FR3012860A1 - ASSEMBLY FORMING A RADIAL PISTON HYDRAULIC MACHINE COMPRISING AN OPTIMIZED CARTER - Google Patents
ASSEMBLY FORMING A RADIAL PISTON HYDRAULIC MACHINE COMPRISING AN OPTIMIZED CARTER Download PDFInfo
- Publication number
- FR3012860A1 FR3012860A1 FR1360768A FR1360768A FR3012860A1 FR 3012860 A1 FR3012860 A1 FR 3012860A1 FR 1360768 A FR1360768 A FR 1360768A FR 1360768 A FR1360768 A FR 1360768A FR 3012860 A1 FR3012860 A1 FR 3012860A1
- Authority
- FR
- France
- Prior art keywords
- housing
- hydraulic machine
- low pressure
- high pressure
- casing
- 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
Links
- 230000002706 hydrostatic effect Effects 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 6
- 229910001018 Cast iron Inorganic materials 0.000 claims description 3
- 229910001208 Crucible steel Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 239000000470 constituent Substances 0.000 description 3
- 238000001914 filtration Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H39/00—Rotary fluid gearing using pumps and motors of the volumetric type, i.e. passing a predetermined volume of fluid per revolution
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H39/00—Rotary fluid gearing using pumps and motors of the volumetric type, i.e. passing a predetermined volume of fluid per revolution
- F16H39/02—Rotary fluid gearing using pumps and motors of the volumetric type, i.e. passing a predetermined volume of fluid per revolution with liquid motors at a distance from liquid pumps
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/34—Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles
- B60K17/356—Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles having fluid or electric motor, for driving one or more wheels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/34—Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles
- B60K17/354—Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles having separate mechanical assemblies for transmitting drive to the front or to the rear wheels or set of wheels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
- F01B13/00—Reciprocating-piston machines or engines with rotating cylinders in order to obtain the reciprocating-piston motion
- F01B13/04—Reciprocating-piston machines or engines with rotating cylinders in order to obtain the reciprocating-piston motion with more than one cylinder
- F01B13/06—Reciprocating-piston machines or engines with rotating cylinders in order to obtain the reciprocating-piston motion with more than one cylinder in star arrangement
- F01B13/061—Reciprocating-piston machines or engines with rotating cylinders in order to obtain the reciprocating-piston motion with more than one cylinder in star arrangement the connection of the pistons with the actuated or actuating element being at the outer ends of the cylinders
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
- F03C1/00—Reciprocating-piston liquid engines
- F03C1/02—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders
- F03C1/04—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinders in star or fan arrangement
- F03C1/0403—Details, component parts specially adapted of such engines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
- F03C1/00—Reciprocating-piston liquid engines
- F03C1/22—Reciprocating-piston liquid engines with movable cylinders or cylinder
- F03C1/223—Reciprocating-piston liquid engines with movable cylinders or cylinder having cylinders in star or fan arrangement, the connection of the pistons with an actuated element being at the inner ends of the cylinders
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
- F04B1/0404—Details or component parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/031—Gearboxes; Mounting gearing therein characterised by covers or lids for gearboxes
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Reciprocating Pumps (AREA)
- Motor Power Transmission Devices (AREA)
- Control Of Fluid Gearings (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
L'invention concerne un ensemble (100) comprenant un carter (110),une machine hydraulique adaptée pour être reliée à un circuit hydraulique, et des composants auxiliaires coopérant avec la machine hydraulique, la machine hydraulique et les composants auxiliaires étant logés dans le carter (110), l'ensemble étant caractérisé en ce que le carter (110) est composé de deux boitiers (112, 114) liés, l'un (112) adapté pour tenir une haute pression et l'autre (114) pour tenir une basse pression et les éléments (427, 426, 421) constitutifs de la machine hydraulique (42) ainsi que les composants auxiliaires opérant à haute pression sont regroupés et placés dans le boitier de carter haute pression (112), tandis que les éléments (420, 425) constitutifs de la machine hydraulique (42) ainsi que les composants auxiliaires opérant à basse pression sont regroupés et placés dans le boitier de carter basse pression (114). L'invention concerne également un véhicule comprenant un tel ensemble.The invention relates to an assembly (100) comprising a housing (110), a hydraulic machine adapted to be connected to a hydraulic circuit, and auxiliary components cooperating with the hydraulic machine, the hydraulic machine and the auxiliary components being housed in the housing. (110), the assembly being characterized in that the housing (110) is composed of two connected boxes (112, 114), one (112) adapted to hold a high pressure and the other (114) to hold a low pressure and the elements (427, 426, 421) constituting the hydraulic machine (42) as well as the auxiliary components operating at high pressure are grouped and placed in the high pressure housing (112), while the elements ( 420, 425) constituting the hydraulic machine (42) as well as auxiliary components operating at low pressure are grouped and placed in the low-pressure housing (114). The invention also relates to a vehicle comprising such an assembly.
Description
DOMAINE DE L'INVENTION La présente invention concerne le domaine des transmissions hydrostatiques, et plus particulièrement des structures de carters pour des machines hydrauliques.FIELD OF THE INVENTION The present invention relates to the field of hydrostatic transmissions, and more particularly crankcase structures for hydraulic machines.
L'invention peut trouver notamment application dans la réalisation d'une assistance hydrostatique dans un véhicule automobile. ETAT DE LA TECHNIQUE La réalisation d'une transmission hydrostatique sur un véhicule automobile nécessite l'installation de divers composants parmi lesquels une ou plusieurs machines hydrauliques pouvant fonctionner en tant que pompe ou en tant que moteur, des systèmes de distribution, de gavage, de filtration, et de stockage d'huile. Il résulte de cette multitude de composants une masse et un encombrement importants, problématiques pour la conception du véhicule. En outre, il est nécessaire de relier ces différents composants, ce qui conduit à une multiplication des flexibles hydrauliques et des connexions électriques, pouvant notamment poser des problèmes d'arrachement des flexibles. Afin de limiter l'encombrement lié aux composants ainsi que leurs connexions, il a déjà été proposé de regrouper certaines fonctions dans un carter commun, comme par exemple la fonction de filtration et de pompage d'huile. La masse de l'ensemble des composants reste cependant importante. PRESENTATION DE L'INVENTION L'invention a pour but de réduire la masse des composants pour la réalisation d'une transmission hydrostatique de véhicule, et de faciliter l'intégration de la transmission hydrostatique au véhicule. A cet égard, l'invention a pour objet un ensemble comprenant : - un carter, - une machine hydraulique adaptée pour être reliée à un circuit hydraulique et - des composants auxiliaires qui coopèrent avec la machine hydraulique, la machine hydraulique et les composants auxiliaires étant logés dans le carter, l'ensemble étant caractérisé en ce que : - le carter est composé de deux boitiers liés, l'un adapté pour tenir une haute pression et l'autre adapté pour tenir une basse pression et - les éléments constitutifs de la machine hydraulique opérant à haute pression ainsi que les composants auxiliaires opérant à haute pression sont regroupés et placés dans le boitier de carter haute pression, tandis que les éléments constitutifs de la machine hydraulique opérant à basse pression ainsi que les composants auxiliaires opérant à basse pression sont regroupés et placés dans le boitier de carter basse pression. Comme on le comprendra à la lecture de la description qui va suivre, l'invention permet d'alléger la masse du carter de l'ensemble dans la mesure où la partie de boitier de carter qui opère à basse pression peut être réalisée notamment en un matériau différent ou avec une épaisseur plus faible que la partie de boitier du carter qui opère à haute pression. L'invention concerne également les véhicules comprenant un ensemble précité monté sur leur châssis. DESCRIPTION DES FIGURES D'autres caractéristiques, buts et avantages de l'invention apparaitront à la lecture de la description détaillée qui va suivre et en regard des dessins annexés donnés à titre d'exemple non limitatif et sur lesquels : - La figure 1 représente schématiquement un circuit hydraulique d'un véhicule comprenant un ensemble conforme à un mode de réalisation de l'invention, - La figure 2 représente une vue en perspective extérieure d'un exemple de réalisation d'un ensemble selon un mode de réalisation de l'invention, - La figure 3 représente une vue schématique en coupe d'un carter d'un ensemble conforme à un mode de réalisation de l'invention et - La figure 4 représente schématiquement le regroupement des fonctions haute pression et des fonctions basse pression dans des parties de boitiers respectivement dédiées conformément à l'invention.The invention can find particular application in the realization of a hydrostatic assistance in a motor vehicle. STATE OF THE ART Carrying out a hydrostatic transmission on a motor vehicle requires the installation of various components, among which one or more hydraulic machines that can function as a pump or as an engine, dispensing systems, feeding systems, filtration, and oil storage. It results from this multitude of components a mass and a large size, problematic for the design of the vehicle. In addition, it is necessary to connect these different components, which leads to a multiplication of hydraulic hoses and electrical connections, which may in particular cause problems of tearing hoses. In order to limit the congestion related to the components as well as their connections, it has already been proposed to group certain functions in a common housing, such as, for example, the filtration and oil pumping function. The mass of all components remains important. PRESENTATION OF THE INVENTION The object of the invention is to reduce the mass of components for producing a hydrostatic transmission of a vehicle, and to facilitate the integration of the hydrostatic transmission with the vehicle. In this regard, the subject of the invention is an assembly comprising: - a housing, - a hydraulic machine adapted to be connected to a hydraulic circuit and - auxiliary components that cooperate with the hydraulic machine, the hydraulic machine and the auxiliary components being housed in the casing, the assembly being characterized in that: - the casing is composed of two connected boxes, one adapted to hold a high pressure and the other adapted to hold a low pressure and - the constituent elements of the hydraulic machine operating at high pressure and the auxiliary components operating at high pressure are grouped together and placed in the high pressure housing, while the components of the hydraulic machine operating at low pressure and the auxiliary components operating at low pressure are grouped and placed in the low pressure housing. As will be understood from reading the description which follows, the invention makes it possible to reduce the mass of the casing of the assembly in that the casing housing part which operates at low pressure can be achieved in particular in a different material or with a lower thickness than the casing housing part which operates at high pressure. The invention also relates to vehicles comprising a aforementioned assembly mounted on their chassis. DESCRIPTION OF THE FIGURES Other characteristics, objects and advantages of the invention will appear on reading the detailed description which follows and with reference to the appended drawings given by way of non-limiting example and in which: FIG. 1 shows schematically a hydraulic circuit of a vehicle comprising an assembly according to one embodiment of the invention, - Figure 2 shows an external perspective view of an embodiment of an assembly according to one embodiment of the invention FIG. 3 represents a diagrammatic sectional view of a housing of an assembly according to one embodiment of the invention and FIG. 4 schematically represents the grouping of high pressure functions and low pressure functions in parts. of boxes respectively dedicated according to the invention.
DESCRIPTION DETAILLEE D'AU MOINS UN MODE DE REALISATION DE L'INVENTION En référence à la figure 1, on a représenté un circuit hydraulique d'un véhicule V. Le véhicule V est avantageusement, mais non limitativement, un véhicule léger tel qu'un véhicule automobile. Le véhicule V comprend un châssis et deux essieux 10, 20, portant chacun deux roues, respectivement 12, 13 et 22, 23. Les deux essieux 10, 20 définissent une direction principale D du châssis du véhicule qui correspond à la direction de déplacement du véhicule. Le véhicule comporte en outre un moteur primaire M, typiquement un moteur thermique, un embrayage 2 et une boîte de vitesse 3, liant le moteur primaire M à l'un des essieux 10, 20 pour assurer son entrainement. Sur la figure 1, le moteur primaire entraine l'essieu avant 10, dit essieu menant, l'essieu arrière 20 étant dit essieu mené. Le véhicule comprend en outre une assistance hydraulique, avantageusement une transmission hydrostatique de puissance depuis l'essieu menant 10 vers l'essieu mené 20. Le véhicule comprend ainsi une première machine hydraulique 40 montée sur le châssis et associée à l'essieu menant 10, et une seconde machine hydraulique 42 montée sur le châssis et associée à l'essieu mené 20. Les deux machines hydrauliques 40, 42 sont reliées entre elles par des conduits hydrauliques 4a, 4b formant un circuit hydraulique 4, et sont adaptées pour fonctionner de manière réversible en tant que pompe ou en tant que moteur hydraulique. Avantageusement, la machine 40 sur l'essieu menant 10 fonctionne en tant que pompe, entrainée par le moteur thermique M par l'intermédiaire de l'embrayage 2 et de la boite de vitesse 3, de manière à générer un débit qui alimente la machine hydraulique 42 qui fonctionne alors en tant que moteur. Le circuit hydraulique 4 comprend en outre un circuit de gavage 43 des machines hydrauliques 40, 42. Ce circuit 43 comprend une pompe de gavage 44 qui prélève l'huile nécessaire pour assurer le gavage du circuit, dans le carter du moteur 40 ou dans un réservoir adapté (lequel réservoir n'est pas représenté sur la figure 1 pour simplifier l'illustration). La pompe de gavage 43 est alimentée par un moteur électrique 49. Sa sortie est reliée par l'intermédiaire d'un filtre 47 à des clapets anti-retours 50 et 52 qui conduisent respectivement aux conduits 4a et 4b.DETAILED DESCRIPTION OF AT LEAST ONE EMBODIMENT OF THE INVENTION With reference to FIG. 1, there is shown a hydraulic circuit of a vehicle V. The vehicle V is advantageously, but not exclusively, a light vehicle such as a motor vehicle. The vehicle V comprises a chassis and two axles 10, 20, each carrying two wheels, respectively 12, 13 and 22, 23. The two axles 10, 20 define a main direction D of the vehicle chassis which corresponds to the direction of travel of the vehicle. vehicle. The vehicle further comprises a primary motor M, typically a heat engine, a clutch 2 and a gearbox 3, linking the primary motor M to one of the axles 10, 20 to ensure its training. In Figure 1, the primary motor drives the front axle 10, said driving axle, the rear axle 20 being said driven axle. The vehicle further comprises a hydraulic assistance, advantageously a hydrostatic transmission of power from the driving axle 10 to the driven axle 20. The vehicle thus comprises a first hydraulic machine 40 mounted on the chassis and associated with the driving axle 10, and a second hydraulic machine 42 mounted on the chassis and associated with the driven axle 20. The two hydraulic machines 40, 42 are interconnected by hydraulic conduits 4a, 4b forming a hydraulic circuit 4, and are adapted to operate in a controlled manner. reversible as a pump or as a hydraulic motor. Advantageously, the machine 40 on the driving axle 10 operates as a pump, driven by the engine M through the clutch 2 and the gearbox 3, so as to generate a flow that feeds the machine hydraulic 42 which then works as a motor. The hydraulic circuit 4 further comprises a booster circuit 43 of the hydraulic machines 40, 42. This circuit 43 comprises a booster pump 44 which draws the necessary oil to feed the circuit, in the housing of the engine 40 or in a adapted tank (which tank is not shown in Figure 1 to simplify the illustration). The booster pump 43 is powered by an electric motor 49. Its output is connected via a filter 47 to non-return valves 50 and 52 which lead respectively to the ducts 4a and 4b.
Des limiteurs de pression 51, 53 sont placés respectivement en parallèle des clapets 50 et 52. De même un limiteur de pression 54 est placé entre la sortie du filtre 47 et l'entrée de la pompe de gavage 44. Le circuit hydraulique 4 peut également comprendre une valve 45 pilotée par une commande 46, adaptée pour relier sélectivement au carter du moteur 40 formant réservoir, les conduits 4a et 4b reliant entre elles les machines 40 et 42, pour assurer une fonction de vidange du circuit. On aperçoit également sur la figure 1 des différentiels 14 et 24 qui équipent respectivement l'essieu avant 10 et l'essieu arrière 20.Pressure limiters 51, 53 are respectively placed in parallel with the valves 50 and 52. Likewise, a pressure limiter 54 is placed between the outlet of the filter 47 and the inlet of the booster pump 44. The hydraulic circuit 4 can also comprise a valve 45 controlled by a control 46, adapted to connect selectively to the housing of the engine 40 forming a reservoir, the ducts 4a and 4b interconnecting the machines 40 and 42, to provide a drain function of the circuit. Also shown in Figure 1 differentials 14 and 24 which respectively equip the front axle 10 and the rear axle 20.
En référence à la figure 2, on a représenté un ensemble 100 selon un mode de réalisation de l'invention, adapté pour être monté fixe sur un véhicule, par exemple en étant fixé sur le châssis dudit véhicule, et qui comprend une machine hydraulique, par exemple l'une des machines hydrauliques 40, 42. Dans la suite de la description, on considère que l'ensemble 100 comprend la machine 42 de l'essieu mené 20. L'ensemble 100 comprend un carter 110 qui loge la machine hydraulique 42, ainsi que, outre le différentiel 14, la pompe de gavage 44, le moteur électrique 49, le filtre 47, la valve 45, les deux clapets anti-retour 50 et 52 et les limiteurs de pression 51, 53 et 54.Referring to Figure 2, there is shown a set 100 according to one embodiment of the invention, adapted to be fixedly mounted on a vehicle, for example by being fixed on the frame of said vehicle, and which comprises a hydraulic machine, for example one of the hydraulic machines 40, 42. In the following description, it is considered that the assembly 100 comprises the machine 42 of the driven axle 20. The assembly 100 comprises a housing 110 which houses the hydraulic machine 42, as well as, in addition to the differential 14, the booster pump 44, the electric motor 49, the filter 47, the valve 45, the two non-return valves 50 and 52 and the pressure limiters 51, 53 and 54.
L'invention n'est pas limitée à cet exemple particulier. Elle s'applique à de nombreuses autres variantes d'intégration dans le carter 110 de composants auxiliaires coopérant avec la machine hydraulique 42. De préférence dans le cadre de l'invention les machines hydrauliques 40 et 42 sont respectivement une pompe et un moteur hydrauliques à pistons radiaux.The invention is not limited to this particular example. It applies to many other variants of integration in the housing 110 of auxiliary components cooperating with the hydraulic machine 42. Preferably in the context of the invention the hydraulic machines 40 and 42 are respectively a pump and a hydraulic motor. radial pistons.
Le demandeur a déjà proposé de nombreux modèles de moteurs et pompes hydrauliques à pistons radiaux. Ainsi de préférence dans le cadre de l'invention, comme illustré sur la figure 3, la machine hydraulique à pistons radiaux formant le moteur 42 comprend, dans la chambre d'un carter, un transducteur hydraulique/mécanique composé : - d'une came multilobes 420, formée par exemple sur la surface interne d'un élément du carter, - d'un bloc cylindres 422 monté à rotation relative dans le carter, - d'un arbre 424 lié à rotation au bloc cylindres 422, - de pistons 423 guidés à coulissement radial dans des cylindres respectifs du bloc cylindres 422 et prenant appui sur les lobes de la came 420, et - d'un distributeur 426 adapté pour appliquer successivement et de manière contrôlée sur les pistons 423 un fluide provenant de la pompe 40, de sorte que l'appui successif des pistons 423 sur les lobes de la came 420 entraîne la rotation relative du bloc cylindres 422 et des éléments qui lui sont liés par rapport au carter. Sur la figure 3 on a référencé 427 un couvercle du carter qui obture le logement recevant le distributeur 426 et on a référencé 421 une partie radialement interne du bloc cylindres 422, dénommée hydrocouple, qui reçoit le fluide en provenance du distributeur 426 et assure l'alimentation successive des cylindres logeant les pistons 423. Un tel système étant réversible, la machine hydraulique formant la pompe 40 est de préférence de structure identique au moteur 42 qui vient d'être décrit. C'est-à-dire que l'arbre 424 ou un élément qui lui est lié mécaniquement de la pompe 40, étant entrainé en rotation par le moteur thermique M par l'intermédiaire de la boite de vitesse 3, la coopération des pistons 423 et de la came multilobes 420 de la pompe 40 génère des pressions successives dans les cylindres, de sorte que le transducteur hydraulique/mécanique composant la machine 40 constitue alors non pas un moteur mais une pompe hydraulique.The Applicant has already proposed numerous models of hydraulic motors and pumps with radial pistons. Thus preferably in the context of the invention, as illustrated in FIG. 3, the radial piston hydraulic machine forming the motor 42 comprises, in the chamber of a housing, a hydraulic / mechanical transducer composed of: - a cam multilobe 420, formed for example on the inner surface of a housing element, - a cylinder block 422 mounted relative rotation in the housing, - a shaft 424 rotatably connected to the cylinder block 422, - pistons 423 radial sliding guides in respective cylinders of the cylinder block 422 and resting on the lobes of the cam 420, and - a distributor 426 adapted to apply successively and in a controlled manner to the pistons 423 a fluid coming from the pump 40, so that the successive support of the pistons 423 on the lobes of the cam 420 causes the relative rotation of the cylinder block 422 and elements which are connected to it relative to the housing. In FIG. 3 there is referenced 427 a cover of the housing which closes the housing receiving the distributor 426 and 421 is referenced a radially inner portion of the cylinder block 422, called hydrocouple, which receives the fluid from the distributor 426 and ensures the successive supply of the cylinders housing the pistons 423. Such a system being reversible, the hydraulic machine forming the pump 40 is preferably of identical structure to the motor 42 which has just been described. That is to say that the shaft 424 or an element which is mechanically connected to it with the pump 40, being driven in rotation by the heat engine M via the gearbox 3, the cooperation of the pistons 423 and the multilobe cam 420 of the pump 40 generates successive pressures in the cylinders, so that the hydraulic / mechanical transducer component machine 40 is then not a motor but a hydraulic pump.
L'homme de l'art comprendra que certains éléments constitutifs du moteur 42 sont soumis à une haute pression, tandis que certains autres éléments constitutifs du même moteur 42 sont soumis à une basse pression. En particulier le logement fermé par le couvercle 427 et qui reçoit le distributeur 426, ainsi que le distributeur 426 et l'hydrocouple 421, sont placés sous la haute pression générée par la pompe 40 lorsque celle-ci est entrainée. En revanche par exemple la partie du moteur 42 formant palier 425 de rotation pour l'arbre 424 ainsi que la came 420 sont soumis à une basse pression (fonction de lubrification). A titre d'exemple non limitatif, la pression dite « haute » à laquelle le distributeur et l'hydrocouple sont soumis est comprise entre 300 et 500 bars, avantageusement comprise entre 300 et 450 bars, et de préférence de l'ordre de 400 bars. La pression dite « basse » est quant à elle comprise entre 5 et 30 bars, de préférence de l'ordre de 9 bars.Those skilled in the art will understand that certain constituent elements of the engine 42 are subjected to a high pressure, while certain other constituent elements of the same motor 42 are subjected to a low pressure. In particular the housing closed by the cover 427 and which receives the distributor 426, as well as the distributor 426 and the hydrocouple 421, are placed under the high pressure generated by the pump 40 when it is driven. On the other hand, for example, the part of the motor 42 forming a bearing 425 for rotation for the shaft 424 as well as the cam 420 are subjected to a low pressure (lubrication function). By way of non-limiting example, the so-called "high" pressure at which the distributor and the hydrocouple are subjected is between 300 and 500 bar, advantageously between 300 and 450 bar, and preferably of the order of 400 bar. . The so-called "low" pressure is for its part between 5 and 30 bars, preferably of the order of 9 bars.
Plus précisément selon l'invention, le carter 110 est composé de deux boitiers 112 et 114 liés entre eux. Le carter 112 est adapté pour tenir une haute pression. L'autre carter 114 est adapté pour tenir une basse pression. Par ailleurs les éléments, par exemple 427, 426 et 421, constitutifs de la machine hydraulique 42 opérant à haute pression, ainsi que les composants auxiliaires, par exemple 45, 50, 51, 52, et 53, opérant à haute pression, sont regroupés et placés dans le boitier 112 de carter haute pression, tandis que les éléments, par exemple 420, constitutifs de la machine hydraulique 42 opérant à basse pression, ainsi que les composants auxiliaires, par exemple 44, 47, 49 et 54 opérant à basse pression, sont regroupés et placés dans le boitier 114 de carter basse pression. Cette dissociation entre fonctions opérant à haute pression et fonctions opérant à basse pression et regroupement de ces deux catégories de fonctions dans des boitiers respectifs 112 et 114 adaptés, est schématisée sur la figure 4 15 annexée. On aperçoit en particulier sur la figure 2 le boitier du moteur électrique 49 entrainant la pompe de gavage 44 et le boitier du filtre 47 portés par l'élément de boitier 114. Selon un premier mode de réalisation, les deux boitiers de carter 112 et 114 20 sont venus de matière, c'est-à-dire qu'ils sont réalisés par fabrication sous forme d'un élément commun monobloc de carter. Cependant dans le cadre de l'invention, le boitier de carter 114 soumis à une basse pression est réalisé avec une épaisseur plus faible que le boitier de carter 112. Ainsi l'invention permet d'obtenir un carter 110 plus léger que selon l'état de la technique. 25 Ainsi par exemple, pour deux boitiers de carter réalisés en fonte, l'épaisseur du boitier de carter 112 peut être de l'ordre de 15 mm, tandis que l'épaisseur du boitier 114 est de l'ordre de 5 mm. Selon un deuxième mode de réalisation, les deux boitiers de carter 112 et 114 sont réalisés sous forme de deux boitiers distincts, initialement séparés, 30 d'épaisseur respectivement adaptée à la haute pression et à la basse pression comme indiqué précédemment pour le premier mode de réalisation, et fixés en position relative fonctionnelle à l'aide de tous moyens appropriés, par exemple par vissage ou boulonnage, comme illustré en 115 sur la figure 2.More specifically according to the invention, the housing 110 is composed of two boxes 112 and 114 connected to each other. The housing 112 is adapted to hold a high pressure. The other housing 114 is adapted to hold a low pressure. Furthermore the elements, for example 427, 426 and 421, constituting the hydraulic machine 42 operating at high pressure, and the auxiliary components, for example 45, 50, 51, 52, and 53, operating at high pressure, are grouped together. and placed in the casing 112 high pressure housing, while the elements, for example 420, constituting the hydraulic machine 42 operating at low pressure, and the auxiliary components, for example 44, 47, 49 and 54 operating at low pressure , are grouped and placed in the housing 114 low pressure housing. This dissociation between functions operating at high pressure and functions operating at low pressure and grouping these two categories of functions in respective housings 112 and 114 adapted, is shown schematically in Figure 4 15 attached. In particular, FIG. 2 shows the housing of the electric motor 49 driving the booster pump 44 and the filter housing 47 carried by the housing element 114. According to a first embodiment, the two casing housings 112 and 114 20 come from material, that is to say that they are made by manufacturing in the form of a common piece of housing unit. However, in the context of the invention, the casing housing 114 subjected to a low pressure is made with a smaller thickness than the casing housing 112. Thus, the invention makes it possible to obtain a casing 110 that is lighter than according to the invention. state of the art. For example, for two housing housings made of cast iron, the thickness of the casing housing 112 may be of the order of 15 mm, while the thickness of the housing 114 is of the order of 5 mm. According to a second embodiment, the two casing housings 112 and 114 are made in the form of two separate casings, initially separated, of thickness respectively adapted to the high pressure and to the low pressure as indicated previously for the first embodiment of FIG. embodiment, and fixed in functional relative position by any suitable means, for example by screwing or bolting, as shown in 115 in Figure 2.
Dans le cadre du deuxième mode de réalisation, les deux boitiers de carter 112 et 114 peuvent être réalisés dans un matériau identique. Ils sont cependant de préférence réalisés en des matériaux différents choisis pour supporter respectivement une haute pression et une basse pression.In the context of the second embodiment, the two housing housings 112 and 114 may be made of an identical material. However, they are preferably made of different materials chosen to support respectively a high pressure and a low pressure.
Par exemple le boitier de carter 112 peut être réalisé en fonte ou en acier, tandis que le boitier de carter 114 est réalisé en aluminium. Les épaisseurs des boitiers 112 et 114 sont adaptées en fonction des matériaux choisis et des pressions fonctionnelles. Bien entendu la présente invention n'est pas limitée aux modes de réalisation qui viennent d'être décrits, mais s'étend à toutes variantes conformes à son esprit.For example the casing housing 112 may be made of cast iron or steel, while the casing housing 114 is made of aluminum. The thicknesses of the housings 112 and 114 are adapted according to the chosen materials and the functional pressures. Naturally, the present invention is not limited to the embodiments that have just been described, but extends to all variants that conform to its spirit.
Claims (11)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1360768A FR3012860B1 (en) | 2013-11-04 | 2013-11-04 | ASSEMBLY FORMING A RADIAL PISTON HYDRAULIC MACHINE COMPRISING AN OPTIMIZED CARTER |
| RU2014143733A RU2667436C2 (en) | 2013-11-04 | 2014-10-30 | Assembly of radial piston hydraulic machine comprising optimised housing |
| BR102014027462A BR102014027462A2 (en) | 2013-11-04 | 2014-11-03 | hydraulic circuit, assembly and vehicle with a hydraulic circuit |
| CN201410609840.8A CN104613155B (en) | 2013-11-04 | 2014-11-03 | Form the component for the radial piston hydraulic machine for including optimization shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1360768A FR3012860B1 (en) | 2013-11-04 | 2013-11-04 | ASSEMBLY FORMING A RADIAL PISTON HYDRAULIC MACHINE COMPRISING AN OPTIMIZED CARTER |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR3012860A1 true FR3012860A1 (en) | 2015-05-08 |
| FR3012860B1 FR3012860B1 (en) | 2017-06-23 |
Family
ID=50069121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR1360768A Active FR3012860B1 (en) | 2013-11-04 | 2013-11-04 | ASSEMBLY FORMING A RADIAL PISTON HYDRAULIC MACHINE COMPRISING AN OPTIMIZED CARTER |
Country Status (4)
| Country | Link |
|---|---|
| CN (1) | CN104613155B (en) |
| BR (1) | BR102014027462A2 (en) |
| FR (1) | FR3012860B1 (en) |
| RU (1) | RU2667436C2 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1399596A (en) * | 1971-06-12 | 1975-07-02 | Mactaggart Scott | Multicylinder hydraulic motors |
| WO1999017021A1 (en) * | 1997-09-29 | 1999-04-08 | S.A.I. Societa' Apparecchiature Idrauliche S.P.A. | Hydraulic machine with radial pistons and variable displacement |
| FR2822199A1 (en) * | 2001-03-15 | 2002-09-20 | Nk System Nv | Hydraulic piston pump comprises body, drive shaft and eccentric, radial pistons coupled to eccentric translate in chambers inside body and distributor with fluid inlet and outlet manages fluid flow in chambers |
| FR2913466A1 (en) * | 2007-03-06 | 2008-09-12 | Poclain Hydraulics Ind Soc Par | HYDRAULIC MOTOR WITH RADIAL PISTON WHICH CAN FORM HYDRAULIC STARTER. |
| DE102010031445A1 (en) * | 2010-07-16 | 2012-01-19 | Robert Bosch Gmbh | High pressure pump for fuel injector of internal combustion engine, has pump element, where pump piston is guided in hole of housing section through stroke movement |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU941667A1 (en) * | 1980-03-14 | 1982-07-07 | Московский Машиностроительный Завод Им.М.И.Калинина | Axial-piston hydraulic machine and method of manufacturing its case |
| JP4660897B2 (en) * | 2000-08-11 | 2011-03-30 | アイシン・エィ・ダブリュ株式会社 | Automatic transmission case |
| CN2854218Y (en) * | 2005-12-12 | 2007-01-03 | 田书常 | Dynamic hydraulic driving device of loader |
-
2013
- 2013-11-04 FR FR1360768A patent/FR3012860B1/en active Active
-
2014
- 2014-10-30 RU RU2014143733A patent/RU2667436C2/en active
- 2014-11-03 CN CN201410609840.8A patent/CN104613155B/en not_active Expired - Fee Related
- 2014-11-03 BR BR102014027462A patent/BR102014027462A2/en active Search and Examination
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1399596A (en) * | 1971-06-12 | 1975-07-02 | Mactaggart Scott | Multicylinder hydraulic motors |
| WO1999017021A1 (en) * | 1997-09-29 | 1999-04-08 | S.A.I. Societa' Apparecchiature Idrauliche S.P.A. | Hydraulic machine with radial pistons and variable displacement |
| FR2822199A1 (en) * | 2001-03-15 | 2002-09-20 | Nk System Nv | Hydraulic piston pump comprises body, drive shaft and eccentric, radial pistons coupled to eccentric translate in chambers inside body and distributor with fluid inlet and outlet manages fluid flow in chambers |
| FR2913466A1 (en) * | 2007-03-06 | 2008-09-12 | Poclain Hydraulics Ind Soc Par | HYDRAULIC MOTOR WITH RADIAL PISTON WHICH CAN FORM HYDRAULIC STARTER. |
| DE102010031445A1 (en) * | 2010-07-16 | 2012-01-19 | Robert Bosch Gmbh | High pressure pump for fuel injector of internal combustion engine, has pump element, where pump piston is guided in hole of housing section through stroke movement |
Also Published As
| Publication number | Publication date |
|---|---|
| RU2667436C2 (en) | 2018-09-19 |
| CN104613155A (en) | 2015-05-13 |
| RU2014143733A3 (en) | 2018-04-28 |
| BR102014027462A2 (en) | 2016-06-07 |
| RU2014143733A (en) | 2016-05-27 |
| CN104613155B (en) | 2018-11-02 |
| FR3012860B1 (en) | 2017-06-23 |
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