EP1401691A1 - Hydraulic tank and a brake system comprising one such tank - Google Patents

Hydraulic tank and a brake system comprising one such tank

Info

Publication number
EP1401691A1
EP1401691A1 EP02751270A EP02751270A EP1401691A1 EP 1401691 A1 EP1401691 A1 EP 1401691A1 EP 02751270 A EP02751270 A EP 02751270A EP 02751270 A EP02751270 A EP 02751270A EP 1401691 A1 EP1401691 A1 EP 1401691A1
Authority
EP
European Patent Office
Prior art keywords
sleeve
diameter
tank
master cylinder
connection means
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP02751270A
Other languages
German (de)
French (fr)
Inventor
Régis PORCHET
Emmanuelle Fraisse
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1401691A1 publication Critical patent/EP1401691A1/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
    • B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
    • B60T11/26—Reservoirs

Definitions

  • Hydraulic reservoir, braking device comprising such a reservoir and method of mounting said reservoir
  • the present invention relates mainly to a hydraulic reservoir, in particular a brake fluid reservoir, a braking device comprising such a reservoir and a method of mounting such a reservoir.
  • the hydraulic tanks used for the braking devices are generally formed in one piece comprising a filling orifice and at least one flow orifice, the filling orifice and the flow orifice possibly being the same.
  • This type of reservoir is fixed on a master cylinder, in particular a tandem master cylinder allowing the distribution of brake fluid to the wheels of the vehicle, the reservoir feeds, advantageously independently, a first and a second hydraulic circuit.
  • the new braking devices include anti-lock braking systems, dynamic vehicle control systems which require a large amount of brake fluid for their operation, and therefore large brake fluid reservoirs, which poses problems of space during assembly.
  • one-piece tanks are supplied to car manufacturers mounted on the master cylinders.
  • the mounting of the master cylinder fitted with the reservoir becomes more and more complex.
  • hydraulic tanks comprising a first small volume tank fixed to the master cylinder and a second large capacity tank connected to the first tank by a pipe, the second tank being placed in an accessible part of the engine compartment to allow it to be filled. and visual check of the brake fluid level.
  • This provides the greatest capacity of brake fluid in a part of the engine compartment with more space.
  • This type of tank also poses problems when mounting the pipe connecting the two tanks due to the lack of accessibility of the first tank fixed to the master cylinder.
  • the upper part of the reservoir and the filling opening must be easily accessible.
  • a reservoir according to the present invention comprising first and second complementary rigid parts forming a rigid monobloc reservoir, the second part of which is delivered mounted on the master cylinder.
  • a reservoir comprising two parts, a first part provided with an inlet orifice and an outlet orifice and a second part comprising an inlet orifice and at least one outlet orifice, the outlet orifice of the first part cooperating with the inlet orifice of the second part in order to form a rigid one-piece hermetic reservoir, the second part being delivered mounted on the master cylinder.
  • the present invention advantageously makes it possible to provide a reservoir whose assembly does not require special tools.
  • the present invention therefore relates to a hydraulic fluid reservoir comprising first and second rigid parts defining first and second volumes, the first part being provided in its upper part with an inlet orifice provided with a means shutter, an outlet orifice and first connection means capable of cooperating with second means for connecting the second part, the second part being provided in its lower part with an inlet orifice, at least one output port, and • second means of connection, said reservoir also comprising sealing means cooperating with the connecting means characterized in that the fastening of the first part on the second part through connection means form a rigid monobloc tank.
  • the present invention also relates to a reservoir characterized in that the first means for connecting the first part comprises a first sleeve of smaller diameter bordering the outlet orifice of the first part, with an internal diameter equal to the diameter of the outlet opening and extending towards the inside of the first part and a second sleeve of larger diameter, with an inside diameter greater than the diameter of the opening outlet extending towards the outside of the first part and in that the second connection means of the second part comprise a first sleeve of smaller diameter, of outside diameter equal to the inside diameter of the first sleeve of smaller diameter of the first part, bordering the inlet orifice of the second part and extending towards the outside of said second part and a second sleeve of larger diameter, of outside diameter equal to the inside diameter of the second sleeve of larger diameter of the first piece, surrounding the smaller diameter sleeve of the second piece.
  • the present invention also relates to a reservoir characterized in that the second sleeve of larger diameter of the second part is connected by its outer periphery to the first sleeve of smaller diameter of the second part along a generatrix of said first and second sleeves.
  • the present invention also relates to a reservoir characterized in that the second sleeve of larger diameter of the second part has the shape of a ring of large width surrounding the first sleeve of smaller diameter of the second part.
  • the present invention also relates to a tank characterized in that said first and second sleeves of the first part have come in one piece with the first piece and in that the first and second sleeves of the second piece have come in one piece with the second room.
  • the present invention also relates to a tank characterized in that the first part is connected to the second part by snap-fastening.
  • the present invention also relates to a tank characterized in that the first and the second parts are snapped to each other and form a hermetic tank except at the locations of the filling and outlet orifices.
  • the present invention also relates to a tank characterized in that the first and second parts are made of transparent plastic.
  • the present invention also relates to a braking device comprising a master cylinder characterized in that the second part is mounted on said master cylinder.
  • the present invention also relates to a braking device characterized in that it comprises the reservoir according to the present invention.
  • the present invention also relates to a method of mounting in a vehicle engine compartment, characterized in that it comprises inter alia:
  • the present invention also relates to an assembly method characterized in that it also comprises, after the first assembly step, the step of unhooking the first part of the braking device
  • Figure 1 is a cross-sectional view of a first embodiment of a tank in two parts before mounting according to the present invention
  • Figure 2 is a cross-sectional view of a second embodiment of a tank before mounting according to the present invention and of a master cylinder before final mounting of the tank on the master cylinder.
  • Figure 3 is a cross-sectional view of the reservoir-master cylinder assembly of Figure 2 after final assembly.
  • a tank R comprising a first part 1 defining a first volume 2 and a second part 3 defining a second volume 4.
  • the part 1 has in its upper part an orifice filling 5 and in its lower part a flow orifice 6, the part 1 being rigid and hermetic except at the level of orifices 5, 6.
  • the filling orifice is extended towards the outside by a sleeve 7 made integrally with the piece 1, the sleeve 7 being capable of cooperating with a shutter means (not shown), for example a plug, advantageously secured by screwing on the outer periphery of the sleeve 7.
  • the piece 1 advantageously has in its upper part a very small orifice diameter (not shown) allowing the air contained in the volume 2 to be brought to atmospheric pressure in order to avoid a phenomenon of depression hindering the flow of the liquid, the vent opening is advantageously made in the shutter means of the filling orifice 5.
  • the part 1 also comprises in its lower part connection means 10 capable of cooperating with connection means of the second part 3.
  • connection means 10 comprise a first sleeve 9 of smaller diameter surrounding the orifice 6 and of internal diameter equal to the diameter of the orifice 6 and of axis X extending towards the interior of the part 1 in volume 2 and a second sleeve 11 of larger diameter surrounding the orifice 6 with an inner diameter greater than the diameter of the orifice 6, extending towards the outside of the first part 1 and of axis parallel to the axis X, the sleeve of smaller diameter 9 and the sleeve of larger diameter 11 having come into material with the part 1.
  • the lower wall of the part 1 is advantageously inclined in the direction of the flow orifice 6 .
  • the part 1 advantageously comprises means for hooking (not shown) to a braking device for example to a booster.
  • the part 3 comprises in its upper part an inlet orifice 13 and connection means 15 and in its lower part at least one outlet orifice, advantageously, two outlet orifices 19, 21 formed in a lower face 17, and likely to cooperate each with a hydraulic chamber of a tandem master cylinder, the part 13 being rigid and hermetic except at the location of the inlet 13 and outlet 19, 21.
  • connection means 15 extend around the orifice 13 towards the outside of the part 4 by a first sleeve 23 of smaller diameter of axis X and of outer diameter substantially equal to the inside diameter of the sleeve 9 of smaller diameter and length sufficient to penetrate into the sleeve 9 when the part 1 and the part 3 are assembled.
  • the connection means 15 also comprise a second sleeve 25 of larger diameter coaxial with the axis of the second sleeve 11 surrounding the first sleeve 23 of smaller diameter, and of outside diameter equal to the inside diameter of the sleeve 11.
  • first and second sleeves 23, 25 are connected longitudinally along the axis X in their upper parts.
  • the second sleeve of larger diameter 25 is coaxial with the first sleeve of smaller diameter 23 and has substantially the shape of a ring of great thickness surrounding the sleeve 23 and made of material with the first sleeve 23 of smaller diameter.
  • the outlet orifices 19 and 21 extend respectively towards the outside of the second part 3 by sleeves 27, 29 capable of cooperating in leaktight manner with supply orifices of a first and a second hydraulic circuit d '' a tandem master cylinder.
  • the lower part of the interior volume 4 of the part 3 is advantageously divided over a certain height by a partition 28 extending in the direction of the upper part of the part 3 from the bottom of the part 3 between the first and the second outlet orifices. 19 and 21 up to a certain height of the part 3, in a first and a second separate sealed capacities in their lower part and provided respectively in their lower part, with the first and the second outlet orifices 19 and 21, each capacity independently supplying a first and a second hydraulic circuit.
  • the upper end of the partition 28 is located at least below the upper part of the inlet orifice 13.
  • the partition 28 allows in the event of a leak of a first capacity and therefore of a failure of the hydraulic circuit supplied by this first capacity, to have a supply of brake fluid to the second hydraulic circuit by the second capacity which is not affected by the leak of the first ability.
  • Parts 1 and 3 are advantageously made by molding, advantageously in transparent plastic allowing the level of brake fluid in the circuit to be controlled.
  • Part 1 advantageously comprises on its periphery markings (not shown) making it possible at least to indicate the minimum level of filling with brake fluid necessary for the proper functioning of the braking circuit and, advantageously the maximum level of filling.
  • Part 1 is advantageously equipped with a level detector, advantageously electric, (not shown) of brake fluid connected to a device warning the driver in the event of too low a level of brake fluid, for example a light alarm arranged in the passenger compartment of the vehicle.
  • the manufacturer receives the braking device comprising at least one master cylinder 31, in particular a tandem master cylinder, on which the part 3 is mounted, the master cylinder 31 is advantageously connected by its longitudinal end oriented towards the brake pedal at a brake booster (not shown).
  • the mounting method comprises: - a first step A of fixing the master cylinder 31 provided with the part 3 in the engine compartment of the vehicle;
  • the rigid fixing of the first part 1 on the second part 3 is advantageously by snap-fastening, the sealing being produced by sealing means (not shown), for example O-rings.
  • the first part 3 is advantageously supplied hung on the braking device, for example on the booster, and an assembly process is then envisaged comprising a second step of unhooking the part 3 of the braking device and the steps of which are as follows :
  • the rigid fixing of the first part 1 on the second part 3 is advantageously by snap-fastening, the sealing being produced by sealing means (not shown), for example O-rings.
  • This type of attachment advantageously makes it possible to produce a rigid and waterproof mechanical attachment without the use of special mounting tools.
  • connection means 10 and 15 on the parts 1 and 3 does not depart from the scope of the present invention.
  • first and a second part comprising any means for fixing the first part to the second part does not depart from the scope of the present invention.
  • the present invention is particularly applicable to the automotive industry.
  • the present invention applies mainly to the industry of braking systems for motor vehicles and in particular for passenger cars.

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Of Braking Force In Braking Systems (AREA)

Abstract

The invention relates mainly to a hydraulic tank, a brake system comprising one such tank and a method of assembling said tank. According to the invention, the tank comprises a first piece (1) and a second piece (3) which are connected in a sealed manner by connection means (10, 15), a filling port (5) and at least one outlet (19, 21). The inventive system comprises a master cylinder (31) which is equipped with the inventive tank. The assembly method comprises the following steps: the second piece (3) is mounted on the master cylinder (31); the first piece (1) is connected to the second piece (3) which is fixed to the master cylinder (31). Said invention is particularly suitable for the motor vehicle industry and especially for brake systems for motor vehicles and passenger cars.

Description

Réservoir hydraulique, dispositif de freinage comportant un tel réservoir et procédé de montage dudit réservoir Hydraulic reservoir, braking device comprising such a reservoir and method of mounting said reservoir
La présente invention se rapporte principalement à un réservoir hydraulique, notamment un réservoir de liquide de frein, un dispositif de freinage comportant un tel réservoir et un procédé de montage d'un tel réservoir.The present invention relates mainly to a hydraulic reservoir, in particular a brake fluid reservoir, a braking device comprising such a reservoir and a method of mounting such a reservoir.
Les réservoirs hydrauliques utilisés pour les dispositifs de freinage sont généralement formés d'une seule pièce comportant un orifice de remplissage et au moins un orifice d'écoulement, l'orifice de remplissage et l'orifice d'écoulement pouvant éventuellement être le même. Ce type de réservoir est fixé sur un maître-cylindre, notamment un maître-cylindre tandem permettant la distribution du liquide de frein aux roues du véhicule, le réservoir alimente, avantageusement de manière indépendante, un premier et un second circuits hydrauliques.The hydraulic tanks used for the braking devices are generally formed in one piece comprising a filling orifice and at least one flow orifice, the filling orifice and the flow orifice possibly being the same. This type of reservoir is fixed on a master cylinder, in particular a tandem master cylinder allowing the distribution of brake fluid to the wheels of the vehicle, the reservoir feeds, advantageously independently, a first and a second hydraulic circuit.
Les nouveaux dispositifs de freinage comportent des systèmes d'antiblocage des roues, des systèmes de contrôle dynamique du véhicule qui nécessitent pour leur fonctionnement une grande quantité de liquide de frein, et par conséquent, des réservoirs de liquide de frein d'un volume important, ce qui pose des problèmes d'encombrement au montage.The new braking devices include anti-lock braking systems, dynamic vehicle control systems which require a large amount of brake fluid for their operation, and therefore large brake fluid reservoirs, which poses problems of space during assembly.
Généralement les réservoirs monoblocs sont fournis aux constructeurs automobiles montés sur les maîtres-cylindres. Mais du fait de l'encombrement du compartiment moteur et du peu de place libre laissé au dispositif de freinage, le montage du maître-cylindre muni du réservoir devient de plus en plus complexe.Generally one-piece tanks are supplied to car manufacturers mounted on the master cylinders. However, due to the size of the engine compartment and the small amount of free space left for the braking device, the mounting of the master cylinder fitted with the reservoir becomes more and more complex.
Il existe également des réservoirs hydrauliques comportant un premier réservoir de faible volume fixé sur le maître-cylindre et un second réservoir de grande capacité relié au premier réservoir par un tuyau, le second réservoir étant disposé dans une partie accessible du compartiment moteur pour permettre son remplissage et la vérification visuelle du niveau de liquide de frein. Ceci permet de disposer la plus grande capacité de liquide de frein dans une partie du compartiment moteur disposant de plus de place. Ce type de réservoir pose cependant également des problèmes lors du montage du tuyau de raccordement des deux réservoirs du fait du manque d'accessibilité du premier réservoir fixé sur le maître-cylindre.There are also hydraulic tanks comprising a first small volume tank fixed to the master cylinder and a second large capacity tank connected to the first tank by a pipe, the second tank being placed in an accessible part of the engine compartment to allow it to be filled. and visual check of the brake fluid level. This provides the greatest capacity of brake fluid in a part of the engine compartment with more space. This type of tank, however, also poses problems when mounting the pipe connecting the two tanks due to the lack of accessibility of the first tank fixed to the master cylinder.
De plus certains des constructeurs automobiles ne souhaitent plus recevoir de manière indépendante les réservoirs, ceci augmentant les coûts de gestion des stocks pour l'approvisionnement. Cependant il est difficilement envisageable de fournir aux constructeurs automobiles un ensemble complet déjà monté comportant le réservoir en deux partie raccordées par un tuyau monté sur le maître-cylindre pour des raisons d'encombrement lors du montage, le maître-cylindre étant souvent monté par l'intérieur du véhicule ce qui impose un encombrement encore plus réduit.In addition, some of the car manufacturers no longer wish to receive the tanks independently, this increasing the costs of managing stocks for supply. However, it is difficult to envisage providing automobile manufacturers with a complete assembly already assembled comprising the reservoir in two parts connected by a pipe mounted on the master cylinder for reasons of space during assembly, the master cylinder often being mounted by the 'interior of the vehicle which requires an even smaller footprint.
De plus, afin de pouvoir vérifier visuellement le niveau de liquide de frein dans le réservoir et éventuellement remplir le réservoir, la partie supérieure du réservoir et l'orifice de remplissage doivent être facilement accessibles.In addition, in order to be able to visually check the brake fluid level in the reservoir and possibly fill the reservoir, the upper part of the reservoir and the filling opening must be easily accessible.
C'est par conséquent un but de la présente invention d'offrir un réservoir dont le procédé de montage dans le compartiment moteur est simple.It is therefore an object of the present invention to provide a tank whose mounting method in the engine compartment is simple.
C'est également un but de la présente invention d'offrir un réservoir de forme adapté à l'encombrement du compartiment moteur.It is also an object of the present invention to offer a shaped tank adapted to the size of the engine compartment.
C'est également un but de la présente invention d'offrir un réservoir comportant un nombre de pièces réduit.It is also an object of the present invention to offer a reservoir comprising a reduced number of parts.
C'est également un but de la présente invention d'offrir un dispositif de freinage ayant une mise en place rapide dans le compartiment moteur.It is also an object of the present invention to provide a braking device having a rapid installation in the engine compartment.
C'est également un but de la présente invention d'offrir un dispositif de freinage dont le remplissage et la vérification visuelle du niveau de remplissage en liquide de freinage sont facilité. Ces but sont atteints par un réservoir selon la présente invention comportant une première et une seconde pièces rigides complémentaires formant un réservoir monobloc rigide dont la seconde partie est livrée montée sur le maître-cylindre.It is also an object of the present invention to provide a braking device whose filling and visual verification of the filling level with brake fluid are facilitated. These objects are achieved by a reservoir according to the present invention comprising first and second complementary rigid parts forming a rigid monobloc reservoir, the second part of which is delivered mounted on the master cylinder.
En d'autres termes, il s'agit d'un réservoir comportant deux parties , une première partie munie d'un orifice d'entrée et d'un orifice de sortie et une seconde partie comportant un orifice d'entrée et au moins un orifice de sortie, l'orifice de sortie de la première partie coopérant avec l'orifice d'entrée de la seconde partie afin de former un réservoir hermétique monobloc rigide, la seconde partie étant livré monté sur le maître-cylindre.In other words, it is a reservoir comprising two parts, a first part provided with an inlet orifice and an outlet orifice and a second part comprising an inlet orifice and at least one outlet orifice, the outlet orifice of the first part cooperating with the inlet orifice of the second part in order to form a rigid one-piece hermetic reservoir, the second part being delivered mounted on the master cylinder.
La présente invention permet de manière avantageuse de fournir un réservoir dont le montage ne nécessite pas d'outils spéciaux.The present invention advantageously makes it possible to provide a reservoir whose assembly does not require special tools.
La présente invention a par conséquent pour objet un réservoir de liquide hydraulique comportant une première et une seconde pièces rigides définissant un premier et un second volumes, la première pièce étant munie dans sa partie supérieure d'un orifice d'entrée muni d'un moyen d'obturation, d'un orifice de sortie et de premiers moyens de raccordement susceptibles de coopérer avec des seconds moyens de raccordement de la seconde pièce, la seconde pièce étant munie dans sa partie inférieure d'un orifice d'entrée, d'au moins un orifice de sortie, et des seconds moyens • de raccordement, ledit réservoir comportant également des moyens d'étanchéité coopérant avec les moyens de raccordement caractérisé en ce que la fixation de la première pièce sur la deuxième pièce grâce aux moyens de raccordement forme un réservoir monobloc rigide.The present invention therefore relates to a hydraulic fluid reservoir comprising first and second rigid parts defining first and second volumes, the first part being provided in its upper part with an inlet orifice provided with a means shutter, an outlet orifice and first connection means capable of cooperating with second means for connecting the second part, the second part being provided in its lower part with an inlet orifice, at least one output port, and • second means of connection, said reservoir also comprising sealing means cooperating with the connecting means characterized in that the fastening of the first part on the second part through connection means form a rigid monobloc tank.
La présente invention a également pour objet un réservoir caractérisé en ce que les premiers moyens de raccordement de la première pièce comporte un premier manchon de plus petit diamètre bordant l'orifice de sortie de la première pièce, de diamètre intérieur égal au diamètre de l'orifice de sortie et s'étendant vers l'intérieur de la première pièce et un second manchon de plus grand diamètre, de diamètre intérieur supérieur au diamètre de l'orifice de sortie s'étendant vers l'extérieur de la première pièce et en ce que les seconds moyens de raccordement de la seconde pièce comportent un premier manchon de plus petit diamètre, de diamètre extérieur égal au diamètre intérieur du premier manchon de plus petit diamètre de la première pièce, bordant l'orifice d'entrée de la seconde pièce et s'étendant vers l'extérieur de ladite seconde pièce et un second manchon de plus grand diamètre, de diamètre extérieur égal au diamètre intérieur du second manchon de plus grand diamètre de la première pièce, entourant le manchon de plus petit diamètre de la seconde pièce.The present invention also relates to a reservoir characterized in that the first means for connecting the first part comprises a first sleeve of smaller diameter bordering the outlet orifice of the first part, with an internal diameter equal to the diameter of the outlet opening and extending towards the inside of the first part and a second sleeve of larger diameter, with an inside diameter greater than the diameter of the opening outlet extending towards the outside of the first part and in that the second connection means of the second part comprise a first sleeve of smaller diameter, of outside diameter equal to the inside diameter of the first sleeve of smaller diameter of the first part, bordering the inlet orifice of the second part and extending towards the outside of said second part and a second sleeve of larger diameter, of outside diameter equal to the inside diameter of the second sleeve of larger diameter of the first piece, surrounding the smaller diameter sleeve of the second piece.
La présente invention a également pour objet un réservoir caractérisé en ce que le second manchon de plus grand diamètre de la seconde pièce se raccorde par sa périphérie extérieure au premier manchon de plus petit diamètre de la seconde pièce le long d'une génératrice desdits premier et second manchons.The present invention also relates to a reservoir characterized in that the second sleeve of larger diameter of the second part is connected by its outer periphery to the first sleeve of smaller diameter of the second part along a generatrix of said first and second sleeves.
La présente invention a également pour objet un réservoir caractérisé en ce que le second manchon de plus grand diamètre de la seconde pièce a la forme d'une bague de grande largeur entourant le premier manchon de plus petit diamètre de la seconde pièce.The present invention also relates to a reservoir characterized in that the second sleeve of larger diameter of the second part has the shape of a ring of large width surrounding the first sleeve of smaller diameter of the second part.
La présente invention a également pour objet un réservoir caractérisé en ce que lesdits premier et second manchons de la première pièce sont venus de matière avec la première pièce et en ce que les premier et second manchons de la seconde pièce sont venus de matière avec la seconde pièce.The present invention also relates to a tank characterized in that said first and second sleeves of the first part have come in one piece with the first piece and in that the first and second sleeves of the second piece have come in one piece with the second room.
La présente invention a également pour objet un réservoir caractérisé en ce que la première pièce est raccordée à la second pièce par enciiquetage.The present invention also relates to a tank characterized in that the first part is connected to the second part by snap-fastening.
La présente invention a également pour objet un réservoir caractérisé en ce que la première et la seconde pièces sont encliquetées l'une à l'autre et forment un réservoir hermétique sauf aux emplacements des orifices de remplissage et de sortie. La présente invention a également pour objet un réservoir caractérisé en ce que les première et seconde pièces sont réalisées en plastique transparent.The present invention also relates to a tank characterized in that the first and the second parts are snapped to each other and form a hermetic tank except at the locations of the filling and outlet orifices. The present invention also relates to a tank characterized in that the first and second parts are made of transparent plastic.
La présente invention a également pour objet un dispositif de freinage comportant un maître-cylindre caractérisé en ce que la seconde pièce est montée sur ledit maître-cylindre.The present invention also relates to a braking device comprising a master cylinder characterized in that the second part is mounted on said master cylinder.
La présente invention a également pour objet un dispositif de freinage caractérisé en ce qu'il comporte le réservoir selon la présente invention.The present invention also relates to a braking device characterized in that it comprises the reservoir according to the present invention.
La présente invention a également pour objet un procédé de montage dans un compartiment moteur de véhicule caractérisé en ce qu'il comporte entre autres :The present invention also relates to a method of mounting in a vehicle engine compartment, characterized in that it comprises inter alia:
- une première étape de monter les maître-cylindre muni de la seconde pièce dans un compartiment moteur de véhicule ;- a first step of mounting the master cylinder fitted with the second part in a vehicle engine compartment;
- une deuxième étape de fixer la première pièce à la seconde pièce par emmanchement respectivement des premier et second manchons de la seconde pièce dans les premier et second manchons de la première pièce.- A second step of fixing the first part to the second part by fitting respectively the first and second sleeves of the second part in the first and second sleeves of the first part.
La présente invention a également pour objet un procédé de montage caractérisé en ce qu'il comporte également après la première étape de montage, l'étape de décrocher le première pièce du dispositif de freinageThe present invention also relates to an assembly method characterized in that it also comprises, after the first assembly step, the step of unhooking the first part of the braking device
La présente invention sera mieux comprise au moyen de la description ci- après et des figures annexées données comme des exemples non limitatifs et sur lesquelles :The present invention will be better understood by means of the description below and the appended figures given as nonlimiting examples and in which:
La figure 1 est une vue en coupe transversale d'une premier mode de réalisation d'un réservoir en deux parties avant montage selon la présente inventionFigure 1 is a cross-sectional view of a first embodiment of a tank in two parts before mounting according to the present invention
La figure 2 est une vue en coupe transversale d'un second mode de réalisation d'un réservoir avant montage selon la présente invention et d'une maître-cylindre avant montage définitif du réservoir sur le maître-cylindre. La figure 3 est une vue en coupe transversale de l'ensemble réservoir- maître-cylindre de la figure 2 après montage définitif.Figure 2 is a cross-sectional view of a second embodiment of a tank before mounting according to the present invention and of a master cylinder before final mounting of the tank on the master cylinder. Figure 3 is a cross-sectional view of the reservoir-master cylinder assembly of Figure 2 after final assembly.
Sur la figure 1 , on peut voir un réservoir R selon la présente invention avant montage, comportant une première pièce 1 définissant un premier volume 2 et une seconde pièce 3 définissant un second volume 4. La pièce 1 comporte dans sa partie supérieure un orifice de remplissage 5 et dans sa partie inférieure un orifice d'écoulement 6, la pièce 1 étant rigide et hermétique sauf au niveau des orifices 5, 6. L'orifice de remplissage se prolonge vers l'extérieur par un manchon 7 venu de matière avec la pièce 1 , le manchon 7 étant susceptible de coopérer avec un moyen obturateur (non représenté), par exemple un bouchon, avantageusement solidarisé par vissage sur la périphérie extérieure du manchon 7. La pièce 1 comporte avantageusement dans sa partie supérieure un orifice de très petit diamètre (non représenté) permettant la mise à pression atmosphérique de l'air contenu dans le volume 2 afin d'éviter un phénomène de dépression gênant l'écoulement du liquide, l'orifice de mise à l'air libre est avantageusement pratiqué dans le moyen obturateur de l'orifice de remplissage 5. La pièce 1 comporte également dans sa partie inférieure des moyens de raccordement 10 susceptibles de coopérer avec des moyens de raccordement de la seconde pièce 3. Les moyens de raccordement 10 comportent un premier manchon 9 de plus petit diamètre entourant l'orifice 6 et de diamètre intérieur égal au diamètre de l'orifice 6 et d'axe X se prolongeant vers l'intérieur de la pièce 1 dans le volume 2 et un second manchon 11 de plus grand diamètre entourant l'orifice 6 de diamètre intérieur supérieur au diamètre de l'orifice 6, se prolongeant vers l'extérieur de la première pièce 1 et d'axe parallèle à l'axe X, le manchon de plus petit diamètre 9 et le manchon de plus grand diamètre 11 étant venus matière avec la pièce 1. La paroi inférieure, de la pièce 1 est avantageusement inclinée dans la direction de l'orifice d'écoulement 6.In Figure 1, we can see a tank R according to the present invention before mounting, comprising a first part 1 defining a first volume 2 and a second part 3 defining a second volume 4. The part 1 has in its upper part an orifice filling 5 and in its lower part a flow orifice 6, the part 1 being rigid and hermetic except at the level of orifices 5, 6. The filling orifice is extended towards the outside by a sleeve 7 made integrally with the piece 1, the sleeve 7 being capable of cooperating with a shutter means (not shown), for example a plug, advantageously secured by screwing on the outer periphery of the sleeve 7. The piece 1 advantageously has in its upper part a very small orifice diameter (not shown) allowing the air contained in the volume 2 to be brought to atmospheric pressure in order to avoid a phenomenon of depression hindering the flow of the liquid, the vent opening is advantageously made in the shutter means of the filling orifice 5. The part 1 also comprises in its lower part connection means 10 capable of cooperating with connection means of the second part 3. The connection means 10 comprise a first sleeve 9 of smaller diameter surrounding the orifice 6 and of internal diameter equal to the diameter of the orifice 6 and of axis X extending towards the interior of the part 1 in volume 2 and a second sleeve 11 of larger diameter surrounding the orifice 6 with an inner diameter greater than the diameter of the orifice 6, extending towards the outside of the first part 1 and of axis parallel to the axis X, the sleeve of smaller diameter 9 and the sleeve of larger diameter 11 having come into material with the part 1. The lower wall of the part 1 is advantageously inclined in the direction of the flow orifice 6 .
La pièce 1 comporte avantageusement des moyens d'accrochage (non représentés) à un dispositif de freinage par exemple à un servomoteur. La pièce 3 comporte dans sa partie supérieure un orifice d'entrée 13 et des moyens de raccordement 15 et dans sa partie inférieure au moins un orifice de sortie, avantageusement, deux orifices de sortie 19, 21 formés dans une face' inférieure 17, et susceptibles de coopérer chacun avec une chambre hydraulique d'un maître cylindre tandem, la pièce 13 étant rigide et hermétique sauf à l'emplacement des orifices d'entrée 13 et de sortie 19, 21.The part 1 advantageously comprises means for hooking (not shown) to a braking device for example to a booster. The part 3 comprises in its upper part an inlet orifice 13 and connection means 15 and in its lower part at least one outlet orifice, advantageously, two outlet orifices 19, 21 formed in a lower face 17, and likely to cooperate each with a hydraulic chamber of a tandem master cylinder, the part 13 being rigid and hermetic except at the location of the inlet 13 and outlet 19, 21.
Les moyens de raccordement 15 s'étendent autour de l'orifice 13 vers l'extérieur de la pièce 4 par un premier manchon 23 de plus petit diamètre d'axe X et de diamètre extérieur sensiblement égal au diamètre intérieur du manchon 9 de plus petit diamètre et de longueur suffisante pour pénétrer dans le manchon 9 lorsque la pièce 1 et la pièce 3 sont assemblées. Les moyens de raccordement 15 comportent également un second manchon 25 de plus grand diamètre coaxial à l'axe du second manchon 11 entourant le premier manchon 23 de plus petit diamètre, et de diamètre extérieur égale au diamètre intérieur du manchon 11.The connection means 15 extend around the orifice 13 towards the outside of the part 4 by a first sleeve 23 of smaller diameter of axis X and of outer diameter substantially equal to the inside diameter of the sleeve 9 of smaller diameter and length sufficient to penetrate into the sleeve 9 when the part 1 and the part 3 are assembled. The connection means 15 also comprise a second sleeve 25 of larger diameter coaxial with the axis of the second sleeve 11 surrounding the first sleeve 23 of smaller diameter, and of outside diameter equal to the inside diameter of the sleeve 11.
Dans le premier mode de réalisation représenté à la figure 1 , le premier et le second manchons 23, 25 se raccordent longitudinalement selon l'axe X dans leurs parties supérieures. Dans le deuxième mode de réalisation représenté à la figure 2, le second manchon de plus grand diamètre 25 est coaxiale au premier manchon de plus petit diamètre 23 et a sensiblement la forme d'une bague de grande épaisseur entourant le manchon 23 et venue de matière avec le premier manchon 23 de plus petit diamètre. Les orifices de sortie 19 et 21 s'étendent respectivement vers l'extérieur de la seconde pièce 3 par des manchons 27, 29 susceptibles de coopérer de manière étanches avec des orifices d'alimentation d'un premier et d'un second circuit hydraulique d'un maître-cylindre tandem.In the first embodiment shown in Figure 1, the first and second sleeves 23, 25 are connected longitudinally along the axis X in their upper parts. In the second embodiment shown in FIG. 2, the second sleeve of larger diameter 25 is coaxial with the first sleeve of smaller diameter 23 and has substantially the shape of a ring of great thickness surrounding the sleeve 23 and made of material with the first sleeve 23 of smaller diameter. The outlet orifices 19 and 21 extend respectively towards the outside of the second part 3 by sleeves 27, 29 capable of cooperating in leaktight manner with supply orifices of a first and a second hydraulic circuit d '' a tandem master cylinder.
La partie inférieure du volume intérieur 4 de la pièce 3 est avantageusement divisé sur une certaine hauteur par une cloison 28 s'étendant en direction de la partie supérieure de la pièce 3 du fond de la pièce 3 entre les premier et le second orifices de sortie 19 et 21 jusqu'à une certaine hauteur de la pièce 3, en une première et une seconde capacités distinctes étanches dans leur partie inférieure et munies respectivement dans leur partie inférieure, du premier et du second orifices de sortie 19 et 21 , chaque capacité alimentant indépendamment un premier et un second circuits hydrauliques . L'extrémité supérieure de la cloison 28 est située au moins en dessous de la partie supérieure de l'orifice d'entrée 13.The lower part of the interior volume 4 of the part 3 is advantageously divided over a certain height by a partition 28 extending in the direction of the upper part of the part 3 from the bottom of the part 3 between the first and the second outlet orifices. 19 and 21 up to a certain height of the part 3, in a first and a second separate sealed capacities in their lower part and provided respectively in their lower part, with the first and the second outlet orifices 19 and 21, each capacity independently supplying a first and a second hydraulic circuit. The upper end of the partition 28 is located at least below the upper part of the inlet orifice 13.
La cloison 28 permet en cas de fuite d'une première capacité et donc d'une défaillance du circuit hydraulique alimenté par cette première capacité, d'avoir une alimentation en liquide de frein du deuxième circuit hydraulique par la seconde capacité qui n'est pas affectée par la fuite de la première capacité.The partition 28 allows in the event of a leak of a first capacity and therefore of a failure of the hydraulic circuit supplied by this first capacity, to have a supply of brake fluid to the second hydraulic circuit by the second capacity which is not affected by the leak of the first ability.
Les pièces 1 et 3 sont avantageusement réalisées par moulage, avantageusement en plastique transparent permettant le contrôle du niveau de liquide de frein dans le circuit.Parts 1 and 3 are advantageously made by molding, advantageously in transparent plastic allowing the level of brake fluid in the circuit to be controlled.
La partie 1 comporte avantageusement sur sa périphérie des marquages (non représentés) permettant au moins d'indiquer la niveau minimum de remplissage en liquide de frein nécessaire au bon fonctionnement du circuit de freinage et, avantageusement le niveau maximum de remplissage. La partie 1 est avantageusement équipée d'un détecteur de niveau, avantageusement électrique, (non représenté) de liquide de frein relié à un dispositif prévenant le conducteur en cas d'un niveau trop faible de liquide de frein, par exemple à une alarme lumineuse disposée dans l'habitacle du véhicule.Part 1 advantageously comprises on its periphery markings (not shown) making it possible at least to indicate the minimum level of filling with brake fluid necessary for the proper functioning of the braking circuit and, advantageously the maximum level of filling. Part 1 is advantageously equipped with a level detector, advantageously electric, (not shown) of brake fluid connected to a device warning the driver in the event of too low a level of brake fluid, for example a light alarm arranged in the passenger compartment of the vehicle.
Nous allons maintenant décrire le procédé de montage par le constructeur automobile du réservoir R complet sur le dispositif de freinage représenté sur les figures 2 et 3.We will now describe the assembly process by the car manufacturer of the complete tank R on the braking device shown in FIGS. 2 and 3.
Le constructeur reçoit le dispositif de freinage comportant au moins un maître-cylindre 31 , notamment un maître cylindre tandem, sur lequel est monté la pièce 3, le maître-cylindre 31 est avantageusement relié par son extrémité longitudinale orientée vers la pédale de frein à un servomoteur d'assistance au freinage (non représenté).The manufacturer receives the braking device comprising at least one master cylinder 31, in particular a tandem master cylinder, on which the part 3 is mounted, the master cylinder 31 is advantageously connected by its longitudinal end oriented towards the brake pedal at a brake booster (not shown).
Le procédé de montage comporte : - une première étape A de fixation du maître-cylindre 31 muni de la pièce 3 dans le compartiment moteur du véhicule ;The mounting method comprises: - a first step A of fixing the master cylinder 31 provided with the part 3 in the engine compartment of the vehicle;
- une deuxième étape B de raccordement de la pièce 1 à la pièce 3 par les moyens de raccordement 10, 13 par pénétration du manchon 23 de plus petit diamètre de la seconde pièce 3 dans le manchon 9 de plus petit diamètre de la première pièce 1 et du manchon 25 de plus grand diamètre de la seconde pièce 3 dans le manchon 11 de plus grand diamètre de la première pièce 1 , la fixation rigide de la première pièce 1 sur la seconde pièce 3 se fait avantageusement par encliquetage, l'étanchéité étant réalisés par des moyens d'étanchéité (non représentés), par exemple des joints toriques.a second step B of connection of the part 1 to the part 3 by the connection means 10, 13 by penetration of the sleeve 23 of smaller diameter of the second part 3 into the sleeve 9 of smaller diameter of the first part 1 and of the sleeve 25 of larger diameter of the second part 3 in the sleeve 11 of larger diameter of the first part 1, the rigid fixing of the first part 1 on the second part 3 is advantageously by snap-fastening, the sealing being produced by sealing means (not shown), for example O-rings.
La première pièce 3 est avantageusement fournie accrochée sur le dispositif de freinage, par exemple sur le servomoteur, et il est alors envisagé un procédé de montage comportant une deuxième étape de décrochage de la pièce 3 du dispositif de freinage et dont les étapes sont les suivantes :The first part 3 is advantageously supplied hung on the braking device, for example on the booster, and an assembly process is then envisaged comprising a second step of unhooking the part 3 of the braking device and the steps of which are as follows :
- une première étape A de fixation du maître-cylindre 31 muni de la pièce 3 dans le compartiment moteur du véhicule;- A first step A of fixing the master cylinder 31 provided with the part 3 in the engine compartment of the vehicle;
- une deuxième étape B' de décrochage de la pièce 1 du servomoteur d'assistance au freinage ;- A second step B 'of stalling the part 1 of the brake booster;
- une troisième étape C de raccordement de la pièce 1 à la pièce 4 par les moyens 10, 13 de raccordement par pénétration du manchon 23 de plus petit diamètre de la seconde pièce 3 dans le manchon 9 de plus petit diamètre de la première pièce 1 et du manchon 25 de plus grand diamètre de la seconde pièce 3 dans le manchon 11 de plus grand diamètre de la première pièce 1 , la fixation rigide de la première pièce 1 sur la seconde pièce 3 se fait avantageusement par encliquetage, l'étanchéité étant réalisés par des moyens d'étanchéité (non représentés) par exemple des joints toriques. Lorsque la pièce 1 et la pièce 3 sont assemblées selon l'un des procédés précédents, elles forment un réservoir monobloc rigide et hermétique sauf aux emplacements de l'orifice de remplissage 5 et des orifices de sorties 19 et 21.a third step C of connection of the part 1 to the part 4 by the means 10, 13 of connection by penetration of the sleeve 23 of smaller diameter of the second part 3 into the sleeve 9 of smaller diameter of the first part 1 and of the sleeve 25 of larger diameter of the second part 3 in the sleeve 11 of larger diameter of the first part 1, the rigid fixing of the first part 1 on the second part 3 is advantageously by snap-fastening, the sealing being produced by sealing means (not shown), for example O-rings. When the part 1 and the part 3 are assembled according to one of the preceding methods, they form a rigid and hermetic one-piece reservoir except at the locations of the filling orifice 5 and of the outlet orifices 19 and 21.
Ce type de fixation permet avantageusement de réaliser une fixation mécanique rigide et étanche sans utilisation d'outils de montage spéciaux.This type of attachment advantageously makes it possible to produce a rigid and waterproof mechanical attachment without the use of special mounting tools.
II est bien entendu que le fait d'intervertir les moyens de raccordement 10 et 15 sur les piècesl et 3 ne sort pas du cadre de la présente invention.It is understood that the fact of inverting the connection means 10 and 15 on the parts 1 and 3 does not depart from the scope of the present invention.
Il est bien entendu qu'un premier et un second pièces comportant tous moyens de fixation de la première pièce à la seconde pièce ne sort pas du cadre de la présente invention.It is understood that a first and a second part comprising any means for fixing the first part to the second part does not depart from the scope of the present invention.
Il est bien entendu qu'un réservoir selon la présente invention ne comportant dans sa partie inférieure qu'un orifice de sortie alimentant un seul circuit hydraulique ne sort pas du cadre de la présente invention.It is understood that a tank according to the present invention having in its lower part only an outlet orifice supplying a single hydraulic circuit does not depart from the scope of the present invention.
La présente invention s'applique notamment à l'industrie automobile.The present invention is particularly applicable to the automotive industry.
La présente invention s'applique principalement à l'industrie des systèmes de freinage pour véhicules automobiles et notamment pour voitures particulières. The present invention applies mainly to the industry of braking systems for motor vehicles and in particular for passenger cars.

Claims

Revendications claims
1. Réservoir de liquide hydraulique comportant une première et une seconde pièces rigides (1 , 3) définissant un premier et un second volumes (2, 4), la première pièce (1) étant munie dans sa partie supérieure d'un orifice d'entrée (5) muni d'un moyen d'obturation, d'un orifice de sortie (6) et de premiers moyens de raccordement (10) susceptibles de coopérer avec des seconds moyens de raccordement (15) de la seconde pièce (3), la seconde pièce (3) étant munie dans sa partie inférieure d'un orifice d'entrée (13), d'au moins un orifice de sortie (19, 21), et des seconds moyens de raccordement (15), ledit réservoir comportant également des moyens d'étanchéité coopérant avec les moyens de raccordement (10, 13) caractérisé en ce que la fixation de la première pièce (1) sur la deuxième pièce (3) grâce aux moyens de raccordement (10, 13) forme un réservoir monobloc rigide.1. Hydraulic fluid reservoir comprising first and second rigid parts (1, 3) defining first and second volumes (2, 4), the first part (1) being provided in its upper part with an orifice inlet (5) provided with a closure means, an outlet orifice (6) and first connection means (10) capable of cooperating with second connection means (15) of the second part (3) , the second part (3) being provided in its lower part with an inlet orifice (13), with at least one outlet orifice (19, 21), and second connection means (15), said tank also comprising sealing means cooperating with the connection means (10, 13) characterized in that the fixing of the first part (1) to the second part (3) by means of the connection means (10, 13) forms a rigid monobloc tank.
2. Réservoir selon la revendication 1 caractérisé en ce que les premiers moyens de raccordement (10) de la première pièce (1) comporte un premier manchon (9) de plus petit diamètre bordant l'orifice de sortie de sortie (6) de la première pièce (1), de diamètre intérieur égal au diamètre de l'orifice de sortie (6) et s'étendant vers l'intérieur de la première pièce (1) et un second manchon (11) de plus grand diamètre, de diamètre intérieur supérieur au diamètre de l'orifice de sortie (6) s'étendant vers l'extérieur de la première pièce (1) et en ce que les seconds moyens de raccordement (15) de la seconde pièce (3) comportent un premier manchon (23) de plus petit diamètre, de diamètre extérieur égal au diamètre intérieur du premier manchon de plus petit diamètre (9) de la première pièce (1), bordant l'orifice d'entrée (13) de la seconde pièce (3) et s'étendant vers l'extérieur de ladite seconde pièce (3) et un second manchon (25) de plus grand diamètre, de diamètre extérieur égal au diamètre intérieur du second manchon (11) de plus grand diamètre de la première pièce (1), entourant le manchon (23) de plus petit diamètre de la seconde pièce (3). 2. Tank according to claim 1 characterized in that the first connection means (10) of the first part (1) comprises a first sleeve (9) of smaller diameter bordering the outlet outlet orifice (6) of the first part (1), of internal diameter equal to the diameter of the outlet orifice (6) and extending towards the interior of the first part (1) and a second sleeve (11) of larger diameter, of diameter interior greater than the diameter of the outlet orifice (6) extending towards the exterior of the first part (1) and in that the second connection means (15) of the second part (3) comprise a first sleeve (23) of smaller diameter, of outside diameter equal to the inside diameter of the first sleeve of smaller diameter (9) of the first part (1), bordering the inlet orifice (13) of the second part (3) and extending outward from said second part (3) and a second sleeve (25) of larger diameter meter, of external diameter equal to the internal diameter of the second sleeve (11) of larger diameter of the first part (1), surrounding the sleeve (23) of smaller diameter of the second part (3).
3. Réservoir selon la revendication 2 caractérisé en ce que le second manchon de plus grand diamètre (25) de la seconde pièce (3) se raccorde par sa périphérie extérieure au premier manchon (23) de plus petit diamètre de la seconde pièce (3) le long d'une génératrice desdits premier et second manchons (23, 25).3. Tank according to claim 2 characterized in that the second sleeve of larger diameter (25) of the second part (3) is connected by its outer periphery to the first sleeve (23) of smaller diameter of the second part (3 ) along a generator of said first and second sleeves (23, 25).
4. Réservoir selon la revendication 2 caractérisé en ce que le second manchon de plus grand diamètre (25) de la seconde pièce (3) a la forme d'une bague de grande largeur entourant le premier manchon (23) de plus petit diamètre de la seconde pièce (3).4. Tank according to claim 2 characterized in that the second sleeve of larger diameter (25) of the second part (3) has the shape of a ring of large width surrounding the first sleeve (23) of smaller diameter the second part (3).
5. Réservoir selon la revendication 2, 3 ou 4 caractérisé en ce que lesdits premier et second manchons (9, 11) de la première pièce (1) sont venus de matière avec la première pièce (1) et en ce que les premier et second manchons (23, 25) de la seconde pièce (3) sont venus de matière avec la seconde pièce (3).5. Tank according to claim 2, 3 or 4 characterized in that said first and second sleeves (9, 11) of the first part (1) came integrally with the first part (1) and in that the first and second sleeves (23, 25) of the second part (3) came integrally with the second part (3).
6. Réservoir selon l'une quelconque des revendications précédentes caractérisé en ce que la première pièce (1) est raccordée à la second pièce (3) par encliquetage.6. Tank according to any one of the preceding claims, characterized in that the first part (1) is connected to the second part (3) by snap-fastening.
7. Réservoir selon la revendication 6 caractérisé en ce que la première et la seconde pièces sont encliquetées l'une à l'autre et forment un réservoir hermétique sauf aux emplacements des orifices de remplissage et de sortie.7. Tank according to claim 6 characterized in that the first and second parts are snapped to each other and form a sealed tank except at the locations of the filling and outlet orifices.
8. Réservoir selon l'une quelconque des revendications précédentes caractérisé en ce que les première et seconde pièces (1 , 3) sont réalisées en plastique transparent.8. Tank according to any one of the preceding claims, characterized in that the first and second parts (1, 3) are made of transparent plastic.
9. Dispositif de freinage comportant un maître-cylindre, notamment un maître cylindre tandem, caractérisé en ce que la seconde pièce (3) selon l'une quelconque des revendications de 1 à 8 est monté sur le maître- cylindre (31).9. Braking device comprising a master cylinder, in particular a tandem master cylinder, characterized in that the second part (3) according to any one of claims 1 to 8 is mounted on the master cylinder (31).
10. Dispositif de freinage selon la revendication 9 caractérisé en ce qu'il comporte un réservoir selon les l'une quelconque des revendications de 1 à 8.10. Braking device according to claim 9 characterized in that it comprises a reservoir according to any one of claims from 1 to 8.
11. Procédé de montage du dispositif de freinage selon la revendication 9 ou 10 dans un compartiment moteur de véhicule caractérisé en ce qu'il comporte entre autres :11. A method of mounting the braking device according to claim 9 or 10 in a vehicle engine compartment characterized in that it comprises inter alia:
- une première étape (A) de monter les maître-cylindre muni de la seconde pièce (3) dans un compartiment moteur de véhicule ;- a first step (A) of mounting the master cylinder provided with the second part (3) in a vehicle engine compartment;
- une deuxième étape (B) de fixer la première pièce (1) à la seconde pièce (3) par emmanchement respectivement des premier et second manchons (23, 25) de la seconde pièce (3) dans les premier et second manchons (9, 11) de la première pièce (1).- a second step (B) of fixing the first part (1) to the second part (3) by fitting the first and second sleeves (23, 25) of the second part (3) respectively into the first and second sleeves (9 , 11) of the first part (1).
12. Procédé de montage selon la revendication 11 caractérisé en ce qu'il comporte également après la première étape (A), l'étape de décrocher le première pièce (1) du dispositif de freinage. 12. The mounting method according to claim 11 characterized in that it also comprises after the first step (A), the step of unhooking the first part (1) of the braking device.
EP02751270A 2001-06-21 2002-06-19 Hydraulic tank and a brake system comprising one such tank Withdrawn EP1401691A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0108302A FR2826326B1 (en) 2001-06-21 2001-06-21 HYDRAULIC RESERVOIR, BRAKING DEVICE COMPRISING SUCH A RESERVOIR AND METHOD FOR MOUNTING SAID RESERVOIR
FR0108302 2001-06-21
PCT/FR2002/002112 WO2003004331A1 (en) 2001-06-21 2002-06-19 Hydraulic tank and a brake system comprising one such tank

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EP1401691A1 true EP1401691A1 (en) 2004-03-31

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US (1) US20040207250A1 (en)
EP (1) EP1401691A1 (en)
JP (1) JP2004533369A (en)
FR (1) FR2826326B1 (en)
WO (1) WO2003004331A1 (en)

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US20040207250A1 (en) 2004-10-21
FR2826326A1 (en) 2002-12-27
WO2003004331A1 (en) 2003-01-16
FR2826326B1 (en) 2003-09-19
JP2004533369A (en) 2004-11-04

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