PH12020500006A1 - Combustion chamber structure for direct injection internal combustion engine - Google Patents

Combustion chamber structure for direct injection internal combustion engine

Info

Publication number
PH12020500006A1
PH12020500006A1 PH12020500006A PH12020500006A PH12020500006A1 PH 12020500006 A1 PH12020500006 A1 PH 12020500006A1 PH 12020500006 A PH12020500006 A PH 12020500006A PH 12020500006 A PH12020500006 A PH 12020500006A PH 12020500006 A1 PH12020500006 A1 PH 12020500006A1
Authority
PH
Philippines
Prior art keywords
tapered surface
direct injection
cavity
chamber structure
tilt angle
Prior art date
Application number
PH12020500006A
Inventor
Yuuta SHIMIZU
Daisuke Ozawa
Hitoshi Tateishi
Takuya Arai
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
Publication of PH12020500006A1 publication Critical patent/PH12020500006A1/en

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
    • 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)
  • Combustion Methods Of Internal-Combustion Engines (AREA)

Abstract

This combustion chamber structure for a direct injection internal combustion engine is provided with: a cavity 11 formed at the center of a piston top surface 8; and the outer peripheral section 20 of the piston top surface, which is located radially outside the cavity. The outer peripheral section of the piston top surface comprises: a first tapered surface 21 which is connected to a cavity inner wall 30 defining the cavity, is located radially outside the cavity inner wall, and has a first tilt angle ?1 relative to an imaginary plane perpendicular to a piston center axis; and a second tapered surface 22 which is connected to the first tapered surface, is located radially outside the first tapered surface, and has a second tilt angle ?2 relative to the imaginary plane f perpendicular to the piston center axis C. The second tilt angle ?2 of the second tapered surface 22 is greater than the first tilt angle ?1 of the first tapered surface 21.
PH12020500006A 2017-07-11 2020-01-02 Combustion chamber structure for direct injection internal combustion engine PH12020500006A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017135615A JP7005974B2 (en) 2017-07-11 2017-07-11 Combustion chamber structure of direct injection internal combustion engine
PCT/JP2018/026087 WO2019013221A1 (en) 2017-07-11 2018-07-10 Combustion chamber structure for direct injection internal combustion engine

Publications (1)

Publication Number Publication Date
PH12020500006A1 true PH12020500006A1 (en) 2020-12-07

Family

ID=65001383

Family Applications (1)

Application Number Title Priority Date Filing Date
PH12020500006A PH12020500006A1 (en) 2017-07-11 2020-01-02 Combustion chamber structure for direct injection internal combustion engine

Country Status (4)

Country Link
JP (1) JP7005974B2 (en)
CN (1) CN110869592B (en)
PH (1) PH12020500006A1 (en)
WO (1) WO2019013221A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021181765A (en) * 2020-05-19 2021-11-25 株式会社小松製作所 Piston for diesel engine and diesel engine
CN112432204B (en) * 2020-12-04 2022-04-22 中国人民解放军国防科技大学 Reentrant structure and scramjet that can internal flow drag reduction

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4906055B2 (en) * 2006-02-08 2012-03-28 日野自動車株式会社 Combustion chamber structure of direct injection diesel engine
GB201001562D0 (en) * 2010-01-29 2010-03-17 Ricardo Uk Ltd Direct injection diesel
CA2826435C (en) * 2013-09-06 2016-01-05 Westport Power Inc. Combustion system for gaseous fuelled internal combustion engine
FR3018552B1 (en) * 2014-03-14 2019-07-05 IFP Energies Nouvelles COMBUSTION ENGINE WITH DIRECT INJECTION OF COMPRESSION IGNITION FUEL COMPRISING PISTON COOLING MEANS.
WO2015177897A1 (en) * 2014-05-22 2015-11-26 日産自動車株式会社 Combustion chamber structure for diesel engine
JP2016125422A (en) * 2015-01-05 2016-07-11 いすゞ自動車株式会社 Combustion chamber structure of direct injection type engine

Also Published As

Publication number Publication date
WO2019013221A1 (en) 2019-01-17
CN110869592A (en) 2020-03-06
JP7005974B2 (en) 2022-01-24
CN110869592B (en) 2021-11-02
JP2019019676A (en) 2019-02-07

Similar Documents

Publication Publication Date Title
MX2018001889A (en) Piston with a low overall height.
JP2018025196A5 (en)
PH12020500006A1 (en) Combustion chamber structure for direct injection internal combustion engine
EP3657000A4 (en) Cast iron cylinder liner, and internal combustion engine
PH12019502375A1 (en) Spark plug sleeve
WO2014032644A3 (en) Piston for an internal combustion engine
MX365766B (en) Lightweight construction of a diesel piston.
WO2018213264A3 (en) Combustion pre-chamber assemblies for an internal combustion engine
PL3574204T3 (en) Internal combustion engine comprising a fuel injection nozzle with an additional supply of a combustion-promoting medium into the combustion chamber
GB2561494A (en) Engine valve
MX369295B (en) Compression piston ring for an internal combusion engine.
JP2015031278A5 (en)
FR2958014B1 (en) COMBUSTION CHAMBER WITH INJECTORS SHIFTING LONGITUDINALLY ON THE SAME CROWN
EP4269763A3 (en) Engine system for emission reduction without aftertreatment
MY165714A (en) Internal combustion engine
EP3880947A4 (en) Piston internal combustion engine with generator
EA202100180A1 (en) HAND PUMP
EP3779141A4 (en) Combustion chamber structure of internal combustion engine
MX2016004545A (en) Piston for an internal combustion engine, and production method therefor.
RU2017102894A (en) BURNING METHOD
MX2018011506A (en) Cylinder block and internal combustion engine provided with same.
WO2014033011A3 (en) Piston
WO2015087137A3 (en) Compression ignition internal combustion engine
RU2014120308A (en) THE SPRAY NOZZLE
RU2019107137A (en) FUEL BURNER