FR2835287B1 - PISTON FOR INTERNAL COMBUSTION ENGINE AND ASSOCIATED COMBUSTION CHAMBER - Google Patents

PISTON FOR INTERNAL COMBUSTION ENGINE AND ASSOCIATED COMBUSTION CHAMBER

Info

Publication number
FR2835287B1
FR2835287B1 FR0200924A FR0200924A FR2835287B1 FR 2835287 B1 FR2835287 B1 FR 2835287B1 FR 0200924 A FR0200924 A FR 0200924A FR 0200924 A FR0200924 A FR 0200924A FR 2835287 B1 FR2835287 B1 FR 2835287B1
Authority
FR
France
Prior art keywords
piston
combustion engine
internal combustion
combustion chamber
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 - Fee Related
Application number
FR0200924A
Other languages
French (fr)
Other versions
FR2835287A1 (en
Inventor
Patrick Gastaldi
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 FR0200924A priority Critical patent/FR2835287B1/en
Publication of FR2835287A1 publication Critical patent/FR2835287A1/en
Application granted granted Critical
Publication of FR2835287B1 publication Critical patent/FR2835287B1/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
    • F02B23/0696—W-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 wall
    • 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
    • F02B23/0645—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
    • F02B23/0678—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
    • F02F2001/245—Arrangement of valve stems in cylinder heads the valve stems being orientated at an angle 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
FR0200924A 2002-01-25 2002-01-25 PISTON FOR INTERNAL COMBUSTION ENGINE AND ASSOCIATED COMBUSTION CHAMBER Expired - Fee Related FR2835287B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR0200924A FR2835287B1 (en) 2002-01-25 2002-01-25 PISTON FOR INTERNAL COMBUSTION ENGINE AND ASSOCIATED COMBUSTION CHAMBER

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0200924A FR2835287B1 (en) 2002-01-25 2002-01-25 PISTON FOR INTERNAL COMBUSTION ENGINE AND ASSOCIATED COMBUSTION CHAMBER

Publications (2)

Publication Number Publication Date
FR2835287A1 FR2835287A1 (en) 2003-08-01
FR2835287B1 true FR2835287B1 (en) 2005-07-01

Family

ID=27619658

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0200924A Expired - Fee Related FR2835287B1 (en) 2002-01-25 2002-01-25 PISTON FOR INTERNAL COMBUSTION ENGINE AND ASSOCIATED COMBUSTION CHAMBER

Country Status (1)

Country Link
FR (1) FR2835287B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10254594A1 (en) * 2002-11-22 2004-06-03 Volkswagen Ag Profiled top surface of piston for internal combustion engine with direct fuel injection has double depression under injector and has raised rim with peak surrounding outer depression
DE102011085434A1 (en) * 2011-10-28 2013-05-02 Ks Kolbenschmidt Gmbh Piston and process for its production

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1081692A (en) * 1964-01-31 1967-08-31 Giles John George Improvements in or relating to internal combustion engine combustion chambers
JPS578314A (en) * 1980-06-16 1982-01-16 Mitsubishi Motors Corp Fuel injection method and combustion chamber of direct injection diesel engine
DE3742574C1 (en) * 1987-12-16 1989-03-02 Mtu Friedrichshafen Gmbh Internal-combustion engine with a combustion space in the piston head
DE19649052A1 (en) * 1996-11-27 1998-05-28 Mtu Friedrichshafen Gmbh Diesel engine with direct injection and a piston recess
JPH11117748A (en) * 1997-10-13 1999-04-27 Isuzu Motors Ltd Combustion chamber for direct injection type diesel engine

Also Published As

Publication number Publication date
FR2835287A1 (en) 2003-08-01

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Legal Events

Date Code Title Description
TP Transmission of property
PLFP Fee payment

Year of fee payment: 14

PLFP Fee payment

Year of fee payment: 15

PLFP Fee payment

Year of fee payment: 16

ST Notification of lapse

Effective date: 20180928