Device for automobile fuel tank

Abstract

An apparatus (1) for a plastic gasoline tank (5) for an automobile, the apparatus comprising a frame (10), internal reinforcement elements (11, 13) of a gasoline system, and a movable support means (12) for the component (11), the movable support means (12) being fixed to the frame (10) and movable relative to the frame (10) between an initial configuration in which the internal reinforcement elements (11, 13) are positioned at a first distance d1 from the frame (10) and a final configuration in which the internal reinforcement elements (11, 13) are positioned at a second distance d2 from the frame (10), the first distance d1 being smaller than the second distance d2, the frame (10) comprising means (16) for stopping the movement of the movable support means (12) when the movable support means (12) is in the final configuration.

Description

[Technical Field]

[0001] The present invention relates to the technical field of an arrangement for a plastic fuel tank for a motor vehicle, and to a plastic tank for a motor vehicle containing such an arrangement. More particularly, the present invention relates to an arrangement for a plastic fuel tank for a motor vehicle, comprising a frame, a component, and at least one movable support means for the component. Throughout this specification, the term "fuel" refers to "gasoline", i.e., mostly C7H 16 is understood to mean a fuel conforming to standard EN 228, consisting of a mixture of light hydrocarbons of

[0002] The present invention also relates to a method for manufacturing a plastic fuel tank for an automobile. [Background technology]

[0003] Conventionally, plastic fuel tanks for automobiles are obtained by extrusion blow molding a parison. The extruded parison has a substantially cylindrical shape, and most of the internal components of the fuel tank's fuel system are inserted into the parison during extrusion blow molding. As disclosed in Patent Document 1, internal components with complex arrangements are usually inserted using an apparatus including a frame that contains these components.

[0004] However, this limits the size of the device, including the frame, that can be inserted into the cylindrical parison. In fact, since the cylindrical parison to be extruded has a predetermined overall diameter, the device that can be inserted into the cylindrical parison must fit within a circle with a diameter smaller than the inner diameter of the cylindrical parison. After blow molding, the internal cavity of the resulting tank will have dimensions that exceed the inner diameter of the cylindrical parison, but this limits the placement of the inserted components. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] International Publication No. 2022 / 073964 Brochure [Patent Document 2] European Patent No. 2 865 553 [Patent Document 3] European Patent No. 3 878 676 Summary of the Invention [Problem to be solved by the invention]

[0006] The present invention aims, inter alia, to overcome these disadvantages of the prior art.

[0007] To this end, the present invention aims to provide an apparatus for a plastic fuel tank for an automobile, including a frame containing at least one component of a fuel system, which frame can be easily inserted into a cylindrical parison during manufacture of the plastic fuel tank.

[0008] The present invention, in at least one of its embodiments, also aims to provide a plastic fuel tank for an automobile.

[0009] Another object of at least one embodiment of the present invention is to provide a method for manufacturing a plastic fuel tank for an automobile. [Means for solving the problem]

[0010] According to one specific embodiment, the present invention relates to an apparatus for a plastic fuel tank for an automobile.

[0011] According to the present invention, such an apparatus comprises at least one frame, a fuel system component, and at least one movable support means for the fuel system component, said movable support means for the fuel system component being fixed to the frame and movable relative to the frame between an initial configuration in which the fuel system component is located at a first distance d1 from the frame and a final configuration in which the fuel system component is located at a second distance d2 from the frame, the first distance d1 being smaller than the second distance d2, and the frame comprising means for stopping movement of the movable support means for the fuel system component when the movable support means for the fuel system component is in the final configuration.

[0012] According to the present invention, the fuel system component is an internal reinforcement element and the fuel is gasoline.

[0013] The basic principle of the invention is based on the presence, on the one hand, of movable support means fixed to a frame, which are movable relative to the frame between an initial configuration in which the fuel system component it supports is located at a first distance d1 from the frame and a final configuration in which the fuel system component is located at a second distance d2 from the frame, the first distance d1 being smaller than the second distance d2, and, on the other hand, of means on the frame for stopping the movement of the movable support means for the fuel system component when the movable support means for the fuel system component is in its final configuration.

[0014] The present invention is based on a completely novel and inventive approach to an apparatus including a frame, a fuel system component, and at least one movable support means for the fuel system component, the movable support means for the component being movable relative to the frame between an initial configuration in which the fuel system component is positioned at a first distance d1 from the frame and a final configuration in which the fuel system component is positioned at a second distance d2 from the frame, the first distance d1 being smaller than the second distance d2, and the movable support means for the fuel system component having a means for stopping the frame from moving when the movable support means for the fuel system component is in the final configuration. Such an apparatus facilitates insertion into a cylindrical parison and increases the production rate of the tank by avoiding contact between the frame containing the internal components of the fuel tank and the cylindrical parison. Furthermore, such an apparatus allows the fuel system components to be positioned within the fuel tank in a way that is optimal for their intended function, such as positioning an internal reinforcing element in a location subject to the greatest stress or positioning a ventilation system valve in a location that minimizes loss of effective capacity.

[0015] As a result, such an arrangement reduces the number of processing steps on the fuel tank after extrusion blow molding, such as fastening fuel system components at locations that are significantly offset from the frame, thereby reducing the number and size of openings required in the tank wall to perform such processing, and therefore reducing hydrocarbon emissions from said openings.

[0016] The phrase "an initial configuration in which the fuel system components are positioned a first distance d1 from the frame, and a final configuration in which the fuel system components are positioned a second distance d2 from the frame, the first distance d1 being less than the second distance d2" means that in the initial configuration, the frame and components occupy a first circumferential volume V1, and in the final configuration, the frame and components occupy a second circumferential volume V2, the second circumferential volume being greater than the first circumferential volume V1. Distance d1 is included in volume V1, and distance d2 is included in volume V2. In each configuration, the circumferential volume is defined by each circumferential point of the frame and components, i.e., each point of the frame and components that is farthest in a given direction from the geometric center (C) of the device. In the above definition of circumferential volume, if the shape of the device makes it difficult for a person skilled in the art to define the "geometric center" of the device, especially if there is no center of symmetry or no part similar to a center of symmetry of the device as a whole, the geometric center can be defined in the following manner. Consider a central longitudinal plane (X;Y) of the device (i.e., a longitudinal plane that divides the entire device into two parts of approximately equal volume), and consider the center of the largest segment (S) of the device in this central longitudinal plane as the geometric center (C). If a person skilled in the art still has difficulty defining the geometric center of the device using this method, the center of gravity of the device is considered to be the geometric center. Distances d1 and d2 are the shortest distances between the main part of the frame and the perimeter points of the components on the transverse plane (Y;Z) of the device.

[0017] The initial configuration is understood to be the insertion configuration into the tank, and the final configuration is understood to be the operating configuration. It is also understood that in the initial configuration, the device has a size in the longitudinal plane (X:Y) of the device that fits within a circle perpendicular to the vertical axis (Z) of the tank and the axis of the parison, and with a diameter less than the inner diameter of the cylindrical parison. In the final configuration, the device has a size in the same longitudinal plane (X:Y) of the device that allows it to be placed within the internal cavity of the tank.

[0018] The expression "component of the fuel system" means a component selected from among a ventilation line, a fuel line, a pump, a level sensor, a pressure sensor, a temperature sensor, a quality sensor, a deflector, an internal stiffening element, or a valve such as a flap valve, a roll-over valve (ROV) type valve or a full tank limiting vent valve (FLVV) type valve.

[0019] In the sense of the present invention, "internal" means elements located within the internal volume of the tank that are adapted to come into contact with the gasoline contained within the tank.

[0020] The internal reinforcing elements are intended to increase the tank's resistance to the mechanical stresses to which it will be subjected during its service life.

[0021] Preferably, distance d1 and distance d2 are measured along a longitudinal plane (X:Y) perpendicular to a vertical axis (Z) of the device which coincides with the vertical axis of the interior cavity of the fuel tank when the device is housed in the fuel tank.

[0022] According to one preferred embodiment, the device for a plastic fuel tank for a motor vehicle according to the invention has a movable support means for the components of the fuel system that moves translationally and / or rotationally relative to the frame, the combination of translational and rotational mobility relative to the frame being described, for example, by a movement similar to that of a pantograph or the like.

[0023] Thus, the movable support means for the fuel system components, which move translationally and / or rotationally relative to the frame, allows for greater freedom in arranging the fuel system components within the tank and also makes it easier to take into account the complexity of the fuel tank shape.

[0024] According to one preferred embodiment of the preceding embodiment, the device for a plastic fuel tank for a motor vehicle according to the invention is such that the movable support means for the components of the fuel system move in a rotational manner relative to the frame.

[0025] Thus, with the movable support means for the fuel system components moving rotationally relative to the frame, the use of mechanically or electrically operated devices can be avoided and gravity can be used to move the movable support means.

[0026] According to another object of the invention, the device for a plastic fuel tank for a motor vehicle according to the invention is characterized in that the components of the fuel system are selected from among an internal reinforcing element, a valve and a sensor.

[0027] Thus, the selection of fuel system components among the internal reinforcing element, valve, and sensor allows the internal reinforcing element to be positioned where it is most stressed, the valve (preferably a ventilation system valve) to be positioned to reduce losses in effective capacity, and the sensor to perform measurements at the desired location. The internal reinforcing element has a cylindrical shape, preferably a cylindrical or diabolo shape, as described, for example, in U.S. Patent No. 5,629,997. The cylinders can be straight or curved, as described, for example, in U.S. Patent No. 5,629,997. The reinforcing element can also include multiple cylinders, some of which are connected by connecting means, for example, in the form of connecting rods. The internal reinforcing element can also be in the form of a retaining means, including a wall with a central cutout, some of which include reinforcing ribs. The walls of the retaining means can be flat or curved. The element may also be in the form of a structure including a central section having an arc-shaped cross section, defining a major axis of the reinforcing element, and having a first area, the major axis passing through the center of rotation of the arc section perpendicular to the arc section, the central section preferably including a rib network extending radially relative to the major axis, referred to as a radial rib network, and two axial end portions located on either side of the central section along the major axis, each axial end portion having a curved, oval end surface encompassed by the cross section of the central section and preferably having a second area smaller than the first area. In the case of a cylindrical or diabolo-shaped internal reinforcing element, the element preferably comprises a central portion based on a material selected from polyoxymethylene (POM), polyphthalamide (PPA), polyketone (PK), polyamide (PA), and metal, the two end portions of the central portion being overmolded with high-density polyethylene (HDPE). The sensor may be a liquid level, temperature, pressure, or moisture sensor.

[0028] According to one preferred embodiment, the device for a plastic fuel tank for a motor vehicle according to the invention is such that the frame comprises blocking means for the movable support means for the components of the fuel system, and in the initial configuration the movable support means for the components of the fuel system are blocked.

[0029] The blocking means of the movable support means of the fuel system component thus facilitates handling of the device during insertion into the tubular parison when the movable support means of the fuel system component is in its initial configuration.

[0030] In one embodiment, the blocking means of the movable support means included in the frame in the initial configuration has the form of a first rib present on the frame. This first rib can abut against a second rib present on the movable support means. Thus, in this embodiment, the device is blocked in the initial configuration by direct interaction between the blocking means of the frame and the blocking means of the movable support means. This is a simple way to block a component in the initial configuration.

[0031] According to one preferred embodiment, the device for a plastic fuel tank for a motor vehicle according to the invention comprises a movable support means for a component of the fuel system, preferably comprising a rod-shaped central part, a first end adapted to interact with an insertion means, for example an insertion rod, and a second end provided with attachment means for the component of the fuel system.

[0032] According to one preferred embodiment, the device for a plastic fuel tank for a motor vehicle according to the invention comprises a frame comprising a receiving member configured to receive an insertion means, such as an insertion rod.

[0033] In one embodiment, the first end of the movable support means interacts with the insertion means such that removal of the insertion means moves the movable support means to the final configuration, such that removal of the insertion means automatically brings the movable support means to the final configuration.

[0034] Optionally, the movable support means is configured such that when the insertion means is removed, the movable support means rotates under gravity so that the first end abuts a portion of the insertion means.

[0035] Optionally, the movable support means is configured such that a first end thereof is hooked to a portion of the insertion means, such that the force of the removal movement of the insertion means causes the movable support means to move, for example by rotating about a hinge-type mechanism.

[0036] Optionally, the first end of the movable support means is configured to be fixed on an actuator present on a portion of the insertion means, such that the movable support means is moved by the power of the actuator during removal of the insertion means.

[0037] In one embodiment, the stop means has the form of a third rib present on the frame, and a fourth rib present on the mobile support means is configured to abut against the third rib. The stop is achieved by deformation of the fourth rib, such as a clip. Movement of the mobile support means relative to the frame can be achieved by rotation about a hinge-type mechanism.

[0038] Preferably, the frame is based on a material selected from the group of materials consisting of polyethylene (PE), preferably high density polyethylene (HDPE), polyoxymethylene (POM), polyamide (PA), polyphthalamide (PPA) and polyketone (PK). The frame can also serve as a support for components of the fuel system, such as ventilation and fuel lines, pumps, level sensors, pressure sensors, temperature sensors, deflectors, internal stiffening elements or valves, such as flap valves, roll-over valve (ROV) type valves or full limit vent valve (FLVV) type valves. Preferably, the frame has the shape of a frame, preferably a monoblock frame. Preferably, the frame has the shape of a structure with at least four sides that determine the perimeter of the frame.

[0039] One object of the present invention is to provide a method for manufacturing a plastic fuel tank for an automobile.

[0040] According to an advantageous implementation of the method for manufacturing a plastic fuel tank for an automobile according to the invention, said method comprises at least the following steps: extruding a tubular parison; - inserting the device for a plastic fuel tank for an automobile according to the present invention into a cylindrical parison, the device being in an initial configuration in which the components of the fuel system are located at a first distance d1 from the frame; deploying the device from an initial configuration in which the fuel system component is located a first distance d1 from the frame to a final configuration in which the fuel system component is located a second distance d2 from the frame, the first distance d1 being less than the second distance d2; - stopping the deployment of the device when it has reached its final configuration using stop means present on the frame; Includes.

[0041] According to a preferred implementation of the method for manufacturing a plastic fuel tank for an automobile according to the present invention, the step of inserting the device into the tubular parison is carried out using an insertion means such as an insertion rod.

[0042] According to a preferred implementation of the method for manufacturing a plastic fuel tank for an automobile according to the present invention, the deployment step of the device is carried out by translation and / or rotation of the mobile support means of the fuel system components relative to the frame. Preferably, the deployment step of the device is initiated upon, and more preferably by, the removal of the insert means. The expression "removal of the insert means" means the removal of the insert means from the parison, i.e., the insert means is not left in the tank obtained upon completion of manufacturing. The insert means is removed before blow molding of the parison, which gives the tank its final shape in the mold.

[0043] According to a preferred implementation of the method for manufacturing a plastic fuel tank for a motor vehicle according to the invention, the deployment step of the device is performed by rotation of the mobile support means of the component of the fuel system relative to the frame. Preferably, the rotation of the mobile support means is performed by gravity or mechanical means when the insertion means is removed. When the rotation of the mobile support means is performed by gravity, the rotation is initiated by the action of the weight of the mobile support means and the component when the insertion means is removed. Advantageously, the insertion means is an insertion rod with a retaining notch on which a part of the mobile support means is blocked when the device is in the initial configuration, and it is the withdrawal of the insertion rod that disengages the mobile support means from the notch and allows it to rotate by gravity. Alternatively, the rotation of the mobile support means is performed by mechanical means when the insertion means is removed. Advantageously, the mechanical means consists of the insertion means with a clipping means for the mobile support means.

[0044] According to a preferred implementation of the method for manufacturing a plastic fuel tank for a motor vehicle according to the invention, the deployment step of the device from the initial configuration to the final configuration is performed by translation of the mobile support means of the component relative to the frame. Preferably, the translation of the mobile support means is performed by mechanical means when the insertion means is removed. The mechanical means is constituted by the insertion means and the guiding means of the mobile support means. Alternatively, the mechanical means is constituted by a transverse actuator.

[0045] According to a preferred implementation of the method for manufacturing a plastic fuel tank for an automobile according to the invention, the method comprises a step of blocking the movable support means when the device is in its final configuration, said blocking step being carried out by means of stop means present on the frame.

[0046] Another object of the present invention is to provide a plastic automotive tank comprising a device for a plastic automotive tank according to the invention.

[0047] Other characteristics and advantages of the present invention will become more apparent from the following description of a preferred embodiment, given by way of non-limiting illustrative example only, in conjunction with the accompanying drawings, in which: FIG. [Brief explanation of the drawings]

[0048] [Figure 1] 1 shows a device for a plastic fuel tank for a motor vehicle according to the present invention in an initial configuration; FIG. [Figure 2] 1 shows the blocking means of the mobile support means of the device according to the invention when the device is in its initial configuration; FIG. [Figure 3] 1 shows a device for a plastic fuel tank for a motor vehicle according to the invention in its final configuration; FIG. [Figure 4] 1 shows the travel stop means of the mobile support means of the device according to the invention when the device is in its final configuration; FIG. [Figure 5] 3 shows a first alternative for the blocking means of the movable support means for the components of the fuel system shown in FIG. 2 when the device is in an initial configuration; [Figure 6] 3 shows a second alternative for the blocking means of the movable support means for the components of the fuel system shown in FIG. 2 when the device is in its initial configuration; FIG. [Figure 7] 3 shows a third alternative for the blocking means of the movable support means for the components of the fuel system shown in FIG. 2 when the device is in its initial configuration; [Figure 8] 1 shows a device for a plastic fuel tank for a motor vehicle according to the present invention in an initial configuration; FIG. [Figure 9] 1 shows a device for a plastic fuel tank for an automobile according to the invention in its final configuration; FIG. [Figure 10] 3 shows a fourth alternative for the blocking means of the movable support means for the components of the fuel system shown in FIG. 2 when the device is in its initial configuration; [Figure 11]1A-1C show the steps of inserting the device into a cylindrical parison in its initial configuration. [Figure 12] FIG. 1 shows the device in its final configuration in a plastic automotive fuel tank. DETAILED DESCRIPTION OF THE INVENTION

[0049] FIG. 1 illustrates one embodiment of an apparatus 1 for a plastic fuel tank for an automobile according to the present invention. The apparatus includes at least one frame 10, a fuel system component 11, and at least one movable support means 12 for the fuel system component 11, the movable support means 12 for the fuel system component 11 being fixed to the frame and movable relative to the frame between an initial configuration in which the fuel system component is located at the first distance d1 from the frame, where the first distance d1 is smaller than the second distance d2, and a final configuration in which the fuel system component is located at the second distance d2 from the frame. The apparatus has a longitudinal direction along the (X:Y) plane and a height along the Z axis. Because the apparatus shown in FIG. 1 is asymmetric, the geometric center (C) of the apparatus is illustrated on the central longitudinal plane (X;Y) of the apparatus (i.e., the longitudinal plane that divides the entire apparatus into two portions of approximately equal volume). The geometric center (C) is the center of the largest segment (S) of the apparatus in this central longitudinal plane. The peripheral volumes (V1, V2) defined by the frame and component peripheral points, i.e., the points of the frame and component farthest in a given direction from the geometric center (C) of the device, are shown. In the initial configuration (FIG. 1), the frame and component occupy a first peripheral volume V1. In the final configuration (FIG. 3), the frame and component occupy a second peripheral volume V2, which is greater than the first peripheral volume V1. Distance d1 is included in volume V1, and distance d2 is included in volume V2. Distances d1 and d2 are the shortest distances between the main portion of the frame and the peripheral points of the components in the transverse plane (Y; Z) of the device. The device shown in FIG. 1 is in the initial configuration. The frame 10 includes a means (not shown) for stopping the movement of the movable support means 12 of the fuel system component 11 when the movable support means 12 of the fuel system component 11 is in the final configuration. The frame 10 also comprises means (not shown) for blocking the movable support means 12 of the fuel system component 11 when the movable support means 12 of the fuel system component 11 is in the initial configuration.The fuel system component 11 is an internal reinforcing element 13 having a diabolo 130 shape consisting of a central section made primarily of a material selected from the group consisting of polyoxymethylene (POM), polyphthalamide (PPA), polyketone (PK), polyamide (PA), and metal, with the two ends of the central section overmolded with high-density polyethylene (HDPE). The frame 10 has the shape of a frame made of polyethylene (PE), preferably a material selected from the group consisting of high-density polyethylene (HDPE), polyoxymethylene (POM), polyamide (PA), polyphthalamide (PPA), and polyketone (PK). The frame 10 also serves as a support for fuel system components such as ventilation lines, fuel lines, pumps, level sensors, pressure sensors, temperature sensors, quality sensors, deflectors, the internal reinforcing element 13, or valves such as flap valves, roll-over valve (ROV) type valves, or full-limit vent valve (FLVV) type valves. The frame 10 also includes a receiving member 14 configured to receive an insertion means, such as an insertion rod. The receiving member 14 preferably has a sheath shape configured to allow the insertion means to slide therethrough.

[0050] Figure 2, in conjunction with Figure 1, shows one embodiment of the blocking means 15 of the movable support means 12 for a fuel system component when the movable support means 12 for a fuel system component is in an initial configuration. The blocking means 15 has the form of a first rib 150 present on the frame 10 abutting a second rib 151 present on the movable support means 12.

[0051] FIG. 3 shows the apparatus 1 for the automotive plastic fuel tank shown in FIG. 1. The apparatus includes at least one frame 10, a fuel system component 11, and at least one movable support means 12 for the fuel system component 11, the movable support means 12 for the fuel system component 11 being fixed to the frame and movable relative to the frame between an initial configuration in which the fuel system component is positioned at a first distance d1 from the frame and a final configuration in which the fuel system component is positioned at a second distance d2 from the frame, the first distance d1 being smaller than the second distance d2. The apparatus shown in FIG. 3 is in the final configuration. The frame 10 includes a means (not shown) for stopping movement of the movable support means 12 for the fuel system component 11 when the movable support means 12 for the fuel system component 11 is in the final configuration. The frame 10 also includes a means (not shown) for blocking the movable support means 12 for the fuel system component 11 when the movable support means 12 for the fuel system component 11 is in the initial configuration. The fuel system component 11 is an internal reinforcing element 13 having a diabolo 130 shape consisting of a central section made primarily of a material selected from the group consisting of polyoxymethylene (POM), polyphthalamide (PPA), polyketone (PK), polyamide (PA), and metal, with the two ends of the central section overmolded with high-density polyethylene (HDPE). The frame 10 has the shape of a frame made of polyethylene (PE), preferably a material selected from the group consisting of high-density polyethylene (HDPE), polyoxymethylene (POM), polyamide (PA), polyphthalamide (PPA), and polyketone (PK). The frame 10 also serves as a support for fuel system components such as ventilation lines, fuel lines, pumps, level sensors, pressure sensors, temperature sensors, quality sensors, deflectors, the internal reinforcing element 13, or valves such as flap valves, roll-over valve (ROV) type valves, or full-limit vent valve (FLVV) type valves. The frame 10 also includes a receiving member 14 configured to receive an insertion means, such as an insertion rod. The receiving member 14 preferably has a sheath shape configured to allow the insertion means to slide therethrough.

[0052] Figure 4, in conjunction with Figure 3, shows one embodiment of the movement stopping means 16 of the movable support means 12 for a fuel system component when the movable support means 12 for a fuel system component is in its final configuration. The stopping means 16 has the form of a third rib 161 present on the frame 10 onto which a fourth rib 160 present on the movable support means 12 rests. The stopping is achieved by deformation of the fourth rib 160, such as a clip. The movement of the movable support means 12 relative to the frame is achieved by rotation about a hinge-type mechanism 17.

[0053] 5 shows a first alternative for the blocking means of the mobile support means of the fuel system component shown in FIG. 2 when the mobile support means of the component is in its initial configuration. According to this first alternative, the mobile support means 12 of the fuel system component 11 preferably comprises a rod-shaped central portion 120, a first end portion 121 configured to interact with an insertion means 2, e.g., an insertion rod, and a second end portion (not shown) provided with an attachment means of the fuel system component. The first end portion 121 of the mobile support means 12 has the shape of a rod-shaped extension of the central portion 120 of the mobile support means 12, with the first end portion 121 and the central portion 120 forming a 90-degree angle. The first end portion 121 abuts against a portion 20 of the insertion means 2, which is inserted into a receiving member 14 of the frame 10, the receiving member having the shape of a sheath that allows the insertion means 2 to slide. Such placement of the first end 121 on the insertion means allows gravity to rotate the movable support means when the insertion means is removed.

[0054] FIG. 6 shows a second alternative for the blocking means of the movable support means of the component of the fuel system shown in FIG. 2 when the movable support means of the component is in its initial configuration. In this second alternative, the first end 121 of the movable support means 12 abuts against the insert means 2, which is inserted into the receiving member 14 of the frame 10. The receiving member has a sheath shape that allows the insert means 2 to slide. The portion 20 of the insert member 2 against which the first end 121 of the movable support means 12 abuts has a recess 200. This arrangement of the first end 121 on the insert means allows the movable support means to rotate using gravity when the insert means is removed. The presence of the recess 200 allows the movable support means 12 to be kept firmly in place when the device 1 is in its initial configuration.

[0055] FIG. 7 shows a third alternative for the blocking means of the movable support means of the fuel system component shown in FIG. 2 when the movable support means of the component is in its initial configuration. According to this third alternative, the movable support means 12 includes a central portion 120, a first end portion 121 configured to interact with the insertion means 2, and a second end portion 122 provided with an attachment means (not shown) for the fuel system component 11. The first end portion 121 of the movable support means 12 has the shape of a rod-shaped extension of the central portion 120 of the movable support means 12, and the first end portion 121 and the central portion 120 form an angle of less than 90 degrees. The first end portion 121 is hooked to a portion 20 of the insertion means 2 by a clip. The insertion means 2 is inserted into a receiving member 14 of the frame 10, which has a sheath shape that allows the insertion means 2 to slide. The movable support means 12 is moved by the power of the insertion means 2 during the removal operation. It can be observed that the movement in this case is by rotation about a hinge-type mechanism 17, and this rotation, brought about by the actuation mechanism of the movable support means 12 of the component 11, causes the component 11 to rise from its initial position within the device.

[0056] FIG. 8 shows one embodiment of an apparatus 1 for a plastic fuel tank for an automobile according to the present invention, assembled on an insertion means 2. The apparatus includes at least one frame 10, a fuel system component 11, and at least one movable support means 12 for the fuel system component 11, the movable support means 12 for the fuel system component 11 being fixed to the frame and movable relative to the frame between an initial configuration in which the fuel system component is positioned at the first distance d1 from the frame, where the first distance d1 is smaller than the second distance d2, and a final configuration in which the fuel system component is positioned at the second distance d2 from the frame. The apparatus shown in FIG. 8 is in the initial configuration. The frame 10 includes a means (not shown) for stopping the movement of the movable support means 12 for the fuel system component 11 when the movable support means 12 for the fuel system component 11 is in the final configuration. The fuel system component 11 is an internal reinforcing element 13 having a diabolo 130 shape consisting of a central section made primarily of a material selected from the group consisting of polyoxymethylene (POM), polyphthalamide (PPA), polyketone (PK), polyamide (PA), and metal, with the two ends of the central section overmolded with high-density polyethylene (HDPE). The frame 10 has the shape of a frame made of polyethylene (PE), preferably a material selected from the group consisting of high-density polyethylene (HDPE), polyoxymethylene (POM), polyamide (PA), polyphthalamide (PPA), and polyketone (PK). The frame 10 also serves as a support for fuel system components such as ventilation lines, fuel lines, pumps, level sensors, pressure sensors, temperature sensors, quality sensors, deflectors, the internal reinforcing element 13, or valves such as flap valves, roll-over valve (ROV) type valves, or full-limit vent valve (FLVV) type valves. The frame 10 also includes a receiving member 14 configured to receive an insertion means 2, such as an insertion rod. The receiving member 14 preferably has a sheath shape that allows the insertion means 2 to slide.The mobile support means 12 of the fuel system component 11 comprises a rod-shaped central portion 120, a first end 121 configured to interact with the insertion means 2, e.g., an insertion rod, and a second end 122 provided with an attachment means 1220 of the fuel system component. The central portion 120 of the mobile support means 12 slides in a guide member 18 present on the frame 10. This sliding of the central portion 120 within the frame 10 results in a translational movement of the mobile support means 12 relative to the frame 10. This translational movement is caused by the interaction between the first end 121 of the mobile support means 12 and a part 20 of the insertion means 2 upon the withdrawal movement of the insertion means 2. It is the shape of the part 20 of the insertion means 2 that is responsible for the movement of the mobile support means 12.

[0057] Figure 9 shows the device 1 for a plastic automotive fuel tank shown in Figure 8 in its final position. The device includes at least one frame 10 in the form of a frame, a fuel system component 11, and at least one movable support means 12 for the fuel system component 11, the movable support means 12 for the fuel system component 11 being fixed to the frame and movable relative to the frame. The frame 10 is provided with means (not shown) for stopping the movement of the movable support means 12 for the fuel system component 11 when the movable support means 12 for the fuel system component 11 is in its final configuration. The fuel system component 11 has an internal reinforcing element 13 in the form of a diabolo 130, consisting of a central part made primarily of a material selected from polyoxymethylene (POM), polyphthalamide (PPA), polyketone (PK), polyamide (PA), and metal, and two end parts of the central part overmolded with high-density polyethylene (HDPE). The frame 10 has the form of a frame made of polyethylene (PE), preferably a material selected from the group consisting of high-density polyethylene (HDPE), polyoxymethylene (POM), polyamide (PA), polyphthalamide (PPA), and polyketone (PK). The frame 10 also serves as a support for components of the fuel system, such as ventilation lines, fuel lines, pumps, level sensors, pressure sensors, temperature sensors, quality sensors, deflectors, internal reinforcement elements 13, or valves, such as flap valves, roll-over valve (ROV) type valves, or full tank limiting vent valve (FLVV) type valves. The frame 10 also includes a receiving member 14 configured to receive an insertion means 2, such as an insertion rod. The receiving member 14 preferably has a sheath shape that allows the insertion means 2 to slide. The movable support means 12 of the fuel system component 11 comprises a rod-shaped central part 120, a first end 121 configured to interact with an insertion means 2, for example an insertion rod, and a second end 122 provided with a fixing means 1220 of the fuel system component.

[0058] 10 shows a fourth alternative for the blocking means of the mobile support means of the component of the fuel system shown in FIG. 2 when the mobile support means of the component is in its initial configuration. According to this fourth alternative, the mobile support means 12 comprises a central portion 120, a first end portion 121 configured to interact with the insertion means 2, and a second end portion 122 with an attachment means 1220 for the component of the fuel system 11. The first end portion 121 of the mobile support means 12 has the shape of a rod-shaped extension of the central portion 120 of the mobile support means 12, and the first end portion 121 and the central portion 120 form an angle of 180 degrees. The first end portion 121 is fixed on an actuator 21 located on a portion 20 of the insertion means 2. The insertion means 2 is inserted into a receiving member 14 of the frame 10, which has the shape of a sheath that allows the insertion means 2 to slide. The movable support means 12 is moved by the power of the actuator 21 during the removal operation of the insertion means 2. It is observed that the movement in this case is a translational movement, and the central part 120 slides in the guide member 18 present on the frame 10.

[0059] 11 and 12 respectively show the insertion step of the device in the initial configuration into the tubular parison and the device in its final configuration in the tank. Distances d1 and d2 extend in the longitudinal plane (X:Y) of the device from an axis L parallel to the longitudinal axis X of the device located in the longitudinal plane (X:Y). FIG. 11 shows the device according to the invention in its initial configuration, without the insertion means shown, in which the device 1 is inserted into the tubular parison 3 to be extruded using the extrusion head 4, with the fuel system component 11 positioned at a first distance d1 from the frame 10. The outline of the finished tank 5 in which the device 1 is located is shown for reference. FIG. 12 shows the resulting tank 5, with the device 1 in its final position. The fuel system component 11 is positioned at a second distance d2 from the frame 10, with the first distance d1 being less than the second distance d2. A stop means present on the frame 10 stops the movement of the movable support means 12 for the component 11 to reach this final configuration. The method shown in Figures 11 and 12 solves the problem of the size of the device inserted into the tubular parison, which is related to the diameter of the parison to be extruded. In practice, the tubular parison to be extruded has a predetermined diameter. The shape of the parison, i.e., its diameter, can vary due to extrusion constraints. As a result, the device inserted into the tubular parison must fit within a circle with a diameter smaller than the inner diameter of the tubular parison. After blow molding, the internal cavity of the resulting tank has dimensions exceeding the inner diameter of the tubular parison, which limits the placement of the inserted components. The device according to the present invention solves this problem of reduced diameter without using a relatively small device to ensure a safety clearance between the inserted device and the tubular parison (which would reduce the allowable size of the inserted device, e.g., 120 mm). Therefore, the inserted device according to the present invention can meet the performance requirements of the product. For example, in a pressurized tank, internal reinforcement elements are positioned appropriately. In a ventilation system, valves are installed in a position that does not result in a loss of effective volume. [Explanation of symbols]

[0060] 1 device 2. Insertion Method 3 Cylindrical parison 4 Extrusion Head 5 Tank 10 frames 11 Components 12 Movable support means 13 Internal reinforcement elements 14 Receiving member 15 Blocking Methods 16 Movement stopping means 17 Hinge-type mechanism 18 Guide member 20 (Part of the insertion means) 120 Central part 121 first end 122 second end 130 Diavolo 150 First Rib 151 Second Rib 160 Fourth Rib 161 Third Rib 200 Hollowed out 1220 Mounting means, fastening means d1 First distance d2 Second distance C Geometric center of the device S Maximum segment of the device V1 First peripheral volume V2 Second peripheral volume

Claims

1. A device (1) for a plastic fuel tank (5) for a motor vehicle, comprising: at least one frame (10), a component of the fuel system (11), at least one mobile support means (12) for said component (11) of said fuel system; and wherein the movable support means (12) for the component (11) of the fuel system is fixed to the frame (10), and the component (11) of the fuel system is positioned at a first distance d from the frame (10). １ and an initial configuration in which the component (11) of the fuel system is positioned at a second distance d from the frame (10). ２ and a final configuration at a position d １ is the second distance d ２ Smaller, the frame (10) comprises means (16) for stopping movement of the movable support means (12) for the fuel system component (11) when the movable support means (12) for the fuel system component (11) is in a final configuration, the fuel is gasoline, the component (11) of the fuel system is an internal reinforcing element (13), A device (1) characterized in that

2. 2. The device (1) for a plastic fuel tank (5) for a motor vehicle according to claim 1, wherein the movable support means (12) for the components of the fuel system move translationally and / or rotationally relative to the frame (10).

3. 3. The apparatus (1) for a plastic fuel tank (5) for a motor vehicle (2) according to claim 2, wherein the movable support means (12) for the components of the fuel system move in a rotational manner relative to the frame (10).

4. 4. The device (1) for a plastic fuel tank (5) for an automotive vehicle (5) according to any one of claims 1 to 3, wherein the frame (10) comprises blocking means (15, 150) for the movable support means (12) of the component (11) of the fuel system, and in an initial configuration, the movable support means (12) of the component (11) is blocked.

5. 5. The device (1) for a plastic fuel tank (5) for an automotive vehicle according to claim 1, wherein the movable support means (12) for the component (11) of the fuel system comprises a preferably rod-shaped central portion (120), a first end (121) configured to interact with an insertion means (2), for example an insertion rod, and a second end (122) provided with attachment means (1220) for the component (11) of the fuel system.

6. 6. The device (1) for a plastic fuel tank (5) for an automobile according to claim 5, wherein the first end (121) of the movable support means (12) interacts with the insertion means (2) such that removal of the insertion means (2) moves the movable support means (12) to a final configuration.

7. 7. The device (1) for a plastic fuel tank (5) for a motor vehicle according to any one of claims 1 to 6, wherein the frame (10) comprises a receiving member (14) configured to receive an insertion means (2), such as an insertion rod.

8. A method for manufacturing a plastic fuel tank (5) for an automobile, comprising at least the following steps: - extruding a tubular parison (3); - inserting a device (1) for a plastic fuel tank (5) for an automobile (1) according to any one of claims 1 to 7 into the cylindrical parison (3), the device (1) being arranged so that the component (11) of the fuel system is at a first distance d from the frame (10); １ and a step of: the component (11) of the fuel system is at a first distance d from the frame (10); １ from the initial configuration at a second distance d ２ and deploying the device (1) to a final configuration located at the first distance d １ is the second distance d ２ Smaller steps and - stopping the deployment of the device (1) when it has reached its final configuration using stop means (16) present on the frame (10); A manufacturing method comprising:

9. 9. The method for manufacturing a plastic fuel tank (5) for an automobile according to claim 8, wherein the step of inserting the device (1) into the cylindrical parison (3) is performed using an insertion means (2) such as an insertion rod.

10. 10. The method for manufacturing a plastic fuel tank (5) for a motor vehicle according to claim 8 or 9, wherein the step of deploying the device (1) from the initial configuration to the final configuration is performed upon removal of the insertion means (2).

11. 11. A method for manufacturing a plastic fuel tank (5) for an automobile according to any one of claims 8 to 10, wherein the unfolding step of the device (1) from the initial configuration to the final configuration is performed by rotation of a movable support means (12) of the component (11) relative to the frame (10).

12. 12. A method for manufacturing a plastic fuel tank (5) for an automobile according to any one of claims 8 to 11, wherein the unfolding step of the device (1) from the initial configuration to the final configuration is performed by translation of the movable support means (12) of the component (11) relative to the frame (10).

13. 12. The method for manufacturing a plastic fuel tank (5) for an automobile according to claim 11, wherein the rotation of the movable support means (12) is performed by gravity or mechanical means when the insertion means (2) is removed.

14. 13. A method for manufacturing a plastic fuel tank (5) for a motor vehicle according to claim 12, wherein the translation of the movable support means (12) is performed by mechanical means when the insertion means (2) is removed.

15. A plastic fuel tank (5) for a motor vehicle, comprising a device (1) for a plastic fuel tank for a motor vehicle according to any one of claims 1 to 7.

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