JP2017008752A - ガスエンジン - Google Patents
ガスエンジン Download PDFInfo
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- JP2017008752A JP2017008752A JP2015122858A JP2015122858A JP2017008752A JP 2017008752 A JP2017008752 A JP 2017008752A JP 2015122858 A JP2015122858 A JP 2015122858A JP 2015122858 A JP2015122858 A JP 2015122858A JP 2017008752 A JP2017008752 A JP 2017008752A
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- 238000002347 injection Methods 0.000 claims abstract description 190
- 239000007924 injection Substances 0.000 claims abstract description 190
- 239000000446 fuel Substances 0.000 claims abstract description 112
- 238000002485 combustion reaction Methods 0.000 claims abstract description 98
- 230000006835 compression Effects 0.000 claims description 11
- 238000007906 compression Methods 0.000 claims description 11
- 230000002159 abnormal effect Effects 0.000 abstract description 24
- 238000009841 combustion method Methods 0.000 abstract description 3
- 238000010304 firing Methods 0.000 abstract 2
- 239000000243 solution Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 109
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 66
- 239000002737 fuel gas Substances 0.000 description 24
- 238000000034 method Methods 0.000 description 14
- 239000000203 mixture Substances 0.000 description 4
- 230000035484 reaction time Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000002028 premature Effects 0.000 description 2
- PCTMTFRHKVHKIS-BMFZQQSSSA-N (1s,3r,4e,6e,8e,10e,12e,14e,16e,18s,19r,20r,21s,25r,27r,30r,31r,33s,35r,37s,38r)-3-[(2r,3s,4s,5s,6r)-4-amino-3,5-dihydroxy-6-methyloxan-2-yl]oxy-19,25,27,30,31,33,35,37-octahydroxy-18,20,21-trimethyl-23-oxo-22,39-dioxabicyclo[33.3.1]nonatriaconta-4,6,8,10 Chemical compound C1C=C2C[C@@H](OS(O)(=O)=O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@H]([C@H](C)CCCC(C)C)[C@@]1(C)CC2.O[C@H]1[C@@H](N)[C@H](O)[C@@H](C)O[C@H]1O[C@H]1/C=C/C=C/C=C/C=C/C=C/C=C/C=C/[C@H](C)[C@@H](O)[C@@H](C)[C@H](C)OC(=O)C[C@H](O)C[C@H](O)CC[C@@H](O)[C@H](O)C[C@H](O)C[C@](O)(C[C@H](O)[C@H]2C(O)=O)O[C@H]2C1 PCTMTFRHKVHKIS-BMFZQQSSSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Images
Classifications
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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
- F02D41/30—Controlling fuel injection
- F02D41/3094—Controlling fuel injection the fuel injection being effected by at least two different injectors, e.g. one in the intake manifold and one in the cylinder
-
- 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
- F02B7/00—Engines characterised by the fuel-air charge being ignited by compression ignition of an additional fuel
- F02B7/06—Engines characterised by the fuel-air charge being ignited by compression ignition of an additional fuel the fuel in the charge being gaseous
- F02B7/08—Methods of operating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/08—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels
- F02D19/082—Premixed fuels, i.e. emulsions or blends
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/08—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels
- F02D19/10—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels peculiar to compression-ignition engines in which the main fuel is gaseous
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
- F02D35/02—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
- F02D35/023—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions by determining the cylinder pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
- F02D35/02—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
- F02D35/025—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions by determining temperatures inside the cylinder, e.g. combustion temperatures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
- F02D35/02—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
- F02D35/027—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions using knock sensors
-
- 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
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/14—Introducing closed-loop corrections
- F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
- F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
- F02D41/146—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an NOx content or concentration
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/10—Parameters related to the engine output, e.g. engine torque or engine speed
- F02D2200/1015—Engines misfires
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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
-
- 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
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Combustion Methods Of Internal-Combustion Engines (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
Description
図1は、4ストロークの多気筒エンジンのうちの1つのシリンダ10を示すものである。シリンダ10は、ライナ12とヘッド14とより構成されており、ライナ12内をピストン16が往復する構成が採られている。ヘッド14には、吸気口18と排気口20の他、パイロット燃料噴射弁22や、ノックセンサ36が設けられている。吸気口18と排気口20にはそれぞれ、吸気弁18aと排気弁20aが配設されている。また、吸気口18と排気口20にはそれぞれ、吸気管24と、排気管30が接続されている。吸気管24には、燃料ガス供給弁28及び燃料ガス供給管26を介して燃料ガス室54から燃料ガス(例えば都市ガス)が供給され、吸気管24内で燃料ガスと給気(空気)の混合気が形成される。吸気管24に供給される燃料ガス流量は、燃料ガス室54内の圧力が燃料ガス圧力調節弁52により調節された後、エンジン出力に応じて燃料ガス供給弁28により制御され、給気流量は、必要とされる空気過剰率に応じて、過給機から給気室56に供給される給気の圧力を給気圧力調節弁62により制御されて、混合気中の燃料ガス濃度が所定の濃度に保つことが可能な構成とされている。
上記のような特徴を有するガスエンジンにおいて前記制御手段は、前記プレ噴射の回数、タイミング、及び量の少なくともいずれか1つを変える事により、前記シリンダ内における前記パイロット燃料の分布範囲を変えることを可能とすると良い。
上記のような特徴を有するガスエンジンにおいて前記制御手段は、前記プレ噴射の回数、タイミング、及び量の少なくともいずれか1つを変える事により、前記メイン噴射により着火された予混合ガスの燃焼圧力を変えることができる。
上記のような特徴を有するガスエンジンにおいて前記制御手段は、異常燃焼が発生した場合に、前記プレ噴射を行うタイミングを早める構成とすることができる。このような特徴を有することにより、過早着火を回避し、異常燃焼を抑制することができる。
上記のような特徴を有するガスエンジンにおいて前記制御手段は、異常燃焼が発生した場合に、前記プレ噴射の量を少なくする構成とすることもできる。このような特徴を有する場合も、過早着火を回避し、異常燃焼を抑制することができる。
Claims (4)
- 空気を加圧しシリンダに供給する過給機及び当該過給機により加圧される空気の圧力を負荷に応じて制御する機構を備えると共に、シリンダヘッドにパイロット燃料噴射弁を備え、予混合ガスを前記パイロット燃料噴射弁を介して前記シリンダ内にパイロット燃料として噴射することで着火燃焼を図るガスエンジンであって、
前記パイロット燃料の噴射をプレ噴射とメイン噴射とに分け、
予め求められた予混合ガスが未燃となるクランクアングル及び噴射量の範囲で、前記プレ噴射を行い、さらに前記ピストンにより予混合ガスが圧縮された後、前記予混合ガスが燃焼に至るクランクアングル及び噴射量の範囲で、前記メイン噴射を行うように、前記パイロット燃料噴射弁の制御を行う制御手段を備えたことを特徴とするガスエンジン。 - 前記制御手段による前記プレ噴射のタイミング、及び量は、前記シリンダ内の圧縮温度が燃焼に至るクランクアングルに達した際に、噴射されたパイロット燃料が拡散し、運動量が失われている状態となるクランクアングル及び噴射量としたことを特徴とする請求項1に記載のガスエンジン。
- 4ストロークガスエンジンの場合における前記プレ噴射は、吸気弁が閉弁した後に行われることを特徴とする請求項2に記載のガスエンジン。
- 2ストロークガスエンジンの場合における前記プレ噴射は、前記シリンダ内を摺動するピストンが、吸気ポートを塞いだ後又は排気弁が閉弁した後に行われることを特徴とする請求項2に記載のガスエンジン。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015122858A JP5922830B1 (ja) | 2015-06-18 | 2015-06-18 | ガスエンジン |
CN201610426095.2A CN106257027A (zh) | 2015-06-18 | 2016-06-16 | 燃气发动机 |
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JP2015122858A JP5922830B1 (ja) | 2015-06-18 | 2015-06-18 | ガスエンジン |
Publications (2)
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JP5922830B1 JP5922830B1 (ja) | 2016-05-24 |
JP2017008752A true JP2017008752A (ja) | 2017-01-12 |
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JP2015122858A Active JP5922830B1 (ja) | 2015-06-18 | 2015-06-18 | ガスエンジン |
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JP (1) | JP5922830B1 (ja) |
CN (1) | CN106257027A (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20190053956A (ko) * | 2016-11-17 | 2019-05-20 | 바르실라 핀랜드 오이 | 가스 모드에서 피스톤 엔진을 작동시키기 위한 방법 및 피스톤 엔진 |
EP3543513A1 (de) * | 2018-03-22 | 2019-09-25 | MAN Energy Solutions SE | Verfahren und steuerungseinrichtung zum betreiben eines motors |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6657040B2 (ja) * | 2016-07-14 | 2020-03-04 | ヤンマー株式会社 | エンジン |
JP6679435B2 (ja) * | 2016-07-14 | 2020-04-15 | ヤンマー株式会社 | エンジン |
JP7376995B2 (ja) * | 2019-03-04 | 2023-11-09 | 川崎重工業株式会社 | ターボ過給機付きガスエンジン及びその燃焼方法 |
CN114718722B (zh) * | 2022-02-24 | 2023-03-21 | 潍柴动力股份有限公司 | 预燃室进气用阀门故障检测方法、检测系统及发动机 |
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JPH09158810A (ja) * | 1995-10-02 | 1997-06-17 | Hino Motors Ltd | ディーゼルエンジン |
JP2005090381A (ja) * | 2003-09-18 | 2005-04-07 | Niigata Power Systems Co Ltd | パイロット油着火ガスエンジン |
JP2005163686A (ja) * | 2003-12-04 | 2005-06-23 | Toyota Motor Corp | 混合気を圧縮自着火させる自着火運転が可能な内燃機関 |
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JP2007247569A (ja) * | 2006-03-16 | 2007-09-27 | Mitsui Eng & Shipbuild Co Ltd | ガスエンジンのノッキング制御装置 |
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- 2015-06-18 JP JP2015122858A patent/JP5922830B1/ja active Active
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- 2016-06-16 CN CN201610426095.2A patent/CN106257027A/zh active Pending
Patent Citations (6)
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JPH06341343A (ja) * | 1993-05-31 | 1994-12-13 | Yanmar Diesel Engine Co Ltd | ディーゼル機関 |
JPH09158810A (ja) * | 1995-10-02 | 1997-06-17 | Hino Motors Ltd | ディーゼルエンジン |
JP2005522626A (ja) * | 2002-04-09 | 2005-07-28 | ウエストポート リサーチ インコーポレイテッド | 内燃機関内への燃料噴射の方法及び装置 |
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JP2005163686A (ja) * | 2003-12-04 | 2005-06-23 | Toyota Motor Corp | 混合気を圧縮自着火させる自着火運転が可能な内燃機関 |
JP2007247569A (ja) * | 2006-03-16 | 2007-09-27 | Mitsui Eng & Shipbuild Co Ltd | ガスエンジンのノッキング制御装置 |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20190053956A (ko) * | 2016-11-17 | 2019-05-20 | 바르실라 핀랜드 오이 | 가스 모드에서 피스톤 엔진을 작동시키기 위한 방법 및 피스톤 엔진 |
KR101990766B1 (ko) | 2016-11-17 | 2019-06-18 | 바르실라 핀랜드 오이 | 가스 모드에서 피스톤 엔진을 작동시키기 위한 방법 및 피스톤 엔진 |
EP3543513A1 (de) * | 2018-03-22 | 2019-09-25 | MAN Energy Solutions SE | Verfahren und steuerungseinrichtung zum betreiben eines motors |
CN110296004A (zh) * | 2018-03-22 | 2019-10-01 | 曼恩能源方案有限公司 | 用于操作发动机的方法和控制装置 |
JP2019167958A (ja) * | 2018-03-22 | 2019-10-03 | マン・エナジー・ソリューションズ・エスイー | エンジンを運転するための方法及び制御装置 |
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CN106257027A (zh) | 2016-12-28 |
JP5922830B1 (ja) | 2016-05-24 |
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