FR3073005B1 - COMBUSTION CHAMBER STRUCTURE OF AN INTERNAL COMBUSTION ENGINE - Google Patents

COMBUSTION CHAMBER STRUCTURE OF AN INTERNAL COMBUSTION ENGINE Download PDF

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Publication number
FR3073005B1
FR3073005B1 FR1859976A FR1859976A FR3073005B1 FR 3073005 B1 FR3073005 B1 FR 3073005B1 FR 1859976 A FR1859976 A FR 1859976A FR 1859976 A FR1859976 A FR 1859976A FR 3073005 B1 FR3073005 B1 FR 3073005B1
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France
Prior art keywords
ridge
piston
chamber structure
exhaust side
combustion chamber
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
FR1859976A
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French (fr)
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FR3073005A1 (en
Inventor
Nobuo Tabuchi
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.)
Suzuki Motor Corp
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Suzuki Motor Corp
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Publication date
Application filed by Suzuki Motor Corp filed Critical Suzuki Motor Corp
Publication of FR3073005A1 publication Critical patent/FR3073005A1/en
Application granted granted Critical
Publication of FR3073005B1 publication Critical patent/FR3073005B1/en
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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
    • F02B23/08—Other engines characterised by special shape or construction of combustion chambers to improve operation with positive 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
    • F02F1/00—Cylinders; Cylinder heads 
    • 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 
    • F02F3/28—Other pistons with specially-shaped 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)
  • Pistons, Piston Rings, And Cylinders (AREA)

Abstract

L'invention concerne une structure de chambre de combustion d'un moteur à combustion interne comportant des évidements de soupape, un renflement, et une coupelle formée dans ou sur la surface supérieure d'un piston afin d'améliorer l'inflammabilité d'un mélange air-carburant et de réduire les pertes de refroidissement du gaz brûlé. Spécifiquement, la structure de chambre de combustion d'un moteur (1) comprend une arête côté admission (23), une arête côté échappement (24), une première arête de liaison (25), et une deuxième arête de liaison (26). L'arête côté admission (23) passe à côté des évidements de soupape (17) et (18) du côté admission et d'une partie plate (15) du côté admission du piston. L'arête côté échappement (24) passe à côté des évidements de soupape (19) et (20) du côté échappement et d'une partie plate (16) du côté échappement du piston. La première arête de liaison (25) et la deuxième arête de liaison (26) relient ensemble les extrémités (24a) et (24b) de l'arête côté admission (23) et les extrémités (24a) et (24b) de l'arête côté échappement (24) et s'étendent le long des bords périphériques externes (5d) et (5e) d'une surface supérieure (5A) d'un piston (5,) respectivement. Le renflement (21) comporte une première coupelle (22) en retrait vers un axe central (5 a) du piston (5).A combustion chamber structure of an internal combustion engine includes valve recesses, a bulge, and a cup formed in or on the upper surface of a piston to improve the flammability of a piston. air-fuel mixture and reduce the cooling losses of the burnt gas. Specifically, the combustion chamber structure of an engine (1) includes an intake side ridge (23), an exhaust side ridge (24), a first connecting ridge (25), and a second connecting ridge (26). . The intake side ridge (23) passes next to the valve recesses (17) and (18) on the intake side and a flat portion (15) on the intake side of the piston. The exhaust side ridge (24) passes next to the valve recesses (19) and (20) on the exhaust side and a flat portion (16) on the exhaust side of the piston. The first connecting ridge (25) and the second connecting ridge (26) connect together the ends (24a) and (24b) of the inlet side ridge (23) and the ends (24a) and (24b) of the exhaust side ridge (24) and extend along the outer peripheral edges (5d) and (5e) of an upper surface (5A) of a piston (5,) respectively. The bulge (21) comprises a first cup (22) set back towards a central axis (5 a) of the piston (5).

FR1859976A 2017-11-01 2018-10-26 COMBUSTION CHAMBER STRUCTURE OF AN INTERNAL COMBUSTION ENGINE Active FR3073005B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017-211812 2017-11-01
JP2017211812A JP6946944B2 (en) 2017-11-01 2017-11-01 Combustion chamber structure of internal combustion engine

Publications (2)

Publication Number Publication Date
FR3073005A1 FR3073005A1 (en) 2019-05-03
FR3073005B1 true FR3073005B1 (en) 2021-12-10

Family

ID=66138337

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1859976A Active FR3073005B1 (en) 2017-11-01 2018-10-26 COMBUSTION CHAMBER STRUCTURE OF AN INTERNAL COMBUSTION ENGINE

Country Status (4)

Country Link
JP (1) JP6946944B2 (en)
CN (1) CN109751114B (en)
DE (1) DE102018218523B4 (en)
FR (1) FR3073005B1 (en)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS503496A (en) 1973-05-16 1975-01-14
JPH08144767A (en) * 1994-11-25 1996-06-04 Yamaha Motor Co Ltd Combustion chamber structure of engine
US6725828B1 (en) 2003-06-17 2004-04-27 Ford Global Technologies, Llc Vortex-induced stratification combustion for direct injection spark ignition engines
JP4757112B2 (en) * 2006-06-26 2011-08-24 本田技研工業株式会社 Direct fuel injection diesel engine
JP5003496B2 (en) 2008-01-08 2012-08-15 マツダ株式会社 Reciprocating engine
US7954471B2 (en) * 2008-07-07 2011-06-07 Mazda Motor Corporation Spark ignited internal combustion engine and manufacturing the same
JP5537110B2 (en) * 2009-09-30 2014-07-02 ダイハツ工業株式会社 Internal combustion engine
JP6088015B1 (en) * 2015-09-18 2017-03-01 富士重工業株式会社 Fuel injection device
JP6088016B1 (en) 2015-09-18 2017-03-01 富士重工業株式会社 piston
JP7346929B2 (en) 2019-06-20 2023-09-20 ブラザー工業株式会社 liquid discharge device

Also Published As

Publication number Publication date
CN109751114A (en) 2019-05-14
FR3073005A1 (en) 2019-05-03
JP2019085880A (en) 2019-06-06
DE102018218523A1 (en) 2019-05-02
CN109751114B (en) 2021-03-16
JP6946944B2 (en) 2021-10-13
DE102018218523B4 (en) 2021-08-05

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