FR2818318B1 - PISTON COMPRISING GROOVES WITH A VIEW TO PRODUCING TURBULENCE IN THE INTAKE GASES - Google Patents

PISTON COMPRISING GROOVES WITH A VIEW TO PRODUCING TURBULENCE IN THE INTAKE GASES

Info

Publication number
FR2818318B1
FR2818318B1 FR0016558A FR0016558A FR2818318B1 FR 2818318 B1 FR2818318 B1 FR 2818318B1 FR 0016558 A FR0016558 A FR 0016558A FR 0016558 A FR0016558 A FR 0016558A FR 2818318 B1 FR2818318 B1 FR 2818318B1
Authority
FR
France
Prior art keywords
piston
grooves
view
intake gases
producing turbulence
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
FR0016558A
Other languages
French (fr)
Other versions
FR2818318A1 (en
Inventor
Eric Brun
Bertrand Fasolo
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 FR0016558A priority Critical patent/FR2818318B1/en
Publication of FR2818318A1 publication Critical patent/FR2818318A1/en
Application granted granted Critical
Publication of FR2818318B1 publication Critical patent/FR2818318B1/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
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/002—Integrally formed cylinders and cylinder heads
    • 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
    • F02B23/0624—Swirl 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
    • F02B23/0618—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
    • F02B23/0627—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 having additional bores or grooves machined into the piston for guiding air or charge flow to the piston bowl
    • 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
    • F02B23/0645—Details related to the fuel injector or the fuel spray
    • F02B23/0648—Means or methods to improve the spray dispersion, evaporation or ignition
    • 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
    • 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
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B31/00—Modifying induction systems for imparting a rotation to the charge in the cylinder
    • 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)
FR0016558A 2000-12-19 2000-12-19 PISTON COMPRISING GROOVES WITH A VIEW TO PRODUCING TURBULENCE IN THE INTAKE GASES Expired - Fee Related FR2818318B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR0016558A FR2818318B1 (en) 2000-12-19 2000-12-19 PISTON COMPRISING GROOVES WITH A VIEW TO PRODUCING TURBULENCE IN THE INTAKE GASES

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0016558A FR2818318B1 (en) 2000-12-19 2000-12-19 PISTON COMPRISING GROOVES WITH A VIEW TO PRODUCING TURBULENCE IN THE INTAKE GASES

Publications (2)

Publication Number Publication Date
FR2818318A1 FR2818318A1 (en) 2002-06-21
FR2818318B1 true FR2818318B1 (en) 2003-03-21

Family

ID=8857845

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0016558A Expired - Fee Related FR2818318B1 (en) 2000-12-19 2000-12-19 PISTON COMPRISING GROOVES WITH A VIEW TO PRODUCING TURBULENCE IN THE INTAKE GASES

Country Status (1)

Country Link
FR (1) FR2818318B1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2880384B1 (en) * 2004-12-30 2007-04-13 Renault Sas INTERNAL COMBUSTION ENGINE COMPRISING A PISTON WHERE THE BOTTLE OF THE COMBUSTION BOWL IS EQUIPPED WITH AN EVIDED AREA
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
US11293374B2 (en) * 2020-07-31 2022-04-05 Fev Gmbh Piston bowl geometries for internal combustion engines

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3742574C1 (en) * 1987-12-16 1989-03-02 Mtu Friedrichshafen Gmbh Internal-combustion engine with a combustion space in the piston head
DE4127617C1 (en) * 1991-08-21 1993-04-15 Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De
JPH05141246A (en) * 1991-11-18 1993-06-08 Hino Motors Ltd Piston for direct injection diesel engine
FR2776754B1 (en) 1998-03-31 2000-05-05 Renault COMBUSTION CHAMBER AND INTERNAL COMBUSTION ENGINE

Also Published As

Publication number Publication date
FR2818318A1 (en) 2002-06-21

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse

Effective date: 20060831