JP4293890B2 - 排気浄化装置 - Google Patents
排気浄化装置 Download PDFInfo
- Publication number
- JP4293890B2 JP4293890B2 JP2003395277A JP2003395277A JP4293890B2 JP 4293890 B2 JP4293890 B2 JP 4293890B2 JP 2003395277 A JP2003395277 A JP 2003395277A JP 2003395277 A JP2003395277 A JP 2003395277A JP 4293890 B2 JP4293890 B2 JP 4293890B2
- Authority
- JP
- Japan
- Prior art keywords
- injection
- exhaust
- temperature
- fuel
- engine
- 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 - Lifetime
Links
- 238000000746 purification Methods 0.000 title claims description 7
- 238000002347 injection Methods 0.000 claims description 82
- 239000007924 injection Substances 0.000 claims description 82
- 239000000446 fuel Substances 0.000 claims description 43
- 239000003054 catalyst Substances 0.000 claims description 21
- 230000008929 regeneration Effects 0.000 claims description 12
- 238000011069 regeneration method Methods 0.000 claims description 12
- 239000002826 coolant Substances 0.000 claims description 7
- 239000000498 cooling water Substances 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 230000000630 rising effect Effects 0.000 claims 1
- 238000007254 oxidation reaction Methods 0.000 description 12
- 239000007789 gas Substances 0.000 description 11
- 230000003647 oxidation Effects 0.000 description 9
- 238000002485 combustion reaction Methods 0.000 description 5
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 206010000117 Abnormal behaviour Diseases 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000013618 particulate matter Substances 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 229910052684 Cerium Inorganic materials 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 230000004913 activation Effects 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
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 229910052878 cordierite Inorganic materials 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 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
- 238000004880 explosion Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
Images
Classifications
-
- 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
- Y02T10/40—Engine management systems
Landscapes
- Processes For Solid Components From Exhaust (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Description
A.開度信号22aから算定したエンジン負荷と回転数信号23aから算定したエンジン回転数に応じて、圧縮上死点付近で主噴射が行なわれるように通常モードの噴射信号21aを燃料噴射装置21へ送信する機能、
B.予め設定した時間が経過した際に、主噴射後の燃料が着火しない時期にポスト噴射が行なわれるように強制再生モードの噴射信号21aを燃料噴射装置21へ送信する機能、
C.ポスト噴射の開始前に、温度信号18aから算定した触媒床温度に応じて、主噴射後の燃料が着火可能な時期にアフタ噴射が行なわれるように昇温モードの噴射信号21aを燃料噴射装置21へ送信する機能、
D.ディーゼルエンジン1の起動後に、アイドル回転数が高められるように噴射信号21aを燃料噴射装置21へ送信する機能、
E.ディーゼルエンジン1の起動後に、排気流量が押さえられるように指令信号25aを排気絞り弁25へ送信する機能、
F.ディーゼルエンジン1の起動後に、冷却水温度に応じてアフタ噴射が行なわれるように噴射信号21aを燃料噴射装置21へ送信する機能、
G.触媒床温度に応じてアフタ噴射にポスト噴射が加わるように噴射信号21aを燃料噴射装置21へ送信する機能、
などを具備している。
11 排気管(エンジン排気系統)
13 パティキュレートフィルタ
20 制御装置(燃料噴射制御手段)
21 燃料噴射装置(燃料噴射制御手段)
25 排気絞り弁(排気絞り手段)
29 温度センサ
Claims (1)
- エンジン排気系統に組み込んだ触媒再生型パティキュレートフィルタと、エンジン水温を検知する温度センサと、指令信号に応じて作動し且つ排気流量を制限し得る排気絞り手段と、噴射信号に応じて作動し且つ燃料噴射時期及び噴射量を調整し得る燃料噴射装置と、上死点付近での燃料主噴射後の燃料が着火可能な時期に燃料アフタ噴射が行なわれるように昇温モードの噴射信号を燃料噴射装置へ送信する制御装置とを有し、エンジン起動後に、アイドル回転数が高められるように噴射信号を燃料噴射装置へ送信する機能、エンジン起動後に、排気流量が抑えられるように指令信号を排気絞り手段へ送信する機能、及びエンジン起動後の冷却水温度が設定値に達した際に、アフタ噴射が行なわれるように噴射信号を燃料噴射装置へ送信する機能を制御装置に具備させ、アイドル回転数を高め且つ排気流量を抑えるときの冷却水温度よりも、アフタ噴射を開始するときの冷却水温度を高く設定したことを特徴とする排気浄化装置。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003395277A JP4293890B2 (ja) | 2003-11-26 | 2003-11-26 | 排気浄化装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003395277A JP4293890B2 (ja) | 2003-11-26 | 2003-11-26 | 排気浄化装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005155442A JP2005155442A (ja) | 2005-06-16 |
JP4293890B2 true JP4293890B2 (ja) | 2009-07-08 |
Family
ID=34721089
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2003395277A Expired - Lifetime JP4293890B2 (ja) | 2003-11-26 | 2003-11-26 | 排気浄化装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP4293890B2 (ja) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3988785B2 (ja) * | 2006-02-01 | 2007-10-10 | いすゞ自動車株式会社 | 排気ガス浄化システムの制御方法及び排気ガス浄化システム |
JP4802922B2 (ja) * | 2006-08-02 | 2011-10-26 | トヨタ自動車株式会社 | 内燃機関のパティキュレートフィルタ再生システム |
JP5037570B2 (ja) * | 2009-07-02 | 2012-09-26 | 日立建機株式会社 | 作業機械 |
JP5682159B2 (ja) * | 2010-06-30 | 2015-03-11 | マツダ株式会社 | ディーゼルエンジン |
-
2003
- 2003-11-26 JP JP2003395277A patent/JP4293890B2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JP2005155442A (ja) | 2005-06-16 |
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