JP2023166161A - 内燃機関 - Google Patents

内燃機関 Download PDF

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Publication number
JP2023166161A
JP2023166161A JP2022076997A JP2022076997A JP2023166161A JP 2023166161 A JP2023166161 A JP 2023166161A JP 2022076997 A JP2022076997 A JP 2022076997A JP 2022076997 A JP2022076997 A JP 2022076997A JP 2023166161 A JP2023166161 A JP 2023166161A
Authority
JP
Japan
Prior art keywords
facing surface
combustion chamber
flame
peripheral wall
swirl flow
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.)
Pending
Application number
JP2022076997A
Other languages
English (en)
Japanese (ja)
Other versions
JP2023166161A5 (enExample
Inventor
俊宏 谷
Toshihiro Tani
好二 百瀬
Yoshiji Momose
義博 堀田
Yoshihiro Hotta
謹 河合
Kin Kawai
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
Priority to JP2022076997A priority Critical patent/JP2023166161A/ja
Priority to AU2023269454A priority patent/AU2023269454B2/en
Priority to DE112023002145.7T priority patent/DE112023002145T5/de
Priority to PCT/JP2023/008833 priority patent/WO2023218742A1/ja
Publication of JP2023166161A publication Critical patent/JP2023166161A/ja
Publication of JP2023166161A5 publication Critical patent/JP2023166161A5/ja
Pending legal-status Critical Current

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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)
JP2022076997A 2022-05-09 2022-05-09 内燃機関 Pending JP2023166161A (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2022076997A JP2023166161A (ja) 2022-05-09 2022-05-09 内燃機関
AU2023269454A AU2023269454B2 (en) 2022-05-09 2023-03-08 Internal combustion engine
DE112023002145.7T DE112023002145T5 (de) 2022-05-09 2023-03-08 Verbrennungsmotor
PCT/JP2023/008833 WO2023218742A1 (ja) 2022-05-09 2023-03-08 内燃機関

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2022076997A JP2023166161A (ja) 2022-05-09 2022-05-09 内燃機関

Publications (2)

Publication Number Publication Date
JP2023166161A true JP2023166161A (ja) 2023-11-21
JP2023166161A5 JP2023166161A5 (enExample) 2025-05-12

Family

ID=88729867

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2022076997A Pending JP2023166161A (ja) 2022-05-09 2022-05-09 内燃機関

Country Status (3)

Country Link
JP (1) JP2023166161A (enExample)
DE (1) DE112023002145T5 (enExample)
WO (1) WO2023218742A1 (enExample)

Cited By (1)

* 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

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Family Cites Families (6)

* 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
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
EP3176402B1 (en) * 2015-12-02 2019-05-22 Caterpillar Energy Solutions GmbH Piston for a gaseous fuel internal combustion engine
JP6551868B2 (ja) * 2017-03-17 2019-07-31 マツダ株式会社 ディーゼルエンジン

Cited By (1)

* 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

Also Published As

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

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