JP7039911B2 - 内燃機関のegr装置 - Google Patents
内燃機関のegr装置 Download PDFInfo
- Publication number
- JP7039911B2 JP7039911B2 JP2017188586A JP2017188586A JP7039911B2 JP 7039911 B2 JP7039911 B2 JP 7039911B2 JP 2017188586 A JP2017188586 A JP 2017188586A JP 2017188586 A JP2017188586 A JP 2017188586A JP 7039911 B2 JP7039911 B2 JP 7039911B2
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- Prior art keywords
- filter member
- exhaust
- surface portion
- passage
- pressure egr
- Prior art date
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- 238000002485 combustion reaction Methods 0.000 title claims description 16
- 238000011144 upstream manufacturing Methods 0.000 claims description 15
- 239000013618 particulate matter Substances 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 61
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 36
- 239000003054 catalyst Substances 0.000 description 18
- 230000009471 action Effects 0.000 description 16
- 238000004140 cleaning Methods 0.000 description 16
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 10
- 230000000694 effects Effects 0.000 description 7
- 239000000446 fuel Substances 0.000 description 7
- 230000003647 oxidation Effects 0.000 description 7
- 238000007254 oxidation reaction Methods 0.000 description 7
- 229910021529 ammonia Inorganic materials 0.000 description 5
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 4
- 239000004202 carbamide Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 239000011358 absorbing material Substances 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- WTHDKMILWLGDKL-UHFFFAOYSA-N urea;hydrate Chemical compound O.NC(N)=O WTHDKMILWLGDKL-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 229910021536 Zeolite 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
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/02—EGR systems specially adapted for supercharged engines
- F02M26/04—EGR systems specially adapted for supercharged engines with a single turbocharger
- F02M26/06—Low pressure loops, i.e. wherein recirculated exhaust gas is taken out from the exhaust downstream of the turbocharger turbine and reintroduced into the intake system upstream of the compressor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/35—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with means for cleaning or treating the recirculated gases, e.g. catalysts, condensate traps, particle filters or heaters
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust-Gas Circulating Devices (AREA)
- Exhaust Gas After Treatment (AREA)
- Processes For Solid Components From Exhaust (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Description
排気通路における後処理部材の下流側の位置に接続された低圧EGR通路と、
前記低圧EGR通路の入口部に設けられ、前記排気通路内に突出するフィルタ部材と、
を備え、
前記フィルタ部材の突出方向の先端部が鋭利な点状または線状に形成されている
ことを特徴とする内燃機関のEGR装置が提供される。
図2に、本実施形態のフィルタ部材60の第1実施例を示す。図2(A)は平面図、図2(B)は側面断面図、図2(C)は側方斜視図である。排気ガスの流れをGで示し、排気通路4の中心軸をC1で示す。特に断らない限り、中心軸C1を基準とした軸方向、半径方向および周方向をそれぞれ単に軸方向、半径方向および周方向という。
次に、図4を参照して、本実施形態のフィルタ部材60の第2実施例を説明する。なお第1実施例と同様の部分には図中同一符号を付して説明を割愛し、以下、第1実施例との相違点を主に説明する(後述の実施例でも同様)。
次に、図5を参照して、本実施形態のフィルタ部材60の第3実施例を説明する。
次に、図6を参照して、本実施形態のフィルタ部材60の第4実施例を説明する。
4 排気通路
23 フィルタ
41 低圧EGR通路
41B 入口部
60 フィルタ部材
63 先端部
Claims (4)
- 排気通路における後処理部材の下流側の位置に接続された低圧EGR通路と、
前記低圧EGR通路の入口部に設けられ、前記排気通路内に突出するフィルタ部材と、
を備え、
前記フィルタ部材の突出方向の先端部が鋭利な線状に形成され、
前記フィルタ部材は、前記排気通路の排気上流側に向けられ突出方向に対し排気下流側に向かって傾斜する前面部を有し、前記フィルタ部材の先端部は、前記前面部の上端縁部によって鋭利な線状に形成され、
前記フィルタ部材は、四角形の平板状とされた前記前面部と、四角形の平板状とされ前記前面部の上端縁部に接続された後面部と、前記前面部および前記後面部に接続され三角形の平板状とされると共に前記排気通路の軸方向に平行とされた左右の側面部とを有し、
前記フィルタ部材の突出方向は、前記排気通路の半径方向外側から内側に向かう方向であり、かつ、鉛直方向の下方から上方に向かう方向である
ことを特徴とする内燃機関のEGR装置。 - 前記後面部は、突出方向に平行か、または突出方向に対し排気上流側に向かって傾斜される
請求項1に記載の内燃機関のEGR装置。 - 前記三角形が、直角三角形または二等辺三角形である
請求項1または2に記載の内燃機関のEGR装置。 - 前記後処理部材は、排気中に含まれる粒子状物質を捕集するフィルタである
請求項1~3のいずれか一項に記載の内燃機関のEGR装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017188586A JP7039911B2 (ja) | 2017-09-28 | 2017-09-28 | 内燃機関のegr装置 |
PCT/JP2018/035359 WO2019065594A1 (ja) | 2017-09-28 | 2018-09-25 | 内燃機関のegr装置 |
CN201880062984.2A CN111164296B (zh) | 2017-09-28 | 2018-09-25 | 内燃机的egr装置 |
PH12020550126A PH12020550126A1 (en) | 2017-09-28 | 2020-03-24 | Egr device of internal combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017188586A JP7039911B2 (ja) | 2017-09-28 | 2017-09-28 | 内燃機関のegr装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2019065715A JP2019065715A (ja) | 2019-04-25 |
JP7039911B2 true JP7039911B2 (ja) | 2022-03-23 |
Family
ID=65902978
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2017188586A Active JP7039911B2 (ja) | 2017-09-28 | 2017-09-28 | 内燃機関のegr装置 |
Country Status (4)
Country | Link |
---|---|
JP (1) | JP7039911B2 (ja) |
CN (1) | CN111164296B (ja) |
PH (1) | PH12020550126A1 (ja) |
WO (1) | WO2019065594A1 (ja) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009034085A1 (de) | 2009-07-21 | 2011-01-27 | Friedrich Boysen Gmbh & Co. Kg | Abgasanlage |
JP2012237236A (ja) | 2011-05-11 | 2012-12-06 | Toyota Motor Corp | 内燃機関の排気再循環装置 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1936175B1 (en) * | 2006-12-21 | 2012-11-07 | Magneti Marelli S.p.A. | An exhaust system for an internal combustion engine provided with an exhaust gas recirculation circuit |
JP2010156240A (ja) * | 2008-12-26 | 2010-07-15 | Toyota Motor Corp | 内燃機関の排気還流装置 |
JP2012149558A (ja) * | 2011-01-18 | 2012-08-09 | Toyota Motor Corp | 内燃機関の排気再循環装置 |
JP5625970B2 (ja) * | 2011-02-07 | 2014-11-19 | トヨタ自動車株式会社 | 内燃機関の排気再循環装置 |
-
2017
- 2017-09-28 JP JP2017188586A patent/JP7039911B2/ja active Active
-
2018
- 2018-09-25 WO PCT/JP2018/035359 patent/WO2019065594A1/ja active Application Filing
- 2018-09-25 CN CN201880062984.2A patent/CN111164296B/zh active Active
-
2020
- 2020-03-24 PH PH12020550126A patent/PH12020550126A1/en unknown
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009034085A1 (de) | 2009-07-21 | 2011-01-27 | Friedrich Boysen Gmbh & Co. Kg | Abgasanlage |
JP2012237236A (ja) | 2011-05-11 | 2012-12-06 | Toyota Motor Corp | 内燃機関の排気再循環装置 |
Also Published As
Publication number | Publication date |
---|---|
CN111164296A (zh) | 2020-05-15 |
CN111164296B (zh) | 2022-06-21 |
JP2019065715A (ja) | 2019-04-25 |
PH12020550126A1 (en) | 2021-02-08 |
WO2019065594A1 (ja) | 2019-04-04 |
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