WO2007003817A3 - Moteur thermique pour vehicule automobile - Google Patents

Moteur thermique pour vehicule automobile Download PDF

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Publication number
WO2007003817A3
WO2007003817A3 PCT/FR2006/050441 FR2006050441W WO2007003817A3 WO 2007003817 A3 WO2007003817 A3 WO 2007003817A3 FR 2006050441 W FR2006050441 W FR 2006050441W WO 2007003817 A3 WO2007003817 A3 WO 2007003817A3
Authority
WO
WIPO (PCT)
Prior art keywords
cylinder
cylinder head
bowl
piston
motor vehicle
Prior art date
Application number
PCT/FR2006/050441
Other languages
English (en)
Other versions
WO2007003817A2 (fr
Inventor
Jacques Beroff
Original Assignee
Peugeot Citroen Automobiles Sa
Jacques Beroff
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, Jacques Beroff filed Critical Peugeot Citroen Automobiles Sa
Publication of WO2007003817A2 publication Critical patent/WO2007003817A2/fr
Publication of WO2007003817A3 publication Critical patent/WO2007003817A3/fr

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
    • F02B23/0618—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
    • F02B23/063—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 the combustion space in the piston interacting fluid dynamically with the cylinder head, the injector body or 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
    • 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
    • F02B23/0678—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
    • 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
    • F02B23/04—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being subdivided into two or more chambers
    • 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)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Dispersion Chemistry (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Abstract

Le moteur thermique est pourvu d'au moins un cylindre (2) présentant un axe central (X), d'une culasse (10) fermant le ou chaque cylindre (2), et d'un piston (6) mobile à l'intérieur du ou de chaque cylindre (2) selon l'axe central (X). Ce piston (6) est délimité vers la culasse (10) par une surface (14) au moins en partie concave, la partie concave formant un bol (16). Ladite surface (14) définit avec la culasse (10) et le cylindre (2) une chambre de combustion (20) de volume variable en fonction des mouvements du piston (6). Au moins un parmi le bol (16) ou la culasse (10) présente vers l'intérieur de la chambre de combustion un ou plusieurs reliefs (24) en saillie ou en creux par rapport à la surface moyenne du bol (16) ou de la culasse (10), présentant un sommet excentré par rapport à l'axe (X).
PCT/FR2006/050441 2005-05-16 2006-05-15 Moteur thermique pour vehicule automobile WO2007003817A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0504895A FR2885650B1 (fr) 2005-05-16 2005-05-16 Moteur thermique pour vehicule automobile
FR0504895 2005-05-16

Publications (2)

Publication Number Publication Date
WO2007003817A2 WO2007003817A2 (fr) 2007-01-11
WO2007003817A3 true WO2007003817A3 (fr) 2007-03-08

Family

ID=35589378

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR2006/050441 WO2007003817A2 (fr) 2005-05-16 2006-05-15 Moteur thermique pour vehicule automobile

Country Status (2)

Country Link
FR (1) FR2885650B1 (fr)
WO (1) WO2007003817A2 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8646428B2 (en) 2010-02-18 2014-02-11 Volvo Technology Corporation Piston positioned for reciprocal movement in a combustion engine cylinder
CN101907035B (zh) * 2010-07-30 2012-10-10 宁波大叶园林设备有限公司 内燃机函数波燃烧室及与点火装置的搭配
DE102015205349A1 (de) * 2015-03-24 2016-09-29 Mtu Friedrichshafen Gmbh Brennkraftmaschine und Kolben für eine Brennkraftmaschine
DE102015219895A1 (de) * 2015-10-14 2017-04-20 Ford Global Technologies, Llc Direkteinspritzende Brennkraftmaschine mit Kolben und Verfahren zur Herstellung eines Kolbens einer derartigen Brennkraftmaschine
US20170145951A1 (en) 2015-11-19 2017-05-25 Caterpillar Inc. Textured Piston
US10113503B2 (en) * 2016-10-11 2018-10-30 Caterpillar Inc. Combustion bowl of a piston for an engine
CN109162804A (zh) * 2018-10-22 2019-01-08 东风商用车有限公司 一种低热损柴油机燃烧室结构
CN113404585B (zh) * 2021-08-19 2021-12-21 潍柴动力股份有限公司 一种燃烧室与一种燃气发动机

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1741032A (en) * 1925-06-08 1929-12-24 Clarke C Minter Internal-combustion engine
US2100143A (en) * 1933-10-20 1937-11-23 Eclipse Aviat Corp Internal combustion engine
FR947072A (fr) * 1947-05-14 1949-06-22 Ford Moteur perfectionné à combustion interne
DE815580C (de) * 1950-04-15 1951-10-04 Willy Lehmann Brennraum fuer luftverdichtende, mit Selbstzuendung arbeitende Brennkraftmaschinen mit Strahleinspritzung
US3039445A (en) * 1958-07-16 1962-06-19 Rover Co Ltd Internal combustion engines of the liquid fuel injection compression ignition type
JPH0431650A (ja) * 1990-05-24 1992-02-03 Yanmar Diesel Engine Co Ltd 直接噴射式内燃機関
JPH04339130A (ja) * 1991-05-16 1992-11-26 Hino Motors Ltd デイ−ゼル機関のピストン頂部の燃焼室形状
JPH09236016A (ja) * 1995-12-28 1997-09-09 Isuzu Motors Ltd 直噴式ディーゼルエンジンの燃焼室

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1741032A (en) * 1925-06-08 1929-12-24 Clarke C Minter Internal-combustion engine
US2100143A (en) * 1933-10-20 1937-11-23 Eclipse Aviat Corp Internal combustion engine
FR947072A (fr) * 1947-05-14 1949-06-22 Ford Moteur perfectionné à combustion interne
DE815580C (de) * 1950-04-15 1951-10-04 Willy Lehmann Brennraum fuer luftverdichtende, mit Selbstzuendung arbeitende Brennkraftmaschinen mit Strahleinspritzung
US3039445A (en) * 1958-07-16 1962-06-19 Rover Co Ltd Internal combustion engines of the liquid fuel injection compression ignition type
JPH0431650A (ja) * 1990-05-24 1992-02-03 Yanmar Diesel Engine Co Ltd 直接噴射式内燃機関
JPH04339130A (ja) * 1991-05-16 1992-11-26 Hino Motors Ltd デイ−ゼル機関のピストン頂部の燃焼室形状
JPH09236016A (ja) * 1995-12-28 1997-09-09 Isuzu Motors Ltd 直噴式ディーゼルエンジンの燃焼室

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 016, no. 206 (M - 1248) 15 May 1992 (1992-05-15) *
PATENT ABSTRACTS OF JAPAN vol. 017, no. 191 (M - 1396) 14 April 1993 (1993-04-14) *

Also Published As

Publication number Publication date
FR2885650B1 (fr) 2010-12-24
WO2007003817A2 (fr) 2007-01-11
FR2885650A1 (fr) 2006-11-17

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