JP4561236B2 - 内燃機関の過給システム - Google Patents
内燃機関の過給システム Download PDFInfo
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- JP4561236B2 JP4561236B2 JP2004241988A JP2004241988A JP4561236B2 JP 4561236 B2 JP4561236 B2 JP 4561236B2 JP 2004241988 A JP2004241988 A JP 2004241988A JP 2004241988 A JP2004241988 A JP 2004241988A JP 4561236 B2 JP4561236 B2 JP 4561236B2
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- Prior art keywords
- egr
- pressure turbocharger
- passage
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- Expired - Fee Related
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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
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/033—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices
- F01N3/035—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices with catalytic reactors, e.g. catalysed diesel particulate filters
-
- 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
- F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
- F01N3/0828—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents characterised by the absorbed or adsorbed substances
- F01N3/0842—Nitrogen oxides
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/004—Engines characterised by provision of pumps driven at least for part of the time by exhaust with exhaust drives arranged in series
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/013—Engines characterised by provision of pumps driven at least for part of the time by exhaust with exhaust-driven pumps arranged in series
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/12—Control of the pumps
- F02B37/18—Control of the pumps by bypassing exhaust from the inlet to the outlet of turbine or to the atmosphere
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/12—Control of the pumps
- F02B37/22—Control of the pumps by varying cross-section of exhaust passages or air passages, e.g. by throttling turbine inlets or outlets or by varying effective number of guide conduits
-
- 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
- F02M26/08—EGR systems specially adapted for supercharged engines for engines having two or more intake charge compressors or exhaust gas turbines, e.g. a turbocharger combined with an additional compressor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
- F02B29/04—Cooling of air intake supply
- F02B29/0406—Layout of the intake air cooling or coolant circuit
- F02B29/0412—Multiple heat exchangers arranged in parallel or in series
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
- F02B29/04—Cooling of air intake supply
- F02B29/0406—Layout of the intake air cooling or coolant circuit
- F02B29/0418—Layout of the intake air cooling or coolant circuit the intake air cooler having a bypass or multiple flow paths within the heat exchanger to vary the effective heat transfer surface
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/12—Control of the pumps
- F02B37/24—Control of the pumps by using pumps or turbines with adjustable guide vanes
-
- 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
- F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
- F02M26/23—Layout, e.g. schematics
- F02M26/28—Layout, e.g. schematics with liquid-cooled heat exchangers
-
- 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
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Exhaust Gas After Treatment (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Processes For Solid Components From Exhaust (AREA)
- Supercharger (AREA)
- Exhaust-Gas Circulating Devices (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Description
図1は本発明の過給システムの一形態を示している。本過給システムは、内燃機関としてのディーゼルエンジン(以下、エンジンと称することがある。)に適用される。エンジン1は吸気通路2と排気通路3とを備えており、それらの通路2、3の間には低圧ターボ過給機4及び高圧ターボ過給機5が設けられている。これらのターボ過給機4、5は、排気通路3に配置されるタービン4b、5bにて排気エネルギを回収し、そのエネルギで吸気通路2に配置されるコンプレッサ4a、5aを駆動して吸気を圧縮する周知の装置である。高圧ターボ過給機5はのタービン5bは低圧ターボ過給機4のタービン4bよりも排気通路3の上流に配置され、コンプレッサ5aは低圧ターボ過給機4のコンプレッサ4aよりも吸気通路2の下流に配置される。従って、低圧ターボ過給機4にて圧縮された吸気は高圧ターボ過給機5にてさらに圧縮されてエンジン1のシリンダ(不図示)内に送り込まれる。高圧ターボ過給機5の容量は低圧ターボ過給機4の容量よりも小さい。すなわち、高圧ターボ過給機5のコンプレッサ5a及びタービン5bの容量は低圧ターボ過給機4のコンプレッサ4a及びタービン4bの容量よりもそれぞれ小さい。
図5は本発明の第2の形態に係る過給システムを示している。本形態は、低圧ターボ過給機4が、タービン4bの入口部分の流路断面積を変更可能ないわゆる可変ノズル式ターボ過給機とされることにより、低圧ターボ過給機を可変絞り手段として機能させる点が図1の形態と相違する。また、EGRクーラ17の冷却水は、機関冷却用のラジエータ(不図示)とは別に設けられたEGR用ラジエータ31に導かれる。そのEGR用ラジエータ31とEGRクーラ17とを結ぶ冷却系は機関冷却用ラジエータを含む機関冷却系とは分離されている。すなわち、両冷却系の冷却水循環経路は互いに交わることなく分離されている。そして、EGRクーラ17とラジエータ31とを結ぶ流路(往路又は復路の何れでもよい)には冷却水の循環用のウォーターポンプ32が接続されている。過給システムのその余の構成は図1の形態と同じである。従って、図5において上述した図1の形態と共通する部分には同一の参照符号を付し、それらの説明は省略する。
2 吸気通路
2a 主通路
2b 吸気バイパス通路
3 排気通路
3a 主通路
3b 排気バイパス通路
4 低圧ターボ過給機
4a コンプレッサ
4b タービン
5 高圧ターボ過給機
5a コンプレッサ
5b タービン
8 スロットル弁
10 インタークーラ
11 第1切替弁(流路選択手段)
12 第2切替弁(流路選択手段)
14 排気バイパス弁
15 排気浄化装置
16 EGR通路
17 EGRクーラ
18 EGR弁
31 EGR用ラジエータ
32 ウォーターポンプ
33 インタークーラ
Claims (1)
- 低圧ターボ過給機と、
前記低圧ターボ過給機のタービンよりも排気通路の上流に配置されたタービン及び前記低圧ターボ過給機のコンプレッサよりも吸気通路の下流に配置されたコンプレッサをそれぞれ有し、前記低圧ターボ過給機よりも容量が小さい高圧ターボ過給機と、
前記高圧ターボ過給機のタービンと前記低圧ターボ過給機のタービンとの間に設定されたEGR取出位置と、前記低圧ターボ過給機のコンプレッサと前記高圧ターボ過給機のコンプレッサとの間に設定されたEGR導入位置とを結ぶEGR通路と、
前記EGR通路を通過するEGR量を調整するEGR弁と、
内燃機関の運転状態に応じたEGR量が得られるように前記EGR弁を制御するEGR弁制御手段と、
前記排気通路の前記EGR取出位置の下流に設けられ、開度調整が可能な可変絞り手段と、
前記可変絞り手段の開度を制御する絞り制御手段と、
前記吸気通路に導入されているEGR量を検出するEGR量検出手段と、を備え、
前記EGR弁制御手段は、前記EGR量検出手段によるEGR量の検出値を帰還量として、前記目標EGR量に対する前記検出値の偏差が減少するように前記EGR弁をフィードバック制御し、
前記絞り制御手段は、前記EGR弁のフィードバック制御が所定の限界を超えているか否か判断し、前記限界を超えている場合に前記偏差が減少する方向に前記可変絞り手段の開度を変化させ、
前記低圧ターボ過給機として、タービンの入口部分の流路断面積を変更可能な可変ノズル式ターボ過給機が設けられることにより、該低圧ターボ過給機が前記可変絞り手段として機能し、
前記絞り制御手段は、前記限界を超えている場合に実行すべきものとして予め用意されたマップに基づいて前記低圧ターボ過給機のノズル開度の変更幅を取得し、その取得された変更幅に従って前記低圧ターボ過給機のノズル開度をオープンループ制御することにより、前記EGR量の前記偏差を減少させる、
ことを特徴とする過給システム。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004241988A JP4561236B2 (ja) | 2004-08-23 | 2004-08-23 | 内燃機関の過給システム |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004241988A JP4561236B2 (ja) | 2004-08-23 | 2004-08-23 | 内燃機関の過給システム |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006057570A JP2006057570A (ja) | 2006-03-02 |
JP4561236B2 true JP4561236B2 (ja) | 2010-10-13 |
Family
ID=36105246
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004241988A Expired - Fee Related JP4561236B2 (ja) | 2004-08-23 | 2004-08-23 | 内燃機関の過給システム |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP4561236B2 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012102651A (ja) * | 2010-11-09 | 2012-05-31 | Mitsubishi Heavy Ind Ltd | エンジン排気ガス浄化装置 |
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JP2006097684A (ja) * | 2004-09-27 | 2006-04-13 | Borgwarner Inc | Vtgタービン段を利用する多段ターボ過給装置 |
FR2894623B1 (fr) * | 2005-12-08 | 2008-02-01 | Renault Sas | Procede de commande d'un moteur comportant une boucle de recirculation de gaz d'echappement de type basse pression |
GB0601315D0 (en) * | 2006-01-23 | 2006-03-01 | Ricardo Uk Ltd | Supercharged diesel engines |
JP4935094B2 (ja) * | 2006-02-02 | 2012-05-23 | いすゞ自動車株式会社 | ディーゼルエンジンの2段式過給システム |
US20080000230A1 (en) * | 2006-06-30 | 2008-01-03 | Caterpillar Inc. | Exhaust Gas Recirculation System |
ITMI20061479A1 (it) | 2006-07-27 | 2008-01-28 | Iveco Spa | Motore con recupero dell'energia e sistema catalitico di trattamento dei gas di scarico |
US7377270B2 (en) | 2006-10-23 | 2008-05-27 | Caterpillar Inc. | Exhaust gas recirculation in a homogeneous charge compression ignition engine |
DE102007032736A1 (de) * | 2007-07-13 | 2009-01-15 | Emitec Gesellschaft Für Emissionstechnologie Mbh | Abgasnachbehandlung vor einem Turbolader |
JP5164737B2 (ja) * | 2008-08-19 | 2013-03-21 | ヤンマー株式会社 | エンジン |
JP5163514B2 (ja) * | 2009-01-20 | 2013-03-13 | トヨタ自動車株式会社 | 過給機付き内燃機関の制御装置 |
DE102010010480A1 (de) * | 2010-03-06 | 2011-09-08 | Volkswagen Ag | Brennkraftmaschine mit zweistufiger Aufladung |
JP2011226374A (ja) * | 2010-04-20 | 2011-11-10 | Fuji Heavy Ind Ltd | エンジン制御装置 |
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JP6170263B1 (ja) * | 2017-01-31 | 2017-07-26 | 矢野 隆志 | 中圧egr低圧段駆動階層型電動ターボチャージャー装置を装着した動力システム |
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US11939929B2 (en) | 2021-08-19 | 2024-03-26 | Deere &Company | Engine electrified air system including electric turbocharger and exhaust gas recirculation pump |
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CN117418947B (zh) * | 2023-12-18 | 2024-04-16 | 潍柴动力股份有限公司 | 一种egr***的控制方法、装置、电子设备和存储介质 |
CN117432539B (zh) * | 2023-12-18 | 2024-03-19 | 潍柴动力股份有限公司 | 一种egr***的开度控制方法、装置、电子设备和存储介质 |
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JPH0518251A (ja) * | 1991-07-11 | 1993-01-26 | Mazda Motor Corp | 過給機付デイーゼルエンジンの吸気装置 |
JPH0814111A (ja) * | 1994-06-24 | 1996-01-16 | Isuzu Motors Ltd | インタクーラ付過給ディーゼルエンジンのegr装置 |
JP2003278608A (ja) * | 2002-03-20 | 2003-10-02 | Hino Motors Ltd | Egr装置 |
JP2004060601A (ja) * | 2002-07-31 | 2004-02-26 | Denso Corp | 内燃機関の制御装置 |
-
2004
- 2004-08-23 JP JP2004241988A patent/JP4561236B2/ja not_active Expired - Fee Related
Patent Citations (5)
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JPH0450433A (ja) * | 1990-06-20 | 1992-02-19 | Toyota Motor Corp | 直列2段過給内燃機関の排気ガス再循環装置 |
JPH0518251A (ja) * | 1991-07-11 | 1993-01-26 | Mazda Motor Corp | 過給機付デイーゼルエンジンの吸気装置 |
JPH0814111A (ja) * | 1994-06-24 | 1996-01-16 | Isuzu Motors Ltd | インタクーラ付過給ディーゼルエンジンのegr装置 |
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JP2004060601A (ja) * | 2002-07-31 | 2004-02-26 | Denso Corp | 内燃機関の制御装置 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012102651A (ja) * | 2010-11-09 | 2012-05-31 | Mitsubishi Heavy Ind Ltd | エンジン排気ガス浄化装置 |
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JP2006057570A (ja) | 2006-03-02 |
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