CA2454719A1 - Chambre de combustion - Google Patents

Chambre de combustion Download PDF

Info

Publication number
CA2454719A1
CA2454719A1 CA002454719A CA2454719A CA2454719A1 CA 2454719 A1 CA2454719 A1 CA 2454719A1 CA 002454719 A CA002454719 A CA 002454719A CA 2454719 A CA2454719 A CA 2454719A CA 2454719 A1 CA2454719 A1 CA 2454719A1
Authority
CA
Canada
Prior art keywords
combustion chamber
piston
center portion
spherical
origin
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.)
Abandoned
Application number
CA002454719A
Other languages
English (en)
Inventor
Zhengbai Liu
Xinqun Gui
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.)
International Engine Intellectual Property Co LLC
Original Assignee
Individual
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
Priority claimed from US09/911,265 external-priority patent/US6536404B2/en
Priority claimed from US09/922,972 external-priority patent/US6637402B2/en
Priority claimed from US09/933,407 external-priority patent/US6513476B1/en
Priority claimed from US10/057,545 external-priority patent/US6732702B2/en
Priority claimed from US10/060,663 external-priority patent/US6601561B1/en
Application filed by Individual filed Critical Individual
Publication of CA2454719A1 publication Critical patent/CA2454719A1/fr
Abandoned 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
    • F02B23/0672—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
    • F02B31/00—Modifying induction systems for imparting a rotation to the charge in the cylinder
    • 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
    • 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)
  • Pistons, Piston Rings, And Cylinders (AREA)

Abstract

La présente invention se rapporte à un ensemble chambre de combustion destiné à un moteur diesel et comprenant une chambre de combustion (14) définie dans la couronne (12) d'un piston (10), ledit piston (10) présentant un axe central (16, 18, 518, 524). Cette chambre de combustion (14) possède une partie centrale qui définit un montant et qui est elle-même définie au moins en partie par une portion de sphère, ladite sphère ayant un rayon dont l'origine se trouve sur l'axe central du piston (16, 18, 518, 524). Cette chambre de combustion (14) possède par ailleurs une pluralité de surfaces incurvées ayant des transitions tangentielles douces entre des surfaces lisses adjacentes, lesdites surfaces lisses incluant la partie centrale sphérique et au moins une surface annulaire, ladite chambre de combustion (14) étant symétrique par rapport à un axe longitudinal de chambre de combustion (16, 216, 316, 416). La présente invention se rapporte également à un piston (10) contenant la chambre de combustion ci-dessus décrite (14) ainsi qu'à un procédé de formation de ladite chambre de combustion (14).
CA002454719A 2001-07-23 2002-07-18 Chambre de combustion Abandoned CA2454719A1 (fr)

Applications Claiming Priority (11)

Application Number Priority Date Filing Date Title
US09/911,265 US6536404B2 (en) 2001-07-23 2001-07-23 Piston having combustion chamber defined in the crown
US09/911,265 2001-07-23
US09/922,972 2001-08-06
US09/922,972 US6637402B2 (en) 2001-08-06 2001-08-06 Piston having combustion chamber defined in the crown
US09/933,407 2001-08-20
US09/933,407 US6513476B1 (en) 2001-08-20 2001-08-20 Piston having combustion chamber defined in the crown
US10/057,545 US6732702B2 (en) 2002-01-23 2002-01-23 Combustion chamber
US10/057,545 2002-01-23
US10/060,663 2002-01-30
US10/060,663 US6601561B1 (en) 2002-01-30 2002-01-30 Combustion chamber
PCT/US2002/022765 WO2003010423A1 (fr) 2001-07-23 2002-07-18 Chambre de combustion

Publications (1)

Publication Number Publication Date
CA2454719A1 true CA2454719A1 (fr) 2003-02-06

Family

ID=27535398

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002454719A Abandoned CA2454719A1 (fr) 2001-07-23 2002-07-18 Chambre de combustion

Country Status (8)

Country Link
EP (1) EP1409858A4 (fr)
JP (1) JP2004536992A (fr)
KR (1) KR20040021645A (fr)
CN (1) CN1302200C (fr)
BR (1) BR0211398A (fr)
CA (1) CA2454719A1 (fr)
MX (1) MXPA04000642A (fr)
WO (1) WO2003010423A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005058130A1 (de) * 2005-11-30 2007-06-06 Valeo Schalter Und Sensoren Gmbh Warnsystem für ein Kraftfahrzeug
US7389764B1 (en) * 2007-01-23 2008-06-24 Gm Global Technology Operations, Inc. Low emissions diesel piston
EP2003303B1 (fr) * 2007-06-15 2013-03-13 Ford Global Technologies, LLC Piston doté d'une cavité pour un moteur à combustion interne et procédé destiné à la formation d'un mélange en utilisant un dispositif de vaporisation et un tel piston
US7431012B1 (en) * 2007-10-01 2008-10-07 General Electric Company Diesel combustion system with re-entrant piston bowl
JP5338268B2 (ja) * 2008-11-18 2013-11-13 マツダ株式会社 ディーゼルエンジンの燃焼室構造
US8813713B2 (en) * 2010-12-22 2014-08-26 Caterpillar Inc. Piston with cylindrical wall
US9695723B2 (en) 2014-01-15 2017-07-04 General Electric Company Combustion system including a piston crown and fuel injector
JP7545795B2 (ja) * 2019-07-05 2024-09-05 三菱重工エンジン＆ターボチャージャ株式会社 内燃機関のピストンおよび内燃機関
CN112324556B (zh) * 2020-11-09 2022-01-25 赵伟 一种直喷柴油机唇口射流燃烧系统
CN112432204B (zh) * 2020-12-04 2022-04-22 中国人民解放军国防科技大学 一种能够内流减阻的凹腔结构及超燃冲压发动机

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB289273A (en) * 1927-06-07 1928-04-26 Lorenz Konrad Braren Improvements in or relating to internal combustion engines
CH420723A (de) * 1963-02-28 1966-09-15 Tatra Np Einspritzbrennkraftmaschine mit einer Mehrlochdüse
BR8207821A (pt) * 1981-08-13 1983-07-19 Massey Ferguson Perkins Ltd Motor de combusta interna
JP2727808B2 (ja) * 1991-08-23 1998-03-18 いすゞ自動車株式会社 直噴式内燃機関の燃焼室
DE4326978A1 (de) * 1993-08-11 1995-02-16 Alcan Gmbh Kolben für Brennkraftmaschinen, insbesondere für Dieselmotoren
JP3538916B2 (ja) * 1994-11-07 2004-06-14 マツダ株式会社 直噴式エンジンの燃焼室構造
DE19707873A1 (de) * 1997-02-27 1998-09-10 Hatz Motoren Einspritzvorrichtung und Verbrennungsverfahren für eine Brennkraftmaschine
JPH11182311A (ja) * 1997-12-16 1999-07-06 Mitsubishi Motors Corp 蓄圧式燃料噴射装置
JPH11210467A (ja) * 1998-01-23 1999-08-03 Kubota Corp ディーゼルエンジンのリエントラント型燃焼室
JP3751462B2 (ja) * 1998-03-27 2006-03-01 株式会社豊田中央研究所 直接噴射式ディーゼル機関
JP2000274247A (ja) * 1999-03-19 2000-10-03 Toyota Motor Corp ディーゼルエンジン
JP4158271B2 (ja) * 1999-03-23 2008-10-01 マツダ株式会社 エンジンのピストン構造
JP2000352316A (ja) * 1999-06-09 2000-12-19 Toyota Central Res & Dev Lab Inc 直接噴射式圧縮着火機関の燃焼室
CN2388358Y (zh) * 1999-07-23 2000-07-19 广西玉柴机器股份有限公司 Yc6112zlq柴油机活塞燃烧室
JP4682452B2 (ja) * 2001-06-06 2011-05-11 マツダ株式会社 ディーゼルエンジンの燃料噴射装置

Also Published As

Publication number Publication date
WO2003010423A1 (fr) 2003-02-06
CN1556894A (zh) 2004-12-22
JP2004536992A (ja) 2004-12-09
EP1409858A4 (fr) 2004-10-06
BR0211398A (pt) 2004-08-17
KR20040021645A (ko) 2004-03-10
EP1409858A1 (fr) 2004-04-21
CN1302200C (zh) 2007-02-28
MXPA04000642A (es) 2004-04-21

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Legal Events

Date Code Title Description
EEER Examination request
FZDE Discontinued