EP3094851A1 - Pump body built into the crankcase of a liquid-cooled engine - Google Patents

Pump body built into the crankcase of a liquid-cooled engine

Info

Publication number
EP3094851A1
EP3094851A1 EP15702534.7A EP15702534A EP3094851A1 EP 3094851 A1 EP3094851 A1 EP 3094851A1 EP 15702534 A EP15702534 A EP 15702534A EP 3094851 A1 EP3094851 A1 EP 3094851A1
Authority
EP
European Patent Office
Prior art keywords
water
pump
engine
motorcycle
cooled
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
EP15702534.7A
Other languages
German (de)
French (fr)
Other versions
EP3094851B1 (en
Inventor
Olivier Midy
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.)
RDMO SAS
Original Assignee
RDMO 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 RDMO SAS filed Critical RDMO SAS
Publication of EP3094851A1 publication Critical patent/EP3094851A1/en
Application granted granted Critical
Publication of EP3094851B1 publication Critical patent/EP3094851B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • F02F7/0043—Arrangements of mechanical drive elements
    • F02F7/0058—Longitudinally or transversely separable crankcases
    • 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
    • F01P5/00—Pumping cooling-air or liquid coolants
    • F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
    • F01P5/12—Pump-driving arrangements
    • 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
    • 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
    • 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
    • F02F7/007—Adaptations for cooling

Definitions

  • the present invention relates to the field of twin-cylinder engines, including flat-twin engines with liquid cooling.
  • the water pump is installed on the clutch housing, itself mounted on one of the half crankcases.
  • the clutch housing has a shape defining the bottom of the pump.
  • the body of the pump is defined by this shape and the lid.
  • a lid closes the body of the pump. Ducts feed the cylinders into boreholes in the clutch housing and the engine crankcase. A hose connects the water heater to the pump inlet on the side of the motorcycle.
  • the present invention relates, in its most general sense, to a water-cooled motorcycle engine, comprising a main engine casing with a vertical joint plane, comprising a water pump whose rotor is driven by the engine.
  • distribution shaft characterized in that one of the half casings has in its upper part an excrescence defining a cavity forming the pump body, and opening into the closure plane of the two casings, said pump body being closed by a cover comprising a coolant inlet duct placed on top of the engine, the cover further having a configuration opening into a coolant outlet, the engine having a conduit connecting the pump body to the rear cylinder.
  • the vertical plane passing through the axis of said inlet duct is placed between said joint plane and the outer vertical plane of said half-casing.
  • the water-cooled motorcycle engine further comprises a tube housed in a duct opening at one of its ends into the liquid outlet of said cover, and at the other end into the front cylinder.
  • said tube is movable between a position of use where it ensures a sealed conduction between the pump body and the front cylinder, and a retracted position for disassembly, in which the end of the tube is discarded. sliding the pump head in said duct.
  • said tube has an annular groove cooperating in the use position with a locking screw.
  • said engine is a two-cylinder engine comprising two aligned cylinders, arranged longitudinally with respect to the motorcycle.
  • the conduit connecting the pump body to the rear cylinder is constituted by a cavity formed in the half casing having the pump body.
  • FIG. 1 represents a partial three-quarter rear view of the main crankcase equipped with a water pump according to the invention
  • FIG. 2 represents a partial three-quarter front view of the main crankcase equipped with a water pump according to the invention
  • Figure 3 shows a partial rear three-quarter view of the main crankcase without the pump cover
  • FIG. 5 shows a top view of the housing and the pump.
  • the engine block (1) comprises a main housing forming a right half-casing (2) and a left half-casing (3) associated in a joint plane (4) corresponds in the example described in the longitudinal plane vertical motorcycle.
  • This housing has a known way housing
  • the plane of installation of the pump cover can be shifted towards the outside right half casing (2).
  • the right half casing (2) has a protuberance
  • This protuberance (8) is located at the upper part of the half-casing (2). It delimits a hollow volume
  • This hollow volume (9) has a generally volute shape, with a portion (11) substantially cylindrical extended by a spiral extension (12) partially separated by a partition (13) of the cylindrical portion (11).
  • This volume opens towards the complementary half-casing (3) by a flat front surface (14) located in the joint plane (4).
  • a cover (17) closes the pump body thus formed, by screwing on the joint plane (4).
  • the half-casing (2) has, at this front surface (14), two countersinks (flat-bottom drilling) (15, 16) for centering the pump cover (17) via two centering sleeves (calibrated tubes complementary to counterbores).
  • the countersinks (15, 16) are extended by threads.
  • two complementary threads (18, 19) are provided on the front surface (14).
  • the lid is fixed on the front surface (14) by four screws cooperating with said threads.
  • the complementary half-casing (3) has a bore (20) perpendicular to the joint planes (6, 21) and parallel to the axis of the cylinders.
  • This bore (20) opens into the laying plane (21) of the front cylinder.
  • this borehole opens into a substantially annular zone (22) provided on the complementary half-casing (3), in the vicinity of the protrusion (14).
  • the pump cover (17) has a water inlet duct (23) extending radially with respect to the pump body, towards the front of the engine, on the upper part of the casing. It is bent to feed the rotor with coolant from the radiator.
  • the cover (17) also has a boss (24) receiving a bleed screw.
  • the cover (17) also has a protuberance (25) inside which is arranged an outlet bore (27) coaxial with the bore (20), to conduct the cooling liquid from the pump body to the front cylinder , via a tube (26) housed in the borehole (20).
  • This tube (26) is configured to allow a tight connection of its upstream end with the outlet bore (27), and downstream with the bore (20). O-rings are provided at each end to seal the connection.
  • This tube is movable longitudinally between a position of use, where it provides the hydraulic connection, and a disassembly position in which it enters the complementary housing (3) to allow the disassembly of the cover (17).
  • a screw (28) ensures the locking of the tube (26) in the use position, by cooperation with an annular groove (29).
  • the screw (28) is screwed into a boss (30).
  • the output flow is illustrated in Figure 5. It breaks down into a flow (31) feeding the front cylinder, and a flow (32) feeding the rear cylinder.
  • This flow (32) impresses a bore (34) parallel to the axis of the pump and opening under the protuberance (25) of the pump cover (17).
  • This flow (32) feeds the rear cylinder via a bore (33) provided in the first half-casing (2).
  • the two boreholes (33, 34) communicate with each other.
  • the pump cover installation plane can be shifted towards the outside of the housing (2).

Landscapes

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

Abstract

The invention relates to a water-cooled motorcycle engine comprising a main engine crankcase having a vertical joint face (4), including a water pump of which the rotor (10) is driven by the distribution shaft, characterised in that one of the crankcase-halves (2) includes a protuberance (8) defining a hollow volume (9) forming the pump body and opening onto the joint face (4) of the two crankcases. Said pump body is closed by a cover (17) comprising an inlet channel (23) for the cooling liquid, placed on top of the engine, said cover (17) also having a configuration opening into a cooling liquid outlet.

Description

CORPS DE POMPE INTEGREE DANS LE CARTER D'UN MOTEUR A  PUMP BODY INTEGRATED IN THE CASING OF A MOTOR A
REFROIDISSEMENT LIQUIDE.  LIQUID COOLING.
Domaine de 1 ' invention Field of the invention
La présente invention concerne le domaine des moteurs bicylindre, notamment des moteurs de type flat-twin à refroidissement liquide. The present invention relates to the field of twin-cylinder engines, including flat-twin engines with liquid cooling.
Ces moteurs comportent de manière connue deux demi- carters complémentaires par rapport à un plan de joint vertical longitudinal, correspond généralement au plan médian de la motocyclette. Une pompe hydraulique assure la circulation du liquide de refroidissement. Etat de la technique  These engines comprise in known manner two complementary half-casings with respect to a longitudinal vertical joint plane, generally corresponds to the median plane of the motorcycle. A hydraulic pump ensures the circulation of the coolant. State of the art
On connaît par exemple dans l'état de la technique la solution mise en œuvre sur les motocyclettes Suzuki TL1000S. La pompe à eau est installée sur le carter d'embrayage, lui-même monté sur l'un des demi-carters. Le carter d'embrayage présente une forme définissant le fond de la pompe. Le corps de la pompe est défini par cette forme et le couvercle. For example, in the state of the art, the solution implemented on Suzuki TL1000S motorcycles is known. The water pump is installed on the clutch housing, itself mounted on one of the half crankcases. The clutch housing has a shape defining the bottom of the pump. The body of the pump is defined by this shape and the lid.
L'entraînement de la pompe est assuré par l'arbre de distribution. Un couvercle referme le corps de la pompe. Des conduits alimentent les cylindres dans des forages aménagés dans le carter d'embrayage et le demi-carter moteur. Une durite relie le radiateur d'eau à l'entrée de la pompe située sur le coté de la motocyclette.  The drive of the pump is ensured by the distribution shaft. A lid closes the body of the pump. Ducts feed the cylinders into boreholes in the clutch housing and the engine crankcase. A hose connects the water heater to the pump inlet on the side of the motorcycle.
Inconvénients de l'art antérieur Disadvantages of prior art
La solution de l'art antérieur implique le positionnement de la pompe latéralement. Elle forme ainsi une protubérance disgracieuse, et implique l'arrivée d'une tubulure d'eau sur le coté de la motocyclette. Outre l'aspect inélégant de cette tubulure, cette solution peut conduire à l'arrachement de la tubulure. Solution apportée par l'invention The solution of the prior art involves the positioning of the pump laterally. It thus forms an unsightly protuberance, and involves the arrival of a tubing of water on the side of the motorcycle. In addition to the inelegant aspect of this tubing, this solution can lead to tearing of the tubing. Solution provided by the invention
Afin de remédier à ces inconvénients, la présente invention concerne, selon son acception la plus générale, un moteur de motocyclette refroidi par eau, comprenant un carter moteur principal à plan de joint vertical, comprenant une pompe à eau dont le rotor est entraîné par l'arbre de distribution caractérisé en ce que l'un des demi-carters présente dans sa partie supérieure une excroissance définissant une cavité formant le corps de pompe, et débouchant dans le plan de fermeture des deux carters, ledit corps de pompe étant fermé par un couvercle comprenant un conduit d'entrée du liquide de refroidissement placé sur le dessus du moteur, le couvercle présentant en outre une configuration débouchant dans une sortie de liquide de refroidissement, le moteur comportant un conduit reliant le corps de la pompe au cylindre arrière. In order to overcome these drawbacks, the present invention relates, in its most general sense, to a water-cooled motorcycle engine, comprising a main engine casing with a vertical joint plane, comprising a water pump whose rotor is driven by the engine. distribution shaft characterized in that one of the half casings has in its upper part an excrescence defining a cavity forming the pump body, and opening into the closure plane of the two casings, said pump body being closed by a cover comprising a coolant inlet duct placed on top of the engine, the cover further having a configuration opening into a coolant outlet, the engine having a conduit connecting the pump body to the rear cylinder.
De préférence, le plan vertical passant par l'axe dudit conduit d'entrée est placé entre ledit plan de joint et le plan vertical extérieur dudit demi-carter.  Preferably, the vertical plane passing through the axis of said inlet duct is placed between said joint plane and the outer vertical plane of said half-casing.
Avantageusement, le moteur de motocyclette refroidi par eau comporte en outre un tube logé dans un conduit débouchant à l'une de ses extrémités dans la sortie de liquide dudit couvercle, et à l'autre extrémité dans le cylindre avant .  Advantageously, the water-cooled motorcycle engine further comprises a tube housed in a duct opening at one of its ends into the liquid outlet of said cover, and at the other end into the front cylinder.
Selon un mode de réalisation préféré, ledit tube est mobile entre une position d'utilisation où il assure une conduction étanche entre le corps de pompe et le cylindre avant, et une position rétractée pour le démontage, dans laquelle l'extrémité du tube est écarté de la tête de pompe par coulissement dans ledit conduit. Avantageusement, ledit tube présente une gorge annulaire coopérant en position d'utilisation avec une vis de blocage . According to a preferred embodiment, said tube is movable between a position of use where it ensures a sealed conduction between the pump body and the front cylinder, and a retracted position for disassembly, in which the end of the tube is discarded. sliding the pump head in said duct. Advantageously, said tube has an annular groove cooperating in the use position with a locking screw.
Selon une variante particulière, ledit moteur est un moteur bicylindre comportant deux cylindres alignés, disposés longitudinalement par rapport à la motocyclette.  According to a particular variant, said engine is a two-cylinder engine comprising two aligned cylinders, arranged longitudinally with respect to the motorcycle.
De préférence, le conduit reliant le corps de pompe au cylindre arrière est constitué par une cavité formée dans le demi-carter présentant le corps de pompe.  Preferably, the conduit connecting the pump body to the rear cylinder is constituted by a cavity formed in the half casing having the pump body.
Description détaillée d'un exemple non limitatif de Detailed description of a non-limiting example of
réalisation  production
L'invention sera mieux comprise à la lecture de la description qui suit, se référant aux dessins annexés correspondant un exemple non limitatif de réalisation où : The invention will be better understood on reading the description which follows, with reference to the accompanying drawings corresponding to a nonlimiting embodiment where:
la figure 1 représente une vue partielle de trois-quarts arrière du carter moteur principal équipé d'une pompe à eau selon l'invention  FIG. 1 represents a partial three-quarter rear view of the main crankcase equipped with a water pump according to the invention;
- la figure 2 représente une vue partielle de trois-quarts avant du carter moteur principal équipé d'une pompe à eau selon l'invention  FIG. 2 represents a partial three-quarter front view of the main crankcase equipped with a water pump according to the invention;
la figure 3 représente une vue partielle de trois-quarts arrière du carter moteur principal sans le couvercle de pompe  Figure 3 shows a partial rear three-quarter view of the main crankcase without the pump cover
- la figure 4 représente une vue partielle de coté arrière du demi-carter  - Figure 4 shows a partial view of the rear side of the crankcase
- la figure 5 représente une vue de dessus du carter et de la pompe.  - Figure 5 shows a top view of the housing and the pump.
Le bloc moteur (1) comprend un carter principal forme d'un demi-carter droit (2) et d'un demi-carter gauche (3) associés selon une plan de joint (4) correspond dans l'exemple décrit au plan longitudinal vertical de la motocyclette . Ce carter présente de manière connue un logementThe engine block (1) comprises a main housing forming a right half-casing (2) and a left half-casing (3) associated in a joint plane (4) corresponds in the example described in the longitudinal plane vertical motorcycle. This housing has a known way housing
(5) pour recevoir le palier de vilebrequin, un plan de pose(5) to receive the crankshaft bearing, a plane of installation
(6) pour recevoir le cylindre arrière, un logement (7) pour la chaîne de distribution (ou puits de chaîne). (6) for receiving the rear cylinder, a housing (7) for the distribution chain (or chain well).
Optionnellement , le plan de pose du couvercle de pompe peut être décalé en direction de 1 ' extérieur demi-carter droit ( 2 ) .  Optionally, the plane of installation of the pump cover can be shifted towards the outside right half casing (2).
Le demi-carter droit (2) présente une protubérance The right half casing (2) has a protuberance
( 8 ) par rapport au demi-carter gauche ( 3 ) . (8) relative to the left crankcase (3).
Cette protubérance (8) est située à la partie supérieure du demi-carter (2). Elle délimite un volume creux This protuberance (8) is located at the upper part of the half-casing (2). It delimits a hollow volume
(9) correspondant au corps de pompe recevant le rotor (10). (9) corresponding to the pump body receiving the rotor (10).
Ce volume creux ( 9 ) présente une forme générale de volute, avec une partie (11) sensiblement cylindrique prolongée par une extension spirale (12) séparée partiellement par une cloison (13) de la partie cylindrique (11).  This hollow volume (9) has a generally volute shape, with a portion (11) substantially cylindrical extended by a spiral extension (12) partially separated by a partition (13) of the cylindrical portion (11).
Ce volume débouche en direction du demi-carter (3) complémentaire par une surface frontale plane (14) située dans le plan de joint (4). Un couvercle (17) vient refermer le corps de pompe ainsi formé, par vissage sur le plan de joint (4). A cet effet, le demi-carter (2) présente, au niveau de cette surface frontale (14), deux lamages (perçage à fond plan) (15, 16) destinés au centrage du couvercle de pompe (17) par l'intermédiaire de deux douilles de centrages (tubes calibrés complémentaires des lamages).  This volume opens towards the complementary half-casing (3) by a flat front surface (14) located in the joint plane (4). A cover (17) closes the pump body thus formed, by screwing on the joint plane (4). For this purpose, the half-casing (2) has, at this front surface (14), two countersinks (flat-bottom drilling) (15, 16) for centering the pump cover (17) via two centering sleeves (calibrated tubes complementary to counterbores).
Les lamages (15, 16) sont prolongés par des taraudages. Par ailleurs deux taraudages complémentaires (18, 19) sont prévus sur la surface frontale (14). Le couvercle est fixé sur la surface frontale (14) par quatre vis coopérant avec lesdits taraudages.  The countersinks (15, 16) are extended by threads. In addition, two complementary threads (18, 19) are provided on the front surface (14). The lid is fixed on the front surface (14) by four screws cooperating with said threads.
Le demi-carter complémentaire (3) présente un forage (20) perpendiculaire aux plans de joint (6, 21) et parallèle à l'axe des cylindres. Ce forage (20) débouche dans le plan de pose (21) du cylindre avant. A l'autre extrémité, ce forage débouche dans une zone sensiblement annulaire (22) prévue sur le demi-carter complémentaire (3), au voisinage de l'excroissance (14). The complementary half-casing (3) has a bore (20) perpendicular to the joint planes (6, 21) and parallel to the axis of the cylinders. This bore (20) opens into the laying plane (21) of the front cylinder. At the other end, this borehole opens into a substantially annular zone (22) provided on the complementary half-casing (3), in the vicinity of the protrusion (14).
Le couvercle de pompe (17) présente un conduit d'entrée d'eau (23) s 'étendant radialement par rapport au corps de pompe, vers l'avant du moteur, sur la partie supérieure du carter. Il est coudé pour alimenter le rotor avec le liquide de refroidissement provenant du radiateur.  The pump cover (17) has a water inlet duct (23) extending radially with respect to the pump body, towards the front of the engine, on the upper part of the casing. It is bent to feed the rotor with coolant from the radiator.
Le couvercle (17) présente également un bossage (24) recevant une vis de purge.  The cover (17) also has a boss (24) receiving a bleed screw.
Le couvercle (17) présente par ailleurs une protubérance (25) à l'intérieur de laquelle est aménagé un alésage de sortie (27) coaxial au forage (20), pour conduire le liquide de refroidissement depuis le corps de pompe vers le cylindre avant, par l'intermédiaire d'un tube (26) logé dans le forage (20) .  The cover (17) also has a protuberance (25) inside which is arranged an outlet bore (27) coaxial with the bore (20), to conduct the cooling liquid from the pump body to the front cylinder , via a tube (26) housed in the borehole (20).
Ce tube (26) est configuré pour permettre un raccordement étanche de son extrémité amont avec l'alésage de sortie (27), et en aval avec le forage (20). Des joints toriques sont prévus à chacune des extrémités pour assurer l'étanchéité du raccordement.  This tube (26) is configured to allow a tight connection of its upstream end with the outlet bore (27), and downstream with the bore (20). O-rings are provided at each end to seal the connection.
Ce tube est mobile longitudinalement entre une position d'utilisation, où il assure la liaison hydraulique, et une position de démontage dans laquelle elle rentre dans le carter complémentaire ( 3 ) pour permettre le démontage du couvercle (17).  This tube is movable longitudinally between a position of use, where it provides the hydraulic connection, and a disassembly position in which it enters the complementary housing (3) to allow the disassembly of the cover (17).
Une vis (28) assure le verrouillage du tube (26) en position d'utilisation, par coopération avec une gorge annulaire (29). La vis (28) est vissée dans un bossage (30).  A screw (28) ensures the locking of the tube (26) in the use position, by cooperation with an annular groove (29). The screw (28) is screwed into a boss (30).
Le flux de sortie est illustré sur la figure 5. Il se décompose en un flux (31) alimentant le cylindre avant, et un flux (32) alimentant le cylindre arrière.  The output flow is illustrated in Figure 5. It breaks down into a flow (31) feeding the front cylinder, and a flow (32) feeding the rear cylinder.
Ce flux (32) empreinte un forage (34) parallèle à l'axe de la pompe et débouchant sous la protubérance (25) du couvercle (17) de pompe. Ce flux (32) alimente le cylindre arrière par l'intermédiaire un forage (33) prévue dans le premier demi-carter (2). Les deux forages (33, 34) communiquent entre eux. This flow (32) impresses a bore (34) parallel to the axis of the pump and opening under the protuberance (25) of the pump cover (17). This flow (32) feeds the rear cylinder via a bore (33) provided in the first half-casing (2). The two boreholes (33, 34) communicate with each other.
Le plan de pose du couvercle de pompe peut être décalé en direction de l'extérieur du carter (2).  The pump cover installation plane can be shifted towards the outside of the housing (2).

Claims

Revendications claims
1 — Moteur de motocyclette refroidi par eau, comprenant un carter moteur principal à plan de joint vertical (4), comprenant une pompe à eau dont le rotor (10) est entraîné par l'arbre de distribution caractérisé en ce que l'un des demi-carter (2) présente une excroissance (8) définissant une volume creux (9) formant le corps de pompe, et débouchant dans le plan de joint (4) des deux carters, ledit corps de pompe étant fermé par un couvercle (17) comprenant un conduit d'entrée (23) du liquide de refroidissement placé sur le dessus du moteur, le couvercle (17) présentant en outre une configuration débouchant dans une sortie de liquide de refroidissement . 1 - Water-cooled motorcycle engine, comprising a vertical seam main engine casing (4), comprising a water pump whose rotor (10) is driven by the distribution shaft, characterized in that one of the housing half (2) has an outgrowth (8) defining a hollow volume (9) forming the pump body, and opening into the joint plane (4) of the two housings, said pump body being closed by a cover (17). ) comprising an inlet duct (23) of the coolant placed on top of the engine, the cover (17) further having a configuration opening into a coolant outlet.
2 - Moteur de motocyclette refroidi par eau selon la revendication principale caractérisé en ce que le moteur comporte un conduit (33, 34) reliant le corps de la pompe au cylindre arrière.  2 - motor water-cooled motorcycle according to the main claim characterized in that the motor comprises a conduit (33, 34) connecting the body of the pump to the rear cylinder.
3 - Moteur de motocyclette refroidi par eau selon la revendication précédente caractérisé en ce que ledit conduit reliant le corps de pompe au cylindre arrière est constitué par une cavité (33, 34) est formée dans le demi- carter (2) présentant le corps de pompe.  3 - Water-cooled motorcycle engine according to the preceding claim characterized in that said conduit connecting the pump body to the rear cylinder is constituted by a cavity (33, 34) is formed in the half-casing (2) having the body of pump.
4- Moteur de motocyclette refroidi par eau selon la revendication principale caractérisé en ce que le plan vertical passant par l'axe dudit conduit d'entrée (23) est placé entre ledit plan de joint (4) et le plan vertical extérieur dudit demi-carter (2).  4- motor motorcycle water-cooled according to the main claim characterized in that the vertical plane passing through the axis of said inlet duct (23) is placed between said joint plane (4) and the outer vertical plane of said half casing (2).
5 - Moteur de motocyclette refroidi par eau selon la revendication principale caractérisé en ce qu'il comporte en outre un tube (26) débouchant à l'une de ses extrémités dans la sortie de liquide dudit couvercle, et à l'autre extrémité dans le cylindre avant.  5 - Motor water-cooled motorcycle according to the main claim characterized in that it further comprises a tube (26) opening at one of its ends in the liquid outlet of said lid, and at the other end in the front cylinder.
6 - Moteur de motocyclette refroidi par eau selon la revendication précédente caractérisé en ce que ledit tube (26) est mobile entre une position d'utilisation où il assure une conduction étanche entre le corps de pompe et le cylindre avant, et une position rétractée pour le démontage, dans laquelle l'extrémité du tube est écarté de la tête de pompe par coulissement dans ledit conduit. 6 - Water-cooled motorcycle engine according to the preceding claim characterized in that said tube (26) is movable between a use position where it provides a sealed conduction between the pump body and the front cylinder, and a retracted position for disassembly, wherein the end of the tube is moved away from the pump head by sliding in said conduit.
7 - Moteur de motocyclette refroidi par eau selon la revendication précédente caractérisé en ce que ledit tube (26) présente une gorge annulaire (29) coopérant en position d'utilisation avec une vis de blocage (28).  7 - motor motorcycle water-cooled according to the preceding claim characterized in that said tube (26) has an annular groove (29) cooperating in the use position with a locking screw (28).
8 - Moteur de motocyclette refroidi par eau selon l'une quelconque des revendications précédentes caractérisé en ce que ledit moteur est un moteur bicylindre comportant deux cylindres alignés, disposés longitudinalement par rapport à la motocyclette .  8 - water-cooled motorcycle engine according to any one of the preceding claims, characterized in that said engine is a two-cylinder engine comprising two aligned cylinders, arranged longitudinally with respect to the motorcycle.
EP15702534.7A 2014-01-13 2015-01-08 Pump body built into the crankcase of a liquid-cooled engine Active EP3094851B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR1450239A FR3016396A1 (en) 2014-01-13 2014-01-13 PUMP BODY INTEGRATED IN THE CASING OF A LIQUID COOLING ENGINE
FR1454920A FR3016410B1 (en) 2014-01-13 2014-05-30 PUMP BODY INTEGRATED IN THE CASING OF A LIQUID COOLING ENGINE
PCT/FR2015/050028 WO2015104497A1 (en) 2014-01-13 2015-01-08 Pump body built into the crankcase of a liquid-cooled engine

Publications (2)

Publication Number Publication Date
EP3094851A1 true EP3094851A1 (en) 2016-11-23
EP3094851B1 EP3094851B1 (en) 2018-10-24

Family

ID=51417446

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15702534.7A Active EP3094851B1 (en) 2014-01-13 2015-01-08 Pump body built into the crankcase of a liquid-cooled engine

Country Status (5)

Country Link
EP (1) EP3094851B1 (en)
JP (1) JP2017502210A (en)
CN (1) CN106062349A (en)
FR (2) FR3016396A1 (en)
WO (1) WO2015104497A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110475991B (en) * 2017-03-31 2023-01-10 本田技研工业株式会社 Power unit for vehicle

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2526682Y2 (en) * 1988-09-26 1997-02-19 富士重工業株式会社 Oil pump device
JP3156524B2 (en) * 1994-09-29 2001-04-16 スズキ株式会社 Water-cooled engine for motorcycles
JPH1136863A (en) * 1997-07-24 1999-02-09 Yanmar Diesel Engine Co Ltd Cooling mechanism of v-shape engine
JP3731697B2 (en) * 1997-09-03 2006-01-05 本田技研工業株式会社 Cooling device for water-cooled internal combustion engine
JP4302800B2 (en) * 1998-09-12 2009-07-29 本田技研工業株式会社 4-cycle engine lubrication structure
US6109221A (en) * 1999-02-17 2000-08-29 Kohler Co. Engine with integral coolant pump
CN100470040C (en) * 2004-12-17 2009-03-18 重庆宗申技术开发研究有限公司 Crankcase of opposed engine with double cylinders
EP1899591B1 (en) * 2005-07-05 2010-03-31 Fites A 4-stroke, mono-cylinder, liquid-cooled, internal combustion engine, in particular for motorcycles or quads
JP2007218173A (en) * 2006-02-16 2007-08-30 Yamaha Motor Co Ltd Engine
WO2008057015A1 (en) * 2006-11-08 2008-05-15 Husqvarna Aktiebolag Crankcase and internal combustion engine unit
MY165409A (en) * 2009-12-31 2018-03-21 Petroliam Nasional Berhad Engine
AT511074B1 (en) * 2011-06-22 2012-09-15 Avl List Gmbh INTERNAL COMBUSTION ENGINE WITH AT LEAST ONE PENDING PISTON

Also Published As

Publication number Publication date
FR3016396A1 (en) 2015-07-17
FR3016410B1 (en) 2016-01-22
WO2015104497A1 (en) 2015-07-16
EP3094851B1 (en) 2018-10-24
FR3016410A1 (en) 2015-07-17
JP2017502210A (en) 2017-01-19
CN106062349A (en) 2016-10-26

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