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EP3526461B1 - Coolant deflector - Google Patents

Coolant deflector Download PDF

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Publication number
EP3526461B1
EP3526461B1 EP17777307.4A EP17777307A EP3526461B1 EP 3526461 B1 EP3526461 B1 EP 3526461B1 EP 17777307 A EP17777307 A EP 17777307A EP 3526461 B1 EP3526461 B1 EP 3526461B1
Authority
EP
European Patent Office
Prior art keywords
deflector
deflector body
cylinder head
protruding part
edge
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.)
Active
Application number
EP17777307.4A
Other languages
German (de)
French (fr)
Other versions
EP3526461A1 (en
Inventor
Eric Jacquart
Gonzalo PORTELA-GARNIKA
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 EP3526461A1 publication Critical patent/EP3526461A1/en
Application granted granted Critical
Publication of EP3526461B1 publication Critical patent/EP3526461B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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 
    • F02F1/02—Cylinders; Cylinder heads  having cooling means
    • F02F1/10—Cylinders; Cylinder heads  having cooling means for liquid cooling
    • F02F1/14—Cylinders 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
    • F01P3/02—Arrangements for cooling cylinders or cylinder heads
    • F01P2003/021—Cooling cylinders

Definitions

  • the present invention relates to a coolant deflector for an engine, which can in particular be used in a motor vehicle.
  • the document FR2905423 B1 discloses an engine deflector. It is described as having a substantially elongated general shape parallel to the cylinder axes of a crankcase. It is represented as a rectangular parallelepiped. This deflector directs a flow of cooling fluid in a given direction, while preventing the passage of fluid in the direction opposite to said given direction.
  • the document FR2905423 B1 does not disclose how the deflector is mounted in the engine. Furthermore, this document does not disclose how the deflector holds in place under the pressure of the coolant.
  • One of the aims of the invention is to provide an engine deflector that is easy to fit and remains in place under the effect of the pressure of the coolant.
  • the deflector according to the invention also makes it possible to distribute the flow of cooling fluid in two different directions.
  • the placement of the deflector is done after placement of the cylinder head gasket on the cylinder block, by sliding the deflector into a cutout provided for this purpose in the cylinder head gasket.
  • the cylinder head is then placed on the cylinder head gasket, thus pushing the first projecting part of the deflector towards the cylinder block. This bends slightly downwards and drags the body of the deflector downwards, which helps to maintain the tenon in the mortise of the cylinder block.
  • the deflector In a second method of placing the deflector, the deflector is placed before placing the cylinder head gasket on the cylinder block. The first projecting part of the deflector is then pushed downwards by the cylinder head gasket. This bends slightly downwards dragging the body of the deflector downwards, which helps to hold the tenon in the mortise of the cylinder block.
  • the first protruding part of the deflector which is elastically deformable downwards, allows a part located above the deflector to push the latter downwards and to maintain it in a vertical position despite the tolerances of the different parts and despite the possible displacements of the different parts with respect to each other.
  • the tenon of the deflector is thus particularly well locked in the mortise of the cylinder block by a vertical pressure and the deflector is particularly able to remain in place under the flow of coolant.
  • the deflector body comprises a through hole in a second direction substantially perpendicular to the first direction.
  • Said hole makes it possible to distribute the cooling fluid between two directions in order to cool elements of the cylinder block such as the liners surrounding the cylinders.
  • the geometry and the dimensions of the hole also make it possible to adjust the flow rate of cooling fluid in each of the two directions.
  • the cylinder head gasket comprises a gasket cutout arranged to allow passage of the deflector body and receiving the first end of the deflector body and the first projecting part, and the optional second projecting part , protrude(s) from the cylinder head gasket so as to be able to be deformed by the installation of a cylinder head on the cylinder head gasket.
  • the deflector further comprises ribs extending essentially along the first direction and in that the cylinder block comprises grooves extending essentially along the first direction and arranged to receive the ribs of the deflector.
  • first and second are used only to differentiate the different elements and do not imply an order between these elements.
  • a deflector 10 comprises a deflector body 11 extending mainly along a first direction 101 which is a vertical direction when the deflector 10 is in place in an engine arranged in the usual way, that is to say with a cylinder head gasket 40 located horizontally above a cylinder block 50 and a cylinder head 60 located above the cylinder head gasket 40 (see figure 3b for example).
  • the first direction 101 is essentially parallel to the axes of the cylinders 53 of the engine.
  • the cylinder block 50 comprises at least one cylinder which is cooled by at least one water chamber 51 formed in the housing 50.
  • the deflector 10 is arranged in the water chamber 51 so as to distribute the flow F1 of the cooling liquid in a first flow F2 directed towards the internal cylindrical wall of the chamber 51 of water, on the one hand, and in a second flow F3 directed towards the cylinder head, on the other hand.
  • said cylinder head comprises a cooling duct of which an opening facing the cylinder block is formed substantially in line with the water chamber 51 of the cylinder block in which the deflector 10 is arranged.
  • the body 11 of the deflector is interposed between an inlet conduit for the cooling fluid flow F1 of the chamber 51 of water.
  • the body 11 of the deflector also extends in a second direction 102 and in a third direction 103. Its extension in the third direction 103 is preferably less than in the first direction 101 and its extension in the second direction 102 is preferably less than in the third direction 103.
  • the body 11 of the deflector preferably comprises a hole 12 passing through it substantially in the second direction 102. The hole 12 allows the circulation of cooling fluid from the pipe 52 of arrival towards the chamber 51 of water.
  • the upper part of the body 11 of the deflector 10 forms a partition which separates a duct 54 for deflecting a part F3 of the flow of cooling fluid towards the cylinder head 60 and the chamber 51 of water.
  • a first function of the deflector 10 is to direct a flow of coolant in order to effectively cool the walls of chambers 51 of the cylinder block 50.
  • the deflector 10 is preferably arranged in the engine so that a first part of the cooling liquid cooling is directed through the hole 12 substantially in the second direction 102. After passing through the hole 12, the cooling fluid is circulated around the cylinder block, for example in a direction substantially transverse to the second direction 102.
  • the hole 12 has a section adapted to adjust the flow of cooling fluid to said chambers 51.
  • a second function of the deflector 10 is to direct a second part of the coolant liquid towards the cylinder head 60, and more particularly towards a cylinder head cooling duct inlet opening 62, as shown in figure 3b and 4b .
  • the body 11 of the deflector 10 has a geometry and dimensions suitable for directing the second part of cooling fluid in the first direction 101 towards the cylinder head 60.
  • a second part of cooling fluid arriving via the pipe 52 of arrival does not does not pass through the hole 12 but it is deflected upwards in the first direction 101.
  • the body 11 of the deflector has a first end 20 along the first direction 101, which is its upper end when the deflector 10 is in place in a motor arranged in the usual way.
  • the body 11 of the deflector has a second end 30, opposite the first end 20 in the first direction 101, and which is its lower end when the deflector 10 is in place in a motor arranged in the usual way.
  • the deflector 10 comprises a stud 31 fixed to the deflector body 11 and extending beyond the second end 30 of the deflector body 11 in the first direction 101.
  • the stud 31 projects downwards from the body 11 of the deflector.
  • the tenon 31 is placed in a vertical mortise of the cylinder housing 50 provided to receive it and block it according to the second 102 and third 103 directions.
  • the tenon 31 preferably has a greater extension along the third direction 103 than along the second direction 102, so as to properly support the deflector 10 subjected to a cooling liquid flow F1 directed in the second direction 102.
  • the deflector 10 further comprises a first projecting part 21 fixed to the body 11 of the deflector and extending at least beyond the first end 20 of the body 11 of the deflector in the first direction 101.
  • the first part in projection 21 extends at least upwards from body 11 of the deflector.
  • the first protruding part 21 can also extend in the second 102 and/or the third direction 103.
  • the first protruding part 21 is elastically flexible to deform downwards, that is to say according to the first direction 101 in the direction of the body 11 of the deflector, when the cylinder head 60 or the cylinder head gasket 40 is placed on the deflector 10. This makes it possible to elastically constrain the deflector 10 downwards so as to guarantee that the tenon 31 is embedded in the mortise.
  • the figure 1 illustrates a deflector 10 in a first embodiment of the invention.
  • the first projecting part 21 comprises a bump 29 extending along the first direction 101 on the first end 20 of the body 11 of the deflector, and the body 11 of the deflector preferably comprises a hole 13 in which the bump 29 can sink elastically when downward pressure is exerted on it.
  • the figures 2a and 2b illustrate a deflector 10 in a second embodiment of the invention.
  • the figure 2b is a vertical section along segment IIB indicated in figure 2a .
  • the first projecting part 21 comprises an elastomer skirt 28 extending along the first direction 101 over the first end 20 of the body 11 of the deflector.
  • the skirt 28 extends in the second direction 102 above the first end 20 of the body 11 of the deflector.
  • the picture 3a illustrates a deflector 10 in a third embodiment of the invention.
  • the picture 3a shows a first 23 and a second 24 edges of the first end 20 of the body 11 of the deflector.
  • the first 23 and the second 24 edges are essentially parallel to the third direction 103.
  • the first projecting part 21 extends beyond the first edge 23 along the second direction 102.
  • the deflector 10 comprises a second projecting part 22.
  • the second projecting part 22 extends beyond the first end 20 of the body 11 of the deflector in the first direction 101 and beyond the second edge 24 in the second direction 102 and in a direction opposite to the first projection 21.
  • the first 21 and the second 22 projecting parts are preferably offset relative to each other in the second direction 102.
  • the first 21 and the second 22 projecting parts comprise preferably each a protrusion 25 on their upper side, so as to promote contact with the cylinder head 60 or the cylinder head gasket 40 placed on the deflector 10.
  • the figure 3b illustrates the action of the yoke 40 on the first 21 and second 22 projecting parts, in a case where the yoke 60 is placed on the deflector 10.
  • the placement of the yoke 60 (illustrated by an arrow 61) elastically pushes the first 21 and second 22 parts projecting downwards (movement illustrated by the arrows 210, 220). It is also possible, while remaining within the scope of the invention, for it to be the cylinder head gasket 40 which is placed on the deflector 10 and pushes the first 21 and second 22 projecting parts downwards.
  • the figure 4a illustrates a deflector 10 in a fourth embodiment of the invention.
  • the figure 4a shows a first 23 and a second 24 edges of the first end 20 of the deflector body 11.
  • the first 23 and the second 24 edges are essentially parallel to the third direction 103.
  • the first projecting part 21 is formed by a cutout part 26 of the first end 20 of the deflector body 11 on the first edge 23.
  • the deflector 10 further comprises a second projecting portion 22 formed by a cutout portion 27 of the first end 20 of the deflector body 11 on the second edge 24.
  • the figure 4b is a vertical section along the IVB segment indicated in figure 4a .
  • the figure 4b illustrates the action of the bolt 40 on the first 21 part projecting, in a case where the yoke 60 is placed on the deflector 10.
  • the placement of the yoke 60 (illustrated by an arrow 61) pushes the first projecting part 21 downwards (movement illustrated by the arrow 210) with a elastic deformation.
  • the second projecting part 22 is also pushed down with an elastic deformation. This creates a vertical constraint on the tenon 31 which forces it to stay in the mortise.
  • it is also possible, while remaining within the scope of the invention, for it to be the cylinder head gasket 40 which is placed on the deflector 10 and pushes the first 21 and second 22 projecting parts downwards.
  • the figure 5 illustrates the placement, according to a first placement method, of a deflector 10 according to one embodiment of the invention.
  • the cylinder head gasket 40 has already been placed on the cylinder block 50.
  • the cylinder head gasket 40 comprises a gasket cutout 41 allowing passage of the deflector 10.
  • the gasket cutout 41 is preferably provided to receive the first end 20 of the body 11 of deflector, so that the first protruding part 21, and the second 22 if it is present, protrudes slightly upwards from the cylinder head gasket 40.
  • the cylinder head 60 is placed above the cylinder head gasket 40, pushing down the projecting part(s) 21, 22.
  • the gasket cutout 41 helps to guide the deflector 10 during its installation.
  • the deflector 10 according to any of the first, second, third or fourth embodiments of the invention is compatible with the cutout 41 of the gasket.
  • the figure 6 illustrates a deflector 10 according to one embodiment of the invention.
  • the deflector 10 preferably comprises vertical ribs 12, for example on each of its sides in the third direction 103.
  • the corresponding cylinder block 50 comprises vertical grooves (not shown) making it possible to receive the ribs 12.
  • the ribs are arranged asymmetrically to allow polarization when the deflector 10 is put in place.
  • the ribs 12 help guide the deflector 10 when it is put in place.
  • the cylinder head gasket 40 then potentially comprises no cutout 41 (visible on figure 5 ), and the deflector 10 can be placed before the placement of the cylinder head gasket 40, according to a second method of placement of the deflector 10.
  • the cylinder head gasket 40 is placed above above the cylinder block 50 after placement of the deflector 10, pushing down the protruding part(s) 21, 22.
  • the fact that the protruding parts 21, 22 deform elastically when pushed downwards creates a stress vertical on the tenon 31 which forces it to remain in the mortise. This allows the deflector 10 to be particularly easy to install and to withstand horizontal flow pressure particularly well.
  • the deflector 10 may include ribs 12.

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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)

Description

Domaine techniqueTechnical area

La présente invention concerne un déflecteur de liquide de refroidissement pour moteur, pouvant notamment être utilisé dans un véhicule automobile.The present invention relates to a coolant deflector for an engine, which can in particular be used in a motor vehicle.

Art antérieurPrior art

Le document FR2905423 B1 divulgue un déflecteur pour moteur. Il est décrit comme de forme générale sensiblement allongée parallèlement aux axes de cylindre d'un carter. Il est représenté comme un parallélépipède rectangle. Ce déflecteur dirige un flux de fluide de refroidissement dans une direction donnée, tout en empêchant le passage de fluide dans la direction opposée à ladite direction donnée. Le document FR2905423 B1 ne divulgue pas comment le déflecteur est monté dans le moteur. En outre, ce document ne divulgue pas comment le déflecteur tient en place sous la pression du liquide de refroidissement.The document FR2905423 B1 discloses an engine deflector. It is described as having a substantially elongated general shape parallel to the cylinder axes of a crankcase. It is represented as a rectangular parallelepiped. This deflector directs a flow of cooling fluid in a given direction, while preventing the passage of fluid in the direction opposite to said given direction. The document FR2905423 B1 does not disclose how the deflector is mounted in the engine. Furthermore, this document does not disclose how the deflector holds in place under the pressure of the coolant.

Divers moteurs avec déflecteurs sont connus de WO2008010584A1 , JP2008025482A , JP2005030297A , KR20100111466A , JP2012036742A , JP2007127066A ou JP2011106387A .Various motors with deflectors are known from WO2008010584A1 , JP2008025482A , JP2005030297A , KR20100111466A , JP2012036742A , JP2007127066A Where JP2011106387A .

Résumé de l'inventionSummary of the invention

Un des buts de l'invention est de fournir un déflecteur pour moteur facile à monter et restant en place sous l'effet de la pression du liquide de refroidissement. Le déflecteur selon l'invention permet en outre de répartir le flux de fluide de refroidissement dans deux directions différentes.One of the aims of the invention is to provide an engine deflector that is easy to fit and remains in place under the effect of the pressure of the coolant. The deflector according to the invention also makes it possible to distribute the flow of cooling fluid in two different directions.

L'invention propose un déflecteur pour liquide de refroidissement d'un moteur comprenant un corps de déflecteur destiné à diriger un écoulement d'un liquide de refroidissement, le corps de déflecteur s'étendant selon une première direction et ayant une première extrémité et une deuxième extrémité, la première extrémité étant essentiellement opposée à la deuxième extrémité selon la première direction,
caractérisé en ce que

  • le déflecteur comprend un tenon fixé au corps de déflecteur et s'étendant au-delà de la deuxième extrémité du corps de déflecteur selon la première direction, et
  • le déflecteur comprend une première partie en saillie déformable élastiquement selon la première direction fixée au corps de déflecteur et s'étendant au-delà de la première extrémité du corps de déflecteur selon la première direction.
The invention provides an engine coolant deflector comprising a deflector body for directing a flow of coolant, the deflector body extending in a first direction and having a first end and a second end, the first end being essentially opposite the second end in the first direction,
characterized in that
  • the deflector comprises a tenon fixed to the deflector body and extending beyond the second end of the deflector body in the first direction, and
  • the deflector comprises a first projecting part elastically deformable along the first direction fixed to the deflector body and extending beyond the first end of the deflector body along the first direction.

L'assemblage d'un tel déflecteur est particulièrement aisé car il suffit de le placer à l'endroit adéquat de façon à ce que son tenon soit inséré dans une mortaise prévue à cet effet dans le carter cylindre. L'insertion du tenon dans la mortaise du carter cylindres permet que le déflecteur ne bouge pas, en particulier sous la pression du liquide de refroidissement.The assembly of such a deflector is particularly easy because it suffices to place it in the appropriate place so that its tenon is inserted in a mortise provided for this purpose in the cylinder block. The insertion of the tenon in the mortise of the cylinder block ensures that the deflector does not move, in particular under the pressure of the coolant.

Dans une première méthode de placement du déflecteur, le placement du déflecteur se fait après placement du joint de culasse sur le carter cylindres, en glissant le déflecteur dans une découpe prévue à cet effet dans le joint de culasse. La culasse est ensuite mise en place sur le joint de culasse, poussant ainsi la première partie saillante du déflecteur vers le carter cylindres. Celle-ci se plie légèrement vers le bas et entrainant le corps du déflecteur vers le bas, ce qui aide au maintien du tenon dans la mortaise du carter cylindre.In a first method of placement of the deflector, the placement of the deflector is done after placement of the cylinder head gasket on the cylinder block, by sliding the deflector into a cutout provided for this purpose in the cylinder head gasket. The cylinder head is then placed on the cylinder head gasket, thus pushing the first projecting part of the deflector towards the cylinder block. This bends slightly downwards and drags the body of the deflector downwards, which helps to maintain the tenon in the mortise of the cylinder block.

Dans une deuxième méthode de placement du déflecteur, le placement du déflecteur se fait avant placement du joint de culasse sur le carter cylindres. La première partie saillante du déflecteur est alors poussée vers le bas par le joint de culasse. Celle-ci se plie légèrement vers le bas entrainant le corps du déflecteur vers le bas, ce qui aide au maintien du tenon dans la mortaise du carter cylindre.In a second method of placing the deflector, the deflector is placed before placing the cylinder head gasket on the cylinder block. The first projecting part of the deflector is then pushed downwards by the cylinder head gasket. This bends slightly downwards dragging the body of the deflector downwards, which helps to hold the tenon in the mortise of the cylinder block.

Par conséquent, dans tous les cas, la première partie saillante du déflecteur, qui est déformable élastiquement vers le bas, permet à une pièce située au-dessus du déflecteur de pousser celui-ci vers le bas et de le maintenir en position verticale malgré les tolérances des différentes pièces et malgré les déplacements possibles des différentes pièces les unes par rapport aux autres. Le tenon du déflecteur est ainsi particulièrement bien bloqué dans la mortaise du carter cylindre par une pression verticale et le déflecteur est particulièrement apte à rester en place sous le flux de liquide de refroidissement.Consequently, in all cases, the first protruding part of the deflector, which is elastically deformable downwards, allows a part located above the deflector to push the latter downwards and to maintain it in a vertical position despite the tolerances of the different parts and despite the possible displacements of the different parts with respect to each other. The tenon of the deflector is thus particularly well locked in the mortise of the cylinder block by a vertical pressure and the deflector is particularly able to remain in place under the flow of coolant.

Selon une autre caractéristique de l'invention, le corps de déflecteur comprend un trou traversant selon une deuxième direction sensiblement perpendiculaire à la première direction. Ledit trou permet de répartir le fluide de refroidissement entre deux directions pour refroidir des éléments du carter-cylindres tels que les chemises entourant les cylindres. La géométrie et les dimensions du trou permettent en outre d'ajuster le débit de fluide de refroidissement dans chacune des deux directions.According to another characteristic of the invention, the deflector body comprises a through hole in a second direction substantially perpendicular to the first direction. Said hole makes it possible to distribute the cooling fluid between two directions in order to cool elements of the cylinder block such as the liners surrounding the cylinders. The geometry and the dimensions of the hole also make it possible to adjust the flow rate of cooling fluid in each of the two directions.

Selon d'autres caractéristiques de l'invention :

  • la première partie en saillie comprend une bosse s'étendant selon la première direction sur la première extrémité du corps de déflecteur;
  • la première partie en saillie comprend une jupe en élastomère fixée sur une partie d'un pourtour de la première extrémité du corps de déflecteur;
  • la première partie en saillie s'étend en outre au-delà d'un premier bord de la première extrémité du corps de déflecteur selon une deuxième direction perpendiculaire à la première direction; et comprenant en outre une deuxième partie en saillie s'étendant au-delà de la première extrémité du corps de déflecteur selon la première direction, déformable élastiquement selon la première direction, et s'étendant en outre au-delà d'un deuxième bord de la première extrémité du corps de déflecteur selon la deuxième direction, le deuxième bord étant essentiellement opposé au premier bord selon la deuxième direction;
  • la première et la deuxième parties en saillie comprennent chacune une protubérance située sur un côté de la partie en saillie opposé au corps de déflecteur;
  • la première partie en saillie est formée par une partie découpée de la première extrémité du corps de déflecteur située sur un premier bord de la première extrémité du corps de déflecteur selon une deuxième direction perpendiculaire à la première direction; et comprenant en outre une deuxième partie en saillie déformable élastiquement selon la première direction et formée par une partie découpée de la première extrémité du corps de déflecteur située sur un deuxième bord de la première extrémité du corps de déflecteur selon la deuxième direction, le deuxième bord étant essentiellement opposé au premier bord selon la deuxième direction;
According to other characteristics of the invention:
  • the first projecting part comprises a bump extending in the first direction on the first end of the deflector body;
  • the first protruding part comprises an elastomer skirt attached to a part of a circumference of the first end of the deflector body;
  • the first projection further extends beyond a first edge of the first end of the deflector body in a second direction perpendicular to the first direction; and further comprising a second projecting part extending beyond the first end of the deflector body in the first direction, elastically deformable in the first direction, and further extending beyond a second edge of the first end of the deflector body in the second direction, the second edge being substantially opposite the first edge in the second direction;
  • the first and second projecting portions each include a protrusion located on a side of the projecting portion opposite the deflector body;
  • the first projecting part is formed by a cut-out part of the first end of the deflector body located on a first edge of the first end of the deflector body in a second direction perpendicular to the first direction; and further comprising a second projecting part elastically deformable along the first direction and formed by a cutout part of the first end of the deflector body located on a second edge of the first end of the deflector body along the second direction, the second edge being substantially opposite the first edge in the second direction;

L'invention propose en outre, un moteur en particulier diesel, comprenant:

  • un déflecteur pour liquide de refroidissement,
  • un joint de culasse et
  • un carter cylindres comprenant une mortaise agencée pour recevoir le tenon du déflecteur, la première partie en saillie étant destinée à faire saillie au-dessus du carter cylindres de façon à pouvoir être déformée par la mise en place de la culasse ou du joint de culasse.
The invention further proposes an engine, in particular a diesel engine, comprising:
  • a coolant deflector,
  • a cylinder head gasket and
  • a cylinder block comprising a mortise arranged to receive the tenon of the deflector, the first projecting part being intended to project above the cylinder block so as to be able to be deformed by the positioning of the cylinder head or the cylinder head gasket.

Dans une réalisation de l'invention, le joint de culasse comprend une découpe de joint agencée pour permettre un passage du corps de déflecteur et recevant la première extrémité du corps de déflecteur et la première partie en saillie, et l'éventuelle deuxième partie en saille, dépasse(nt) du joint de culasse de façon à pouvoir être déformée(s) par la mise en place d'une culasse sur le joint de culasse.In one embodiment of the invention, the cylinder head gasket comprises a gasket cutout arranged to allow passage of the deflector body and receiving the first end of the deflector body and the first projecting part, and the optional second projecting part , protrude(s) from the cylinder head gasket so as to be able to be deformed by the installation of a cylinder head on the cylinder head gasket.

Dans une réalisation de l'invention, le déflecteur comprend en outre des nervures s'étendant essentiellement selon la première direction et en ce que le carter cylindres comprend des rainures s'étendant essentiellement selon la première direction et agencées pour recevoir les nervures du déflecteur.In one embodiment of the invention, the deflector further comprises ribs extending essentially along the first direction and in that the cylinder block comprises grooves extending essentially along the first direction and arranged to receive the ribs of the deflector.

Brève description des figuresBrief description of figures

D'autres caractéristiques et avantages de l'invention apparaîtront à la lecture de la description détaillée qui suit pour la compréhension de laquelle on se reportera aux figures annexées parmi lesquelles :

  • la figure 1 illustre un déflecteur dans un premier mode de réalisation de l'invention,
  • la figure 2a illustre un déflecteur dans un deuxième mode de réalisation de l'invention,
  • la figure 2b est une coupe verticale illustrant une partie d'un déflecteur dans le deuxième mode de réalisation de l'invention,
  • la figure 3a illustre un déflecteur dans un troisième mode de réalisation de l'invention,
  • la figure 3b est une vue en coupe verticale illustrant l'action d'une culasse sur des première et deuxième parties en saillie d'un déflecteur selon le troisième mode de réalisation de l'invention, dans un cas où la culasse est placée sur le déflecteur,
  • la figure 4a illustre un déflecteur dans un quatrième mode de réalisation de l'invention,
  • la figure 4b est une coupe verticale illustrant l'action d'une culasse sur une première partie en saillie, dans un cas où la culasse est placée sur le déflecteur et pour un déflecteur selon le quatrième mode de réalisation de l'invention,
  • la figure 5 illustre un placement, selon une première méthode de placement, d'un déflecteur selon un mode de réalisation de l'invention, et
  • la figure 6 illustre un déflecteur selon un mode de réalisation de l'invention,
  • la figure 7 illustre un déflecteur réalisé selon les enseignements de l'invention qui est agencé dans un carter-cylindre et qui réparti un flux de refroidissement vers une chambre d'eau, d'une part, et vers le haut en direction d'une culasse, d'autre part.
Other characteristics and advantages of the invention will appear on reading the detailed description which follows for the understanding of which reference will be made to the appended figures, among which:
  • the figure 1 illustrates a deflector in a first embodiment of the invention,
  • the figure 2a illustrates a deflector in a second embodiment of the invention,
  • the figure 2b is a vertical section illustrating part of a deflector in the second embodiment of the invention,
  • the picture 3a illustrates a deflector in a third embodiment of the invention,
  • the figure 3b is a vertical sectional view illustrating the action of a yoke on first and second projecting parts of a deflector according to the third embodiment of the invention, in a case where the yoke is placed on the deflector,
  • the figure 4a illustrates a deflector in a fourth embodiment of the invention,
  • the figure 4b is a vertical section illustrating the action of a yoke on a first projecting part, in a case where the yoke is placed on the deflector and for a deflector according to the fourth embodiment of the invention,
  • the figure 5 illustrates a placement, according to a first placement method, of a deflector according to one embodiment of the invention, and
  • the figure 6 illustrates a deflector according to one embodiment of the invention,
  • the figure 7 illustrates a deflector produced according to the teachings of the invention which is arranged in a cylinder block and which distributes a cooling flow towards a water chamber, on the one hand, and upwards towards a cylinder head, on the other hand 'somewhere else.

Modes de réalisation de l'inventionEmbodiments of the Invention

La présente invention est décrite avec des réalisations particulières et des références à des figures mais l'invention n'est pas limitée par celles-ci. Les dessins ou figures décrits ne sont que schématiques et ne sont pas limitants.The present invention is described with particular embodiments and references to figures, but the invention is not limited thereto. The drawings or figures described are only schematic and are not limiting.

Dans le contexte du présent document, les termes « premier » et « deuxième » servent uniquement à différencier les différents éléments et n'impliquent pas d'ordre entre ces éléments.In the context of this document, the terms "first" and "second" are used only to differentiate the different elements and do not imply an order between these elements.

Sur les figures, les éléments identiques ou analogues peuvent porter les mêmes références.In the figures, identical or similar elements may bear the same references.

Un déflecteur 10 selon l'invention comprend un corps 11 de déflecteur s'étendant principalement selon une première direction 101 qui est une direction verticale lorsque le déflecteur 10 est en place dans un moteur disposé de façon habituelle, c'est-à-dire avec un joint de culasse 40 situé horizontalement au-dessus d'un carter cylindres 50 et une culasse 60 située au-dessus du joint de culasse 40 (voir figure 3b par exemple). La première direction 101 est essentiellement parallèle aux axes des cylindres 53 du moteur.A deflector 10 according to the invention comprises a deflector body 11 extending mainly along a first direction 101 which is a vertical direction when the deflector 10 is in place in an engine arranged in the usual way, that is to say with a cylinder head gasket 40 located horizontally above a cylinder block 50 and a cylinder head 60 located above the cylinder head gasket 40 (see figure 3b for example). The first direction 101 is essentially parallel to the axes of the cylinders 53 of the engine.

Le carter cylindres 50 comporte au moins un cylindre qui est refroidi par au moins une chambre 51 d'eau formée dans le carter 50. Le déflecteur 10 est agencé dans la chambre 51 d'eau de manière à répartir le flux F1 du liquide de refroidissement en un premier flux F2 dirigé vers la paroi cylindrique interne de la chambre 51 d'eau, d'une part, et en un deuxième flux F3 dirigé vers la culasse, d'autre part. Ceci permet d'optimiser le refroidissement du cylindre et de la culasse. De ce fait, et comme illsutré aux figures 3b et 4b, ladite culasse comprend un conduit de refroidissement dont une ouverture en vis-à-vis du carter-cylindres est formée sensiblement au droit de la chambre 51 d'eau du carter-cylindres dans laquelle est agencé le déflecteur 10.The cylinder block 50 comprises at least one cylinder which is cooled by at least one water chamber 51 formed in the housing 50. The deflector 10 is arranged in the water chamber 51 so as to distribute the flow F1 of the cooling liquid in a first flow F2 directed towards the internal cylindrical wall of the chamber 51 of water, on the one hand, and in a second flow F3 directed towards the cylinder head, on the other hand. This makes it possible to optimize the cooling of the cylinder and the cylinder head. As a result, and as illustrated in figure 3b and 4b , said cylinder head comprises a cooling duct of which an opening facing the cylinder block is formed substantially in line with the water chamber 51 of the cylinder block in which the deflector 10 is arranged.

Le corps 11 du déflecteur est interposé entre une conduite d'arrivée du flux F1 fluide de refroidissement de la chambre 51 d'eau.The body 11 of the deflector is interposed between an inlet conduit for the cooling fluid flow F1 of the chamber 51 of water.

Le corps 11 du déflecteur s'étend aussi dans une deuxième direction 102 et dans une troisième direction 103. Son extension dans la troisième direction 103 est préférentiellement moindre que dans la première direction 101 et son extension dans la deuxième direction 102 est préférentiellement moindre que dans la troisième direction 103. Le corps 11 du déflecteur comprend préférentiellement un trou 12 le traversant sensiblement selon la deuxième direction 102. Le trou 12 permet la circulation de fluide de refroidissement depuis la conduite 52 d'arrivée vers la chambre 51 d'eau.The body 11 of the deflector also extends in a second direction 102 and in a third direction 103. Its extension in the third direction 103 is preferably less than in the first direction 101 and its extension in the second direction 102 is preferably less than in the third direction 103. The body 11 of the deflector preferably comprises a hole 12 passing through it substantially in the second direction 102. The hole 12 allows the circulation of cooling fluid from the pipe 52 of arrival towards the chamber 51 of water.

La partie supérieure du corps 11 du déflecteur 10 forme une cloison qui sépare un conduit 54 de déviation d'une partie F3 du flux de fluide de refroidissement vers la culasse 60 et la chambre 51 d'eau.The upper part of the body 11 of the deflector 10 forms a partition which separates a duct 54 for deflecting a part F3 of the flow of cooling fluid towards the cylinder head 60 and the chamber 51 of water.

Une première fonction du déflecteur 10 est de diriger un écoulement de liquide de refroidissement afin de refroidir efficacement des parois de chambres 51 du carter cylindres 50. Le déflecteur 10 est préférentiellement disposé dans le moteur de façon à ce qu'une première partie du liquide de refroidissement soit dirigée à travers le trou 12 sensiblement selon la deuxième direction 102. Après avoir franchi le trou 12, le fluide de refroidissement est circule autour du carter-cylindres par exemple selon une direction sensiblement transversale par rapport à la deuxième direction 102. Le trou 12 présente une section adaptée pour ajuster le débit de fluide de refroidissement vers lesdites chambres 51.A first function of the deflector 10 is to direct a flow of coolant in order to effectively cool the walls of chambers 51 of the cylinder block 50. The deflector 10 is preferably arranged in the engine so that a first part of the cooling liquid cooling is directed through the hole 12 substantially in the second direction 102. After passing through the hole 12, the cooling fluid is circulated around the cylinder block, for example in a direction substantially transverse to the second direction 102. The hole 12 has a section adapted to adjust the flow of cooling fluid to said chambers 51.

Une deuxième fonction du déflecteur 10 est de diriger une deuxième partie du liquide de fluide de refroidissement vers la culasse 60, et plus particulièrement vers une ouverture 62 d'entrée de conduit de refroidissement de la culasse, comme représentée aux figures 3b et 4b. Le corps 11 du déflecteur 10 présente une géométrie et des dimensions adaptées pour diriger la deuxième partie de fluide de refroidissement selon la première direction 101 vers la culasse 60. Ainsi, une deuxième partie de fluide de refroidissement arrivant par la conduite 52 d'arrivée ne passe pas à travers le trou 12 mais elle est déviée vers le haut selon la première direction 101.A second function of the deflector 10 is to direct a second part of the coolant liquid towards the cylinder head 60, and more particularly towards a cylinder head cooling duct inlet opening 62, as shown in figure 3b and 4b . The body 11 of the deflector 10 has a geometry and dimensions suitable for directing the second part of cooling fluid in the first direction 101 towards the cylinder head 60. Thus, a second part of cooling fluid arriving via the pipe 52 of arrival does not does not pass through the hole 12 but it is deflected upwards in the first direction 101.

Ainsi, il est avantageusement possible de répartir les deux flux F2, F3 de fluide de refroidissement, vers la culasse d'une part et vers les chambres 51 d'eau d'autre part, selon les performances du moteur sans avoir recours à des carter-cylindres munis de conduits de refroidissement spécifiques à chaque performance recherchée. Le remplacement d'un premier déflecteur 10 selon l'invention de dimensions déterminées par un deuxième déflecteur 10 selon l'invention de dimensions différentes suffit à modifier la répartition du flux F1 de fluide de refroidissement vers la culasse d'une part et vers la chambre 51 d'eau d'autre part.Thus, it is advantageously possible to distribute the two flows F2, F3 of cooling fluid, towards the cylinder head on the one hand and towards the water chambers 51 on the other hand, according to the performance of the engine without having recourse to casings -cylinders equipped with cooling ducts specific to each desired performance. The replacement of a first deflector 10 according to the invention of dimensions determined by a second deflector 10 according to the invention of different dimensions suffices to modify the distribution of the flow F1 of cooling fluid towards the cylinder head on the one hand and towards the chamber 51 of water on the other hand.

Le corps 11 du déflecteur a une première extrémité 20 selon la première direction 101, qui est son extrémité supérieure lorsque le déflecteur 10 est en place dans un moteur disposé de façon habituelle. Le corps 11 du déflecteur a une deuxième extrémité 30, opposée à la première extrémité 20 selon la première direction 101, et qui est son extrémité inférieure lorsque déflecteur 10 est en place dans un moteur disposé de façon habituelle.The body 11 of the deflector has a first end 20 along the first direction 101, which is its upper end when the deflector 10 is in place in a motor arranged in the usual way. The body 11 of the deflector has a second end 30, opposite the first end 20 in the first direction 101, and which is its lower end when the deflector 10 is in place in a motor arranged in the usual way.

Le déflecteur 10 comprend un tenon 31 fixé au corps 11 de déflecteur et s'étendant au-delà de la deuxième extrémité 30 du corps 11 de déflecteur selon la première direction 101. Autrement dit, le tenon 31 s'étend en saillie vers le bas à partir du corps 11 du déflecteur. Le tenon 31 est placé dans une mortaise verticale du carter cylindre 50 prévu pour le recevoir et le bloquer selon les deuxièmes 102 et troisième 103 directions. Le tenon 31 a préférentiellement une extension plus grande selon la troisième direction 103 que selon la deuxième direction 102, de façon à bien soutenir le déflecteur 10 soumis à un flux F1 liquide de refroidissement dirigé selon la deuxième direction 102.The deflector 10 comprises a stud 31 fixed to the deflector body 11 and extending beyond the second end 30 of the deflector body 11 in the first direction 101. In other words, the stud 31 projects downwards from the body 11 of the deflector. The tenon 31 is placed in a vertical mortise of the cylinder housing 50 provided to receive it and block it according to the second 102 and third 103 directions. The tenon 31 preferably has a greater extension along the third direction 103 than along the second direction 102, so as to properly support the deflector 10 subjected to a cooling liquid flow F1 directed in the second direction 102.

Le déflecteur 10 comprend en outre une première partie en saillie 21 fixée au corps 11 de déflecteur et s'étendant au moins au-delà de la première extrémité 20 du corps 11 de déflecteur selon la première direction 101. Autrement dit, la première partie en saillie 21 s'étend au moins vers le haut à partir du corps 11 du déflecteur. La première partie en saillie 21 peut en outre s'étendre dans la deuxième 102 et/ou la troisième direction 103. La premier partie en saillie 21 est flexible élastiquement pour se déformer vers le bas, c'est-à-dire selon la première direction 101 en direction du corps 11 du déflecteur, lorsque la culasse 60 ou le joint de culasse 40 est posé(e) sur le déflecteur 10. Ceci permet de contraindre élastiquement le déflecteur 10 vers le bas de manière à garantir que le tenon 31 soit encastré dans la mortaise.The deflector 10 further comprises a first projecting part 21 fixed to the body 11 of the deflector and extending at least beyond the first end 20 of the body 11 of the deflector in the first direction 101. In other words, the first part in projection 21 extends at least upwards from body 11 of the deflector. The first protruding part 21 can also extend in the second 102 and/or the third direction 103. The first protruding part 21 is elastically flexible to deform downwards, that is to say according to the first direction 101 in the direction of the body 11 of the deflector, when the cylinder head 60 or the cylinder head gasket 40 is placed on the deflector 10. This makes it possible to elastically constrain the deflector 10 downwards so as to guarantee that the tenon 31 is embedded in the mortise.

La figure 1 illustre un déflecteur 10 dans un premier mode de réalisation de l'invention. Dans ce premier mode de réalisation, la première partie en saillie 21 comprend une bosse 29 s'étendant selon la première direction 101 sur la première extrémité 20 du corps 11 de déflecteur, et le corps 11 du déflecteur comprend préférentiellement un trou 13 dans lequel la bosse 29 peut s'enfoncer élastiquement lorsqu'une pression vers le bas s'exerce sur elle.The figure 1 illustrates a deflector 10 in a first embodiment of the invention. In this first embodiment, the first projecting part 21 comprises a bump 29 extending along the first direction 101 on the first end 20 of the body 11 of the deflector, and the body 11 of the deflector preferably comprises a hole 13 in which the bump 29 can sink elastically when downward pressure is exerted on it.

Les figures 2a et 2b illustrent un déflecteur 10 dans un deuxième mode de réalisation de l'invention. En particulier, la figure 2b est une coupe verticale selon le segment IIB indiqué à la figure 2a. Dans ce deuxième mode de réalisation, la première partie en saillie 21 comprend une jupe 28 en élastomère s'étendant selon la première direction 101 sur la première extrémité 20 du corps 11 de déflecteur. La jupe 28 s'étend selon la deuxième direction 102 au-dessus de la première extrémité 20 du corps 11 de déflecteur. Lorsque la culasse 60 ou le joint de culasse 40 est posé(e) sur le haut du déflecteur 10, elle (il) pousse la haut de la jupe 28 vers le bas. La jupe 28 se plie alors en se déformant élastiquement vers le bas, ce qui contraint le tenon 31 dans la mortaise.The figures 2a and 2b illustrate a deflector 10 in a second embodiment of the invention. In particular, the figure 2b is a vertical section along segment IIB indicated in figure 2a . In this second embodiment, the first projecting part 21 comprises an elastomer skirt 28 extending along the first direction 101 over the first end 20 of the body 11 of the deflector. The skirt 28 extends in the second direction 102 above the first end 20 of the body 11 of the deflector. When the cylinder head 60 or the cylinder head gasket 40 is placed on the top of the deflector 10, it (he) pushes the top of the skirt 28 downwards. The skirt 28 then bends by elastically deforming downwards, which forces the tenon 31 into the mortise.

La figure 3a illustre un déflecteur 10 dans un troisième mode de réalisation de l'invention. La figure 3a montre un premier 23 et un deuxième 24 bords de la première extrémité 20 du corps 11 de déflecteur. Le premier 23 et le deuxième 24 bords sont essentiellement parallèles à la troisième direction 103. Dans ce troisième mode de réalisation, la première partie en saillie 21 s'étend au-delà du premier bord 23 selon la deuxième direction 102. En outre, le déflecteur 10 comprend une deuxième partie en saillie 22. La deuxième partie en saillie 22 s'étend au-delà de la première extrémité 20 du corps 11 de déflecteur selon la première direction 101 et au-delà du deuxième bord 24 selon la deuxième direction 102 et dans un sens opposé à la première saillie 21. La première 21 et la deuxième 22 parties en saillie sont préférentiellement décalées l'une par rapport à l'autre dans la deuxième direction 102. La première 21 et la deuxième 22 parties en saillie comprennent préférentiellement chacune une protubérance 25 sur leur côté supérieur, de façon à favoriser le contact avec la culasse 60 ou le joint de culasse 40 placé(e) sur le déflecteur 10.The picture 3a illustrates a deflector 10 in a third embodiment of the invention. The picture 3a shows a first 23 and a second 24 edges of the first end 20 of the body 11 of the deflector. The first 23 and the second 24 edges are essentially parallel to the third direction 103. In this third embodiment, the first projecting part 21 extends beyond the first edge 23 along the second direction 102. In addition, the deflector 10 comprises a second projecting part 22. The second projecting part 22 extends beyond the first end 20 of the body 11 of the deflector in the first direction 101 and beyond the second edge 24 in the second direction 102 and in a direction opposite to the first projection 21. The first 21 and the second 22 projecting parts are preferably offset relative to each other in the second direction 102. The first 21 and the second 22 projecting parts comprise preferably each a protrusion 25 on their upper side, so as to promote contact with the cylinder head 60 or the cylinder head gasket 40 placed on the deflector 10.

La figure 3b illustre l'action de la culasse 40 sur les première 21 et deuxième 22 parties en saillie, dans un cas où la culasse 60 est placée sur le déflecteur 10. Le placement de la culasse 60 (illustré par une flèche 61) pousse élastiquement les première 21 et deuxième 22 parties en saillie vers le bas (mouvement illustré par les flèches 210, 220). Il est aussi possible, tout en restant dans le cadre de l'invention, que ce soit le joint de culasse 40 qui soit placé sur le déflecteur 10 et pousse les première 21 et deuxième 22 parties en saillie vers le bas.The figure 3b illustrates the action of the yoke 40 on the first 21 and second 22 projecting parts, in a case where the yoke 60 is placed on the deflector 10. The placement of the yoke 60 (illustrated by an arrow 61) elastically pushes the first 21 and second 22 parts projecting downwards (movement illustrated by the arrows 210, 220). It is also possible, while remaining within the scope of the invention, for it to be the cylinder head gasket 40 which is placed on the deflector 10 and pushes the first 21 and second 22 projecting parts downwards.

La figure 4a illustre un déflecteur 10 dans un quatrième mode de réalisation de l'invention. La figure 4a montre un premier 23 et un deuxième 24 bords de la première extrémité 20 du corps 11 de déflecteur. Le premier 23 et le deuxième 24 bords sont essentiellement parallèles à la troisième direction 103. Dans ce quatrième mode de réalisation, la première partie en saillie 21 est formée par une partie découpée 26 de la première extrémité 20 du corps 11 de déflecteur sur le premier bord 23. Le déflecteur 10 comprend en outre une deuxième partie en saillie 22 formée par une partie découpée 27 de la première extrémité 20 du corps 11 de déflecteur sur le deuxième bord 24.The figure 4a illustrates a deflector 10 in a fourth embodiment of the invention. The figure 4a shows a first 23 and a second 24 edges of the first end 20 of the deflector body 11. The first 23 and the second 24 edges are essentially parallel to the third direction 103. In this fourth embodiment, the first projecting part 21 is formed by a cutout part 26 of the first end 20 of the deflector body 11 on the first edge 23. The deflector 10 further comprises a second projecting portion 22 formed by a cutout portion 27 of the first end 20 of the deflector body 11 on the second edge 24.

La figure 4b est une coupe verticale selon le segment IVB indiqué à la figure 4a. La figure 4b illustre l'action de la culasse 40 sur la première 21 partie en saillie, dans un cas où la culasse 60 est placée sur le déflecteur 10. Le placement de la culasse 60 (illustré par une flèche 61) pousse la première partie 21 en saillie vers le bas (mouvement illustré par la flèche 210) avec une déformation élastique. En même temps, la deuxième partie en saillie 22 est aussi poussée vers le bas avec une déformation élastique. Cela crée une contrainte verticale sur le tenon 31 qui le force à rester dans la mortaise. Il est aussi possible, tout en restant dans le cadre de l'invention, que ce soit le joint de culasse 40 qui soit placé sur le déflecteur 10 et pousse les première 21 et deuxième 22 parties en saillie vers le bas.The figure 4b is a vertical section along the IVB segment indicated in figure 4a . The figure 4b illustrates the action of the bolt 40 on the first 21 part projecting, in a case where the yoke 60 is placed on the deflector 10. The placement of the yoke 60 (illustrated by an arrow 61) pushes the first projecting part 21 downwards (movement illustrated by the arrow 210) with a elastic deformation. At the same time, the second projecting part 22 is also pushed down with an elastic deformation. This creates a vertical constraint on the tenon 31 which forces it to stay in the mortise. It is also possible, while remaining within the scope of the invention, for it to be the cylinder head gasket 40 which is placed on the deflector 10 and pushes the first 21 and second 22 projecting parts downwards.

La figure 5 illustre le placement, selon une première méthode de placement, d'un déflecteur 10 selon un mode de réalisation de l'invention. Le joint de culasse 40 a déjà été disposé sur le carter cylindres 50. Le joint de culasse 40 comprend une découpe 41 de joint permettant un passage du déflecteur 10. La découpe 41 de joint est préférentiellement prévue pour recevoir la première extrémité 20 du corps 11 de déflecteur, de façon à ce que la première partie en saillie 21, et la deuxième 22 si elle est présente, dépasse(nt) légèrement du joint de culasse 40 vers le haut. La culasse 60 est mise place au-dessus du joint de culasse 40, repoussant vers le bas la ou les partie(s) en saillie 21, 22. La découpe 41 de joint aide au guidage du déflecteur 10 lors de sa mise en place.The figure 5 illustrates the placement, according to a first placement method, of a deflector 10 according to one embodiment of the invention. The cylinder head gasket 40 has already been placed on the cylinder block 50. The cylinder head gasket 40 comprises a gasket cutout 41 allowing passage of the deflector 10. The gasket cutout 41 is preferably provided to receive the first end 20 of the body 11 of deflector, so that the first protruding part 21, and the second 22 if it is present, protrudes slightly upwards from the cylinder head gasket 40. The cylinder head 60 is placed above the cylinder head gasket 40, pushing down the projecting part(s) 21, 22. The gasket cutout 41 helps to guide the deflector 10 during its installation.

Le déflecteur 10 selon n'importe lequel des premier, deuxième, troisième ou quatrième modes de réalisation de l'invention est compatible avec la découpe 41 de joint.The deflector 10 according to any of the first, second, third or fourth embodiments of the invention is compatible with the cutout 41 of the gasket.

La figure 6 illustre un déflecteur 10 selon un mode de réalisation de l'invention. Le déflecteur 10 comprend préférentiellement des nervures 12 verticales, par exemple sur chacun de ses côtés selon la troisième direction 103. Le carter cylindre 50 correspondant comprend des rainures (non-montrées) verticales permettant de recevoir les nervures 12.The figure 6 illustrates a deflector 10 according to one embodiment of the invention. The deflector 10 preferably comprises vertical ribs 12, for example on each of its sides in the third direction 103. The corresponding cylinder block 50 comprises vertical grooves (not shown) making it possible to receive the ribs 12.

En variante non représentée de l'invention, les nervures sont agencées de manière asymétrique pour permettre un détrompage lors de la mise en place du déflecteur 10.In a variant of the invention, not shown, the ribs are arranged asymmetrically to allow polarization when the deflector 10 is put in place.

Les nervures 12 aident au guidage du déflecteur 10 lors de sa mise en place. Le joint de culasse 40 ne comprend alors potentiellement pas de découpe 41 (visible à la figure 5), et le déflecteur 10 peut être mis en place avant le placement du joint de culasse 40, selon une deuxième méthode de placement du déflecteur 10. Selon la deuxième méthode de placement du déflecteur 10, le joint de culasse 40 est mis place au-dessus du carter cylindres 50 après placement du déflecteur 10, repoussant vers le bas la ou les partie(s) en saillie 21, 22. Le fait que les parties en saillie 21, 22 se déforment élastiquement en étant poussées vers le bas crée une contrainte vertical sur le tenon 31 qui le force à rester dans la mortaise. Cela permet que le déflecteur 10 soit particulièrement facile à installer et résiste particulièrement bien à une pression de flux horizontale.The ribs 12 help guide the deflector 10 when it is put in place. The cylinder head gasket 40 then potentially comprises no cutout 41 (visible on figure 5 ), and the deflector 10 can be placed before the placement of the cylinder head gasket 40, according to a second method of placement of the deflector 10. According to the second method of placement of the deflector 10, the cylinder head gasket 40 is placed above above the cylinder block 50 after placement of the deflector 10, pushing down the protruding part(s) 21, 22. The fact that the protruding parts 21, 22 deform elastically when pushed downwards creates a stress vertical on the tenon 31 which forces it to remain in the mortise. This allows the deflector 10 to be particularly easy to install and to withstand horizontal flow pressure particularly well.

Le déflecteur 10 selon n'importe lequel des premier, deuxième, troisième ou quatrième modes de réalisation de l'invention peut comprendre des nervures 12.The deflector 10 according to any of the first, second, third or fourth embodiments of the invention may include ribs 12.

La présente invention a été décrite en relation avec des modes de réalisations spécifiques, qui ont une valeur purement illustrative et ne doivent pas être considérés comme limitatifs. D'une manière générale, la présente invention n'est pas limitée aux exemples illustrés et/ou décrits ci-dessus. L'usage des verbes « comprendre », « inclure », « comporter », ou toute autre variante, ainsi que leurs conjugaisons, ne peut en aucune façon exclure la présence d'éléments autres que ceux mentionnés. L'usage de l'article indéfini « un », « une », ou de l'article défini « le », « la » ou « l' », pour introduire un élément n'exclut pas la présence d'une pluralité de ces éléments. Les numéros de référence dans les revendications ne limitent pas leur portée.The present invention has been described in relation to specific embodiments, which are purely illustrative and should not be construed as limiting. In general, the present invention is not limited to the examples illustrated and/or described above. The use of the verbs "understand", "include", "compose", or any other variant, as well as their conjugations, can in no way exclude the presence of elements other than those mentioned. The use of the indefinite article "un", "une", or of the definite article "le", "la" or "l'", to introduce an element does not exclude the presence of a plurality of these elements. The reference numbers in the claims do not limit their scope.

Claims (9)

  1. Engine, in particular a diesel engine, comprising:
    - a cylinder head gasket (40),
    - a cylinder block (50) comprising a water chamber (51),
    - a deflector (10) for cooling liquid that is arranged in the water chamber (51) and that comprises a deflector body (11) intended to direct a flow of a cooling liquid, the deflector body (11) extending in a first direction (101) and having a first end (20) and a second end (30), the first end (20) being essentially opposite the second end (30) in the first direction (101),
    characterized in that
    • the deflector (10) comprises a tenon (31) fastened to the deflector body (11) and extending beyond the second end (30) of the deflector body (11) in the first direction (101), and
    • the deflector (10) comprises a first protruding part (21) that is elastically deformable in the first direction (101) and fastened to the deflector body (11) and extends beyond the first end (20) of the deflector body (11) in the first direction (101)
    • and in that the water chamber is equipped with a mortise arranged to receive the tenon (31) of the deflector (10), the first protruding part (21) being intended to protrude above the cylinder block (50) so as to be able to be deformed by the putting in place of the cylinder head (60) or of the cylinder head gasket (40).
  2. Engine according to Claim 1, characterized in that the deflector body (11) comprises a through-hole (12) in a first cooling direction.
  3. Engine according to Claim 1 or 2, characterized in that the first protruding part (21) comprises a boss (29) extending in the first direction (101) on the first end (20) of the deflector body (11).
  4. Engine according to Claim 1 or 2, characterized in that the first protruding part (21) comprises a skirt (28) made of elastomer fastened to a part of a perimeter of the first end (20) of the deflector body (11).
  5. Engine according to Claim 1 or 2, characterized in that the first protruding part (21) also extends beyond a first edge (23) of the first end (20) of the deflector body (11) in a second direction (102) perpendicular to the first direction (101); and also comprising a second protruding part (22) extending beyond the first end (20) of the deflector body (11) in the first direction (101), which is elastically deformable in the first direction (101), and also extending beyond a second edge (24) of the first end (20) of the deflector body (11) in the second direction (102), the second edge (24) being essentially opposite the first edge (23) in the second direction (102).
  6. Engine according to Claim 5, characterized in that the first protruding part (21) and the second protruding part (22) each comprise a protuberance (25) situated on a side of the protruding part (21, 22) that faces away from the deflector body (11).
  7. Engine according to Claim 1 or 2, characterized in that the first protruding part (21) is formed by a cut-out part (26) of the first end (20) of the deflector body (11) that is situated on a first edge (23) of the first end (20) of the deflector body (11) in a second direction (102) perpendicular to the first direction (101); and also comprising a second protruding part (22) that is elastically deformable in the first direction (101) and formed by a cut-out part (27) of the first end (20) of the deflector body (11) that is situated on a second edge (24) of the first end (20) of the deflector body (11) in the second direction (102), the second edge (24) being essentially opposite the first edge (23) in the second direction (102).
  8. Engine according to any one of the preceding Claims 1 to 7, characterized in that the cylinder head gasket (40) comprises a gasket cut-out (41) arranged to allow the deflector body (11) to pass through and receiving the first end (20) of the deflector body (11) and in that the first protruding part (21), and the optional second protruding part (22), protrude(s) from the cylinder head gasket (40) so as to be able to be deformed by the putting in place of a cylinder head (60) on the cylinder head gasket (40).
  9. Engine according to any one of the preceding Claims 1 to 8, characterized in that the deflector (10) also comprises ribs (12) extending essentially in the first direction (101) and in that the cylinder block (50) comprises grooves extending essentially in the first direction (101) and arranged to receive the ribs (12) of the deflector (10).
EP17777307.4A 2016-10-12 2017-09-14 Coolant deflector Active EP3526461B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1659847A FR3057304B1 (en) 2016-10-12 2016-10-12 "COOLANT DEFLECTOR"
PCT/FR2017/052448 WO2018069590A1 (en) 2016-10-12 2017-09-14 Coolant deflector

Publications (2)

Publication Number Publication Date
EP3526461A1 EP3526461A1 (en) 2019-08-21
EP3526461B1 true EP3526461B1 (en) 2022-05-25

Family

ID=57590658

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17777307.4A Active EP3526461B1 (en) 2016-10-12 2017-09-14 Coolant deflector

Country Status (3)

Country Link
EP (1) EP3526461B1 (en)
FR (1) FR3057304B1 (en)
WO (1) WO2018069590A1 (en)

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JP2007127066A (en) * 2005-11-04 2007-05-24 Toyota Motor Corp Cooling structure and water passage forming member for internal combustion engine

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JP3936247B2 (en) * 2002-06-12 2007-06-27 トヨタ自動車株式会社 Engine cooling system
JP4149322B2 (en) * 2003-07-11 2008-09-10 愛三工業株式会社 Water jacket spacer and cylinder block provided with the spacer
JP4153389B2 (en) * 2003-09-09 2008-09-24 トヨタ自動車株式会社 Cylinder block cooling structure
JP4845620B2 (en) * 2006-07-21 2011-12-28 トヨタ自動車株式会社 Heat medium passage partition member for cooling internal combustion engine, internal combustion engine cooling structure, and internal combustion engine cooling structure forming method
JP4462246B2 (en) * 2006-07-21 2010-05-12 三菱自動車工業株式会社 Cooling structure for multi-cylinder internal combustion engine
JP4851258B2 (en) * 2006-07-31 2012-01-11 トヨタ自動車株式会社 Heat medium passage partition member for cooling internal combustion engine, internal combustion engine cooling mechanism, and internal combustion engine cooling mechanism forming method
FR2905423B1 (en) 2006-09-06 2008-10-10 Peugeot Citroen Automobiles Sa DEVICE FOR DISPENSING COOLANT IN A MOTOR VEHICLE ENGINE
KR101163824B1 (en) * 2009-04-07 2012-07-09 현대자동차주식회사 Cooling device and insert for water jacket of internal combustion engine
JP2011106387A (en) * 2009-11-19 2011-06-02 Honda Motor Co Ltd Cooling structure for internal combustion engine
JP5091989B2 (en) * 2010-08-03 2012-12-05 本田技研工業株式会社 Spacer
JP6277399B2 (en) * 2013-10-11 2018-02-14 内山工業株式会社 Water jacket spacer manufacturing method

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JP2007127066A (en) * 2005-11-04 2007-05-24 Toyota Motor Corp Cooling structure and water passage forming member for internal combustion engine

Also Published As

Publication number Publication date
EP3526461A1 (en) 2019-08-21
FR3057304A1 (en) 2018-04-13
WO2018069590A1 (en) 2018-04-19
FR3057304B1 (en) 2019-11-15

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