  Ryota NAKASHIMA ,  Mitsuyoshi OKADA ,  Ryosuke TAKASU ,  Shunsuke OISHI

Inventor： Yoshinori SAITO ,  Hiromasa SUZUKI ,  Tatsuya OHASHI ,  Keiichi NARITA ,  Ryota NAKASHIMA ,  Mitsuyoshi OKADA ,  Ryosuke TAKASU ,  Shunsuke OISHI

IPC: B01J23/46 ,  B01J23/44 ,  B01J35/00 ,  B01J37/02 ,  B01J37/08 ,  B01D53/94 ,  F01N3/10

CPC classification number: B01J23/464 ,  B01D53/945 ,  B01D53/9468 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/9025 ,  B01J23/44 ,  B01J35/0006 ,  B01J37/0236 ,  B01J37/0244 ,  B01J37/088 ,  F01N3/101

Abstract: An exhaust gas purification catalyst having a substrate and a catalyst coating layer formed on the surface of the substrate, wherein the catalyst coating layer has the upper and lower layer having a lower layer closer to the surface of the substrate and an upper layer relatively remote from the surface of the substrate, the upper layer of the catalyst coating layer having Rh, Pd, and a carrier, the lower layer of the catalyst coating layer having at least one noble metal selected from Pd and Pt and a carrier, 65% by mass or more of Pd in the upper layer exists in a layer up to 50% of the upper layer in a thickness direction from the surface of the upper layer being relatively remote from the surface of the substrate, and the ratio of Pd to Rh by mass (Pd/Rh) is 0.5 to 0.7 in the upper layer.

公开(公告)号：US20180291784A1

公开(公告)日：2018-10-11

申请号：US15922168

申请日：2018-03-15

Applicant: VOLKSWAGEN AKTIENGESELLSCHAFT

Inventor： Dennis Achenback ,  Falk-Christian Baron Von Ceumern-Lindenstjerna ,  Stefan Paukner ,  Michael Manz

IPC: F01N3/20 ,  F01N3/22 ,  F01N3/10 ,  F01N9/00

CPC classification number: F01N3/2013 ,  F01N3/101 ,  F01N3/225 ,  F01N3/30 ,  F01N3/32 ,  F01N9/00 ,  F01N13/0093 ,  F01N2240/16 ,  F01N2430/06 ,  F01N2900/1624 ,  Y02A50/2322 ,  Y02T10/22 ,  Y02T10/47

Abstract: A method for heating an electrically heatable catalytic converter in an exhaust duct of a motor vehicle having a combustion engine. To heat the catalytic converter prior to a start of the combustion engine, the catalytic converter should already be electrically heated prior to the start of the combustion engine, and the oxygen storage capacity of the electrically heatable catalytic converter should be filled. Thus, an efficient exhaust-gas aftertreatment is made possible already at the start of the combustion engine. A further heating of the catalytic converter by a combined electrical and chemical heating takes place following an electrical preheating phase after the start of the combustion engine by the exothermic reaction of unburned fuel components on a catalytically active surface of the electrically heatable catalytic converter. Also, a motor vehicle having a combustion engine and an exhaust system in which a method according to the present invention is implemented.

公开(公告)号：US10071342B2

公开(公告)日：2018-09-11

申请号：US14895304

申请日：2014-05-28

Applicant: UMICORE AG & CO. KG

Inventor： Jan Schoenhaber ,  Joel Despres ,  Joerg-Michael Richter ,  Martin Roesch

IPC: B01J21/04 ,  B01J23/10 ,  B01J23/44 ,  B01J23/46 ,  B01J23/56 ,  B01J23/58 ,  B01J23/63 ,  F01N3/10 ,  B01D53/94

CPC classification number: B01D53/9454 ,  B01D53/94 ,  B01D53/9445 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/2042 ,  B01D2255/2065 ,  B01D2255/20715 ,  B01D2255/2092 ,  B01D2255/902 ,  B01D2255/903 ,  B01D2255/9032 ,  B01D2255/908 ,  F01N3/101 ,  F01N2510/0682 ,  F01N2570/16 ,  Y02A50/2324 ,  Y02T10/22

Abstract: The present invention relates to a three-way catalytic converter for reducing harmful exhaust components of gasoline-powered internal combustion engines, and to a corresponding method for exhaust gas purification. The catalytic converter is characterized by a particularly inhomogeneous distribution of the oxygen-storing material present.