EP0123620A1 - Apparatus for rapidly heating and thermally controlling the lubrication oil of an internal-combustion engine - Google Patents

Apparatus for rapidly heating and thermally controlling the lubrication oil of an internal-combustion engine Download PDF

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Publication number
EP0123620A1
EP0123620A1 EP84400784A EP84400784A EP0123620A1 EP 0123620 A1 EP0123620 A1 EP 0123620A1 EP 84400784 A EP84400784 A EP 84400784A EP 84400784 A EP84400784 A EP 84400784A EP 0123620 A1 EP0123620 A1 EP 0123620A1
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EP
European Patent Office
Prior art keywords
engine
lubricating oil
cylinders
coolant
oil
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
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EP84400784A
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German (de)
French (fr)
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EP0123620B1 (en
Inventor
Armand Castarede
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Renault SAS
Regie Nationale des Usines Renault
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Renault SAS
Regie Nationale des Usines Renault
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Priority to AT84400784T priority Critical patent/ATE28762T1/en
Publication of EP0123620A1 publication Critical patent/EP0123620A1/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M5/00—Heating, cooling, or controlling temperature of lubricant; Lubrication means facilitating engine starting
    • F01M5/02—Conditioning lubricant for aiding engine starting, e.g. heating
    • 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
    • F01P9/00—Cooling having pertinent characteristics not provided for in, or of interest apart from, groups F01P1/00 - F01P7/00
    • F01P9/04—Cooling having pertinent characteristics not provided for in, or of interest apart from, groups F01P1/00 - F01P7/00 by simultaneous or alternative use of direct air-cooling and liquid cooling
    • 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
    • F01P2003/006—Liquid cooling the liquid being oil
    • 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
    • F01P2003/008—Liquid cooling the liquid being water and oil
    • 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

Definitions

  • the present invention relates to a method and a device for rapidly warming up and thermally regulating the lubricating oil of an internal combustion engine. It applies to internal combustion engines in which cooling is ensured by the circulation of a fluid in suitably arranged conduits in the region of the combustion chamber.
  • a cooling fluid having a high specific heat and a low viscosity such as a water-additives mixture
  • This cooling fluid pressurized by a pump circulates in an annular chamber whose thickness, which varies according to the means of production such as sand cores or molding parts of steel molds, reaches several millimeters.
  • This thickness given to the blade of the cooling fluid proves to be superabundant because only a surface layer, being in contact with the walls of the cooling chamber of the jacket or of the cylinder, is used for the extraction of calories.
  • the flow rate of the cooling fluid necessary for a suitable heat exchange, implies a particularly costly flow.
  • the present invention aims to exploit the aforementioned property specific to the surface layers and for this purpose proposes to use the so-called external wall of the cooling chamber, opposite to the liners or to that forming the cylinders, for transmitting or removing calories from the engine lubricating oil by making the best use of its calorific capacities.
  • This lubricating oil can thus be quickly brought to temperature and its temperature can be regulated by heat exchange with the engine coolant.
  • the process for rapidly warming up and regulating the temperature of the lubricating oil for an internal combustion engine of the type cooled by a coolant with high specific heat and low viscosity, circulating around the cylinders or liners of this engine consists of a heat exchange between this coolant and this lubricating oil at the upper zones of these cylinders or of these liners, this oil being capable of capturing calories coming from the cylinder head from this engine to transfer them to this coolant.
  • This heat exchange makes it possible to dissipate the heat coming from the combustion chamber on the one hand, and from the cylinder head on the other hand, in the cooling fluid.
  • the engine lubricating oil will be used to capture calories from the cylinder head, the temperatures of which can greatly exceed those of the cylinders or liners. This results in a very rapid rise in temperature of this oil associated with regulation of the temperature of this oil by heat exchange with the coolant.
  • a device for implementing the aforementioned method comprises, around the cylinders or liners, a first annular chamber in which circulates a coolant from the engine and a second annular chamber, concentric with the previous one , in which the engine lubricating oil circulates, this second chamber partially or totally surrounding the first so as to form therewith a heat exchanger.
  • the engine shown in the single figure comprises a cylinder head 2, a cylinder block 4 and a casing 5.
  • Each cylinder 6 of the block 4 receives a dry jacket 8 and possibly a removable wet jacket.
  • the upper region of each cylinder 6 or jacket 8 is conventionally surrounded by a first chamber annular cooling 10 in which circulates a water-antifreeze mixture 12.
  • This chamber has inner 9 and outer 11 walls.
  • the engine lubrication circuit essentially and conventionally comprises a positive displacement pump 20, an oil pressure limiter 22, an oil filter 24 and a suction strainer 26.
  • the outer wall 11 of the chamber 10 can therefore transmit or remove calories from the lubricating oil 18 which licks it.
  • the fins 16 favor the heat transfer between the two annular chambers 10 and 14. As it is desirable to maintain the cylinder head 2 and the members which are attached thereto (valve seats, valves, spark plugs, etc.) at a compatible thermal level with good mechanical strength when hot, we will use this lubricating oil 18 to capture the calories from of this cylinder head 2, the temperatures of which may exceed those of the cylinders 6 or of the liners 8.
  • this oil 18 When the engine is started cold, this oil 18 will be quickly brought to temperature, by loop circulation by means of a positive displacement pump and by heat exchange with the cylinder head 2. The temperature of this oil 18 can then be regulated by heat exchange at through the outer wall 11 of the water chamber 10.
  • the minimum oil flow used for cooling the cylinder head 2 is a flow conditioned by the idling lubrication pressure of the hot engine.
  • the maximum flow rate corresponds to that of the relief valve 22, used to limit the lubrication pressure to a minimum value required, in the conventional volumetric oil pump 20.
  • the energy expended for circulating the lubricating oil 18 used for cooling the cylinder head 2 varies essentially as a function of the pressure drops in this cylinder head; however, these are largely compensated by the fact that the temperature rise of the oil is very rapid, that the temperature of the oil is then regulated, which makes it possible to use an oil of low viscosity.
  • the heat exchange between the cooling fluid 12 and the lubricating oil 18 therefore makes it possible to significantly reduce the energy expenditure necessary to reach the optimum operating temperature of an internal combustion engine.
  • the cooling fluid 12 while only passing through the water chamber 10 around the cylinders 6, captures the assembly there. calories from the engine.
  • the pressure losses of the water cooling circuit are considerably reduced since the latter no longer concerns the cylinder head now cooled by the lubricating oil.
  • the length and the flow rate of this circuit are then substantially halved and the cooling radiator can be optimized as a function of this flow rate and the temperature variation interval of the engine.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Control Of Electric Motors In General (AREA)

Abstract

1. An arrangement for rapid warm-up and thermal regulation of the lubricating oil (18) of an internal combustion engine of the type which is cooled by a cooling fluid (12) having a high specific heat and a low viscosity such as a mixture of water and additives, which circulates around the cylinders (6) or the liners (8) of said engine, characterised in that it comprises, around said cylinders (6) or liners (8), a first annular chamber (10) in which the cooling fluid (12) of the engine circulates and a second annular chamber (14) in which the lubrificating oil (18) of the engine circulates, said second chamber at least partially surrounding the first chamber so as to form therewith a heat exchanger.

Description

La présente invention se rapporte à un procédé et un dispositif pour la mise en température rapide et la régulation thermique de l'huile de lubrification d'un moteur à combustion interne. Elle s'applique aux moteurs à combustion interne dans lesquels le refroidissement est assuré par la circulation d'un fluide dans des conduits convenablement aménagés dans la région de la chambre de combustion.The present invention relates to a method and a device for rapidly warming up and thermally regulating the lubricating oil of an internal combustion engine. It applies to internal combustion engines in which cooling is ensured by the circulation of a fluid in suitably arranged conduits in the region of the combustion chamber.

De nombreux procédés et dispositifs ont déjà été envisagés pour limiter la température des cylindres ou des chemises dans lesquels les pistons doivent se mouvoir avec le moindre frottement.Numerous methods and devices have already been envisaged for limiting the temperature of the cylinders or liners in which the pistons must move with the least friction.

Pour refroidir efficacement un moteur à combustion interne avec une dépense énergétique optimale, un fluide de refroidissement présentant une chaleur spécifique élevée et une faible viscosité, tel qu'un mélange eau- additifs, circule habituellement autour de ces cylindres ou ces chemises. Ce fluide de refroidissement mis en pression par une pompe circule dans une chambre annulaire dont l'épaisseur, qui varie en fonction des moyens de réalisation tels que des noyaux sable ou des parties moulantes des moules en acier, atteint plusieurs millimètres. Cette épaisseur donnée à la lame du fluide refroidisseur s'avère surabondante car seule une couche superficielle, se trouvant en contact avec les parois de la chambre de refroidissement de la chemise ou du cylindre, sert à l'extraction des calories. Il en résulte que la vitesse d'écoulement du fluide refroidisseur, nécessaire à un échange thermique convenable, implique un débit particulièrement coûteux.To efficiently cool an internal combustion engine with optimal energy expenditure, a cooling fluid having a high specific heat and a low viscosity, such as a water-additives mixture, usually circulates around these cylinders or these liners. This cooling fluid pressurized by a pump circulates in an annular chamber whose thickness, which varies according to the means of production such as sand cores or molding parts of steel molds, reaches several millimeters. This thickness given to the blade of the cooling fluid proves to be superabundant because only a surface layer, being in contact with the walls of the cooling chamber of the jacket or of the cylinder, is used for the extraction of calories. As a result, the flow rate of the cooling fluid, necessary for a suitable heat exchange, implies a particularly costly flow.

La présente invention vise à exploiter la propriété précitée propre aux couches superficielles et propose à cet effet, d'utiliser la paroi dite extérieure de la chambre de refroidissement, opposée aux chemises ou à celle formant les cylindres, pour transmettre ou enlever des calories à l'huile de lubrification du moteur en exploitant au mieux les capacités calorifiques de celle-ci.The present invention aims to exploit the aforementioned property specific to the surface layers and for this purpose proposes to use the so-called external wall of the cooling chamber, opposite to the liners or to that forming the cylinders, for transmitting or removing calories from the engine lubricating oil by making the best use of its calorific capacities.

Cette huile de lubrification peut ainsi être mise rapidement en température et sa température peut être régulée par échange thermique avec le fluide de refroidissement du moteur.This lubricating oil can thus be quickly brought to temperature and its temperature can be regulated by heat exchange with the engine coolant.

Suivant une particularité de l'invention, le procédé pour la mise en température rapide et la régulation de la température de l'huile de lubrification pour un moteur à combustion interne du type refroidi par un fluide refroidisseur à chaleur spécifique élevée et à faible viscosité, circulant autour des cylindres ou des chemises de ce moteur, consiste en un échange thermique entre ce fluide refroidisseur et cette huile de lubrification au niveau des zones supérieures de ces cylindres ou de ces chemises, cette huile étant susceptible de capter des calories provenant de la culasse de ce moteur pour les transférer à ce fluide refroidisseur. Cet échange thermique permet de dissiper la chaleur provenant de la chambre de combustion d'une part, et de la culasse d'autre part, dans le fluide refroidisseur.According to a particular feature of the invention, the process for rapidly warming up and regulating the temperature of the lubricating oil for an internal combustion engine of the type cooled by a coolant with high specific heat and low viscosity, circulating around the cylinders or liners of this engine, consists of a heat exchange between this coolant and this lubricating oil at the upper zones of these cylinders or of these liners, this oil being capable of capturing calories coming from the cylinder head from this engine to transfer them to this coolant. This heat exchange makes it possible to dissipate the heat coming from the combustion chamber on the one hand, and from the cylinder head on the other hand, in the cooling fluid.

L'huile de lubrification du moteur sera utilisée pour capter les calories provenant de la culasse dont les températures peuvent largement dépasser celles des cylindres ou des chemises. Il en résulte une montée en température très rapide de cette huile associée à une régulation de la température de cette huile par échange thermique avec le fluide refroidisseur.The engine lubricating oil will be used to capture calories from the cylinder head, the temperatures of which can greatly exceed those of the cylinders or liners. This results in a very rapid rise in temperature of this oil associated with regulation of the temperature of this oil by heat exchange with the coolant.

Lors du démarrage à froid du moteur, l'huile est mise rapidement en température et, en fonctionnement normal, elle cède des calories au fluide de refroidissement. Cet échange est thermiquement gratuit puisqu'il résulte de l'écoulement du fluide refroidisseur le long de la paroi opposée aux chemises ou à celle formant les cylindres.When the engine is started cold, the oil quickly warms up and, during normal operation, it gives off calories to the coolant. This exchange is thermally free since it results from the flow of the coolant fluid along the wall opposite the liners or that forming the cylinders.

Suivant une autre particularité de l'invention, un dispositif pour la mise en oeuvre du procédé précité comprend, autour des cylindres ou des chemises, une première chambre annulaire dans laquelle circule un fluide refroidisseur du moteur et une seconde chambre annulaire, concentrique à la précédente, dans laquelle circule l'huile de lubrification du moteur, cette seconde chambre entourant partiellement ou totalement la première de manière à former avec celle-ci un échangeur thermique.According to another feature of the invention, a device for implementing the aforementioned method comprises, around the cylinders or liners, a first annular chamber in which circulates a coolant from the engine and a second annular chamber, concentric with the previous one , in which the engine lubricating oil circulates, this second chamber partially or totally surrounding the first so as to form therewith a heat exchanger.

Par cette disposition, on favorise la mise en température rapide de l'huile et le refroidissement des chambres de combustion et des culasses. De cette manière, on diminue la dépense énergétique induite par le fonctionnement du moteur, principalement durant les phases froides.By this arrangement, the rapid heating of the oil and the cooling of the combustion chambers and cylinder heads are favored. In this way, the energy expenditure induced by the operation of the engine is reduced, mainly during the cold phases.

De plus, la montée très rapide en température de l'huile de lubrification suivie d'une régulation thermique de celle-ci diminue l'énergie dépensée pour la mise en circulation de cette huile et permet d'employer une huile de faible viscosité.In addition, the very rapid rise in temperature of the lubricating oil followed by thermal regulation of the latter reduces the energy expended for the circulation of this oil and makes it possible to use an oil of low viscosity.

D'autres particularités et avantages de l'invention apparaîtront plus clairement en regard de la description et du dessin annexé représentant un exemple de réalisation de l'invention nullement limitatif, dessin dans lequel :

  • - la figure unique représente une vue schématique d'un moteur à combustion interne montrant un dispositif pour la mise en température rapide et la régulation thermique de l'huile de lubrification conforme à l'inventionjet le circuit de lubrification associé.
Other features and advantages of the invention will appear more clearly with reference to the description and the appended drawing representing an embodiment of the invention which is in no way limitative, a drawing in which:
  • - The single figure shows a schematic view of an internal combustion engine showing a device for rapid heating and thermal regulation of the lubricating oil according to the invention j and the associated lubrication circuit.

Le moteur représenté sur la figure unique comprend une culasse 2, un bloc cylindres 4 et un carter 5. Chaque cylindre 6 du bloc 4 reçoit une chemise sèche 8 et éventuellement une chemise humide amovible. La région supérieure de chaque cylindre 6 ou chemise 8 est entourée de façon conventionnelle par une première chambre annulaire 10 de refroidissement dans laquelle circule un mélange eau-antigel 12. Cette chambre présente des parois intérieure 9 et extérieure 11.The engine shown in the single figure comprises a cylinder head 2, a cylinder block 4 and a casing 5. Each cylinder 6 of the block 4 receives a dry jacket 8 and possibly a removable wet jacket. The upper region of each cylinder 6 or jacket 8 is conventionally surrounded by a first chamber annular cooling 10 in which circulates a water-antifreeze mixture 12. This chamber has inner 9 and outer 11 walls.

Conformément à l'invention, une deuxième chambre annulaire 14 à ailettes 16, concentrique à la première 10, dans laquelle circule l'huile 18 de graissage du moteur et de refroidissement de la culasse 2, entoure partiellement la première chambre 10 de refroidissement de manière à former avec celle-ci un échangeur thermique.According to the invention, a second annular chamber 14 with fins 16, concentric with the first 10, in which the oil 18 for lubricating the engine and for cooling the cylinder head 2 circulates, partially surrounds the first cooling chamber 10 so to form therewith a heat exchanger.

Le circuit de graissage du moteur comprend essentiellement et de façon conventionnelle une pompe volumétrique 20, un limiteur de pression d'huile 22, un filtre à huile 24 et une crépine d'aspiration 26.The engine lubrication circuit essentially and conventionally comprises a positive displacement pump 20, an oil pressure limiter 22, an oil filter 24 and a suction strainer 26.

Le fonctionnement du dispositif conforme à l'invention est décrit ci-après.The operation of the device according to the invention is described below.

Seules, les couches superficielles de la lame d'eau 12, de faible épaisseur, et se trouvant en contact avec les parois 9 et 11 de la chambre de refroidissement 10, extraient des calories provenant des cylindres 6 et de la culasse 2. La veine milieu de la lame d'eau contenue dans la chambre 10 constitue une veine thermiquement inerte.Only the superficial layers of the water layer 12, of small thickness, and being in contact with the walls 9 and 11 of the cooling chamber 10, extract calories from the cylinders 6 and the cylinder head 2. The vein middle of the layer of water contained in the chamber 10 constitutes a thermally inert vein.

La paroi extérieure 11 de la chambre 10 peut donc transmettre ou enlever des calories à l'huile de graissage 18 qui la lèche.The outer wall 11 of the chamber 10 can therefore transmit or remove calories from the lubricating oil 18 which licks it.

Les ailettes 16 favorisent le transfert thermique entre les deux chambres annulaires 10 et 14. Comme il est souhaitable de maintenir la culasse 2 et les organes qui y sont rapportés (sièges de soupapes, soupapes, bougies, ...) à un niveau thermique compatible avec une bonne tenue mécanique à chaud, on va utiliser cette huile de graissage 18 pour capter les calories provenant de cette culasse 2 dont les températures peuvent dépasser celles des cylindres 6 ou des chemises 8.The fins 16 favor the heat transfer between the two annular chambers 10 and 14. As it is desirable to maintain the cylinder head 2 and the members which are attached thereto (valve seats, valves, spark plugs, etc.) at a compatible thermal level with good mechanical strength when hot, we will use this lubricating oil 18 to capture the calories from of this cylinder head 2, the temperatures of which may exceed those of the cylinders 6 or of the liners 8.

Au démarrage du moteur à froid, cette huile 18 sera mise rapidement en température, par circulation en boucle au moyen d'une pompe volumétrique et par échange thermique avec la culasse 2. La température de cette huile 18 peut ensuite être régulée par échange thermique à travers la paroi extérieure 11 de la chambre d'eau 10.When the engine is started cold, this oil 18 will be quickly brought to temperature, by loop circulation by means of a positive displacement pump and by heat exchange with the cylinder head 2. The temperature of this oil 18 can then be regulated by heat exchange at through the outer wall 11 of the water chamber 10.

Cet échange thermique avec la culasse 2 permet d'atteindre très rapidement la température maximale de l'huile de graissage 18 du moteur et de diminuer ainsi l'énergie dépensée pour la circulation de celle-ci. Le débit d'huile minimal utilisé pour le refroidissement de la culasse 2 est un débit conditionné par la pression de graissage au ralenti du moteur à chaud. Le débit maximal correspond à celui du clapet de décharge 22, utilisé pour limiter la pression de graissage à une valeur minimale nécessaire, dans la pompe à huile volumétrique conventionnelle 20.This heat exchange with the cylinder head 2 makes it possible to very quickly reach the maximum temperature of the lubricating oil 18 of the engine and thus to reduce the energy expended for the circulation thereof. The minimum oil flow used for cooling the cylinder head 2 is a flow conditioned by the idling lubrication pressure of the hot engine. The maximum flow rate corresponds to that of the relief valve 22, used to limit the lubrication pressure to a minimum value required, in the conventional volumetric oil pump 20.

L'énergie dépensée pour la mise en circulation de l'huile de graissage 18 servant au refroidissement de la culasse 2 varie essentiellement en fonction des pertes de charge dans cette culasse ; toutefois, celles-ci sont largement compensées par le fait que la montée en température de l'huile est très rapide, que la température de l'huile est ensuite régulée, ce qui permet d'employer une huile de faible viscosité.The energy expended for circulating the lubricating oil 18 used for cooling the cylinder head 2 varies essentially as a function of the pressure drops in this cylinder head; however, these are largely compensated by the fact that the temperature rise of the oil is very rapid, that the temperature of the oil is then regulated, which makes it possible to use an oil of low viscosity.

L'échange thermique entre le fluide refroidisseur 12 et l'huile de graissage 18 permet donc de réduire de façon importante la dépense énergétique nécessaire pour atteindre la température optimale de fonctionnement d'un moteur à combustion interne.The heat exchange between the cooling fluid 12 and the lubricating oil 18 therefore makes it possible to significantly reduce the energy expenditure necessary to reach the optimum operating temperature of an internal combustion engine.

En effet, le fluide refroidisseur 12, tout en ne parcourant que la chambre d'eau 10 autour des cylindres 6, y capte l'ensemble des calories dispensées par le moteur. De plus, les pertes de charge du circuit de refroidissement par eau sont considérablement diminuées puisque ce dernier ne concerne plus la culasse refroidie maintenant par l'huile de graissage. La longueur et le débit de ce circuit sont alors sensiblement divisés par deux et le radiateur de refroidissement peut être optimisé en fonction de ce débit et de l'intervalle de variation de température du moteur.In fact, the cooling fluid 12, while only passing through the water chamber 10 around the cylinders 6, captures the assembly there. calories from the engine. In addition, the pressure losses of the water cooling circuit are considerably reduced since the latter no longer concerns the cylinder head now cooled by the lubricating oil. The length and the flow rate of this circuit are then substantially halved and the cooling radiator can be optimized as a function of this flow rate and the temperature variation interval of the engine.

Claims (3)

1. Procédé pour la mise en température rapide et la régulation thermique de l'huile de lubrification (18) d'un moteur à combustion interne du type refroidi par un fluide refroidisseur (12) à chaleur spécifique élevée et à faible viscosité tel qu'un mélange eau-additifs, circulant autour des cylindres (6) ou des chemises (8) de ce moteur, caractérisé en ce qu'il consiste en un échange thermique entre ce fluide refroidisseur (12) et cette huile de lubrification (18) au niveau des zones supérieures de ces cylindres ou de ces chemises, cette huile (18) étant susceptible de capter des calories provenant de la culasse (2) de ce moteur pour les transférer à ce fluide refroidisseur (12).1. Method for rapidly warming up and thermally regulating the lubricating oil (18) of an internal combustion engine of the type cooled by a coolant (12) with high specific heat and low viscosity such as a water-additives mixture, circulating around the cylinders (6) or the liners (8) of this engine, characterized in that it consists of a heat exchange between this coolant (12) and this lubricating oil (18) at the level of the upper zones of these cylinders or of these liners, this oil (18) being capable of capturing calories coming from the cylinder head (2) of this engine in order to transfer them to this coolant (12). 2. Dispositif pour la mise en oeuvre du procédé selon la revendication 1, caractérisé en ce qu'il comprend autour des cylindres (6) ou des chemises (8), une première chambre annulaire (10) dans laquelle circule le fluide refroidisseur (12) du moteur et une seconde chambre annulaire (14) dans laquelle circule l'huile de lubrification (18) du moteur, cette seconde chambre entourant au moins partiellement la première de manière à former avec celle-ci un échangeur thermique.2. Device for implementing the method according to claim 1, characterized in that it comprises around the cylinders (6) or the liners (8), a first annular chamber (10) in which the coolant circulates (12 ) of the engine and a second annular chamber (14) in which the lubricating oil (18) of the engine circulates, this second chamber at least partially surrounding the first so as to form therewith a heat exchanger. 3. Dispositif selon la revendication 2, caractérisé en ce que cette seconde chambre annulaire (14) présente une série d'ailettes (16) qui favorisent le transfert thermique entre le fluide refroidisseur (12) et l'huile de lubrification (18).3. Device according to claim 2, characterized in that this second annular chamber (14) has a series of fins (16) which promote the thermal transfer between the coolant (12) and the lubricating oil (18).
EP84400784A 1983-04-22 1984-04-19 Apparatus for rapidly heating and thermally controlling the lubrication oil of an internal-combustion engine Expired EP0123620B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84400784T ATE28762T1 (en) 1983-04-22 1984-04-19 DEVICE FOR RAPID HEATING AND THERMAL REGULATION OF LUBRICANT OIL OF AN INTERNAL ENGINE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8306648 1983-04-22
FR8306648A FR2544793B1 (en) 1983-04-22 1983-04-22 METHOD AND DEVICE FOR QUICK TEMPERATURE AND THERMAL REGULATION OF THE LUBRICATING OIL OF AN INTERNAL COMBUSTION ENGINE

Publications (2)

Publication Number Publication Date
EP0123620A1 true EP0123620A1 (en) 1984-10-31
EP0123620B1 EP0123620B1 (en) 1987-08-05

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EP84400784A Expired EP0123620B1 (en) 1983-04-22 1984-04-19 Apparatus for rapidly heating and thermally controlling the lubrication oil of an internal-combustion engine

Country Status (6)

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EP (1) EP0123620B1 (en)
JP (2) JPS59206608A (en)
AT (1) ATE28762T1 (en)
DE (1) DE3465209D1 (en)
ES (1) ES531757A0 (en)
FR (1) FR2544793B1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2727727A1 (en) * 1994-12-02 1996-06-07 Renault Crank case bearings for IC engines
KR100552205B1 (en) * 2002-10-22 2006-02-13 현대자동차주식회사 Oil heating device
WO2010106179A1 (en) 2009-03-19 2010-09-23 Ino8 Pty Ltd Method and apparatus for oiling rotating or oscillating components
RU2472012C1 (en) * 2011-09-19 2013-01-10 Закрытое акционерное общество "Научно-исследовательский и конструкторский институт центробежных и роторных компрессоров им. В.Б. Шнеппа" Pre-startup oil heating device
RU188973U1 (en) * 2018-11-19 2019-04-30 ФЕДЕРАЛЬНОЕ ГОСУДАРСТВЕННОЕ КАЗЕННОЕ ВОЕННОЕ ОБРАЗОВАТЕЛЬНОЕ УЧРЕЖДЕНИЕ ВЫСШЕГО ОБРАЗОВАНИЯ Военная академия Ракетных войск стратегического назначения имени Петра Великого МИНИСТЕРСТВА ОБОРОНЫ РОССИЙСКОЙ ФЕДЕРАЦИИ DEVICE OF EXTRA PRE-AIR WARMING UP OF MOTOR OIL OF INTERNAL COMBUSTION ENGINE IN LOW TEMPERATURE CONDITIONS

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61135911A (en) * 1984-12-06 1986-06-23 Mitsubishi Heavy Ind Ltd Lubricant oil heating device for internal combustion engine
JPH0830404B2 (en) * 1985-08-01 1996-03-27 ヤマハ発動機株式会社 Lubricating device for V-type internal combustion engine
DE102007020807A1 (en) * 2007-05-04 2008-11-13 Audi Ag Lubricating device of internal combustion engine, has lubricant discharged by lubricant pump of reservoir to lubricating point in cylinder head of internal combustion engine
CN115217573B (en) * 2022-02-15 2024-01-23 广州汽车集团股份有限公司 Engine oil conveying system and engine oil temperature control method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB327791A (en) * 1929-02-01 1930-04-17 Sydney Slater Guy Improvements in or relating to the lubrication system of internal combustion engines
GB677664A (en) * 1949-04-20 1952-08-20 Daimler Benz Ag Improvements in cooling jacket construction for liquid-cooled internal combustion engines
US3150651A (en) * 1961-02-09 1964-09-29 Auto Union Gmbh Arrangement for heating the lubricating oil of internal combustion engines
DE3120507A1 (en) * 1980-05-23 1982-04-22 Nissan Motor Co., Ltd., Yokohama, Kanagawa Rapid warm-up device for an internal combustion engine

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5219531B2 (en) * 1972-12-15 1977-05-28

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB327791A (en) * 1929-02-01 1930-04-17 Sydney Slater Guy Improvements in or relating to the lubrication system of internal combustion engines
GB677664A (en) * 1949-04-20 1952-08-20 Daimler Benz Ag Improvements in cooling jacket construction for liquid-cooled internal combustion engines
US3150651A (en) * 1961-02-09 1964-09-29 Auto Union Gmbh Arrangement for heating the lubricating oil of internal combustion engines
DE3120507A1 (en) * 1980-05-23 1982-04-22 Nissan Motor Co., Ltd., Yokohama, Kanagawa Rapid warm-up device for an internal combustion engine

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2727727A1 (en) * 1994-12-02 1996-06-07 Renault Crank case bearings for IC engines
KR100552205B1 (en) * 2002-10-22 2006-02-13 현대자동차주식회사 Oil heating device
WO2010106179A1 (en) 2009-03-19 2010-09-23 Ino8 Pty Ltd Method and apparatus for oiling rotating or oscillating components
EP2409005B1 (en) * 2009-03-19 2018-08-15 Ino8 Pty Ltd Method and apparatus for oiling rotating or oscillating components
RU2472012C1 (en) * 2011-09-19 2013-01-10 Закрытое акционерное общество "Научно-исследовательский и конструкторский институт центробежных и роторных компрессоров им. В.Б. Шнеппа" Pre-startup oil heating device
RU188973U1 (en) * 2018-11-19 2019-04-30 ФЕДЕРАЛЬНОЕ ГОСУДАРСТВЕННОЕ КАЗЕННОЕ ВОЕННОЕ ОБРАЗОВАТЕЛЬНОЕ УЧРЕЖДЕНИЕ ВЫСШЕГО ОБРАЗОВАНИЯ Военная академия Ракетных войск стратегического назначения имени Петра Великого МИНИСТЕРСТВА ОБОРОНЫ РОССИЙСКОЙ ФЕДЕРАЦИИ DEVICE OF EXTRA PRE-AIR WARMING UP OF MOTOR OIL OF INTERNAL COMBUSTION ENGINE IN LOW TEMPERATURE CONDITIONS

Also Published As

Publication number Publication date
ES8602199A1 (en) 1985-11-01
ATE28762T1 (en) 1987-08-15
FR2544793A1 (en) 1984-10-26
JPH0226708U (en) 1990-02-21
DE3465209D1 (en) 1987-09-10
ES531757A0 (en) 1985-11-01
JPS59206608A (en) 1984-11-22
FR2544793B1 (en) 1987-05-15
EP0123620B1 (en) 1987-08-05

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