JP2007278100A - 排気ガス浄化装置 - Google Patents
排気ガス浄化装置 Download PDFInfo
- Publication number
- JP2007278100A JP2007278100A JP2006102545A JP2006102545A JP2007278100A JP 2007278100 A JP2007278100 A JP 2007278100A JP 2006102545 A JP2006102545 A JP 2006102545A JP 2006102545 A JP2006102545 A JP 2006102545A JP 2007278100 A JP2007278100 A JP 2007278100A
- Authority
- JP
- Japan
- Prior art keywords
- exhaust gas
- catalytic converter
- exhaust
- gas purification
- catalyst
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000003054 catalyst Substances 0.000 claims abstract description 101
- 230000003197 catalytic effect Effects 0.000 claims abstract description 90
- 229910000510 noble metal Inorganic materials 0.000 claims abstract description 34
- 238000002485 combustion reaction Methods 0.000 claims abstract description 17
- 238000000746 purification Methods 0.000 claims description 100
- 239000007789 gas Substances 0.000 description 156
- 230000000052 comparative effect Effects 0.000 description 20
- 230000000694 effects Effects 0.000 description 16
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 7
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 description 7
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 description 7
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 5
- 230000017525 heat dissipation Effects 0.000 description 5
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 5
- 239000010948 rhodium Substances 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 230000033228 biological regulation Effects 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 229910001882 dioxygen Inorganic materials 0.000 description 3
- 229910052697 platinum Inorganic materials 0.000 description 3
- 229910052703 rhodium Inorganic materials 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 239000011800 void material Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 125000004430 oxygen atom Chemical group O* 0.000 description 2
- 229910052763 palladium Inorganic materials 0.000 description 2
- 229910052684 Cerium Inorganic materials 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- -1 cerium ion Chemical class 0.000 description 1
- 229910000420 cerium oxide Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 229910052878 cordierite Inorganic materials 0.000 description 1
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000033116 oxidation-reduction process Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
Images
Classifications
-
- 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
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
- B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
- B01D53/9445—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC]
- B01D53/9454—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC] characterised by a specific device
-
- 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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/024—Multiple impregnation or coating
- B01J37/0242—Coating followed by impregnation
-
- 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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/024—Multiple impregnation or coating
- B01J37/0244—Coatings comprising several layers
-
- 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
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/08—Other arrangements or adaptations of exhaust conduits
- F01N13/10—Other arrangements or adaptations of exhaust conduits of exhaust manifolds
- F01N13/105—Other arrangements or adaptations of exhaust conduits of exhaust manifolds having the form of a chamber directly connected to the cylinder head, e.g. without having tubes connected between cylinder head and chamber
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/10—Noble metals or compounds thereof
- B01D2255/102—Platinum group metals
- B01D2255/1021—Platinum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/10—Noble metals or compounds thereof
- B01D2255/102—Platinum group metals
- B01D2255/1023—Palladium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/10—Noble metals or compounds thereof
- B01D2255/102—Platinum group metals
- B01D2255/1025—Rhodium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/90—Physical characteristics of catalysts
- B01D2255/92—Dimensions
- B01D2255/9202—Linear dimensions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
- B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
- B01D53/9459—Removing one or more of nitrogen oxides, carbon monoxide, or hydrocarbons by multiple successive catalytic functions; systems with more than one different function, e.g. zone coated catalysts
- B01D53/9477—Removing one or more of nitrogen oxides, carbon monoxide, or hydrocarbons by multiple successive catalytic functions; systems with more than one different function, e.g. zone coated catalysts with catalysts positioned on separate bricks, e.g. exhaust systems
-
- 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
- B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
-
- 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
- F01N2330/00—Structure of catalyst support or particle filter
- F01N2330/30—Honeycomb supports characterised by their structural details
-
- 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
- F01N2340/00—Dimensional characteristics of the exhaust system, e.g. length, diameter or volume of the apparatus; Spatial arrangements of exhaust apparatuses
- F01N2340/02—Dimensional characteristics of the exhaust system, e.g. length, diameter or volume of the apparatus; Spatial arrangements of exhaust apparatuses characterised by the distance of the apparatus to the engine, or the distance between two exhaust treating apparatuses
-
- 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
- F01N2340/00—Dimensional characteristics of the exhaust system, e.g. length, diameter or volume of the apparatus; Spatial arrangements of exhaust apparatuses
- F01N2340/04—Dimensional characteristics of the exhaust system, e.g. length, diameter or volume of the apparatus; Spatial arrangements of exhaust apparatuses characterised by the arrangement of an exhaust pipe, manifold or apparatus in relation to vehicle frame or particular vehicle parts
-
- 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
- F01N2510/00—Surface coverings
- F01N2510/06—Surface coverings for exhaust purification, e.g. catalytic reaction
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- General Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Toxicology (AREA)
- Environmental & Geological Engineering (AREA)
- Biomedical Technology (AREA)
- Exhaust Gas After Treatment (AREA)
- Catalysts (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
【解決手段】エンジンヘッドブロック3内で各気筒からの排気系統を集合させ各気筒から第1触媒コンバータ4までの長さを短くした排気系統の構造およびウォッシュコート層を薄くしかつウォッシュコート層内に空隙を設けた触媒を用いた。
【選択図】図1
Description
本実施形態の構成について、以下図1乃至図3を参照して説明する。まず、本実施形態のエンジンの排気ガス浄化装置の構成について説明する。図1は、テスト車Zに用いられる本実施形態のエンジンの排気ガス浄化装置の斜視図である。同図において、本実施形態のエンジン1の排気ガス浄化装置20を構成するのは、エンジンヘッドブロック3、内部に触媒9aを保持しエンジン直後に結合されている第1触媒コンバータ4、内部に触媒9bを保持し排気系統において第1触媒コンバータ4の後に接続されている第2触媒コンバータ5および排気管6、7である。
次に第2実施形態の構成について説明する。本実施形態は、第1実施形態のテスト車Zと排気系統の構造は同じである。すなわち、図1に示すエンジンヘッドブロック3、排気管6、7および第1および第2触媒コンバータ4、5の各々の構造および配置は、第1実施形態と共通である。しかし、第2実施形態の構成の排気ガス浄化用の触媒は、図2に示すテスト車Yの触媒106a、107aと同様のものであり、ウォッシュコート層の厚さは、薄くなっていない。また、ウォッシュコート層に空隙は形成されていない。したがって、本実施形態の排気ガス浄化装置は、図1に示す排気ガス浄化装置20において、触媒9a、9bを、それぞれ図2に示す排気ガス浄化装置108aの触媒106a、107aに置き換えたものである。本実施形態は、図1に示す排気ガス浄化装置20の排気系統の構造に起因する効果のみを生じさせる構成である。
以下、第1および第2実施形態のエンジン1の排気ガス浄化装置20の作用および効果について説明する。以下、エンジンの排気ガス浄化装置の排気ガス浄化能力について判定する対象の有害物質は、NMOGおよびNOxとする。また、排気ガス浄化能力は、次の3つのパラメータを基準として判定する。一つは、冷機始動時に単位距離を走行したときの排気ガス中の実際の残留有害物質量を、実走行時の走行距離に対して冷機始動走行の割合を考慮して補正した値、CT(mg/km)である。一つは、完全暖気時に単位距離を走行したときの排気ガス中の実際の残留有害物質量を、実走行時の走行距離に対して完全暖気走行の割合を考慮して補正した値、CS(mg/km)である。もう一つは、暖気後再始動時に単位距離を走行したときの排気ガス中の実際の残留有害物質量を、実走行時の走行距離に対して暖気後再始動走行の割合を考慮して補正した値、HT(mg/km)である。これら3種のパラメータの和、CT+CS+HTを実走行における有害物質排出量の基準として、排気ガス浄化装置1の排気ガス浄化能力を判定する。すなわち、CT+CS+HTの値が低いほど、排気ガス浄化装置の排気ガス浄化能力が高いことになる。
2 シリンダブロック
3 エンジンヘッドブロック
4 第1触媒コンバータ
5 第2触媒コンバータ
6、7 排気管
8 排気出口
9a、9b 触媒
10 担体
11 ウォッシュコート層
11a ウォッシュコート層(辺部分)
11b ウォッシュコート層(コーナ部分)
12 第1ウォッシュコート層
13 第2ウォッシュコート層
14 多孔質構造体
15 空隙
16 セル
17 貴金属
20 排気ガス浄化装置
Claims (3)
- 自動車用内燃エンジンに結合される第1触媒コンバータおよび前記第1触媒コンバータの後に結合される第2触媒コンバータを有する自動車用内燃エンジンの排気ガス浄化装置であって、
全気筒の排気系統が内部で集合され側面に単一の排気出口を有するエンジンヘッドブロックを有し、
前記第1触媒コンバータが前記エンジンヘッドブロック直後に配置され、
前記第1触媒コンバータと前記エンジンヘッドブロックが単一の排気管で結合され、
前記第1触媒コンバータおよび前記第2触媒コンバータのそれぞれに保持される触媒の耐熱温度が800℃以上であること、
を特徴とする自動車用内燃エンジンの排気ガス浄化装置。 - 前記第1触媒コンバータおよび前記第2触媒コンバータのそれぞれに保持される触媒の担体に形成され貴金属を担持するウォッシュコート層の厚さが0.2mm以下であることを特徴とする請求項1記載の自動車用内燃エンジンの排気ガス浄化装置。
- 前記ウォッシュコート層が2層からなり、それぞれの層が空隙を有する触媒を第1および第2触媒コンバータに保持することを特徴とする請求項2記載の自動車用内燃エンジンの排気ガス浄化装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006102545A JP2007278100A (ja) | 2006-04-03 | 2006-04-03 | 排気ガス浄化装置 |
US11/723,753 US20070283686A1 (en) | 2006-04-03 | 2007-03-21 | Exhaust gas purification apparatus |
CN2007100913927A CN101050717B (zh) | 2006-04-03 | 2007-03-30 | 排气净化装置 |
DE602007011140T DE602007011140D1 (de) | 2006-04-03 | 2007-04-03 | Abgasreinigungsvorrichtung |
EP07006977A EP1843017B1 (en) | 2006-04-03 | 2007-04-03 | Exhaust gas purification apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006102545A JP2007278100A (ja) | 2006-04-03 | 2006-04-03 | 排気ガス浄化装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2007278100A true JP2007278100A (ja) | 2007-10-25 |
Family
ID=38198372
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006102545A Pending JP2007278100A (ja) | 2006-04-03 | 2006-04-03 | 排気ガス浄化装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20070283686A1 (ja) |
EP (1) | EP1843017B1 (ja) |
JP (1) | JP2007278100A (ja) |
CN (1) | CN101050717B (ja) |
DE (1) | DE602007011140D1 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010016438A1 (ja) | 2008-08-04 | 2010-02-11 | 本田技研工業株式会社 | 排ガス浄化装置 |
CN102650227A (zh) * | 2011-02-25 | 2012-08-29 | 本田技研工业株式会社 | 内燃机的废气净化装置 |
JP2013034970A (ja) * | 2011-08-10 | 2013-02-21 | Honda Motor Co Ltd | 内燃機関の排気浄化装置 |
US11376568B2 (en) | 2018-02-22 | 2022-07-05 | N.E. Chemcat Corporation | Exhaust gas-purifying three-way catalyst |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20100064876A (ko) * | 2008-12-05 | 2010-06-15 | 현대자동차주식회사 | 배기가스 필터 시스템 |
US9266092B2 (en) | 2013-01-24 | 2016-02-23 | Basf Corporation | Automotive catalyst composites having a two-metal layer |
JP6090208B2 (ja) | 2014-02-27 | 2017-03-08 | マツダ株式会社 | エンジンの排気装置 |
JP6219872B2 (ja) * | 2015-03-27 | 2017-10-25 | トヨタ自動車株式会社 | 排ガス浄化用触媒 |
EP3725407A1 (en) * | 2016-04-13 | 2020-10-21 | Toyota Jidosha Kabushiki Kaisha | Exhaust gas cleaning catalyst, exhaust gas cleaning method, and exhaust gas cleaning system |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3441381A (en) * | 1965-06-22 | 1969-04-29 | Engelhard Ind Inc | Apparatus for purifying exhaust gases of an internal combustion engine |
US3896616A (en) * | 1972-04-21 | 1975-07-29 | Engelhard Min & Chem | Process and apparatus |
US5220789A (en) * | 1991-03-05 | 1993-06-22 | Ford Motor Company | Integral unitary manifold-muffler-catalyst device |
JPH0760117A (ja) * | 1993-08-30 | 1995-03-07 | Honda Motor Co Ltd | 排気ガス浄化用触媒 |
DE59709173D1 (de) * | 1996-05-23 | 2003-02-27 | Scambia Ind Developments Ag Sc | Auspuffkrümmer mit Katalysator |
US5881554A (en) * | 1998-03-23 | 1999-03-16 | Ford Global Technologies, Inc. | Integrated manifold, muffler, and catalyst device |
JP3489048B2 (ja) * | 2000-02-01 | 2004-01-19 | 日産自動車株式会社 | 排気ガス浄化用触媒 |
JP2002355561A (ja) * | 2001-03-26 | 2002-12-10 | Mazda Motor Corp | 排気ガス浄化用触媒、及び排気ガス浄化方法 |
EP1340541A1 (en) * | 2002-02-28 | 2003-09-03 | Corning Incorporated | Structured catalysts incorporating thick washcoats and method of preparation thereof |
US6936561B2 (en) * | 2002-12-02 | 2005-08-30 | Corning Incorporated | Monolithic zeolite coated structures and a method of manufacture |
EP1547675A1 (en) * | 2003-12-24 | 2005-06-29 | Corning Incorporated | Coated microstructures and methods of coating same |
-
2006
- 2006-04-03 JP JP2006102545A patent/JP2007278100A/ja active Pending
-
2007
- 2007-03-21 US US11/723,753 patent/US20070283686A1/en not_active Abandoned
- 2007-03-30 CN CN2007100913927A patent/CN101050717B/zh active Active
- 2007-04-03 DE DE602007011140T patent/DE602007011140D1/de active Active
- 2007-04-03 EP EP07006977A patent/EP1843017B1/en not_active Ceased
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010016438A1 (ja) | 2008-08-04 | 2010-02-11 | 本田技研工業株式会社 | 排ガス浄化装置 |
US8601802B2 (en) | 2008-08-04 | 2013-12-10 | Honda Motor Co., Ltd. | Exhaust gas purifying device |
CN102650227A (zh) * | 2011-02-25 | 2012-08-29 | 本田技研工业株式会社 | 内燃机的废气净化装置 |
US8640447B2 (en) | 2011-02-25 | 2014-02-04 | Honda Motor Co., Ltd. | Exhaust emission control device for internal combustion engine |
JP2013034970A (ja) * | 2011-08-10 | 2013-02-21 | Honda Motor Co Ltd | 内燃機関の排気浄化装置 |
US11376568B2 (en) | 2018-02-22 | 2022-07-05 | N.E. Chemcat Corporation | Exhaust gas-purifying three-way catalyst |
Also Published As
Publication number | Publication date |
---|---|
CN101050717B (zh) | 2012-05-30 |
US20070283686A1 (en) | 2007-12-13 |
DE602007011140D1 (de) | 2011-01-27 |
CN101050717A (zh) | 2007-10-10 |
EP1843017A1 (en) | 2007-10-10 |
EP1843017B1 (en) | 2010-12-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US9999871B2 (en) | Catalytic converter | |
JP6611611B2 (ja) | 排ガス浄化用触媒 | |
KR101202162B1 (ko) | 적층 배기 처리 촉매 | |
EP1820561B1 (en) | Diesel particulate filter comprising a catalytic layer | |
JP2007278100A (ja) | 排気ガス浄化装置 | |
JP5664918B2 (ja) | 排ガス浄化用触媒 | |
JP2015520024A (ja) | ガソリンパーティキュレートフィルタの上流側で使用するための始動時触媒 | |
JPWO2006057067A1 (ja) | 排ガス浄化用触媒 | |
JP6445228B1 (ja) | 排ガス浄化用触媒 | |
WO2019065206A1 (ja) | 排ガス浄化用触媒 | |
JPWO2016039302A1 (ja) | 排ガス浄化用触媒 | |
JPWO2006103781A1 (ja) | 排ガスの浄化装置及び排ガスの浄化触媒 | |
JP2012206005A (ja) | 排ガス浄化触媒 | |
KR101432331B1 (ko) | 배출 가스 정화용 촉매 | |
JP2007278101A (ja) | 排気ガス浄化用触媒コンバータ装置 | |
JP4372764B2 (ja) | 排ガス浄化装置 | |
JP5599141B2 (ja) | 自動二輪車用排ガス浄化触媒 | |
JP2010149015A (ja) | 排気浄化触媒及び排気浄化装置 | |
JP5232258B2 (ja) | 内燃機関の排気浄化装置 | |
JP2006231108A (ja) | 排気ガス浄化装置 | |
US20070009398A1 (en) | Waste gas cleaning system for an internal combustion engine | |
JP2012217937A (ja) | 排ガス浄化用触媒及び該排ガス浄化用触媒を備える排ガス浄化装置 | |
WO2024195310A1 (ja) | 排ガス浄化用触媒 | |
JP2007152303A (ja) | 水素製造触媒 | |
JPWO2008075769A1 (ja) | 排ガス浄化用触媒 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20080404 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20080408 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20080609 |
|
A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20080722 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20080829 |