FR2716495B1 - Dispositions permettant d'améliorer le fonctionnement des moteurs Diesel à injection directe. - Google Patents

Dispositions permettant d'améliorer le fonctionnement des moteurs Diesel à injection directe.

Info

Publication number
FR2716495B1
FR2716495B1 FR9401988A FR9401988A FR2716495B1 FR 2716495 B1 FR2716495 B1 FR 2716495B1 FR 9401988 A FR9401988 A FR 9401988A FR 9401988 A FR9401988 A FR 9401988A FR 2716495 B1 FR2716495 B1 FR 2716495B1
Authority
FR
France
Prior art keywords
arrangements
improving
direct injection
diesel engines
injection diesel
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 - Fee Related
Application number
FR9401988A
Other languages
English (en)
Other versions
FR2716495A1 (fr
Inventor
Alain Delage
Patrice Marez
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.)
Automobiles Peugeot SA
Automobiles Citroen SA
Original Assignee
Automobiles Peugeot SA
Automobiles Citroen SA
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 Automobiles Peugeot SA, Automobiles Citroen SA filed Critical Automobiles Peugeot SA
Priority to FR9401988A priority Critical patent/FR2716495B1/fr
Publication of FR2716495A1 publication Critical patent/FR2716495A1/fr
Application granted granted Critical
Publication of FR2716495B1 publication Critical patent/FR2716495B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • F02B23/0645—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
    • F02B23/0645—Details related to the fuel injector or the fuel spray
    • F02B23/066—Details related to the fuel injector or the fuel spray the injector being located substantially off-set from the cylinder centre axis
    • 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
    • F02B23/0672—Omega-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 center axis
    • 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
    • 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
    • F02B23/0621—Squish 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
    • F02B23/0654—Thermal treatments, e.g. with heating elements or local cooling
    • F02B23/0657—Thermal treatments, e.g. with heating elements or local cooling the spray interacting with one or more glow plugs
    • 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
    • F02B23/069—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 characterised by its eccentricity from the cylinder axis
    • 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
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression 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 
    • F02F1/24—Cylinder heads
    • F02F2001/244—Arrangement of valve stems in cylinder heads
    • F02F2001/247—Arrangement of valve stems in cylinder heads the valve stems being orientated in parallel with the cylinder axis
    • 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)
FR9401988A 1994-02-22 1994-02-22 Dispositions permettant d'améliorer le fonctionnement des moteurs Diesel à injection directe. Expired - Fee Related FR2716495B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9401988A FR2716495B1 (fr) 1994-02-22 1994-02-22 Dispositions permettant d'améliorer le fonctionnement des moteurs Diesel à injection directe.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9401988A FR2716495B1 (fr) 1994-02-22 1994-02-22 Dispositions permettant d'améliorer le fonctionnement des moteurs Diesel à injection directe.

Publications (2)

Publication Number Publication Date
FR2716495A1 FR2716495A1 (fr) 1995-08-25
FR2716495B1 true FR2716495B1 (fr) 1996-05-03

Family

ID=9460307

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9401988A Expired - Fee Related FR2716495B1 (fr) 1994-02-22 1994-02-22 Dispositions permettant d'améliorer le fonctionnement des moteurs Diesel à injection directe.

Country Status (1)

Country Link
FR (1) FR2716495B1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2844012B1 (fr) * 2002-08-30 2006-04-07 Renault Sa Moteur a combustion comportant des jets d'injection decales suivant l'axe du cylindre
FR2876421B1 (fr) * 2004-10-07 2007-02-23 Renault Sas Moteur a combustion interne comportant un injecteur de carburant a jets optimises
FR2880385A1 (fr) 2004-12-30 2006-07-07 Renault Sas Moteur a combustion interne comportant un piston a bol de combustion muni d'un bossage incline
FR2895019A1 (fr) * 2005-12-16 2007-06-22 Renault Sas Bol de piston pour moteur diesel a injection directe
FR2909725B1 (fr) * 2006-12-12 2012-01-27 Inst Francais Du Petrole Moteur a combustion interne a injection directe de carburant avec un piston muni d'un bol logeant un teton,en particulier moteur de type diesel.

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK37469C (da) * 1924-12-06 1927-05-16 Metalvarefabrikanterne Acro A Oliemotor med et tilsat Forbrændingsrum.
US1781039A (en) * 1927-05-28 1930-11-11 Treiber Diesel Engine Corp Internal-combustion engine
FR786912A (fr) * 1934-02-24 1935-09-14 Moteur diesel avec chambre de combustion
AT149914B (de) * 1935-10-10 1937-06-10 Maschf Augsburg Nuernberg Ag Einspritzbrennkraftmaschine mit im Kolben angeordneter Vertiefung.
DE1057816B (de) * 1956-09-08 1959-05-21 Daimler Benz Ag Viertakt-Einspritzbrennkraftmaschine
DE1226823B (de) * 1959-09-15 1966-10-13 Inst Francais Du Petrol Selbstzuendende Einspritzbrennkraftmaschine mit Spuelung des Brennraumes durch Luft
IT1158942B (it) * 1983-04-11 1987-02-25 Fiat Auto Spa Motore a combustione interna ad iniezione diretta del combustibile
DE3920315A1 (de) * 1988-07-06 1990-01-11 Avl Verbrennungskraft Messtech Kraftstoffeinspritzduese

Also Published As

Publication number Publication date
FR2716495A1 (fr) 1995-08-25

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Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20081031