SE1750321A1 - A piston for an internal combustion engine - Google Patents

A piston for an internal combustion engine

Info

Publication number
SE1750321A1
SE1750321A1 SE1750321A SE1750321A SE1750321A1 SE 1750321 A1 SE1750321 A1 SE 1750321A1 SE 1750321 A SE1750321 A SE 1750321A SE 1750321 A SE1750321 A SE 1750321A SE 1750321 A1 SE1750321 A1 SE 1750321A1
Authority
SE
Sweden
Prior art keywords
side wall
annular
piston
wall portion
combustion engine
Prior art date
Application number
SE1750321A
Other languages
English (en)
Other versions
SE542212C2 (en
Inventor
Dembinski Henrik
Original Assignee
Scania Cv Ab
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=63523202&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=SE1750321(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Scania Cv Ab filed Critical Scania Cv Ab
Priority to SE1750321A priority Critical patent/SE542212C2/en
Priority to US16/492,815 priority patent/US20200141305A1/en
Priority to CN201880017167.5A priority patent/CN110392771A/zh
Priority to EP18767149.0A priority patent/EP3596320B1/en
Priority to PCT/SE2018/050185 priority patent/WO2018169466A1/en
Priority to KR1020197028113A priority patent/KR20190116513A/ko
Publication of SE1750321A1 publication Critical patent/SE1750321A1/sv
Publication of SE542212C2 publication Critical patent/SE542212C2/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F3/00—Pistons 
    • F02F3/26—Pistons  having combustion chamber in piston head
    • 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
    • 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
    • F02B23/0678—Unconventional, complex or non-rotationally symmetrical shapes of the combustion space, e.g. flower like, having special shapes related to the orientation of the fuel spray jets
    • 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
    • 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
    • F02B23/0672—Omega-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 center axis
    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F3/00—Pistons 
    • F02F3/24—Pistons  having means for guiding gases in cylinders, e.g. for guiding scavenging charge in two-stroke engines
    • 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)
SE1750321A 2017-03-17 2017-03-17 A piston with a piston bowl comprising protrusions for an internal combustion engine SE542212C2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
SE1750321A SE542212C2 (en) 2017-03-17 2017-03-17 A piston with a piston bowl comprising protrusions for an internal combustion engine
US16/492,815 US20200141305A1 (en) 2017-03-17 2018-02-27 A piston for an internal combustion engine
CN201880017167.5A CN110392771A (zh) 2017-03-17 2018-02-27 用于内燃机的活塞
EP18767149.0A EP3596320B1 (en) 2017-03-17 2018-02-27 A piston for an internal combustion engine
PCT/SE2018/050185 WO2018169466A1 (en) 2017-03-17 2018-02-27 A piston for an internal combustion engine
KR1020197028113A KR20190116513A (ko) 2017-03-17 2018-02-27 내연기관용 피스톤

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1750321A SE542212C2 (en) 2017-03-17 2017-03-17 A piston with a piston bowl comprising protrusions for an internal combustion engine

Publications (2)

Publication Number Publication Date
SE1750321A1 true SE1750321A1 (sv) 2018-09-18
SE542212C2 SE542212C2 (en) 2020-03-10

Family

ID=63523202

Family Applications (1)

Application Number Title Priority Date Filing Date
SE1750321A SE542212C2 (en) 2017-03-17 2017-03-17 A piston with a piston bowl comprising protrusions for an internal combustion engine

Country Status (6)

Country Link
US (1) US20200141305A1 (sv)
EP (1) EP3596320B1 (sv)
KR (1) KR20190116513A (sv)
CN (1) CN110392771A (sv)
SE (1) SE542212C2 (sv)
WO (1) WO2018169466A1 (sv)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116398314A (zh) * 2023-03-27 2023-07-07 一汽解放汽车有限公司 柴油机燃烧室、活塞和柴油机

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10774782B2 (en) * 2018-06-07 2020-09-15 Caterpillar Inc. Piston design for flow re-direction
DE102019209232A1 (de) * 2019-06-26 2020-12-31 Technische Universität München HPDF-Betriebsverfahren für eine Brennkraftmaschine, Brennkraftmaschine und Arbeitsvorrichtung
US11274628B2 (en) * 2020-06-02 2022-03-15 Caterpillar Inc. Internal combustion engine and piston having stepped combustion bowl with non-axisymmetric profile
CN112065601A (zh) * 2020-09-11 2020-12-11 潍柴动力股份有限公司 一种活塞及发动机
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
JP7463311B2 (ja) 2021-03-01 2024-04-08 株式会社Soken 内燃機関
US11959414B2 (en) 2022-03-23 2024-04-16 Caterpillar Inc. Gaseous fuel reciprocating engine and operating methodology for reduced hydrogen flame speed
US11959436B2 (en) * 2022-09-20 2024-04-16 Tenneco Inc. Piston including spiral features to increase in-cylinder swirl

Family Cites Families (17)

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DE2945490A1 (de) * 1978-11-16 1980-05-22 List Hans Luftverdichtende, direkt einspritzende brennkraftmaschine
GB8317453D0 (en) * 1983-06-28 1983-08-03 Massey Ferguson Perkins Ltd Ic engine
JPS60224920A (ja) * 1984-04-23 1985-11-09 Yamaha Motor Co Ltd ピストン頂面の燃焼室構造
JPH08260986A (ja) * 1995-03-27 1996-10-08 Toyota Motor Corp 筒内噴射式内燃機関
JP3767125B2 (ja) * 1997-10-21 2006-04-19 日産自動車株式会社 筒内噴射式内燃機関のピストン
SE521018C2 (sv) * 1998-04-01 2003-09-23 Scania Cv Ab Förbränningsmotor med direktinsprutning
FR2834003B1 (fr) * 2001-12-21 2004-07-09 Renault Moteur multicylindre a allumage par compression, notamment de type diesel a injection directe, a pistons presentant un fond de bol specialement profile
FR2898638B1 (fr) 2006-03-17 2010-07-30 Inst Francais Du Petrole Procede pour melanger au moins un fluide gazeux et un carburant dans la chambre de combustion d'un moteur a combustion interne a injection directe, et moteur utilisant un tel procede
DE102006020642B4 (de) * 2006-05-04 2019-05-23 Daimler Ag Verfahren zum Betrieb einer Brennkraftmaschine und Brennkraftmaschine für ein solches Verfahren
JP5741594B2 (ja) 2010-02-18 2015-07-01 ボルボ テクノロジー コーポレイション 燃焼エンジンシリンダ内で往復移動するように配置されたピストン
US9279361B2 (en) 2010-04-20 2016-03-08 Southwest Research Institute Piston bowl with spray jet targets
DE102010027637A1 (de) * 2010-07-19 2012-01-19 Mtu Friedrichshafen Gmbh Kolben für Brennkraftmaschinen, sowie Brennkraftmaschine hierzu
JP5523998B2 (ja) * 2010-09-10 2014-06-18 日野自動車株式会社 直噴式ディーゼルエンジンの燃焼室構造
CN202031718U (zh) * 2011-01-07 2011-11-09 北京建筑工程学院 一种五心瓣型燃烧室
JP5953067B2 (ja) * 2012-02-28 2016-07-13 日野自動車株式会社 直接噴射式ディーゼルエンジン、及び直接噴射式ディーゼルエンジン用ピストン
CN102661193B (zh) * 2012-05-16 2013-09-04 大连理工大学 直喷式柴油机双层分流燃烧系统
CN105909420A (zh) * 2016-06-14 2016-08-31 广西玉柴机器股份有限公司 降低柴油机缸内碳烟的燃烧室

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116398314A (zh) * 2023-03-27 2023-07-07 一汽解放汽车有限公司 柴油机燃烧室、活塞和柴油机

Also Published As

Publication number Publication date
KR20190116513A (ko) 2019-10-14
SE542212C2 (en) 2020-03-10
WO2018169466A1 (en) 2018-09-20
EP3596320B1 (en) 2024-05-01
EP3596320A4 (en) 2020-08-12
US20200141305A1 (en) 2020-05-07
CN110392771A (zh) 2019-10-29
EP3596320A1 (en) 2020-01-22

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