FR2861431B1 - Piston pour chambre de combustion a haute vitesse de combustion. - Google Patents

Piston pour chambre de combustion a haute vitesse de combustion.

Info

Publication number
FR2861431B1
FR2861431B1 FR0312483A FR0312483A FR2861431B1 FR 2861431 B1 FR2861431 B1 FR 2861431B1 FR 0312483 A FR0312483 A FR 0312483A FR 0312483 A FR0312483 A FR 0312483A FR 2861431 B1 FR2861431 B1 FR 2861431B1
Authority
FR
France
Prior art keywords
piston
internal face
combustion
high speed
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.)
Expired - Lifetime
Application number
FR0312483A
Other languages
English (en)
Other versions
FR2861431A1 (fr
Inventor
Gilles Hamadani
Franck Levy
Alice Weck
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.)
Renault SAS
Original Assignee
Renault SAS
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 Renault SAS filed Critical Renault SAS
Priority to FR0312483A priority Critical patent/FR2861431B1/fr
Publication of FR2861431A1 publication Critical patent/FR2861431A1/fr
Application granted granted Critical
Publication of FR2861431B1 publication Critical patent/FR2861431B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • F02B17/00—Engines characterised by means for effecting stratification of charge in cylinders
    • 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
    • F02B17/00—Engines characterised by means for effecting stratification of charge in cylinders
    • F02B17/005—Engines characterised by means for effecting stratification of charge in cylinders having direct injection in the combustion chamber
    • 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
    • F02B23/10—Other engines characterised by special shape or construction of combustion chambers to improve operation with positive ignition with separate admission of air and fuel into cylinder
    • 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
    • F02B23/10—Other engines characterised by special shape or construction of combustion chambers to improve operation with positive ignition with separate admission of air and fuel into cylinder
    • F02B23/104—Other engines characterised by special shape or construction of combustion chambers to improve operation with positive ignition with separate admission of air and fuel into cylinder the injector being placed on a side position of the cylinder
    • 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
    • F02B31/00—Modifying induction systems for imparting a rotation to the charge in the cylinder
    • F02B31/08—Modifying induction systems for imparting a rotation to the charge in the cylinder having multiple air inlets
    • F02B31/085—Modifying induction systems for imparting a rotation to the charge in the cylinder having multiple air inlets having two inlet valves
    • 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
    • F02B23/10—Other engines characterised by special shape or construction of combustion chambers to improve operation with positive ignition with separate admission of air and fuel into cylinder
    • F02B2023/106—Tumble flow, i.e. the axis of rotation of the main charge flow motion is horizontal
    • 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
    • F02B23/10—Other engines characterised by special shape or construction of combustion chambers to improve operation with positive ignition with separate admission of air and fuel into cylinder
    • F02B2023/106—Tumble flow, i.e. the axis of rotation of the main charge flow motion is horizontal
    • F02B2023/107—Reverse tumble flow, e.g. having substantially vertical intake ports
    • 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

L'invention concerne un piston (10) pour moteur, adapté à coulisser dans un cylindre (32) dont une des extrémités est obturée par la face interne (36) d'un élément de culasse (38), une commande d'allumage (40) s'étendant en saillie de ladite face interne (36), ledit piston (10) présentant une surface supérieure (16) dont une première partie (18) est rapprochée de ladite face interne (36) et une zone en creux (22) formant cavité est éloignée de ladite face interne (36) pour ménager une chambre de combustion (34), lorsque le piston (10) est rapproché dudit élément de culasse (38) ; ladite zone en creux (22) présentant deux portions sensiblement symétriques l'une de l'autre et qui se rejoignent au centre, lesdites portions symétriques formant deux demi-cavités (24, 26) adaptées à s'étendre à partir de ladite commande d'allumage (40).
FR0312483A 2003-10-24 2003-10-24 Piston pour chambre de combustion a haute vitesse de combustion. Expired - Lifetime FR2861431B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR0312483A FR2861431B1 (fr) 2003-10-24 2003-10-24 Piston pour chambre de combustion a haute vitesse de combustion.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0312483A FR2861431B1 (fr) 2003-10-24 2003-10-24 Piston pour chambre de combustion a haute vitesse de combustion.

Publications (2)

Publication Number Publication Date
FR2861431A1 FR2861431A1 (fr) 2005-04-29
FR2861431B1 true FR2861431B1 (fr) 2006-01-21

Family

ID=34400777

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0312483A Expired - Lifetime FR2861431B1 (fr) 2003-10-24 2003-10-24 Piston pour chambre de combustion a haute vitesse de combustion.

Country Status (1)

Country Link
FR (1) FR2861431B1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105888875A (zh) * 2015-02-17 2016-08-24 福特全球技术公司 用于增大压缩比的活塞顶
WO2022123589A1 (fr) * 2020-12-11 2022-06-16 Tvs Motor Company Limited Système et procédé de combustion contrôlée dans un moteur à injection directe

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2763995B1 (fr) 1997-05-29 1999-07-02 Renault Moteur a injection directe et allumage commande
DE19801607A1 (de) * 1998-01-17 1999-07-22 Audi Ag Brennkraftmaschine und Verfahren zur Gemischaufbereitung bei einer Brennkraftmaschine
DE19835563A1 (de) * 1998-08-06 2000-02-10 Volkswagen Ag Viertakt-Brennkraftmaschine mit Direkteinspritzung
DE10026322A1 (de) * 2000-05-26 2001-11-29 Bosch Gmbh Robert Brennstoffeinspritzsystem und Verfahren zur Brennstoffeinspritzung
DE10144683B4 (de) * 2001-09-11 2013-10-24 Volkswagen Ag Viertakt-Brennkraftmaschine mit Direkteinspritzung

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105888875A (zh) * 2015-02-17 2016-08-24 福特全球技术公司 用于增大压缩比的活塞顶
WO2022123589A1 (fr) * 2020-12-11 2022-06-16 Tvs Motor Company Limited Système et procédé de combustion contrôlée dans un moteur à injection directe

Also Published As

Publication number Publication date
FR2861431A1 (fr) 2005-04-29

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