EP1733132B1 - Culasse refroidie par eau pour un moteur a combustion interne multicylindre - Google Patents

Culasse refroidie par eau pour un moteur a combustion interne multicylindre Download PDF

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Publication number
EP1733132B1
EP1733132B1 EP05726208A EP05726208A EP1733132B1 EP 1733132 B1 EP1733132 B1 EP 1733132B1 EP 05726208 A EP05726208 A EP 05726208A EP 05726208 A EP05726208 A EP 05726208A EP 1733132 B1 EP1733132 B1 EP 1733132B1
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EP
European Patent Office
Prior art keywords
water
cylinder
cylinder head
cooling
combustion
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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.)
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EP05726208A
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German (de)
English (en)
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EP1733132A1 (fr
Inventor
Michael Paul
Frank Ickinger
Albrecht Reustle
Armin Schweizer
Christian Wendl
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Dr Ing HCF Porsche AG
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Dr Ing HCF Porsche AG
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Publication of EP1733132A1 publication Critical patent/EP1733132A1/fr
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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 
    • F02F1/24—Cylinder heads
    • F02F1/26—Cylinder heads having cooling means
    • F02F1/36—Cylinder heads having cooling means for liquid cooling
    • F02F1/40—Cylinder heads having cooling means for liquid cooling cylinder heads with means for directing, guiding, or distributing liquid stream 
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P3/00—Liquid cooling
    • F01P3/12—Arrangements for cooling other engine or machine parts
    • F01P3/16—Arrangements for cooling other engine or machine parts for cooling fuel injectors or sparking-plugs

Definitions

  • the invention relates to a water-cooled cylinder head for a multi-cylinder internal combustion engine according to the features of the preamble of claim 1, such as DE 4116943 .
  • US 4699092 or US 20020124815 are features of the preamble of claim 1, such as DE 4116943 .
  • the object of the invention is therefore to overcome the aforementioned disadvantages and to improve the cooling in the highly stressed areas of the cylinder head housing.
  • the temperature peaks can be effectively reduced in this area.
  • high-temperature cylinder head alloys such as AICu5Ni1,5CoSbZr lower cost standard alloys, such as AlSi6Cu4 or AlSi7Mg.
  • the knocking tendency of the engine is reduced by the temperature reduction, so that consumption advantages or a corresponding power increase can be achieved on account of the ignition angle improvements.
  • An additional cooling channel in the form of an injector bore ensures that the common annulus section is supplied directly with cooling water.
  • a further improvement or optimization of the cooling of the cylinder head housing is achieved if the water jacket has a substantially uniform wall thickness in the range of the combustion chamber dome and the inlet and outlet ducts monitored by the valves between 3 and 7 mm. Due to the constant water jacket thickness higher flow velocities of the cooling water can be achieved and thus the heat transfer can be improved.
  • a need-based cooling is ensured by a main cooling flow between the two exhaust valves in the direction of the receiving opening for the spark plug, while outside of the two exhaust valves, two secondary cooling streams are formed.
  • FIGS. 1 to 4 is the geometry of a water jacket, hereinafter referred to as cylinder head cooling chamber 2, shown, which is integrated in a cylinder head housing 4 of a multi-cylinder internal combustion engine.
  • the cylinder head cooling space 2 of each cylinder is supplied with cooling water via a central inflow opening 6 in the cylinder head housing 4.
  • a delta-shaped discharge opening 8 is provided, via which the coolant heated by the cylinder head housing 4 flows to the suction side of the water pump, not shown, of the internal combustion engine.
  • two recesses 10 and 12 for the two exhaust valves or exhaust ports of the internal combustion engine can be seen;
  • a centrally provided in the cylinder head cooling chamber 2 opening 14 forms the receptacle or the dome for a spark plug (not shown) of the relevant cylinder.
  • each two web-shaped recesses 16 and 18 can be seen, in the cylinder head housing 4 as a positive to form two the water jacket 2 by cross webs, with the help of which formed in the cylinder head housing 4 Brennraumkalotte 20 is suspended or supported ,
  • the over the arc length s (see Fig. 2 ) extending central annular space portion 32 has a combustion chamber trough 20 toward substantially constant height, so that at least in this area, the wall thickness a of the combustion chamber cap 36 is uniform and in the vertical direction is brought close to the combustion chamber 36.
  • the wall thickness a of the combustion chamber dome 36 is reduced to between 5 and 10 mm in the region of the annular space section 32. How out Fig. 5 As can be seen, a portion 14a of the receiving opening 14 for the spark plug is reduced in diameter over the overlying portion 14b.
  • the spark plug thread is introduced, whose length has been deliberately chosen so that the central annular space portion 32 and the two adjacent left and right adjacent annular space portions 32 'with their arc lengths s' in the vertical direction exclusively at the height of the reduced thread diameter (section 14a) so that the cooling water jacket or the cylinder head 2 brought close to the spark plug is.
  • cooling water of the cylinder head cooling chamber 2 is formed in the region of the Brennraumkalotte 36 and the inlet and outlet valves with a substantially uniform thickness or thickness, which is between 3 and 7 mm.
  • the temperature peaks caused in the region due to the high heat input to the spark plug and the valve seat rings can be effectively reduced.
  • the flow cross-sections on the inflow side of the cylinder head cooling chamber 2 are formed so that the cooling water flow is divided into a main cooling flow Q 1 , Q 2 and Q 3 and two secondary cooling flows Q 4 and Q 5 .
  • the main cooling flow Q 1 , Q 2 and Q 3 is guided between the two exhaust valves (recess 10, 12) in the direction of the spark plug dome (central opening 14), while in the respective left and right edge region of the cylinder head cooling chamber 2, the secondary cooling flows Q 4 and Q 5 run ,
  • the already mentioned above recesses 23, 24 form constrictions for the two secondary cooling streams Q 4 and Q 5 , so that the entire cooling water flow, for example, is divided so that 50% of them via the main cooling flow Q 1 , Q 2 and Q 3 between the two exhaust valves are guided in the direction of the spark plug, while each 25% thereof are supplied via the secondary cooling streams Q 4 and Q 5 to the left and the right edge region of the cylinder head cooling chamber.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Abstract

L'invention concerne une culasse refroidie par eau, destinée à un moteur à combustion interne multicylindre et comprenant deux soupapes d'admission et d'échappement par cylindre, ainsi qu'une chambre de refroidissement de culasse (2) (chemise d'eau) intégrée dans le carter de culasse (4), munie d'orifices d'entrée et de sortie (6, 8) pour l'agent réfrigérant et s'étendant au-dessus d'une calotte (36) formant la cavité de chambre de combustion (20). Autour d'un orifice de réception (14) placé de manière centrale dans le carter de culasse (4) et destiné à une bougie d'allumage et autour des deux soupapes d'échappement sont réalisés, au moins par endroits, des espaces de chemise d'eau (26, 28, 30) qui sont reliés entre eux au moyen d'un segment d'espace annulaire commun (32). Selon l'invention, au moins le segment d'espace annulaire de chemise d'eau commun (32) présente, en direction de la cavité de chambre de combustion (20), une hauteur pratiquement constante, de sorte que, dans cette zone au moins, l'épaisseur de paroi (a) de la calotte de chambre de combustion (36) est uniforme et s'étend jusqu'au ras de la cavité de chambre de combustion (20).

Claims (6)

  1. Culasse refroidie par eau pour un moteur à combustion interne multicylindre avec deux soupapes d'admission et deux soupapes d'échappement par cylindre, une chemise d'eau sous la forme d'une chambre de refroidissement de culasse (2) intégrée dans l'enceinte de culasse (4) avec des orifices d'entrée et de sortie (6, 8) pour l'agent de refroidissement, et qui s'étend au-dessus d'une calotte (36) formant la cuvette (20) de la chambre de combustion, dans laquelle des chambres de chemise d'eau au moins locales (26, 28, 30) sont formées autour d'une ouverture de réception (14) disposée au centre dans l'enceinte de culasse (4) pour une bougie d'allumage et autour des deux soupapes d'échappement et sont reliées les unes aux autres par une portion de chambre annulaire commune (32), caractérisée en ce que
    - au moins la portion de chambre annulaire commune (32) de la chemise d'eau présente une hauteur restant constante en direction de la cuvette (20) de la chambre de combustion et est menée jusqu'à la cuvette (20) de la chambre de combustion, de telle manière que
    - l'épaisseur de paroi (a) de la calotte (36) de la chambre de combustion soit réduite entre 5 et 11 mm dans la région de la portion de chambre annulaire (32), et dans laquelle
    - l'épaisseur de paroi (a) de la calotte (36) de la chambre de combustion est formée d'une seule pièce au moins dans la région de la portion de chambre annulaire (32) de la chemise d'eau.
  2. Culasse refroidie par eau selon la revendication 1, caractérisée en ce que le diamètre de l'ouverture de réception (14) pour la bougie d'allumage est réduit à la hauteur de la portion de chambre annulaire commune (32) .
  3. Culasse refroidie par eau selon l'une quelconque des revendications précédentes, caractérisée en ce qu'il est prévu en plus, sur le côté d'arrivée de l'eau de refroidissement, un canal de refroidissement (34) qui alimente la portion de chambre annulaire commune (32) de manière directe en plus avec de l'eau de refroidissement.
  4. Culasse refroidie par eau selon l'une quelconque des revendications précédentes, caractérisée en ce que la chemise d'eau présente, dans la région de la calotte (36) de la chambre de combustion et des canaux d'entrée et de sortie, une épaisseur essentiellement unitaire, qui vaut entre 3 et 7 mm.
  5. Culasse refroidie par eau selon l'une quelconque des revendications précédentes, caractérisée en ce que, sur le côté d'entrée (orifice d'entrée 6) dans la chambre de refroidissement (2) de la culasse, un courant de refroidissement principal (Q1, Q2, Q3) circule entre les deux soupapes d'échappement (évidement 10, 12) en direction de l'ouverture de réception (14) pour la bougie d'allumage, tandis qu'il est prévu deux courants de refroidissement auxiliaires (Q4, Q5) sur les deux zones de bord de la chambre de refroidissement (2) de la culasse.
  6. Culasse refroidie par eau selon la revendication 5, caractérisée en ce qu'il est prévu dans les deux zones de bord de la chambre de refroidissement (2) de la culasse des restrictions locales destinées à étrangler les deux courants de refroidissement auxiliaires (Q4, Q5).
EP05726208A 2004-03-27 2005-03-15 Culasse refroidie par eau pour un moteur a combustion interne multicylindre Active EP1733132B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004015134A DE102004015134A1 (de) 2004-03-27 2004-03-27 Wassergekühlter Zylinderkopf für eine mehrzylindrige Brennkraftmaschine
PCT/EP2005/002723 WO2005093242A1 (fr) 2004-03-27 2005-03-15 Culasse refroidie par eau pour un moteur a combustion interne multicylindre

Publications (2)

Publication Number Publication Date
EP1733132A1 EP1733132A1 (fr) 2006-12-20
EP1733132B1 true EP1733132B1 (fr) 2011-11-02

Family

ID=34963179

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05726208A Active EP1733132B1 (fr) 2004-03-27 2005-03-15 Culasse refroidie par eau pour un moteur a combustion interne multicylindre

Country Status (5)

Country Link
US (1) US7128029B2 (fr)
EP (1) EP1733132B1 (fr)
JP (1) JP2007530851A (fr)
DE (1) DE102004015134A1 (fr)
WO (1) WO2005093242A1 (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005050510A1 (de) * 2005-10-21 2007-04-26 Bayerische Motoren Werke Ag Zylinderkopf für eine wassergekühlte Brennkraftmaschine
DE102007062347B4 (de) * 2007-12-22 2024-02-29 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Kühlanordnung für einen Zylinderkopf einer Brennkraftmaschine
JP5146195B2 (ja) * 2008-08-20 2013-02-20 トヨタ自動車株式会社 Ｖ型内燃機関の冷却装置及びｖ型内燃機関
JP5330088B2 (ja) * 2009-05-15 2013-10-30 本田技研工業株式会社 シリンダヘッドのウオータジャケット構造
AT506474B1 (de) * 2009-06-15 2010-12-15 Avl List Gmbh Zylinderkopf für eine brennkraftmaschine
CN101956627B (zh) * 2010-06-08 2012-10-03 东风汽车公司 具有强化冷却“鼻梁区”高温部位的汽油机气缸盖
DE102010036392B4 (de) 2010-07-14 2021-10-07 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Flüssigkeitsgekühlter Zylinderkopf für eine Brennkraftmaschine
CN103835830B (zh) * 2012-11-21 2016-06-01 重庆长安汽车股份有限公司 一种交叉式三缸增压发动机气缸盖的冷却水套
DE102015103905A1 (de) * 2015-03-17 2016-09-22 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Zylinderkopf für eine Brennkraftmaschine mit Kühlmittelkanälen
DE102016216360B4 (de) 2016-08-30 2023-01-26 Bayerische Motoren Werke Aktiengesellschaft Zylinderkopf für einen Verbrennungsmotor
JP2018131921A (ja) * 2017-02-13 2018-08-23 ヤマハ発動機株式会社 水冷ｓｏｈｃエンジン
AT16206U1 (de) * 2017-12-19 2019-03-15 Ge Jenbacher Gmbh & Co Og Zylinderkopf für eine Brennkraftmaschine
DE112019006640T5 (de) * 2019-01-10 2021-10-07 Mitsubishi Heavy Industries Engine & Turbocharger, Ltd. Motor und inverter-integrierte rotierbare elektrische maschine
FR3105649B1 (fr) * 2019-12-19 2021-11-26 Valeo Equip Electr Moteur Machine électrique tournante refroidie
US20220242253A1 (en) * 2021-02-02 2022-08-04 Toyota Jidosha Kabushiki Kaisha Electric vehicle
US11286876B1 (en) * 2021-07-06 2022-03-29 Caterpillar Inc. Cylinder head assembly and cylinder head having igniter cooling moat
US11536220B1 (en) * 2022-03-10 2022-12-27 Caterpillar Inc. Passive igniter cooling in cylinder head assembly

Family Cites Families (7)

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Publication number Priority date Publication date Assignee Title
GB1134200A (en) * 1966-10-05 1968-11-20 Paxman & Co Ltd Davey Improvements in and relating to internal combustion engines
DE3516453A1 (de) * 1985-05-08 1986-11-13 Audi AG, 8070 Ingolstadt Fluessigkeitsgekuehlter zylinderkopf
JPS61268849A (ja) * 1985-05-24 1986-11-28 Toyota Motor Corp 内燃機関のシリンダヘツドの冷却水通路構造
DE4116943C2 (de) * 1991-05-24 1997-05-22 Daimler Benz Ag Flüssigkeitsgekühlter Vierventil-Zylinderkopf für eine mehrzylindrige Brennkraftmaschine
JP4067210B2 (ja) * 1999-02-03 2008-03-26 トヨタ自動車株式会社 内燃機関のシリンダヘッド冷却構造
US20020124815A1 (en) * 2001-03-06 2002-09-12 Toyota Jidosha Kabushiki Kaisha Cooling structure of cylinder head and method for manufacturing cylinder head
DE10237664A1 (de) * 2002-08-16 2004-02-19 Dr.Ing.H.C. F. Porsche Ag Zylinderkopf für eine wassergekühlte mehrzylindrige Brennkraftmaschine

Also Published As

Publication number Publication date
DE102004015134A1 (de) 2005-10-13
EP1733132A1 (fr) 2006-12-20
US7128029B2 (en) 2006-10-31
US20060054112A1 (en) 2006-03-16
WO2005093242A1 (fr) 2005-10-06
JP2007530851A (ja) 2007-11-01

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