Assembly for a fluid storage tank comprising a baffle and a fluid delivery line passing through the baffle

Abstract

The invention relates to an assembly (11) for a fluid tank (10), the assembly (11) comprising a baffle (13) and a fluid delivery line (14). The baffle (13) comprises a first deflection surface (16) intended to define a first portion (17) of the tank (10) and a second deflection surface (18) intended to define a second portion (19) of the tank. The fluid delivery line (14) is intended to extend from the first portion (17) to the second portion (19) and is coupled to the baffle (13) by a coupling device (15) supported by the assembly (11), wherein the extension of the fluid delivery line (14) in the first portion (17) defines the first portion of the fluid delivery line (14), and wherein the extension of the fluid delivery line (14) in the second portion (19) defines the second portion of the fluid delivery line (14). The coupling device (15) allows the first portion and the second portion of the fluid delivery line (14) to be rotated simultaneously towards a surface comprising one of the deflection surfaces (16, 18).

Description

Technical Field

[0001] The present invention relates to an assembly for a fluid storage tank, comprising a baffle and a fluid delivery line passing through the baffle. Background Art

[0002] In a fluid tank, especially a fuel tank or an ammonia tank, a baffle is used as a divider. In a vehicle, the baffle constrains the movement of the fluid in the tank and prevents it from sloshing. The tank may need to be tilted at an angle. Gravity then causes the fluid to move to one end of the tank, where it may be difficult to capture the fluid. A fluid delivery line is used that can reach the fluid at the end of the tank and draw the fluid. The fluid tank also contains internal vapor that must be transported between valves or other internal connection points. A vapor line can be used inside the fuel tank to transport the vapor.

[0003] The difficulty is to install the baffle plate and the fluid delivery line in the tank. Once the tank is molded, the baffle plate and the fluid delivery line must be inserted into the tank through a small opening.

[0004] A known solution for fitting a baffle through an opening is to use a baffle equipped with a spring that allows temporary compression of the baffle to facilitate its insertion into the tank through the small opening. Typically, the fluid delivery line is fixed to the baffle after the baffle has been inserted into the tank. However, since the baffle can only be accessed through the small opening, it is difficult to operate the fluid delivery line in the tank to connect it to the baffle. When the fluid delivery line is connected after the baffle has been installed in the tank, internal testing is required to ensure proper connection.

[0005] Another solution is to pre-install the fluid delivery line to the baffle using a rigid connection before the baffle is inserted into the tank. However, since the fluid delivery line and the baffle are rigidly connected, the fluid delivery line must be bent significantly to fit through the opening in the tank, which may cause damage. Summary of the invention

[0006] The present invention is directed to inserting a preassembled fluid delivery line and baffle into a tank through an opening without bending the fluid delivery line and without requiring internal testing.

[0007] The present invention therefore relates to an assembly for a fluid tank, comprising:

[0008] - a baffle comprising a first deflection surface intended to define a first portion of said tank and a second deflection surface intended to define a second portion of said tank;

[0009] - a fluid transfer line, intended to extend from the first portion to the second portion and to be coupled to the baffle by means of coupling means supported by the assembly, wherein the extension of the fluid transfer line in the first portion defines a first portion of the fluid transfer line, and wherein the extension of the fluid transfer line in the second portion defines a second portion of the fluid transfer line. The assembly is characterized in that the coupling means allow simultaneous rotation of the first portion and the second portion of the fluid transfer line towards a surface comprising one of the change-of-direction surfaces.

[0010] This allows the fluid delivery line to be connected to the baffle before being inserted into the tank. Therefore, it is easy to correctly connect the fluid delivery line to the baffle. Moreover, the fluid delivery line does not need to be bent to limit the footprint of the assembly, but can be easily rotated simultaneously to the surface of one of the redirecting surfaces of the baffle to limit the footprint of the assembly. This also prevents damage to the assembly components, such as kinking or tearing the fluid delivery line. The term "fluid" is intended to refer to a liquid, a gas or a mixture thereof. When it is introduced into the tank, the fluid delivery line can therefore be rotated on both sides of the baffle at the same time and folded against the baffle. The rotation is operated around an axis corresponding to the coupling device and substantially perpendicular to the axis of the fluid delivery line, so that the fluid delivery line rotates in a plane substantially perpendicular to the plane of the baffle. The rotation angle is greater than 10°, preferably between 10 and 60°, more preferably between 15 and 60°, and most preferably between 30 and 60°. This last angular range allows a significant reduction in drag and allows easy insertion of the pre-assembly (baffle and fluid delivery line) into the tank.

[0011] The assembly for a tank according to the invention may also include the following optional features:

[0012] The fluid delivery line is coupled to an inner periphery of the baffle, the inner periphery defining a through hole extending between the two direction-changing surfaces of the baffle, the fluid delivery line passing through the through hole in the baffle.

[0013] Thus, the fluid delivery line may be easily rotated toward a surface comprising one of the redirecting surfaces of the baffle to limit the footprint of the assembly.

[0014] - The fluid delivery line is coupled to an outer periphery of the baffle, the outer periphery defining, for example, a notch on an edge of the baffle.

[0015] Thus, alternatively, the fluid delivery line may be easily rotated toward a surface that includes one of the redirecting surfaces of the baffle to limit the footprint of the assembly.

[0016] - The coupling means are selected from a pivot coupling and a sliding pivot coupling.

[0017] Either of these couplings allows rotation of the fluid delivery line. The coupling also limits the freedom of the fluid delivery line to facilitate use of the assembly during manufacture of the vehicle tank. This ensures that the fluid delivery line moves only as desired and does not have any other movement that might interfere with its function of drawing fluid from the tank or transporting vapor between connection points of the internal components.

[0018] - the coupling device comprises a rod supported by the baffle and a bearing connected to the fluid conveying line, the rod being configured to receive the bearing.

[0019] Thus, the rod provides a location for the bearing to rotate around. The bearing connected to the fluid delivery line allows the fluid delivery line to rotate around the rod.

[0020] - the fluid transport line comprises an upstream pipe section, a downstream pipe section and a hollow cylindrical element connecting the upstream pipe section to the downstream pipe section, the bearing being connected to the fluid transport line via the hollow cylindrical element, the hollow cylindrical element allowing a fluid to flow through the coupling device.

[0021] The hollow cylindrical element allows the bearing to be connected to both the upstream and downstream pipe sections so that both can rotate about the rod.The hollow cylindrical element does not inhibit the flow of fluid through the fluid transfer line.

[0022] - the coupling device comprises a rod supported by the fluid conveying line and a bearing connected to the baffle, the rod being configured to receive the bearing.

[0023] Thus, the rod provides a location for the bearing to rotate around. The bearing connected to the baffle allows the fluid delivery line to rotate around the rod.

[0024] - the fluid transport line comprises an upstream pipe section, a downstream pipe section and a hollow cylindrical element connecting the upstream pipe section to the downstream pipe section, the rod being connected to the fluid transport line via the hollow cylindrical element, the hollow cylindrical element allowing the fluid to flow through the coupling device.

[0025] The hollow cylindrical element allows the rod to be connected to both the upstream and downstream pipe sections; the baffle can thus be rotated about the fluid transport line. The hollow cylindrical element does not inhibit fluid flow through the fluid transport line.

[0026] - the hollow cylindrical element comprises an upstream end and a downstream end, both having an outer surface, the upstream end and the downstream end being connected to the upstream pipe section and the downstream pipe section, respectively, by means of barbs arranged on the outer surface.

[0027] The barbs allow both the upstream and downstream pipe sections to be easily and securely connected to the hollow cylindrical element. The barbs also prevent the upstream and downstream pipe sections from detaching from the hollow cylindrical element. Moreover, the barbs ensure a watertight connection between the upstream pipe section and the upstream end and between the downstream pipe section and the downstream end.

[0028] - The upstream pipe section and the downstream pipe section are made of a material selected from a flexible material, a semi-rigid material or a rigid material. An example of a suitable flexible material is nylon (single or multi-layer) which has been designed to have a high degree of flexibility (i.e. provided with corrugated segments). Semi-rigid materials can be obtained from the same materials but without the high flexibility feature. An example of a rigid material can be metal.

[0029] Thus, both the upstream and downstream pipe sections may be rigid enough to ensure they are in place within the tank and / or flexible enough to be easily maneuverable.

[0030] - The upstream pipe portion and the downstream pipe portion comprise corrugated segments.

[0031] The corrugated segments provide more flexibility to the upstream and downstream pipe sections.

[0032] - The rod projects in a direction orthogonal to the flow of the fluid intended to flow through the hollow cylindrical element of the coupling device.

[0033] This orientation of the rod ensures that the fluid delivery line can rotate toward a surface comprising one of the redirecting surfaces of the baffle. Moreover, this orientation allows the fluid delivery line to pass through a through hole in the baffle or through a notch, for example, located on the edge of the baffle.

[0034] - The coupling means comprise locking means to constrain the bearing around the rod.

[0035] Thereby, the locking device ensures that the bearing is securely connected to the rod and cannot slip out.

[0036] - said locking means are located on said rod, said rod comprising at least one snap-on tongue configured to cooperate with said bearing.

[0037] Thereby, alternatively, the snap tab ensures that the bearing is securely connected to the rod and cannot slip off.

[0038] The rod comprises a tip which is split into at least two parts so that it is radially deformable, each part of the rod forming a snap-on tab.

[0039] The radially deformable end of the rod allows easy insertion of the bearing on the rod. The snap-on tab ensures that the bearing is securely connected to the rod and cannot slip off.

[0040] The invention also relates to a tank for a vehicle comprising an assembly according to the invention.

[0041] The invention also relates to a method for manufacturing a vehicle tank, comprising the following steps:

[0042] - manufacturing a plastic vehicle tank, said tank comprising a wall having an opening for access to the interior of the tank;

[0043] - manufacturing the assembly according to the invention;

[0044] - rotating the tube of the fluid conveying line towards a surface comprising one of the redirecting surfaces of the baffle, so as to facilitate the insertion of the assembly through the opening in the tank wall;

[0045] - inserting the assembly into the tank through the opening;

[0046] - Installing said assembly in said tank.

[0047] Thus, using this manufacturing method, there is no need to significantly bend the connection between the baffle and the fluid delivery line. This manufacturing method is more ergonomic because the fluid delivery line can be connected to the baffle outside the tank and easily inserted into the tank through the opening.

[0048] The term "plastic" is understood to mean any material comprising at least one synthetic polymer resin.

[0049] The term "thermoplastic material" is understood to mean any thermoplastic polymer, including thermoplastic elastomers and mixtures thereof.

[0050] The term "polymer" is understood to mean homopolymers and copolymers (especially binary or ternary copolymers). Examples of such copolymers are, without limitation, random copolymers, linear block copolymers, other block copolymers and graft copolymers. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] In order to more fully understand the present invention, the following description is based on the accompanying drawings, in which:

[0052] Figure 1 is a cross-sectional view of a portion of a tank according to the invention, comprising an assembly according to the invention.

[0053] Figure 2 is a top view of a fluid conveying line including an upstream pipe section, a downstream pipe section and a bearing of a coupling device.

[0054] Figure 3 is a detailed view of an assembly according to the present invention showing the coupling arrangement prior to coupling of the fluid delivery line to the baffle, wherein the fluid delivery line is coupled to the inner periphery of the baffle.

[0055] Figure 4 is similar to Figure 3 A view of a fluid delivery line coupled to a baffle.

[0056] Figure 5 is similar to Figure 4 , which shows a variation of the invention in which the fluid delivery line is coupled to the outer periphery of the baffle.

[0057] Figure 6 is a detail view of an assembly according to the invention showing a variant of the invention before the fluid delivery line is coupled to the baffle, wherein the stem comprises two snap tabs.

[0058] Figure 7 is a detail view of an assembly according to the invention showing a variant of the invention before the fluid delivery line is coupled to the baffle, wherein the stem comprises two snap-on tabs and is formed as a spherical joint. DETAILED DESCRIPTION

[0059] Figure 1 A vehicle fluid tank 10 according to the invention is shown. The vehicle fluid tank 10 comprises an assembly 11 .

[0060] The tank 10 is defined by a wall 12 that embodies a sealed housing intended to contain, for example, fuel, a fuel additive, an exhaust gas treatment additive or any other fluid contained in a vehicle. The fuel additive may, for example, be selected from those required to reduce the combustion temperature of particles retained on a particle filter of a diesel engine. The exhaust gas treatment additive may, for example, be urea or any other ammonia precursor conventionally used in SCR (Selective Catalytic Reduction) devices.

[0061] Advantageously, the tank wall 12 is produced from plastic in a manner known per se.

[0062] Any type of plastic may be suitable. Particularly suitable plastics belong to the group of thermoplastic materials.

[0063] Any type of thermoplastic polymer or copolymer having a melting point below the decomposition temperature is suitable. Synthetic thermoplastic materials having a melting range spanning at least 10 degrees Celsius are particularly suitable. Examples of such materials include those that exhibit polydispersity in molecular weight.

[0064] In particular, polyolefins, thermoplastic polyesters, polyketones, polyamides and copolymers thereof may be used. Mixtures of polymers or copolymers may also be used. Similarly, mixtures of polymer materials with inorganic, organic and / or natural fillers such as, by way of example and not limitation, carbon, salts and other inorganic derivatives, natural or polymeric fibers may also be used. Multilayer structures consisting of stacked and joined layers comprising at least one of the above polymers or copolymers may also be used. One polymer that is often used is polyethylene. Excellent results have been obtained with high density polyethylene (HDPE).

[0065] The tank 10 comprises an opening (not shown) for accessing the interior of the tank, in order to insert accessories into the tank 10, in particular an assembly 11 according to the invention, into the tank 10. The assembly 11 is fastened in the tank 10 in a known manner.

[0066] The assembly 11 comprises a baffle 13 and a fluid delivery line 14. The baffle 13 is coupled to the fluid delivery line 14 by a coupling 15 supported by the assembly 11. In the embodiment shown, the coupling 15 is a pivot coupling. The coupling 15 limits the degree of freedom of the fluid delivery line 14 to one.

[0067] In the embodiment shown, the baffle 13 comprises a lower bearing portion L and an upper sliding portion U which can slide relative to the bearing portion thanks to a compression device S (e.g. a spring). Thus, the upper portion U can slide towards the lower bearing portion L by compression of the spring S, so as to reduce the space occupied by the baffle 13 and facilitate the insertion of the assembly 11 into the tank 10 through the opening for accessing the interior of the tank. Moreover, once the assembly 11 is in the tank 10, the spring S is released and can allow the lower bearing portion L and the upper sliding portion U to remain in place against the tank wall 12.

[0068] In a variant (not shown), the coupling device 15 is a sliding pivot coupling. In this variant, the coupling device 15 limits the degree of freedom of the fluid conveying line to two.

[0069] The baffle 13 comprises a first turning surface 16 intended to define a first portion 17 of the tank 10 and a second turning surface 18 intended to define a second portion 19 of the tank 10 .

[0070] Both redirecting surfaces 16 and 18 are intended to cooperate with the fluid contained in tank 10 so as to limit sloshing noises, and both include at least one hole 20 allowing the passage of the fluid.

[0071] The fluid delivery line 14 extends from a first portion 17 to a second portion 19 of the tank 10 .

[0072] The fluid delivery line 14 is coupled to the inner periphery 21 of the baffle 13 . In one variation, the fluid delivery line 14 may be coupled proximate to the inner periphery 21 of the baffle 13 .

[0073] The inner periphery 21 of the baffle 13 defines a through hole 22 extending between the first and second changing surfaces 16, 18 of the baffle 13. The fluid delivery line 14 passes through the through hole 22 in the baffle 13, whereby the fluid delivery line 14 passes through the baffle 13.

[0074] The coupling device 15 allows the fluid delivery line 14 to rotate toward a surface including one of the change-of-direction surfaces 16 and 18 .

[0075] Figure 2 A fluid transfer line 14 is shown. The fluid transfer line 14 comprises an upstream pipe section 23 and a downstream pipe section 24 connected by a hollow cylindrical element 25.

[0076] The upstream and downstream pipe portions 23, 24 are made of a semi-rigid material and advantageously include corrugated sections to provide more flexibility to the upstream and downstream pipe portions 23, 24. The upstream and downstream pipe portions 23, 24 may also be made of a flexible or rigid material.

[0077] The end of the upstream pipe portion 23 is intended to come into contact with the fluid in the tank 10 , whereas the end of the downstream pipe portion 24 is intended to be coupled to a device such as a fuel pump.

[0078] Also, a bearing 26 is molded to the hollow cylindrical member 25 .

[0079] Figure 3 A coupling device 15 comprising a bearing 26 , a rod 27 and a hollow cylindrical element 25 is shown. Figure 3 The coupling device 15 is shown before the rod 27 receives the bearing 26 .

[0080] The rod 27 is supported by the baffle 13. The hollow cylindrical element 25 is molded with the bearing portion 26, thereby connecting the bearing 26 to the fluid conveying line 14. The hollow cylindrical element 25 allows the fluid intended to flow into the upstream portion 23 and the downstream portion 24 to flow through the coupling device 15.

[0081] The hollow cylindrical element 25 comprises an upstream end 28 and a downstream end 29. Both ends 28 and 29 have an outer surface comprising a barb 30. The upstream end 28 of the hollow cylindrical element 25 is connected to the upstream pipe section 23. The downstream end 29 of the hollow cylindrical element 25 is connected to the downstream pipe section 24. Thanks to the barb 30, it is easy to firmly connect the upstream pipe section 23 and the downstream pipe section 24 to the hollow cylindrical element. Thus, the barb 30 prevents the upstream pipe section 23 and the downstream pipe section 24 from detaching from the hollow cylindrical element 25. Moreover, the barb 30 ensures a watertight connection between the upstream pipe section 23 and the upstream end 28 of the hollow cylindrical element 25 and between the downstream pipe section 24 and the downstream end 29 of the hollow cylindrical element 25.

[0082] The rod 27 projects in a direction orthogonal to the flow of the fluid intended to flow through the hollow cylindrical element 25 of the coupling device 15 .

[0083] The rod 27 comprises locking means 31 which allow the bearing 26 to be securely connected to the rod 27 and prevent the bearing 26 from slipping out.

[0084] The locking device 31 is located on the rod 27, which includes at least one snap-on tab 32 configured to cooperate with the bearing 26. Figure 3 and Figure 4 As can be seen in FIG. 2 , the rod 27 comprises a tip which is split into two parts. Therefore, the tip can be deformed radially, and each part of the rod 27 forms a snap tab 32.

[0085] Figure 4 The fluid delivery line 14 is shown coupled to the inner periphery 21 of the baffle 13. The bearing 26 is constrained around the rod 27 thanks to the snap tabs 32.

[0086] The inner periphery 21 of the baffle 13 defines a through hole 22. The fluid delivery line 14 passes through the through hole 22 in the baffle 13. The rod 27 provides a location for the bearing 26 to rotate around. Therefore, the bearing 26 connected to the baffle 13 allows the fluid delivery line 14 to rotate around the rod 27, and the fluid delivery line 14 can easily rotate toward a surface including one of the change-of-direction surfaces 16 and 18 of the baffle 13. When the fluid delivery line 14 rotates toward a surface including one of the change-of-direction surfaces 16 and 18, the occupied space of the assembly 11 is limited.

[0087] Figure 5 A variation is shown in which the fluid delivery line 14 is coupled to the outer periphery 33 of the baffle 13. In this variation, the outer periphery 33 defines a notch 34 located on the edge 35 of the baffle 13. Thus, the fluid delivery line 14 is easily rotated toward a surface including one of the redirecting surfaces 16 and 18, thereby limiting the footprint of the assembly 11.

[0088] Figure 6 Another variant is shown, in which the rod 27 is hollow and comprises a locking device 31. The locking device 31 comprises two snap tabs 32 opposite each other configured to cooperate with the bearing 26. Thereby, the bearing 26 is firmly connected to the rod 27 and cannot slip off. Moreover, the bearing 26 is constrained around the rod 27.

[0089] Figure 7A preferred embodiment of the invention is shown, in which the bearing 26 and the rod 27 are arranged as a spherical joint to allow smooth movement in all directions. The rod 27 is provided with a central slot 36 and is configured to cooperate with the bearing 26. The slot will allow the insertion of the bearing 26, which will then remain locked on the rod 27. The advantage of this embodiment is that the conveyor line can be turned very efficiently against the baffle 13; this is particularly useful in the case of complex geometric shapes of the tank opening. According to another preferred embodiment not depicted in the drawings, the rod 27 is solid (without slots), while the bearing periphery is provided with slots to allow the insertion of the bearing 26, which will then remain locked on the rod 27.

[0090] A method of manufacturing a vehicle tank comprising an assembly 11 according to the invention will now be described.

[0091] Firstly, a plastic vehicle tank 10 is manufactured. The wall 12 of the plastic tank 10 comprises an opening for accessing the interior of the tank.

[0092] Next, the assembly 11 according to the invention is manufactured before being inserted into the tank 10, that is, the baffle 13 is coupled to the fluid delivery line 14 by connecting the rod 27 to the bearing 26. Thus, it is easy to correctly connect the fluid delivery line 14 to the baffle 13.

[0093] Then, the upstream pipe section 23 and the downstream pipe section 24 of the fluid conveying line 14 are rotated toward a surface comprising one of the direction-changing surfaces 16 and 18 of the baffle 13. Thus, the footprint of the assembly 11 is limited.

[0094] The next step is to insert the assembly 11 through the opening into the tank 10. The limited footprint of the assembly 11 facilitates its insertion through the opening in the tank wall 12 and prevents damage to the assembly 11, such as kinking or tearing the fluid delivery line 14. Advantageously, the spring S is compressed toward the lower load-bearing portion L of the baffle 13 to reduce the footprint of the baffle 13 and further facilitate insertion of the assembly 11 into the tank 10 through the opening that provides access to the tank interior.

[0095] Finally, the assembly 11 is installed in the tank 10, that is, for example, the baffle 13 is suspended in the tank 10 and the end of the downstream pipe section 24 is connected to a device such as a fuel pump. In the case of a vapor line, the internal line can be connected to an internal active or passive component, such as a vent valve, a liquid vapor separator or a vent.

[0096] The above detailed description and examples are intended to be non-exhaustive descriptions of some but not necessarily all examples or embodiments of the present invention, and should not be construed to limit the scope of the present invention in any way.

[0097] Indeed, the invention is described with respect to specific embodiments and variations and with reference to certain figures. However, the invention is not limited thereto but only by the claims. The drawings described are only schematic and non-limiting. In the drawings, the dimensions of some of the elements may not be drawn to scale but may be exaggerated for illustrative purposes. The dimensions and relative dimensions shown in the drawings do not represent the actual dimensions of the invention.

Claims

1. An assembly (11) for a fluid storage tank (10), the assembly (11) comprising: - a baffle (13) comprising a first deflection surface (16) intended to define a first portion (17) of the tank (10) and a second deflection surface (18) intended to define a second portion (19) of the tank (10); a fluid conveying line (14) intended to extend from the first portion (17) to the second portion (19) and to be coupled to the baffle (13) by coupling means (15) supported by the assembly (11), wherein the extension of the fluid conveying line (14) in the first portion (17) defines a first portion of the fluid conveying line (14), and wherein the extension of the fluid conveying line (14) in the second portion (19) defines a second portion of the fluid conveying line (14), The assembly is characterized in that the coupling device (15) allows the first and second portions of the fluid delivery line (14) to be rotated simultaneously toward a surface including one of the change-of-direction surfaces (16, 18), Wherein, the rotation angle of the simultaneous rotation is between 30° and 60°.

2. The assembly (11) according to claim 1, wherein: The fluid delivery line (14) is coupled to an inner periphery (21) of the baffle (13), the inner periphery defining a through hole (22) extending between two redirecting surfaces (16, 18) of the baffle (13), the fluid delivery line (14) passing through the through hole (22) in the baffle (13).

3. The assembly (11) according to claim 1, wherein: The fluid delivery line (14) is coupled to an outer periphery (33) of the baffle (13), the outer periphery defining a notch (34) located on an edge (35) of the baffle (13).

4. The assembly (11) according to claim 1, wherein: The coupling means (15) is selected from a pivot coupling and a sliding pivot coupling.

5. The assembly (11) according to claim 4, wherein: The coupling device (15) comprises a rod (27) supported by the baffle (13) and a bearing (26) connected to the fluid delivery line (14), the rod (27) being configured to receive the bearing (26).

6. The assembly (11) according to claim 5, wherein: The fluid transport line (14) comprises an upstream pipe section (23), a downstream pipe section (24) and a hollow cylindrical element (25) connecting the upstream pipe section (23) to the downstream pipe section (24), the bearing (26) being connected to the fluid transport line (14) via the hollow cylindrical element (25), the hollow cylindrical element (25) allowing fluid to flow through the coupling device (15).

7. The assembly (11) according to claim 4, wherein: The coupling device (15) comprises a rod (27) supported by the fluid delivery line (14) and a bearing (26) connected to the baffle (13), the rod (27) being configured to receive the bearing (26).

8. The assembly (11) according to claim 7, wherein The fluid transport line (14) comprises an upstream pipe section (23), a downstream pipe section (24) and a hollow cylindrical element (25) connecting the upstream pipe section (23) to the downstream pipe section (24), the rod (27) being connected to the fluid transport line (14) via the hollow cylindrical element (25), the hollow cylindrical element (25) allowing the fluid to flow through the coupling device (15).

9. Assembly (11) according to claim 6 or 8, wherein: The hollow cylindrical element (25) comprises an upstream end (28) and a downstream end (29), both having an outer surface, the upstream end (28) and the downstream end (29) being connected to the upstream pipe section (23) and the downstream pipe section (24), respectively, by means of barbs (30) arranged on the outer surface.

10. Assembly (11) according to claim 6 or 8, wherein The upstream pipe section (23) and the downstream pipe section (24) are made of a material selected from a flexible material, a semi-rigid material or a rigid material.

11. The assembly (11) according to claim 10, wherein: The upstream pipe portion (23) and the downstream pipe portion (24) comprise corrugated segments.

12. The assembly (11) according to claim 5, wherein The rod (27) projects in a direction orthogonal to the flow of the fluid intended to flow through the hollow cylindrical element (25) of the coupling device (15).

13. The assembly (11) according to claim 5, wherein: The coupling device (15) comprises locking means (31) to constrain the bearing (26) around the rod (27).

14. The assembly (11) according to claim 13, wherein The locking device (31) is located on the rod (27), and the rod (27) includes at least one snap-on tongue (32) configured to cooperate with the bearing (26).

15. Assembly (11) according to claim 14, wherein The rod (27) comprises a tip which is split into at least two parts so that the tip is radially deformable, each part of the rod (27) forming a snap-on tab (32).

16. A tank (10) for a vehicle, characterized in that The tank (10) comprises an assembly (11) according to any one of claims 1 to 15.

17. A method for manufacturing a vehicle tank (10), characterized in that: The method comprises the following steps: - manufacturing a plastic vehicle tank (10) comprising a wall (12) having an opening for access to the interior of the tank; - manufacturing an assembly (11) as claimed in any one of claims 1 to 15; - rotating the fluid delivery line (14) towards a surface comprising one of the redirecting surfaces (16, 18) of the baffle (13) to facilitate insertion of the assembly (11) through the opening in the wall (12); - inserting the assembly (11) into the tank (10) through the opening; - Installing said assembly (11) in said tank (10).

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