EP3094851B1 - Pump body built into the crankcase of a liquid-cooled engine - Google Patents
Pump body built into the crankcase of a liquid-cooled engine Download PDFInfo
- Publication number
- EP3094851B1 EP3094851B1 EP15702534.7A EP15702534A EP3094851B1 EP 3094851 B1 EP3094851 B1 EP 3094851B1 EP 15702534 A EP15702534 A EP 15702534A EP 3094851 B1 EP3094851 B1 EP 3094851B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- engine
- pump body
- motorcycle
- pump
- cylinder
- 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.)
- Active
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000002826 coolant Substances 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 3
- 230000000295 complement effect Effects 0.000 description 9
- 238000001816 cooling Methods 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
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
Description
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.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.
On connaît par exemple dans l'état de la technique la solution mise en oeuvre 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 used 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. Un exemple de moteur de motocyclette selon le préambule de la revendication 1 est donné par
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.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.
Afin de remédier à ces inconvénients, la présente invention concerne, selon son acception la plus générale, un moteur bicylindre de motocyclette refroidi par eau, comprenant deux demi-carters complémentaires par rapport à un plan de joint vertical, dont un carter moteur principal à plan de joint vertical, comprenant une pompe à eau dont le rotor est entraîné par l'arbre de distribution. Selon l'invention, l'un des demi-carters présente une excroissance définissant un volume creux formant le corps de pompe, et débouchant en direction du demi-carter complémentaire par une surface frontale plane située dans le plan de joint 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.In order to remedy these drawbacks, the present invention relates, in its most general sense, to a water-cooled motorcycle twin-cylinder engine comprising two complementary half-crankcases with respect to a vertical joint plane, including a main engine crankcase. vertical seal, comprising a water pump whose rotor is driven by the distribution shaft. According to the invention, one of the half-casings has a protuberance defining a hollow volume forming the pump body, and opening towards the complementary half-casing by a flat front surface located in the joint plane of the two casings, said pump body being closed by a cover comprising a coolant inlet duct placed on the top of the engine, the cover further having a configuration opening into a coolant outlet.
De préférence, le moteur comporte un conduit reliant le corps de la pompe au cylindre arrière.Preferably, the motor comprises a conduit connecting the body of the pump to the rear cylinder.
Avantageusement, le conduit reliant reliant le corps de la pompe au cylindre arrière est constitué par une cavité formée dans le demi-carter (2) présentant le corps de pompe.Advantageously, the connecting conduit connecting the body of the pump to the rear cylinder is constituted by a cavity formed in the half-casing (2) having the pump body.
Selon une autre caractéristique, 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.According to another characteristic, 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 said lid, and at the other end in 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.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.
Avantageusement, ledit tube présente une gorge annulaire coopérant en position d'utilisation avec une vis de blocage.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.
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 :
- la
figure 1 représente une vue partielle de trois-quarts arrière du carter moteur principal équipé d'une pompe à eau selon l'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 - la
figure 3 représente une vue partielle de trois-quarts arrière du carter moteur principal sans le couvercle de pompe - la
figure 4 représente une vue partielle de coté arrière du demi-carter - la
figure 5 représente une vue de dessus du carter et de la pompe.
- the
figure 1 represents a partial rear three-quarter view of the main crankcase equipped with a water pump according to the invention - the
figure 2 represents a partial three-quarter front view of the main crankcase equipped with a water pump according to the invention - the
figure 3 represents a partial rear three-quarter view of the main crankcase without the pump cover - the
figure 4 represents a partial view of the rear side of the crankcase - the
figure 5 represents 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.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.
Ce carter présente de manière connue un logement (5) pour recevoir le palier de vilebrequin, un plan de pose (6) pour recevoir le cylindre arrière, un logement (7) pour la chaîne de distribution (ou puits de chaîne).This housing has in known manner a housing (5) for receiving the crankshaft bearing, a laying plane (6) for receiving the rear cylinder, a housing (7) for the distribution chain (or chain well).
Le demi-carter droit (2) présente une protubérance (8) par rapport au demi-carter gauche (3).The right crankcase (2) has a protrusion (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 (9) correspondant au corps de pompe recevant le rotor (10).This protuberance (8) is located at the upper part of the half-casing (2). It delimits a hollow volume (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 séparée partiellement par une cloison 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 partially separated by a partition 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 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) furthermore has a protuberance (25) inside which is arranged an outlet bore coaxial with the bore (20), for conducting the cooling liquid from the pump body to the front cylinder, through the intermediate of 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, 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 output bore, 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
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.
Claims (9)
- Water-cooled motorcycle engine, comprising two case halves matching each other in relation to a vertical parting line, including a main engine case with a vertical parting line (4), comprising a water pump, wherein one of the case halves (2) features a protrusion (8) defining a hollow volume (9) forming the pump body, said pump body being closed by a cover (17) comprising a coolant inlet duct (23) positioned on the top of the engine, with the cover (17) furthermore having a configuration emerging in a coolant outlet, characterised in that the engine is twin-cylinder, in that the rotor (10) of the water pump is driven by the distributor shaft and that the hollow volume (9) forming the pump body opens out in the direction of the matching case half by a flat front surface located in the parting line (4) of both cases.
- Water-cooled motorcycle engine according to claim 1, characterised in that the vertical parting line passing through the axis of said inlet duct (23) is positioned between said parting line (4) and the external vertical plane of said case half (2).
- Motorcycle comprising a water-cooled motorcycle engine according to claim 1.
- Motorcycle according to claim 3, characterised in that the engine comprises a duct (33, 34) connecting the pump body to the rear cylinder.
- Motorcycle according to the preceding claim, characterised in that said duct connecting the pump body to the rear cylinder consists of a cavity (33, 34) formed in the casing half (2) having the pump body.
- Motorcycle according to claim 3, characterised in that the engine furthermore comprises a tube (26), one of the ends of which emerges in the liquid outlet of said cover and the other end in the forward cylinder.
- Motorcycle according to the preceding claim, characterised in that said tube (26) is movable between a position of use in which it provides sealed conduction between the pump body and the forward cylinder and a retracted position for dismantling, in which the tube end is moved apart from the pump head by sliding in said duct.
- Motorcycle according to the preceding claim, characterised in that said tube (26) features an annular groove (29) interacting in the position of use with a lock screw (28).
- Motorcycle according to any one of the preceding claims, characterised in that said engine is a twin-cylinder engine having two aligned cylinders, arranged longitudinally in relation to the motorcycle.
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 EP3094851A1 (en) | 2016-11-23 |
| EP3094851B1 true 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)
| 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)
| 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 |
| ATE462882T1 (en) * | 2005-07-05 | 2010-04-15 | Fites | LIQUID-COOLED 4-STROKE MONOCYLINDER COMBUSTION ENGINE, ESPECIALLY FOR MOTORCYCLES OR QUADS |
| JP2007218173A (en) * | 2006-02-16 | 2007-08-30 | Yamaha Motor Co Ltd | Engine |
| EP2079919B1 (en) * | 2006-11-08 | 2019-01-16 | Husqvarna AB | 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 |
-
2014
- 2014-01-13 FR FR1450239A patent/FR3016396A1/en active Pending
- 2014-05-30 FR FR1454920A patent/FR3016410B1/en active Active
-
2015
- 2015-01-08 WO PCT/FR2015/050028 patent/WO2015104497A1/en active Application Filing
- 2015-01-08 CN CN201580008693.1A patent/CN106062349A/en active Pending
- 2015-01-08 JP JP2016563265A patent/JP2017502210A/en active Pending
- 2015-01-08 EP EP15702534.7A patent/EP3094851B1/en active Active
Non-Patent Citations (1)
| Title |
|---|
| None * |
Also Published As
| Publication number | Publication date |
|---|---|
| FR3016396A1 (en) | 2015-07-17 |
| CN106062349A (en) | 2016-10-26 |
| WO2015104497A1 (en) | 2015-07-16 |
| JP2017502210A (en) | 2017-01-19 |
| EP3094851A1 (en) | 2016-11-23 |
| FR3016410B1 (en) | 2016-01-22 |
| FR3016410A1 (en) | 2015-07-17 |
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