JP2022547398A - 内燃機関用燃料噴射装置 - Google Patents
内燃機関用燃料噴射装置 Download PDFInfo
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- JP2022547398A JP2022547398A JP2022507653A JP2022507653A JP2022547398A JP 2022547398 A JP2022547398 A JP 2022547398A JP 2022507653 A JP2022507653 A JP 2022507653A JP 2022507653 A JP2022507653 A JP 2022507653A JP 2022547398 A JP2022547398 A JP 2022547398A
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 149
- 239000000446 fuel Substances 0.000 title claims abstract description 72
- 238000002347 injection Methods 0.000 claims abstract description 59
- 239000007924 injection Substances 0.000 claims abstract description 59
- 230000000694 effects Effects 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims description 6
- 238000004781 supercooling Methods 0.000 abstract description 9
- 239000000203 mixture Substances 0.000 description 19
- 239000007789 gas Substances 0.000 description 9
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 229910010293 ceramic material Inorganic materials 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000002028 premature Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- F02B19/00—Engines characterised by precombustion chambers
- F02B19/08—Engines characterised by precombustion chambers the chamber being of air-swirl type
-
- 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
- F02B19/1004—Engines characterised by precombustion chambers with fuel introduced partly into pre-combustion chamber, and partly into cylinder details of combustion chamber, e.g. mounting arrangements
- F02B19/1014—Engines characterised by precombustion chambers with fuel introduced partly into pre-combustion chamber, and partly into cylinder details of combustion chamber, e.g. mounting arrangements design parameters, e.g. volume, torch passage cross sectional area, length, orientation, or the like
-
- 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
- F02B19/10—Engines characterised by precombustion chambers with fuel introduced partly into pre-combustion chamber, and partly into cylinder
- F02B19/1095—Engines characterised by precombustion chambers with fuel introduced partly into pre-combustion chamber, and partly into cylinder with more than one pre-combustion chamber (a stepped form of the main combustion chamber above the piston is to be considered as a pre-combustion chamber if this stepped portion is not a squish area)
-
- 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
-
- 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
-
- 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 Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Supercharger (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
Description
予燃室噴射または渦流室噴射も知られている。この方法では、予燃室内に燃料噴射が行われ、この予燃室の大きさは、主燃焼室の35~40%に相当し、この予燃室内で、空気と燃料との混合気の燃焼も始まる。膨張により、残った燃料が主燃焼室内に押し込まれ、ここでも主燃焼が行われる。この内燃機関の性能には、燃料の噴射だけでなく、(とりわけ)吸気路内の吸い込み空気の温度も重要である。この温度が低ければ、内燃機関の効率は高くなる。
本発明によれば、内燃機関は、気筒ヘッド内に、1気筒毎に渦流室または予燃室を2つ(またはそれ以上)も装備している。各渦流室の大きさは、主燃焼室の7%ほどの大きさである。渦流室の体積は、主燃焼室の容積の7%に比べてより大きくまたはより小さくてもよい(例えば、10%または約4%)。1気筒毎に2つの渦流室があるため、例えば部分負荷時では燃料噴射は1つの渦流室内にのみ行われる。この方法では、1気筒毎に1つの渦流室(その大きさは主燃焼室の12%~15%に相当)のみを備えた内燃機関と比較して、1気筒毎に50%少ない量の燃料を確実に点火することができる。内燃機関の全負荷時には、双方の渦流室内に燃料が噴射される。各渦流室は、主燃焼室と発射路で結合されている。
本発明によれば、内燃機関の主燃焼室11には、燃料8の噴射用の渦流室13または予燃室が装備されているが、この大きさは、主燃焼室11の大きさの12%~15%に相当する。渦流室(予燃室)13の体積は、主燃焼室11の大きさの15%を上回る(16%以上)でありうる。渦流室13には、ガソリン噴射用に噴射ノズル14と点火プラグ15とが装備されている。発射路16が、渦流室13と主燃焼室11とを結合し、この発射路により、渦流室13内で開始された燃焼が主燃焼室11内に伝搬する。
渦流室13内の噴射ノズル14によって、主燃焼室11内に燃料8が噴射されず、渦流室13(予燃室)内にのみ燃料が噴射される。内燃機関の全負荷時には、噴射ノズル14が渦流室13内でリッチな混合気(1:8)を作る。このリッチな混合気(燃料8+空気3)は、部分負荷時には理論混合気(1:14.7)になるまで順次リーンにすることができる。このように渦流室13内で混合気を順次リーンにする(1:8から1:14.7まで)またはリッチ(1:14.7から1:8まで)にすることで、内燃機関は、部分負荷時に、全負荷時とほぼ同じ量の給気3を主燃焼室11で利用することができ、その結果、部分負荷時にも主燃焼室11内で高い圧力で動作することができる。渦流室13(その大きさは主燃焼室11の大きさの12~15%に相当する)内では、噴射ノズル14を通る燃料8の燃焼が、70%少ない燃料8で行われるので、内燃機関の出力は、吸気路噴射9と給気3の過冷却とを行う類似の様式のエンジン(図2)と比較して、67%小さくなるが、エンジン出力は、給気3を過冷却しない類似の様式のエンジン(図1)と同程度である。燃料8は渦流室13内にのみ噴射されるので、吸気路噴射9の場合(図2)と比較して、燃料消費量は60%から70%まで少なくなり、主燃焼室11の温度負荷は40%までより小さくなる。
・(図1または図2の従来技術と比較して)70%までの燃料節約を達成できる。
・エンジン構造にかかる負荷が67%減少し(図2と比較)、これにより、セラミック材料製の内燃機関の部品が必須ではなくなるので、コスト削減につながる。
・排気ガス(CO2)の排出量を70%削減できる(図2との比較)。
・環境上の理由による排ガス後処理は、必須ではなくなる(図1と比較)。
Claims (5)
- 4ストローク方式で動作する内燃機関であって、
前記内燃機関の全負荷時に、2.8バールまでの過圧で、給気(3)を給気導管(5)内に供給するように構築された過給機(2)と、
十分な量の前記給気(3)を主燃焼室(11)内に供給すると同時に、前記給気導管(5)内の前記給気(3)の過圧を絞り、これによって減圧と同時にベンチュリ効果によって吸気路(10)内の前記給気(3)の温度低下を達成する動作方法のスロットルバルブ(6)と、を備え、
前記内燃機関が、気筒ヘッド内での燃料噴射のために、主燃焼室(11)毎に渦流室(13)または予燃室(13)を有し、
燃料(8)の前記噴射が、該渦流室(13)または予燃室(13)内にのみ行われる内燃機関において、
主燃焼室(11)毎の前記渦流室(13)または前記予燃室(13)の大きさは、前記主燃焼室(11)の大きさの、少なくとも5%、特に12%~15%に相当することを特徴とする、内燃機関。 - 気筒ヘッドは、燃料(8)の前記噴射のために、主燃焼室(11)毎に2つの同一の渦流室(17,17’)または予燃室を装備していて、それらの大きさは合わせて、前記主燃焼室(11)の大きさの少なくとも8%、特に14%~20%に相当することを特徴とする、請求項1に記載の内燃機関。
- 前記渦流室(13)または予燃室(13)の体積が、前記主燃焼室(11)の大きさの15%よりも大きいことを特徴とする、請求項1に記載の内燃機関。
- 前記渦流室(17および17’)の体積は合わせて、前記主燃焼室(11)の大きさの20%より大きいことを特徴とする、請求項2に記載の内燃機関。
- 部分負荷時の燃料(8)の前記噴射は、主燃焼室(11)毎に1つの渦流室(17)もしくは(17’)または予燃室内にのみ行われることを特徴とする、請求項2に記載の内燃機関。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202019105016.0U DE202019105016U1 (de) | 2019-09-11 | 2019-09-11 | Vorrichtung zur Kraftstoffeinspritzung für Verbrennungsmotoren |
DE202019105016.0 | 2019-09-11 | ||
PCT/EP2020/000140 WO2021047790A1 (de) | 2019-09-11 | 2020-08-03 | Vorrichtung zur kraftstoffeinspritzung für verbrennungsmotoren |
Publications (2)
Publication Number | Publication Date |
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JP2022547398A true JP2022547398A (ja) | 2022-11-14 |
JPWO2021047790A5 JPWO2021047790A5 (ja) | 2023-08-03 |
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Application Number | Title | Priority Date | Filing Date |
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JP2022507653A Pending JP2022547398A (ja) | 2019-09-11 | 2020-08-03 | 内燃機関用燃料噴射装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US20220112834A1 (ja) |
EP (1) | EP4028655A1 (ja) |
JP (1) | JP2022547398A (ja) |
CN (1) | CN114391061A (ja) |
DE (2) | DE202019105016U1 (ja) |
WO (1) | WO2021047790A1 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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EP4090840A1 (en) | 2020-01-15 | 2022-11-23 | Radical Combustion Technologies, LLC | Systems, apparatus, and methods for inducing enhanced radical ignition in internal combustion engines using a radical chemicals generator |
Family Cites Families (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH208611A (de) * | 1937-09-24 | 1940-02-15 | Michel Weber Emile | Moteur à combustion. |
JPS548241Y2 (ja) * | 1973-08-09 | 1979-04-17 | ||
JPS5078706A (ja) * | 1973-11-20 | 1975-06-26 | ||
JPS5381807A (en) * | 1976-12-25 | 1978-07-19 | Toyota Motor Corp | Internal combustion engine |
DE2821155A1 (de) * | 1978-05-13 | 1979-12-13 | Volkswagenwerk Ag | Fremdgezuendete, gemischverdichtende brennkraftmaschine |
GB2033471B (en) * | 1978-11-08 | 1983-01-19 | Teledyne Ind | Pre-combustion chamber internal combustion engine |
CA1329780C (en) * | 1988-05-07 | 1994-05-24 | Dan Merritt | Internal combustion engine |
US8215292B2 (en) * | 1996-07-17 | 2012-07-10 | Bryant Clyde C | Internal combustion engine and working cycle |
GB2493118B (en) * | 2008-03-12 | 2013-02-27 | Cameron Int Corp | A Pre-chamber for an Engine coupled to a Gas Well |
CN101482051A (zh) * | 2009-01-20 | 2009-07-15 | 大连理工大学 | 多通道涡流燃烧室 |
AT510435B1 (de) * | 2010-11-02 | 2012-04-15 | Ge Jenbacher Gmbh & Co Ohg | Hubkolbenmotor |
AT13172U1 (de) * | 2011-12-28 | 2013-07-15 | Ge Jenbacher Gmbh & Co Ohg | Vorkammersystem für eine Brennkraftmaschine |
WO2014040607A1 (en) * | 2012-09-12 | 2014-03-20 | Mwm Gmbh | Gas mixer for internal combustion engines |
US10161296B2 (en) * | 2012-11-27 | 2018-12-25 | Board Of Trustees Of Michigan State University | Internal combustion engine |
US9714603B2 (en) * | 2014-07-23 | 2017-07-25 | Hyundai Motor Company | Dual pre-chamber combustion system |
EP2998537A1 (en) * | 2014-09-19 | 2016-03-23 | Caterpillar Motoren GmbH & Co. KG | Pre-chamber of internal combustion engine |
AT516251B1 (de) * | 2015-01-07 | 2016-04-15 | Hoerbiger Kompressortech Hold | Brenngaszuführungs- und Zündvorrichtung für einen Gasmotor |
AT516257B1 (de) * | 2015-01-23 | 2016-04-15 | Ge Jenbacher Gmbh & Co Og | Verbrennungsmotor |
AT516717B1 (de) * | 2015-05-26 | 2016-08-15 | Ge Jenbacher Gmbh & Co Og | Brennkraftmaschine |
US20170145900A1 (en) * | 2015-11-19 | 2017-05-25 | Caterpillar Inc. | Multiple Pre-Chamber Ignition Systems and Methods |
JP2018172975A (ja) * | 2017-03-31 | 2018-11-08 | 本田技研工業株式会社 | 内燃機関 |
US10767577B2 (en) * | 2018-05-22 | 2020-09-08 | Mazda Motor Corporation | Method of implementing control logic of compression-ignition engine |
-
2019
- 2019-09-11 DE DE202019105016.0U patent/DE202019105016U1/de active Active
-
2020
- 2020-06-08 DE DE102020115199.3A patent/DE102020115199A1/de active Pending
- 2020-08-03 WO PCT/EP2020/000140 patent/WO2021047790A1/de unknown
- 2020-08-03 CN CN202080063875.XA patent/CN114391061A/zh active Pending
- 2020-08-03 JP JP2022507653A patent/JP2022547398A/ja active Pending
- 2020-08-03 EP EP20780562.3A patent/EP4028655A1/de not_active Withdrawn
-
2021
- 2021-12-22 US US17/645,571 patent/US20220112834A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
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DE202019105016U1 (de) | 2019-09-19 |
CN114391061A (zh) | 2022-04-22 |
US20220112834A1 (en) | 2022-04-14 |
DE102020115199A1 (de) | 2020-09-24 |
EP4028655A1 (de) | 2022-07-20 |
WO2021047790A1 (de) | 2021-03-18 |
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