EP1375857A1 - Cooling device for an internal combustion engine - Google Patents

Cooling device for an internal combustion engine Download PDF

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Publication number
EP1375857A1
EP1375857A1 EP03291583A EP03291583A EP1375857A1 EP 1375857 A1 EP1375857 A1 EP 1375857A1 EP 03291583 A EP03291583 A EP 03291583A EP 03291583 A EP03291583 A EP 03291583A EP 1375857 A1 EP1375857 A1 EP 1375857A1
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EP
European Patent Office
Prior art keywords
cooling
enclosure
cylinder
cooling device
flow
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.)
Withdrawn
Application number
EP03291583A
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German (de)
French (fr)
Inventor
Herbert Grazzini
Franck Simon
Anne Tugaye
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
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Filing date
Publication date
Application filed by Renault SAS filed Critical Renault SAS
Publication of EP1375857A1 publication Critical patent/EP1375857A1/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • 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
    • F01P7/00—Controlling of coolant flow
    • F01P7/14—Controlling of coolant flow the coolant being liquid
    • F01P7/16—Controlling of coolant flow the coolant being liquid by thermostatic control
    • F01P7/165—Controlling of coolant flow the coolant being liquid by thermostatic control characterised by systems with two or more loops
    • 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
    • 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
    • F01P2003/024—Cooling cylinder heads
    • 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
    • F01P2003/027—Cooling cylinders and cylinder heads in parallel
    • 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
    • F01P2003/028—Cooling cylinders and cylinder heads in series
    • 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
    • F01P2060/00—Cooling circuits using auxiliaries
    • F01P2060/08—Cabin heater
    • 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
    • F01P7/00—Controlling of coolant flow
    • F01P7/14—Controlling of coolant flow the coolant being liquid
    • F01P7/16—Controlling of coolant flow the coolant being liquid by thermostatic control
    • F01P7/167—Controlling of coolant flow the coolant being liquid by thermostatic control by adjusting the pre-set temperature according to engine parameters, e.g. engine load, engine speed

Definitions

  • the present invention relates to a cooling device for combustion engine internal, the device comprising a plurality engine cylinder head cooling chambers, these speakers being separated from each other and suitable for being crossed by a cooling.
  • the invention finds in particular a application in the field of diesel engines and positive ignition engines of motor vehicles.
  • the device 1 comprises an enclosure of cooling of the cylinder block of engine 2, communicating with a cooling enclosure of the engine 4 cylinder head located substantially above from it, through orifices located in the cylinder head gasket (not shown).
  • the cooling device 1 comprises a pump 6, a main air / liquid heat exchanger 8, a Annex 10 heat exchanger for heating the passenger compartment of the vehicle, as well as a piloted valve or a wax thermostat 12 and other exchangers (oil, air, etc).
  • cooling is able to penetrate inside the cooling chamber of the cylinder block 2 thanks at pump 6, to diffuse towards the enclosure of cooling of the cylinder head 4, then being directed to the various heat exchangers 8 and 10 of the device 1, passing through the valve or the thermostat 12.
  • Fluid flow management cooling through enclosures 2 and 4 is generally provided by the valve or the thermostat 12, indifferently located at the exit or entry of the main heat exchanger 8. The latter is then likely to authorize a circulation of the coolant, when the temperature of this fluid, usually water, exceeds a threshold predetermined.
  • the design is such that the coolant passing through the cylinder head engine is brought as close as possible possible from the fire side, to ensure the holding thermomechanical motor equipped with such a device.
  • the fluid flow of cooling is determined by the required flow at the hottest and most constrained points thermomechanically, at the operating point (s) engine dimensions.
  • the object of the invention is therefore to propose a cooling device for combustion engine internal, the device comprising a plurality separate cylinder cooling chambers of the engine, and at least partially remedying the disadvantages mentioned above relating to achievements of the prior art.
  • the purpose of this invention is to present a device for cooling minimizing as widely as possible problems related to the super-cooling of the cylinder head, such as unnecessary energy consumption of pumping and slowing the rise in temperature of the areas near the exhaust.
  • the invention relates to a cooling device for combustion engine internal, the device comprising a plurality engine cylinder head cooling chambers, these speakers being separated from each other and suitable for being crossed by a cooling.
  • the device further comprises at least first and second flow control means respectively coupled to at least a first cooling enclosure of the breech and at least a second enclosure of cylinder head cooling, first and second flow regulation means being able to regulate the coolant flow respectively at through each first cooling enclosure and through each second cooling enclosure.
  • the cylinder head of the engine equipped with the device cooling system according to the invention is cooled to using at least two enclosures, the flow of coolant through these two enclosures can be regulated, for each of them, so independent or very weakly linked. So with a such arrangement, the device has at least two cooling chambers each likely to be crossed by a different flow, any of the latter being able to undergo a variation without influence or influence only very slightly the value of the other flow. In this way, the device proposed naturally reduces considerably the super-cooling of some breech zones, by modulating the intensity of the cooling depending on the area considered.
  • the cooling device according to the invention also makes it possible to obtain a very good compromise between engine fuel consumption, polluting emissions, engine power and protection of the components of the engine equipped with device.
  • the device For each cooling enclosure of the cylinder head, the device comprises means for enclosure-specific flow control, suitable for regulate the flow of coolant through the enclosure.
  • the device then presents a number maximum number of speakers with adjustable flow, specific to each of them. Of course, such specificity further promotes disappearance over-cooling zones of the cylinder head engine.
  • the associated flow control means are indifferently located at the entrance or at the exit of the enclosure, and are constituted by controlled valves or wax thermostats.
  • the associated flow control means function either progressively or binary way.
  • regulating means associated flow rates are controlled according to a map of the regime / load type, or according to a measure of the coolant temperature at outlet the enclosure.
  • At least one of the cylinder head cooling chambers extends substantially over the entire length of the cylinder block of the engine.
  • each enclosure of cylinder head cooling is connected to a cooling fluid supply duct, each fluid supply line from cooling being connected to the same pump of the device.
  • each enclosure of cylinder head cooling is connected to a cooling fluid discharge pipe, each fluid discharge line from cooling being connected on the one hand to a main heat exchanger of the device, and on the other hand to an annex heat exchanger device.
  • the cooling device also includes a cylinder block cooling enclosure motor, the enclosure being connected on the one hand to the device pump, and secondly to a conduit coolant discharge from a cylinder head cooling enclosure, the flow of coolant through the enclosure of cooling of the cylinder block being able to be regulated by the flow control means coupled to the cylinder head cooling chamber.
  • the device 100 finds a very specific application for diesel engines and spark ignition engines but that it could also apply to any other type of motor to internal combustion, without departing from the the invention.
  • the device 100 includes a cooling enclosure of the cylinder block 102, a first enclosure of cooling of cylinder head 104a, one second cylinder cooling chamber 104b, one pump 106, a main heat exchanger air / liquid 108 of the conventional radiator type, a annex 110 heat exchanger for heating the vehicle interior, first means of flow control 112a, as well as second means flow control 112b, the first and second means 112a and 112b being for example of the valve type piloted or wax thermostat.
  • the first cylinder cooling enclosure 104a and the second cooling enclosure of the cylinder head 104b are separated and arranged one above on the other, extending in parallel and longitudinally over the entire length of the cylinder block of the motor.
  • the device 100 according to the invention is not limited to two speakers of cooling of the cylinder head, and could of course have more, any shape, and optimally distributed to cool the various breech zones.
  • the first cooling enclosure of the cylinder head 104a has an inlet 114 and a output 116.
  • Input 114 is connected to a conduit coolant supply 118, itself connected to the pump 106 of the device 100.
  • output 116 is connected to a conduit coolant outlet 120, itself connected to the first flow regulation means 112a.
  • the first means of regulating flow 112a are then on the one hand connected to the heat exchanger main 108 using conduit 122, and other part to the annex 110 heat exchanger using a conduit 124.
  • the second enclosure of cylinder head cooling 104b has an inlet 126 and an output 128.
  • Input 126 is connected to a coolant supply duct 130, itself connected to the pump 106 of the device 100.
  • the fluid supply conduits cooling 118 and 130 have a part common 132 connecting them to pump 106 but that they could of course be completely independent, or connected to two separate pumps.
  • output 128 is connected to an exhaust duct of cooling fluid 134, itself connected to the second means of regulating the flow 112b.
  • the second means of flow control 112b are then on the one hand connected to the main heat exchanger 108 to using a conduit 136, and secondly to the exchanger additional heat 110 using a duct 138.
  • the means of flow control 112a and 112b are placed at the output of these speakers, at the level of the conduits respective evacuation 120 and 134.
  • the means flow control 112a and 112b are placed at the inlet of these enclosures, at the supply ducts respectively 118 and 130.
  • the first and second flow control means 112a and 112b by acting on the first and second flow control means 112a and 112b, it is respectively possible to regulate, independently or loosely linked, the fluid flow of cooling through the first enclosure 104a and the coolant flow through the second enclosure 104b.
  • the regulation of one of the two little or no influence nonexistent on the other of the two flows.
  • each of the two enclosures of cooling 104a and 104b is coupled to means separate flow control 112a and 112b, allowing to establish two different bit rates through these speakers 104a and 104b.
  • the device 100 could of course be achieved in such a way that several cooling chambers of the cylinder head are connected to the same first or second flow control means 112a and 112b, in particular when the breech areas associated with these speakers need to be cooled with a identical or similar intensity.
  • the device 100 is not limited to the first and second means of regulating flow 112a and 112b, but can include as many flow regulation means than cooling of the cylinder head, without leaving the frame of the invention.
  • the flow control means 112a and 112b function either progressively or binary way, the choice of the type of opening depends the cost and the ability of the engine to withstand rapid variations in flow and temperature.
  • the opening of resources regulation can be a function of a mapping regime / load established experimentally and different for each of the flow regulation means, or function of a measurement of the fluid temperature of cooling at the outlet of the enclosure concerned, when this enclosure is still debitant.
  • piloting can also be done according to a measurement of the temperature of a metal part of the cylinder head or water inside the engine, the measured temperature being considered representative of the thermal state of the area considered. Note at this title only when the liquid temperature of cooling pilot opening the means of flow control, a simple wax thermostat can serve as a valve.
  • piloting flow control means can be implemented works according to the speed, the load, and one or more of several fluid temperature measurements of cooling.
  • the cooling chamber of the cylinder block 102 of the cooling device 100 is located below of the first cooling enclosure of the cylinder head 104a, parallel and on the same length.
  • the cooling enclosure of the cylinder block 102 has an input 140 and an output 142.
  • Input 140 is connected to a conduit coolant supply 144, itself connected to the pump 106 of the device 100.
  • the fluid supply line of cooling 144 is connected to the supply duct common 132 of the first and second enclosures of cooling of the cylinder head 104a, 104b, this conduit common 132 being connected to the device pump 106 100.
  • the three supply lines 118,130,144 of the three cooling chambers 102, 104a, 104b are all connected before being connected to the pump 106, but could of course be completely independent, or connected to two or three separate pumps.
  • output 142 is connected to a cooling fluid discharge duct 146, itself connected to the exhaust duct 120 of the first cylinder cooling enclosure 104a. So the coolant flow at through the cooling enclosure of the cylinder block 102 is therefore regulated by the first means of flow control 112a, in the same way as the flow of coolant through the first cylinder cooling chamber 104a.
  • Another possibility could be to connect the exhaust pipe of coolant 146 to any of coolant evacuation pipes from cylinder cooling chambers, provided that the respective flow rates through these two enclosures are compatible.
  • the cooling 100 can be designed so that the cooling enclosure of the cylinder block 102 has its own flow regulation means, these must then be connected to the exchange air / liquid main heat 108, and at the exchanger heat pump annex 110 for interior heating of the vehicle.
  • the main air / liquid heat exchanger 108 and the annex 110 heat exchanger are connected to the pump 106, respectively using pipes 148 and 150.
  • cooling device 100 which has just been described, only by way of nonlimiting example.

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

Abstract

The cooling system (100) has multiple containers (104a,104b) separated one from the other and traversed by the cooling fluid. Two coolant flow regulators (112a,112b) connect the engine (102) to the first container and the first container to the second container, respectively. The flow regulators determine the flow of coolant through each of the containers.

Description

DOMAINE TECHNIQUETECHNICAL AREA

La présente invention se rapporte à un dispositif de refroidissement pour moteur à combustion interne, le dispositif comprenant une pluralité d'enceintes de refroidissement de la culasse du moteur, ces enceintes étant séparées les unes des autres et aptes à être traversées par un fluide de refroidissement.The present invention relates to a cooling device for combustion engine internal, the device comprising a plurality engine cylinder head cooling chambers, these speakers being separated from each other and suitable for being crossed by a cooling.

L'invention trouve notamment une application dans le domaine des moteurs Diesel et des moteurs à allumage commandé de véhicules automobiles.The invention finds in particular a application in the field of diesel engines and positive ignition engines of motor vehicles.

ETAT DE LA TECHNIQUE ANTERIEURESTATE OF THE PRIOR ART

Dans le domaine des dispositifs de refroidissement pour moteur à combustion interne de véhicule automobile, on connaít des réalisations classiques telles que celle représentée sur la figure 1.In the area of cooling for internal combustion engine motor vehicle, we know some achievements classics like the one shown in the figure 1.

Sur cette figure, le dispositif de refroidissement est représenté de manière générale par la référence numérique 1.In this figure, the cooling is generally represented by the numerical reference 1.

Le dispositif 1 comprend une enceinte de refroidissement du bloc-cylindres du moteur 2, communiquant avec une enceinte de refroidissement de la culasse du moteur 4 située sensiblement au-dessus d'elle, par l'intermédiaire d'orifices situés dans le joint de culasse (non-représentés). En outre, le dispositif de refroidissement 1 comprend une pompe 6, un échangeur de chaleur principal air/liquide 8, un échangeur de chaleur annexe 10 pour le chauffage de l'habitacle du véhicule, ainsi qu'une vanne pilotée ou un thermostat à cire 12 et d'autres échangeurs (huile, air, etc) .The device 1 comprises an enclosure of cooling of the cylinder block of engine 2, communicating with a cooling enclosure of the engine 4 cylinder head located substantially above from it, through orifices located in the cylinder head gasket (not shown). In addition, the cooling device 1 comprises a pump 6, a main air / liquid heat exchanger 8, a Annex 10 heat exchanger for heating the passenger compartment of the vehicle, as well as a piloted valve or a wax thermostat 12 and other exchangers (oil, air, etc).

En fonctionnement, du liquide de refroidissement est apte à pénétrer à l'intérieur de l'enceinte de refroidissement du bloc-cylindres 2 grâce à la pompe 6, de diffuser vers l'enceinte de refroidissement de la culasse 4, puis d'être dirigé vers les divers échangeurs de chaleur 8 et 10 du dispositif 1, en transitant par la vanne ou le thermostat 12.In operation, cooling is able to penetrate inside the cooling chamber of the cylinder block 2 thanks at pump 6, to diffuse towards the enclosure of cooling of the cylinder head 4, then being directed to the various heat exchangers 8 and 10 of the device 1, passing through the valve or the thermostat 12.

La gestion du débit du fluide de refroidissement à travers les enceintes 2 et 4 est généralement assurée par la vanne ou le thermostat 12, indifféremment situé en sortie ou en entrée de l'échangeur de chaleur principal 8. Ce dernier est alors susceptible d'autoriser une circulation du liquide de refroidissement, lorsque la température de ce fluide, généralement de l'eau, dépasse un seuil prédéterminé.Fluid flow management cooling through enclosures 2 and 4 is generally provided by the valve or the thermostat 12, indifferently located at the exit or entry of the main heat exchanger 8. The latter is then likely to authorize a circulation of the coolant, when the temperature of this fluid, usually water, exceeds a threshold predetermined.

Notons que dans ces dispositifs de refroidissement classiques, la conception est telle que le fluide de refroidissement traversant la culasse du moteur est amené de la manière la plus rapprochée possible de la face feu, pour assurer la tenue thermomécanique du moteur équipé d'un tel dispositif.Note that in these devices of conventional cooling, the design is such that the coolant passing through the cylinder head engine is brought as close as possible possible from the fire side, to ensure the holding thermomechanical motor equipped with such a device.

Or lors de la mise en oeuvre de ce type de dispositif de refroidissement, le débit de fluide de refroidissement est déterminé par le débit nécessaire aux points les plus chauds et les plus contraints thermomécaniquement, au(x) point( s) de fonctionnement dimmensionnants du moteur.However during the implementation of this type of cooling device, the fluid flow of cooling is determined by the required flow at the hottest and most constrained points thermomechanically, at the operating point (s) engine dimensions.

La configuration spécifique de ce dispositif de refroidissement classique de l'art antérieur engendre alors un inconvénient majeur, consistant en l'apparition de sur-refroidissements de certaines zones de la culasse du moteur.The specific configuration of this classic art cooling device anterior then generates a major drawback, consisting in the appearance of super-cooling of certain areas of the engine cylinder head.

En effet, toutes les zones de la culasse ne nécessitent pas d'être refroidies avec la même intensité, ce qui est pourtant le cas rencontré avec ce type de dispositif à enceinte de refroidissement culasse unique. Ainsi, les sur-refroidissements opérés peuvent aboutir à des conséquences néfastes sur un ensemble de prestations diverses, telles que la consommation inutile d'énergie de pompage et le ralentissement de la montée en température des zones près de l'échappement, ce dernier inconvénient cité étant nettement défavorable à un amorçage rapide du catalyseur de dépollution.Indeed, all the zones of the breech do not not need to be cooled with the same intensity, which is however the case encountered with this type of cooling enclosure device single cylinder head. Thus, the super-cooling operations carried out can lead to harmful consequences on a various services, such as unnecessary consumption of pumping energy and the slowing of the temperature rise in the zones near the exhaust, this last drawback cited being clearly unfavorable to a rapid priming of the depollution catalyst.

De l'art antérieur, on connaít également d'autres réalisations dans lesquelles le dispositif de refroidissement dispose de plusieurs enceintes séparées de refroidissement de la culasse du moteur.From the prior art, we also know other achievements in which the device cooling has several separate speakers engine cylinder head.

Néanmoins, ces multiples enceintes sont habituellement conçues de manière à communiquer les unes avec les autres à l'extérieur de la culasse, de telle façon que le système de régulation du type vanne ou thermostat piloté soit unique. Par conséquent, en raison du caractère unitaire du système de régulation, la solution proposée ne résout en aucun cas les inconvénients cités ci-dessus, afférents aux sur-refroidissements de certaines zones de la culasse.However, these multiple speakers are usually designed to communicate with each other outside the cylinder head, such that the valve type control system or thermostat controlled is unique. Therefore, in reason for the unitary nature of the regulatory system, the proposed solution in no way resolves disadvantages mentioned above, relating to super-cooling certain areas of the breech.

EXPOSÉ DE L'INVENTIONSTATEMENT OF THE INVENTION

L' invention a donc pour but de proposer un dispositif de refroidissement pour moteur à combustion interne, le dispositif comprenant une pluralité d'enceintes séparées de refroidissement de la culasse du moteur, et remédiant au moins partiellement aux inconvénients mentionnés ci-dessus relatifs aux réalisations de l'art antérieur.The object of the invention is therefore to propose a cooling device for combustion engine internal, the device comprising a plurality separate cylinder cooling chambers of the engine, and at least partially remedying the disadvantages mentioned above relating to achievements of the prior art.

Plus précisément, le but de la présente invention est de présenter un dispositif de refroidissement minimisant le plus largement possible les problèmes liés aux sur-refroidissements de la culasse, tels que la consommation inutile d'énergie de pompage et le ralentissement de la montée en température des zones près de l'échappement.Specifically, the purpose of this invention is to present a device for cooling minimizing as widely as possible problems related to the super-cooling of the cylinder head, such as unnecessary energy consumption of pumping and slowing the rise in temperature of the areas near the exhaust.

Pour ce faire, l'invention a pour objet un dispositif de refroidissement pour moteur à combustion interne, le dispositif comprenant une pluralité d'enceintes de refroidissement de la culasse du moteur, ces enceintes étant séparées les unes des autres et aptes à être traversées par un fluide de refroidissement. Selon l'invention, le dispositif comporte en outre au moins des premiers et des seconds moyens de régulation de débit couplés respectivement à au moins une première enceinte de refroidissement de la culasse et au moins une seconde enceinte de refroidissement de la culasse, les premiers et seconds moyens de régulation de débit étant aptes à réguler le débit du fluide de refroidissement respectivement à travers chaque première enceinte de refroidissement et à travers chaque seconde enceinte de refroidissement.To do this, the invention relates to a cooling device for combustion engine internal, the device comprising a plurality engine cylinder head cooling chambers, these speakers being separated from each other and suitable for being crossed by a cooling. According to the invention, the device further comprises at least first and second flow control means respectively coupled to at least a first cooling enclosure of the breech and at least a second enclosure of cylinder head cooling, first and second flow regulation means being able to regulate the coolant flow respectively at through each first cooling enclosure and through each second cooling enclosure.

La culasse du moteur équipé du dispositif de refroidissement selon l'invention est refroidie à l'aide d'au moins deux enceintes, dont le débit de fluide de refroidissement à travers ces deux enceintes peut être régulé, pour chacune d'entre elles, de façon indépendante ou très faiblement liée. Ainsi, avec un tel agencement, le dispositif présente au moins deux enceintes de refroidissement chacune susceptible d'être traversée par un débit différent, l'un quelconque de ces derniers étant apte à subir une variation sans influer ou n'influant que très faiblement sur la valeur de l'autre débit. De cette manière, le dispositif proposé permet naturellement de diminuer considérablement les sur-refroidissements de certaines zones de la culasse, en modulant l'intensité du refroidissement suivant la zone considérée.The cylinder head of the engine equipped with the device cooling system according to the invention is cooled to using at least two enclosures, the flow of coolant through these two enclosures can be regulated, for each of them, so independent or very weakly linked. So with a such arrangement, the device has at least two cooling chambers each likely to be crossed by a different flow, any of the latter being able to undergo a variation without influence or influence only very slightly the value of the other flow. In this way, the device proposed naturally reduces considerably the super-cooling of some breech zones, by modulating the intensity of the cooling depending on the area considered.

Par conséquent, en disposant les enceintes de façon optimale en fonction de la nature des diverses zones à refroidir de la culasse, il est possible de réduire fortement les problèmes liés à la consommation inutile d'énergie de pompage et au ralentissement de la montée en température des zones près de l'échappement.Therefore, by arranging the speakers optimally depending on the nature of the various areas to cool the cylinder head it is possible to greatly reduce consumption-related problems unnecessary pumping energy and slowing down the temperature rise in areas near the exhaust.

Le dispositif de refroidissement selon l'invention permet également d'obtenir un très bon compromis entre la consommation de carburant du moteur, les émissions polluantes, la puissance du moteur et la protection des éléments constituant le moteur équipé du dispositif.The cooling device according to the invention also makes it possible to obtain a very good compromise between engine fuel consumption, polluting emissions, engine power and protection of the components of the engine equipped with device.

Pour chaque enceinte de refroidissement de la culasse, le dispositif comporte des moyens de régulation de débit propres à l'enceinte, aptes à réguler le débit du fluide de refroidissement à travers l'enceinte. Le dispositif présente alors un nombre maximum d' enceintes disposant d' un débit réglable, propre à chacune d'entre elles. Bien entendu, une telle spécificité favorise encore davantage la disparition des zones de sur-refroidissement de la culasse du moteur.For each cooling enclosure of the cylinder head, the device comprises means for enclosure-specific flow control, suitable for regulate the flow of coolant through the enclosure. The device then presents a number maximum number of speakers with adjustable flow, specific to each of them. Of course, such specificity further promotes disappearance over-cooling zones of the cylinder head engine.

Selon un autre mode de réalisation, pour chaque enceinte de refroidissement de la culasse, les moyens de régulation de débit associés sont indifféremment situés à l'entrée ou à la sortie de l'enceinte, et sont constitués par des vannes pilotées ou des thermostats à cire. De plus, pour chaque enceinte de refroidissement de la culasse, on peut prévoir que les moyens de régulation de débit associés fonctionnent indifféremment de façon progressive ou de façon binaire.According to another embodiment, for each cylinder cooling chamber, the associated flow control means are indifferently located at the entrance or at the exit of the enclosure, and are constituted by controlled valves or wax thermostats. In addition, for each cylinder head cooling enclosure we can provide that the associated flow control means function either progressively or binary way.

Par ailleurs, pour chaque enceinte de refroidissement de la culasse, les moyens de régulation de débit associés sont pilotés selon une cartographie du type régime/charge, ou selon une mesure de la température du fluide de refroidissement à la sortie de l'enceinte. In addition, for each enclosure of cylinder head cooling, regulating means associated flow rates are controlled according to a map of the regime / load type, or according to a measure of the coolant temperature at outlet the enclosure.

De façon préférée, au moins une des enceintes de refroidissement de la culasse s'étend sensiblement sur toute la longueur du bloc-cylindres du moteur.Preferably, at least one of the cylinder head cooling chambers extends substantially over the entire length of the cylinder block of the engine.

En outre, chaque enceinte de refroidissement de la culasse est connectée à un conduit d'alimentation de fluide de refroidissement, chaque conduit d'alimentation de fluide de refroidissement étant connecté à une même pompe du dispositif. De la même manière, chaque enceinte de refroidissement de la culasse est connectée à un conduit d'évacuation de fluide de refroidissement, chaque conduit d'évacuation de fluide de refroidissement étant connecté d' une part à un échangeur de chaleur principal du dispositif, et d'autre part à un échangeur de chaleur annexe du dispositif.In addition, each enclosure of cylinder head cooling is connected to a cooling fluid supply duct, each fluid supply line from cooling being connected to the same pump of the device. Similarly, each enclosure of cylinder head cooling is connected to a cooling fluid discharge pipe, each fluid discharge line from cooling being connected on the one hand to a main heat exchanger of the device, and on the other hand to an annex heat exchanger device.

Selon un autre mode de réalisation, le dispositif de refroidissement comprend également une enceinte de refroidissement du bloc-cylindres du moteur, l' enceinte étant connectée d' une part à la pompe du dispositif, et d'autre part à un conduit d'évacuation de fluide de refroidissement d' une enceinte de refroidissement de la culasse, le débit de fluide de refroidissement à travers l'enceinte de refroidissement du bloc-cylindres étant apte à être régulé par les moyens de régulation de débit couplés à l'enceinte de refroidissement de la culasse.According to another embodiment, the cooling device also includes a cylinder block cooling enclosure motor, the enclosure being connected on the one hand to the device pump, and secondly to a conduit coolant discharge from a cylinder head cooling enclosure, the flow of coolant through the enclosure of cooling of the cylinder block being able to be regulated by the flow control means coupled to the cylinder head cooling chamber.

D'autres avantages et caractéristiques de l'invention apparaítront dans la description détaillée non limitative ci-dessous. Other advantages and characteristics of the invention will appear in the detailed description nonlimiting below.

BRÈVE DESCRIPTION DES DESSINSBRIEF DESCRIPTION OF THE DRAWINGS

Cette description sera faite au regard des dessins annexés parmi lesquels ;

  • la figure 1, déjà décrite, représente une vue schématique en perspective d'un dispositif de refroidissement classique de l'art antérieur, pour un moteur à combustion interne ;
  • la figure 2 représente une vue schématique en perspective d' un dispositif de refroidissement pour moteur à combustion interne, selon un mode de réalisation préféré de la présente invention.
This description will be made with reference to the accompanying drawings, among which;
  • Figure 1, already described, shows a schematic perspective view of a conventional cooling device of the prior art, for an internal combustion engine;
  • FIG. 2 represents a schematic perspective view of a cooling device for an internal combustion engine, according to a preferred embodiment of the present invention.

EXPOSÉ DÉTAILLÉ D'UN MODE DE RÉALISATION PRÉFÉRÉDETAILED DESCRIPTION OF A PREFERRED EMBODIMENT

En référence à la figure 2, on voit un dispositif de refroidissement 100 pour moteur à combustion interne (non représenté) de véhicule automobile.Referring to Figure 2, we see a cooling device 100 for vehicle internal combustion (not shown) automobile.

Notons que le dispositif 100 trouve une application toute particulière pour les moteurs Diesel et les moteurs à allumage commandé, mais qu'il pourrait également s'appliquer à tout autre type de moteur à combustion interne, sans sortir du cadre de l'invention.Note that the device 100 finds a very specific application for diesel engines and spark ignition engines but that it could also apply to any other type of motor to internal combustion, without departing from the the invention.

Toujours en référence à la figure 2, le dispositif 100 comporte une enceinte de refroidissement du bloc-cylindres 102, une première enceinte de refroidissement de la culasse 104a, une seconde enceinte de refroidissement de la culasse 104b, une pompe 106, un échangeur de chaleur principal air/liquide 108 du type radiateur classique, un échangeur de chaleur annexe 110 pour le chauffage de l' habitacle du véhicule, des premiers moyens de régulation de débit 112a, ainsi que des seconds moyens de régulation de débit 112b, les premiers et seconds moyens 112a et 112b étant par exemple du type vanne pilotée ou thermostat à cire.Still with reference to FIG. 2, the device 100 includes a cooling enclosure of the cylinder block 102, a first enclosure of cooling of cylinder head 104a, one second cylinder cooling chamber 104b, one pump 106, a main heat exchanger air / liquid 108 of the conventional radiator type, a annex 110 heat exchanger for heating the vehicle interior, first means of flow control 112a, as well as second means flow control 112b, the first and second means 112a and 112b being for example of the valve type piloted or wax thermostat.

Comme on peut l'apercevoir sur la figure, la première enceinte de refroidissement de la culasse 104a et la seconde enceinte de refroidissement de la culasse 104b sont séparées et disposées l'une au-dessus de l'autre, en s'étendant parallèlement et longitudinalement sur toute la longueur du bloc-cylindres du moteur. Naturellement, le dispositif 100 selon l'invention n' est pas limité à deux enceintes de refroidissement de la culasse, et pourrait bien entendu en comporter davantage, de formes quelconques, et réparties de façon optimale pour refroidir les diverses zones de la culasse.As can be seen in the figure, the first cylinder cooling enclosure 104a and the second cooling enclosure of the cylinder head 104b are separated and arranged one above on the other, extending in parallel and longitudinally over the entire length of the cylinder block of the motor. Naturally, the device 100 according to the invention is not limited to two speakers of cooling of the cylinder head, and could of course have more, any shape, and optimally distributed to cool the various breech zones.

La première enceinte de refroidissement de la culasse 104a dispose d' une entrée 114 et d' une sortie 116. L'entrée 114 est connectée à un conduit d'alimentation de fluide de refroidissement 118, lui-même connecté à la pompe 106 du dispositif 100. De plus, la sortie 116 est connectée à un conduit d'évacuation de fluide de refroidissement 120, lui-même connecté aux premiers moyens de régulation du débit 112a. Comme cela est visible sur la figure 2, les premiers moyens de régulation de débit 112a sont ensuite d'une part raccordés à l'échangeur de chaleur principal 108 à l'aide d'un conduit 122, et d'autre part à l'échangeur de chaleur annexe 110 à l'aide d'un conduit 124.The first cooling enclosure of the cylinder head 104a has an inlet 114 and a output 116. Input 114 is connected to a conduit coolant supply 118, itself connected to the pump 106 of the device 100. From plus, output 116 is connected to a conduit coolant outlet 120, itself connected to the first flow regulation means 112a. As can be seen in Figure 2, the first means of regulating flow 112a are then on the one hand connected to the heat exchanger main 108 using conduit 122, and other part to the annex 110 heat exchanger using a conduit 124.

De la même manière, la seconde enceinte de refroidissement de la culasse 104b dispose d'une entrée 126 et d'une sortie 128. L'entrée 126 est connectée à un conduit d'alimentation de fluide de refroidissement 130, lui-même connecté à la pompe 106 du dispositif 100. Notons que les conduits d'alimentation de fluide de refroidissement 118 et 130 disposent d'une partie commune 132 les connectant à la pompe 106, mais qu'ils pourraient bien entendu être totalement indépendants, ou encore raccordés à deux pompes distinctes. De plus, la sortie 128 est connectée à un conduit d'évacuation de fluide de refroidissement 134, lui-même connecté aux seconds moyens de régulation du débit 112b. Comme cela est visible sur la figure 2, les seconds moyens de régulation de débit 112b sont ensuite d'une part raccordés à l'échangeur de chaleur principal 108 à l'aide d'un conduit 136, et d'autre part à l'échangeur de chaleur annexe 110 à l'aide d'un conduit 138.Similarly, the second enclosure of cylinder head cooling 104b has an inlet 126 and an output 128. Input 126 is connected to a coolant supply duct 130, itself connected to the pump 106 of the device 100. Note that the fluid supply conduits cooling 118 and 130 have a part common 132 connecting them to pump 106 but that they could of course be completely independent, or connected to two separate pumps. Moreover, output 128 is connected to an exhaust duct of cooling fluid 134, itself connected to the second means of regulating the flow 112b. Like this is visible in Figure 2, the second means of flow control 112b are then on the one hand connected to the main heat exchanger 108 to using a conduit 136, and secondly to the exchanger additional heat 110 using a duct 138.

Pour la première et la seconde enceinte de refroidissement de la culasse 104a,104b, les moyens de régulation de débit 112a et 112b sont placés à la sortie de ces enceintes, au niveau des conduits d'évacuation respectifs 120 et 134. A titre d'exemple, il serait également envisageable de placer les moyens de régulation de débit 112a et 112b à l'entrée de ces enceintes, au niveau des conduits d'alimentation respectifs 118 et 130.For the first and the second enclosure of cooling of the cylinder head 104a, 104b, the means of flow control 112a and 112b are placed at the output of these speakers, at the level of the conduits respective evacuation 120 and 134. For example, it would also be possible to place the means flow control 112a and 112b at the inlet of these enclosures, at the supply ducts respectively 118 and 130.

Ainsi, en agissant sur les premiers et seconds moyens de régulation de débit 112a et 112b, il est respectivement possible de réguler, indépendamment ou de façon faiblement liée, le débit de fluide de refroidissement à travers la première enceinte 104a et le débit de fluide de refroidissement à travers la seconde enceinte 104b. En d'autres termes, dans le mode de réalisation présenté, la régulation de l'un des deux débits n'influe pas ou seulement de façon quasiment inexistante sur l'autre des deux débits.So, by acting on the first and second flow control means 112a and 112b, it is respectively possible to regulate, independently or loosely linked, the fluid flow of cooling through the first enclosure 104a and the coolant flow through the second enclosure 104b. In other words, in the mode of realization presented, the regulation of one of the two little or no influence nonexistent on the other of the two flows.

Il est à noter que dans ce mode de réalisation, chacune des deux enceintes de refroidissement 104a et 104b est couplée à des moyens de régulation de débit 112a et 112b distincts, permettant d'établir deux débits différents à travers ces enceintes 104a et 104b. Cependant, le dispositif 100 pourrait bien entendu être réalisé de telle sorte que plusieurs enceintes de refroidissement de la culasse soient reliées aux mêmes premiers ou seconds moyens de régulation de débit 112a et 112b, notamment lorsque les zones de la culasse associées à ces enceintes nécessitent d'être refroidies avec une intensité identique ou similaire.It should be noted that in this mode of realization, each of the two enclosures of cooling 104a and 104b is coupled to means separate flow control 112a and 112b, allowing to establish two different bit rates through these speakers 104a and 104b. However, the device 100 could of course be achieved in such a way that several cooling chambers of the cylinder head are connected to the same first or second flow control means 112a and 112b, in particular when the breech areas associated with these speakers need to be cooled with a identical or similar intensity.

Par ailleurs, le dispositif 100 n' est pas limité aux premiers et seconds moyens de régulation de débit 112a et 112b, mais peut comporter autant de moyens de régulation de débit que d'enceintes de refroidissement de la culasse, sans sortir du cadre de l'invention.Furthermore, the device 100 is not limited to the first and second means of regulating flow 112a and 112b, but can include as many flow regulation means than cooling of the cylinder head, without leaving the frame of the invention.

Dans ce mode de réalisation de l'invention, les moyens de régulation de débit 112a et 112b fonctionnent indifféremment de façon progressive ou de façon binaire, le choix du type d'ouverture dépendant du coût et de la capacité du moteur à supporter les variations rapides de débit et de température.In this embodiment of the invention, the flow control means 112a and 112b function either progressively or binary way, the choice of the type of opening depends the cost and the ability of the engine to withstand rapid variations in flow and temperature.

De plus, on peut prévoir divers modes de pilotage des moyens de régulation de débit 112a et 112b.In addition, various modes of control of the flow regulation means 112a and 112b.

A titre d'exemples, l'ouverture des moyens de régulation peut être fonction d'une cartographie régime/charge établie expérimentalement et différente pour chacun des moyens de régulation de débit, ou fonction d'une mesure de la température du fluide de refroidissement en sortie de l'enceinte concernée, lorsque cette enceinte est toujours débitante. D'autre part, le pilotage peut également être effectué selon une mesure de la température d'une partie métallique de la culasse ou de l'eau à l'intérieur du moteur, la température mesurée étant jugée représentative de l'état thermique de la zone considérée. Notons à ce titre que lorsque la température du liquide de refroidissement pilote l'ouvertur des moyens de régulation de débit, un simple thermostat à cire peut servir de vanne.For example, the opening of resources regulation can be a function of a mapping regime / load established experimentally and different for each of the flow regulation means, or function of a measurement of the fluid temperature of cooling at the outlet of the enclosure concerned, when this enclosure is still debitant. Else apart, piloting can also be done according to a measurement of the temperature of a metal part of the cylinder head or water inside the engine, the measured temperature being considered representative of the thermal state of the area considered. Note at this title only when the liquid temperature of cooling pilot opening the means of flow control, a simple wax thermostat can serve as a valve.

En outre, il est précisé que le pilotage des moyens de régulation de débit peut être mis en oeuvre en fonction du régime, de la charge, et d'une ou de plusieurs mesures de température du fluide de refroidissement.In addition, it is specified that the piloting flow control means can be implemented works according to the speed, the load, and one or more of several fluid temperature measurements of cooling.

Comme on peut le voir sur la figure 2, l'enceinte de refroidissement du bloc-cylindres 102 du dispositif de refroidissement 100 est située en dessous de la première enceinte de refroidissement de la culasse 104a, parallèlement et sur une même longueur. As you can see in Figure 2, the cooling chamber of the cylinder block 102 of the cooling device 100 is located below of the first cooling enclosure of the cylinder head 104a, parallel and on the same length.

L'enceinte de refroidissement du bloc-cylindres 102 dispose d'une entrée 140 et d'une sortie 142. L'entrée 140 est connectée à un conduit d'alimentation de fluide de refroidissement 144, lui-même connecté à la pompe 106 du dispositif 100. Notons que le conduit d' alimentation de fluide de refroidissement 144 est relié au conduit d'alimentation commun 132 des première et seconde enceintes de refroidissement de la culasse 104a,104b, ce conduit commun 132 étant connecté à la pompe 106 du dispositif 100.The cooling enclosure of the cylinder block 102 has an input 140 and an output 142. Input 140 is connected to a conduit coolant supply 144, itself connected to the pump 106 of the device 100. Let us note that the fluid supply line of cooling 144 is connected to the supply duct common 132 of the first and second enclosures of cooling of the cylinder head 104a, 104b, this conduit common 132 being connected to the device pump 106 100.

Les trois conduits d'alimentation 118,130,144 des trois enceintes de refroidissement 102, 104a,104b sont tous reliés avant d'être raccordés à la pompe 106, mais pourraient bien entendu être totalement indépendants, ou encore raccordés à deux ou trois pompes distinctes.The three supply lines 118,130,144 of the three cooling chambers 102, 104a, 104b are all connected before being connected to the pump 106, but could of course be completely independent, or connected to two or three separate pumps.

De plus, la sortie 142 est connectée à un conduit d'évacuation de fluide de refroidissement 146, lui-même connecté au conduit d'évacuation 120 de la première enceinte de refroidissement de la culasse 104a. Ainsi, le débit de fluide de refroidissement à travers l'enceinte de refroidissement du bloc-cylindres 102 est donc régulé par les premiers moyens de régulation de débit 112a, au même titre que le débit de fluide de refroidissement à travers la première enceinte de refroidissement de la culasse 104a.In addition, output 142 is connected to a cooling fluid discharge duct 146, itself connected to the exhaust duct 120 of the first cylinder cooling enclosure 104a. So the coolant flow at through the cooling enclosure of the cylinder block 102 is therefore regulated by the first means of flow control 112a, in the same way as the flow of coolant through the first cylinder cooling chamber 104a.

Par ailleurs, une autre possibilité pourrait consister à relier le conduit d'évacuation de fluide de refroidissement 146 à l'un quelconque des conduits d'évacuation de fluide de refroidissement des enceintes de refroidissement de la culasse, pour autant que les débits respectifs à travers ces deux enceintes soient compatibles.Another possibility could be to connect the exhaust pipe of coolant 146 to any of coolant evacuation pipes from cylinder cooling chambers, provided that the respective flow rates through these two enclosures are compatible.

Naturellement, le dispositif de refroidissement 100 peut être conçu de manière à ce que l'enceinte de refroidissement du bloc-cylindres 102 dispose de ses propres moyens de régulation de débit, ces derniers devant alors être raccordés à l' échange de chaleur principal air/liquide 108, et à l'échangeur de chaleur annexe 110 pour le chauffage de l'habitacle du véhicule.Naturally, the cooling 100 can be designed so that the cooling enclosure of the cylinder block 102 has its own flow regulation means, these must then be connected to the exchange air / liquid main heat 108, and at the exchanger heat pump annex 110 for interior heating of the vehicle.

Enfin, dans le but d'obtenir un dispositif de refroidissement 100 du type circuit fermé, l'échangeur de chaleur principal air/liquide 108 et l'échangeur de chaleur annexe 110 sont reliés à la pompe 106, respectivement à l'aide des conduits 148 et 150.Finally, in order to obtain a device cooling 100 of the closed circuit type, the main air / liquid heat exchanger 108 and the annex 110 heat exchanger are connected to the pump 106, respectively using pipes 148 and 150.

Bien entendu, diverses modifications peuvent être apportées par l'homme du métier au dispositif de refroidissement 100 qui vient d'être décrit, uniquement à titre d'exemple non limitatif.Of course, various modifications can be made by those skilled in the art to cooling device 100 which has just been described, only by way of nonlimiting example.

Claims (13)

Dispositif de refroidissement (100) pour moteur à combustion interne, ledit dispositif (100) comprenant une pluralité d'enceintes de refroidissement de la culasse du moteur (104a,104b), lesdites enceintes (104a,104b) étant séparées les unes des autres et aptes à être traversées par un fluide de refroidissement, caractérisé en ce que le dispositif (100) comporte en outre au moins des premiers (112a) et des seconds moyens de régulation de débit (112b) couplés respectivement à au moins une première enceinte de refroidissement de la culasse (104a) et au moins une seconde enceinte de refroidissement de la culasse (104b), lesdits premiers et seconds moyens de régulation de débit ( 112a, 112b) étant aptes à réguler le débit du fluide de refroidissement respectivement à travers chaque première enceinte de refroidissement (104a) et à travers chaque seconde enceinte de refroidissement (104b).Cooling device (100) for an internal combustion engine, said device (100) comprising a plurality of chambers for cooling the cylinder head of the engine (104a, 104b), said chambers (104a, 104b) being separated from one another and capable of being traversed by a cooling fluid, characterized in that the device (100) further comprises at least first (112a) and second flow control means (112b) coupled respectively to at least one first cooling enclosure of the cylinder head (104a) and at least a second cylinder cooling enclosure (104b), said first and second flow regulation means (112a, 112b) being able to regulate the flow of the coolant respectively through each first cooling enclosure (104a) and through each second cooling enclosure (104b). Dispositif de refroidissement (100) selon la revendication 1, caractérisé en ce que pour chaque enceinte de refroidissement de la culasse (104a,104b), le dispositif (100) comporte des moyens de régulation de débit (112a,112b) propres à ladite enceinte, aptes à réguler le débit du fluide de refroidissement à travers ladite enceinte.Cooling device (100) according to claim 1, characterized in that for each cylinder cooling enclosure (104a, 104b), the device (100) comprises flow control means (112a, 112b) specific to said enclosure , capable of regulating the flow rate of the cooling fluid through said enclosure. Dispositif de refroidissement (100) selon la revendication 1 ou la revendication 2, caractérisé en ce que pour chaque enceinte de refroidissement de la culasse (104a,104b), les moyens de régulation de débit associés ( 112a, 112b) sont indifféremment situés à l'entrée ou à la sortie de ladite enceinte.Cooling device (100) according to claim 1 or claim 2, characterized in that for each cylinder cooling enclosure (104a, 104b), the associated flow regulation means (112a, 112b) are indifferently located at the entry or exit of said enclosure. Dispositif de refroidissement (100) selon l'une quelconque des revendications 1 à 3, caractérisé en ce que pour chaque enceinte de refroidissement de la culasse (104a,104b), les moyens de régulation de débit associés (112a,112b) sont des moyens pris parmi le groupe constitué des vannes pilotées et des thermostats à cire.Cooling device (100) according to any one of claims 1 to 3, characterized in that for each cylinder cooling enclosure (104a, 104b), the associated flow control means (112a, 112b) are means selected from the group consisting of pilot operated valves and wax thermostats. Dispositif de refroidissement ( 100) selon l'une quelconque des revendications précédentes, caractérisé en ce que pour chaque enceinte de refroidissement de la culasse (104a,104b), les moyens de régulation de débit associés ( 112a, 112b) fonctionnent indifféremment de façon progressive ou de façon binaire.Cooling device (100) according to any one of the preceding claims, characterized in that for each cylinder cooling enclosure (104a, 104b), the associated flow regulation means (112a, 112b) operate indifferently in a progressive manner or binary. Dispositif de refroidissement ( 100) selon l'une quelconque des revendications précédentes, caractérisé en ce que pour au moins une desdites enceintes de refroidissement de la culasse (104a,104b), les moyens de régulation de débit associés (112a,112b) sont pilotés selon une cartographie du type régime/charge.Cooling device (100) according to any one of the preceding claims, characterized in that for at least one of said cylinder cooling chambers (104a, 104b), the associated flow regulation means (112a, 112b) are controlled according to a regime / load type mapping. Dispositif de refroidissement (100) selon l'une quelconque des revendications 1 à 5, caractérisé en ce que pour au moins une desdites enceintes de refroidissement de la culasse (104a,104b), les moyens de régulation de débit associés (112a,112b) sont pilotés selon une mesure de la température du fluide de refroidissement à la sortie de ladite enceinte. Cooling device (100) according to any one of claims 1 to 5, characterized in that for at least one of said cylinder cooling chambers (104a, 104b), the associated flow control means (112a, 112b) are controlled according to a measurement of the temperature of the cooling fluid at the outlet of said enclosure. Dispositif de refroidissement (100) selon l'une quelconque des revendications précédentes, caractérisé en ce qu' au moins une desdites enceintes de refroidissement de la culasse (104a,104b) s'étend sensiblement sur toute la longueur du bloc-cylindres du moteur.Cooling device (100) according to any one of the preceding claims, characterized in that at least one of said cylinder cooling chambers (104a, 104b) extends substantially over the entire length of the engine cylinder block. Dispositif de refroidissement (100) selon l'une quelconque des revendications précédentes, caractérisé en ce que chaque enceinte de refroidissement de la culasse (104a,104b) est connectée à un conduit d' alimentation de fluide de refroidissement (118,130), chaque conduit d'alimentation de fluide de refroidissement (118,130) étant connecté à une même pompe (106) du dispositif (100).Cooling device (100) according to any one of the preceding claims, characterized in that each cylinder cooling enclosure (104a, 104b) is connected to a coolant supply duct (118,130), each duct 'coolant supply (118,130) being connected to the same pump (106) of the device (100). Dispositif de refroidissement (100) selon l'une quelconque des revendications précédentes, caractérisé en ce que chaque enceinte de refroidissement de la culasse (104a,104b) est connectée à un conduit d'évacuation de fluide de refroidissement (120,134), chaque conduit d'évacuation de fluide de refroidissement (120,134) étant connecté d'une part à un échangeur de chaleur principal (108) du dispositif (100), et d'autre part à un échangeur de chaleur annexe (110) du dispositif (100).Cooling device (100) according to any one of the preceding claims, characterized in that each cylinder cooling enclosure (104a, 104b) is connected to a coolant discharge pipe (120,134), each pipe d coolant discharge (120,134) being connected on the one hand to a main heat exchanger (108) of the device (100), and on the other hand to an auxiliary heat exchanger (110) of the device (100). Dispositif de refroidissement (100) selon les revendications 9 et 10 combinées, caractérisé en ce qu'il comprend également une enceinte de refroidissement du bloc-cylindres du moteur (102), ladite enceinte (102) étant connectée d'une part à la pompe (106) dudit dispositif (100), et d'autre part à un conduit d'évacuation de fluide de refroidissement (120) d'une enceinte de refroidissement de la culasse (104a), le débit de fluide de refroidissement à travers ladite enceinte de refroidissement du bloc-cylindres (102) étant apte à être régulé par les moyens de régulation de débit (112a) couplés à ladite enceinte de refroidissement de la culasse (104a).Cooling device (100) according to claims 9 and 10 combined, characterized in that it also comprises an enclosure for cooling the engine block (102), said enclosure (102) being connected on the one hand to the pump. (106) of said device (100), and on the other hand to a coolant discharge duct (120) from a cooling enclosure of the cylinder head (104a), the flow of cooling fluid through said enclosure for cooling the cylinder block (102) being able to be regulated by the flow control means (112a) coupled to said cylinder cooling enclosure (104a). Dispositif de refroidissement (100) selon la revendication 11, caractérisé en ce que la pompe (106) du dispositif (100) est connectée d' une part à l'échangeur de chaleur principal (108) du dispositif (100), et d'autre part à l'échangeur de chaleur annexe (110) du dispositif (100).Cooling device (100) according to claim 11, characterized in that the pump (106) of the device (100) is connected on the one hand to the main heat exchanger (108) of the device (100), and on the other hand to the annex heat exchanger (110) of the device (100). Dispositif de refroidissement (100) selon l'une quelconque des revendications précédentes, caractérisé en ce qu' il s' applique à un moteur à combustion interne de véhicule automobile.Cooling device (100) according to any one of the preceding claims, characterized in that it applies to an internal combustion engine of a motor vehicle.
EP03291583A 2002-06-27 2003-06-27 Cooling device for an internal combustion engine Withdrawn EP1375857A1 (en)

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FR0208012A FR2841596B1 (en) 2002-06-27 2002-06-27 COOLING DEVICE FOR INTERNAL COMBUSTION ENGINE
FR0208012 2002-06-27

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WO2004074652A1 (en) * 2003-02-18 2004-09-02 Daimlerchrysler Ag Internal combustion engine comprising a coolant circuit
FR2860833A1 (en) * 2003-10-08 2005-04-15 Peugeot Citroen Automobiles Sa Cooling circuit for internal combustion engine of motor vehicle, has unit managing coolant flow, and three distinct passages including respective inlets and outlets to permit independent circulation of coolant through each passage
EP1698770A1 (en) 2005-03-04 2006-09-06 Ford Global Technologies, Inc. Separate cooling of cylinder head
WO2007028930A1 (en) * 2005-09-09 2007-03-15 Renault S.A.S Water outlet assembly for the cylinder head of an internal combustion engine
FR2905423A1 (en) * 2006-09-06 2008-03-07 Peugeot Citroen Automobiles Sa DEVICE FOR DISPENSING COOLANT IN A MOTOR VEHICLE ENGINE
FR2905422A1 (en) * 2006-09-06 2008-03-07 Peugeot Citroen Automobiles Sa Engine e.g. diesel engine, cooling system for motor vehicle, has baffle for separating liquid into two flows, and deflector parallel elongated to axis of cylinders of hood, where baffle is located in upstream of liquid inlet in hood
FR2907503A1 (en) * 2006-10-19 2008-04-25 Renault Sas Multi-cylinder internal combustion engine e.g. oil engine, cooling device for motor vehicle, has cooling enclosure of crankcase communicating with upper stage by orifice of gasket and connection, and with one compartment by other orifice
EP1947308A1 (en) * 2007-01-17 2008-07-23 Ford Global Technologies, LLC Integrated motor cooling system
FR2938011A1 (en) * 2008-11-05 2010-05-07 Renault Sas COOLING DEVICE FOR INTERNAL COMBUSTION ENGINE.
EP2309106A1 (en) 2009-07-30 2011-04-13 Ford Global Technologies, LLC Cooling system
EP2309114A1 (en) 2009-07-30 2011-04-13 Ford Global Technologies, LLC Cooling system
EP2508727A1 (en) * 2009-12-01 2012-10-10 Toyota Jidosha Kabushiki Kaisha Engine cooling device
FR3014485A1 (en) * 2013-12-10 2015-06-12 Renault Sa THERMAL ENGINE OF A MOTOR VEHICLE WITH AN IMPROVED COOLING CIRCUIT
DE102015009501A1 (en) * 2015-07-22 2017-01-26 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) Engine cooling
DE102016215310A1 (en) * 2016-08-17 2018-02-22 Bayerische Motoren Werke Aktiengesellschaft Method for cooling a reciprocating engine, computer program product and engine
DE102018201645B3 (en) 2018-02-02 2019-08-08 Ford Global Technologies, Llc block

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Cited By (28)

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Publication number Priority date Publication date Assignee Title
US7318395B2 (en) 2003-02-18 2008-01-15 Daimler Chrysler Ag Internal combustion engine having a coolant circuit
WO2004074652A1 (en) * 2003-02-18 2004-09-02 Daimlerchrysler Ag Internal combustion engine comprising a coolant circuit
FR2860833A1 (en) * 2003-10-08 2005-04-15 Peugeot Citroen Automobiles Sa Cooling circuit for internal combustion engine of motor vehicle, has unit managing coolant flow, and three distinct passages including respective inlets and outlets to permit independent circulation of coolant through each passage
EP2128399A1 (en) 2005-03-04 2009-12-02 Ford Global Technologies, LLC Separate cooling of cylinder head
EP1698770A1 (en) 2005-03-04 2006-09-06 Ford Global Technologies, Inc. Separate cooling of cylinder head
WO2007028930A1 (en) * 2005-09-09 2007-03-15 Renault S.A.S Water outlet assembly for the cylinder head of an internal combustion engine
FR2890687A1 (en) * 2005-09-09 2007-03-16 Renault Sas WATER OUTPUT HOUSING FOR THE CYLINDER HEAD OF AN INTERNAL COMBUSTION ENGINE
FR2905423A1 (en) * 2006-09-06 2008-03-07 Peugeot Citroen Automobiles Sa DEVICE FOR DISPENSING COOLANT IN A MOTOR VEHICLE ENGINE
WO2008029058A2 (en) * 2006-09-06 2008-03-13 Peugeot Citroën Automobiles SA Device for distributing cooling fluid in a motor vehicle engine
WO2008029058A3 (en) * 2006-09-06 2008-04-24 Peugeot Citroen Automobiles Sa Device for distributing cooling fluid in a motor vehicle engine
FR2905422A1 (en) * 2006-09-06 2008-03-07 Peugeot Citroen Automobiles Sa Engine e.g. diesel engine, cooling system for motor vehicle, has baffle for separating liquid into two flows, and deflector parallel elongated to axis of cylinders of hood, where baffle is located in upstream of liquid inlet in hood
FR2907503A1 (en) * 2006-10-19 2008-04-25 Renault Sas Multi-cylinder internal combustion engine e.g. oil engine, cooling device for motor vehicle, has cooling enclosure of crankcase communicating with upper stage by orifice of gasket and connection, and with one compartment by other orifice
EP1947308A1 (en) * 2007-01-17 2008-07-23 Ford Global Technologies, LLC Integrated motor cooling system
US7721683B2 (en) 2007-01-17 2010-05-25 Ford Global Technologies, Llc Integrated engine thermal management
WO2010052402A1 (en) * 2008-11-05 2010-05-14 Renault S.A.S. Device for cooling an internal combustion engine
FR2938011A1 (en) * 2008-11-05 2010-05-07 Renault Sas COOLING DEVICE FOR INTERNAL COMBUSTION ENGINE.
EP2309106A1 (en) 2009-07-30 2011-04-13 Ford Global Technologies, LLC Cooling system
EP2309114A1 (en) 2009-07-30 2011-04-13 Ford Global Technologies, LLC Cooling system
EP2322785A1 (en) 2009-07-30 2011-05-18 Ford Global Technologies, LLC Cooling system
EP2325453A1 (en) 2009-07-30 2011-05-25 Ford Global Technologies, LLC Cooling system
EP2508727A4 (en) * 2009-12-01 2013-12-25 Toyota Motor Co Ltd Engine cooling device
EP2508727A1 (en) * 2009-12-01 2012-10-10 Toyota Jidosha Kabushiki Kaisha Engine cooling device
US8746187B2 (en) 2009-12-01 2014-06-10 Toyota Jidosha Kabushiki Kaisha Engine cooling device
FR3014485A1 (en) * 2013-12-10 2015-06-12 Renault Sa THERMAL ENGINE OF A MOTOR VEHICLE WITH AN IMPROVED COOLING CIRCUIT
DE102015009501A1 (en) * 2015-07-22 2017-01-26 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) Engine cooling
US10119451B2 (en) 2015-07-22 2018-11-06 GM Global Technology Operations LLC Internal combustion engine cooling
DE102016215310A1 (en) * 2016-08-17 2018-02-22 Bayerische Motoren Werke Aktiengesellschaft Method for cooling a reciprocating engine, computer program product and engine
DE102018201645B3 (en) 2018-02-02 2019-08-08 Ford Global Technologies, Llc block

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