EP2041417A1 - Internal combustion engine cylinder head comprising a reinforcing element - Google Patents

Internal combustion engine cylinder head comprising a reinforcing element

Info

Publication number
EP2041417A1
EP2041417A1 EP07803942A EP07803942A EP2041417A1 EP 2041417 A1 EP2041417 A1 EP 2041417A1 EP 07803942 A EP07803942 A EP 07803942A EP 07803942 A EP07803942 A EP 07803942A EP 2041417 A1 EP2041417 A1 EP 2041417A1
Authority
EP
European Patent Office
Prior art keywords
cylinder head
lattice
head according
face
trellis
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.)
Granted
Application number
EP07803942A
Other languages
German (de)
French (fr)
Other versions
EP2041417B1 (en
Inventor
Romain Dejean
Eric Nicouleau-Bourles
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
Publication of EP2041417A1 publication Critical patent/EP2041417A1/en
Application granted granted Critical
Publication of EP2041417B1 publication Critical patent/EP2041417B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D19/00—Casting in, on, or around objects which form part of the product
    • B22D19/0009—Cylinders, pistons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D19/00—Casting in, on, or around objects which form part of the product
    • B22D19/02—Casting in, on, or around objects which form part of the product for making reinforced articles
    • 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

Definitions

  • Cylinder head for an internal combustion engine comprising a reinforcement element
  • the present invention relates to a cylinder head for an internal combustion engine.
  • the cylinder heads of internal combustion engines are generally made of aluminum alloy.
  • the cylinder head adjacent to the combustion chamber is subjected to pressures of up to 200 bar generating considerable bending forces to which are added thermal stresses due to the high temperatures prevailing in the combustion chamber.
  • FR2671310 and 2682899 disclose internal combustion engine cylinder heads having improved resistance to the aforementioned stresses.
  • the solutions described in the documents above consist in making the cylinder head by successive casting of two different alloys.
  • the object of the invention is to create a cylinder head for an internal combustion engine, made of aluminum alloy having a significantly increased resistance to the mechanical and thermal stresses mentioned above.
  • a cylinder head characterized in that it comprises a perforated element extending near the face of the cylinder head adjacent to the combustion chamber, this perforated element being completely coated with the aluminum alloy of the cylinder head and being made of a material having a higher bending strength than said aluminum alloy.
  • the perforated element above reinforces in particular with respect to the bending forces it undergoes during the operation of the engine, the part of the yoke called tablature which is adjacent to the combustion chamber.
  • the perforated element is made of steel and is constituted by a grid or a lattice.
  • This grid or mesh preferably extends parallel to the face of the cylinder head adjacent to the combustion chamber.
  • This grid or mesh, steel or other high-strength alloy is thus separated from said face by a constant aluminum alloy thickness.
  • said lattice extends over substantially the entire length and width of the yoke.
  • said lattice reinforces with respect to the bending and thermal forces, the entire part of the yoke that is adjacent to the combustion chamber.
  • said mesh extends between the intake and exhaust ducts and the passages for the cooling liquid made in the cylinder head and said face adjacent to the combustion chamber.
  • said lattice is separated from said ducts, passages and said face by an aluminum alloy thickness at least equal to the thickness of said lattice.
  • said lattice comprises recesses surrounding the exhaust and intake ducts, the fuel injector and the glow plug.
  • the lattice is composed of parallel bars extending along the length of the bolt, of bars parallel extending along the width of the yoke and parallel bars extending along diagonals.
  • the bars have a smaller thickness in the plane of the lattice than in a direction perpendicular to this plane.
  • FIG. 1 is a cross-sectional view of a yoke comprising a lattice-shaped perforated element
  • FIG. 2 is a plan view of the lattice
  • FIG. is a perspective view of a portion of the lattice
  • FIG. 4 is a perspective view of a portion of the yoke in which the lattice is embedded
  • FIG. 5 is a sectional view of the detail A of FIG. .
  • Figure 1 shows in section the cylinder head 1 of an internal combustion engine, made of aluminum alloy, in particular a diesel direct injection engine.
  • This yoke 1 comprises a perforated element 2 extending near the face 3 of the yoke adjacent to the combustion chamber.
  • This perforated element 2 is completely covered by the aluminum alloy of the yoke 1 and is made of a material such as steel having a higher bending strength than the aluminum alloy constituting the yoke 1.
  • the perforated element 1 is a lattice that can be cut or stamped into a steel plate or be molded.
  • FIG. 1 shows that the lattice 2 extends parallel to the face 3 of the yoke 1, adjacent to the combustion chamber and extends over substantially the entire length and width of the yoke 1.
  • the mesh 2 extends between the intake ducts 4 and exhaust 5 and the passages 6, 7, 8 for the cooling liquid made in the cylinder head and the face 3 adjacent to the combustion chamber.
  • the lattice 2 is separated from the ducts 4, 5, passages 6, 7, 8 and from the face 3 by an aluminum alloy thickness at least equal to the thickness of the lattice 2.
  • FIGS. 2 and 4 show, on the other hand, that the mesh 2 comprises circular recesses 9, 10, 11, 12, 13 intended to surround the exhaust and intake ducts, the fuel injector and the spark plug. preheating.
  • the lattice is composed of parallel bars 14 extending along the length of the yoke, parallel bars 15 extending along the width of the yoke and parallel bars 16, 17 extending following diagonals.
  • the bars 14, 15, 16 and 17 have a smaller thickness in the plane of the lattice 2 than in a direction perpendicular to this plane.
  • the molten alloy completely covers the bars 14 to 17 of the mesh 2 and completely fills the openings, that is to say the spaces between the bars.
  • the steel mesh 2 reinforces with respect to the bending forces the tablature of the cylinder head and prevents the cracking thereof, despite the strong mechanical and thermal stresses it undergoes in the case of an engine whose power can to reach 80 KW per liter of displacement.
  • the mesh 2 may also be made of another alloy with high strength than steel.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Luminescent Compositions (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)

Abstract

Internal combustion engine cylinder head (1) made of aluminium alloy, characterized in that it comprises a perforated element (2) running close to the face (3) of the cylinder head that is adjacent to the combustion chamber, this perforated element (2) being completely encased by the aluminium alloy of the cylinder head and made of a material that has a better bending strength than the said aluminium alloy.

Description

Culasse pour moteur à combustion interne, comportant un élément de renfort Cylinder head for an internal combustion engine, comprising a reinforcement element
La présente invention concerne une culasse pour moteur à combustion interne.The present invention relates to a cylinder head for an internal combustion engine.
Les culasses des moteurs à combustion interne sont généralement réalisées en alliage d'aluminium. Dans les moteurs à combustion interne actuels, en particulier dans les moteurs diesel turbocompressés à injection directe dont la puissance peut atteindre 80 kW par litre de cylindrée, la face de la culasse adjacente à la chambre de combustion est sollicitée par des pressions pouvant atteindre 200 bars engendrant des efforts de flexion considérables auxquelles s'ajoutent des sollicitations thermiques dues aux fortes températures régnant dans la chambre de combustion.The cylinder heads of internal combustion engines are generally made of aluminum alloy. In today's internal combustion engines, particularly in direct injection turbocharged diesel engines with a power output of up to 80 kW per liter of displacement, the cylinder head adjacent to the combustion chamber is subjected to pressures of up to 200 bar generating considerable bending forces to which are added thermal stresses due to the high temperatures prevailing in the combustion chamber.
Ces sollicitations mécaniques et thermiques peuvent conduire à la fissuration de la tablature de la culasse, c'est-à-dire la couche d'alliage d'aluminium qui sépare la face adjacente à la chambre de combustion, des conduits d'admission et d'échappement ainsi que des passages pour le liquide de refroidissement qui sont réalisés dans la culasse.These mechanical and thermal stresses can lead to cracking of the tab of the cylinder head, that is to say the layer of aluminum alloy which separates the face adjacent to the combustion chamber, intake ducts and exhaust and passages for the coolant that are made in the cylinder head.
Les FR2671310 et 2682899 décrivent des culasses de moteur à combustion interne ayant une résistance améliorée à l'égard des sollicitations précitées. Les solutions décrites dans les documents ci-dessus consistent à réaliser la culasse par coulées successives de deux alliages différents.FR2671310 and 2682899 disclose internal combustion engine cylinder heads having improved resistance to the aforementioned stresses. The solutions described in the documents above consist in making the cylinder head by successive casting of two different alloys.
Cependant ces solutions sont de mise en œuvre délicate et coûteuse et ne sont pas suffisantes pour éviter la fissuration des culasses des moteurs de forte puissance spécifique prévus dans le futur. Le but de l'invention est de créer une culasse pour moteur à combustion interne, réalisée en alliage d'aluminium ayant une résistance nettement augmentée à l'égard des sollicitations mécaniques et thermiques évoquées plus haut.However, these solutions are difficult and expensive to implement and are not sufficient to prevent the cracking of the heads of high specific power engines expected in the future. The object of the invention is to create a cylinder head for an internal combustion engine, made of aluminum alloy having a significantly increased resistance to the mechanical and thermal stresses mentioned above.
Ce but est atteint selon l'invention par une culasse caractérisée en ce qu'elle comprend un élément ajouré s'étendant près de la face de la culasse adjacente à la chambre de combustion, cet élément ajouré étant complètement enrobé par l'alliage d'aluminium de la culasse et étant réalisé dans une matière ayant une résistance à la flexion supérieure à celle dudit alliage d'aluminium. L'élément ajouré ci-dessus renforce notamment à l'égard des efforts de flexion qu'elle subit lors du fonctionnement du moteur, la partie de la culasse appelée tablature qui est adjacente à la chambre de combustion.This object is achieved according to the invention by a cylinder head characterized in that it comprises a perforated element extending near the face of the cylinder head adjacent to the combustion chamber, this perforated element being completely coated with the aluminum alloy of the cylinder head and being made of a material having a higher bending strength than said aluminum alloy. The perforated element above reinforces in particular with respect to the bending forces it undergoes during the operation of the engine, the part of the yoke called tablature which is adjacent to the combustion chamber.
De préférence, l'élément ajouré est en acier et est constitué par une grille ou un treillis. Cette grille ou treillis s'étend de préférence parallèlement à la face de la culasse adjacente à la chambre de combustion. Cette grille ou treillis, en acier ou en un autre alliage à haute résistance, est ainsi séparée de ladite face par une épaisseur d'alliage d'aluminium constante.Preferably, the perforated element is made of steel and is constituted by a grid or a lattice. This grid or mesh preferably extends parallel to the face of the cylinder head adjacent to the combustion chamber. This grid or mesh, steel or other high-strength alloy, is thus separated from said face by a constant aluminum alloy thickness.
Avantageusement, ledit treillis s'étend sur sensiblement toute la longueur et la largeur de la culasse.Advantageously, said lattice extends over substantially the entire length and width of the yoke.
De ce fait, ledit treillis renforce à l'égard des efforts de flexion et thermiques, toute la partie de la culasse qui est adjacente à la chambre de combustion.Therefore, said lattice reinforces with respect to the bending and thermal forces, the entire part of the yoke that is adjacent to the combustion chamber.
Avantageusement, ledit treillis s'étend entre les conduits d'admission et d'échappement et les passages pour le liquide de refroidissement réalisés dans la culasse et ladite face adjacente à la chambre de combustion.Advantageously, said mesh extends between the intake and exhaust ducts and the passages for the cooling liquid made in the cylinder head and said face adjacent to the combustion chamber.
De préférence, ledit treillis est séparé desdits conduits, passages et de ladite face par une épaisseur d'alliage d'aluminium au moins égale à l'épaisseur dudit treillis. De préférence également, ledit treillis comporte des évidements entourant les conduits d'échappement et d'admission, l'injecteur de carburant et la bougie de préchauffage.Preferably, said lattice is separated from said ducts, passages and said face by an aluminum alloy thickness at least equal to the thickness of said lattice. Also preferably, said lattice comprises recesses surrounding the exhaust and intake ducts, the fuel injector and the glow plug.
Ces évidements du treillis sont séparés desdits conduits, passages et bougie par une épaisseur suffisante d'alliage d'aluminium. Dans une réalisation préférée de l'invention, le treillis est composé de barrettes parallèles s'étendant suivant la longueur de la culasse, de barrettes parallèles s'étendant suivant la largeur de la culasse et de barrettes parallèles s'étendant suivant des diagonales.These recesses of the lattice are separated from said ducts, passages and candle by a sufficient thickness of aluminum alloy. In a preferred embodiment of the invention, the lattice is composed of parallel bars extending along the length of the bolt, of bars parallel extending along the width of the yoke and parallel bars extending along diagonals.
Pour augmenter la résistance à la flexion du treillis, les barrettes ont une épaisseur plus faible dans le plan du treillis, que dans une direction perpendiculaire à ce plan.To increase the flexural strength of the lattice, the bars have a smaller thickness in the plane of the lattice than in a direction perpendicular to this plane.
D'autres particularités et avantages de l'invention apparaîtront encore tout au long de la description ci-après.Other features and advantages of the invention will become apparent throughout the description below.
Aux dessins annexés, donnés à titre d'exemples, non limitatifs : la figure 1 est une vue en coupe transversale d'une culasse comportant un élément ajouré en forme de treillis, la figure 2 est une vue en plan du treillis, la figure 3 est une vue en perspective d'une partie du treillis, la figure 4 est une vue en perspective d'une partie de la culasse dans laquelle le treillis est enrobé, - la figure 5 est une vue en coupe du détail A de la figure 4.In the accompanying drawings, given by way of nonlimiting example: FIG. 1 is a cross-sectional view of a yoke comprising a lattice-shaped perforated element, FIG. 2 is a plan view of the lattice, FIG. is a perspective view of a portion of the lattice, FIG. 4 is a perspective view of a portion of the yoke in which the lattice is embedded; FIG. 5 is a sectional view of the detail A of FIG. .
La figure 1 représente en coupe la culasse 1 d'un moteur à combustion interne, réalisée en alliage d'aluminium, en particulier d'un moteur diesel à injection directe.Figure 1 shows in section the cylinder head 1 of an internal combustion engine, made of aluminum alloy, in particular a diesel direct injection engine.
Cette culasse 1 comprend un élément ajouré 2 s'étendant près de la face 3 de la culasse adjacente à la chambre de combustion. Cet élément ajouré 2 est complètement enrobé par l'alliage d'aluminium de la culasse 1 et est réalisé dans une matière telle que l'acier ayant une résistance à la flexion supérieure à celle de l'alliage d'aluminium constituant la culasse 1 .This yoke 1 comprises a perforated element 2 extending near the face 3 of the yoke adjacent to the combustion chamber. This perforated element 2 is completely covered by the aluminum alloy of the yoke 1 and is made of a material such as steel having a higher bending strength than the aluminum alloy constituting the yoke 1.
On voit sur les figures 2 et 3 que l'élément ajouré 1 est un treillis qui peut être découpé ou estampé dans une plaque en acier ou être moulé.It is seen in Figures 2 and 3 that the perforated element 1 is a lattice that can be cut or stamped into a steel plate or be molded.
La figure 1 montre que le treillis 2 s'étend parallèlement à la face 3 de la culasse 1 , adjacente à la chambre de combustion et s'étend sur sensiblement toute la longueur et la largeur de la culasse 1 .FIG. 1 shows that the lattice 2 extends parallel to the face 3 of the yoke 1, adjacent to the combustion chamber and extends over substantially the entire length and width of the yoke 1.
Par ailleurs, le treillis 2 s'étend entre les conduits d'admission 4 et d'échappement 5 et les passages 6, 7, 8 pour le liquide de refroidissement réalisés dans la culasse et la face 3 adjacente à la chambre de combustion. Le treillis 2 est séparé des conduits 4, 5, des passages 6, 7, 8 et de la face 3 par une épaisseur d'alliage d'aluminium au moins égale à l'épaisseur du treillis 2.Moreover, the mesh 2 extends between the intake ducts 4 and exhaust 5 and the passages 6, 7, 8 for the cooling liquid made in the cylinder head and the face 3 adjacent to the combustion chamber. The lattice 2 is separated from the ducts 4, 5, passages 6, 7, 8 and from the face 3 by an aluminum alloy thickness at least equal to the thickness of the lattice 2.
Les figures 2 et 4 montrent d'autre part, que le treillis 2 comporte des évidements circulaires 9, 10, 11 , 12, 13 destinés à entourer les conduits d'échappement et d'admission, l'injecteur de carburant et la bougie de préchauffage.FIGS. 2 and 4 show, on the other hand, that the mesh 2 comprises circular recesses 9, 10, 11, 12, 13 intended to surround the exhaust and intake ducts, the fuel injector and the spark plug. preheating.
Comme montré sur les figures 2 et 3, le treillis est composé de barrettes parallèles 14 s'étendant suivant la longueur de la culasse, de barrettes parallèles 15 s'étendant suivant la largeur de la culasse et de barrettes parallèles 16, 17 s'étendant suivant des diagonales.As shown in Figures 2 and 3, the lattice is composed of parallel bars 14 extending along the length of the yoke, parallel bars 15 extending along the width of the yoke and parallel bars 16, 17 extending following diagonals.
De plus, les barrettes 14, 15, 16 et 17 ont une épaisseur plus faible dans le plan du treillis 2 que dans une direction perpendiculaire à ce plan.In addition, the bars 14, 15, 16 and 17 have a smaller thickness in the plane of the lattice 2 than in a direction perpendicular to this plane.
Cette particularité confère au treillis 2 une importante résistance aux efforts de flexion, malgré le fait que les ajours compris entre les barrettes 14 àThis peculiarity gives the mesh 2 an important resistance to the bending forces, despite the fact that the openings between the bars 14 to
17 représentent une surface supérieure à 90% de la surface totale du treillis 2.17 represent an area greater than 90% of the total surface of the mesh 2.
Lors de la fabrication de la culasse 1 par coulée sous pression d'alliage d'aluminium dans une moule, l'alliage en fusion enrobe complètement les barrettes 14 à 17 du treillis 2 et remplit entièrement les ajours c'est-à-dire les espaces compris entre les barrettes.During the manufacture of the cylinder head 1 by die casting of aluminum alloy in a mold, the molten alloy completely covers the bars 14 to 17 of the mesh 2 and completely fills the openings, that is to say the spaces between the bars.
Le treillis 2 en acier renforce à l'égard des efforts de flexion la tablature de la culasse et empêche la fissuration de celle-ci, malgré les fortes sollicitations mécaniques et thermiques qu'elle subit dans le cas d'un moteur dont la puissance peut atteindre 80 KW par litre de cylindrée. Le treillis 2 peut également être réalisé en un autre alliage à haute résistance que l'acier. The steel mesh 2 reinforces with respect to the bending forces the tablature of the cylinder head and prevents the cracking thereof, despite the strong mechanical and thermal stresses it undergoes in the case of an engine whose power can to reach 80 KW per liter of displacement. The mesh 2 may also be made of another alloy with high strength than steel.

Claims

REVENDICATIONS
1 ) Culasse (1 ) pour moteur à combustion interne, réalisée en alliage d'aluminium et comprenant un élément ajouré (2) s'étendant près de la face (3) de la culasse adjacente à la chambre de combustion, cet élément ajouré1) Cylinder head (1) for an internal combustion engine, made of aluminum alloy and comprising a perforated element (2) extending near the face (3) of the cylinder head adjacent to the combustion chamber, this perforated element
(2) étant complètement enrobé par l'alliage d'aluminium de la culasse et étant réalisé dans une matière ayant une résistance à la flexion supérieure à celle dudit alliage d'aluminium, caractérisée en ce que l'élément ajouré (2) est un treillis. 2) Culasse selon la revendication 1 , caractérisée en ce que le treillis(2) being completely coated by the aluminum alloy of the cylinder head and being made of a material having a bending resistance greater than that of said aluminum alloy, characterized in that the perforated element (2) is a trellis. 2) Cylinder head according to claim 1, characterized in that the mesh
(2) est en acier.(2) is made of steel.
3) Culasse selon l'une des revendications précédentes, caractérisée en ce que ledit treillis (2) s'étend parallèlement à la face (3) de la culasse (1 ) adjacente à la chambre de combustion. 4) Culasse selon l'une des revendications précédentes, caractérisée en ce que ledit treillis (2) s'étend sur sensiblement toute la longueur et la largeur de la culasse (1 ).3) Cylinder head according to one of the preceding claims, characterized in that said lattice (2) extends parallel to the face (3) of the cylinder head (1) adjacent to the combustion chamber. 4) Cylinder head according to one of the preceding claims, characterized in that said trellis (2) extends over substantially the entire length and width of the cylinder head (1).
5) Culasse selon l'une des revendications précédentes, caractérisée en ce que ledit treillis (2) s'étend entre les conduits d'admission (4) et d'échappement (5) et les passages (6, 7, 8) pour le liquide de refroidissement réalisés dans la culasse et ladite face (3) adjacente à la chambre de combustion.5) Cylinder head according to one of the preceding claims, characterized in that said trellis (2) extends between the intake (4) and exhaust (5) conduits and the passages (6, 7, 8) for the coolant produced in the cylinder head and said face (3) adjacent to the combustion chamber.
6) Culasse selon la revendication 5, caractérisée en ce que ledit treillis (2) est séparé desdits conduits (4, 5), passages (6, 7, 8) et de ladite face (3) par une épaisseur d'alliage d'aluminium au moins égale à l'épaisseur dudit treillis (2).6) Cylinder head according to claim 5, characterized in that said lattice (2) is separated from said conduits (4, 5), passages (6, 7, 8) and from said face (3) by an alloy thickness of aluminum at least equal to the thickness of said mesh (2).
7) Culasse selon l'une des revendications précédentes, caractérisée en ce que ledit treillis (2) comporte des évidements (9, 10, 1 1 , 12, 13) entourant les conduits d'échappement et d'admission, l'injecteur de carburant et la bougie de préchauffage.7) Cylinder head according to one of the preceding claims, characterized in that said trellis (2) comprises recesses (9, 10, 1 1, 12, 13) surrounding the exhaust and intake ducts, the injector fuel and glow plug.
8) Culasse selon l'une des revendications précédentes, caractérisée en ce que le treillis (2) est composé de barrettes parallèles (14) s'étendant suivant la longueur de la culasse, de barrettes parallèles (15) s'étendant suivant la largeur de la culasse et de barrettes parallèles (16, 17) s'étendant suivant des diagonales.8) Cylinder head according to one of the preceding claims, characterized in that the trellis (2) is composed of parallel bars (14) extending along the length of the cylinder head, parallel bars (15) extending along the width of the cylinder head and parallel bars (16, 17) extending diagonally.
9) Culasse selon la revendication 8, caractérisée en ce que les barrettes (14 à 17) ont une épaisseur plus faible dans le plan du treillis (2), que dans une direction perpendiculaire à ce plan. 9) Cylinder head according to claim 8, characterized in that the bars (14 to 17) have a lower thickness in the plane of the lattice (2), than in a direction perpendicular to this plane.
EP07803942A 2006-07-18 2007-06-26 Internal combustion engine cylinder head comprising a reinforcing element Not-in-force EP2041417B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0606526A FR2904052B1 (en) 2006-07-18 2006-07-18 CYLINDER HEAD FOR INTERNAL COMBUSTION ENGINE, COMPRISING A REINFORCING ELEMENT.
PCT/FR2007/051523 WO2008009834A1 (en) 2006-07-18 2007-06-26 Internal combustion engine cylinder head comprising a reinforcing element

Publications (2)

Publication Number Publication Date
EP2041417A1 true EP2041417A1 (en) 2009-04-01
EP2041417B1 EP2041417B1 (en) 2009-12-23

Family

ID=37814187

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07803942A Not-in-force EP2041417B1 (en) 2006-07-18 2007-06-26 Internal combustion engine cylinder head comprising a reinforcing element

Country Status (6)

Country Link
EP (1) EP2041417B1 (en)
JP (1) JP2009543979A (en)
AT (1) ATE453044T1 (en)
DE (1) DE602007003985D1 (en)
FR (1) FR2904052B1 (en)
WO (1) WO2008009834A1 (en)

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FR2059230A5 (en) * 1969-09-11 1971-05-28 Kloeckner Humboldt Deutz Ag
JPS5359009U (en) * 1976-10-21 1978-05-19
JPS56113138U (en) * 1980-01-31 1981-09-01
JPS5874266A (en) * 1981-10-29 1983-05-04 Honda Motor Co Ltd Production of cylinder head for engine
JPS61244860A (en) * 1985-04-23 1986-10-31 Mitsubishi Motors Corp Cylinderhead
JPS63147959A (en) * 1986-12-09 1988-06-20 Isuzu Motors Ltd Cylinder head structure
JPH0530447U (en) * 1991-09-25 1993-04-23 日産自動車株式会社 Engine crank frame
FR2697291B1 (en) * 1992-10-28 1994-12-02 Peugeot Arrangement of metal inserts for cylinder head expansion joints of an internal combustion engine.
DE102004053362A1 (en) * 2004-11-02 2006-05-04 Fev Motorentechnik Gmbh Reinforced component

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Title
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Also Published As

Publication number Publication date
FR2904052A1 (en) 2008-01-25
EP2041417B1 (en) 2009-12-23
WO2008009834A1 (en) 2008-01-24
DE602007003985D1 (en) 2010-02-04
JP2009543979A (en) 2009-12-10
ATE453044T1 (en) 2010-01-15
FR2904052B1 (en) 2012-10-19

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