JP2014222047A - 内燃機関の吸気装置 - Google Patents
内燃機関の吸気装置 Download PDFInfo
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- 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
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10006—Air intakes; Induction systems characterised by the position of elements of the air intake system in direction of the air intake flow, i.e. between ambient air inlet and supply to the combustion chamber
- F02M35/10026—Plenum chambers
- F02M35/10045—Multiple plenum chambers; Plenum chambers having inner separation walls
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- 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
- F02B17/00—Engines characterised by means for effecting stratification of charge in cylinders
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- 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
- F02B31/00—Modifying induction systems for imparting a rotation to the charge in the cylinder
- F02B31/04—Modifying induction systems for imparting a rotation to the charge in the cylinder by means within the induction channel, e.g. deflectors
- F02B31/06—Movable means, e.g. butterfly valves
- F02B31/08—Movable means, e.g. butterfly valves having multiple air inlets, i.e. having main and auxiliary intake passages
- F02B31/085—Movable means, e.g. butterfly valves having multiple air inlets, i.e. having main and auxiliary intake passages having two inlet valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
- F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
- F02D13/0223—Variable control of the intake valves only
- F02D13/0226—Variable control of the intake valves only changing valve lift or valve lift and timing
- F02D13/023—Variable control of the intake valves only changing valve lift or valve lift and timing the change of valve timing is caused by the change in valve lift, i.e. both valve lift and timing are functionally related
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
- F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
- F02D13/0257—Independent control of two or more intake or exhaust valves respectively, i.e. one of two intake valves remains closed or is opened partially while the other is fully opened
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D21/00—Controlling engines characterised by their being supplied with non-airborne oxygen or other non-fuel gas
- F02D21/06—Controlling engines characterised by their being supplied with non-airborne oxygen or other non-fuel gas peculiar to engines having other non-fuel gas added to combustion air
- F02D21/08—Controlling engines characterised by their being supplied with non-airborne oxygen or other non-fuel gas peculiar to engines having other non-fuel gas added to combustion air the other gas being the exhaust gas of engine
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D41/0047—Controlling exhaust gas recirculation [EGR]
- F02D41/0065—Specific aspects of external EGR control
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D41/0047—Controlling exhaust gas recirculation [EGR]
- F02D41/0065—Specific aspects of external EGR control
- F02D41/0072—Estimating, calculating or determining the EGR rate, amount or flow
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- 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
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- 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
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- 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
- F02M26/24—Layout, e.g. schematics with two or more coolers
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- 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
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/104—Intake manifolds
- F02M35/108—Intake manifolds with primary and secondary intake passages
- F02M35/1085—Intake manifolds with primary and secondary intake passages the combustion chamber having multiple intake valves
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- 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
- F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
- F02B2275/48—Tumble motion in gas movement in cylinder
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/0002—Controlling intake air
- F02D2041/0015—Controlling intake air for engines with means for controlling swirl or tumble flow, e.g. by using swirl valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/04—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning exhaust conduits
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- 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
- F02M26/09—Constructional details, e.g. structural combinations of EGR systems and supercharger systems; Arrangement of the EGR and supercharger systems with respect to the engine
- F02M26/10—Constructional details, e.g. structural combinations of EGR systems and supercharger systems; Arrangement of the EGR and supercharger systems with respect to the engine having means to increase the pressure difference between the exhaust and intake system, e.g. venturis, variable geometry turbines, check valves using pressure pulsations or throttles in the air intake or exhaust system
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- 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
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/104—Intake manifolds
- F02M35/112—Intake manifolds for engines with cylinders all in one line
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- 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
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- 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
Abstract
Description
前記第2の吸気ポートに接続され、前記EGRガスの濃度が濃厚なEGRリッチガスが流れる第2通路と、
前記第1の吸気ポート及び前記第2の吸気ポートより上流にて前記第1通路と前記第2通路とを接続する接続通路と、
前記第1の吸気ポートから前記筒内に吸入された前記EGRリーンガスと前記第2の吸気ポートから前記筒内に吸入された前記EGRリッチガスとが層状に分布するように前記第2ガスの吸気流量を制御する流量制御手段と、を備え、
前記第1通路を流れる前記EGRリーンガスを前記接続通路から前記第2通路に流入させ、又は前記第2通路を流れる前記EGRリッチガスを前記接続通路から前記第1通路に流入させることで、前記筒内に吸入される前記EGRガスの量を前記筒内に吸入されるガスの総吸入量で割った値であるEGR率の目標値を達成できるようになっており、
前記流量制御手段は、前記接続通路から前記第2通路に流入する前記EGRリーンガスの量又は前記第1通路に流入する前記EGRリッチガスの量が減るように、前記目標値に応じて前記EGRリッチガスの吸気流量を変更することを特徴とする。
以下、本発明に係る内燃機関の吸気装置の第1実施形態を図面を参照しながら説明する。図1は、車両に搭載されたエンジンシステム1の構成図を示している。エンジンシステム1は、内燃機関としてのディーゼルエンジン10(以下、単にエンジンという)と、そのエンジン10の運転に必要な各種構成とを備える形で構成されている。なお、本実施形態では、エンジン10は、4つの気筒11(シリンダ)を有した4気筒エンジンである。エンジン10は、各気筒11において、吸気、圧縮、燃焼、排気の4行程を経て動力を生み出す4ストローク機関である。吸気、圧縮、燃焼、排気の4行程による燃焼サイクル(「720°CA」周期)が、例えば各気筒11間で「180°CA」ずらして逐次実行される。図1の右側の気筒11から順に1番から4番までの番号を付けたときに、例えば、1番、3番、4番、2番の気筒11の順に燃焼サイクルが実行される。
次に、本発明の第2実施形態を上記実施形態と異なる部分を中心に説明する。図15は本実施形態のエンジンシステムの構成図を示している。なお、図15において、図1と変更が無い部分には同一符号を付している。図15のエンジンシステム2は、吸気制御バルブ42とアクチュエータ43とが設けられている点で図1のエンジンシステム1と異なっており、それ以外は図1のエンジンシステム1と同じである。
12 スワール生成ポート
13 タンブル生成ポート
141、142 吸気バルブ
22 EGRリーンガス通路
25 EGRリッチガス通路
29 接続通路
42 吸気制御バルブ
43 アクチュエータ
50 ECU
Claims (4)
- 筒内に繋がる第1の吸気ポート(12)とその第1の吸気ポートとは異なる前記筒内に繋がる第2の吸気ポート(13)とを有した内燃機関(10)の前記第1の吸気ポートに接続され、前記内燃機関の排気系から吸気系に還流される排気ガスであるEGRガスの濃度が希薄なEGRリーンガスが流れる第1通路(21、22)と、
前記第2の吸気ポートに接続され、前記EGRガスの濃度が濃厚なEGRリッチガスが流れる第2通路(24、25)と、
前記第1の吸気ポート及び前記第2の吸気ポートより上流にて前記第1通路と前記第2通路とを接続する接続通路(29)と、
前記第1の吸気ポートから前記筒内に吸入された前記EGRリーンガスと前記第2の吸気ポートから前記筒内に吸入された前記EGRリッチガスとが層状に分布するように前記第2ガスの吸気流量を制御する流量制御手段(50、142、42、43)と、を備え、
前記第1通路を流れる前記EGRリーンガスを前記接続通路から前記第2通路に流入させ、又は前記第2通路を流れる前記EGRリッチガスを前記接続通路から前記第1通路に流入させることで、前記筒内に吸入される前記EGRガスの量を前記筒内に吸入されるガスの総吸入量で割った値であるEGR率の目標値を達成できるようになっており、
前記流量制御手段は、前記接続通路から前記第2通路に流入する前記EGRリーンガスの量又は前記第1通路に流入する前記EGRリッチガスの量が減るように、前記目標値に応じて前記EGRリッチガスの吸気流量を変更することを特徴とする内燃機関の吸気装置。 - 前記流量制御手段は、前記目標値の増加により前記第2ガスの吸気流量を増やし、前記目標値の減少により前記第2ガスの吸気流量を減らすことを特徴とする請求項1に記載の内燃機関の吸気装置。
- 前記流量制御手段は、前記EGRリーンガスの吸入開始に遅れて前記EGRリッチガスの吸入が開始するように、前記第2ガスの吸気流量を制御することを特徴とする請求項1又は2に記載の内燃機関の吸気装置。
- 前記第1の吸気ポートは前記筒内に吸気するガスにスワール流を生じさせるスワール生成ポートであり、
前記第2の吸気ポートは前記筒内に吸気するガスにタンブル流を生じさせるタンブル生成ポートであることを特徴とする請求項1〜3のいずれか1項に記載の内燃機関の吸気装置。
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JP2013102075A JP6001497B2 (ja) | 2013-05-14 | 2013-05-14 | 内燃機関の吸気装置 |
DE102014106153.5A DE102014106153B4 (de) | 2013-05-14 | 2014-05-02 | Ansaugsystem einer Verbrennungskraftmaschine |
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CN108204299A (zh) * | 2016-12-16 | 2018-06-26 | 福特环球技术公司 | 用于分流式排气发动机系统的系统和方法 |
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CN106321289A (zh) * | 2016-10-13 | 2017-01-11 | 广西玉柴机器股份有限公司 | 单点喷射的燃气发动机分层燃烧系统 |
CN106438114A (zh) * | 2016-10-13 | 2017-02-22 | 广西玉柴机器股份有限公司 | 多点气道喷射的燃气发动机分层燃烧系统 |
DE102022116606A1 (de) * | 2022-07-04 | 2024-01-04 | Schaeffler Technologies AG & Co. KG | Viertakt-Verbrennungskraftmaschine mit zweigeteiltem Einlasskanal und zugehöri-ges Betriebsverfahren |
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JPH11303687A (ja) | 1998-04-21 | 1999-11-02 | Hino Motors Ltd | 過給エンジンのegr装置 |
DE102004024568A1 (de) | 2004-05-18 | 2005-12-15 | Robert Bosch Gmbh | Verfahren zum Betreiben einer Brennkraftmaschine |
JP5278399B2 (ja) | 2010-10-14 | 2013-09-04 | 株式会社デンソー | 内燃機関の吸気制御装置 |
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JPH07224726A (ja) * | 1994-02-14 | 1995-08-22 | Mazda Motor Corp | 過給機付エンジンの排気還流装置 |
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JP2006266159A (ja) * | 2005-03-23 | 2006-10-05 | Toyota Motor Corp | エンジンの排気還流ガス導入制御装置 |
WO2011125208A1 (ja) * | 2010-04-08 | 2011-10-13 | トヨタ自動車株式会社 | 内燃機関の燃焼制御装置 |
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CN108204299A (zh) * | 2016-12-16 | 2018-06-26 | 福特环球技术公司 | 用于分流式排气发动机系统的系统和方法 |
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