JP4580279B2 - 車両用エンジンのegr装置 - Google Patents
車両用エンジンのegr装置 Download PDFInfo
- Publication number
- JP4580279B2 JP4580279B2 JP2005153215A JP2005153215A JP4580279B2 JP 4580279 B2 JP4580279 B2 JP 4580279B2 JP 2005153215 A JP2005153215 A JP 2005153215A JP 2005153215 A JP2005153215 A JP 2005153215A JP 4580279 B2 JP4580279 B2 JP 4580279B2
- Authority
- JP
- Japan
- Prior art keywords
- egr
- exhaust
- engine
- control valves
- state
- 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.)
- Expired - Fee Related
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Classifications
-
- 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
- F02M26/38—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with two or more EGR valves disposed in parallel
-
- 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
- F02M26/05—High pressure loops, i.e. wherein recirculated exhaust gas is taken out from the exhaust system upstream of the turbine and reintroduced into the intake system downstream of the compressor
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust-Gas Circulating Devices (AREA)
Description
2 エキゾーストマニフォールド
3 インテークマニフォールド
a、b EGR装置
4a、4b EGR通路
5a、5b コントロールバルブ
6a、6b EGRクーラ
7 コントロールユニット
8 可変容量式排気ターボチャージャ
9 インタークーラ
Claims (1)
- 排気の一部を吸気系に再循環させる2系統のEGR装置(a)(b)と、各EGR装置(a)(b)を有効状態と無効状態に切換制御するコントロールバルブ(5a)(5b)と、エンジン(1)の運転状態に応答して各系統のコントロールバルブ(5a)(5b)を個々に開閉制御するコントロールユニット(7)を備え、常時は両コントロールバルブ(5a)(5b)を開弁保持させて両系統のEGR装置(a)(b)を有効状態に保持させる一方、エキゾーストマニフォールド(2)とインテークマニフォールド(3)の差圧が小さい領域でエンジン(1)が運転されていることを検出したときに一方のコントロールバルブ(5a)のみを閉作動させて当該コントロールバルブ(5a)を設けたEGR装置(a)を無効状態に切換制御するようにしたことを特徴とする車両用エンジンのEGR装置。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005153215A JP4580279B2 (ja) | 2005-05-26 | 2005-05-26 | 車両用エンジンのegr装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005153215A JP4580279B2 (ja) | 2005-05-26 | 2005-05-26 | 車両用エンジンのegr装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006329051A JP2006329051A (ja) | 2006-12-07 |
JP4580279B2 true JP4580279B2 (ja) | 2010-11-10 |
Family
ID=37550994
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005153215A Expired - Fee Related JP4580279B2 (ja) | 2005-05-26 | 2005-05-26 | 車両用エンジンのegr装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP4580279B2 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2021055635A (ja) * | 2019-09-30 | 2021-04-08 | いすゞ自動車株式会社 | 排気再循装置 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07247911A (ja) * | 1994-03-07 | 1995-09-26 | Komatsu Ltd | エンジンの排気ガス還流装置 |
JP2000064912A (ja) * | 1998-08-24 | 2000-03-03 | Isuzu Motors Ltd | Egr装置 |
-
2005
- 2005-05-26 JP JP2005153215A patent/JP4580279B2/ja not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07247911A (ja) * | 1994-03-07 | 1995-09-26 | Komatsu Ltd | エンジンの排気ガス還流装置 |
JP2000064912A (ja) * | 1998-08-24 | 2000-03-03 | Isuzu Motors Ltd | Egr装置 |
Also Published As
Publication number | Publication date |
---|---|
JP2006329051A (ja) | 2006-12-07 |
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