AU2023269454B2 - Internal combustion engine - Google Patents

Internal combustion engine

Info

Publication number
AU2023269454B2
AU2023269454B2 AU2023269454A AU2023269454A AU2023269454B2 AU 2023269454 B2 AU2023269454 B2 AU 2023269454B2 AU 2023269454 A AU2023269454 A AU 2023269454A AU 2023269454 A AU2023269454 A AU 2023269454A AU 2023269454 B2 AU2023269454 B2 AU 2023269454B2
Authority
AU
Australia
Prior art keywords
facing surface
opposite
flame
cylinder head
combustion room
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
Application number
AU2023269454A
Other languages
English (en)
Other versions
AU2023269454A1 (en
Inventor
Yoshihiro Hotta
Tsutomu Kawae
Koji Momose
Toshihiro TANI
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyota Industries Corp
Original Assignee
Toyota Industries Corp
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
Application filed by Toyota Industries Corp filed Critical Toyota Industries Corp
Publication of AU2023269454A1 publication Critical patent/AU2023269454A1/en
Application granted granted Critical
Publication of AU2023269454B2 publication Critical patent/AU2023269454B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • 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
    • F02B23/0696—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
    • 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
    • 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)
AU2023269454A 2022-05-09 2023-03-08 Internal combustion engine Active AU2023269454B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2022076997A JP2023166161A (ja) 2022-05-09 2022-05-09 内燃機関
JP2022-076997 2022-05-09
PCT/JP2023/008833 WO2023218742A1 (ja) 2022-05-09 2023-03-08 内燃機関

Publications (2)

Publication Number Publication Date
AU2023269454A1 AU2023269454A1 (en) 2024-10-17
AU2023269454B2 true AU2023269454B2 (en) 2025-12-18

Family

ID=88729867

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2023269454A Active AU2023269454B2 (en) 2022-05-09 2023-03-08 Internal combustion engine

Country Status (4)

Country Link
JP (1) JP2023166161A (https=)
AU (1) AU2023269454B2 (https=)
DE (1) DE112023002145T5 (https=)
WO (1) WO2023218742A1 (https=)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024232194A1 (ja) * 2023-05-11 2024-11-14 株式会社豊田自動織機 内燃機関
CN118959179A (zh) * 2024-10-12 2024-11-15 潍柴动力股份有限公司 一种活塞及发动机

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4635597A (en) * 1985-01-16 1987-01-13 Yanmar Diesel Engine Co., Ltd. Structure of a main combustion chamber of a diesel engine of a direct injection type
EP3176402A1 (en) * 2015-12-02 2017-06-07 Caterpillar Energy Solutions GmbH Piston for a gaseous fuel internal combustion engine
JP2018155161A (ja) * 2017-03-17 2018-10-04 マツダ株式会社 ディーゼルエンジン

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8499735B2 (en) 2007-10-30 2013-08-06 Volvo Lastvagnar Ab Device for reducing emissions in a vehicle combustion engine
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
JP6238702B2 (ja) * 2013-11-28 2017-11-29 株式会社豊田中央研究所 ディーゼルエンジン

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4635597A (en) * 1985-01-16 1987-01-13 Yanmar Diesel Engine Co., Ltd. Structure of a main combustion chamber of a diesel engine of a direct injection type
EP3176402A1 (en) * 2015-12-02 2017-06-07 Caterpillar Energy Solutions GmbH Piston for a gaseous fuel internal combustion engine
JP2018155161A (ja) * 2017-03-17 2018-10-04 マツダ株式会社 ディーゼルエンジン

Also Published As

Publication number Publication date
JP2023166161A (ja) 2023-11-21
AU2023269454A1 (en) 2024-10-17
DE112023002145T5 (de) 2025-03-20
WO2023218742A1 (ja) 2023-11-16

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Legal Events

Date Code Title Description
FGA Letters patent sealed or granted (standard patent)