JP5517278B2 - 内燃機関 - Google Patents
内燃機関 Download PDFInfo
- Publication number
- JP5517278B2 JP5517278B2 JP2007531690A JP2007531690A JP5517278B2 JP 5517278 B2 JP5517278 B2 JP 5517278B2 JP 2007531690 A JP2007531690 A JP 2007531690A JP 2007531690 A JP2007531690 A JP 2007531690A JP 5517278 B2 JP5517278 B2 JP 5517278B2
- Authority
- JP
- Japan
- Prior art keywords
- piston
- recess
- ratio
- maximum
- range
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000002485 combustion reaction Methods 0.000 title claims description 76
- 239000000446 fuel Substances 0.000 claims description 66
- 230000006835 compression Effects 0.000 claims description 27
- 238000007906 compression Methods 0.000 claims description 27
- 238000002347 injection Methods 0.000 claims description 26
- 239000007924 injection Substances 0.000 claims description 26
- 238000007373 indentation Methods 0.000 claims description 19
- 239000007921 spray Substances 0.000 claims description 14
- 239000002245 particle Substances 0.000 description 17
- 230000015572 biosynthetic process Effects 0.000 description 16
- 239000004071 soot Substances 0.000 description 8
- 239000007789 gas Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 230000003993 interaction Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
- F02B2275/14—Direct injection into 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
- F02B3/00—Engines characterised by air compression and subsequent fuel addition
- F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
-
- 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)
- Fuel-Injection Apparatus (AREA)
Description
Claims (5)
- 内燃機関であって、
− 燃焼室(5)がピストン(2)とシリンダヘッド(1)との間に画定された、少なくとも一つのシリンダと、
− 前記シリンダヘッド(1)内に配置され、複数の噴射孔を有する噴射ノズル(3)を有する燃料噴射装置(6)と、
− 最大窪み深さ(TM)を有する窪みの基底(13)を有するとともに、内部に窪み角(α)を有する圧縮突起部(10)が前記噴射ノズル(3)に対向して配置された、前記ピストン(2)に設けられたピストンの窪み(4)とを有し、
− 上死点の前20°CAから上死点の後35°CA迄の範囲内で行なわれる燃料噴射の間に、燃料円錐角(β)を有して前記噴射孔から噴射される燃料噴霧(8)が、前記ピストンの窪み(4)に衝突するように前記噴射孔が形成される内燃機関であって、
− 窪みの縁の最上部に揃えられた水平面の下方で、前記ピストンの窪み(4)が窪み体積(MV)を有し、窪み体積(MV)に対する最大窪み深さ(TM)の比率(TM/MV)が0.05〜0.35/cm2の範囲内にあるように前記ピストンの窪み(4)が形成され、
− 前記ピストンの窪み(4)が最大窪み直径(DM)を有する環状の窪みの縁(12)によって囲まれ、前記ピストン(2)がピストン直径(DK)を有し、最大窪み直径(DM)に対するピストン直径(DK)の比率(DK/DM)が1.05〜1.4の範囲内にあり、
− 前記噴射孔及び圧縮突起部(10)が、前記窪み角(α)に対する前記燃料円錐角(β)の比率(β/α)が1.15〜1.3の範囲内にあるように、形成され、
− 前記最大窪み深さにおける直径(Dmin)のピストン直径(DK)に対する比率(Dmin/DK)が0.3〜0.39の範囲内にあり、
− ピストンの窪み輪郭(11)が前記窪みの基底(13)と前記窪みの縁(12)との間に窪みの基底曲率半径(RK)を有し、最大窪み直径(DM)に対する窪みの基底曲率半径(RK)の比率(RK/DM)が0.1〜0.35の範囲内にあり、
− 前記ピストンの窪み輪郭(11)が前記圧縮突起部(10)と前記窪みの基底(13)との間に突起曲率半径(RH)を有し、最大窪み直径(DM)に対する突起曲率半径(RH)の比率(RH/DM)が0.45〜1.1の範囲内にあり、
− 圧縮突起部(10)は、その最大突出領域(10a)がピストンヘッド(7)から圧縮スペース(H)だけ奥まって形成され、最大窪み深さ(TM)に対する圧縮スペース(H)の比率(H/TM)が0.1〜0.45の範囲内にあることを特徴とする内燃機関。 - 窪み体積(MV)に対する最大窪み深さ(TM)の比率(TM/MV)が0.1〜0.25/cm2の範囲内にあるように前記ピストンの窪み(4)が形成されることを特徴とする請求項1に記載の内燃機関。
- 最大窪み直径(DM)に対するピストン直径(DK)の比率(DK/DM)が1.1〜1.2の範囲内にあることを特徴とする請求項1あるいは2に記載の内燃機関。
- 前記最大窪み直径(DM)に対する前記窪みの基底曲率半径(RK)の比率(RK/DM)が0.16〜0.22の範囲内にあることを特徴とする請求項1〜3のいずれか一項に記載の内燃機関。
- 前記最大窪み深さ(TM)に対する前記圧縮スペース(H)の比率(H/TM)が0.15〜0.25の範囲内にあることを特徴とする請求項1〜4のいずれか一項に記載の内燃機関。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004045634A DE102004045634A1 (de) | 2004-09-21 | 2004-09-21 | Brennkraftmaschine |
DE102004045634.8 | 2004-09-21 | ||
PCT/EP2005/009977 WO2006032410A1 (de) | 2004-09-21 | 2005-09-16 | Brennkraftmaschine |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008513659A JP2008513659A (ja) | 2008-05-01 |
JP5517278B2 true JP5517278B2 (ja) | 2014-06-11 |
Family
ID=35197923
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007531690A Active JP5517278B2 (ja) | 2004-09-21 | 2005-09-16 | 内燃機関 |
Country Status (5)
Country | Link |
---|---|
US (1) | US8511271B2 (ja) |
EP (1) | EP1792065B1 (ja) |
JP (1) | JP5517278B2 (ja) |
DE (2) | DE102004045634A1 (ja) |
WO (1) | WO2006032410A1 (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB201001562D0 (en) * | 2010-01-29 | 2010-03-17 | Ricardo Uk Ltd | Direct injection diesel |
DE102011081639B4 (de) | 2011-08-26 | 2016-04-21 | Federal-Mogul Nürnberg GmbH | Gestaltoptimierte Brennraummulde eines Kolbens |
US9328693B2 (en) * | 2013-07-17 | 2016-05-03 | Electro-Motive Diesel, Inc. | Piston, engine and operating method for reduced production of particulate matter |
DE102014005138A1 (de) * | 2014-04-08 | 2015-10-08 | Mtu Friedrichshafen Gmbh | Kolben für eine Brennkraftmaschine |
CZ306050B6 (cs) * | 2014-06-18 | 2016-07-13 | Zdeněk Novotný | Dvoudobý spalovací motor |
CN106593680A (zh) * | 2016-11-23 | 2017-04-26 | 奇瑞汽车股份有限公司 | 中置喷油器缸内直喷汽油发动机用活塞 |
Family Cites Families (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2945490A1 (de) | 1978-11-16 | 1980-05-22 | List Hans | Luftverdichtende, direkt einspritzende brennkraftmaschine |
US4377967A (en) * | 1981-03-27 | 1983-03-29 | Mack Trucks, Inc. | Two-piece piston assembly |
DE3325586C2 (de) * | 1983-07-15 | 1986-08-28 | Daimler-Benz Ag, 7000 Stuttgart | Brennstoffeinspritzdüse für eine luftverdichtende Brennkraftmaschine |
DE3724618C2 (de) * | 1986-08-01 | 1988-08-04 | Elsbett L | Zweiteiliger Kolben |
CN1015395B (zh) * | 1988-02-08 | 1992-02-05 | 胡国栋 | 柴油机直接喷射式燃烧室装置 |
JPH05106442A (ja) * | 1991-10-15 | 1993-04-27 | Yanmar Diesel Engine Co Ltd | 直接噴射式デイーゼル機関 |
US5285755A (en) * | 1993-03-08 | 1994-02-15 | Chrysler Corporation | Open chamber diesel engine having a piston with recesses therein |
DE19649052A1 (de) | 1996-11-27 | 1998-05-28 | Mtu Friedrichshafen Gmbh | Dieselmotor mit Direkteinspritzung und einer Kolbenmulde |
US5868112A (en) * | 1996-12-19 | 1999-02-09 | Cummins Engine Company, Inc. | Deep angle injection nozzle and piston having complementary combustion bowl |
JP3751462B2 (ja) * | 1998-03-27 | 2006-03-01 | 株式会社豊田中央研究所 | 直接噴射式ディーゼル機関 |
JP2000220520A (ja) * | 1999-01-27 | 2000-08-08 | Komatsu Ltd | 内燃機関のピストン |
DE20022956U1 (de) | 2000-06-08 | 2002-07-25 | DaimlerChrysler AG, 70567 Stuttgart | Luftverdichtende Brennkraftmaschine |
DE10028449A1 (de) * | 2000-06-08 | 2001-07-05 | Daimler Chrysler Ag | Luftverdichtende Brennkraftmaschine |
JP2002147240A (ja) * | 2000-11-16 | 2002-05-22 | Nissan Motor Co Ltd | ディーゼルエンジンの燃焼室構造 |
EP1217186B1 (fr) * | 2000-12-20 | 2015-07-29 | Institut Français du Pétrole | Moteur à injection directe pourvu d'un faible angle de nappe et procédés permettant d'utiliser un tel moteur |
AT5997U1 (de) | 2002-01-10 | 2003-02-25 | Avl List Gmbh | Kolben für eine luftverdichtende brennkraftmaschine |
DE10213011B4 (de) * | 2002-03-22 | 2014-02-27 | Daimler Ag | Selbstzündende Brennkraftmaschine |
US7210448B2 (en) * | 2002-06-11 | 2007-05-01 | Cummins, Inc. | Internal combustion engine producing low emissions |
US6732703B2 (en) * | 2002-06-11 | 2004-05-11 | Cummins Inc. | Internal combustion engine producing low emissions |
CA2406209C (en) * | 2002-10-02 | 2007-04-17 | Westport Research Inc. | Direct injection combustion chamber geometry |
AT7204U1 (de) | 2002-12-19 | 2004-11-25 | Avl List Gmbh | Verfahren zum betreiben einer direkteinspritzenden diesel-brennkraftmaschine |
KR101130637B1 (ko) * | 2003-12-01 | 2012-04-02 | 가부시키가이샤 고마쓰 세이사쿠쇼 | 연료 직접 분사식 디젤 엔진 |
JP4384945B2 (ja) * | 2004-07-09 | 2009-12-16 | ヤンマー株式会社 | 直噴式ディーゼル機関の燃焼室形状 |
US7654240B2 (en) * | 2006-08-18 | 2010-02-02 | Caterpillar Inc. | Engine piston having an insulating air gap |
-
2004
- 2004-09-21 DE DE102004045634A patent/DE102004045634A1/de not_active Withdrawn
-
2005
- 2005-09-16 JP JP2007531690A patent/JP5517278B2/ja active Active
- 2005-09-16 US US11/663,283 patent/US8511271B2/en active Active
- 2005-09-16 EP EP05783974A patent/EP1792065B1/de active Active
- 2005-09-16 WO PCT/EP2005/009977 patent/WO2006032410A1/de active Application Filing
- 2005-09-16 DE DE502005010185T patent/DE502005010185D1/de active Active
Also Published As
Publication number | Publication date |
---|---|
EP1792065B1 (de) | 2010-09-01 |
US8511271B2 (en) | 2013-08-20 |
US20090007879A1 (en) | 2009-01-08 |
JP2008513659A (ja) | 2008-05-01 |
DE102004045634A1 (de) | 2006-04-06 |
WO2006032410A1 (de) | 2006-03-30 |
EP1792065A1 (de) | 2007-06-06 |
DE502005010185D1 (de) | 2010-10-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4877256B2 (ja) | 筒内直接噴射火花点火式内燃機関及びその燃料噴射方法 | |
KR101996085B1 (ko) | 질소 산화물 저감을 위한 직접 분사식 디젤 엔진의 연소실 | |
JP5517278B2 (ja) | 内燃機関 | |
WO1996030632A1 (fr) | Moteur a combustion interne du type a injection dans le cylindre | |
JP2011502226A (ja) | 車両の燃焼機関の排気を削減する装置 | |
CN102822470A (zh) | 布置成在内燃机气缸内往复运动的活塞 | |
JP2003120300A (ja) | ガソリン直接噴射式エンジン | |
JP2008519200A (ja) | 直接噴射方式の内燃機関 | |
JPH0571347A (ja) | 直接噴射式デイーゼル機関の燃焼室 | |
EP0911500A2 (en) | Direct injection diesel engine | |
US7506631B2 (en) | Internal combustion engine | |
JP3781536B2 (ja) | 筒内噴射式エンジンの燃焼室構造 | |
JP6515941B2 (ja) | 火花点火式内燃機関 | |
JP2006510844A (ja) | 自己点火式内燃機関 | |
JP6627844B2 (ja) | エンジン | |
JP6508239B2 (ja) | 火花点火式内燃機関 | |
US20070261667A1 (en) | Spark ignition internal combustion engine with direct fuel injection | |
JPH07208170A (ja) | 副室式エンジンにおける副室構造 | |
US20070261664A1 (en) | Internal combustion engine with direct fuel injection | |
JPH1082323A (ja) | ディーゼルエンジンの燃焼室 | |
EP0909893A2 (en) | Direct injection diesel engine | |
JPH0913971A (ja) | 渦流室式ディーゼルエンジンのコンバッションチャンバの噴口の構造 | |
JP4016748B2 (ja) | 筒内直接噴射火花点火式内燃機関 | |
JP2001073778A (ja) | 筒内噴射エンジンの燃焼室構造 | |
JPH0510137A (ja) | 筒内噴射式内燃機関 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20080828 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20101221 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20110318 |
|
RD03 | Notification of appointment of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7423 Effective date: 20110318 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20110517 |
|
A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20110817 |
|
A602 | Written permission of extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A602 Effective date: 20110824 |
|
A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20110920 |
|
A602 | Written permission of extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A602 Effective date: 20110928 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20111017 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20120508 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20120807 |
|
A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20130226 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20140328 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 5517278 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
RD04 | Notification of resignation of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: R3D04 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313113 |
|
S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
|
R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |