FR2716495B1 - Arrangements for improving the operation of direct injection diesel engines. - Google Patents

Arrangements for improving the operation of direct injection diesel engines.

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
French (fr)
Other versions
FR2716495A1 (en
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/en
Publication of FR2716495A1 publication Critical patent/FR2716495A1/en
Application granted granted Critical
Publication of FR2716495B1 publication Critical patent/FR2716495B1/en
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
FR9401988A 1994-02-22 1994-02-22 Arrangements for improving the operation of direct injection diesel engines. Expired - Fee Related FR2716495B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9401988A FR2716495B1 (en) 1994-02-22 1994-02-22 Arrangements for improving the operation of direct injection diesel engines.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9401988A FR2716495B1 (en) 1994-02-22 1994-02-22 Arrangements for improving the operation of direct injection diesel engines.

Publications (2)

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

Family

ID=9460307

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9401988A Expired - Fee Related FR2716495B1 (en) 1994-02-22 1994-02-22 Arrangements for improving the operation of direct injection diesel engines.

Country Status (1)

Country Link
FR (1) FR2716495B1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2844012B1 (en) * 2002-08-30 2006-04-07 Renault Sa COMBUSTION ENGINE COMPRISING DECAL INJECTION JETS FOLLOWING THE AXIS OF THE CYLINDER
FR2876421B1 (en) * 2004-10-07 2007-02-23 Renault Sas INTERNAL COMBUSTION ENGINE COMPRISING AN OPTIMIZED JET FUEL INJECTOR
FR2880385A1 (en) 2004-12-30 2006-07-07 Renault Sas Direct injection internal combustion engine e.g. diesel engine for motor vehicle, has combustion bowl with central boss, where axis of boss is inclined with respect to vertical axis to orient top of boss in direction of fuel injector
FR2895019A1 (en) * 2005-12-16 2007-06-22 Renault Sas Combustion chamber for e.g. common rail type direct injection diesel engine, has cylinder with piston having bowl with three recesses whose depth and orientation are defined, based on distance between nozzle and elevated part of bowl`s boss
FR2909725B1 (en) * 2006-12-12 2012-01-27 Inst Francais Du Petrole INTERNAL COMBUSTION ENGINE WITH DIRECT FUEL INJECTION WITH A PISTON PROVIDED WITH A BOWL LOADING A TOE, ESPECIALLY A DIESEL ENGINE.

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK37469C (en) * 1924-12-06 1927-05-16 Metalvarefabrikanterne Acro A Oil engine with an added combustion chamber.
US1781039A (en) * 1927-05-28 1930-11-11 Treiber Diesel Engine Corp Internal-combustion engine
FR786912A (en) * 1934-02-24 1935-09-14 Diesel engine with combustion chamber
AT149914B (en) * 1935-10-10 1937-06-10 Maschf Augsburg Nuernberg Ag Injection engine with a recess arranged in the piston.
DE1057816B (en) * 1956-09-08 1959-05-21 Daimler Benz Ag Four-stroke internal combustion engine
DE1226823B (en) * 1959-09-15 1966-10-13 Inst Francais Du Petrol Self-igniting internal combustion engine with air purging of the combustion chamber
IT1158942B (en) * 1983-04-11 1987-02-25 Fiat Auto Spa INTERNAL COMBUSTION ENGINE WITH DIRECT FUEL INJECTION
DE3920315A1 (en) * 1988-07-06 1990-01-11 Avl Verbrennungskraft Messtech Fuel injection nozzle

Also Published As

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

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Date Code Title Description
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Effective date: 20081031