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WO2025061938A1 - Structure d'assemblage dans un reservoir de carburant en plastique - Google Patents

Structure d'assemblage dans un reservoir de carburant en plastique Download PDF

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Publication number
WO2025061938A1
WO2025061938A1 PCT/EP2024/076427 EP2024076427W WO2025061938A1 WO 2025061938 A1 WO2025061938 A1 WO 2025061938A1 EP 2024076427 W EP2024076427 W EP 2024076427W WO 2025061938 A1 WO2025061938 A1 WO 2025061938A1
Authority
WO
WIPO (PCT)
Prior art keywords
fuel tank
plastic fuel
transfer means
plastic
reinforcement
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/EP2024/076427
Other languages
English (en)
Inventor
Jean-Christophe Lemaire
Tae-Hong Kye
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Plastic Omnium Advanced Innovation and Research SA
Original Assignee
Plastic Omnium Advanced Innovation and Research SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Plastic Omnium Advanced Innovation and Research SA filed Critical Plastic Omnium Advanced Innovation and Research SA
Publication of WO2025061938A1 publication Critical patent/WO2025061938A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • 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
    • B60K15/06—Fuel tanks characterised by fuel reserve systems
    • 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
    • B60K2015/03032—Manufacturing of fuel tanks
    • B60K2015/03052—Fuel tanks made of two balloons, one inside the other
    • 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
    • B60K2015/03111—Swirl pots
    • 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
    • B60K15/077—Fuel tanks with means modifying or controlling distribution or motion of fuel, e.g. to prevent noise, surge, splash or fuel starvation
    • B60K2015/0775—Fuel tanks with means modifying or controlling distribution or motion of fuel, e.g. to prevent noise, surge, splash or fuel starvation for reducing movement or slash noise of fuel
    • 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
    • B60K15/077—Fuel tanks with means modifying or controlling distribution or motion of fuel, e.g. to prevent noise, surge, splash or fuel starvation
    • B60K2015/0777—Fuel tanks with means modifying or controlling distribution or motion of fuel, e.g. to prevent noise, surge, splash or fuel starvation in-tank reservoirs or baffles integrally manufactured with the fuel Tank

Definitions

  • the invention relates to a fuel tank for vehicles. More precisely, the invention relates to a structure for fixed assembly inside a plastic fuel tank, a plastic fuel tank system for a vehicle equipped with such a structure, a vehicle comprising such a plastic fuel tank system and a method of manufacturing such a plastic fuel tank system.
  • Plastic fuel tanks contribute to a reduction in the overall weight of vehicles and allow more flexibility in the design of the fuel tank, resulting in lighter tanks with more usable volume.
  • Documents US 10 029 561 B2, US 2008/169033 A1 and US 2004/251194 A1 disclose examples of such plastic fuel tanks.
  • the plastic fuel tanks are generally manufactured using processes such as blow-moulding or injection-moulding, wherein a thermoplastic molten material is used for forming a desired product, such as a fuel tank.
  • internal structures of the fuel tank are introduced into the tank during the forming of the tank.
  • Such structures introduced into the tank can include reinforcement elements, required to reinforce the tank in the instances of pressure increases within the tank, and anti-slosh devices, which are used to minimise any slosh noise created by fuel in the tank.
  • the fuel pump can continuously supply fuel to the engine.
  • the supply of fuel to the fuel pump is hindered, resulting in the engine being deprived of fuel.
  • the suction tube functions as a means to reach remote areas of the bottom of the tank, thereby allowing a steady supply of fuel to the fuel pump, even in instances of low fuel volume in the tank and instances when the vehicle is cornering or driving on an inclined route.
  • the suction tube is generally a flexible tube with a suction point.
  • This has the drawback that the suction point of the suction tube can move.
  • the precise location of the suction point in the tank is unknown at any given moment, leading to the suction tube not optimally collecting fuel in required locations.
  • longer suction tubes are required for its function. The increased length of the suction tube causes the suction point to move even more, leading to the suction tube not optimally collecting fuel in required locations.
  • the present invention aims to solve at least the aforementioned problem.
  • a structure for fixed assembly inside a plastic fuel tank comprises at least one rigid structural element configured to be fixed inside a plastic fuel tank and at least one transfer means having a first end and a second end is provided.
  • the at least one transfer means comprises a line and is configured to transfer fuel from the first end of the at least one transfer means to the second end of the at least one transfer means.
  • the structure further comprises at least one delivery point at the second end of the transfer means and said at least one delivery point is configured to deliver fuel to a fuel pump located inside the plastic fuel tank.
  • the structure further comprises at least one suction point at the first end of the transfer means, said at least one suction point is configured to suck fuel from inside the plastic fuel tank from a remote location of the fuel pump.
  • the at least one transfer means and the at least one suction point are integrally formed with the at least one rigid structural element.
  • the at least one rigid structural element comprises an anti-slosh means, such as a baffle.
  • the at least one transfer means and the at least one suction point are integrally formed with the at least one rigid structural element, and because the structure is to be fixedly assembled inside a plastic fuel tank, the movement of the suction point is thereby neutralized.
  • first end and second end of the at least one transfer means should be understood as defining opposite ends of the at least one transfer means connected together by said at least one transfer means.
  • integrally formed in relation to the at least one rigid structural element, the at least one transfer means and the at least one suction point, should be understood as meaning that these components are not assembled together but are portions of a unitary, one-piece whole.
  • the at least one transfer means integrally formed with the at least one rigid structural element is preferably, a single transfer means.
  • transfer means should be understood as defining a tube or a line that is suitable for transferring fuel from the at least one suction point to the at least one delivery point.
  • the at least one suction point integrally formed with the at least one rigid structural element is a single suction point.
  • the plurality of suction points may be present in combination with the plurality of transfer means integrally formed with the at least one rigid structural element, thereby optimising fuel collection in a remote location of the fuel pump.
  • the at least one rigid structural element and the transfer means may be made from any suitable thermoplastic materials known in the state of the art suitable for use in the manufacturing process of plastic fuel tanks, such as polyoxymethylene or high-density polyethylene.
  • the structure is a carrier.
  • carrier may be understood as defining a carrying means for functional components of the plastic fuel tank.
  • the functional components may be arranged on the carrier or integrated with the carrier.
  • a functional component should be understood as defining fuel tank components known in the state of the art that are required for the optimal functioning of the vehicle.
  • Examples of a functional component may include a valve, a fuel hose, a sensor.
  • the at least one rigid structural element comprises an anti-slosh means.
  • the anti-slosh means may be a baffle or any device that is installed inside a fuel tank in order to prevent or at least to limit the slosh noise in the tank by absorbing the kinetic energy of the waves and reduce the sloshing impact by lowering the momentum of generated waves caused by the fuel.
  • the anti-slosh means is a baffle which is perforated with one or a plurality of holes having a total section representing a percentage of the baffle’s body surface.
  • the one or plurality of holes provide a dampening effect of the baffle by increasing the contact areas where shearing forces are dissipated.
  • the anti-slosh means is integrally formed with the at least one rigid structural element. This allows the transfer means to be in closer proximity to the bottom of the fuel tank, thereby optimising the amount of fuel that can be transferred to the fuel pump in instances of low fuel volume or the vehicle being in a state of being inclined.
  • the structure further comprises at least one reinforcement means.
  • the at least one reinforcement means may be a reinforcement pillar or any suitable element that functions as a means to reduce deformations of the tank when the tank is under increased pressure.
  • the at least one reinforcement means is vertically orientated within a vehicle equipped with the fuel tank comprising the structure.
  • the at least one reinforcement element is two reinforcement elements located in different parts of the structure. This further improves the reinforcement of the plastic fuel tank in more than one location.
  • the at least one reinforcement element may be made from the same material as the at least one rigid structural element or a different material from the at least one rigid structural element.
  • the at least one reinforcement means is integrally formed with the at least one rigid structural element and the at least one transfer means is integrally formed with the at least one reinforcement means. This allows the at least one transfer means to be in a closer proximity to the bottom of the fuel tank to collect fuel in remote regions of said bottom of tank.
  • the at least one reinforcement means is integrally formed with the at least one rigid structural element and the at least one suction point is integrally formed with the at least one reinforcement means. This allows the location of the suction point to be determined with more precision, thereby optimising the amount of fuel that can be transferred to the fuel pump in instances such as the vehicle cornering or when the fuel volume of the tank is low, such as less than approximately 10% of the total fuel tank capacity.
  • the at least one reinforcement means further comprises at least one hole. This allows a certain amount of fuel to enter the at least one reinforcement means, thereby increasing the usable volume within the fuel tank.
  • the at least one reinforcement means comprises at least one connecting means configured to be welded or bonded to the inside of the plastic fuel tank so as to connect the at least one reinforcement means with the inside of the plastic fuel tank.
  • the at least one connecting means is configured to connect a reinforcement means with an inner wall of the plastic fuel tank.
  • each reinforcement means has a first connecting means and a second connecting means.
  • the first connecting means of each of the reinforcement means is arranged at a top portion the reinforcement means.
  • the second connecting means of each of the reinforcement means is arranged at a bottom portion of the reinforcement means.
  • top portion and bottom portion of the at least one reinforcement means is to be understood as referring to the two furthermost parts of the at least one reinforcement means in a longitudinal direction, which are configured to be in direct contact with the interior of the plastic fuel tank.
  • the connecting means may be welding pads, made of the same material as the at least one reinforcement element or a different material from the at least one reinforcement element.
  • the connecting means may be a part of the at least one reinforcement element that can be bonded to the interior of the plastic fuel tank.
  • the at least one transfer means is fitted with a mesh or grid.
  • the mesh or grid works as a filter that can remove debris from the fuel collected by the suction point, thereby optimising the quality of the fuel to be transferred from the fuel tank to the fuel pump.
  • the structure comprises a suction cup connected to the at least one transfer means.
  • Such a suction cup forms an extension of the at least one transfer means, allowing to collect fuel from more remote locations within the plastic fuel tank.
  • the suction cup comprises a flexible line. This allows the suction cup to adapt to the geometry of the plastic fuel tank in order to ensure that the at least one transfer means can collect fuel when the plastic fuel tank is almost empty.
  • the flexible line and/or the suction cup is fitted with a mesh or a grid.
  • the mesh or grid works as a filter that can remove debris from the fuel collected by the flexible line or the suction cup, thereby optimising the quality of the fuel to be transferred from the fuel tank to the fuel pump.
  • a plastic fuel tank system for a vehicle comprises a plastic fuel tank having a body defining an interior space of the plastic fuel tank, the structure according to the first aspect of the invention and any of its described embodiments wherein the structure is fixedly assembled inside the body of the plastic fuel tank and the at least one suction point is located in a bottom of the body of the plastic fuel tank at a location remote from the fuel pump.
  • the at least one delivery point is connected to an inlet port of the fuel pump.
  • the delivery point is connected to the inlet port of the fuel pump via a connector (e.g. a quick connect) and a connector pipe, such as those suitable for the function of fuel transfer.
  • the plastic fuel tank comprises a recess in the bottom of the body and the at least one suction point is located in the recess.
  • a recess provides a ”reservoir” of fuel to be sucked by the fuel pump when the plastic fuel tank is almost empty.
  • the suction point comes with a flexible line, its movement is limited by the recess, which ensures the flexible line remains at least partially within the recess so as to collect fuel from the recess.
  • the body of the plastic fuel tank has a saddle configuration.
  • a vehicle comprising the plastic fuel tank system according to the second aspect of the invention.
  • vehicle may be understood as defining a machine with wheels and an engine, suitable for the transport of passengers or goods.
  • the vehicle has a front portion, and a rear portion and the driver’s seat of the vehicle is positioned at the front portion of the vehicle.
  • the vehicle is moving along a plane indicated from the rear portion of the vehicle to the front portion of the vehicle.
  • the plastic fuel tank system contained in the vehicle is arranged longitudinally along the plane indicated from the rear portion of the vehicle to the front portion of the vehicle.
  • a method of manufacturing a plastic fuel tank for the plastic fuel tank system according to the second aspect of the invention, by a process of blow-moulding is provided.
  • the method comprises the steps of providing a parison, providing an insertion pin, and coupling the structure according to the first aspect of the invention and any of its described embodiments with said insertion pin.
  • the method further comprises inserting said structure that is coupled with the insertion pin inside the parison and blow-moulding the parison into the body of the plastic fuel tank.
  • the term “parison” refers to an extruded thermoplastic molten material.
  • the parison is extruded between two mould halves that unitarily combine to form a desired shape of the plastic fuel tank to be produced.
  • thermoplastic molten materials for plastic fuel tanks are known in the state of the art.
  • first element or second element as well as first parameter and second parameter, or first criterion and second criterion, and so on.
  • first element or second element as well as first parameter and second parameter, or first criterion and second criterion, and so on.
  • indexing is a simple indexing for differentiate and name elements or parameters or criteria that are close but not identical. This indexing does not imply a priority of one element, parameter or criterion with respect to another, and it is easy to interchange such denominations without departing from the scope of the present description. This indexing does not imply an order in time either.
  • FIGS. 1A and 1B show a vehicle 100 comprising a plastic fuel tank system according to an example of two embodiments of the invention.
  • the vehicle 100 comprises a body extending longitudinally along a longitudinal axis Y1 and transversally along a transversal axis X.
  • the vehicle further comprises a front portion 102, a rear portion 104 and a driver’s seat 107.
  • the driver’s seat 107 is positioned at the front portion 102 of the vehicle 100.
  • the plastic fuel tank system comprises a plastic fuel tank 200 having a body 206 extending longitudinally along a longitudinal axis Y2.
  • the plastic fuel tank 200 is arranged longitudinally with respect to axis Y1 (i.e., axis Y2 is parallel to axis Y1) whereas, in , the plastic fuel tank 200 is arranged transversally to axis Y1 (i.e., axis Y2 is perpendicular to axis Y1).
  • FIG. 1 shows an external side view of a plastic fuel tank system according to an example embodiment of the invention.
  • the plastic fuel tank system comprises a structure 230 fixedly assembled inside a plastic fuel tank 200.
  • the structure 230 may be a carrier.
  • the structure 230 comprises a rigid structural element with a geometry and dimensions suitable for the rigid structural element to serve as a carrier.
  • an element when an element is described as being integrally formed with the structure, it means that said element is integrally formed with the rigid structural element of the structure.
  • the structure 230 comprises at least one transfer means 210 having a first end 207 and a second end 209.
  • the at least one transfer means 210 is configured to transfer fuel from the first end 207 of the at least one transfer means 210 to the second end 209 of the at least one transfer means 210.
  • At least one delivery point 216 is present at the second end 209 of the transfer means 210 to deliver fuel to an inlet of a fuel pump via a connector 217 (e.g., a quick connect) and a connector pipe 218.
  • the fuel pump is located inside the plastic fuel tank 200.
  • the fuel pump is part of a fuel delivery module 220.
  • the structure 230 further comprises at least one suction point 214 at the first end 207 of the transfer means 210 to suck fuel from inside the plastic fuel tank 200 from a remote location of the fuel pump.
  • the at least one transfer means 210 and the at least one suction point 214 are integrally formed with the structure 230.
  • FIG. 3A is a schematic cross-section view of a plastic fuel tank system according to another example embodiment of the invention.
  • the plastic fuel tank system comprises a structure 230 fixedly assembled inside a plastic fuel tank 200.
  • the structure 230 comprises an anti-slosh means, such as a baffle.
  • the anti-slosh means is integrally formed with the structure 230 and the at least one transfer means 210 is integrally formed with the anti-slosh means.
  • the at least one suction point 214 is integrally formed with the structure 230.
  • the structure 230 with or without an anti-slosh means further comprises at least one reinforcement means 303, 305.
  • the at least one reinforcement means 303, 305 has a body extending longitudinally along a longitudinal axis Z.
  • the at least one reinforcement means 303, 305 is two reinforcement means 303, 305 and each of the two reinforcement means 303, 305 are integrally formed with the structure 230 comprising the anti-slosh means.
  • the anti-slosh means is a baffle which is perforated with one or a plurality of holes 231 having a total section representing a percentage of the baffle’s body surface.
  • the two reinforcement means 303, 305 are vertically orientated within the vehicle 100, i.e., axis Z is perpendicular to axis Y1 and X of the vehicle 100 described in FIG. 1.
  • Each of the two reinforcement means 303, 305 further comprise at least one hole 306.
  • the first reinforcement means 303 has a first hole 306 arranged towards the top portion of the reinforcement means 303 and a second hole 306 that is arranged towards the bottom of the first reinforcement means 303.
  • the second reinforcement means 305 has a first hole 306 that is arranged towards the top portion of the reinforcement means 305 and a second hole 306 that is arranged towards the bottom portion of the reinforcement means 305.
  • the term “arranged towards” in relation to the top portion or bottom portion of the reinforcement means should be understood as defining being close to any one of the furthermost parts of the at least one reinforcement means in a longitudinal direction.
  • Each of the two reinforcement means 303, 305 comprise at least one connecting means connecting each reinforcement means with the inside of the plastic fuel tank 200 Specifically, each connecting means connects a reinforcement means with an inner wall of the plastic fuel tank 200. shows that each reinforcement means 303, 305 has a first connecting means 311, 313 and a second connecting means 313, 314.
  • the first connecting means 311, 313 of each of the reinforcement means 303, 305 is located at a top portion of each of the reinforcement means 303, 305.
  • the second connecting means 313, 314 of each of the reinforcement means 303, 305 is located at a bottom portion of each of the reinforcement means 303, 305.
  • the connecting means 311, 312, 313, 314 are welded or bonded to the inside of the plastic fuel tank 200. Specifically, each connecting means 311, 312, 313, 314 is welded or bonded to an inner wall of the plastic fuel tank 200.
  • the at least one transfer means 210 is fitted with a mesh or grid 318, said mesh or grid 318 allowing any debris to be removed from fuel in remote areas of the fuel tank, that is sucked up through the transfer means 210 via the suction point 214 and transferred to the delivery point 216.
  • the mesh or grid 318 should be understood to be compatible with all embodiments describing a transfer means, such as in any one of FIGS. 2B to 4B.
  • the at least one transfer means 210 is integrally formed with at least one of the two reinforcement means 303, 305.
  • the at least one transfer means 210 is integrally formed with the reinforcement means 303.
  • the at least one suction point 214 at the first end 207 of the transfer means 210 remains integrally formed with the structure 230.
  • the transfer means 210 is therefore able to transfer fuel from the first end 207 to the second end 209 of the transfer means 210 through the reinforcement means 303, in order for fuel to reach the at least one delivery point 216.
  • the at least one transfer means 210 is integrally formed with one of the reinforcement means 303 and the at least one suction point 214 is integrally formed with said one of the reinforcement means 303.
  • the suction point 214 is closer to the bottom of the body 206 defining the interior of the plastic fuel tank 200, contributing to improved accuracy in fuel suction.
  • the body 206 defining the interior of the plastic fuel tank 200 may be of a saddle configuration.
  • the plastic fuel tank 200 of FIGS. 1 to 4 may be manufactured by blow molding process which comprises the steps of: providing a parison and providing an insertion pin.
  • the structure 230 as described in any one of the embodiments disclosed in FIGS. 2B to 4B is then coupled with the insertion pin.
  • the structure 230 coupled with the insertion pin is introduced into the provided parison.
  • the parison is then blow-moulding into the body 206 of the plastic fuel tank 200.
  • the plastic fuel tank system comprises a structure 230 fixedly assembled inside a plastic fuel tank 200.
  • the structure 230 comprises a suction cup 232 connected to the first end 207 of the transfer means 210.
  • the suction cup 232 comprises a flexible line which is in fluidic communication with the transfer means 210 at the interface formed by the first end 207 of the transfer means 210.
  • the flexible line of the suction cup 232 is fitted with a mesh or grid 319 preventing debris from being transferred to the fuel delivery module 220.
  • the plastic fuel tank 200 of the plastic fuel tank system of comprises a recess 234 provided within a lower wall of the plastic fuel tank 200.
  • a recess 234 can store a certain quantity of fuel even when the plastic fuel tank 200 is almost empty.
  • the flexible line of the suction cup 232 extends at least partially within the recess 234 so that the suction point 214 may collect fuel stored in the recess 234.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

L'invention concerne une structure (230) d'assemblage fixe à l'intérieur d'un réservoir de carburant en plastique comprenant au moins un élément structurel rigide configuré pour être fixé à l'intérieur d'un réservoir de carburant en plastique ; au moins un moyen de transfert (210) comprenant une ligne ayant une première extrémité (207), l'au moins un moyen de transfert (210) étant configuré pour transférer du carburant à au moins un point de distribution (216), l'au moins un point de distribution (216) étant configuré pour distribuer du carburant à une pompe à carburant située à l'intérieur du réservoir de carburant en plastique ; au moins un point d'aspiration (214) au niveau de la première extrémité (207) du moyen de transfert (210), le ou les points d'aspiration (214) étant configurés pour aspirer du carburant depuis l'intérieur du réservoir de carburant en plastique à partir d'un emplacement distant de la pompe à carburant, et le ou les moyens de transfert (210) et le ou les points d'aspiration (214) étant formés d'un seul tenant avec le ou les éléments structuraux rigides.
PCT/EP2024/076427 2023-09-22 2024-09-20 Structure d'assemblage dans un reservoir de carburant en plastique Pending WO2025061938A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
LULU103198 2023-09-22
LU103198A LU103198B1 (en) 2023-09-22 2023-09-22 Structure for assembly in a plastic fuel tank

Publications (1)

Publication Number Publication Date
WO2025061938A1 true WO2025061938A1 (fr) 2025-03-27

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PCT/EP2024/076427 Pending WO2025061938A1 (fr) 2023-09-22 2024-09-20 Structure d'assemblage dans un reservoir de carburant en plastique

Country Status (2)

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LU (1) LU103198B1 (fr)
WO (1) WO2025061938A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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