EP3500746A1 - Outer conduit of an outlet of a volute of a heat transfer pump of a heat engine of a vehicle - Google Patents

Outer conduit of an outlet of a volute of a heat transfer pump of a heat engine of a vehicle

Info

Publication number
EP3500746A1
EP3500746A1 EP17754766.8A EP17754766A EP3500746A1 EP 3500746 A1 EP3500746 A1 EP 3500746A1 EP 17754766 A EP17754766 A EP 17754766A EP 3500746 A1 EP3500746 A1 EP 3500746A1
Authority
EP
European Patent Office
Prior art keywords
crankcase
transfer fluid
heat transfer
component
channel
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.)
Granted
Application number
EP17754766.8A
Other languages
German (de)
French (fr)
Other versions
EP3500746B1 (en
Inventor
Michel Bartalini
Xavier Decomble
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
Nissan Motor Co Ltd
Original Assignee
Renault SAS
Nissan Motor Co Ltd
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, Nissan Motor Co Ltd filed Critical Renault SAS
Publication of EP3500746A1 publication Critical patent/EP3500746A1/en
Application granted granted Critical
Publication of EP3500746B1 publication Critical patent/EP3500746B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • F01P5/00—Pumping cooling-air or liquid coolants
    • F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
    • 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
    • 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
    • F01P3/20—Cooling circuits not specific to a single part of engine or machine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F1/26—Cylinder heads having cooling means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F1/26—Cylinder heads having cooling means
    • F02F1/36—Cylinder heads having cooling means for liquid cooling
    • F02F1/40—Cylinder heads having cooling means for liquid cooling cylinder heads with means for directing, guiding, or distributing liquid stream 
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P3/00—Liquid cooling
    • F01P3/02—Arrangements for cooling cylinders or cylinder heads
    • F01P2003/027—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
    • F01P7/00—Controlling of coolant flow
    • F01P7/14—Controlling of coolant flow the coolant being liquid
    • F01P2007/143—Controlling of coolant flow the coolant being liquid using restrictions
    • 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
    • F01P2007/146—Controlling of coolant flow the coolant being liquid using valves
    • 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
    • F01P2060/04—Lubricant cooler
    • 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
    • F01P2060/00—Cooling circuits using auxiliaries
    • F01P2060/16—Outlet manifold
    • 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
    • F01P5/00—Pumping cooling-air or liquid coolants
    • F01P5/02—Pumping cooling-air; Arrangements of cooling-air pumps, e.g. fans or blowers
    • F01P5/06—Guiding or ducting air to, or from, ducted fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/02—Cylinders; Cylinder heads  having cooling means
    • F02F1/10—Cylinders; Cylinder heads  having cooling means for liquid cooling
    • F02F1/14—Cylinders with means for directing, guiding or distributing liquid stream

Definitions

  • the present invention relates to an external duct of an outlet of a volute of a heat transfer fluid pump of a heat engine of a vehicle.
  • FIG. 1 shows in perspective a sectional view of a portion of a crankcase comprising a coolant pump and an outer conduit according to the embodiment of the invention
  • FIG. 2 represents a sectional view of a portion of the crankcase comprising the coolant pump and the external conduit according to the embodiment of the invention
  • This mounting cavity 14 also comprises an outlet 4 provided with an orifice of a volute 3 of a heat transfer fluid pump 2 for circulating this fluid under pressure in a cooling circuit of this engine.
  • This outlet 4 is an orifice 4 communicating with the cavity of the volute 3 of the pump 2.
  • a pump 2 is preferably arranged in a housing defined in the engine and in particular in a housing defined in the crankcase 8 and this , so as to reduce the size of the engine.
  • the volute 3 also called “high-pressure chamber” of the pump 2 is intended to receive a blade 17, or a turbine, contributing to the circulation of the fluid under pressure in the cooling circuit.
  • This blade 17 is mounted on one end 16 of a pump shaft passing on either side of a pump body (not shown).
  • This volute 3 is formed in the crankcase 8 and comprises in a intermediate portion, arranged for example substantially in line with the pump shaft a feed inlet (not shown) provided with an orifice for allowing the supply of the pump 2 of the engine heat transfer fluid.
  • this cylinder block 8 also comprises an external duct 1 of the outlet 4 of the volute 3 of the pump 2 which is fixed on the outer face 9 of this casing 8.
  • This external duct 1 can be a removable part which is attached to the outer face 9.
  • the outer conduit 1 comprises first and second components 5a, 5b which can be two separate parts which are assembled / connected to each other sealingly. In an alternative, these first and second components 5a, 5b may together form a single piece.
  • This external duct 1 is arranged in the mounting cavity 14 by being mechanically and sealingly connected to the outer face 9 of the cylinder block 8. This mechanical connection is made from a cooperation between fastening elements including elements
  • the connecting zone 10 is preferably defined at a peripheral edge of this mounting cavity 14.
  • the first component 5a of this external duct 1 is capable of guiding the heat-transfer fluid from the outlet 4 of the volute 3 of the pump 2 to the inlet 6 of the internal circuit 7 comprising the internal supply duct 15 formed by at least a cooling chamber. More precisely, the first component 5a forms, with the external face 9 of the casing 8 and in particular with the mounting cavity 14, the second channel 1 1b for circulating the heat-transfer fluid towards this inlet 6 of the internal circuit 7.
  • the first component 5a of this external conduit 1 comprises a passage zone 12 of the heat transfer fluid of the second channel 1 1b to the first channel 1 1 a.
  • This passage zone 12 is preferably comprised of a part of this first component 5a that can be defined equidistant from the ends 24a, 24b of this component 5a visible in FIG. 2.
  • This passage zone 12 is provided by openings 13 visible in FIG. a cross-section of the passage zone 12 of Figure 3 which is essentially in the form of an inverted "U".
  • the passage zone 12 comprises side walls 23 which each comprise an opening 13. These openings 13 participate in the passage of the heat transfer fluid from the second channel 1 1b to the first channel 1 1 a.
  • this crankcase 8 when the pump 2 circulates the heat transfer fluid in the cooling circuit, the fluid is then discharged from the pump 2 via the outlet 4 of the volute 3 to circulate under pressure in the second channel 1 1 b in the direction of the arrows referenced 20. While circulating in this second channel 1 1 b, this fluid is then led to both the internal circuit 7 defined in the crankcase 8 via the inlet 6, and to at least one device of the cooling circuit by passing through the passage zone 12, in particular the openings 13 defined in this zone 12 in the direction of the arrows referenced 21.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Abstract

The invention relates to an outer conduit (1) of an outlet (4) of a volute (3) of a heat transfer pump (2), particularly arranged in a housing defined in a heat engine of a vehicle, the outer conduit (1) being comprised on an outer face (9) of a cylinder housing (8) of the engine and comprising a first component (5a) that can guide the heat transfer fluid from said outlet (4) to an inlet (6) of an inner circuit (7) for the circulation of the heat transfer fluid, defined in the cylinder housing (8).

Description

CONDUIT EXTERNE D'UNE SORTIE D'UNE VOLUTE D'UNE POMPE A FLUIDE CALOPORTEUR D'UN MOTEUR THERMIQUE D'UN  EXTERNAL CONDUIT OF A VOLUTE OUTPUT OF A HEAT PUMP PUMP FROM A THERMAL MOTOR OF A
VEHICULE La présente invention concerne un conduit externe d'une sortie d'une volute d'une pompe à fluide caloporteur d'un moteur thermique d'un véhicule.  VEHICLE The present invention relates to an external duct of an outlet of a volute of a heat transfer fluid pump of a heat engine of a vehicle.
L'invention concerne également un carter-cylindres comprenant un tel conduit externe ainsi qu'un moteur comprenant ce carter-cylindres. The invention also relates to a crankcase comprising such an outer conduit and a motor comprising the crankcase.
L'invention concerne également un véhicule notamment un véhicule automobile, comportant un tel moteur. Dans l'état de la technique, un moteur thermique comporte habituellement un carter-cylindres fermé par une culasse. Pour le bon fonctionnement du moteur, ces carters doivent être refroidis. Pour ce faire, le moteur comprend un circuit de refroidissement dans lequel un fluide caloporteur est mis en circulation au moyen d'une pompe et qui, à son tour, est refroidi en traversant un radiateur. Une telle pompe comprend classiquement une volute dont une sortie est reliée par un conduit à un circuit interne du carter-cylindres comportant des chambres de refroidissement permettant une circulation de ce fluide autour des cylindres du moteur. The invention also relates to a vehicle, in particular a motor vehicle, comprising such a motor. In the state of the art, a heat engine usually comprises a crankcase closed by a cylinder head. For proper operation of the engine, these housings must be cooled. To do this, the engine comprises a cooling circuit in which a coolant is circulated by means of a pump and which, in turn, is cooled by passing through a radiator. Such a pump conventionally comprises a volute whose output is connected by a conduit to an internal circuit of the cylinder block having cooling chambers allowing a circulation of this fluid around the engine cylinders.
Un problème général d'un tel moteur est lié au fait que la pompe et une partie du circuit de refroidissement dont le conduit reliant la sortie de la volute au circuit interne du carter-cylindres, sont classiquement agencées au niveau d'une face externe du moteur et présente alors un encombrement qui n'est pas adapté aux dimensions du compartiment moteur des véhicules d'aujourd'hui. En effet, les constructeurs automobiles et/ou les motoristes cherchent actuellement à réaliser au vue des dimensions de tels compartiments, des moteurs de plus en plus compacts et présentant néanmoins des performances améliorées en terme de puissance et/ou de rendement qui impliquent souvent un accroissement de contraintes thermiques au niveau de ces derniers. A general problem of such an engine is related to the fact that the pump and a portion of the cooling circuit whose duct connecting the output of the volute to the internal circuit of the crankcase, are conventionally arranged at an outer face of the motor and then has a size that is not adapted to the dimensions of the engine compartment of today's vehicles. Indeed, car manufacturers and / or engine manufacturers are currently seeking to achieve in view of the dimensions of such compartments, increasingly compact engines and nevertheless have improved performance in terms of power and / or performance that often involve an increase thermal stresses at the level of these.
Dans l'optique de réduire cet encombrement, on connaît dans l'état de la technique une solution prévoyant une intégration de la pompe dans le carter-cylindres du moteur ainsi que du conduit reliant la sortie de volute de cette pompe au circuit interne du carter-cylindres. With a view to reducing this space requirement, it is known in the state of the art to provide a solution for integrating the pump into the engine crankcase and the duct connecting the volute outlet of this pump to the internal circuit of the crankcase. -cylindres.
Toutefois, une telle solution ne peut être mise en œuvre que dans un nombre limité de carter-cylindres car sa réalisation dépend intrinsèquement du procédé de fonderie utilisé pour la fabrication de ce carter-cylindres. However, such a solution can be implemented in a limited number of crankcase because its realization intrinsically depends on the foundry process used for the manufacture of this crankcase.
La présente invention vise à pallier ces inconvénients liés à l'état de la technique. The present invention aims to overcome these disadvantages related to the state of the art.
Dans ce dessein, l'invention porte sur un conduit externe d'une sortie d'une volute d'une pompe à fluide caloporteur notamment agencée dans un logement défini dans un moteur thermique d'un véhicule, le conduit externe étant compris sur une face externe d'un carter-cylindres du moteur et comporte une première composante susceptible de guider le fluide caloporteur de ladite sortie vers une entrée d'un circuit interne de circulation du fluide caloporteur défini dans le carter-cylindres. For this purpose, the invention relates to an external duct of an outlet of a volute of a heat transfer fluid pump, in particular arranged in a housing defined in a heat engine of a vehicle, the external duct being included on one side. external of a crankcase of the engine and comprises a first component capable of guiding the heat transfer fluid of said outlet to an inlet of an internal circulation circuit of the coolant defined in the crankcase.
Dans d'autres modes de réalisation : In other embodiments:
- le conduit externe comprend une deuxième composante formant avec la première composante un premier canal de circulation du fluide caloporteur vers au moins un dispositif du circuit de refroidissement ; the external duct comprises a second component forming with the first component a first circulation channel of the heat transfer fluid to at least one device of the cooling circuit;
- la première composante forme avec la face externe du carter un deuxième canal de circulation du fluide caloporteur vers ladite entrée du circuit interne de circulation du fluide caloporteur défini dans le carter-cylindres ;  the first component forms with the outer face of the casing a second heat transfer fluid circulation channel towards said inlet of the internal circulation circuit of the coolant defined in the crankcase;
- la première composante comprend une zone de passage du fluide caloporteur du deuxième canal vers un premier canal ;  the first component comprises a passage zone for the heat transfer fluid from the second channel to a first channel;
- une zone de passage du fluide caloporteur du deuxième canal vers un premier canal comprend au moins une ouverture ;  - A heat transfer fluid passage zone of the second channel to a first channel comprises at least one opening;
- la première composante et une deuxième composante sont deux pièces distinctes qui sont reliées l'une à l'autre de manière étanche ;  the first component and a second component are two separate parts which are connected to each other in a sealed manner;
- la première composante et une deuxième composante forment ensemble une pièce monobloc, et  the first component and a second component together form a single piece, and
- le conduit externe est une pièce amovible et/ou une pièce rapportée.  the external duct is a removable piece and / or an insert.
L'invention porte également sur un carter-cylindres d'un moteur d'un véhicule comprenant un circuit de refroidissement pourvu d'une pompe à fluide caloporteur agencée dans ledit carter-cylindres et d'un tel conduit externe. The invention also relates to a crankcase of a motor of a vehicle comprising a cooling circuit provided with a heat transfer fluid pump arranged in said crankcase and such an external conduit.
Dans d'autres modes de réalisation : In other embodiments:
- la face externe dudit carter comprend une cavité de montage dudit conduit externe ;  the outer face of said casing comprises a mounting cavity of said outer duct;
- le carter-cylindres est fabriqué selon un procédé de fonderie de type coulée haute pression ;  - The cylinder block is manufactured by a casting process of high pressure casting type;
- le carter-cylindres est en aluminium ou en alliage d'aluminium ; - la cavité de montage forme une cavité notamment pourvue de deux orifices correspondant respectivement à la sortie de la volute de la pompe à fluide caloporteur et à l'entrée du circuit interne de circulation du fluide caloporteur défini dans le carter- cylindres, et the cylinder block is made of aluminum or aluminum alloy; the mounting cavity forms a cavity in particular provided with two orifices respectively corresponding to the outlet of the volute of the coolant pump and the inlet of the internal circulation circuit of the coolant defined in the crankcase, and
- la cavité de montage comprend une zone de liaison au niveau de laquelle le conduit externe est relié mécaniquement et de manière étanche à la face externe du carter-cylindres.  - The mounting cavity comprises a connecting zone at which the outer conduit is mechanically and sealingly connected to the outer face of the crankcase.
L'invention porte aussi sur un moteur comprenant un tel carter-cylindres. L'invention concerne également un véhicule notamment un véhicule automobile comprenant un tel moteur. The invention also relates to an engine comprising such a crankcase. The invention also relates to a vehicle including a motor vehicle comprising such a motor.
D'autres avantages et caractéristiques de l'invention apparaîtront mieux à la lecture de la description d'un mode de réalisation préféré qui va suivre, en référence aux figures, réalisé à titre d'exemple indicatif et non limitatif : Other advantages and features of the invention will appear better on reading the description of a preferred embodiment which will follow, with reference to the figures, given as an indicative and nonlimiting example:
- la figure 1 représente en perspective une vue en coupe d'une partie d'un carter-cylindres comprenant une pompe de fluide caloporteur et un conduit externe selon le mode de réalisation de l'invention ; - Figure 1 shows in perspective a sectional view of a portion of a crankcase comprising a coolant pump and an outer conduit according to the embodiment of the invention;
- la figure 2 représente une vue en coupe d'une partie du carter- cylindres comprenant la pompe de fluide caloporteur et le conduit externe selon le mode de réalisation de l'invention, et  FIG. 2 represents a sectional view of a portion of the crankcase comprising the coolant pump and the external conduit according to the embodiment of the invention, and
- la figure 3 représente une vue en coupe transversale selon une ligne lll-lll d'une partie du conduit externe agencé sur une face externe du carter-cylindres comprenant une zone de passage du fluide caloporteur selon le mode de réalisation de l'invention.  - Figure 3 shows a cross-sectional view along a line III-III of a portion of the outer conduit arranged on an outer face of the cylinder block comprising a passage zone of the heat transfer fluid according to the embodiment of the invention.
Dans la description qui va suivre, des chiffres de référence identiques désignent des pièces identiques ou ayant des fonctions similaires. On a représenté sur les figures 1 à 3, une partie d'un carter-cylindres 8 d'un moteur thermique d'un véhicule notamment un véhicule automobile comportant classiquement ce carter-cylindres 8 appelé communément « bloc cylindres », coiffé d'une culasse. Un tel carter-cylindres 8 peut-être, pour des raisons d'allégement, fabriqué en aluminium et pour des raisons économiques et de grande série peut être réalisé en fonderie de type coulée haute pression. In the following description, like reference numerals designate like parts or having similar functions. FIGS. 1 to 3 show a portion of a crankcase 8 of a combustion engine of a vehicle, in particular a motor vehicle, conventionally comprising the crankcase 8, commonly called a "cylinder block", capped with a cylinder head. Such a cylinder block 8 may be, for reasons of lightening, made of aluminum and for economic reasons and large series can be made in casting type high pressure casting.
De manière connue, ce carter-cylindres 8 comporte un circuit interne 7 de circulation d'un fluide caloporteur autrement appelé « liquide de refroidissement » qui est destiné par exemple à refroidir le moteur en permettant une circulation de ce fluide autour des cylindres du moteur. Le circuit interne 7 comporte un conduit interne d'alimentation 15 formé d'au moins une chambre de refroidissement, dont une entrée 6 comprenant un orifice d'entrée, débouche dans une cavité de montage 14 de ce carter- cylindres 8. In known manner, this cylinder block 8 comprises an internal circuit 7 for circulating a heat transfer fluid otherwise called "coolant" which is intended for example to cool the engine by allowing a circulation of this fluid around the engine cylinders. The internal circuit 7 comprises an internal supply duct 15 formed of at least one cooling chamber, of which an inlet 6 comprising an inlet orifice, opens into a mounting cavity 14 of this cylinder block 8.
Cette cavité de montage 14 comprend également une sortie 4 pourvue d'un orifice d'une volute 3 d'une pompe à fluide caloporteur 2 pour la mise en circulation de ce fluide sous pression dans un circuit de refroidissement de ce moteur. Cette sortie 4 est un orifice 4 communiquant avec la cavité de la volute 3 de la pompe 2. Une telle pompe 2 est de préférence agencée dans un logement défini dans le moteur et en particulier dans un logement défini dans le carter-cylindres 8 et ce, de manière à réduire l'encombrement du moteur. La volute 3 également appelée « chambre de haute-pression » de la pompe 2 est destinée à recevoir une aube 17, ou une turbine, contribuant à la circulation du fluide sous pression dans le circuit de refroidissement. Cette aube 17 est montée sur une extrémité 16 d'un axe de pompe traversant de part et d'autre un corps de pompe (non représenté). Cette volute 3 est formée dans le carter-cylindres 8 et elle comporte dans une partie intermédiaire, agencée par exemple sensiblement au droit de l'axe de pompe une entrée d'alimentation (non représentée) pourvue d'un orifice destiné à permettre l'alimentation de la pompe 2 du moteur en fluide caloporteur. This mounting cavity 14 also comprises an outlet 4 provided with an orifice of a volute 3 of a heat transfer fluid pump 2 for circulating this fluid under pressure in a cooling circuit of this engine. This outlet 4 is an orifice 4 communicating with the cavity of the volute 3 of the pump 2. Such a pump 2 is preferably arranged in a housing defined in the engine and in particular in a housing defined in the crankcase 8 and this , so as to reduce the size of the engine. The volute 3 also called "high-pressure chamber" of the pump 2 is intended to receive a blade 17, or a turbine, contributing to the circulation of the fluid under pressure in the cooling circuit. This blade 17 is mounted on one end 16 of a pump shaft passing on either side of a pump body (not shown). This volute 3 is formed in the crankcase 8 and comprises in a intermediate portion, arranged for example substantially in line with the pump shaft a feed inlet (not shown) provided with an orifice for allowing the supply of the pump 2 of the engine heat transfer fluid.
Sur les figures 1 à 3, ce carter-cylindres 8 comprend également un conduit externe 1 de la sortie 4 de la volute 3 de la pompe 2 qui est fixé sur la face externe 9 de ce carter 8. Ce conduit externe 1 peut être une pièce amovible qui est rapportée sur la face externe 9. Le conduit externe 1 comprend des première et deuxième composantes 5a, 5b qui peuvent être deux pièces distinctes qui sont assemblées/reliées l'une avec l'autre de manière étanche. Dans une alternative, ces première et deuxième composantes 5a, 5b peuvent former ensemble une pièce monobloc. Ce conduit externe 1 est agencé dans la cavité de montage 14 en étant lié mécaniquement et de manière étanche à la face externe 9 du carter- cylindres 8. Cette liaison mécanique est réalisée à partir d'une coopération entre des éléments de fixation notamment des éléments de vissage, avec une zone de liaison 10. Cette zone de liaison 10 est de préférence définie au niveau d'un bord périphérique de cette cavité de montage 14. In FIGS. 1 to 3, this cylinder block 8 also comprises an external duct 1 of the outlet 4 of the volute 3 of the pump 2 which is fixed on the outer face 9 of this casing 8. This external duct 1 can be a removable part which is attached to the outer face 9. The outer conduit 1 comprises first and second components 5a, 5b which can be two separate parts which are assembled / connected to each other sealingly. In an alternative, these first and second components 5a, 5b may together form a single piece. This external duct 1 is arranged in the mounting cavity 14 by being mechanically and sealingly connected to the outer face 9 of the cylinder block 8. This mechanical connection is made from a cooperation between fastening elements including elements The connecting zone 10 is preferably defined at a peripheral edge of this mounting cavity 14.
La première composante 5a est susceptible de guider le fluide caloporteur par un deuxième canal 1 1 b de la sortie 4 de la volute vers l'entrée 6 du circuit interne 7 de circulation du fluide caloporteur défini dans le carter- cylindres 8. Autrement dit, la première composante 5a est susceptible de participer au guidage du fluide caloporteur de la sortie 4 de la volute vers l'entrée 6 du circuit interne 7. Cette première composante 5a de ce conduit externe 1 forme avec la deuxième composante 5b un premier canal 1 1 a de circulation du fluide caloporteur vers au moins un dispositif du circuit de refroidissement. Un tel dispositif est un autre consommateur de fluide caloporteur du circuit de refroidissement qui peut être à titre d'exemple un échangeur de chaleur tel qu'un aérotherme ou encore à un échangeur d'huile moteur plus connu sous l'acronyme « EMO » pour y évacuer de la chaleur produite au niveau du carter d'huile moteur. Le premier canal 1 1 a comprend une sortie 19 pourvue d'un orifice. Cette sortie 19 est comprise dans une partie de liaison 18 de la deuxième composante 5b qui présente une forme globalement cylindrique et sur laquelle partie 18 une extrémité d'un conduit de liaison, également appelées durites, peut être fixée afin de relier le conduit externe 1 au dispositif du circuit de refroidissement. The first component 5a is capable of guiding the coolant through a second channel 1 1b of the outlet 4 of the volute to the inlet 6 of the internal heat transfer circuit 7 defined in the crankcase 8. In other words, the first component 5a is capable of participating in guiding the heat transfer fluid from the outlet 4 of the volute to the inlet 6 of the internal circuit 7. This first component 5a of this external duct 1 forms with the second component 5b a first channel 1 1 a circulation of the coolant to at least one device of the cooling circuit. Such a device is another consumer coolant heat transfer fluid which may be for example a heat exchanger such as a heater or to an engine oil exchanger better known by the acronym "EMO" to evacuate heat produced therein oil sump level. The first channel 11a comprises an outlet 19 provided with an orifice. This outlet 19 is included in a connecting portion 18 of the second component 5b which has a generally cylindrical shape and on which part 18 an end of a connecting conduit, also called hoses, can be fixed to connect the outer conduit 1 to the cooling circuit device.
Dans une alternative du conduit externe 1 , le circuit interne 7 peut comprendre un élément de contrôle (non représenté) de la circulation du fluide caloporteur sous pression. Cet élément de contrôle placé en aval de l'entrée 6, permet de gérer le débit au niveau des chambres de refroidissement du circuit interne 7. Cet élément de contrôle peut être une électrovanne, une vanne pilotée ou encore vanne thermostatique. Dans cette configuration, le conduit externe 1 est alors adapté à une circulation variable du fluide caloporteur pour le refroidissement du carter-cylindres 8. En effet, lorsque l'élément de contrôle est dans une position de fermeture du circuit interne 7, le débit du fluide passant dans le deuxième canal 1 1 b décrit par la suite et qui continue à alimenter la sortie 19 pour ne pas interrompre la fourniture en fluide des autres consommateurs. La première composante 5a de ce conduit externe 1 est susceptible de guider le fluide caloporteur de la sortie 4 de la volute 3 de la pompe 2 vers l'entrée 6 du circuit interne 7 comportant le conduit interne d'alimentation 15 formé d'au moins une chambre de refroidissement. Plus précisément, la première composante 5a forme avec la face externe 9 du carter 8 et en particulier avec la cavité de montage 14, le deuxième canal 1 1 b de circulation du fluide caloporteur vers cette entrée 6 du circuit interne 7. La première composante 5a de ce conduit externe 1 comprend une zone de passage 12 du fluide caloporteur du deuxième canal 1 1 b vers le premier canal 1 1 a. Cette zone de passage 12 est comprise de préférence sur une partie de cette première composante 5a pouvant être définie à équidistance des extrémités 24a, 24b de cette composante 5a visibles sur la figure 2. Cette zone de passage 12 est assurée par des ouvertures 13 visibles dans une section transversale de la zone de passage 12sur la figure 3 qui a essentiellement la forme d'un « U » inversé. La zone de passage 12 comprend des parois latérales 23 qui comprennent chacune une ouverture 13. Ces ouvertures 13 participent au passage du fluide caloporteur du deuxième canal 1 1 b vers le premier canal 1 1 a. In an alternative of the external conduit 1, the internal circuit 7 may comprise a control element (not shown) of the circulation of the heat transfer fluid under pressure. This control element placed downstream of the inlet 6 makes it possible to manage the flow rate at the cooling chambers of the internal circuit 7. This control element can be a solenoid valve, a controlled valve or a thermostatic valve. In this configuration, the external duct 1 is then adapted to a variable circulation of the coolant for cooling the crankcase 8. Indeed, when the control element is in a closed position of the internal circuit 7, the flow rate of the fluid passing in the second channel 1 1 b described later and continues to feed the outlet 19 to not interrupt the fluid supply of other consumers. The first component 5a of this external duct 1 is capable of guiding the heat-transfer fluid from the outlet 4 of the volute 3 of the pump 2 to the inlet 6 of the internal circuit 7 comprising the internal supply duct 15 formed by at least a cooling chamber. More precisely, the first component 5a forms, with the external face 9 of the casing 8 and in particular with the mounting cavity 14, the second channel 1 1b for circulating the heat-transfer fluid towards this inlet 6 of the internal circuit 7. The first component 5a of this external conduit 1 comprises a passage zone 12 of the heat transfer fluid of the second channel 1 1b to the first channel 1 1 a. This passage zone 12 is preferably comprised of a part of this first component 5a that can be defined equidistant from the ends 24a, 24b of this component 5a visible in FIG. 2. This passage zone 12 is provided by openings 13 visible in FIG. a cross-section of the passage zone 12 of Figure 3 which is essentially in the form of an inverted "U". The passage zone 12 comprises side walls 23 which each comprise an opening 13. These openings 13 participate in the passage of the heat transfer fluid from the second channel 1 1b to the first channel 1 1 a.
Ainsi en référence aux figures 2 et 3, dans ce carter-cylindres 8, lorsque la pompe 2 effectue une mise en circulation du fluide caloporteur dans le circuit de refroidissement, le fluide est alors évacué de la pompe 2 via la sortie 4 de la volute 3 pour circuler sous pression dans le deuxième canal 1 1 b selon le sens des flèches référencées 20. En circulant ainsi dans ce deuxième canal 1 1 b, ce fluide est alors conduit à la fois vers le circuit interne 7 défini dans le carter-cylindres 8 via l'entrée 6, et vers au moins un dispositif du circuit de refroidissement en traversant la zone de passage 12 notamment les ouvertures 13 définies dans cette zone 12 conformément au sens des flèches référencées 21 . Dans cette configuration, en traversant ainsi la zone de passage 12, le fluide passe alors du deuxième canal 1 1 b vers le premier canal 1 1 a jusqu'à être conduit vers le dispositif via la sortie référencée 19 et le conduit reliant la partie de liaison 18 de la deuxième composante 5b audit dispositif selon le sens de la flèche 22. Un tel conduit externe 1 permet ainsi de canaliser le fluide caloporteur sous pression dans la continuité de la volute 3 de la pompe 2 pour minimiser la perte de charge. De plus, un tel conduit externe 1 est facilement reliable mécaniquement à la face externe 9 du carter-cylindres 8 et est en outre compatible avec des carter-cylindres 8 fabriqué selon différents procédés de fonderie et notamment selon un procédé de fonderie de type coulée haute pression. Thus, with reference to FIGS. 2 and 3, in this crankcase 8, when the pump 2 circulates the heat transfer fluid in the cooling circuit, the fluid is then discharged from the pump 2 via the outlet 4 of the volute 3 to circulate under pressure in the second channel 1 1 b in the direction of the arrows referenced 20. While circulating in this second channel 1 1 b, this fluid is then led to both the internal circuit 7 defined in the crankcase 8 via the inlet 6, and to at least one device of the cooling circuit by passing through the passage zone 12, in particular the openings 13 defined in this zone 12 in the direction of the arrows referenced 21. In this configuration, thus crossing the passage zone 12, the fluid then passes from the second channel 1 1b to the first channel 1 1 a until it is led to the device via the output referenced 19 and the conduit connecting the part of connection 18 of the second component 5b to said device in the direction of the arrow 22. Such external conduit 1 thus allows to channel the heat transfer fluid under pressure in the continuity of the volute 3 of the pump 2 to minimize the pressure drop. In addition, such an outer conduit 1 is easily mechanically connected to the outer face 9 of the crankcase 8 and is further compatible with crankcase 8 made by different foundry processes and in particular by a casting process of high casting type pressure.

Claims

REVENDICATIONS
1 . Conduit externe (1 ) d'une sortie (4) d'une volute (3) d'une pompe à fluide caloporteur (2) notamment agencée dans un logement défini dans un moteur thermique d'un véhicule, le conduit externe (1 ) étant compris sur une face externe (9) d'un carter-cylindres (8) du moteur et comporte une première composante (5a) susceptible de guider le fluide caloporteur de ladite sortie (4) vers une entrée (6) d'un circuit interne (7) de circulation du fluide caloporteur défini dans le carter- cylindres (8). 1. External duct (1) of an outlet (4) of a volute (3) of a heat-transfer fluid pump (2), in particular arranged in a housing defined in a heat engine of a vehicle, the external duct (1) being included on an outer face (9) of a crankcase (8) of the engine and comprises a first component (5a) capable of guiding the coolant from said outlet (4) to an inlet (6) of a circuit internal (7) circulation of the coolant defined in the crankcase (8).
2. Conduit externe (1 ) selon la revendication précédente, caractérisé en qu'il comprend une deuxième composante (5b) formant avec la première composante (5a) un premier canal (1 1 a) de circulation du fluide caloporteur vers au moins un dispositif du circuit de refroidissement. 2. outer conduit (1) according to the preceding claim, characterized in that it comprises a second component (5b) forming with the first component (5a) a first channel (1 1 a) circulation of the heat transfer fluid to at least one device of the cooling circuit.
3. Conduit externe (1 ) selon l'une quelconque des revendications précédentes, caractérisé en ce que la première composante (5a) forme avec la face externe (9) du carter (8) un deuxième canal (1 1 b) de circulation du fluide caloporteur vers ladite entrée (6) du circuit interne (7) de circulation du fluide caloporteur défini dans le carter-cylindres (8). 3. outer conduit (1) according to any one of the preceding claims, characterized in that the first component (5a) forms with the outer face (9) of the housing (8) a second channel (1 1 b) of the circulation of heat transfer fluid to said inlet (6) of the internal circuit (7) for circulating the coolant defined in the crankcase (8).
4. Conduit externe (1 ) selon l'une quelconque des revendications précédentes, caractérisé en ce que : 4. External conduit (1) according to any one of the preceding claims, characterized in that:
- la première composante (5a) comprend une zone de passage (12) du fluide caloporteur du deuxième canal (1 1 b) vers un premier canal (1 1 a), et/ou  the first component (5a) comprises a passage zone (12) for the heat transfer fluid of the second channel (11b) to a first channel (11a), and / or
- une zone de passage (12) du fluide caloporteur du deuxième canal (1 1 b) vers un premier canal (1 1 a) comprend au moins une ouverture (13). a passage zone (12) of the heat transfer fluid of the second channel (11 b) to a first channel (11a) comprises at least one opening (13).
5. Conduit externe (1 ) selon l'une quelconque des revendications précédentes, caractérisé en ce que la première composante (5a) et une deuxième composante (5b) : 5. outer conduit (1) according to any one of the preceding claims, characterized in that the first component (5a) and a second component (5b):
- sont deux pièces distinctes qui sont reliées l'une à l'autre de manière étanche, et/ou  - are two separate parts which are connected to each other in a sealed manner, and / or
- forment ensemble une pièce monobloc.  - together form a single piece.
6. Conduit externe (1 ) selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il est une pièce amovible et/ou une pièce rapportée. 6. external conduit (1) according to any one of the preceding claims, characterized in that it is a removable part and / or an insert.
7. Carter-cylindres (8) d'un moteur d'un véhicule comprenant un circuit de refroidissement pourvu d'une pompe à fluide caloporteur (2) agencée dans ledit carter-cylindres (8) et d'un conduit externe (1 ) selon l'une quelconque des revendications précédentes. 7. Crankcase (8) of an engine of a vehicle comprising a cooling circuit provided with a heat-transfer fluid pump (2) arranged in said crankcase (8) and an external conduit (1) according to any one of the preceding claims.
8. Carter-cylindres (8) selon la revendication précédente, caractérisé en ce que : 8. Carter-cylinders (8) according to the preceding claim, characterized in that:
- la face externe (9) dudit carter (8) comprend une cavité de montage (14) dudit conduit externe (1 ), et/ou  the outer face (9) of said casing (8) comprises a mounting cavity (14) of said outer duct (1), and / or
- le carter-cylindres (8) est fabriqué selon un procédé de fonderie de type coulée haute pression, et/ou  the cylinder block (8) is manufactured by a high-pressure casting type casting process, and / or
- le carter-cylindres (8) est en aluminium ou en alliage d'aluminium, et/ou  the cylinder block (8) is made of aluminum or aluminum alloy, and / or
- la cavité de montage (14) forme une cavité notamment pourvue de deux orifices correspondant respectivement à la sortie (4) de la volute (3) de la pompe à fluide caloporteur (2) et à l'entrée (6) du circuit interne (7) de circulation du fluide caloporteur défini dans le carter-cylindres (8), et/ou - la cavité de montage (14) comprend une zone de liaison (10) au niveau de laquelle le conduit externe (1 ) est relié mécaniquement et de manière étanche à la face externe (9) du carter-cylindres (8). the mounting cavity (14) forms a cavity in particular provided with two orifices respectively corresponding to the outlet (4) of the volute (3) of the heat transfer fluid pump (2) and to the inlet (6) of the internal circuit (7) circulation of the coolant defined in the crankcase (8), and / or - The mounting cavity (14) comprises a connection zone (10) at which the outer conduit (1) is mechanically and sealingly connected to the outer face (9) of the cylinder block (8).
9. Moteur comprenant un carter-cylindres (8) selon l'une quelconque des revendications 7 et 8. 9. Motor comprising a crankcase (8) according to any one of claims 7 and 8.
10. Véhicule notamment un véhicule automobile comprenant un moteur selon la revendication précédente. 10. Vehicle including a motor vehicle comprising a motor according to the preceding claim.
EP17754766.8A 2016-08-16 2017-08-03 Outer conduit of an outlet of a volute of a heat transfer pump of a heat engine of a vehicle Active EP3500746B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1657775A FR3055150A1 (en) 2016-08-16 2016-08-16 EXTERNAL CONDUIT OF AN OUTPUT OF A VOLUTE OF A PUMP WITH A HEAT PUMP FLUID OF A THERMAL MOTOR OF A VEHICLE
PCT/FR2017/052178 WO2018033669A1 (en) 2016-08-16 2017-08-03 Outer conduit of an outlet of a volute of a heat transfer pump of a heat engine of a vehicle

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EP3500746A1 true EP3500746A1 (en) 2019-06-26
EP3500746B1 EP3500746B1 (en) 2023-07-05

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EP17754766.8A Active EP3500746B1 (en) 2016-08-16 2017-08-03 Outer conduit of an outlet of a volute of a heat transfer pump of a heat engine of a vehicle

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US (1) US10823043B2 (en)
EP (1) EP3500746B1 (en)
JP (1) JP6702508B2 (en)
CN (1) CN109642515B (en)
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WO (1) WO2018033669A1 (en)

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US11525385B2 (en) * 2020-02-13 2022-12-13 Caterpillar Inc. Diverter fittings for cooling systems of an engine

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1754689A (en) * 1926-06-07 1930-04-15 Hupp Motor Car Corp Cooling system
GB1279132A (en) * 1969-04-02 1972-06-28 Chrysler United Kingdom Ltd Fo Improvements in or relating to internal combustion engines
DE3633261C1 (en) * 1986-09-30 1987-05-21 Bayerische Motoren Werke Ag Cast machine housing for liquid-cooled internal combustion engines with a V-shaped cylinder arrangement
DE4001140C1 (en) * 1990-01-17 1991-04-11 Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De Cylinder block for liquid cooled IC engine - has coolant channels in internal angle of V=shaped block
DE4326158C2 (en) * 1993-08-04 1995-05-11 Daimler Benz Ag Liquid guidance for an internal combustion engine
JPH07127478A (en) * 1993-10-29 1995-05-16 Yamaha Motor Co Ltd Timing chain case structure for four-cycle engine
US5503117A (en) * 1993-10-29 1996-04-02 Yamaha Hatsudoki Kabushiki Kaisha Engine cooling system
JP3157371B2 (en) * 1993-10-29 2001-04-16 ヤマハ発動機株式会社 Accessory mounting structure for automobile engine
JP3287961B2 (en) * 1993-10-29 2002-06-04 ヤマハ発動機株式会社 Engine cooling structure
DE19851232A1 (en) * 1998-11-06 2000-05-11 Bayerische Motoren Werke Ag Cast machine housing for a forced-circulation internal combustion engine with a lubrication system, in particular with cylinders arranged in a row
JP2001132468A (en) * 1999-11-11 2001-05-15 Kawasaki Heavy Ind Ltd Coolant passage structure of v type liquid-cooled engine
US8739756B2 (en) * 2011-03-23 2014-06-03 GM Global Technology Operations LLC Engine assembly with engine block-integrated cooling system
TWI553215B (en) * 2013-06-28 2016-10-11 山葉發動機股份有限公司 Saddle-type vehicle

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EP3500746B1 (en) 2023-07-05
US20200191040A1 (en) 2020-06-18
FR3055150A1 (en) 2018-02-23
CN109642515B (en) 2020-12-15
CN109642515A (en) 2019-04-16
US10823043B2 (en) 2020-11-03
JP2019526013A (en) 2019-09-12
JP6702508B2 (en) 2020-06-03
WO2018033669A1 (en) 2018-02-22

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