WO2021013787A1 - Dispositif de fixation pour un composant a une paroi d'un reservoir a carburant - Google Patents
Dispositif de fixation pour un composant a une paroi d'un reservoir a carburant Download PDFInfo
- Publication number
- WO2021013787A1 WO2021013787A1 PCT/EP2020/070434 EP2020070434W WO2021013787A1 WO 2021013787 A1 WO2021013787 A1 WO 2021013787A1 EP 2020070434 W EP2020070434 W EP 2020070434W WO 2021013787 A1 WO2021013787 A1 WO 2021013787A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fuel tank
- wall
- component
- anchoring element
- fixing
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/53—Joining single elements to tubular articles, hollow articles or bars
- B29C66/532—Joining single elements to the wall of tubular articles, hollow articles or bars
- B29C66/5324—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially annular, i.e. of finite length
- B29C66/53245—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially annular, i.e. of finite length said articles being hollow
- B29C66/53246—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially annular, i.e. of finite length said articles being hollow said single elements being spouts, e.g. joining spouts to containers
- B29C66/53247—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially annular, i.e. of finite length said articles being hollow said single elements being spouts, e.g. joining spouts to containers said spouts comprising flanges
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
- B60K15/03177—Fuel tanks made of non-metallic material, e.g. plastics, or of a combination of non-metallic and metallic material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
- B29C66/712—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined the composition of one of the parts to be joined being different from the composition of the other part
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/04—Polymers of ethylene
- B29K2023/08—Copolymers of ethylene
- B29K2023/086—EVOH, i.e. ethylene vinyl alcohol copolymer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
- B60K2015/03328—Arrangements or special measures related to fuel tanks or fuel handling
- B60K2015/03453—Arrangements or special measures related to fuel tanks or fuel handling for fixing or mounting parts of the fuel tank together
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
- B60K2015/03328—Arrangements or special measures related to fuel tanks or fuel handling
- B60K2015/03453—Arrangements or special measures related to fuel tanks or fuel handling for fixing or mounting parts of the fuel tank together
- B60K2015/0346—Arrangements or special measures related to fuel tanks or fuel handling for fixing or mounting parts of the fuel tank together by welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
- B60K2015/03328—Arrangements or special measures related to fuel tanks or fuel handling
- B60K2015/03453—Arrangements or special measures related to fuel tanks or fuel handling for fixing or mounting parts of the fuel tank together
- B60K2015/03467—Arrangements or special measures related to fuel tanks or fuel handling for fixing or mounting parts of the fuel tank together by clip or snap fit fittings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
- B60K2015/03486—Fuel tanks characterised by the materials the tank or parts thereof are essentially made from
- B60K2015/03493—Fuel tanks characterised by the materials the tank or parts thereof are essentially made from made of plastics
Definitions
- the invention relates to an attachment device for a component to a wall of a fuel tank, as well as a fuel tank comprising said attachment device for a component. More particularly, the invention relates to a method of manufacturing a fuel tank comprising said fixing device for a component to a wall of a fuel tank.
- Fuel tanks of various types must generally meet the standards of impermeability and permeability depending on the type of use for which they are designed and the environmental requirements which they must meet.
- a barrier layer to fuels made of material impermeable to the latter, generally a resin, such as "EVOH" for ethylene vinyl alcohol, in English, ethylene vinyl alcohol.
- EVOH is a partially hydrolyzed ethylene vinyl acetate copolymer.
- the fuel-impermeable layer is generally an intermediate layer sandwiched between two fuel-permeable layers, made, for example, of a thermoplastic material such as HDPE for high density polyethylene, in English, high density polyethylene.
- a fixing device for a component can be used in particular in a fuel tank.
- the components are generally molded by separate molding processes and must be welded to the main body of the tank. In particular, these components must not only be welded to the main body of the tank with adequate mechanical strength, but also without compromising the fuel impermeable barrier property of a fuel tank.
- fuel tanks located in particular on board a vehicle are connected to other components, generally impermeable to fuel, requiring the presence of several openings in the wall of the tank around which the components are attached. These openings, creating discontinuities in the barrier layer of the wall of a tank, represent a high risk of fuel leakage or permeation, since the component attachment device cannot be in contact with the fuel impermeable layer of the tank. the wall of the tank to form a sealed volume.
- the precise position of the fuel-impermeable layer of the tank wall is unknown and the too deep insertion of the fixing device for a component in the wall of a tank increases the risk of perforating the fuel-impermeable layer.
- the distance from the impermeable layer of the component to the impermeable layer of the tank wall depends on the total thickness of the tank wall, the distribution of the layer thickness of the tank wall and the stretching of the tank wall. wall in the welding zone inherent in the blow molding process, if such a process is used to fabricate the tank wall.
- Document US 2012/0138210 A1 discloses a method of welding a component to a plastic fuel tank comprising a component with a barrier layer to fuels, said barrier layer to fuels of said component approaching the barrier layer to fuels of said tank plastic during said method of welding a component to a plastic fuel tank for the purpose of leading to improved fuel barrier performance of the assembly, said assembly being composed of said component and said plastic fuel tank.
- Such an assembly has the disadvantages of having an additional outer layer on the tank, in order to allow said component to be welded to a plastic fuel tank, since the two elements of said assembly are incompatible.
- an additional barrier layer to fuels such an assembly having a gripping surface, said gripping surface being obtained during a welding method by simple juxtaposition of said elements, resulting in therefore, mechanical strength decreases.
- Document EP 3124308 B1 discloses a fuel tank comprising a component welded to a fuel tank and an insert directly inserted into the wall of a fuel tank by overmolding, said insert is fully inserted into the external wall of a fuel tank.
- fuel and has a polyamide or polyphthalamide core enveloped by an outer layer of modified high density polyethylene.
- Such a component poses the problem of attachment of the welded component was due to the chemical compatibility of the welded component with a fuel tank. Indeed, the component must imperatively be chemically compatible with a fuel tank in order to obtain a desired mechanical strength to avoid any unwanted tearing of said component.
- the chemical compatibility of the component necessary for its attachment to a fuel tank induces fuel permeability of said fuel tank.
- Such a component therefore has the disadvantage of requiring an additional fuel impermeable layer affixed to the internal surface of the component. Consequently, the assembly, composed of said insert and of said component, has several escape routes for the fuels from the tank, located in particular between said insert and said additional fuel-impermeable layer of the component.
- document EP 3124308 B1 in order to avoid excessive permeability of the component, document EP 3124308 B1 must completely insert said insert into the wall of a reservoir. Therefore, requiring additional parts and steps in carrying out this invention.
- the objective of the invention is in particular to overcome these drawbacks of the prior art.
- an objective of the invention in at least one of its embodiments, is to provide a device for fixing a component to a wall of a fuel tank requiring a reduced number of elements, namely a fixing device and at least one component welded to said device, being of a nature incompatible with the wall of a fuel tank.
- the invention in at least one of its embodiments, further aims to provide a device for fixing a component to a wall of a fuel tank having increased mechanical strength and improved sealing around an opening. on the wall of a fuel tank, in particular by controlling the permeation pathways, existing fuel leaks.
- the invention also aims, in one of its embodiments, to provide a fuel tank comprising a device for fixing a component to a wall of a fuel tank.
- Another object of the invention in at least one of its embodiments, is to implement a method of manufacturing a device for fixing a component to a wall of a fuel tank.
- the invention relates to an attachment device for a component to a fuel tank.
- such a device for fixing a component to a wall of a fuel tank comprising a thickness comprises an anchoring element capable of being secured to said wall of the fuel tank and of penetrating at least partially into said thickness; a link member comprising a first end and a second end; a first means for connecting said first end to said anchoring element, and a second means for connecting said second end to said component.
- the general principle of the invention is based on an optimization of the mechanical resistance, between said fixing device for a component and said wall of a fuel tank, while keeping a low permeability to fuels of a fuel tank, without the use of seal.
- the invention makes it possible to form an interface making the attachment of components incompatible with a wall of a fuel tank. This latter principle therefore makes it possible to be able to fix any type of component to a wall of a fuel tank by any type of fixing technique.
- the invention is also based on an optimization of the method for producing the device for a component to a wall of a fuel tank, by reducing the number of steps in the method for obtaining the device for fixing a component to a wall of the fuel tank.
- the invention is based on a completely new and inventive approach for producing a device for fixing a component to a wall of a fuel tank comprising an anchoring element capable of being secured to a wall of the fuel tank. a fuel tank, a connecting element comprising a first end and a second end, a first means for connecting said first end to said anchoring element and a second means for connecting said second end to said component.
- component is intended to denote the various elements which can be attached to said component fixing device to a wall of a fuel tank, such as a filler neck, a ventilation valve, a valve or another shutter plate, these components are given by way of illustrative and non-limiting example.
- anchoring element capable of being integral with said wall of the fuel tank is understood to denote the fact that an anchoring element has a face oriented towards the wall of a fuel tank and that said anchoring element is at least partially anchored in the wall of a fuel tank, preferably totally anchored in the wall of a fuel tank.
- connecting element comprising a first end and a second end
- this element can be connected with the anchoring element by a first connection means located on a first end and connected with a component by a second connection means located on a second end.
- the expression “a first end” is understood to denote the fact that the part of the connecting element of the device for fixing a component to a wall of a fuel tank ends in the vicinity of the element of. anchoring the attachment device for a component to a wall of a fuel tank.
- a second end is understood to denote the fact that the part of the connecting element of the device for fixing a component to a wall of a fuel tank ends in the vicinity of said component.
- components not compatible with a wall of a fuel tank is meant the fact that these two elements, namely components and a wall of a fuel tank, are incompatible. In other words, these elements cannot be connected to each other, because said elements are each composed of materials having poor miscibility with each other.
- said elements are each composed of materials having poor miscibility with one another.
- said elements are each composed of materials having poor miscibility with one another.
- such a fastening device for a component to a wall of a fuel tank comprising at least one anchoring element adapted to be integral with a wall of a fuel tank; at least one connecting element suitable for connecting said component to said anchoring element; the anchoring element comprising a first connection means adapted to connect said connecting element to said anchoring element; the connecting element comprising a second connection means capable of connecting said component to said connecting element.
- such an attachment device for a component to a wall of a fuel tank makes it possible to obtain increased mechanical strength between said attachment device for a component and said wall of a fuel tank, without the use of gasket or additional fuel impermeable tape. Therefore, the number of elements forming the invention is reduced, thereby reducing the number of steps in the manufacturing process of said fixing device for a component to a wall of a fuel tank, involving a decrease in the production cost of said fixing device for a component to a wall of a fuel tank.
- such a device for fixing a component to a wall of a fuel tank comprises a connecting element comprising a third connection means adapted to be connected to the first connection means of said anchoring element.
- such a fixing device for a component to a wall of a fuel tank makes it possible to obtain a connection between different connection means, allowing a wider choice of possibilities as to the realization of the connection between the element of connection and the anchoring element of said fixing device for a component to a wall of a fuel tank, while optimizing the mechanical resistance
- third means of connection is meant the fact of the reciprocity of connection of the first means of connection.
- first connection means refers to the connection between the link member and the anchor member and the third connection means refers to the connection between the anchor member and the link member.
- the device for fixing a component to a wall of a fuel tank according to the invention is such that the anchoring element is a ring of square, polygonal, rectangular, or cylindrical shape, according to one embodiment.
- the anchoring element is cylindrical in shape, in which the diameter is smaller than its height.
- the anchoring element of the device for fixing a component to a wall of a fuel tank forming a ring of polygonal, rectangular or cylindrical square shape, in a preferred embodiment, a ring of cylindrical shape
- a fluid in its center such as air or fuel in the direction of flow and reflux. Since the ring of cylindrical shape is more easily produced, said ring of cylindrical shape reduces thus the associated costs of production. The associated production costs are reduced by the possibility of simultaneously carrying out a drilling step and an overmolding step.
- the ring of cylindrical shape of the fixing device for a component to a wall of a fuel tank allows a reinforced seal, as well as an easier assembly to obtain during the production of said fixing device for a component. to a wall of a fuel tank.
- the device for fixing a component to a wall of a fuel tank according to the invention is such that said first connection means is chosen from connections of male and female type, such as hooping, riveting, threading, screwing, clipping, dovetail assembly, straight shank assembly, undercut or undercut assembly, and connections such as welding, gluing, mechanical assembly with seal, overmolding, preferably, said connection means is a overmolding, more preferably overmolding by bi-injection.
- connection techniques allow an increase in the mechanical resistance between two elements made of compatible or non-compatible materials, while maintaining tightness of the entire fuel tank.
- connections of male and female type is meant to denote the connections composed of two distinct parts, the ends of these two distinct parts of which define on the one hand, the protuberances of the male part, intended on the other hand , to be inserted into the corresponding housings of the female part.
- the device for fixing a component to a wall of a fuel tank according to the invention is such that said first connection means and said third connection means are able to be connected, said connection is chosen from male and female type connections, such as shrinking, riveting, threading, screwing, clipping, assembly dovetail, straight shank assembly, undercut or undercut assembly, and connections of the welding, gluing, mechanical assembly with seal, overmolding type, preferably, said connection means is an overmolding, more preferably an overmolding by bi-injection .
- connection techniques allow an increase in the mechanical resistance between two elements made of compatible or non-compatible materials, while maintaining tightness of the entire fuel tank.
- the fixing device for a component to a wall of a fuel tank according to the invention is fixed by overmolding.
- said fixing device for a component has a surface which lies in front of the fuel impermeable layer of the wall.
- the position of said elements, constituting said fixing device for a component to a wall of a fuel tank thus being predetermined. Therefore, the fuel penetration path is controlled.
- the distance between said fixing device and the fuel impermeable layer is controlled during the overmolding process.
- the attachment device for a component to a wall of a fuel tank is made in one piece consisting of two elements, which reduces costs, simplifies positioning and maintenance in the mold of the overmolding.
- the device for fixing a component to a wall of a fuel tank according to the invention is such that said second connection means is chosen from connections of male and female type, such as hooping, riveting, threading, screwing, clipping, dovetail assembly, straight shank assembly, undercut or undercut assembly, and connections of the welding, gluing, mechanical assembly with seal, overmolding, preferably, said connection means is a welding.
- connections of male and female type such as hooping, riveting, threading, screwing, clipping, dovetail assembly, straight shank assembly, undercut or undercut assembly, and connections of the welding, gluing, mechanical assembly with seal, overmolding
- said connection means is a welding.
- the device for fixing a component to a wall of a fuel tank according to the invention is such that said anchoring element comprises a plastic material, said plastic material being chosen from among the plastic materials to be polyolefin base, preferably, said plastic material is polyethylene, more preferably, said plastic material is anhydrous maleic grafted polyethylene.
- the anchoring element can be at least partially anchored in the wall of a fuel tank, preferably completely anchored in the wall of a fuel tank allowing increased mechanical strength between said fixing device for a component and said wall of a fuel tank.
- the anchoring element is made from a plastic material compatible with the wall of a fuel tank. Namely, in the invention, the material constituting the anchoring element being anhydrous maleic graft polyethylene and the material making up the wall of a fuel tank being high density polyethylene.
- the anchoring element comprises at least 50% by weight of polyolefin, preferably 75% by weight of polyolefin, more preferably 90% by weight of polyolefin, most preferably 99% by weight of polyolefin.
- the device for fixing a component to a fuel tank wall according to the invention is such that said connecting element comprises a plastic material, said plastic material being chosen from plastic materials based on polyoxymethylene. , polyphenylene sulfide, polyamide, polyphthalamide, polyetheretherketone, polyamide imide, polyaryletherketone, polyketone or polyolefin, preferably, said plastic material is polyamide.
- the connecting element can be linked with any type of component by different connection technique, because said connecting element is based on a plastic material compatible with a component.
- polyamide-based is understood to denote the fact that the anchoring element comprises at least 50% by weight of polyamide, preferably 75% by weight of polyamide, more preferably 90% by weight of polyamide, most preferably 99% by weight of polyamide.
- the device for fixing a component to a fuel tank wall is such that said connecting element comprises a plastic material, said plastic material being chosen from plastic materials based on polyoxymethylene. , polyphenylene sulfide, polyamide, polyphthalamide, polyetheretherketone, polyamide imide, polyaryletherketone, polyketone or polyolefin, preferably said plastic material is polyphthalamide.
- the connecting element can be linked with any type of component by different connection technique, because said connecting element is based on a plastic material compatible with a component.
- the expression “based on polyphthalamide” is intended to denote the fact that the anchoring element comprises at least 50% by weight of polyphthalamide, preferably 75% by weight of polyphthalamide, more preferably 90% by weight of polyphthalamide, most preferably 99% by weight of polyphthalamide.
- the device for fixing a component to a wall of a fuel tank is such that said anchoring element comprises at least a part having dimensions greater than the dimensions of said first means for connecting said fixing device for a component to a fuel tank, said part of said anchoring element being positioned opposite to said first means for connecting the component attachment device to a wall of a fuel tank.
- the attachment device for a component to a wall of a fuel tank provides increased mechanical strength by a specific shape ensuring improved mechanical anchoring.
- said part of said anchoring element being positioned opposite said first means of connection of the component fixing device to a wall of a fuel tank
- anchoring the fastening device for a component to a wall of a fuel tank is meant to denote the lower part of the element d. anchoring the fastening device for a component to a wall of a fuel tank.
- the concepts of lower (es) or upper (s) are defined with respect to the final location of the fixing device for a component to a wall of a fuel tank and are defined taking as reference the wall of a fuel tank, to which said attachment device for a component is attached. A lower edge of an element being closer to the wall of a fuel tank than an upper edge of the same element.
- the device for fixing a component to a wall of a fuel tank according to the invention is such that said anchoring element comprises a part capable of being fused to said wall of said fuel tank.
- said fusion of the anchoring element to a wall of a fuel tank makes it possible to obtain increased mechanical resistance, by reinforcing the cohesion of two elements, the two elements being said anchoring element of the fuel tank.
- device for fixing a component to a wall of a fuel tank and said wall of a fuel tank is such that said anchoring element comprises a part capable of being fused to said wall of said fuel tank.
- a wall capable of being fused is meant to denote a plastic material "chemically compatible” with another plastic material, the fact that the plastic materials each comprise chemical species which can be welded together, without requiring the addition of material. additional.
- chemically compatible plastic materials are able to bond intimately together by fusion, and in particular to achieve molecular entanglement of polymer chains between them.
- Welding of the two plastic materials is understood as bringing the two plastic materials into contact in such a way that the phenomenon of self-adhesion occurs at the point of contact.
- the phenomenon of self-adhesion occurs by providing heat at the point of contact.
- the process of welding two materials together under the action of heat is called heat sealing.
- welding is used synonymously with "heat sealing”
- molecular entanglement of polymer chains of a plastic material and another plastic material is meant two plastic materials pressed together in such a way that a self-adhesion phenomenon occurs.
- self-adhesion is the phenomenon describing the intermolecular diffusion and entanglement of molecular chains through a polymer interface forming a strong bond.
- adhesion which concerns surface energy (or secondary chemical bonds between two materials that are either similar or not similar)
- self-adhesion concerns the entanglement of molecular chains and secondary bonds for polymer chains of similar materials, i.e. chemically compatible materials. Under ideal conditions, diffusion is complete when the interface between the two polymer materials is no longer discernible from the mass of each of the two polymer materials.
- thermoplastic polymer materials once the thermoplastic polymer - thermoplastic polymer contact is obtained at the interface, intermolecular diffusion and entanglement is necessary to complete the process and form a good weld.
- Such a self-adhesion phenomenon is for example described in the publication “Plastics and Composites Welding Handbook”, ISBN 1-5990-313-1, page 23.
- the fixing device for a component to a wall of a fuel tank is such that said part having dimensions greater than the dimensions of said first connection means of said fixing device for a component to a fuel tank, is capable of being fused to the wall of a fuel tank, preferably on at least a fraction of said part, more preferably on a fraction formed by at least one end of a part of the anchoring element having dimensions greater than the dimensions of said first means of connection of said fixing device for a component to a fuel tank, said part capable of being fused, being inscribed in a plane parallel to the impermeable layer of said wall a fuel tank.
- the fusion of the anchoring element to a wall of a fuel tank and the specific form of anchoring provide an optimized mechanical resistance of said fixing device for a component to a wall of a fuel tank at said wall of a fuel tank.
- this alternative embodiment allows greater mechanical resistance of said fixing device for a component to a wall of a fuel tank to said wall of a fuel tank by the fact that this mechanical resistance is obtained, not more by one method but by the accumulation of two different methods.
- the device for fixing a component to a wall of a fuel tank is such that said wall of said fuel tank has a thickness and in that said anchoring element penetrates at least partially into said thickness .
- this penetration allows increased mechanical strength of the attachment device for a component to a wall of a fuel tank to a wall of a tank, while maintaining low permeability of a fuel tank.
- such a device for fixing a component to a wall of a fuel tank comprising an anchoring element at least partially anchored in the wall of a fuel tank, preferably the anchoring element is fully anchored in the wall of a fuel tank.
- this anchoring allows increased mechanical strength of the attachment device for a component to a wall of a fuel tank to a wall of a tank, while maintaining low permeability of a fuel tank.
- the device for fixing a component to a wall of a fuel tank according to the invention is such that said wall of said fuel tank has a layer impermeable to fuel and in that said element of anchor is not in contact with said layer. Therefore, the attachment device for a component to a wall of a fuel tank according to the invention is such that the impermeable layer of the tank wall and said attachment device are spaced apart. In a preferred embodiment, the shortest distance between the fuel impermeable layer of the fuel tank wall and the attachment device for a component to a wall of a fuel tank is a few micrometers.
- having the impermeable layer of the tank wall spaced from the attachment device for a component to a wall of a fuel tank allows the integrity of the tank to be maintained as to its impermeability.
- maintaining a distance between the impermeable layer of the wall of a fuel tank and the attachment device for a component to a wall of a fuel tank allows the attachment device for a component to a wall of a fuel tank from penetrating inside the fuel tank wall without risking puncturing the impermeable layer of the fuel tank wall.
- the possible routes of fuel leakage are reduced.
- Another object of the invention is to provide a fuel tank comprising a device for fixing a component to a wall of a fuel tank according to the invention.
- the anchoring element is integral with said wall of the fuel tank without passing through it.
- said wall of the fuel tank comprises a layer made of a polyolefin-based material into which the anchoring element penetrates.
- said wall of the fuel tank comprises a barrier layer to fuels, for example made from a material based on ethylene vinyl alcohol, located under the layer made from a material based on polyolefin.
- said wall of the fuel tank comprises a barrier layer to fuels located under the layer made of a polyolefin-based material
- the barrier layer to fuels is closer to the internal volume of the fuel tank than the layer made of a polyolefin-based material. It will thus be understood that the anchoring element does not come into contact with the barrier layer to fuels. The fixing device therefore makes it possible not to compromise the tightness of the tank provided by the barrier layer to fuels.
- the invention also relates to a method of manufacturing a fuel tank comprising at least the following steps: ⁇ providing a wall of a fuel tank having a thickness;
- Figure la shows a device for fixing a component to a wall of a fuel tank according to the invention.
- Figure lb shows an enlargement of a fastening device for a component to a wall of a fuel tank according to the invention.
- FIG. 2 shows a cross section of a fastening device for a component to a wall of a fuel tank according to the invention shown in Figure la.
- FIG. 3 shows a cross section of the device for fixing a component to a wall of a fuel tank according to the invention, in a second particular embodiment, in which the device for fixing a component to a wall of a fuel tank includes a triangular shaped anchor member, partially anchored in the wall of a fuel tank.
- Figure 4 illustrates a cross section of the attachment device for a component to a wall of a fuel tank according to the invention, in a third particular embodiment, in which, said attachment device for a component to a wall of a fuel tank comprises an anchoring element of triangular shape, fully anchored in the wall of a fuel tank.
- FIG. 5 shows a cross section, in a fourth particular embodiment, of the device for fixing a component to a wall of a fuel tank according to the invention, in which the part of the anchoring element comprising the largest dimensions has a protuberance allowing a new melting point of the anchoring element to a wall of a fuel tank.
- Figure 6 depicts a cross section of the attachment device for a component to a wall of a fuel tank according to the invention, in a fifth particular embodiment, in which, said attachment device for a component to a wall of a fuel tank comprises a connecting element, comprising a first end defining a first connection means by a triangular-shaped core surrounded by an anchoring element.
- FIG. 1a an embodiment of a device for fixing a component to a wall (101) of a fuel tank (100) according to the invention is presented.
- the device for fixing a component to a wall (101) of a fuel tank (100) comprises a connecting element (2) capable of being connected to a component, said component not being shown in FIG. 1 a.
- FIG. 1b shows an enlargement of the embodiment of a device (10) for fixing a component to a wall (101) of a fuel tank (100) according to the invention illustrated in FIG.
- the device for fixing a component to a wall (101) of a fuel tank (100) comprises a connecting element (2) comprising a second connection means (5) adapted to connect a component to a second end (21 ), said component not being shown in figure lb.
- FIG 2 shows a cross section of an embodiment of a device (10) for fixing a component (1) to a wall (101) of a fuel tank (100) according to the invention illustrated in figure 1.
- the fixing device (10) comprises an anchoring element (3) adapted to be secured to said wall (101) of the fuel tank (100), as well as a connecting element (2) comprising a first end (20) defining a first connection means (4) to said anchoring element, said connection means (4) being an overmolding by bi-injection.
- the device (10) for fixing a component (1) to a wall (101) of a fuel tank (100) comprises a second connection means (5) connecting the second end (21) of said connecting element (2). ) said component (1), said second connection means (5) being a solder.
- the fixing device (10) for a component (1) to a wall (101) of a fuel tank (100) also comprises an anchoring element (3) in which said anchoring element (3) has a portion fused (30) to said wall (101) of said reservoir (100), said portion fused (30) to said wall (101) of said reservoir (100) is a portion formed by at least one end of a portion of the anchoring element (3) having the largest dimension of said anchoring element (3).
- said anchoring element (3) of said device has two points of fusion (30) with said wall (101) of said reservoir (100).
- the wall (101) of a fuel tank (100) also has a thickness (102) in that said anchoring element (3) penetrates at least partially into said thickness (102).
- the anchoring element (3) of the device (10) for fixing a component (1) to a wall of a fuel tank (100) is not in contact of the fuel impermeable layer (103) of a fuel tank
- FIG. 3 shows a cross section of the device (10) for fixing a component (1) to a wall (101) of a fuel tank (100) according to the invention, in a second particular embodiment.
- the device (10) for fixing a component (1) to a wall (101) of a fuel tank (100) comprises an anchoring element (3) capable of being secured to said wall (101) of the fuel tank (100), as well as a connecting element (2) comprising a first end (20) defining a first connection means (4) to said anchoring element, said connection means (4) being an overmolding by bi-injection.
- the device (10) for fixing a component (1) to a wall (101) of a fuel tank (100) comprises a second connection means (5) connecting the second end (21) of said connecting element (2).
- the fixing device (10) for a component (1) to a wall (101) of a fuel tank (100) also comprises an anchoring element (3) in which said anchoring element (3) has a portion fused (30) to said wall (101) of said reservoir (100), said portion fused (30) to said wall (101) of said reservoir (100) is a portion formed by at least one end of a portion of the anchoring element (3) having the largest dimension of said anchoring element (3).
- said anchoring element (3) of said device has two points of fusion (30) with said wall (101) of said reservoir (100).
- the wall (101) of a fuel tank (100) also has a thickness (102) in that said anchoring element (3) penetrates at least partially into said thickness (102).
- the anchoring element (3) of the device (10) for fixing a component (1) to a wall of a fuel tank (100) is not in contact with the fuel impermeable layer (103) a fuel tank (100).
- the anchoring element (3) is in triangular form.
- the triangular shape of the anchoring element (3) of the device (10) for fixing a component (1) to a wall (101) of a fuel tank (100) is given by way of simple illustrative and non-limiting example.
- the anchoring element (3) according to the invention can take, among others, a trapezoidal, spherical, helical, cubic, rectangular or any other regular or irregular geometric shapes.
- FIG. 4 illustrates a cross section of the device (10) for fixing a component (1) to a wall (101) of a fuel tank (100) according to the invention, in a third particular embodiment.
- the device (10) for fixing a component (1) to a wall (101) of a fuel tank (100) comprises an anchoring element (3) capable of being secured to said wall (101) of the fuel tank (100), as well as a connecting element (2) comprising a first end (20) defining a first connection means (4) to said anchoring element, said connection means (4) being an overmolding by bi-injection.
- the device (10) for fixing a component (1) to a wall (101) of a fuel tank (100) comprises a second connection means (5) connecting the second end (21) of said connecting element (2).
- the fixing device (10) for a component (1) to a wall (101) of a fuel tank (100) also comprises an anchoring element (3) in which said anchoring element (3) has a portion fused (30) to said wall (101) of said reservoir (100), said portion fused (30) to said wall (101) of said reservoir (100) is a portion formed by at least one end of a portion of the anchoring element (3) having the largest dimension of said anchoring element (3).
- said anchoring element (3) of said device has two points of fusion (30) with said wall (101) of said reservoir (100).
- the wall (101) of a fuel tank (100) also has a thickness (102) in that said anchoring element (3) completely penetrates said thickness (102).
- the anchoring element (3) of the device (10) for fixing a component (1) to a wall of a fuel tank (100) is not in contact with the fuel impermeable layer (103) a fuel tank (100).
- the anchoring element (3) is of triangular shape. The triangular shape of the anchoring element (3) of the device (10) for fixing a component (1) to a wall (101) of a fuel tank
- the anchoring element (3) according to the invention can take, among others, a trapezoidal, spherical, helical, cubic, rectangular or any other regular or irregular geometric shapes.
- Figure 5 depicts a cross section of the device (10) for fixing a component (1) to a wall (101) of a fuel tank (100) according to the invention, in a fourth particular embodiment.
- the device (10) for fixing a component (1) to a wall (101) of a fuel tank (100) comprises an anchoring element (3) to be secured to said wall (101) of the fuel tank (100), as well as a connecting element (2) comprising a first end (20) defining a first connection means (4) to said anchoring element, said connection means (4) being an overmolding by bi-injection.
- the device (10) for fixing a component (1) to a wall (101) of a fuel tank (100) comprises a second connection means (5) connecting the second end (21) of said connecting element (2).
- the fixing device (10) for a component (1) to a wall (101) of a fuel tank (100) also comprises an anchoring element (3) in which said anchoring element (3) has a protuberance, in the lower part of said anchoring element (3), oriented towards the wall (102) of a fuel tank (100) allowing a new melting point (30) of the anchoring element (3) to a wall
- the assembly consisting of the device (10) for fixing a component (1) to a wall (101) of a fuel tank (100) and a fuel tank (100) comprising said fixing device (10) for a component (1).
- the fixing device (10) for a component (1) to a wall (101) of a fuel tank (100) also comprises an anchoring element (3) in which said anchoring element (3) has a portion fused (30) to said wall (101) of said reservoir (100), said portion fused (30) to said wall (101) of said reservoir (100) is a portion formed by at least one end of a portion of the 'anchor element (3) having the largest dimension of said anchor element (3).
- said anchoring element (3) of said device has three points of fusion (30) with said wall (101) of said reservoir (100).
- the wall (101) of a fuel tank (100) also has a thickness (102) in that said anchoring element (3) completely penetrates said thickness (102).
- the anchoring element (3) of the device (10) for fixing a component (1) to a wall of a fuel tank (100) is not in contact with the fuel impermeable layer (103) a fuel tank (100).
- the anchoring element (3) has a triangular shape.
- the triangular shape of the anchoring element (3) of the device (10) for fixing a component (1) to a wall (101) of a fuel tank (100) is given by way of simple illustrative example. and not limiting.
- the anchoring element (3) according to the invention can take, among others, a trapezoidal, spherical, helical, cubic, rectangular or any other regular or irregular geometric shapes.
- FIG. 6 shows another embodiment of the fixing device by a cross section of the fixing device (10) for a component (1) according to the invention, in a fifth particular embodiment.
- the device (10) for fixing a component (1) comprises an anchoring element (3), as well as a connecting element (2) comprising a first end (20) defining a first connection means ( 4) said anchoring element, said connection means (4) being an overmolding by bi-injection.
- the fixing device (10) for a component (1) also comprises an anchoring element (3) in which said anchoring element (3) has a fusible part (30), said fusible portion.
- (30) is a part formed by at least one end of a part of the anchoring element (3) having the largest dimension of said anchoring element (3).
- the device (10) for fixing a component (1) comprises a connecting element (2) comprising a first end (20) defining a first connection means (4) by a core of triangular shape surrounded by an anchoring element (3).
- the triangular shapes of the anchoring element (3) and of the first connection means (4) of the device (10) for fixing a component (1) is given by way of simple illustrative and non-limiting example, the The anchoring element (3) and the first connection means (4) according to the invention can take, among others, a trapezoidal, spherical, helical, cubic, rectangular or any other regular or irregular geometric shapes.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Manufacturing & Machinery (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20742259.3A EP3999321A1 (fr) | 2019-07-19 | 2020-07-20 | Dispositif de fixation pour un composant a une paroi d'un reservoir a carburant |
CN202080048333.5A CN114072306A (zh) | 2019-07-19 | 2020-07-20 | 用于固定到燃料储箱壁的用于部件的固定设备 |
US17/626,920 US20220258598A1 (en) | 2019-07-19 | 2020-07-20 | Device for fastening a component to a fuel tank |
KR1020227005109A KR20220035194A (ko) | 2019-07-19 | 2020-07-20 | 연료 탱크의 벽에 구성요소를 체결하기 위한 장치 |
JP2022503861A JP2022542850A (ja) | 2019-07-19 | 2020-07-20 | 燃料タンクの壁に対する構成部品の取着装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FRFR1908206 | 2019-07-19 | ||
FR1908206A FR3098764A1 (fr) | 2019-07-19 | 2019-07-19 | Dispositif de fixation pour un composant à un réservoir à carburant |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2021013787A1 true WO2021013787A1 (fr) | 2021-01-28 |
Family
ID=69468615
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2020/070434 WO2021013787A1 (fr) | 2019-07-19 | 2020-07-20 | Dispositif de fixation pour un composant a une paroi d'un reservoir a carburant |
Country Status (7)
Country | Link |
---|---|
US (1) | US20220258598A1 (fr) |
EP (1) | EP3999321A1 (fr) |
JP (1) | JP2022542850A (fr) |
KR (1) | KR20220035194A (fr) |
CN (1) | CN114072306A (fr) |
FR (1) | FR3098764A1 (fr) |
WO (1) | WO2021013787A1 (fr) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030173776A1 (en) * | 2002-03-15 | 2003-09-18 | Nissan Motor Co., Ltd. | Welded structure of fuel filling container and welded part, and welding method therefor |
US20120138210A1 (en) | 2010-12-03 | 2012-06-07 | Yachiyo Industry Co., Ltd. | Method of welding a component part to a plastic fuel tank |
EP3124305A1 (fr) * | 2015-07-31 | 2017-02-01 | Plastic Omnium Advanced Innovation and Research | Réservoir de liquide de véhicule comprenant un composant fixe |
EP3124308B1 (fr) | 2015-07-31 | 2018-01-31 | Plastic Omnium Advanced Innovation and Research | Réservoir de carburant comprenant un composant soudé |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2867255B1 (fr) * | 2004-03-04 | 2007-11-30 | Inergy Automotive Systems Res | Systeme de fixation de deux composants, procede de fixation au moyen de ce systeme de fixation et systeme a carburant |
-
2019
- 2019-07-19 FR FR1908206A patent/FR3098764A1/fr active Pending
-
2020
- 2020-07-20 WO PCT/EP2020/070434 patent/WO2021013787A1/fr unknown
- 2020-07-20 EP EP20742259.3A patent/EP3999321A1/fr active Pending
- 2020-07-20 JP JP2022503861A patent/JP2022542850A/ja active Pending
- 2020-07-20 CN CN202080048333.5A patent/CN114072306A/zh active Pending
- 2020-07-20 KR KR1020227005109A patent/KR20220035194A/ko unknown
- 2020-07-20 US US17/626,920 patent/US20220258598A1/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030173776A1 (en) * | 2002-03-15 | 2003-09-18 | Nissan Motor Co., Ltd. | Welded structure of fuel filling container and welded part, and welding method therefor |
US20120138210A1 (en) | 2010-12-03 | 2012-06-07 | Yachiyo Industry Co., Ltd. | Method of welding a component part to a plastic fuel tank |
EP3124305A1 (fr) * | 2015-07-31 | 2017-02-01 | Plastic Omnium Advanced Innovation and Research | Réservoir de liquide de véhicule comprenant un composant fixe |
EP3124308B1 (fr) | 2015-07-31 | 2018-01-31 | Plastic Omnium Advanced Innovation and Research | Réservoir de carburant comprenant un composant soudé |
Non-Patent Citations (1)
Title |
---|
"Plastics and Composites Welding Handbook", pages: 23 |
Also Published As
Publication number | Publication date |
---|---|
FR3098764A1 (fr) | 2021-01-22 |
EP3999321A1 (fr) | 2022-05-25 |
JP2022542850A (ja) | 2022-10-07 |
CN114072306A (zh) | 2022-02-18 |
US20220258598A1 (en) | 2022-08-18 |
KR20220035194A (ko) | 2022-03-21 |
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