JP7464563B2 - 触媒装置 - Google Patents
触媒装置 Download PDFInfo
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- JP7464563B2 JP7464563B2 JP2021067691A JP2021067691A JP7464563B2 JP 7464563 B2 JP7464563 B2 JP 7464563B2 JP 2021067691 A JP2021067691 A JP 2021067691A JP 2021067691 A JP2021067691 A JP 2021067691A JP 7464563 B2 JP7464563 B2 JP 7464563B2
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- catalyst carrier
- catalyst
- central axis
- slits
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- 230000003197 catalytic effect Effects 0.000 title claims description 27
- 239000003054 catalyst Substances 0.000 claims description 129
- 238000003780 insertion Methods 0.000 claims description 7
- 230000037431 insertion Effects 0.000 claims description 7
- 239000004020 conductor Substances 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 4
- 230000035882 stress Effects 0.000 description 14
- 230000008646 thermal stress Effects 0.000 description 14
- 229910052751 metal Inorganic materials 0.000 description 9
- 239000002184 metal Substances 0.000 description 9
- 238000002485 combustion reaction Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 230000008602 contraction Effects 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 229910017060 Fe Cr Inorganic materials 0.000 description 1
- 229910002544 Fe-Cr Inorganic materials 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- UPHIPHFJVNKLMR-UHFFFAOYSA-N chromium iron Chemical compound [Cr].[Fe] UPHIPHFJVNKLMR-UHFFFAOYSA-N 0.000 description 1
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 229910001120 nichrome Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000000615 nonconductor Substances 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 239000010948 rhodium Substances 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
- F01N3/2803—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
- B01J23/42—Platinum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
- B01J23/44—Palladium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
- B01J23/46—Ruthenium, rhodium, osmium or iridium
- B01J23/464—Rhodium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/20—Carbon compounds
- B01J27/22—Carbides
- B01J27/224—Silicon carbide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/19—Catalysts containing parts with different compositions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/50—Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
- B01J35/56—Foraminous structures having flow-through passages or channels, e.g. grids or three-dimensional monoliths
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
- F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
- F01N3/2006—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating
- F01N3/2013—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating using electric or magnetic heating means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
- F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
- F01N3/2006—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating
- F01N3/2013—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating using electric or magnetic heating means
- F01N3/2026—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating using electric or magnetic heating means directly electrifying the catalyst substrate, i.e. heating the electrically conductive catalyst substrate by joule effect
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
- F01N3/2839—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Toxicology (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Health & Medical Sciences (AREA)
- Exhaust Gas After Treatment (AREA)
- Catalysts (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Description
同構成によれば、スリットにて分けられる触媒担体の各分割体において、中心軸が延びる方向における分割体内の温度差は、スリットが複数設けられていない場合と比べて小さくなる。そのため、触媒担体の熱応力をさらに小さくすることができる。
なお、触媒担体の径方向におけるスリットの長さは、触媒担体の径方向の長さよりも短くしてもよい。
上記触媒装置において、前記触媒担体は導電体であって同触媒担体の側面には当該触媒担体を加熱するための一対の電極部が設けられてもよい。
図1及び図2を参照して、触媒装置10の構成を説明する。
触媒装置10は、円筒状の触媒担体11を備えている。なお、以下の説明では、触媒担体11を円筒としたときに同円筒の中心軸Oが延びる方向を触媒担体11の軸方向Aと記載する。
第1下地層13は、触媒担体11の側面に接するように形成された、導電性を有したセラミクスからなる層である。
なお、電気加熱や排気からの受熱により触媒担体11が高温となると、触媒担体11には熱応力が発生する。そして、そうした熱応力が過大となると、触媒担体11にクラックが発生するおそれがある。そこで本実施形態の触媒装置10では、そうした熱応力を緩和するためのスリット50を触媒担体11に設けている。
図2及び図3に示すように、スリット50は、軸方向Aにおける触媒担体11の中央付近に1つ設けられており、中心軸Oに対して垂直な方向に延びるように形成されている。
本実施形態の作用及び効果について説明する。
(1)スリット50が、触媒担体11の中心軸Oを含む任意の平面Pvに対して対称となるように設けられている。そのため、スリット50が形成された部位において、当該スリット50による熱応力の緩和が触媒担体11の径方向において偏ることが抑えられる。従って、そうした熱応力の偏りによる触媒担体11の損傷を抑えることができる。
・図6に示すように、第1分割体11aの側面と第2分割体11bの側面とを電極部12を介して接続する場合には、その電極部12によって第1分割体11aと第2分割体11bとが接続される。従って、この場合には、上記接続部11fを省略してもよい。
この場合には、スリット50にて分けられる触媒担体11の各分割体11a、11b、11cの軸方向Aにおける長さLは、スリット50が複数設けられていない場合と比べて短くなる。従って、軸方向Aにおける各分割体内の温度勾配による温度差は、スリット50が複数設けられていない場合と比べて小さくなる。そのため、触媒担体11の熱応力をさらに小さくすることができる。
・触媒担体11の中心軸Oに対して垂直な方向に延びており、かつ中心軸Oを含む任意の平面Pvに対して対称となるように設けられているとの条件を満たすスリットであれば、スリット50の形状は適宜に変更してもよい。
11…触媒担体
11f…接続部
12…電極部
13…第1下地層
14…第2下地層
15…金属電極板
16…固定層
50…スリット
Claims (5)
- 触媒担体の中心軸に対して垂直な方向にスリットが設けられた触媒装置であって、
前記触媒担体は円柱状であり、
前記スリットは、環形状であり、
前記触媒担体の径方向における前記スリットの長さは、前記触媒担体の半径よりも短く、且つ前記触媒担体の周方向の全体に亘って一定である
触媒装置。 - 前記スリットは、前記中心軸が延びる方向に並んで複数設けられている
請求項1に記載の触媒装置。 - 前記中心軸に直交するとともに前記中心軸が延びる方向において前記触媒担体を二等分する平面を当該触媒担体の中心面としたときに、前記スリットは、前記中心面に対して対称となる位置に設けられている
請求項2に記載の触媒装置。 - 前記中心軸が延びる方向において前記スリットの両側にそれぞれ位置する前記触媒担体を分割体とし、隣り合う分割体を繋ぐ部分を接続部とし、前記触媒装置をケースに挿入する際に当該触媒装置に作用する荷重であって同触媒装置の中心軸が延びる方向に作用する荷重を挿入荷重としたときに、前記触媒担体の径方向における前記接続部の断面積は、前記触媒担体の単位面積あたりの耐荷重に前記断面積を乗じた値が、前記挿入荷重よりも大きくなるように設定されている
請求項1~3のいずれか1項に記載の触媒装置。 - 前記触媒担体は導電体であって同触媒担体の側面には当該触媒担体を加熱するための一対の電極部が設けられている
請求項1~4のいずれか1項に記載に触媒装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2021067691A JP7464563B2 (ja) | 2021-04-13 | 2021-04-13 | 触媒装置 |
CN202210360720.3A CN115199385A (zh) | 2021-04-13 | 2022-04-07 | 催化剂装置 |
US17/715,958 US11964254B2 (en) | 2021-04-13 | 2022-04-08 | Catalyst device |
DE102022108564.3A DE102022108564A1 (de) | 2021-04-13 | 2022-04-08 | Katalysatorvorrichtung |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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JP2021067691A JP7464563B2 (ja) | 2021-04-13 | 2021-04-13 | 触媒装置 |
Publications (2)
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JP2022162721A JP2022162721A (ja) | 2022-10-25 |
JP7464563B2 true JP7464563B2 (ja) | 2024-04-09 |
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JP2021067691A Active JP7464563B2 (ja) | 2021-04-13 | 2021-04-13 | 触媒装置 |
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US (1) | US11964254B2 (ja) |
JP (1) | JP7464563B2 (ja) |
CN (1) | CN115199385A (ja) |
DE (1) | DE102022108564A1 (ja) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001179110A (ja) | 1999-12-28 | 2001-07-03 | Nissan Motor Co Ltd | 触媒担体および触媒コンバータ |
JP2003003837A (ja) | 2001-04-18 | 2003-01-08 | Sango Co Ltd | 筒状部材内に緩衝部材を介して柱体を保持する排気処理装置の製造方法 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS5650715U (ja) | 1979-09-28 | 1981-05-06 | ||
JPH0619793Y2 (ja) * | 1988-11-30 | 1994-05-25 | 臼井国際産業株式会社 | 排気ガス浄化装置 |
JPH08218856A (ja) * | 1995-02-15 | 1996-08-27 | Honda Motor Co Ltd | 電気加熱式触媒 |
JP3125181B2 (ja) * | 1995-12-14 | 2001-01-15 | 新日本製鐵株式会社 | 連続鋳造用ロール |
US7425312B2 (en) | 2002-04-24 | 2008-09-16 | Nissan Motor Co., Ltd. | Hydrocarbon trapping device |
JP3882670B2 (ja) | 2002-04-24 | 2007-02-21 | 日産自動車株式会社 | 触媒コンバータ |
US20030202918A1 (en) | 2002-04-24 | 2003-10-30 | Nissan Motor Co., Ltd. | Exhaust gas purification device |
CN100464855C (zh) * | 2006-07-24 | 2009-03-04 | 夏哲 | 催化剂用金属载体的制造方法 |
JP4999715B2 (ja) * | 2008-01-29 | 2012-08-15 | カルソニックカンセイ株式会社 | スリット穴付き金属触媒担体 |
JP5765221B2 (ja) * | 2011-12-28 | 2015-08-19 | トヨタ自動車株式会社 | 通電加熱式触媒装置及びその製造方法 |
WO2013137105A1 (ja) * | 2012-03-13 | 2013-09-19 | 日産自動車株式会社 | 触媒コンバータ |
US11273409B2 (en) * | 2018-08-10 | 2022-03-15 | Honda Motor Co., Ltd. | Catalyst device |
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2021
- 2021-04-13 JP JP2021067691A patent/JP7464563B2/ja active Active
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2022
- 2022-04-07 CN CN202210360720.3A patent/CN115199385A/zh active Pending
- 2022-04-08 DE DE102022108564.3A patent/DE102022108564A1/de active Pending
- 2022-04-08 US US17/715,958 patent/US11964254B2/en active Active
Patent Citations (2)
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JP2001179110A (ja) | 1999-12-28 | 2001-07-03 | Nissan Motor Co Ltd | 触媒担体および触媒コンバータ |
JP2003003837A (ja) | 2001-04-18 | 2003-01-08 | Sango Co Ltd | 筒状部材内に緩衝部材を介して柱体を保持する排気処理装置の製造方法 |
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