FR2947009B1 - Piston pour chambre de combustion de moteur diesel. - Google Patents

Piston pour chambre de combustion de moteur diesel.

Info

Publication number
FR2947009B1
FR2947009B1 FR0954274A FR0954274A FR2947009B1 FR 2947009 B1 FR2947009 B1 FR 2947009B1 FR 0954274 A FR0954274 A FR 0954274A FR 0954274 A FR0954274 A FR 0954274A FR 2947009 B1 FR2947009 B1 FR 2947009B1
Authority
FR
France
Prior art keywords
piston
combustion chamber
diesel engine
engine combustion
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
FR0954274A
Other languages
English (en)
Other versions
FR2947009A1 (fr
Inventor
Ludovic Thobois
Sebastien Leonard
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.)
PSA Automobiles SA
Original Assignee
Peugeot Citroen Automobiles 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 Peugeot Citroen Automobiles SA filed Critical Peugeot Citroen Automobiles SA
Priority to FR0954274A priority Critical patent/FR2947009B1/fr
Publication of FR2947009A1 publication Critical patent/FR2947009A1/fr
Application granted granted Critical
Publication of FR2947009B1 publication Critical patent/FR2947009B1/fr
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
    • F02B23/0645—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
    • 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
    • F02B23/0678—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
    • F02B23/0693—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 the combustion space consisting of step-wise widened multiple zones of different depth
    • 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)
  • Dispersion Chemistry (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)
FR0954274A 2009-06-23 2009-06-23 Piston pour chambre de combustion de moteur diesel. Expired - Fee Related FR2947009B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR0954274A FR2947009B1 (fr) 2009-06-23 2009-06-23 Piston pour chambre de combustion de moteur diesel.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0954274A FR2947009B1 (fr) 2009-06-23 2009-06-23 Piston pour chambre de combustion de moteur diesel.

Publications (2)

Publication Number Publication Date
FR2947009A1 FR2947009A1 (fr) 2010-12-24
FR2947009B1 true FR2947009B1 (fr) 2014-05-09

Family

ID=41566060

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0954274A Expired - Fee Related FR2947009B1 (fr) 2009-06-23 2009-06-23 Piston pour chambre de combustion de moteur diesel.

Country Status (1)

Country Link
FR (1) FR2947009B1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105275584A (zh) * 2014-06-09 2016-01-27 马自达汽车株式会社 柴油发动机的燃烧室结构

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9328693B2 (en) 2013-07-17 2016-05-03 Electro-Motive Diesel, Inc. Piston, engine and operating method for reduced production of particulate matter
FR3060059B1 (fr) * 2016-12-12 2019-08-09 Peugeot Citroen Automobiles Sa Piston de moteur a combustion interne
CN109519299A (zh) * 2018-12-29 2019-03-26 昆山三动力有限公司 活塞、内燃机及动力机械装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS599734B2 (ja) * 1978-12-05 1984-03-05 日野自動車株式会社 直接噴射式デイ−ゼルエンジンのピストン
JPH0571347A (ja) * 1991-09-09 1993-03-23 Yanmar Diesel Engine Co Ltd 直接噴射式デイーゼル機関の燃焼室
JP3613054B2 (ja) * 1999-02-15 2005-01-26 三菱自動車エンジニアリング株式会社 直噴エンジン
JP4456968B2 (ja) * 2003-12-01 2010-04-28 株式会社小松製作所 燃料直接噴射式ディーゼルエンジン
DE102006002672A1 (de) * 2006-01-19 2007-07-26 Fev Motorentechnik Gmbh Brennraumanordnung
JP5196637B2 (ja) * 2007-09-21 2013-05-15 ヤンマー株式会社 ディーゼルエンジン

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105275584A (zh) * 2014-06-09 2016-01-27 马自达汽车株式会社 柴油发动机的燃烧室结构

Also Published As

Publication number Publication date
FR2947009A1 (fr) 2010-12-24

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Effective date: 20180312

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Owner name: PEUGEOT CITROEN AUTOMOBILES SA, FR

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Year of fee payment: 13

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Effective date: 20230205