JP2008133759A - 副室式内燃機関 - Google Patents
副室式内燃機関 Download PDFInfo
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- JP2008133759A JP2008133759A JP2006319625A JP2006319625A JP2008133759A JP 2008133759 A JP2008133759 A JP 2008133759A JP 2006319625 A JP2006319625 A JP 2006319625A JP 2006319625 A JP2006319625 A JP 2006319625A JP 2008133759 A JP2008133759 A JP 2008133759A
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- combustion engine
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 66
- 239000000446 fuel Substances 0.000 claims abstract description 275
- 238000002347 injection Methods 0.000 claims abstract description 149
- 239000007924 injection Substances 0.000 claims abstract description 149
- 239000000203 mixture Substances 0.000 claims abstract description 60
- 230000006835 compression Effects 0.000 claims abstract description 12
- 238000007906 compression Methods 0.000 claims abstract description 12
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 238000005192 partition Methods 0.000 claims description 2
- 210000000056 organ Anatomy 0.000 claims 2
- 238000002407 reforming Methods 0.000 claims 1
- 230000003111 delayed effect Effects 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 abstract 1
- 239000000243 solution Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 14
- 230000015572 biosynthetic process Effects 0.000 description 7
- 238000009792 diffusion process Methods 0.000 description 3
- 239000002828 fuel tank Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000013517 stratification Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 150000001491 aromatic compounds Chemical class 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000006356 dehydrogenation reaction Methods 0.000 description 1
- 235000012489 doughnuts Nutrition 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 238000005728 strengthening 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
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
- F02B23/08—Other engines characterised by special shape or construction of combustion chambers to improve operation with positive ignition
- F02B23/10—Other engines characterised by special shape or construction of combustion chambers to improve operation with positive ignition with separate admission of air and fuel into cylinder
- F02B23/101—Other engines characterised by special shape or construction of combustion chambers to improve operation with positive ignition with separate admission of air and fuel into cylinder the injector being placed on or close to the cylinder centre axis, e.g. with mixture formation using spray guided concepts
-
- 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
- F02B17/005—Engines characterised by means for effecting stratification of charge in cylinders having direct injection in the combustion chamber
-
- 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
- F02B19/00—Engines characterised by precombustion chambers
- F02B19/10—Engines characterised by precombustion chambers with fuel introduced partly into pre-combustion chamber, and partly into cylinder
- F02B19/1019—Engines characterised by precombustion chambers with fuel introduced partly into pre-combustion chamber, and partly into cylinder with only one pre-combustion chamber
- F02B19/108—Engines characterised by precombustion chambers with fuel introduced partly into pre-combustion chamber, and partly into cylinder with only one pre-combustion chamber with fuel injection at least into pre-combustion chamber, i.e. injector mounted directly in the pre-combustion chamber
-
- 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
- F02B19/00—Engines characterised by precombustion chambers
- F02B19/12—Engines characterised by precombustion chambers with positive ignition
-
- 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
- F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
- F02B23/08—Other engines characterised by special shape or construction of combustion chambers to improve operation with positive ignition
- F02B23/10—Other engines characterised by special shape or construction of combustion chambers to improve operation with positive ignition with separate admission of air and fuel into cylinder
- F02B2023/106—Tumble flow, i.e. the axis of rotation of the main charge flow motion is horizontal
-
- 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
- F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
- F02B23/08—Other engines characterised by special shape or construction of combustion chambers to improve operation with positive ignition
- F02B23/10—Other engines characterised by special shape or construction of combustion chambers to improve operation with positive ignition with separate admission of air and fuel into cylinder
- F02B2023/108—Swirl flow, i.e. the axis of rotation of the main charge flow motion is vertical
-
- 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
- F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
- F02B23/08—Other engines characterised by special shape or construction of combustion chambers to improve operation with positive ignition
- F02B23/10—Other engines characterised by special shape or construction of combustion chambers to improve operation with positive ignition with separate admission of air and fuel into cylinder
- F02B23/104—Other engines characterised by special shape or construction of combustion chambers to improve operation with positive ignition with separate admission of air and fuel into cylinder the injector being placed on a side position of 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
- F02B31/00—Modifying induction systems for imparting a rotation to the charge in the cylinder
- F02B31/08—Modifying induction systems for imparting a rotation to the charge in the cylinder having multiple air inlets
- F02B31/085—Modifying induction systems for imparting a rotation to the charge in the cylinder having multiple air inlets having two inlet valves
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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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combustion Methods Of Internal-Combustion Engines (AREA)
- Electrical Control Of Ignition Timing (AREA)
- Fuel-Injection Apparatus (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
Abstract
【解決手段】 圧縮行程にて、筒内直噴用燃料噴射弁12からピストン4の冠面のキャビティ11に向けて燃料を噴射し、キャビティ11内(副室20から離れた位置)に混合気を成層化する。これよりやや遅れて、副室用燃料噴射弁22から副室20内に燃料を噴射し、副室20内の燃料に点火プラグ23により点火する。そして、副室20内の燃料への点火により生じたトーチ火炎を噴孔21から主室5内に噴出させ、キャビティ11に成層化されている混合気に達しさせて、該混合気を燃焼させる。
【選択図】 図1
Description
2 シリンダヘッド
3 シリンダブロック
4 ピストン
5 主室
6 吸気弁
7 排気弁
8 吸気ポート
9 排気ポート
10 燃料ポンプ
11 キャビティ
12 筒内直噴用燃料噴射弁
13 ポート噴射用燃料噴射弁
20 副室
21 噴孔
22 副室用燃料噴射弁
23 点火プラグ
31 スワール制御弁
32 タンブル制御弁
40 エンジンコントロールユニット(ECU)
Claims (22)
- 主たる燃焼室である主室と、該主室に隣接して設けられ該主室に比して容積が小さい副室と、前記主室と前記副室との隔壁に設けられてこれらを連通する噴孔と、前記主室及び前記副室に燃料を供給する燃料供給手段と、前記副室内の燃料に点火可能な点火手段と、を有する副室式内燃機関において、
前記主室に供給された燃料による混合気を点火時期近傍で前記副室から離れた位置に形成すると共に、点火時期にて前記点火手段により前記副室内の燃料に点火して、トーチ火炎を前記噴孔から前記主室内の混合気中へ噴出させ、前記主室内の混合気を燃焼させることを特徴とする副室式内燃機関。 - 前記燃料供給手段は、前記主室に燃料を供給する第1の燃料噴射弁と、前記副室に燃料を供給する第2の燃料噴射弁とを各別に有していることを特徴とする請求項1記載の副室式内燃機関。
- 前記第1の燃料噴射弁は、前記主室の上面中央部に配置されて、ピストン冠面を指向し、圧縮行程にて燃料を噴射することを特徴とする請求項2記載の副室式内燃機関。
- 前記第1の燃料噴射弁は、前記主室の側部に配置されて、ピストン冠面を指向し、圧縮行程にて燃料を噴射することを特徴とする請求項2記載の副室式内燃機関。
- 前記第1の燃料噴射弁は、1気筒につき2本ずつ設けられている吸気ポートの一方に配置され、噴射燃料を吸気行程にて燃焼室内に流入させることを特徴とする請求項2記載の副室式内燃機関。
- 前記第2の燃料噴射弁は、前記副室に直接臨んで設けられることを特徴とする請求項2〜請求項5のいずれか1つに記載の副室式内燃機関。
- 前記第2の燃料噴射弁は、前記第1の燃料噴射弁が供給する燃料と比して、燃焼速度の速い燃料を供給するものであることを特徴とする請求項2〜請求項6のいずれか1つに記載の副室式内燃機関。
- 前記第2の燃料噴射弁が供給する燃料は、前記第1の燃料噴射弁が供給する燃料を改質した燃料であることを特徴とする請求項7記載の副室式内燃機関。
- 前記燃料供給手段は、前記主室に設けられた燃料噴射弁であり、該燃料噴射弁により前記主室内のピストン冠面へ向けて燃料を噴射する一方、一部の燃料を前記副室へ向けて噴射するよう噴孔を配置して構成したことを特徴とする請求項1記載の副室式内燃機関。
- ピストンの冠面にキャビティを有し、該キャビティにより前記主室に供給された燃料による混合気を成層化することを特徴とする請求項1〜請求項9のいずれか1つに記載の副室式内燃機関。
- ピストンの冠面上で、前記第1の燃料噴射弁の配置側に偏った位置に、キャビティを有し、該キャビティにより前記主室に供給された燃料による混合気を成層化することを特徴とする請求項4記載の副室式内燃機関。
- 前記主室内に吸気流動を生成する吸気流動生成手段を有し、吸気流動によって前記キャビティに混合気を成層化することを特徴とする請求項10又は請求項11記載の副室式内燃機関。
- 前記吸気流動生成手段は、吸気流動として、スワール流動を生成するスワール流動生成手段であることを特徴とする請求項12記載の副室式内燃機関。
- ピストン冠面のキャビティは、その周壁面の上側がシリンダ中心側に向かって傾斜していることを特徴とする請求項13記載の副室式内燃機関。
- ピストン冠面のキャビティは、その周壁面がシリンダ中心線と平行に構成されていることを特徴とする請求項13記載の副室式内燃機関。
- 前記吸気流動生成手段は、吸気流動として、タンブル流動を生成するタンブル流動生成手段であることを特徴とする請求項12記載の副室式内燃機関。
- ピストン冠面のキャビティは、ピストン冠面において、吸気弁と排気弁とを結ぶ線の方向に長く形成されることを特徴とする請求項16記載の副室式内燃機関。
- 前記副室は、前記主室の上方に配置されることを特徴とする請求項1〜請求項17のいずれか1つに記載の副室式内燃機関。
- 前記副室は、前記主室の側方に配置されることを特徴とする請求項1〜請求項17のいずれか1つに記載の副室式内燃機関。
- 前記副室は、前記主室の側部に、タンブル流の流動面に対し、前記副室からのトーチ火炎が交差するように配置することを特徴とする請求項16又は請求項17記載の副室式内燃機関。
- 前記燃料供給手段は、機関負荷が大きくなるほど、前記副室に供給する燃料の量を少なくすることを特徴とする請求項1〜請求項20のいずれか1つに記載の副室式内燃機関。
- 前記燃料供給手段は、機関負荷が大きくなるほど、前記主室に供給する燃料の噴射時期を進角させることを特徴とする請求項1〜請求項21のいずれか1つに記載の副室式内燃機関。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006319625A JP4380691B2 (ja) | 2006-11-28 | 2006-11-28 | 副室式内燃機関 |
US11/987,130 US7814883B2 (en) | 2006-11-28 | 2007-11-27 | Internal combustion engine with auxiliary combustion chamber |
EP07121651A EP1927738A3 (en) | 2006-11-28 | 2007-11-27 | Internal combustion engine with auxiliary combustion chamber |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006319625A JP4380691B2 (ja) | 2006-11-28 | 2006-11-28 | 副室式内燃機関 |
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JP2008133759A true JP2008133759A (ja) | 2008-06-12 |
JP4380691B2 JP4380691B2 (ja) | 2009-12-09 |
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Family Applications (1)
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JP2006319625A Active JP4380691B2 (ja) | 2006-11-28 | 2006-11-28 | 副室式内燃機関 |
Country Status (3)
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---|---|
US (1) | US7814883B2 (ja) |
EP (1) | EP1927738A3 (ja) |
JP (1) | JP4380691B2 (ja) |
Cited By (3)
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JP2019120131A (ja) * | 2017-12-28 | 2019-07-22 | トヨタ自動車株式会社 | 内燃機関の制御装置 |
CN114072573A (zh) * | 2019-03-27 | 2022-02-18 | 三菱自动车工业株式会社 | 副室式内燃机 |
US20230034824A1 (en) * | 2021-07-28 | 2023-02-02 | Ford Global Technologies, Llc | Methods and systems for engine cold-start |
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JP2004011517A (ja) | 2002-06-06 | 2004-01-15 | Honda Motor Co Ltd | 動力装置 |
JP4532334B2 (ja) | 2005-05-12 | 2010-08-25 | 日本電信電話株式会社 | 光空間通信システムの相対位置姿勢推定装置 |
-
2006
- 2006-11-28 JP JP2006319625A patent/JP4380691B2/ja active Active
-
2007
- 2007-11-27 EP EP07121651A patent/EP1927738A3/en not_active Withdrawn
- 2007-11-27 US US11/987,130 patent/US7814883B2/en not_active Expired - Fee Related
Cited By (5)
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JP2019120131A (ja) * | 2017-12-28 | 2019-07-22 | トヨタ自動車株式会社 | 内燃機関の制御装置 |
CN114072573A (zh) * | 2019-03-27 | 2022-02-18 | 三菱自动车工业株式会社 | 副室式内燃机 |
CN114072573B (zh) * | 2019-03-27 | 2024-02-27 | 三菱自动车工业株式会社 | 副室式内燃机 |
US20230034824A1 (en) * | 2021-07-28 | 2023-02-02 | Ford Global Technologies, Llc | Methods and systems for engine cold-start |
US11674464B2 (en) * | 2021-07-28 | 2023-06-13 | Ford Global Technologies, Llc | Methods and systems for engine cold-start |
Also Published As
Publication number | Publication date |
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US20080196690A1 (en) | 2008-08-21 |
US7814883B2 (en) | 2010-10-19 |
EP1927738A2 (en) | 2008-06-04 |
EP1927738A3 (en) | 2011-01-26 |
JP4380691B2 (ja) | 2009-12-09 |
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