JPS6415423A - Combustion chamber for internal combustion engine - Google Patents

Combustion chamber for internal combustion engine

Info

Publication number
JPS6415423A
JPS6415423A JP62171233A JP17123387A JPS6415423A JP S6415423 A JPS6415423 A JP S6415423A JP 62171233 A JP62171233 A JP 62171233A JP 17123387 A JP17123387 A JP 17123387A JP S6415423 A JPS6415423 A JP S6415423A
Authority
JP
Japan
Prior art keywords
piston
main
nozzle
combustion chamber
combustion
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
JP62171233A
Other languages
Japanese (ja)
Inventor
Naoki Yanagisawa
Yukio Yoshida
Toshiaki Adachi
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.)
Isuzu Motors Ltd
Original Assignee
Isuzu Motors Ltd
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 Isuzu Motors Ltd filed Critical Isuzu Motors Ltd
Priority to JP62171233A priority Critical patent/JPS6415423A/en
Publication of JPS6415423A publication Critical patent/JPS6415423A/en
Pending legal-status Critical Current

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
    • 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
    • F02B23/0669—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
    • F02B23/0675—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 the combustion space being substantially spherical, hemispherical, ellipsoid or parabolic
    • 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
    • F02B23/0687—Multiple bowls in the piston, e.g. one bowl per fuel spray jet
    • 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
    • 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)

Abstract

PURPOSE:To enhance an air utilization factor as well as to improve the extent of combustion performance by installing a semispherical combustion chamber concavely in an eccentric position of the piston to, while setting up a fuel injection nozzle, having plural nozzle holes supplying fuel to each specific direction, at the side of a piston shaft center in the combustion chamber. CONSTITUTION:In the top 2 of a piston 1, there is provided with each of main and sub combustion chambers 3 and 4 hollowed each in the axial direction in a parallel manner with the top face 2a as a criterion. And, each of these combustion chambers 3 and 4 is concavely installed in each eccentric position to a shaft center O1 of the piston 1. On the other hand, as for a fuel injection nozzle 7, two main nozzles 8 and 9 and one subnozzle 10 are installed each in a top of the nozzle body 7a at intervals in the circumferential direction. And, the main nozzle 8 on one side is adjoined to the combustion chamber 3 at the upstream side of a swirl flow Sa of combustion air to be led into the main combustion chamber 3 and at the side of the shaft center O1 of the piston 1. In addition, the main nozzle 9 on the other is adjoined to the more swirl downstream than a position where the other main nozzle 8 is adjoined.
JP62171233A 1987-07-10 1987-07-10 Combustion chamber for internal combustion engine Pending JPS6415423A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62171233A JPS6415423A (en) 1987-07-10 1987-07-10 Combustion chamber for internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62171233A JPS6415423A (en) 1987-07-10 1987-07-10 Combustion chamber for internal combustion engine

Publications (1)

Publication Number Publication Date
JPS6415423A true JPS6415423A (en) 1989-01-19

Family

ID=15919512

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62171233A Pending JPS6415423A (en) 1987-07-10 1987-07-10 Combustion chamber for internal combustion engine

Country Status (1)

Country Link
JP (1) JPS6415423A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1004757A1 (en) * 1998-11-23 2000-05-31 Ford Global Technologies, Inc., A subsidiary of Ford Motor Company Direct injection spark ignition engine
CN110799736A (en) * 2017-09-26 2020-02-14 宝马股份公司 Internal combustion engine
CN112879148A (en) * 2021-01-25 2021-06-01 华中科技大学 Asymmetric combustion chamber system suitable for high power density diesel engine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1004757A1 (en) * 1998-11-23 2000-05-31 Ford Global Technologies, Inc., A subsidiary of Ford Motor Company Direct injection spark ignition engine
CN110799736A (en) * 2017-09-26 2020-02-14 宝马股份公司 Internal combustion engine
US11125181B2 (en) 2017-09-26 2021-09-21 Bayerische Motoren Werke Aktiengesellschaft Internal combustion engine
CN110799736B (en) * 2017-09-26 2021-10-29 宝马股份公司 Internal combustion engine
CN112879148A (en) * 2021-01-25 2021-06-01 华中科技大学 Asymmetric combustion chamber system suitable for high power density diesel engine

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