WO2011076538A1 - Gas supply module for a motor vehicle engine, assembly of an engine head and such a module and heat engine comprising such an assembly - Google Patents

Gas supply module for a motor vehicle engine, assembly of an engine head and such a module and heat engine comprising such an assembly Download PDF

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Publication number
WO2011076538A1
WO2011076538A1 PCT/EP2010/068774 EP2010068774W WO2011076538A1 WO 2011076538 A1 WO2011076538 A1 WO 2011076538A1 EP 2010068774 W EP2010068774 W EP 2010068774W WO 2011076538 A1 WO2011076538 A1 WO 2011076538A1
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WO
WIPO (PCT)
Prior art keywords
engine
module
valve
heat exchanger
cylinder head
Prior art date
Application number
PCT/EP2010/068774
Other languages
French (fr)
Inventor
Samuel Leroux
Original Assignee
Valeo Systemes Thermiques
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Publication date
Application filed by Valeo Systemes Thermiques filed Critical Valeo Systemes Thermiques
Publication of WO2011076538A1 publication Critical patent/WO2011076538A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
    • F02B29/04—Cooling of air intake supply
    • F02B29/045—Constructional details of the heat exchangers, e.g. pipes, plates, ribs, insulation, materials, or manufacturing and assembly
    • F02B29/0475—Constructional details of the heat exchangers, e.g. pipes, plates, ribs, insulation, materials, or manufacturing and assembly the intake air cooler being combined with another device, e.g. heater, valve, compressor, filter or EGR cooler, or being assembled on a special engine location
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/12—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems characterised by means for attaching parts of an EGR system to each other or to engine parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/17—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the intake system
    • F02M26/21—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the intake system with EGR valves located at or near the connection to the intake system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
    • F02B29/04—Cooling of air intake supply
    • F02B29/045—Constructional details of the heat exchangers, e.g. pipes, plates, ribs, insulation, materials, or manufacturing and assembly
    • F02B29/0462—Liquid cooled heat exchangers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Definitions

  • Module for supplying gas to a motor vehicle engine, a cylinder head assembly of an engine and such a module and a heat engine comprising such an assembly.
  • the invention relates to a gas supply module for a motor vehicle engine, an assembly of a cylinder head of an engine and of such a module, and a heat engine comprising such an assembly.
  • the invention relates more particularly to a gas supply module of an engine comprising a heat exchanger suitable for cooling the gases for admission into an engine cylinder head and a gas supply valve capable of guiding the gases. at least through ⁇ heat exchanger.
  • a motor vehicle engine has a combustion chamber, generally formed by a plurality of cylinders, in which a mixture of oxidant and fuel is burned to generate the engine work.
  • the oxidant comprises air, which can be compressed or not, depending on whether the engine comprises a turbocharger or not.
  • the air can also be mixed with exhaust gases: it is called recirculated exhaust gas.
  • the gases admitted to the combustion chamber will be referred to as the feed gas.
  • intake manifold often designated by the skilled person under its English name "intake manifold”.
  • intake manifold is attached to the cylinder head of the engine, at the inlet of the cylinders.
  • the intake gases can be cooled, in whole or in part, or not. Consequently, it is known to provide two pipes supplying the distributor: one directly conveying the feed gas into the distributor, the other routing it indirectly via a heat exchanger, which allows the gases passing through it to be cooled, or in some cases to warm them up.
  • a gas supply module of an engine comprising a heat exchanger suitable for cooling the gases for admission into a cylinder head of the engine and a gas supply valve capable of guiding the gases at least through the heat exchanger.
  • a gas supply valve capable of guiding the gases at least through the heat exchanger.
  • the invention aims to provide a gas supply module of an engine having good resistance to stress due to the support of the valve without penalizing the size of the heat exchanger.
  • the module comprises a means for supporting the valve having a first and a second end, the first end being secured to the valve and the second end being adapted to be fixed to the engine.
  • a module makes it possible to move, thanks to the support means specific to the valve and to its particular positioning, most of the constraints related to the support of the valve at the level of the engine and, more particularly at the level of the block of the latter.
  • the heat exchanger comprises at least one housing and an inlet manifold for said gases in the heat exchanger, the valve being subjected to the heat exchanger at said inlet manifold,
  • the valve comprises a first element and a valve body, the first element being attached to said valve body so as to form a first outlet of the valve towards the heat exchanger,
  • the module further comprises an interface element able to close an input volume of the cylinder head, and -
  • the interface element comprises a periphery and has at least one protuberance disposed at the periphery, the protuberance being adapted to receive a fixing means, said first means, adapted to fix the module on said cylinder head.
  • the invention also relates to an assembly of a cylinder head of a motor vehicle engine and a module as previously described, together in which the cylinder head has orifices adapted to cooperate with first fastening means for fastening purposes. module on the cylinder head.
  • the invention also relates to a motor vehicle engine comprising a combustion chamber, an engine block and an assembly of a cylinder head and a gas supply module of an engine as previously described, engine in which the Valve support means is secured to the engine block.
  • FIG. 1 represents an assembled perspective view of a gas supply module according to the invention
  • FIG. 2 represents a view from above of a gas supply module according to the invention.
  • the invention relates to a module 10 for supplying gas to an engine which comprises a heat exchanger 12 adapted to cool the gases for admission into a cylinder head of the engine and a gas supply valve 14 capable of guiding said gases at least through ⁇ heat exchanger 12.
  • the gas supply valve 14 adapted to direct said gases at least through heat exchanger 12 will be referred to in the following description of the gas supply valve of the heat exchanger 12.
  • the valve 14 for supplying gas to the heat exchanger 12 is, in this embodiment, an actuator provided with a butterfly (or flap). The latter makes it possible to dose the amount of air passing through the heat exchanger 12 and / or to quench the engine.
  • the gas supply valve 14 of the heat exchanger 12 comprises, here, at least one valve body 26 and a first element 28.
  • the valve body 26 has an inlet 30 for the gases in the valve 14. supply of gas to the heat exchanger 12.
  • the first member 28 is attached to the valve body 26 so as to form a first output of the supply valve 14 to the heat exchanger 12.
  • the first member 28 allows indirect introduction of gases into the the cylinder head of the engine via the first element 28 which imposes a path via the heat exchanger 12.
  • the first element 28 comprises a distal end of the valve body 26 provided with a fixing flange adapted to cooperate with an inlet diffuser box 20 of the heat exchanger 12.
  • the module further comprises a support means 16 of the gas supply valve 14 of the heat exchanger 12.
  • the support means 16 comprises a first 16-1 and a second 16-2 ends .
  • the support means 16 of the gas supply valve 14 is distinct from the heat exchanger 12. It is an additional part which has no heat exchange function.
  • This support means 16 allows, according to the invention, to support the weight of the gas supply valve 14 of the heat exchanger 12.
  • the invention provides a support means 16 specific to the feed valve 14 which transfers the support of the weight of the feed valve 14 to the engine and not only to the gas supply module 10 resulting in a design of the heat exchanger 12 less cumbersome than those known from the prior art.
  • the first end 16-1 is subject to the gas supply valve 14 of the heat exchanger 12 and the second end 16-2 is, in turn, adapted to be fixed to the engine and more particularly to the block engine of the latter. More specifically, the support means 16 of the valve 14 is secured at the level of the valve body 26. In the illustrated embodiment, the feed valve 14 has an outgrowth adapted to cooperate with the first end 16-1 of the means support 16.
  • the support means 16 is in the form of a bracket (or stand).
  • the heat exchanger 12 comprises, here, at least one housing 18 and an inlet manifold 20 (also called diffuser box) for the gases in the heat exchanger 12.
  • the housing 18 is secured to an interface element 22 (described later), for example by soldering or welding.
  • the housing 18 is formed by four metal plates, for example aluminum, assembled to each other, for example, by brazing.
  • the plates of the housing 18 form an envelope comprising four so-called solid faces and two so-called free faces.
  • the free faces of the housing 18 are located opposite one another.
  • a heat exchange bundle (not shown) is inserted in the housing 18.
  • This bundle may, for example be made in the form of a stack of plates, not shown, providing a passage for the feed gases and a passage for a coolant.
  • the diffuser box 20 for the feed gases is attached to one of the free faces of the housing 18 while the interface element 22 is attached to the other free face.
  • the interface element 22 is able to close an input volume of the cylinder head.
  • This interface element 22 is here intended to be in immediate / direct contact with the cylinder head of the engine.
  • the interface element 22 is mounted directly on the cylinder head of the engine.
  • the interface element 22 closing the volume of the cylinder head defines a first passage for gases leaving the heat exchanger 12 and a second passage for gases having passed through a suitable valve 24. directing gases, more particularly recirculated exhaust gas, directly introduced into the cylinder head of the engine without passing through the heat exchanger 12.
  • the valve 24 will be referred to as EGR valve 24 thereafter.
  • the EGR valve 24 has an inlet for the gases and at least one outlet allowing the gases (more particularly the recirculated exhaust gases) to enter the inlet volume of the cylinder head.
  • the EGR valve 24 has at its end connected to the interface element 22 a fixing flange 25.
  • the interface element 22 is in the form of an interface plate 22.
  • a non-illustrated embodiment proposes that the interface element 22 be a collecting box, preferably an outlet (also called distribution box), of the heat exchanger 12.
  • the interface element 22 has a periphery and has at least one protuberance 32 disposed at the periphery.
  • the protrusion 32 is adapted to receive a fixing means (not shown), said first fixing means, adapted to fix the gas supply module 10 on the cylinder head.
  • the gas supply valve 14 of the heat exchanger 12 is subjected to the heat exchanger 12 at the inlet diffuser box 20, here, via screw.
  • the connection between the gas supply valve 14 of the heat exchanger 12 and the heat exchanger 12 is effected via the first element 28.
  • the invention also relates to an assembly of a cylinder head of a motor vehicle engine and a gas supply module 10 as previously described, together in which the cylinder head has orifices adapted to cooperate with the first means of fixing for fixing the gas supply module 10 on the cylinder head.
  • the invention also relates to a motor vehicle engine comprising a combustion chamber, an engine block and an assembly of a cylinder head and a gas supply module 10 of an engine as previously described, the means of support 16 of the gas supply valve 14 of the heat exchanger 12 being secured to the engine block.

Abstract

The invention relates to a gas supply module (10) for an engine comprising a heat exchanger (12) capable of cooling said gas with a view to the intake thereof into an engine head, and a gas supply valve (14) capable of directing said gas through at least said heat exchanger (12). According to the invention, said module (10) further comprises means (16) for supporting said valve (14), comprising first (16-1) and second (16-2) ends, said first end (16-1) being fastened to said valve (14) and said second end (16-2) being capable of being attached to said engine. The invention also relates to an assembly of an engine head and such a module and a heat engine comprising such an assembly. The invention is applicable, in particular, to the automotive field.

Description

Module d'alimentation en gaz d'un moteur de véhicule automobile, ensemble d'une culasse d'un moteur et d'un tel module et moteur thermique comportant un tel ensemble.  Module for supplying gas to a motor vehicle engine, a cylinder head assembly of an engine and such a module and a heat engine comprising such an assembly.
L'invention concerne un module d'alimentation en gaz d'un moteur de véhicule automobile, un ensemble d'une culasse d'un moteur et d'un tel module, et un moteur thermique comportant un tel ensemble. The invention relates to a gas supply module for a motor vehicle engine, an assembly of a cylinder head of an engine and of such a module, and a heat engine comprising such an assembly.
L'invention concerne plus particulièrement un module d'alimentation en gaz d'un moteur comportant un échangeur de chaleur apte à refroidir les gaz en vue de leur admission dans une culasse du moteur et une vanne d'alimentation en gaz apte à orienter les gaz au moins au travers de Γ échangeur de chaleur. The invention relates more particularly to a gas supply module of an engine comprising a heat exchanger suitable for cooling the gases for admission into an engine cylinder head and a gas supply valve capable of guiding the gases. at least through Γ heat exchanger.
Un moteur thermique de véhicule automobile comporte une chambre de combustion, généralement formée par une pluralité de cylindres, dans laquelle un mélange de comburant et de carburant est brûlé pour générer le travail du moteur. Le comburant comporte de l'air, qui peut être comprimé ou non, selon que le moteur comporte un turbocompresseur ou non. L'air peut par ailleurs être mélangé à des gaz d'échappement: on parle de gaz d'échappement recirculés. Les gaz admis dans la chambre de combustion seront dénommés gaz d'alimentation. A motor vehicle engine has a combustion chamber, generally formed by a plurality of cylinders, in which a mixture of oxidant and fuel is burned to generate the engine work. The oxidant comprises air, which can be compressed or not, depending on whether the engine comprises a turbocharger or not. The air can also be mixed with exhaust gases: it is called recirculated exhaust gas. The gases admitted to the combustion chamber will be referred to as the feed gas.
Il est connu que les gaz d'alimentation soient reçus au niveau d'un répartiteur d'admission, souvent désigné par l'homme du métier sous sa dénomination anglaise "intake manifold". Le répartiteur d'admission est fixé sur la culasse du moteur, au niveau de l'entrée des cylindres. En fonction du régime moteur, les gaz d'admission peuvent être refroidis, en tout ou partie, ou pas. En conséquence, il est connu de prévoir deux canalisations alimentant le répartiteur : l'une acheminant directement les gaz d'alimentation dans le répartiteur, l'autre les acheminant indirectement via un échangeur de chaleur, qui permet de refroidir les gaz qui le traverse, ou dans certains cas de les réchauffer. II est aussi connu un module d'alimentation en gaz d'un moteur comportant un échangeur de chaleur apte à refroidir les gaz en vue de leur admission dans une culasse du moteur et une vanne d'alimentation en gaz apte à orienter les gaz au moins au travers de l'échangeur de chaleur. Dans cet art antérieur, il est prévu qu'une des boites collectrices de l'échangeur de chaleur supporte la vanne. Le support de la vanne entraîne des contraintes au niveau de la boite collectrice. Ces contraintes sont liées aux vibrations et aux tensions occasionnées par le poids de la vanne, auxquelles peuvent s'ajouter, en plus, des contraintes liées à la circulation des gaz d'alimentation comprimés traversant dans la boite collectrice de l'échangeur de chaleur. It is known that the feed gases are received at an intake manifold, often designated by the skilled person under its English name "intake manifold". The intake manifold is attached to the cylinder head of the engine, at the inlet of the cylinders. Depending on the engine speed, the intake gases can be cooled, in whole or in part, or not. Consequently, it is known to provide two pipes supplying the distributor: one directly conveying the feed gas into the distributor, the other routing it indirectly via a heat exchanger, which allows the gases passing through it to be cooled, or in some cases to warm them up. It is also known a gas supply module of an engine comprising a heat exchanger suitable for cooling the gases for admission into a cylinder head of the engine and a gas supply valve capable of guiding the gases at least through the heat exchanger. In this prior art, it is expected that one of the manifolds of the heat exchanger supports the valve. The support of the valve causes stresses at the collector box. These constraints are related to the vibrations and tensions caused by the weight of the valve, which can be added, in addition, constraints related to the flow of compressed feed gas through the header box of the heat exchanger.
Il est donc nécessaire de prévoir des moyens de rigidification de la boite collectrice pour que cette dernière ne se détériore pas du fait des vibrations ou de la pression des gaz d'alimentation. Une telle configuration n'est pas optimale en terme d'encombrement des boites collectrices. It is therefore necessary to provide means for stiffening the header box so that it does not deteriorate due to vibration or pressure of the feed gas. Such a configuration is not optimal in terms of bulk collector boxes.
L'invention vise à proposer un module d'alimentation en gaz d'un moteur présentant une bonne résistance aux contraintes dues au support de la vanne sans pénalisation de l'encombrement de l'échangeur de chaleur. The invention aims to provide a gas supply module of an engine having good resistance to stress due to the support of the valve without penalizing the size of the heat exchanger.
A cet effet, l'invention propose que le module comporte un moyen de support de la vanne comportant une première et une deuxième extrémités, la première extrémité étant assujettie à la vanne et la deuxième extrémité étant apte à être fixée au moteur. Un tel module permet de déplacer, grâce au moyen de support propre à la vanne et à son positionnement particulier, la plupart des contraintes liées au support de la vanne au niveau du moteur et, plus particulièrement au niveau du bloc de ce dernier. For this purpose, the invention proposes that the module comprises a means for supporting the valve having a first and a second end, the first end being secured to the valve and the second end being adapted to be fixed to the engine. Such a module makes it possible to move, thanks to the support means specific to the valve and to its particular positioning, most of the constraints related to the support of the valve at the level of the engine and, more particularly at the level of the block of the latter.
Des modes de réalisation particuliers de l'invention proposent que : Particular embodiments of the invention propose that:
- l'échangeur de chaleur comporte au moins un boîtier et une boite collectrice d'entrée pour lesdits gaz dans l'échangeur de chaleur, la vanne étant assujetti à l'échangeur de chaleur au niveau de ladite boite collectrice d'entrée, the heat exchanger comprises at least one housing and an inlet manifold for said gases in the heat exchanger, the valve being subjected to the heat exchanger at said inlet manifold,
- la vanne comporte un premier élément et un corps de vanne, le premier élément étant attaché audit corps de vanne de manière à former une première sortie de la vanne vers l'échangeur de chaleur,  the valve comprises a first element and a valve body, the first element being attached to said valve body so as to form a first outlet of the valve towards the heat exchanger,
- le module comporte en outre un élément d'interface apte à fermer un volume d'entrée de la culasse, et - l'élément d'interface comporte une périphérie et présente au moins une protubérance disposée au niveau de la périphérie, la protubérance étant apte à recevoir un moyen de fixation, dit premier moyen, apte à fixer le module sur ladite culasse. L'invention concerne aussi un ensemble d'une culasse d'un moteur de véhicule automobile et d'un module tel que précédemment décrit, ensemble dans lequel la culasse comporte des orifices aptes à coopérer avec des premiers moyens de fixation en vue de la fixation du module sur la culasse. L'invention concerne également un moteur thermique de véhicule automobile comportant une chambre de combustion, un bloc moteur et un ensemble d'une culasse et d'un module d'alimentation en gaz d'un moteur tel que précédemment décrit, moteur dans lequel le moyen de support de la vanne est assujetti au bloc moteur. L'invention sera mieux comprise à l'aide de la description suivante de la forme de réalisation préférée du dispositif et du moteur de l'invention, en référence aux dessins annexés, sur lesquels: the module further comprises an interface element able to close an input volume of the cylinder head, and - The interface element comprises a periphery and has at least one protuberance disposed at the periphery, the protuberance being adapted to receive a fixing means, said first means, adapted to fix the module on said cylinder head. The invention also relates to an assembly of a cylinder head of a motor vehicle engine and a module as previously described, together in which the cylinder head has orifices adapted to cooperate with first fastening means for fastening purposes. module on the cylinder head. The invention also relates to a motor vehicle engine comprising a combustion chamber, an engine block and an assembly of a cylinder head and a gas supply module of an engine as previously described, engine in which the Valve support means is secured to the engine block. The invention will be better understood with the aid of the following description of the preferred embodiment of the device and the motor of the invention, with reference to the appended drawings, in which:
la figure 1 représente une vue en perspective assemblée d'un module d'alimentation en gaz selon l'invention, et  FIG. 1 represents an assembled perspective view of a gas supply module according to the invention, and
- la figure 2 représente une vue de dessus d'un module d'alimentation en gaz selon l'invention.  FIG. 2 represents a view from above of a gas supply module according to the invention.
L'invention concerne un module 10 d'alimentation en gaz d'un moteur qui comporte un échangeur de chaleur 12 apte à refroidir les gaz en vue de leur admission dans une culasse du moteur et une vanne 14 d'alimentation en gaz apte à orienter lesdits gaz au moins au travers de Γ échangeur de chaleur 12. The invention relates to a module 10 for supplying gas to an engine which comprises a heat exchanger 12 adapted to cool the gases for admission into a cylinder head of the engine and a gas supply valve 14 capable of guiding said gases at least through Γ heat exchanger 12.
La vanne 14 d'alimentation en gaz apte à orienter lesdits gaz au moins au travers de Γ échangeur de chaleur 12 sera dénommée dans la suite de la description vanne d'alimentation en gaz de Γ échangeur de chaleur 12. The gas supply valve 14 adapted to direct said gases at least through heat exchanger 12 will be referred to in the following description of the gas supply valve of the heat exchanger 12.
La vanne 14 d'alimentation en gaz de l'échangeur de chaleur 12 est, dans ce mode de réalisation, un actionneur muni d'un papillon (ou volet). Cette dernière permet de doser la quantité d'air traversant l'échangeur de chaleur 12 et/ou d'étouffer le moteur. La vanne 14 d'alimentation en gaz de l'échangeur de chaleur 12 comporte, ici, au moins un corps de vanne 26 et un premier élément 28. Le corps de vanne 26 présente une entrée 30 pour les gaz dans la vanne 14 d'alimentation en gaz de l'échangeur de chaleur 12. The valve 14 for supplying gas to the heat exchanger 12 is, in this embodiment, an actuator provided with a butterfly (or flap). The latter makes it possible to dose the amount of air passing through the heat exchanger 12 and / or to quench the engine. The gas supply valve 14 of the heat exchanger 12 comprises, here, at least one valve body 26 and a first element 28. The valve body 26 has an inlet 30 for the gases in the valve 14. supply of gas to the heat exchanger 12.
Le premier élément 28 est attaché au corps de vanne 26 de manière à former une première sortie de la vanne d'alimentation 14 vers l'échangeur de chaleur 12. En d'autres termes, le premier élément 28 permet une introduction indirecte des gaz dans la culasse du moteur par l'intermédiaire du premier élément 28 qui impose un trajet via l'échangeur de chaleur 12. The first member 28 is attached to the valve body 26 so as to form a first output of the supply valve 14 to the heat exchanger 12. In other words, the first member 28 allows indirect introduction of gases into the the cylinder head of the engine via the first element 28 which imposes a path via the heat exchanger 12.
Ici, le premier élément 28 comporte une extrémité distale du corps de vanne 26 munie d'une bride de fixation apte à coopérer avec une boite diffuseur 20 d'entrée de l'échangeur de chaleur 12. Here, the first element 28 comprises a distal end of the valve body 26 provided with a fixing flange adapted to cooperate with an inlet diffuser box 20 of the heat exchanger 12.
Selon l'invention, le module comporte en outre un moyen de support 16 de la vanne 14 d'alimentation en gaz de l'échangeur de chaleur 12. Le moyen de support 16 comporte une première 16-1 et une deuxième 16-2 extrémités. According to the invention, the module further comprises a support means 16 of the gas supply valve 14 of the heat exchanger 12. The support means 16 comprises a first 16-1 and a second 16-2 ends .
Autrement dit, le moyen de support 16 de la vanne 14 d'alimentation en gaz est distinct de l'échangeur de chaleur 12. Il s'agit d'une pièce supplémentaire qui n'a pas de fonction d'échange de chaleur. Ce moyen de support 16 permet, selon l'invention, de supporter le poids de la vanne 14 d'alimentation en gaz de l'échangeur de chaleur 12. En d'autres termes, l'invention prévoit un moyen de support 16 propre à la vanne d'alimentation 14 qui permet de transférer le support du poids de la vanne d'alimentation 14 sur le moteur et non plus uniquement sur le module d'alimentation en gaz 10 entraînant un design de l'échangeur de chaleur 12 moins encombrant que ceux connus de l'art antérieur. In other words, the support means 16 of the gas supply valve 14 is distinct from the heat exchanger 12. It is an additional part which has no heat exchange function. This support means 16 allows, according to the invention, to support the weight of the gas supply valve 14 of the heat exchanger 12. In other words, the invention provides a support means 16 specific to the feed valve 14 which transfers the support of the weight of the feed valve 14 to the engine and not only to the gas supply module 10 resulting in a design of the heat exchanger 12 less cumbersome than those known from the prior art.
La première extrémité 16-1 est assujettie à la vanne 14 d'alimentation en gaz de l'échangeur de chaleur 12 et la deuxième extrémité 16-2 est, quant à elle, apte à être fixée au moteur et plus particulièrement au niveau du bloc moteur de ce dernier. Plus précisément, le moyen de support 16 de la vanne 14 est assujetti au niveau du corps de vanne 26. Dans le mode de réalisation illustré, la vanne d'alimentation 14 comporte une excroissance apte à coopérer avec la première extrémité 16-1 du moyen de support 16. The first end 16-1 is subject to the gas supply valve 14 of the heat exchanger 12 and the second end 16-2 is, in turn, adapted to be fixed to the engine and more particularly to the block engine of the latter. More specifically, the support means 16 of the valve 14 is secured at the level of the valve body 26. In the illustrated embodiment, the feed valve 14 has an outgrowth adapted to cooperate with the first end 16-1 of the means support 16.
Dans le mode de réalisation illustré ici, le moyen de support 16 est réalisé sous la forme d'une patte de fixation (ou béquille). In the embodiment illustrated here, the support means 16 is in the form of a bracket (or stand).
L'échangeur de chaleur 12 comporte, ici, au moins un boîtier 18 et une boite collectrice d'entrée 20 (encore appelée boite diffuseur) pour les gaz dans l'échangeur de chaleur 12. The heat exchanger 12 comprises, here, at least one housing 18 and an inlet manifold 20 (also called diffuser box) for the gases in the heat exchanger 12.
Dans le mode de réalisation décrit ici le boîtier 18 est assujetti à un élément d'interface 22 (décrit plus loin), par exemple, par brasage ou soudage. In the embodiment described here the housing 18 is secured to an interface element 22 (described later), for example by soldering or welding.
Ici, le boîtier 18 est formé par quatre plaques métalliques, par exemple en aluminium, assemblées les unes aux autres, par exemple, par brasage. Les plaques du boîtier 18 forment une enveloppe comportant quatre faces dites pleines et deux faces dites libres. Les faces libres du boîtier 18 sont situées en face l'une de l'autre. Here, the housing 18 is formed by four metal plates, for example aluminum, assembled to each other, for example, by brazing. The plates of the housing 18 form an envelope comprising four so-called solid faces and two so-called free faces. The free faces of the housing 18 are located opposite one another.
Un faisceau d'échange de chaleur (non représenté) est inséré dans le boîtier 18. Ce faisceau pourra, par exemple être réalisé sous la forme d'un empilement de plaques, non représentées, ménageant un passage pour les gaz d'alimentation et un passage pour un fluide caloporteur. A heat exchange bundle (not shown) is inserted in the housing 18. This bundle may, for example be made in the form of a stack of plates, not shown, providing a passage for the feed gases and a passage for a coolant.
La boite diffuseur 20 pour les gaz d'alimentation est fixée à une des faces libres du boîtier 18 tandis que l'élément d'interface 22 est fixé à l'autre face libre. L'élément d'interface 22 est apte à fermer un volume d'entrée de la culasse. Cet élément d'interface 22 est, ici, destiné à être en contact immédiat/direct avec la culasse du moteur. En d'autres termes, l'élément d'interface 22 est monté directement sur la culasse du moteur. Dans l'exemple de réalisation illustré ici, l'élément d'interface 22 fermant le volume de la culasse définit un premier passage pour des gaz sortant de l'échangeur de chaleur 12 et un deuxième passage pour des gaz ayant traversé une vanne 24 apte à diriger des gaz, plus particulièrement des gaz d'échappement recirculés, directement introduits dans la culasse du moteur sans passage par l'échangeur de chaleur 12. La vanne 24 sera dénommée par la suite vanne EGR 24. The diffuser box 20 for the feed gases is attached to one of the free faces of the housing 18 while the interface element 22 is attached to the other free face. The interface element 22 is able to close an input volume of the cylinder head. This interface element 22 is here intended to be in immediate / direct contact with the cylinder head of the engine. In other words, the interface element 22 is mounted directly on the cylinder head of the engine. In the exemplary embodiment illustrated here, the interface element 22 closing the volume of the cylinder head defines a first passage for gases leaving the heat exchanger 12 and a second passage for gases having passed through a suitable valve 24. directing gases, more particularly recirculated exhaust gas, directly introduced into the cylinder head of the engine without passing through the heat exchanger 12. The valve 24 will be referred to as EGR valve 24 thereafter.
La vanne EGR 24 comporte une entrée pour les gaz et au moins une sortie permettant aux gaz (plus particulièrement aux gaz d'échappement recirculés) de pénétrer dans le volume d'entrée de la culasse. La vanne EGR 24 présente au niveau de son extrémité liée à l'élément d'interface 22 une bride de fixation 25. The EGR valve 24 has an inlet for the gases and at least one outlet allowing the gases (more particularly the recirculated exhaust gases) to enter the inlet volume of the cylinder head. The EGR valve 24 has at its end connected to the interface element 22 a fixing flange 25.
Ici, l'élément d'interface 22 est réalisé sous la forme d'une plaque d'interface 22. Un mode de réalisation non illustré propose que l'élément d'interface 22 soit une boite collectrice, de préférence de sortie (encore appelée boite répartitrice), de l'échangeur de chaleur 12. Here, the interface element 22 is in the form of an interface plate 22. A non-illustrated embodiment proposes that the interface element 22 be a collecting box, preferably an outlet (also called distribution box), of the heat exchanger 12.
L'élément d'interface 22 comporte une périphérie et présente au moins une protubérance 32 disposée au niveau de la périphérie. La protubérance 32 est apte à recevoir un moyen de fixation (non représenté), dit premier moyen de fixation, apte à fixer le module 10 d'alimentation en gaz sur la culasse. The interface element 22 has a periphery and has at least one protuberance 32 disposed at the periphery. The protrusion 32 is adapted to receive a fixing means (not shown), said first fixing means, adapted to fix the gas supply module 10 on the cylinder head.
Dans le mode de réalisation illustré ici, la vanne 14 d'alimentation en gaz de l'échangeur de chaleur 12 est assujetti à l'échangeur de chaleur 12 au niveau de la boite diffuseur d'entrée 20, ici, par l'intermédiaire de vis. Pour rappel, dans cet exemple, la liaison entre la vanne 14 d'alimentation en gaz de l'échangeur de chaleur 12 et l'échangeur de chaleur 12 s'effectue par l'intermédiaire du premier élément 28. In the embodiment illustrated here, the gas supply valve 14 of the heat exchanger 12 is subjected to the heat exchanger 12 at the inlet diffuser box 20, here, via screw. As a reminder, in this example, the connection between the gas supply valve 14 of the heat exchanger 12 and the heat exchanger 12 is effected via the first element 28.
L'invention concerne aussi un ensemble d'une culasse d'un moteur de véhicule automobile et d'un module 10 d'alimentation en gaz tel que précédemment décrit, ensemble dans lequel la culasse comporte des orifices aptes à coopérer avec les premiers moyens de fixation en vue de la fixation du module 10 d'alimentation en gaz sur la culasse. The invention also relates to an assembly of a cylinder head of a motor vehicle engine and a gas supply module 10 as previously described, together in which the cylinder head has orifices adapted to cooperate with the first means of fixing for fixing the gas supply module 10 on the cylinder head.
Dans un tel cas, on pourra envisager, par exemple d'usiner ou de tarauder les orifices de la culasse du moteur. L'invention concerne également un moteur thermique de véhicule automobile comportant une chambre de combustion, un bloc moteur et un ensemble d'une culasse et d'un module 10 d'alimentation en gaz d'un moteur tel que précédemment décrit, le moyen de support 16 de la vanne 14 d'alimentation en gaz de l'échangeur de chaleur 12 étant assujetti au bloc moteur. In such a case, it may be possible, for example to machine or tapping the holes of the cylinder head of the engine. The invention also relates to a motor vehicle engine comprising a combustion chamber, an engine block and an assembly of a cylinder head and a gas supply module 10 of an engine as previously described, the means of support 16 of the gas supply valve 14 of the heat exchanger 12 being secured to the engine block.
L'invention ne se limite pas aux modes de réalisation décrits ci avant, seulement à titre d'exemples, mais elle englobe toutes les variantes que pourra envisager l'homme de l'art dans le cadre des revendications ci-après. Les variantes décrites précédemment peuvent être prises séparément ou en combinaison les unes avec les autres. The invention is not limited to the embodiments described above, only as examples, but encompasses all the variants that may be considered by those skilled in the art within the scope of the claims below. The variants described above can be taken separately or in combination with each other.

Claims

Revendications claims
1. Module d'alimentation (10) en gaz d'un moteur comportant un échangeur de chaleur (12) apte à refroidir lesdits gaz en vue de leur admission dans une culasse du moteur et une vanne (14) d'alimentation en gaz apte à orienter lesdits gaz au moins au travers dudit échangeur de chaleur (12) caractérisé en ce que ledit module (10) comporte en outre un moyen de support (16) de ladite vanne (14) comportant une première (16-1) et une deuxième (16-2) extrémités, ladite première extrémité (16-1) étant assujettie à ladite vanne (14) et ladite deuxième extrémité (16-2) étant apte à être fixée audit moteur. 1. A gas supply module (10) for an engine comprising a heat exchanger (12) suitable for cooling said gases for admission into an engine cylinder head and a suitable gas supply valve (14). directing said gases at least through said heat exchanger (12) characterized in that said module (10) further comprises a support means (16) of said valve (14) having a first (16-1) and a second (16-2) ends, said first end (16-1) being secured to said valve (14) and said second end (16-2) being adapted to be fixed to said motor.
2. Module selon la revendication 1 dans lequel ledit échangeur de chaleur (12) comporte au moins un boîtier (18) et une boite collectrice d'entrée (20) pour lesdits gaz dans Γ échangeur de chaleur (12), ladite vanne (14) étant assujetti audit échangeur de chaleur (12) au niveau de ladite boite collectrice d'entrée (20). 2. Module according to claim 1 wherein said heat exchanger (12) comprises at least one housing (18) and an inlet manifold (20) for said gases in Γ heat exchanger (12), said valve (14). ) being secured to said heat exchanger (12) at said inlet manifold (20).
3. Module selon la revendication 2, dans lequel ladite vanne (14) comporte un premier élément (28) et un corps de vanne (26), ledit premier élément (28) étant attaché audit corps de vanne (26) de manière à former une première sortie de la vanne (14) vers ledit échangeur de chaleur (12). The module of claim 2, wherein said valve (14) includes a first member (28) and a valve body (26), said first member (28) being attached to said valve body (26) to form a first outlet of the valve (14) to said heat exchanger (12).
4. Module selon l'une des revendications précédentes comportant en outre un élément d'interface (22) apte à fermer un volume d'entrée de ladite culasse. 4. Module according to one of the preceding claims further comprising an interface element (22) adapted to close an inlet volume of said cylinder head.
5. Module selon la revendication précédente, dans lequel ledit élément d'interface (22) comporte une périphérie et présente au moins une protubérance (32) disposée au niveau de ladite périphérie, ladite protubérance (32) étant apte à recevoir un moyen de fixation, dit premier moyen, apte à fixer ledit module (10) sur ladite culasse. 5. Module according to the preceding claim, wherein said interface element (22) has a periphery and has at least one protrusion (32) disposed at said periphery, said protuberance (32) being adapted to receive a fixing means. , said first means, adapted to fix said module (10) on said cylinder head.
6. Ensemble d'une culasse d'un moteur de véhicule automobile et d'un module (10) selon l'une des revendications précédentes, dans lequel ladite culasse comporte des orifices aptes à coopérer avec un premier moyen de fixation dudit module (10) en vue de la fixation dudit module (10) sur ladite culasse. 6. Assembly of a cylinder head of a motor vehicle engine and a module (10) according to one of the preceding claims, wherein said cylinder head has orifices adapted to cooperate with a first fixing means of said module (10). ) for fixing said module (10) to said cylinder head.
7. Moteur thermique de véhicule automobile comportant une chambre de combustion, un bloc moteur et un ensemble d'une culasse et d'un module d'alimentation (10) en gaz d'un moteur selon la revendication précédente, ledit moyen de support (16) de ladite vanne (14) étant assujetti audit bloc moteur. 7. Motor vehicle engine comprising a combustion chamber, an engine block and a set of a cylinder head and a gas supply module (10) of an engine according to the preceding claim, said support means ( 16) of said valve (14) being secured to said engine block.
PCT/EP2010/068774 2009-12-21 2010-12-02 Gas supply module for a motor vehicle engine, assembly of an engine head and such a module and heat engine comprising such an assembly WO2011076538A1 (en)

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FR0906208 2009-12-21
FR0906208A FR2954413B1 (en) 2009-12-21 2009-12-21 GAS SUPPLY MODULE OF A MOTOR VEHICLE ENGINE, ASSEMBLY OF A CYLINDER HEAD OF AN ENGINE AND SUCH A MODULE AND THERMAL MOTOR COMPRISING SUCH AN ASSEMBLY.

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FR2981410B1 (en) * 2011-10-12 2013-10-18 Valeo Systemes De Controle Moteur GAS SUPPLY MODULE OF A MOTOR VEHICLE ENGINE

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EP0372392A2 (en) * 1988-12-02 1990-06-13 Hitachi, Ltd. Intake manifold of internal combustion engine
JPH1089160A (en) * 1996-09-18 1998-04-07 Nissan Motor Co Ltd Exhaust reflux device for internal combustion engine
EP1375896A2 (en) * 2002-06-25 2004-01-02 Pierburg GmbH Air intake system
FR2856746A1 (en) * 2003-06-25 2004-12-31 Valeo Thermique Moteur Sa Cooling module for motor vehicle, has charge air cooler and re-circulated exhaust gas cooler, where outlet case of gas cooler has outlet passage which opens directly into outlet case of air cooler
EP1870591A2 (en) * 2003-11-19 2007-12-26 Mahle Filtersysteme GmbH Intake device for an internal combustion engine
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WO2009141711A1 (en) * 2008-05-20 2009-11-26 Valeo Systemes De Controle Moteur Gas intake device

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Publication number Priority date Publication date Assignee Title
FR2409386A1 (en) * 1977-11-22 1979-06-15 Yamaha Motor Co Ltd PROCESS FOR ADJUSTING THE INTAKE GASES INTRODUCED INTO AN INTERNAL COMBUSTION ENGINE
EP0372392A2 (en) * 1988-12-02 1990-06-13 Hitachi, Ltd. Intake manifold of internal combustion engine
JPH1089160A (en) * 1996-09-18 1998-04-07 Nissan Motor Co Ltd Exhaust reflux device for internal combustion engine
EP1375896A2 (en) * 2002-06-25 2004-01-02 Pierburg GmbH Air intake system
FR2856746A1 (en) * 2003-06-25 2004-12-31 Valeo Thermique Moteur Sa Cooling module for motor vehicle, has charge air cooler and re-circulated exhaust gas cooler, where outlet case of gas cooler has outlet passage which opens directly into outlet case of air cooler
EP1870591A2 (en) * 2003-11-19 2007-12-26 Mahle Filtersysteme GmbH Intake device for an internal combustion engine
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WO2009141711A1 (en) * 2008-05-20 2009-11-26 Valeo Systemes De Controle Moteur Gas intake device

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FR2954413A1 (en) 2011-06-24

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