FR2886683B1 - PISTON FOR DIRECT INJECTION ENGINE - Google Patents

PISTON FOR DIRECT INJECTION ENGINE

Info

Publication number
FR2886683B1
FR2886683B1 FR0505738A FR0505738A FR2886683B1 FR 2886683 B1 FR2886683 B1 FR 2886683B1 FR 0505738 A FR0505738 A FR 0505738A FR 0505738 A FR0505738 A FR 0505738A FR 2886683 B1 FR2886683 B1 FR 2886683B1
Authority
FR
France
Prior art keywords
piston
direct injection
injection engine
engine
direct
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
FR0505738A
Other languages
French (fr)
Other versions
FR2886683A1 (en
Inventor
Noboyuki Sakushima
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 FR0505738A priority Critical patent/FR2886683B1/en
Publication of FR2886683A1 publication Critical patent/FR2886683A1/en
Application granted granted Critical
Publication of FR2886683B1 publication Critical patent/FR2886683B1/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F02B23/0672—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
    • 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
    • F02B23/0603—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 at least part of the interior volume or the wall of the combustion space being made of material different from the surrounding piston part, e.g. combustion space formed within a ceramic part fixed to a metal 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
    • 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
    • F02B23/0651—Means or methods to improve the spray dispersion, evaporation or ignition the fuel spray impinging on reflecting surfaces or being specially guided throughout the combustion space
    • 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 
    • F02F3/28—Other pistons with specially-shaped head
    • F02F3/285—Other pistons with specially-shaped head the head being provided with an insert located in or on the combustion-gas-swept surface
    • 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)
  • Ceramic Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)
FR0505738A 2005-06-06 2005-06-06 PISTON FOR DIRECT INJECTION ENGINE Expired - Fee Related FR2886683B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR0505738A FR2886683B1 (en) 2005-06-06 2005-06-06 PISTON FOR DIRECT INJECTION ENGINE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0505738A FR2886683B1 (en) 2005-06-06 2005-06-06 PISTON FOR DIRECT INJECTION ENGINE

Publications (2)

Publication Number Publication Date
FR2886683A1 FR2886683A1 (en) 2006-12-08
FR2886683B1 true FR2886683B1 (en) 2007-09-14

Family

ID=35770228

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0505738A Expired - Fee Related FR2886683B1 (en) 2005-06-06 2005-06-06 PISTON FOR DIRECT INJECTION ENGINE

Country Status (1)

Country Link
FR (1) FR2886683B1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2223292B (en) * 1988-09-29 1992-04-15 T & N Technology Ltd Improvements in and relating to pistons
JPH03264725A (en) * 1990-03-14 1991-11-26 Yanmar Diesel Engine Co Ltd Subchamber type combustion chamber for internal combustion engine
JPH0711959A (en) * 1993-06-22 1995-01-13 Hino Motors Ltd Combustion chamber device for diesel engine
JPH08338248A (en) * 1995-06-09 1996-12-24 Toyota Autom Loom Works Ltd Seal structure of combustion chamber for diesel engine

Also Published As

Publication number Publication date
FR2886683A1 (en) 2006-12-08

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Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20090228