EP1135647A1 - Reservoir for containing fluid under pressure and comprising internal reinforcements - Google Patents

Reservoir for containing fluid under pressure and comprising internal reinforcements

Info

Publication number
EP1135647A1
EP1135647A1 EP00906424A EP00906424A EP1135647A1 EP 1135647 A1 EP1135647 A1 EP 1135647A1 EP 00906424 A EP00906424 A EP 00906424A EP 00906424 A EP00906424 A EP 00906424A EP 1135647 A1 EP1135647 A1 EP 1135647A1
Authority
EP
European Patent Office
Prior art keywords
walls
reservoir
tank
reinforcement
tank according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP00906424A
Other languages
German (de)
French (fr)
Other versions
EP1135647B1 (en
Inventor
Gérard Goffre
Bruno Lebrun
Jean Lichere
Michel Maquaire
Eric Petitpas
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.)
Nexter Mechanics SA
Original Assignee
Giat Industries SA
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
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Application filed by Giat Industries SA filed Critical Giat Industries SA
Publication of EP1135647A1 publication Critical patent/EP1135647A1/en
Application granted granted Critical
Publication of EP1135647B1 publication Critical patent/EP1135647B1/en
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
    • F17C1/02—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge involving reinforcing arrangements
    • F17C1/08—Integral reinforcements, e.g. ribs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0147—Shape complex
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0147—Shape complex
    • F17C2201/0152—Lobes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05—Size
    • F17C2201/056—Small (<1 m3)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/01—Reinforcing or suspension means
    • F17C2203/011—Reinforcing means
    • F17C2203/013—Reinforcing means in the vessel, e.g. columns
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0602—Wall structures; Special features thereof
    • F17C2203/0612—Wall structures
    • F17C2203/0614—Single wall
    • F17C2203/0617—Single wall with one layer
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0636—Metals
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2209/00—Vessel construction, in particular methods of manufacturing
    • F17C2209/22—Assembling processes
    • F17C2209/221—Welding
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/032—Hydrocarbons
    • F17C2221/035—Propane butane, e.g. LPG, GPL
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0146—Two-phase
    • F17C2223/0153—Liquefied gas, e.g. LPG, GPL
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/035—High pressure (>10 bar)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/01—Improving mechanical properties or manufacturing
    • F17C2260/011—Improving strength
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/01—Improving mechanical properties or manufacturing
    • F17C2260/018—Adapting dimensions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0165—Applications for fluid transport or storage on the road
    • F17C2270/0168—Applications for fluid transport or storage on the road by vehicles

Definitions

  • the technical sector of the present invention is that of enclosures intended to contain pressurized fluids, such as tanks subjected to internal pressure, and more particularly tanks of liquefied petroleum gas, called LPG, for vehicles.
  • pressurized fluids such as tanks subjected to internal pressure, and more particularly tanks of liquefied petroleum gas, called LPG, for vehicles.
  • the enclosures intended to contain pressurized fluids are made of a metallic sheet material, formed to obtain a substantially cylindrical reservoir whose ends are in the form of a portion of a sphere.
  • the LPG tanks used for example in automobiles are cylindrical as described above or toric. Their shape has the advantage of being well suited to a uniform distribution of the stresses around the periphery of the tank.
  • the toroidal tanks are mounted at the location of the spare tire. Their capacity is limited due to the lack of space available at this location.
  • Cylindrical tanks are generally arranged at the bottom of the trunk of the automobile, where they considerably reduce the volume of the latter, especially as the compartment which is intended to accommodate them is parallelepipedic and that the volume between the corners of the compartment and the arc of the tank is empty. There is therefore a loss of useful volume, both for the trunk and for the tank. Cylindrical tanks can also be mounted under the rear overhang trunk. In this case, the available space being limited in height, a cylindrical reservoir of small diameter is used, or several cylindrical reservoirs of small diameter connected together by a pipe welded radially on the periphery of the cylinders. This solution allows not to encroach on the volume of the trunk. It is nevertheless expensive and does not allow the entire volume available under the trunk to be used since an empty part remains between the two adjoining cylindrical tanks.
  • the toric and cylindrical tanks are therefore not fully satisfactory. Indeed, they are heavy because their walls are thick. In addition, they are often required to be mounted in compartments of parallelepiped shape whose available space is not optimally used.
  • the object of the present invention is to provide a light and resistant tank. Its mechanical characteristics must enable it to withstand the internal pressure involved in storing the pressurized fluid, external stresses, such as an impact, when the vehicle is deformed during an accident and the increase in internal pressure in vehicle fire.
  • the tank must have a shape making it suitable for being housed in compartments with shapes composed of parallelepipeds.
  • the present invention relates to a reservoir intended to contain a pressurized fluid and capable of being housed in a compartment of substantially parallelepiped shape, characterized in that it comprises at least two opposite vaulted walls provided with the less than one well, the edges of which are curved towards the inside of the tank according to a circular arc profile and a reinforcement comprising a seat at each of its ends flared according to the same circular arc profile as that of the well for adjust in the corresponding well of each of the two opposite walls and maintain the spacing of these two walls.
  • the reservoir intended to contain pressurized fluid and capable of being housed in a compartment of a vehicle is also characterized in that it comprises at least two opposite vaulted walls comprising at least one well whose edges are curved towards the inside of the tank according to a profile substantially in an arc of a circle and at least reinforcement whose ends are flared in the shape of a corolla according to the same profile in an arc of circle as that of the well to adjust edge to edge with the corresponding well of each of the two opposite walls of the tank and maintain the spacing of these two walls.
  • the reinforcement can be constituted by a solid bar connecting the seats together.
  • the reinforcement can be constituted by a hollow tube connecting the seats together.
  • the reservoir according to the invention is characterized in that at least two opposite walls comprising the wells have a profile in the form of an arch.
  • the tank according to the invention is characterized in that at least one of the other walls of the tank is curved.
  • the tank according to the invention is advantageously characterized in that the interior of the tank is in the form of a vault.
  • the reservoir according to the invention is advantageously characterized in that the seat of the reinforcement is applied to a portion of the well in which it is inserted.
  • the reservoir may include two sets of wells arranged in two parallel rows in which reinforcements are engaged.
  • the reinforcements are produced in the form of a single piece whose ends are in corolla.
  • each reinforcement is made in at least three parts, one substantially cylindrical extended on either side by a cap in the shape of a corolla.
  • each reinforcement consists of a hollow tube connecting the edge of the wells to each other, made in the form of a single piece whose ends are corolla.
  • the reinforcements can also be made in at least three parts, one substantially cylindrical extended on either side by a cap in the shape of a corolla.
  • An advantage of the reservoir according to the invention consists in that its structure allows it to be light, to be resistant and to be able to deform without breaking.
  • Yet another advantage of the invention lies in the fact that the structure of the reservoir has surface continuity between the walls and the reinforcements, which improves the resistance of the reservoir to pressure.
  • FIG. 1 is a view of the reservoir according to invention
  • FIG. 2 is a perspective view of an eighth of a reservoir shown in three-dimensional mesh
  • FIG. 3 is a view in longitudinal section of the curved face of a half tank according to the invention.
  • FIG. 4 is a view of a reinforcement
  • FIG. 5 is a view of a variant of a reinforcement
  • FIG. 6 is a sectional view of a portion of tank according to the invention provided with a full reinforcement
  • FIG. 7 is a sectional view of a portion of a reservoir according to the invention provided with a hollow reinforcement
  • FIG. 8 is another view in longitudinal section of the curved face of a half tank according to the invention.
  • the tank 1 shown in Figure 1 has a generally curved shape with six walls defining a set of arches, two upper walls 2 and lower 3, two side walls 4 and 5 and two front walls 6 and rear 7. Each of the walls is obtained from a metal sheet conforming to the desired curvature. Walls 2 and 3 are larger than the other walls and are joined by reinforcements described below.
  • the tank 1 can be made in the form of two half shells 8 assembled along a longitudinal plane and joined by internal reinforcements 9. Only a quarter of a half shell is shown in Figure 2 for convenience.
  • the two half shells 8 and the reinforcements 9 can be assembled by welding.
  • the opposite walls 2 and 3 of each half-shell are in the form of a vault whose concavity is directed towards the interior of the tank.
  • the joint plane 11 of the wall 2 and the four adjacent side walls 4-7 is rectangular in shape with rounded corners.
  • the two vaulted walls 2 and 3 of the reservoir have wells 12 in profile in an arc of a circle, the edges of which are curved in a continuous profile with that of the vaults .
  • the reservoir according to the invention can be produced in a variety of ways.
  • the different wells 12 of the two opposite walls 2 and 3 of the tank are arranged opposite one another. They are designed to receive the reinforcements 9.
  • the reinforcements make it possible to take up the forces of the large vaulted walls 2 and 3 of the tank, so as to eliminate the bending moments at the junction between the vaulted walls and the curved walls.
  • Each well 12 has a profile in an arc of a circle oriented towards the interior of the reservoir and is terminated by a edge 14.
  • the reinforcements 9 are constituted by a full flared spacer at each of its ends, thus giving it a valve shape.
  • Each reinforcement has a rod
  • the reinforcements 9 consist of a tube 16 flared at each of its ends to delimit a seat 17 whose radius of curvature corresponds to that of the arcuate profile of the wells 12 formed in the vaulted walls 2 and 3 of the tank.
  • the rod 13 and the tube 16 of the reinforcements 9 engage in the wells 12 of the wall of the tank until that the seat 15 or 17 of the reinforcements comes to adjust in abutment on the edges of the well 12 to the profile in an arc.
  • Excellent sealing of the tank is ensured by welding the seat 15 or 17 of the reinforcements in the wells 12 of the tank.
  • the seat 15 or 17 of the reinforcement does not completely fill the well 12 of the wall 2 of the reservoir, leaving a part 18 or 19 of the well 12 free.
  • the rupture pressure of a tank thus produced with tubular or full reinforcements is 12.10 6 Pa for a total mass of the order of 45 kg, a useful volume of 95 liters and a useful volume / bulk volume ratio of
  • the embodiments of the invention described above and shown in the figures are in no way limiting and may give rise to variants.
  • the rod 10 of the reinforcements 3 could have a variable diameter and be thinned towards the joint plane 6.
  • the tank thus obtained can be housed in the available space of the vehicle. This space can be delimited by several parallelepipeds, that is to say an assembly of elementary planar and circular surfaces.
  • FIG. 8 shows a section of the wall 2 made at the level of the wells 20. Two rows of wells 20a and 20b are for example provided at each wall 2.
  • Each well 20 has a circular arc profile oriented towards the inside of the tank, the end edge of which comes in continuity with the edge of the reinforcement 21 opposite. Thus, one can carry out a weld 22 edge to edge between the well
  • the reinforcement 21a is tubular with a flared end in the shape of a corolla; but, one could use in the same way a reinforcement constituted by a solid rod.
  • a reinforcement 21b in the form of a tube extended by a cap 23 having a tubular end connected by the weld 24 to the reinforcement 21b and a flared end in the shape of a corolla connected to the well 20b by the weld 25.
  • the welds 24 and 25 are produced as explained previously edge to edge. This achievement allows better control of the manufacturing process.
  • edge-to-edge welding is meant welding by jointing with welding double-sided, a jointed joint in a single weld, a non-jointed joint in a single weld with a removable slat, an assembly with weld on a raised edge or an assembly with a corner weld on a permanent slat.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Self-Closing Valves And Venting Or Aerating Valves (AREA)
  • Pressure Vessels And Lids Thereof (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

The invention relates to a reservoir (1) for containing a fluid under pressure and which can be accommodated in a compartment which is comprised of parallelepiped volumes. The inventive reservoir (2) consists of at least two opposing arched walls, (12) whereby the edges of said walls curve inwards towards the inside of the reservoir according to a substantially arc shaped profile, in addition to a reinforcement (9) which is provided with a seat (15) at each end, whereby said seat is bellmouthed according to the same arc shaped profile as that of the shaft (12) so that it can be adjusted inside the corresponding shaft of each of the two walls (2) that are disposed opposite to the reservoir and maintain the distance between both walls. The seat (15) of the reinforcements (9) is applied to a portion of the shaft (12) in which it is inserted. The invention can be used with LPG vehicles.

Description

RESERVOIR DESTINE À CONTENIR DES FLUIDES SOUS PRESSION COMPORTANT DES RENFORTS INTERNES TANK FOR CONTAINING PRESSURIZED FLUIDS WITH INTERNAL REINFORCEMENTS
Le secteur technique de la présente invention est celui des enceintes destinées à contenir des fluides sous pression, tels des réservoirs soumis à une pression interne, et plus particulièrement les réservoirs de gaz de pétrole liquéfié, dit GPL, pour véhicules.The technical sector of the present invention is that of enclosures intended to contain pressurized fluids, such as tanks subjected to internal pressure, and more particularly tanks of liquefied petroleum gas, called LPG, for vehicles.
Généralement, les enceintes destinées à contenir des fluides sous pression sont constituées d'un matériau métallique en feuille, formé pour obtenir un réservoir sensiblement cylindrique dont les extrémités se présentent sous la forme d'une portion de sphère. Les réservoirs GPL utilisés par exemple dans les automobiles sont cylindriques comme décrit précédemment ou toriques. Leur forme présente l'avantage d'être bien adaptée à une répartition uniforme des contraintes sur la périphérie du réservoir.Generally, the enclosures intended to contain pressurized fluids are made of a metallic sheet material, formed to obtain a substantially cylindrical reservoir whose ends are in the form of a portion of a sphere. The LPG tanks used for example in automobiles are cylindrical as described above or toric. Their shape has the advantage of being well suited to a uniform distribution of the stresses around the periphery of the tank.
Dans les automobiles, les réservoirs toriques sont montés à l'emplacement de la roue de secours. Leur capacité est limitée du fait du manque de place disponible à cet emplacement.In automobiles, the toroidal tanks are mounted at the location of the spare tire. Their capacity is limited due to the lack of space available at this location.
Les réservoirs cylindriques sont généralement disposés au fond du coffre de l'automobile, où ils réduisent de façon considérable le volume de celui-ci, d'autant que le compartiment qui est destiné à les accueillir est parallélépipédique et que le volume compris entre les angles du compartiment et l'arc de cercle du réservoir est vide. Il y a donc une perte du volume utile, tant pour le coffre que pour le réservoir. Les réservoirs cylindriques peuvent également être montés sous le coffre en porte à faux arrière. Dans ce cas, l'espace disponible étant limité en hauteur, on utilise un réservoir cylindrique de petit diamètre, ou plusieurs réservoirs cylindriques de petit diamètre reliés entre eux par un tuyau soudé radialement sur la périphérie des cylindres . Cette solution permet de ne pas empiéter sur le volume du coffre. Elle est néanmoins coûteuse et ne permet pas d'utiliser la totalité du volume disponible sous le coffre puisqu'il subsiste une partie vide entre les deux réservoirs cylindriques accolés.Cylindrical tanks are generally arranged at the bottom of the trunk of the automobile, where they considerably reduce the volume of the latter, especially as the compartment which is intended to accommodate them is parallelepipedic and that the volume between the corners of the compartment and the arc of the tank is empty. There is therefore a loss of useful volume, both for the trunk and for the tank. Cylindrical tanks can also be mounted under the rear overhang trunk. In this case, the available space being limited in height, a cylindrical reservoir of small diameter is used, or several cylindrical reservoirs of small diameter connected together by a pipe welded radially on the periphery of the cylinders. This solution allows not to encroach on the volume of the trunk. It is nevertheless expensive and does not allow the entire volume available under the trunk to be used since an empty part remains between the two adjoining cylindrical tanks.
Les réservoirs toriques et cylindriques ne donnent donc pas pleinement satisfaction. En effet, ils sont lourds car leurs parois sont épaisses. De plus, ils sont souvent amenés à être montés dans des compartiments de forme parallélépipédique dont l'espace disponible n'est pas utilisé de façon optimale.The toric and cylindrical tanks are therefore not fully satisfactory. Indeed, they are heavy because their walls are thick. In addition, they are often required to be mounted in compartments of parallelepiped shape whose available space is not optimally used.
Le but de la présente invention est de proposer un réservoir léger et résistant. Ses caractéristiques mécaniques doivent lui permettre de résister à la pression interne impliquée par le stockage du fluide sous pression, à des sollicitations externes, tel un choc, lorsque le véhicule est déformé lors d'un accident et à l'augmentation de la pression interne en cas d'incendie du véhicule. De plus, le réservoir doit avoir une forme le rendant apte à se loger dans des compartiments aux formes composées par des parallélépipèdes .The object of the present invention is to provide a light and resistant tank. Its mechanical characteristics must enable it to withstand the internal pressure involved in storing the pressurized fluid, external stresses, such as an impact, when the vehicle is deformed during an accident and the increase in internal pressure in vehicle fire. In addition, the tank must have a shape making it suitable for being housed in compartments with shapes composed of parallelepipeds.
Afin de répondre à ces objectifs, la présente invention a pour objet un réservoir destiné à contenir un fluide sous pression et apte à se loger dans un compartiment de forme sensiblement parallélépipédique, caractérisé en ce qu'il comprend au moins deux parois voûtées opposées munies au moins d'un puits dont les bords sont incurvés vers l'intérieur du réservoir selon un profil en arc de cercle et un renfort comportant un siège à chacune de ses extrémités évasé selon le même profil en arc de cercle que celui du puits pour s'ajuster dans le puits correspondant de chacune des deux parois opposées et maintenir l'écartement de ces deux parois.In order to meet these objectives, the present invention relates to a reservoir intended to contain a pressurized fluid and capable of being housed in a compartment of substantially parallelepiped shape, characterized in that it comprises at least two opposite vaulted walls provided with the less than one well, the edges of which are curved towards the inside of the tank according to a circular arc profile and a reinforcement comprising a seat at each of its ends flared according to the same circular arc profile as that of the well for adjust in the corresponding well of each of the two opposite walls and maintain the spacing of these two walls.
Avantageusement, le réservoir destiné à contenir du fluide sous pression et apte à se loger dans un compartiment d'un véhicule est également caractérisé en ce qu'il comprend au moins deux parois voûtées opposées comportant au moins un puits dont les bords sont incurvés vers l'intérieur du réservoir selon un profil sensiblement en arc de cercle et au moins renfort dont les extrémités sont évasées en forme de corolle selon le même profil en arc de cercle que celui du puits pour s'ajuster bord à bord avec le puits correspondant de chacune des deux parois opposées du réservoir et maintenir l'écartement de ces deux parois.Advantageously, the reservoir intended to contain pressurized fluid and capable of being housed in a compartment of a vehicle is also characterized in that it comprises at least two opposite vaulted walls comprising at least one well whose edges are curved towards the inside of the tank according to a profile substantially in an arc of a circle and at least reinforcement whose ends are flared in the shape of a corolla according to the same profile in an arc of circle as that of the well to adjust edge to edge with the corresponding well of each of the two opposite walls of the tank and maintain the spacing of these two walls.
Avantageusement, le renfort peut être constitué par un barreau plein reliant les sièges entre eux.Advantageously, the reinforcement can be constituted by a solid bar connecting the seats together.
Le renfort peut être constitué par un tube creux reliant les sièges entre eux.The reinforcement can be constituted by a hollow tube connecting the seats together.
De préférence, le réservoir selon l'invention est caractérisé en ce qu'au moins deux parois opposées comportant les puits présentent un profil en forme de voûte.Preferably, the reservoir according to the invention is characterized in that at least two opposite walls comprising the wells have a profile in the form of an arch.
De préférence encore, le réservoir selon l'invention est caractérisé en ce qu' au moins une des autres parois du réservoir est bombée.More preferably, the tank according to the invention is characterized in that at least one of the other walls of the tank is curved.
Le réservoir selon l'invention est avantageusement caractérisé en ce que l'intérieur du réservoir se présente sous la forme d'une voûte.The tank according to the invention is advantageously characterized in that the interior of the tank is in the form of a vault.
Le réservoir selon l'invention est avantageusement caractérisé en ce que le siège du renfort est appliqué sur une portion du puits dans lequel il est inséré. Le réservoir peut comporter deux ensembles de puits disposés suivant deux rangées parallèles dans lesquels des renforts sont engagés.The reservoir according to the invention is advantageously characterized in that the seat of the reinforcement is applied to a portion of the well in which it is inserted. The reservoir may include two sets of wells arranged in two parallel rows in which reinforcements are engaged.
Avantageusement, les renforts sont réalisés sous la forme d'une pièce unique dont les extrémités sont en corolle.Advantageously, the reinforcements are produced in the form of a single piece whose ends are in corolla.
Avantageusement encore, les renforts sont réalisés en au moins trois parties, l'une sensiblement cylindrique prolongée de part et d' autre par un capuchon en forme de corolle. Selon une caractéristique, chaque renfort est constitué par un tube creux reliant le bord des puits entre eux, réalisés sous la forme d'une pièce unique dont les extrémités sont en corolle.Advantageously also, the reinforcements are made in at least three parts, one substantially cylindrical extended on either side by a cap in the shape of a corolla. According to one characteristic, each reinforcement consists of a hollow tube connecting the edge of the wells to each other, made in the form of a single piece whose ends are corolla.
Les renforts peuvent également être réalisés en au moins trois parties, l'une sensiblement cylindrique prolongée de part et d'autre par un capuchon en forme de corolle.The reinforcements can also be made in at least three parts, one substantially cylindrical extended on either side by a cap in the shape of a corolla.
Un avantage du réservoir selon l'invention consiste en ce que sa structure lui permet d'être léger, d'être résistant et de pouvoir se déformer sans se rompre.An advantage of the reservoir according to the invention consists in that its structure allows it to be light, to be resistant and to be able to deform without breaking.
Un autre avantage encore de l'invention réside dans le fait que la structure du réservoir présente une continuité de surface entre les parois et les renforts, ce qui améliore la résistance du réservoir à la pression.Yet another advantage of the invention lies in the fact that the structure of the reservoir has surface continuity between the walls and the reinforcements, which improves the resistance of the reservoir to pressure.
D'autres caractéristiques, détails et avantages de l'invention ressortiront plus clairement à la lecture du complément de description donné ci-après en relation avec des dessins à titre d'exemples sur lesquels : la figure 1 est une vue du réservoir selon l' invention,Other characteristics, details and advantages of the invention will emerge more clearly on reading the additional description given below in relation to the drawings by way of examples in which: FIG. 1 is a view of the reservoir according to invention,
- la figure 2 est une vue perspective d'un huitième de réservoir représenté en maillage trois dimensions,FIG. 2 is a perspective view of an eighth of a reservoir shown in three-dimensional mesh,
- la figure 3 est une vue en coupe longitudinale de la face bombée d'un demi réservoir selon l'invention,FIG. 3 is a view in longitudinal section of the curved face of a half tank according to the invention,
- la figure 4 est une vue d'un renfort,FIG. 4 is a view of a reinforcement,
- la figure 5 est une vue d'une variante d'un renfort, - la figure 6 est une vue en coupe d'une portion de réservoir selon l'invention muni d'un renfort plein,FIG. 5 is a view of a variant of a reinforcement, FIG. 6 is a sectional view of a portion of tank according to the invention provided with a full reinforcement,
- la figure 7 est une vue en coupe d'une portion de réservoir selon l'invention muni d'un renfort creux,FIG. 7 is a sectional view of a portion of a reservoir according to the invention provided with a hollow reinforcement,
- la figure 8 est une autre vue en coupe longitudinale de la face bombée d'un demi réservoir selon l'invention.- Figure 8 is another view in longitudinal section of the curved face of a half tank according to the invention.
Le réservoir 1 représenté sur la figure 1 présente une forme générale bombée à six parois délimitant un ensemble de voûtes, deux parois supérieure 2 et inférieure 3, deux parois latérales 4 et 5 et deux parois avant 6 et arrière 7. Chacune des parois est obtenue à partir d'une feuille métallique conformée à la courbure voulue. Les parois 2 et 3 sont de plus grande dimension que les autres parois et sont réunies par des renforts décrits ci-après.The tank 1 shown in Figure 1 has a generally curved shape with six walls defining a set of arches, two upper walls 2 and lower 3, two side walls 4 and 5 and two front walls 6 and rear 7. Each of the walls is obtained from a metal sheet conforming to the desired curvature. Walls 2 and 3 are larger than the other walls and are joined by reinforcements described below.
Suivant une forme de réalisation choisie et représentée aux figures 2 et 3, le réservoir 1 peut être réalisé sous la forme de deux demi coquilles 8 assemblées suivant un plan longitudinal et réunies par des renforts 9 internes. Seul un quart d'une demi coquille est représenté sur la figure 2 pour des questions de commodité. Les deux demi coquilles 8 et les renforts 9 peuvent être assemblés par soudage. Les parois opposées 2 et 3 de chaque demi coquille se présentent sous la forme d'une voûte dont la concavité est dirigée vers l'intérieur du réservoir.According to an embodiment chosen and shown in Figures 2 and 3, the tank 1 can be made in the form of two half shells 8 assembled along a longitudinal plane and joined by internal reinforcements 9. Only a quarter of a half shell is shown in Figure 2 for convenience. The two half shells 8 and the reinforcements 9 can be assembled by welding. The opposite walls 2 and 3 of each half-shell are in the form of a vault whose concavity is directed towards the interior of the tank.
Sur la figure 2, on voit que la paroi supérieure voûtéeIn FIG. 2, it can be seen that the vaulted upper wall
2 est raccordée aux parois latérales adjacentes bombées 4 et 6 par un prolongement 10 permettant d'assurer une continuité dans l'évolution des angles entre la paroi voûtée et les parois bombées du réservoir, de façon à éviter selon l'invention toute arête vive. On obtient une régularité des formes voûtées pour répartir de manière homogène les contraintes en minimisant les moments de flexion dans les parois. Il en est de même de la paroi inférieure 3. Il n'est pas nécessaire que les parois 2 et 3 aient une forme symétrique dès que le prolongement 10 assure la continuité de surface entre les deux parois adjacentes. Le plan de joint 11 de la paroi 2 et des quatre parois latérales adjacentes 4-7 est de forme rectangulaire avec des arrondis au niveau des coins. Le rayon de courbure des faces bombées2 is connected to the adjacent curved side walls 4 and 6 by an extension 10 allowing continuity in the evolution of the angles between the vaulted wall and the curved walls of the tank, so as to avoid any sharp edge according to the invention. One obtains a regularity of the vaulted forms to distribute the stresses in a homogeneous way while minimizing the bending moments in the walls. It is the same for the bottom wall 3. It is not necessary that the walls 2 and 3 have a symmetrical shape as soon as the extension 10 ensures surface continuity between the two adjacent walls. The joint plane 11 of the wall 2 and the four adjacent side walls 4-7 is rectangular in shape with rounded corners. The radius of curvature of the curved faces
4-7 évolue progressivement vers le rayon de courbure des faces voûtées 2 et 3. Les deux parois voûtées 2 et 3 du réservoir comportent des puits 12 de profil en arc de cercle, dont les bords sont incurvés selon un profil continu avec celui des voûtes.4-7 progressively evolves towards the radius of curvature of the vaulted faces 2 and 3. The two vaulted walls 2 and 3 of the reservoir have wells 12 in profile in an arc of a circle, the edges of which are curved in a continuous profile with that of the vaults .
C'est la forme en multi-voûte des grandes parois 2 et 3 du réservoir qui optimise son volume utile dans un logement parallélépipédique, tout en homogénéisant les contraintes dans les parois . Le réservoir selon l'invention peut être réalisé de manière variée. On peut par exemple assembler par soudage les six parois 2-7 réalisées isolément avec des plans de joint analogues au joint 11 comme cela est visible sur la figure 2. On peut encore réaliser deux demi coquilles, éventuellement symétriques, que l'on assemble suivant un plan de joint quelconque. Ces deux demi coquilles sont obtenues par emboutissage et lorsqu'elles sont prévues symétriques, elles sont obtenues à partir du même moule. Les différents puits 12 des deux parois opposées 2 et 3 du réservoir sont disposés en vis-à-vis les uns des autres. Ils sont prévus pour recevoir les renforts 9. Les renforts permettent de reprendre les efforts des grandes parois voûtées 2 et 3 du réservoir, de façon à supprimer les moments de flexion à la jonction entre les parois voûtées et les parois bombées.It is the multi-vault shape of the large walls 2 and 3 of the tank which optimizes its useful volume in a parallelepiped housing, while homogenizing the stresses in the walls. The reservoir according to the invention can be produced in a variety of ways. One can for example assemble by welding the six walls 2-7 produced in isolation with joint planes similar to the joint 11 as can be seen in FIG. 2. One can also make two half shells, possibly symmetrical, which are assembled according to any joint plan. These two half shells are obtained by stamping and when they are provided symmetrical, they are obtained from the same mold. The different wells 12 of the two opposite walls 2 and 3 of the tank are arranged opposite one another. They are designed to receive the reinforcements 9. The reinforcements make it possible to take up the forces of the large vaulted walls 2 and 3 of the tank, so as to eliminate the bending moments at the junction between the vaulted walls and the curved walls.
Sur la figure 3, on a représenté une coupe de la paroi 2In Figure 3, there is shown a section of the wall 2
(ou 3) pratiquée au niveau des puits 12. Deux rangées de puits 12a et 12b sont prévues au niveau des parois 2 et 3. Chaque puits 12 présente un profil en arc de cercle orienté vers l'intérieur du réservoir et est terminé par un bord 14.(or 3) practiced at the level of the wells 12. Two rows of wells 12a and 12b are provided at the level of the walls 2 and 3. Each well 12 has a profile in an arc of a circle oriented towards the interior of the reservoir and is terminated by a edge 14.
Selon un premier mode de réalisation représenté à la figure 4, les renforts 9 sont constitués par une entretoise pleine évasée à chacune de ses extrémités, lui conférant ainsi une forme de soupape. Chaque renfort comporte une tigeAccording to a first embodiment shown in Figure 4, the reinforcements 9 are constituted by a full flared spacer at each of its ends, thus giving it a valve shape. Each reinforcement has a rod
13 dont le diamètre est identique à celui du bord 14 des puits 12 débouchant vers l'intérieur du réservoir et un siège 15 à chaque extrémité dont le rayon de courbure correspond à celui du profil en arc de cercle des puits 12 pratiqués dans les parois voûtées 2 et 3 du réservoir et dans lequel il est introduit. Selon un second mode de réalisation représenté à la figure 5, les renforts 9 sont constitués par un tube 16 évasé à chacune de ses extrémités pour délimiter un siège 17 dont le rayon de courbure correspond à celui du profil en arc de cercle des puits 12 pratiqués dans les parois voûtées 2 et 3 du réservoir. En relation avec les figures 6 et 7 incorporant les modes de réalisation des renforts représentés respectivement aux figures 4 et 5, la tige 13 et le tube 16 des renforts 9 viennent s'engager dans les puits 12 de la paroi du réservoir jusqu'à ce que le siège 15 ou 17 des renforts vienne s'ajuster en butée sur les bords du puits 12 au profil en arc de cercle. Une excellente étanchéité du réservoir est assurée en soudant le siège 15 ou 17 des renforts dans les puits 12 du réservoir. Dans l'exemple de réalisation choisi, le siège 15 ou 17 du renfort ne comble pas entièrement le puits 12 de la paroi 2 du réservoir en laissant libre une partie 18 ou 19 du puits 12.13, the diameter of which is identical to that of the edge 14 of the wells 12 opening towards the interior of the reservoir and a seat 15 at each end whose radius of curvature corresponds to that of the arcuate profile of the wells 12 formed in the vaulted walls 2 and 3 of the tank and into which it is introduced. According to a second embodiment shown in FIG. 5, the reinforcements 9 consist of a tube 16 flared at each of its ends to delimit a seat 17 whose radius of curvature corresponds to that of the arcuate profile of the wells 12 formed in the vaulted walls 2 and 3 of the tank. In relation to Figures 6 and 7 incorporating the embodiments of the reinforcements shown in Figures 4 and 5 respectively, the rod 13 and the tube 16 of the reinforcements 9 engage in the wells 12 of the wall of the tank until that the seat 15 or 17 of the reinforcements comes to adjust in abutment on the edges of the well 12 to the profile in an arc. Excellent sealing of the tank is ensured by welding the seat 15 or 17 of the reinforcements in the wells 12 of the tank. In the embodiment chosen, the seat 15 or 17 of the reinforcement does not completely fill the well 12 of the wall 2 of the reservoir, leaving a part 18 or 19 of the well 12 free.
Le tableau récapitulatif suivant donne une fourchette en mm des dimensions approximatives du réservoir selon 1' invention:The following summary table gives a range in mm of the approximate dimensions of the tank according to the invention:
La pression de rupture d'un réservoir ainsi réalisé avec des renforts tubulaires ou pleins est de 12.106 Pa pour une masse totale de l'ordre de 45 kg, un volume utile de 95 litres et un rapport volume utile/volume encombrement de Les modes de réalisation de l'invention décrits précédemment et représentés sur les figures ne sont nullement limitatifs et peuvent donner lieu à des variantes.The rupture pressure of a tank thus produced with tubular or full reinforcements is 12.10 6 Pa for a total mass of the order of 45 kg, a useful volume of 95 liters and a useful volume / bulk volume ratio of The embodiments of the invention described above and shown in the figures are in no way limiting and may give rise to variants.
Par exemple, la tige 10 des renforts 3 pourrait avoir un diamètre variable et être amincie vers le plan de joint 6.For example, the rod 10 of the reinforcements 3 could have a variable diameter and be thinned towards the joint plane 6.
C'est la forme en multi-voûte des grandes parois 2 du réservoir qui optimise son volume utile dans un logement de forme sensiblement parallélépipédique, tout en homogénéisant les contraintes dans les parois. Le réservoir ainsi obtenu peut être logé dans l'espace disponible du véhicule. Cet espace peut être délimité par plusieurs parallélépipèdes, c'est-à-dire un assemblage de surfaces élémentaires planes et circulaires.It is the multi-arch shape of the large walls 2 of the tank which optimizes its useful volume in a housing of substantially parallelepiped shape, while homogenizing the stresses in the walls. The tank thus obtained can be housed in the available space of the vehicle. This space can be delimited by several parallelepipeds, that is to say an assembly of elementary planar and circular surfaces.
Sur la figure 8, on a représenté une coupe de la paroi 2 pratiquée au niveau des puits 20. Deux rangées de puits 20a et 20b sont par exemple prévues au niveau de chaque paroi 2.FIG. 8 shows a section of the wall 2 made at the level of the wells 20. Two rows of wells 20a and 20b are for example provided at each wall 2.
Chaque puits 20 présente un profil en arc de cercle orienté vers l'intérieur du réservoir dont le bord terminal vient en continuité avec le bord du renfort 21 en vis-à-vis. Ainsi, on peut réaliser une soudure 22 bord à bord entre le puitsEach well 20 has a circular arc profile oriented towards the inside of the tank, the end edge of which comes in continuity with the edge of the reinforcement 21 opposite. Thus, one can carry out a weld 22 edge to edge between the well
20a et le renfort 21a qui ne modifie pas les contraintes dans le réservoir lorsque celui-ci est rempli avec un fluide sous pression. Sur la figure, on voit que le renfort 21a est tubulaire avec une extrémité évasée en forme de corolle ; mais, on pourrait utiliser de la même manière un renfort constitué par une tige pleine. Sur la partie droite de la figure, on a représenté un renfort 21b se présentant sous la forme d'un tube prolongé par un capuchon 23 présentant une extrémité tubulaire raccordée par la soudure 24 au renfort 21b et une extrémité évasée en forme de corolle raccordée au puits 20b par la soudure 25. Les soudures 24 et 25 sont réalisées comme expliqué précédemment bord à bord. Cette réalisation permet de mieux maîtriser le processus de fabrication. Dans la présente description, on entend par soudure bord à bord une soudure par assemblage jointif avec soudure recto-verso, un assemblage jointif en une seule soudure, un assemblage non jointif en une seule soudure avec latte amovible, un assemblage avec soudure sur bord soyé ou un assemblage avec soudure d'angle sur latte permanente. 20a and the reinforcement 21a which does not modify the stresses in the tank when the latter is filled with a pressurized fluid. In the figure, we see that the reinforcement 21a is tubular with a flared end in the shape of a corolla; but, one could use in the same way a reinforcement constituted by a solid rod. On the right part of the figure, there is shown a reinforcement 21b in the form of a tube extended by a cap 23 having a tubular end connected by the weld 24 to the reinforcement 21b and a flared end in the shape of a corolla connected to the well 20b by the weld 25. The welds 24 and 25 are produced as explained previously edge to edge. This achievement allows better control of the manufacturing process. In the present description, by edge-to-edge welding is meant welding by jointing with welding double-sided, a jointed joint in a single weld, a non-jointed joint in a single weld with a removable slat, an assembly with weld on a raised edge or an assembly with a corner weld on a permanent slat.

Claims

REVENDICATIONS
1- Réservoir (1) destiné à contenir du fluide sous pression et apte à se loger dans un compartiment de forme sensiblement parallélépipédique, caractérisé en ce qu' il comprend au moins deux parois voûtées opposées (2, 3) comportant au moins un puits (12) dont les bords sont incurvés vers l'intérieur du réservoir selon un profil sensiblement en arc de cercle et un renfort (9) comportant un siège (15, 17) à chacune de ses extrémités évasé selon le même profil en arc de cercle que celui du puits (12) pour s'ajuster dans le puits correspondant de chacune des deux parois opposées (2, 3) du réservoir et maintenir l'écartement de ces deux parois.1- Reservoir (1) intended to contain pressurized fluid and capable of being housed in a compartment of substantially parallelepiped shape, characterized in that it comprises at least two opposite vaulted walls (2, 3) comprising at least one well ( 12) whose edges are curved towards the inside of the tank in a profile substantially in an arc of a circle and a reinforcement (9) comprising a seat (15, 17) at each of its ends flared according to the same profile in an arc of a circle that of the well (12) to fit into the corresponding well of each of the two opposite walls (2, 3) of the reservoir and maintain the spacing of these two walls.
2- Réservoir destiné à contenir du fluide sous pression et apte à se loger dans un compartiment d'un véhicule, caractérisé en ce qu'il comprend au moins deux parois voûtées opposées (2) comportant au moins un puits (20) dont les bords sont incurvés vers l'intérieur du réservoir selon un profil sensiblement en arc de cercle et au moins renfort (21) dont les extrémités sont évasées en forme de corolle selon le même profil en arc de cercle que celui du puits2- Reservoir intended to contain pressurized fluid and capable of being housed in a compartment of a vehicle, characterized in that it comprises at least two opposite vaulted walls (2) comprising at least one well (20) whose edges are curved towards the inside of the reservoir according to a profile substantially in an arc of a circle and at least reinforcement (21) the ends of which are flared in the shape of a corolla according to the same profile in an arc of a circle as that of the well
(20) pour s'ajuster bord à bord avec le puits correspondant de chacune des deux parois opposées (2) du réservoir et maintenir l'écartement de ces deux parois. 3- Réservoir selon la revendication 1, caractérisé en ce que le renfort (9) est constitué par un barreau plein (13) reliant les sièges (15) entre eux.(20) to adjust edge to edge with the corresponding well of each of the two opposite walls (2) of the reservoir and maintain the spacing of these two walls. 3- Tank according to claim 1, characterized in that the reinforcement (9) is constituted by a solid bar (13) connecting the seats (15) between them.
4- Réservoir selon la revendication 1, caractérisé en ce que le renfort (9) est constitué par un tube creux (16) reliant les sièges (17) entre eux.4- Tank according to claim 1, characterized in that the reinforcement (9) consists of a hollow tube (16) connecting the seats (17) between them.
5- Réservoir selon la revendication 3 ou 4, caractérisé en ce que les deux parois opposées (2, 3) comportant des puits (12) présentent un profil en forme de voûte. 6- Réservoir selon l'une quelconque des revendications 3 à 5, caractérisé en ce qu'au moins une des autres parois (4- 7) du réservoir est bombée.5- Tank according to claim 3 or 4, characterized in that the two opposite walls (2, 3) having wells (12) have a profile in the form of an arch. 6- tank according to any one of claims 3 to 5, characterized in that at least one of the other walls (4- 7) of the tank is curved.
7- Réservoir selon la revendication 6, caractérisé en ce que l'intérieur du réservoir se présente sous forme de voûte .7- A tank according to claim 6, characterized in that the interior of the tank is in the form of an arch.
8- Réservoir selon l'une quelconque des revendications 3 à 7, caractérisé en ce que le siège (15, 17) des renforts (9) est appliqué sur une portion du puits (9) dans lequel il est inséré.8- Tank according to any one of claims 3 to 7, characterized in that the seat (15, 17) of the reinforcements (9) is applied to a portion of the well (9) in which it is inserted.
9- Réservoir selon l'une quelconque des revendications 3 à 8, caractérisé en ce qu'il comporte un ensemble de puits (12) disposés suivant deux rangées parallèles dans lesquels des renforts (12) sont engagés. 10- Réservoir selon la revendication 2, caractérisé en ce que chaque renfort (21) est constitué par un barreau plein reliant le bord des puits (20) opposés entre eux.9- Tank according to any one of claims 3 to 8, characterized in that it comprises a set of wells (12) arranged in two parallel rows in which reinforcements (12) are engaged. 10- Tank according to claim 2, characterized in that each reinforcement (21) is constituted by a solid bar connecting the edge of the wells (20) opposite to each other.
11- Réservoir selon la revendication 2, caractérisé en ce que chaque renfort (21) est constitué par un tube creux reliant le bord des puits (20) entre eux.11- Tank according to claim 2, characterized in that each reinforcement (21) is constituted by a hollow tube connecting the edge of the wells (20) between them.
12- Réservoir selon la revendication 10 ou 11, caractérisé en ce que les renforts (21) sont réalisés sous la forme d'une pièce unique dont les extrémités sont en corolle. 13- Réservoir selon la revendication 10 ou 11, caractérisé en ce que les renforts (21) sont réalisés en au moins trois parties, l'une sensiblement cylindrique prolongée de part et d'autre par un capuchon (23) en forme de corolle. 12- Tank according to claim 10 or 11, characterized in that the reinforcements (21) are made in the form of a single piece whose ends are corolla. 13- Tank according to claim 10 or 11, characterized in that the reinforcements (21) are made in at least three parts, one substantially cylindrical extended on either side by a cap (23) in the shape of a corolla.
EP00906424A 1999-03-31 2000-02-18 Reservoir for containing fluid under pressure and comprising internal reinforcements Revoked EP1135647B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9904009A FR2791613B3 (en) 1999-03-31 1999-03-31 RESERVOIR FOR CONTAINING PRESSURE FLUID COMPRISING INTERNAL REINFORCEMENTS WITH ADJUSTMENT EDGE TO EDGE
FR9904009 1999-03-31
PCT/FR2000/000408 WO2000058662A1 (en) 1999-03-31 2000-02-18 Reservoir for containing fluid under pressure and comprising internal reinforcements

Publications (2)

Publication Number Publication Date
EP1135647A1 true EP1135647A1 (en) 2001-09-26
EP1135647B1 EP1135647B1 (en) 2003-08-27

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP00906424A Revoked EP1135647B1 (en) 1999-03-31 2000-02-18 Reservoir for containing fluid under pressure and comprising internal reinforcements

Country Status (7)

Country Link
EP (1) EP1135647B1 (en)
AT (1) ATE248318T1 (en)
DE (1) DE60004779T2 (en)
ES (1) ES2203425T3 (en)
FR (1) FR2791613B3 (en)
PT (1) PT1135647E (en)
WO (1) WO2000058662A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10305397B4 (en) * 2003-02-11 2005-07-14 Dirk Dr.-Ing. Büchler pressure vessel
DE10329990B3 (en) * 2003-07-02 2005-04-21 Benteler Automobiltechnik Gmbh Pressure gas tank
EP4168705A1 (en) * 2020-06-17 2023-04-26 Plastic Omnium New Energies France Composite pressure vessel with reinforcement element

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE442554A (en) *
GB499366A (en) * 1938-07-15 1939-01-23 Ambi Budd Presswerk Gmbh A portable container for fluids under pressure
NL8201470A (en) * 1982-04-06 1983-11-01 En Reparatiebedrijf D E Gorter FLAT, PRESSURE RESISTANT METAL RESERVOIR, SUITABLE FOR HOLDING A PRESSURIZED MATERIAL.
NL8300434A (en) * 1983-02-04 1984-09-03 Handelsonderneming Compromis Z Automotive liquefied gas tank - is in two parts of circle-segment cross=section welded along lengthwise edges
FR2783034B1 (en) * 1998-09-08 2000-10-20 Giat Ind Sa TANK FOR CONTAINING PRESSURE FLUID WITH INTERNAL REINFORCEMENTS

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0058662A1 *

Also Published As

Publication number Publication date
DE60004779D1 (en) 2003-10-02
FR2791613B3 (en) 2001-05-04
ATE248318T1 (en) 2003-09-15
DE60004779T2 (en) 2004-03-18
ES2203425T3 (en) 2004-04-16
PT1135647E (en) 2004-01-30
EP1135647B1 (en) 2003-08-27
FR2791613A1 (en) 2000-10-06
WO2000058662A1 (en) 2000-10-05

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