JP2017512273A - ディーゼル機関の衝突・分流燃焼室 - Google Patents
ディーゼル機関の衝突・分流燃焼室 Download PDFInfo
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- JP2017512273A JP2017512273A JP2016549578A JP2016549578A JP2017512273A JP 2017512273 A JP2017512273 A JP 2017512273A JP 2016549578 A JP2016549578 A JP 2016549578A JP 2016549578 A JP2016549578 A JP 2016549578A JP 2017512273 A JP2017512273 A JP 2017512273A
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 99
- 239000000446 fuel Substances 0.000 claims abstract description 60
- 238000002347 injection Methods 0.000 claims abstract description 19
- 239000007924 injection Substances 0.000 claims abstract description 19
- 238000000889 atomisation Methods 0.000 claims abstract description 8
- 239000003595 mist Substances 0.000 claims abstract description 3
- 230000007704 transition Effects 0.000 claims description 17
- 238000009434 installation Methods 0.000 claims description 3
- 239000000243 solution Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 20
- 239000007921 spray Substances 0.000 description 14
- 239000000203 mixture Substances 0.000 description 10
- 239000006229 carbon black Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001846 repelling effect Effects 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
- F02B23/02—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
- F02B23/06—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
- F02B23/0618—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston having in-cylinder means to influence the charge motion
- F02B23/0624—Swirl flow
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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
- F02B23/02—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
- F02B23/06—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
- F02B23/0618—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston having in-cylinder means to influence the charge motion
- F02B23/0621—Squish flow
-
- 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
- F02B23/02—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
- F02B23/06—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
- F02B23/0645—Details related to the fuel injector or the fuel spray
- F02B23/0648—Means or methods to improve the spray dispersion, evaporation or ignition
- F02B23/0651—Means or methods to improve the spray dispersion, evaporation or ignition the fuel spray impinging on reflecting surfaces or being specially guided throughout the combustion space
-
- 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
- F02B23/02—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
- F02B23/06—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
- F02B23/0645—Details related to the fuel injector or the fuel spray
- F02B23/0669—Details related to the fuel injector or the fuel spray having multiple fuel spray jets per injector nozzle
-
- 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
- F02B23/02—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
- F02B23/06—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
- F02B23/0696—W-piston bowl, i.e. the combustion space having a central projection pointing towards the cylinder head and the surrounding wall being inclined towards the cylinder wall
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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)
- Dispersion Chemistry (AREA)
- Combustion Methods Of Internal-Combustion Engines (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
Description
2 シリンダライナ
3 ピストン
4 燃焼室
5 燃料噴射装置
6 霧状燃料
7 燃焼室頂面隙間部
8 燃焼室中央部
9 衝突環状帯部
10 上部ガイド凸面
11 衝突傾斜面
12 衝突凸面
13 衝突凹面
14 第1衝突錐面
14a 第1上部衝突傾斜面
14b 第1衝突移行曲面
14c 第1下部衝突傾斜面
15 第2衝突錐面
15a 第2上部衝突傾斜面
15b 第2衝突移行曲面
15c 第2下部衝突凹面
16 衝突曲面
16a 上部衝突凸面
16b 下部衝突凹面
17 上部ガイド平滑面
18 下部ガイド平滑面
19 下部ガイド曲面
20 下部ガイド直角円弧面
21 下部ガイド凹面
22 第1頂面隙間ガイド傾斜面
23 第2頂面隙間ガイド傾斜面
24 第1頂面隙間ガイド面
24a 第1頂面隙間ガイド凹面
24b 第3頂面隙間ガイド傾斜面
25 第2頂面隙間ガイド面
25a 第2頂面隙間ガイド凹面
25b 第4頂面隙間ガイド傾斜面
26 第3頂面隙間ガイド面
26a 頂面隙間ガイド移行面
26b 第5頂面隙間ガイド傾斜面
26c 頂面隙間移行面
26d 第6頂面隙間ガイド傾斜面
27 ω形底面
28 浅皿形底面
Claims (10)
- 燃料噴射装置(5)はマルチポイント式で高圧燃料を霧状でシリンダヘッド(1)とシリンダライナ(2)とピストン(3)とから成る燃焼室(4)内に噴射するディーゼル機関の衝突・分流燃焼室であって、前記燃焼室(4)が頂面隙間高さHの増加、喉部直径D1の調整及び衝突環状帯部(9)の設置を通じて、前記燃焼室(4)を燃焼室頂面隙間部(7)と燃焼室中央部(8)という2つの領域に分け、前記燃焼室頂面隙間部(7)の直径D2が気筒直径とし;前記燃料噴射装置(5)から噴出した霧状燃料(6)を衝突環状帯部(9)上に噴射し、一部の燃料が反発されて二次霧化を行い、一部の燃料が前記衝突環状帯部(9)に沿って各々前記燃焼室頂面隙間部(7)及び前記燃焼室中央部(8)に流れ、油気のより一層均一な混合を実現し;前記衝突環状帯部(9)は衝突面と衝突上部ガイド面と衝突下部ガイド面とを含むことを特徴とするディーゼル機関の衝突・分流燃焼室。
- 前記衝突面は、衝突傾斜面(11)、衝突凸面(12)或いは衝突凹面(13)を用い、前記衝突傾斜面(11)の傾斜角度が噴射角度に合わせて調整して前記燃焼室頂面隙間部(7)及び前記燃焼室中央部(8)の燃料分布比率を制御することを特徴とする請求項1に記載のディーゼル機関の衝突・分流燃焼室。
- 前記衝突面は、第1衝突錐面(14)、第2衝突錐面(15)或いは衝突曲面(16)を用い;前記第1衝突錐面(14)の構造が第1上部衝突傾斜面(14a)と第1衝突移行曲面(14b)と第1下部衝突傾斜面(14c)とを含み;前記第2衝突錐面(15)の構造が第2上部衝突傾斜面(15a)と第2衝突移行曲面(15b)と第2下部衝突凹面(15c)とを含み;前記衝突曲面(16)の構造が上部衝突凸面(16a)と下部衝突凹面(16b)とを含むことを特徴とする請求項1に記載のディーゼル機関の衝突・分流燃焼室。
- 前記衝突上部ガイド面は、上部ガイド凸面(10)或いは上部ガイド平滑面(17)を用い;前記上部ガイド凸面(10)がピストン頂面隙間面より高く;前記上部ガイド平滑面(17)とピストン頂面隙間面の高さが等しいことを特徴とする請求項1に記載のディーゼル機関の衝突・分流燃焼室。
- 前記衝突下部ガイド面は、下部ガイド平滑面(18)、下部ガイド曲面(19)、下部ガイド直角円弧面(20)或いは下部ガイド凹面(21)を用いることを特徴とする請求項1に記載のディーゼル機関の衝突・分流燃焼室。
- 前記ピストン頂面隙間面は、第1頂面隙間ガイド傾斜面(22)或いは第2頂面隙間ガイド傾斜面(23)を用いることを特徴とする請求項4に記載のディーゼル機関の衝突・分流燃焼室。
- 前記ピストン頂面隙間面は、第1頂面隙間ガイド凹面(24a)と第3頂面隙間ガイド傾斜面(24b)とを含む第1頂面隙間ガイド面(24)構造を用い;前記第3頂面隙間ガイド傾斜面(24b)が前記上部ガイド凸面(10)より低いことを特徴とする請求項4に記載のディーゼル機関の衝突・分流燃焼室。
- 前記ピストン頂面隙間面は、第2頂面隙間ガイド凹面(25a)と第4頂面隙間ガイド傾斜面(25b)とを含む第2頂面隙間ガイド面(25)構造を用い;前記第4頂面隙間ガイド傾斜面(25b)が前記上部ガイド凸面(10)より高いことを特徴とする請求項4に記載のディーゼル機関の衝突・分流燃焼室。
- 前記ピストン頂面隙間面は、頂面隙間ガイド移行面(26a)と第5頂面隙間ガイド傾斜面(26b)と頂面隙間移行面(26c)と第6頂面隙間ガイド傾斜面(26d)とを含む第3頂面隙間ガイド面構造(26)を用いることを特徴とする請求項1に記載のディーゼル機関の衝突・分流燃焼室。
- 前記燃焼室(4)の中央部は、ω形底面(27)或いは浅皿形底面(28)を用いることを特徴とする請求項1に記載のディーゼル機関の衝突・分流燃焼室。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201410061414.5 | 2014-02-24 | ||
CN201410061414.5A CN103835803B (zh) | 2014-02-24 | 2014-02-24 | 柴油机碰撞分流燃烧室 |
PCT/CN2015/000103 WO2015124038A1 (zh) | 2014-02-24 | 2015-02-16 | 柴油机碰撞分流燃烧室 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2017512273A true JP2017512273A (ja) | 2017-05-18 |
JP6527875B2 JP6527875B2 (ja) | 2019-06-05 |
Family
ID=50799648
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2016549578A Active JP6527875B2 (ja) | 2014-02-24 | 2015-02-16 | ディーゼル機関の衝突・分流燃焼室 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20160363042A1 (ja) |
JP (1) | JP6527875B2 (ja) |
CN (1) | CN103835803B (ja) |
WO (1) | WO2015124038A1 (ja) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
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CN104675506A (zh) * | 2014-12-31 | 2015-06-03 | 大连理工大学 | 柴油机多点分布式导向台燃烧室 |
JP6442559B2 (ja) * | 2017-05-19 | 2018-12-19 | 本田技研工業株式会社 | 動力伝達装置 |
DE102017221527A1 (de) * | 2017-11-30 | 2019-06-06 | Man Energy Solutions Se | Ventil-Kolben-System einer Brennkraftmaschine und Brennkraftmaschine |
SE542894C2 (en) * | 2018-05-30 | 2020-08-18 | Scania Cv Ab | Diesel engine |
CN108730064A (zh) * | 2018-06-27 | 2018-11-02 | 天津内燃机研究所(天津摩托车技术中心) | 柴油机活塞燃烧室 |
CN109252972A (zh) * | 2018-08-14 | 2019-01-22 | 天津大学 | 一种用于天然气发动机的燃烧室 |
CN111720235B (zh) * | 2020-06-29 | 2024-07-19 | 潍柴动力股份有限公司 | 一种活塞、发动机及车辆 |
CN112112725A (zh) * | 2020-09-28 | 2020-12-22 | 华中科技大学 | 一种适用于高功率密度柴油机的燃烧室系统 |
CN112324556B (zh) * | 2020-11-09 | 2022-01-25 | 赵伟 | 一种直喷柴油机唇口射流燃烧系统 |
CN114183235B (zh) * | 2022-02-14 | 2022-04-19 | 潍柴动力股份有限公司 | 一种内燃机 |
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2014
- 2014-02-24 CN CN201410061414.5A patent/CN103835803B/zh active Active
-
2015
- 2015-02-16 WO PCT/CN2015/000103 patent/WO2015124038A1/zh active Application Filing
- 2015-02-16 JP JP2016549578A patent/JP6527875B2/ja active Active
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2016
- 2016-08-24 US US15/245,215 patent/US20160363042A1/en not_active Abandoned
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US2762348A (en) * | 1952-02-22 | 1956-09-11 | Meurer Siegfried | Mixing arrangement in internal combustion engine |
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CA2826435A1 (en) * | 2013-09-06 | 2013-11-13 | Westport Power Inc. | Combustion system for gaseous fuelled internal combustion engine |
Also Published As
Publication number | Publication date |
---|---|
US20160363042A1 (en) | 2016-12-15 |
CN103835803A (zh) | 2014-06-04 |
WO2015124038A1 (zh) | 2015-08-27 |
CN103835803B (zh) | 2016-02-24 |
JP6527875B2 (ja) | 2019-06-05 |
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