EP2484879A2 - Drive train of an automobile comprising a water pipe built into a strut - Google Patents

Drive train of an automobile comprising a water pipe built into a strut Download PDF

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Publication number
EP2484879A2
EP2484879A2 EP12305137A EP12305137A EP2484879A2 EP 2484879 A2 EP2484879 A2 EP 2484879A2 EP 12305137 A EP12305137 A EP 12305137A EP 12305137 A EP12305137 A EP 12305137A EP 2484879 A2 EP2484879 A2 EP 2484879A2
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EP
European Patent Office
Prior art keywords
stand
powertrain
conduit
face
duct
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Withdrawn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
EP12305137A
Other languages
German (de)
French (fr)
Other versions
EP2484879A3 (en
Inventor
Jean-Louis Gratian
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Renault SAS
Original Assignee
Renault SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Renault SAS filed Critical Renault SAS
Publication of EP2484879A2 publication Critical patent/EP2484879A2/en
Publication of EP2484879A3 publication Critical patent/EP2484879A3/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Withdrawn legal-status Critical Current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
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/04—Arrangements of liquid pipes or hoses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B67/00—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for
    • F02B67/10—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of charging or scavenging apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F7/00—Casings, e.g. crankcases or frames
    • F02F7/0065—Shape of casings for other machine parts and purposes, e.g. utilisation purposes, safety
    • F02F7/0068—Adaptations for other accessories
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/02—EGR systems specially adapted for supercharged engines
    • F02M26/04—EGR systems specially adapted for supercharged engines with a single turbocharger
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
    • F02M26/29—Constructional details of the coolers, e.g. pipes, plates, ribs, insulation or materials
    • F02M26/32—Liquid-cooled heat exchangers

Definitions

  • the invention relates to a power train of a motor vehicle
  • the invention more particularly relates to a power unit of a motor vehicle comprising at least one transverse motor which is coupled to a transmission, including an engine block comprises a first face having at least one output of a cooling circuit and a second opposite face which carries at least one engine support, an exhaust gas recirculation device, at least one turbocharger, and at least one bearing bearing a transmission shaft, said power unit comprising at least one stand, attached to the engine block , which receives the end of a bent duct of the at least one turbocharger, and said power unit comprising at least one water circulation duct which is connected to the outlet of the first face and which feeds at least one member the powertrain, including exhaust gas recirculation device.
  • the invention relates to a powertrain in which at least one water circulation conduit which is connected to the output of the first face and which supplies at least one member of the power unit propeller vertically bypasses the engine block, preferably under said engine block.
  • the invention proposes to take advantage of a pre-existing stand, attached to the engine block, which receives the end of a bent duct of the at least one turbocharger, to ensure a stable attachment of the water circulation duct.
  • the invention proposes a powertrain of the type described above, characterized in that at least one intermediate portion of the duct is carried by the stand.
  • FIG. 1 a front portion 10 of a motor vehicle comprising in a motor compartment 12 a powertrain 14.
  • the powertrain 14 comprises at least one transverse motor 16 which is coupled to a transmission (not shown), a motor block 18 comprises a first face 20 having at least one outlet 22, 24 of a cooling circuit and a second face 26 opposite, turned to an apron 28 of the vehicle, which carries at least one support 30 of the engine, a device 32 for recirculating the exhaust gas, at least one turbocharger 34, and at least one bearing 36 bearing a shaft (not shown).
  • the powertrain 14 comprises at least one stand 38, fixed to the engine block 18, which receives the end of an angled duct 40 of the at least one turbocharger 34, and said powertrain 14 comprises at least one duct 42, 44 water circulation which is connected to the outlet 22, 24 of the first face 20 and which supplies at least one member of the powertrain, including the device 32 for recirculating the exhaust gas.
  • a solution consists in that at least one water circulation duct 42, 44 which is connected to the outlet 22, 24 of the first face 20 and which supplies at least one member of the powertrain unit bypasses vertically the engine block 18, preferably under said engine block 18, for example through below.
  • the invention proposes to take advantage of the pre-existing stand 38, fixed to the engine block 18, to ensure a stable attachment of the conduit 42, 44 for circulating water.
  • the stand essentially comprises a body 50 which is fixed on the engine block via a plate 70 pierced with holes 72
  • the invention proposes a powertrain 14 of the type described above, characterized in that at least one intermediate portion 46 of the duct 42, 44 is carried by the stand 38.
  • the stand 38 comprises at least one tubular portion 46 which delimits at least one corresponding portion called "integrated" of the duct 42.
  • the stand 38 comprises at least one bore 48, integral with a body 50 of the stand 38 and opening outwardly of said body 50, which is obtained during the molding of the stand 38 by a foundry method, and at least one end of which receives a nozzle 52 of stainless steel, which is intended to receive by fitting a corresponding portion 54 called “flexible" of the conduit 42.
  • the powertrain 14 comprises two conduits 42, 44 of water circulation duct which are each connected to an outlet 22, 24 of the first face 20 and which supply the member 32 of the power train.
  • the body 50 of the stand 38 has substantially the shape of an "L" in a branch of which is arranged at least a first bore 48, and in the other branch of which are arranged at least second and third bores 56, 58 parallel, the first bore 48 opening internally into the second bore 56 to form an integrated portion 46 of the duct 42 which is bent, the third bore 58 forming a straight integral portion 47 of the duct 44.
  • the powertrain member on which are connected the conduits 42, 44 consists of the device 32 for recirculating the exhaust gas, but it will be understood that this provision is not limiting of the invention and that it could be another organ or accessory requiring cooling.
  • first rigid portion 41, 43 of each duct 42, 44 extends at least partially under the engine block 18. This configuration makes it possible to use only a small space in the engine compartment 12.
  • the stand can support water circulation ducts which may have substantially different shapes, for example, N-shaped (other than the "L") to fix elements, to take into account different environmental constraints of the engine.
  • the invention therefore provides an innovative powertrain whose water pipes occupy a small space and are also firmly maintained by a pre-existing crutch.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust-Gas Circulating Devices (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Supercharger (AREA)

Abstract

The powertrain has a transversal engine coupled to a transmission and provided with an engine block. A support foot (38) is fixed to the block and receives an end of a bent conduit of a turbocompressor. Water circulation conduits (42, 44) are connected to cooling circuit outlets in a surface of the block. The circulation conduits supply water to an exhaust gas recirculation device. The foot supports an intermediate tubular part (46) of the circulation conduits. Each circulation conduit has a flexible part extended between a stainless steel spout (52) of the foot and the recirculation device.

Description

L'invention concerne un groupe motopropulseur de véhicule automobileThe invention relates to a power train of a motor vehicle

L'invention concerne plus particulièrement un groupe motopropulseur de véhicule automobile comportant au moins un moteur transversal qui est accouplé à une transmission, dont un bloc moteur comporte une première face comportant au moins une sortie d'un circuit de refroidissement et une seconde face opposée qui porte au moins un support du moteur, un dispositif de recirculation des gaz d'échappement, au moins un turbocompresseur, et au moins un palier porteur d'un arbre de la transmission, ledit groupe motopropulseur comportant au moins une béquille, fixée au bloc moteur, qui reçoit l'extrémité d'un conduit coudé de l'au moins un turbocompresseur, et ledit groupe motopropulseur comportant au moins un conduit de circulation d'eau qui est relié à la sortie de la première face et qui alimente au moins un organe du groupe moto-propulseur, notamment dispositif de recirculation des gaz d'échappement.The invention more particularly relates to a power unit of a motor vehicle comprising at least one transverse motor which is coupled to a transmission, including an engine block comprises a first face having at least one output of a cooling circuit and a second opposite face which carries at least one engine support, an exhaust gas recirculation device, at least one turbocharger, and at least one bearing bearing a transmission shaft, said power unit comprising at least one stand, attached to the engine block , which receives the end of a bent duct of the at least one turbocharger, and said power unit comprising at least one water circulation duct which is connected to the outlet of the first face and which feeds at least one member the powertrain, including exhaust gas recirculation device.

L'espace disponible dans le compartiment moteur des véhicules automobiles actuels est de plus en plus restreint du fait du montage de nombreux accessoires et équipements, notamment des équipements destinés à accroître les performances du moteur.The space available in the engine compartment of current motor vehicles is increasingly restricted by the mounting of many accessories and equipment, including equipment to increase the performance of the engine.

Dans cette configuration, l'espace dévolu à certains éléments conventionnels, par exemple les conduits de circulation d'eau, se trouve de plus en plus restreint.In this configuration, the space devoted to certain conventional elements, for example the water circulation ducts, is increasingly restricted.

Ces éléments ne présentant pas de fonctionnalité qui nécessite leur implantation au plus près du bloc moteur, il est possible de tirer parti de leur relative simplicité pour organiser leur implantation de manière optimale.These elements having no functionality that requires their implementation closer to the engine block, it is possible to take advantage of their relative simplicity to organize their implementation optimally.

Ainsi, l'invention concerne un groupe motopropulseur dans lequel au moins un conduit de circulation d'eau qui est relié à la sortie de la première face et qui alimente au moins un organe du groupe moto-propulseur contourne verticalement le bloc moteur, de préférence sous ledit bloc moteur.Thus, the invention relates to a powertrain in which at least one water circulation conduit which is connected to the output of the first face and which supplies at least one member of the power unit propeller vertically bypasses the engine block, preferably under said engine block.

L'inconvénient de cette conception est que du fait de la grande longueur du conduit, celui-ci est soumis à des mouvements d'amplitude élevée. Il doit donc être fixé de manière particulièrement rigoureuse de manière à éviter toute interférence avec un autre organe.The disadvantage of this design is that because of the long length of the conduit, it is subjected to high amplitude movements. It must therefore be fixed in a particularly rigorous manner so as to avoid any interference with another organ.

L'invention propose de tirer parti d'une béquille préexistante, fixée au bloc moteur, qui reçoit l'extrémité d'un conduit coudé de l'au moins un turbocompresseur, pour assurer une fixation stable du conduit de circulation d'eau.The invention proposes to take advantage of a pre-existing stand, attached to the engine block, which receives the end of a bent duct of the at least one turbocharger, to ensure a stable attachment of the water circulation duct.

Dans ce but, l'invention propose un groupe motopropulseur du type décrit précédemment, caractérisé en ce qu'au moins une partie intermédiaire du conduit est porté par la béquille.For this purpose, the invention proposes a powertrain of the type described above, characterized in that at least one intermediate portion of the duct is carried by the stand.

Selon d'autres caractéristiques de l'invention :

  • la béquille comporte au moins une partie tubulaire qui délimite au moins une partie correspondante dite "intégrée" du conduit,
  • la béquille comporte au moins au moins un alésage, venu de matière avec un corps de la béquille et débouchant à l'extérieur dudit corps, qui est obtenu lors du moulage de la béquille par un procédé de fonderie, et dont au moins une extrémité reçoit une buse en acier inoxydable, qui est destinée à recevoir par emboîtement une partie correspondante dite "souple" du conduit,
  • chaque conduit comporte :
    • ξ une première partie rigide, qui s'étend entre la sortie de la première face et la béquille,
    • ξ une deuxième partie intégrée, qui s'étend dans la béquille,
    • ξ une troisième partie souple, qui s'étend entre la buse de la béquille et l'organe du groupe moto-propulseur,
  • le groupe motopropulseur comporte deux conduits de conduit de circulation d'eau qui sont reliés chacun à une sortie de la première face et qui alimentent l'organe du groupe moto-propulseur,
  • le corps de béquille présente sensiblement la forme d'un "L" dans une branche duquel est agencé au moins un premier alésage, et dans l'autre branche duquel sont agencés au moins des deuxième et troisième alésages parallèles, le premier alésage débouchant intérieurement dans le deuxième alésage pour former une partie intégrée de conduit coudé,
  • l'organe du groupe motopropulseur comporte le dispositif de recirculation des gaz d'échappement,
  • la première partie rigide de chaque conduit s'étend au moins en partie sous le bloc moteur.
According to other features of the invention:
  • the stand comprises at least one tubular part which delimits at least one corresponding part called "integrated" part of the duct,
  • the stand comprises at least one bore, integral with a body of the stand and opening outwardly of said body, which is obtained during molding of the stand by a casting process, and at least one end receives a stainless steel nozzle, which is intended to receive by fitting a corresponding part called "flexible" conduit,
  • each conduit comprises:
    • a first rigid portion, which extends between the exit of the first face and the crutch,
    • ξ a second integrated part, which extends in the crutch,
    • a third flexible part, which extends between the nozzle of the stand and the member of the power train,
  • the powertrain comprises two water circulation ducts which are each connected to an outlet of the first face and which feed the member of the powertrain,
  • the stand body has substantially the shape of an "L" in a branch of which is arranged at least a first bore, and in the other branch of which are arranged at least second and third parallel bores, the first bore opening internally in the second bore to form an integrated portion of angled duct,
  • the powertrain member comprises the exhaust gas recirculation device,
  • the first rigid part of each duct extends at least partly under the engine block.

D'autres caractéristiques et avantages de l'invention apparaîtront à la lecture de la description détaillée qui suit pour la compréhension de laquelle on se reportera aux dessins annexés dans lesquels :

  • la figure 1 est une vue schématique en coupe d'un groupe motopropulseur selon l'invention ;
  • la figure 2 est une vue en perspective côté arrière du groupe motopropulseur selon l'invention ;
  • la figure 3 est une vue de détail en perspective de la béquille mis en oeuvre dans le groupe motopropulseur selon l'invention ;
  • la figure 4 est une vue de détail en coupe de la béquille mis en oeuvre dans le groupe motopropulseur selon l'invention.
Other features and advantages of the invention will appear on reading the detailed description which follows for the understanding of which reference will be made to the appended drawings in which:
  • the figure 1 is a schematic sectional view of a powertrain according to the invention;
  • the figure 2 is a rear perspective view of the powertrain according to the invention;
  • the figure 3 is a detailed perspective view of the stand used in the powertrain according to the invention;
  • the figure 4 is a detailed sectional view of the stand used in the powertrain according to the invention.

Dans la description qui va suivre, des chiffres de référence identiques désignent des pièces identiques ou ayant des fonctions similaires.In the following description, like reference numerals designate like parts or having similar functions.

On a représenté à la figure 1 une partie avant 10 d'un véhicule automobile comportant dans un compartiment moteur 12 un groupe motopropulseur 14. Le groupe motopropulseur 14 comporte au moins un moteur transversal 16 qui est accouplé à une transmission (non représentée), dont un bloc moteur 18 comporte une première face 20 comportant au moins une sortie 22, 24 d'un circuit de refroidissement et une seconde face 26 opposée, tournée vers un tablier 28 du véhicule, qui porte au moins un support 30 du moteur, un dispositif 32 de recirculation des gaz d'échappement, au moins un turbocompresseur 34, et au moins un palier 36 porteur d'un arbre (non représenté).We have shown figure 1 a front portion 10 of a motor vehicle comprising in a motor compartment 12 a powertrain 14. The powertrain 14 comprises at least one transverse motor 16 which is coupled to a transmission (not shown), a motor block 18 comprises a first face 20 having at least one outlet 22, 24 of a cooling circuit and a second face 26 opposite, turned to an apron 28 of the vehicle, which carries at least one support 30 of the engine, a device 32 for recirculating the exhaust gas, at least one turbocharger 34, and at least one bearing 36 bearing a shaft (not shown).

Le groupe motopropulseur 14 comporte au moins une béquille 38, fixée au bloc moteur 18, qui reçoit l'extrémité d'un conduit coudé 40 de l'au moins un turbocompresseur 34, et ledit groupe motopropulseur 14 comporte au moins un conduit 42, 44 de circulation d'eau qui est relié à la sortie 22, 24 de la première face 20 et qui alimente au moins un organe du groupe moto-propulseur, notamment le dispositif 32 de recirculation des gaz d'échappement.The powertrain 14 comprises at least one stand 38, fixed to the engine block 18, which receives the end of an angled duct 40 of the at least one turbocharger 34, and said powertrain 14 comprises at least one duct 42, 44 water circulation which is connected to the outlet 22, 24 of the first face 20 and which supplies at least one member of the powertrain, including the device 32 for recirculating the exhaust gas.

Dans certaines configurations de véhicule, il peut se produire que l'espace dévolu au sein du compartiment moteur 12 pour les conduits de circulation d'eau soit particulièrement restreint.In certain vehicle configurations, it may happen that the space devolved within the engine compartment 12 for the water circulation ducts is particularly restricted.

Dans cette configuration, une solution consiste en ce qu'au moins un conduit 42, 44 de circulation d'eau qui est relié à la sortie 22, 24 de la première face 20 et qui alimente au moins un organe du groupe moto-propulseur contourne verticalement le bloc moteur 18, de préférence sous ledit bloc moteur 18, en passant par exemple en dessous.In this configuration, a solution consists in that at least one water circulation duct 42, 44 which is connected to the outlet 22, 24 of the first face 20 and which supplies at least one member of the powertrain unit bypasses vertically the engine block 18, preferably under said engine block 18, for example through below.

L'inconvénient de cette conception est que du fait de la grande longueur du conduit 42, 44, celui-ci est soumis à des mouvements d'amplitude élevée. Il doit donc être fixé de manière particulièrement rigoureuse de façon à éviter toute interférence avec un autre organe.The disadvantage of this design is that due to the long length of the duct 42, 44, it is subjected to high amplitude movements. It must therefore be fixed in a particularly rigorous manner so as to avoid any interference with another organ.

L'invention propose de tirer parti de la béquille préexistante 38, fixée au bloc moteur 18, pour assurer une fixation stable du conduit 42, 44 de circulation d'eau.The invention proposes to take advantage of the pre-existing stand 38, fixed to the engine block 18, to ensure a stable attachment of the conduit 42, 44 for circulating water.

La béquille comporte pour l'essentiel un corps 50 qui est fixé sur le bloc moteur par l'intermédiaire d'une platine 70 percée de perçages 72The stand essentially comprises a body 50 which is fixed on the engine block via a plate 70 pierced with holes 72

Dans ce but, l'invention propose un groupe motopropulseur 14 du type décrit précédemment, caractérisé en ce qu'au moins une partie intermédiaire 46 du conduit 42, 44 est porté par la béquille 38.For this purpose, the invention proposes a powertrain 14 of the type described above, characterized in that at least one intermediate portion 46 of the duct 42, 44 is carried by the stand 38.

Plus particulièrement, comme l'illustre la figure 4, la béquille 38 comporte au moins une partie tubulaire 46 qui délimite au moins une partie correspondante dite "intégrée" du conduit 42.In particular, as illustrated by figure 4 , the stand 38 comprises at least one tubular portion 46 which delimits at least one corresponding portion called "integrated" of the duct 42.

Plus particulièrement, pour former cette partie tubulaire 46, la béquille 38 comporte au moins au moins un alésage 48, venu de matière avec un corps 50 de la béquille 38 et débouchant à l'extérieur dudit corps 50, qui est obtenu lors du moulage de la béquille 38 par un procédé de fonderie, et dont au moins une extrémité reçoit une buse 52 en acier inoxydable, qui est destinée à recevoir par emboîtement une partie correspondante 54 dite "souple" du conduit 42.More particularly, to form this tubular portion 46, the stand 38 comprises at least one bore 48, integral with a body 50 of the stand 38 and opening outwardly of said body 50, which is obtained during the molding of the stand 38 by a foundry method, and at least one end of which receives a nozzle 52 of stainless steel, which is intended to receive by fitting a corresponding portion 54 called "flexible" of the conduit 42.

Ainsi, si l'on considère le conduit 42, 44 dans son intégralité depuis son branchement sur la sortie 22, 24 de la première face 20 jusqu'à son branchement sur l'organe 32, chaque conduit 42, 44 comporte :

  • une première partie rigide 41, 43 qui s'étend entre la sortie 22, 24 de la première face et la béquille,
  • une deuxième partie intégrée 46, 47 qui s'étend dans la béquille 38,
  • une troisième partie souple 54, 55 qui s'étend entre la buse associée 52, 53 de la béquille 38 et l'organe 32 du groupe moto-propulseur 14.
Thus, considering the duct 42, 44 in its entirety since its connection to the outlet 22, 24 of the first face 20 to its connection to the member 32, each duct 42, 44 comprises:
  • a first rigid portion 41, 43 which extends between the outlet 22, 24 of the first face and the stand,
  • a second integrated part 46, 47 which extends into the stand 38,
  • a third flexible portion 54, 55 which extends between the associated nozzle 52, 53 of the stand 38 and the member 32 of the power unit 14.

Il sera compris que, dans le mode de réalisation préféré de l'invention, le groupe motopropulseur 14 comporte deux conduits 42, 44 de conduit de circulation d'eau qui sont reliés chacun à une sortie 22, 24 de la première face 20 et qui alimentent l'organe 32 du groupe moto-propulseur.It will be understood that, in the preferred embodiment of the invention, the powertrain 14 comprises two conduits 42, 44 of water circulation duct which are each connected to an outlet 22, 24 of the first face 20 and which supply the member 32 of the power train.

Comme l'illustrent les figures 3 et 4, le corps 50 de la béquille 38 présente sensiblement la forme d'un "L" dans une branche duquel est agencé au moins un premier alésage 48, et dans l'autre branche duquel sont agencés au moins des deuxième et troisième alésages 56, 58 parallèles, le premier alésage 48 débouchant intérieurement dans le deuxième alésage 56 pour former une partie intégrée 46 du conduit 42 qui est coudée, le troisième alésage 58 formant une partie intégrée 47 rectiligne du conduit 44 .As illustrated by figures 3 and 4 , the body 50 of the stand 38 has substantially the shape of an "L" in a branch of which is arranged at least a first bore 48, and in the other branch of which are arranged at least second and third bores 56, 58 parallel, the first bore 48 opening internally into the second bore 56 to form an integrated portion 46 of the duct 42 which is bent, the third bore 58 forming a straight integral portion 47 of the duct 44.

Dans la configuration qui a été représentée à la figure 2, l'organe du groupe motopropulseur sur lequel sont branchés les conduits 42, 44 est constitué du dispositif 32 de recirculation des gaz d'échappement, mais il sera compris que cette disposition n'est pas limitative de l'invention et qu'il pourrait s'agir d'un autre organe ou accessoire nécessitant un refroidissement.In the configuration that was represented at the figure 2 , the powertrain member on which are connected the conduits 42, 44 consists of the device 32 for recirculating the exhaust gas, but it will be understood that this provision is not limiting of the invention and that it could be another organ or accessory requiring cooling.

Enfin, avantageusement, la première partie rigide 41, 43 de chaque conduit 42, 44 s'étend au moins en partie sous le bloc moteur 18. Cette configuration permet de n'employer qu'un espace restreint dans le compartiment moteur 12.Finally, advantageously, the first rigid portion 41, 43 of each duct 42, 44 extends at least partially under the engine block 18. This configuration makes it possible to use only a small space in the engine compartment 12.

En variante à la description ci-dessus à titre d'exemple, la béquille peut supporter des conduits de circulation d'eau qui peuvent avoir des formes sensiblement différentes, par exemple, en forme N (autre que le « L ») pour fixer des éléments, pour prendre en compte différentes contraintes d'environnement du moteur.As an alternative to the above description by way of example, the stand can support water circulation ducts which may have substantially different shapes, for example, N-shaped (other than the "L") to fix elements, to take into account different environmental constraints of the engine.

L'invention propose donc un groupe motopropulseur innovant dont les conduits d'eau occupent un espace restreint et sont par ailleurs fermement maintenus par une béquille préexistante.The invention therefore provides an innovative powertrain whose water pipes occupy a small space and are also firmly maintained by a pre-existing crutch.

Claims (8)

Groupe (14) motopropulseur de véhicule automobile comportant au moins un moteur transversal (16)qui est accouplé à une transmission, dont un bloc moteur (18) comporte une première face (20) comportant au moins une sortie (22, 24) d'un circuit de refroidissement et une seconde face (26) opposée qui porte au moins un support (30) du moteur, un dispositif (32) de recirculation des gaz d'échappement, au moins un turbocompresseur (34), et au moins un palier (36) porteur d'un arbre de la transmission, ledit groupe motopropulseur comportant au moins une béquille (38), fixée au bloc moteur (18), qui reçoit l'extrémité d'un conduit (40) coudé de l'au moins un turbocompresseur (34), et ledit groupe motopropulseur (14) comportant au moins un conduit (42, 44) de circulation d'eau qui est relié à la sortie (22, 24) de la première face et qui alimente au moins un organe du groupe motopropulseur, notamment le dispositif (32) de recirculation des gaz d'échappement.
caractérisé en ce qu'au moins une partie intermédiaire (46) du conduit (42, 44) est portée par la béquille (38).Motor vehicle power unit (14) comprising at least one transverse motor (16) which is coupled to a transmission, of which an engine block (18) has a first face (20) having at least one output (22, 24) of a cooling circuit and an opposite second face (26) which carries at least one engine support (30), an exhaust gas recirculation device (32), at least one turbocharger (34), and at least one bearing (36) carrying a shaft of the transmission, said powertrain comprising at least one stand (38), fixed to the engine block (18), which receives the end of a conduit (40) bent at least a turbocharger (34), and said power plant (14) having at least one water circulation duct (42, 44) which is connected to the outlet (22, 24) of the first face and which supplies at least one member the power train, in particular the exhaust gas recirculation device (32).
characterized in that at least one intermediate portion (46) of the conduit (42, 44) is carried by the stand (38). Groupe motopropulseur (14) selon la revendication précédente, caractérisé en ce que la béquille (38) comporte au moins une partie tubulaire (46) qui délimite au moins une partie correspondante dite "intégrée" du conduit (42).Powertrain (14) according to the preceding claim, characterized in that the stand (38) comprises at least one tubular portion (46) defining at least one corresponding part called "integrated" of the conduit (42). Groupe motopropulseur (14) selon la revendication précédente, caractérisé en ce que la béquille (38) comporte au moins au moins un alésage (48), venu de matière avec un corps (50) de la béquille (38) et débouchant à l'extérieur dudit corps (50), qui est obtenu lors du moulage de la béquille (38) par un procédé de fonderie, et dont au moins une extrémité reçoit une buse (52) en acier inoxydable, qui est destinée à recevoir par emboîtement une partie correspondante (54) dite "souple" du conduit (42).Powertrain (14) according to the preceding claim, characterized in that the stand (38) comprises at least one bore (48), integral with a body (50) of the stand (38) and opening to the outside of said body (50), which is obtained during molding of the stand (38) by a casting process, and at least one end of which receives a nozzle (52) of stainless steel, which is intended to receive by interlocking a part corresponding (54) said "flexible" conduit (42). Groupe motopropulseur (14) selon la revendication précédente, caractérisé en ce chaque conduit (42, 44) comporte : - une première partie rigide (41, 43), qui s'étend entre la sortie (22, 24) de la première face et la béquille (38), - une deuxième partie intégrée (46, 47), qui s'étend dans la béquille (38), - une troisième partie souple (54, 55), qui s'étend entre la buse (52, 53) de la béquille (38) et l'organe (32) du groupe moto-propulseur (14). Powertrain (14) according to the preceding claim, characterized in that each duct (42, 44) comprises: a first rigid portion (41, 43) extending between the outlet (22, 24) of the first face and the stand (38), a second integrated part (46, 47) extending in the stand (38), - A third flexible portion (54, 55), which extends between the nozzle (52, 53) of the stand (38) and the member (32) of the power unit (14). Groupe motopropulseur (14) selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comporte deux conduits (42, 44) de conduit de circulation d'eau qui sont reliés chacun à une sortie (22, 24) de la première face (20) et qui alimentent l'organe (32) du groupe moto-propulseur (14).Power train (14) according to any one of the preceding claims, characterized in that it comprises two ducts (42, 44) of water circulation duct which are each connected to an outlet (22, 24) of the first face (20) and which feed the member (32) of the power unit (14). Groupe motopropulseur (14) selon la revendication précédente, caractérisé en ce que le corps (50) de la béquille (38) présente sensiblement la forme d'un "L" dans une branche duquel est agencé au moins un premier alésage (48), et dans l'autre branche duquel sont agencés au moins des deuxième et troisième alésages (56, 58) parallèles, le premier alésage (48) débouchant intérieurement dans le deuxième alésage (56) pour former une partie intégrée (46) de conduit coudé.Powertrain (14) according to the preceding claim, characterized in that the body (50) of the stand (38) has substantially the shape of an "L" in a branch of which is arranged at least a first bore (48), and in the other branch of which are arranged at least second and third parallel bores (56, 58), the first bore (48) opening internally in the second bore (56) to form an integrated portion (46) of bent conduit. Groupe motopropulseur (14) selon l'une des revendications précédentes, caractérisé en ce que l'organe du groupe motopropulseur comporte le dispositif (32) de recirculation des gaz d'échappement.Power train (14) according to one of the preceding claims, characterized in that the powertrain member comprises the device (32) for recirculating the exhaust gas. Groupe motopropulseur (14) selon l'une quelconque des revendications 4 à 7, caractérisé en ce que la première partie (41, 43) rigide de chaque conduit (42, 44) s'étend au moins en partie sous le bloc moteur (18).Power train (14) according to any one of claims 4 to 7, characterized in that the first portion (41, 43) rigid of each duct (42, 44) extends at least partially under the engine block (18 ).
EP12305137.7A 2011-02-08 2012-02-08 Drive train of an automobile comprising a water pipe built into a strut Withdrawn EP2484879A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1150976A FR2971300B1 (en) 2011-02-08 2011-02-08 MOTOR VEHICLE POWERTRAIN COMPRISING A WATER CONDUIT INTEGRATED WITH A STAND

Publications (2)

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EP2484879A2 true EP2484879A2 (en) 2012-08-08
EP2484879A3 EP2484879A3 (en) 2018-01-03

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EP12305137.7A Withdrawn EP2484879A3 (en) 2011-02-08 2012-02-08 Drive train of an automobile comprising a water pipe built into a strut

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EP (1) EP2484879A3 (en)
FR (1) FR2971300B1 (en)

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Publication number Priority date Publication date Assignee Title
CN107313831A (en) * 2017-08-25 2017-11-03 扬州市邗江开元滤清器厂 A kind of oil filter seat and its production technology that metal tube is buried in
CN107313831B (en) * 2017-08-25 2024-04-02 扬州市邗江开元滤清器厂 Oil filter seat adopting embedded metal pipe and production process thereof

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FR2971300A1 (en) 2012-08-10
EP2484879A3 (en) 2018-01-03

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