EP4500071A1 - Treibstofftank-modul - Google Patents
Treibstofftank-modulInfo
- Publication number
- EP4500071A1 EP4500071A1 EP23708430.6A EP23708430A EP4500071A1 EP 4500071 A1 EP4500071 A1 EP 4500071A1 EP 23708430 A EP23708430 A EP 23708430A EP 4500071 A1 EP4500071 A1 EP 4500071A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- individual tanks
- individual
- fuel tank
- tanks
- tank module
- 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.)
- Withdrawn
Links
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/08—Mounting arrangements for vessels
- F17C13/083—Mounting arrangements for vessels for medium-sized mobile storage vessels, e.g. tank vehicles or railway tank vehicles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/01—Shape
- F17C2201/0104—Shape cylindrical
- F17C2201/0109—Shape cylindrical with exteriorly curved end-piece
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/03—Orientation
- F17C2201/032—Orientation with substantially vertical main axis
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/05—Size
- F17C2201/058—Size portable (<30 l)
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
- F17C2203/0602—Wall structures; Special features thereof
- F17C2203/0604—Liners
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
- F17C2203/0602—Wall structures; Special features thereof
- F17C2203/0612—Wall structures
- F17C2203/0614—Single wall
- F17C2203/0619—Single wall with two layers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
- F17C2203/0634—Materials for walls or layers thereof
- F17C2203/0658—Synthetics
- F17C2203/0663—Synthetics in form of fibers or filaments
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/01—Mounting arrangements
- F17C2205/0103—Exterior arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/01—Mounting arrangements
- F17C2205/0103—Exterior arrangements
- F17C2205/0107—Frames
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/01—Mounting arrangements
- F17C2205/0103—Exterior arrangements
- F17C2205/0111—Boxes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/01—Mounting arrangements
- F17C2205/0123—Mounting arrangements characterised by number of vessels
- F17C2205/013—Two or more vessels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/01—Mounting arrangements
- F17C2205/0123—Mounting arrangements characterised by number of vessels
- F17C2205/013—Two or more vessels
- F17C2205/0134—Two or more vessels characterised by the presence of fluid connection between vessels
- F17C2205/0142—Two or more vessels characterised by the presence of fluid connection between vessels bundled in parallel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
- F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
- F17C2205/0305—Bosses, e.g. boss collars
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/01—Pure fluids
- F17C2221/012—Hydrogen
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/03—Mixtures
- F17C2221/032—Hydrocarbons
- F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/03—Mixtures
- F17C2221/032—Hydrocarbons
- F17C2221/035—Propane butane, e.g. LPG, GPL
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
- F17C2223/0107—Single phase
- F17C2223/0123—Single phase gaseous, e.g. CNG, GNC
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
- F17C2223/036—Very high pressure (>80 bar)
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2260/00—Purposes of gas storage and gas handling
- F17C2260/01—Improving mechanical properties or manufacturing
- F17C2260/011—Improving strength
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2260/00—Purposes of gas storage and gas handling
- F17C2260/01—Improving mechanical properties or manufacturing
- F17C2260/012—Reducing weight
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2270/00—Applications
- F17C2270/01—Applications for fluid transport or storage
- F17C2270/0165—Applications for fluid transport or storage on the road
- F17C2270/0168—Applications for fluid transport or storage on the road by vehicles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2270/00—Applications
- F17C2270/01—Applications for fluid transport or storage
- F17C2270/0165—Applications for fluid transport or storage on the road
- F17C2270/0168—Applications for fluid transport or storage on the road by vehicles
- F17C2270/0171—Trucks
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2270/00—Applications
- F17C2270/01—Applications for fluid transport or storage
- F17C2270/0165—Applications for fluid transport or storage on the road
- F17C2270/0184—Fuel cells
Definitions
- the invention relates to a fuel tank module for storing gas for mounting in a gas-powered vehicle, in particular a commercial vehicle, wherein the fuel tank module has a plurality of individual tanks, a support structure to which the individual tanks are attached, and at least one fastening device which includes the individual tank Holds with the help of one or more tension straps and connects them to the support structure.
- the support structure is intended to attach the fuel tank module to the vehicle.
- the individual tanks have an elongated shape, which is cylindrical in the middle area and is closed off at both ends with curved pole caps, and the individual tanks have a reinforcing layer made of fiber-reinforced plastic and a metallic connection piece, a so-called boss, on each of the pole caps.
- the support structure is used to mount the fuel tank module on the vehicle frame.
- Gas-powered vehicles for example, have a gas engine or a fuel cell with an electric motor as a drive.
- the gas which can be hydrogen among other things, is stored in the tank under high pressure.
- Typical for such pressure tanks are pressures of over 200 bar, often up to 700 bar or 875 bar. This means that the tank not only has to be gas-tight under this pressure, but also that it needs a high level of mechanical stability.
- the fuel tank must be of sufficient size for commercial vehicles, which is why such fuel tanks are often more than 2 m long. Particularly with such long fuel tanks, securing them securely to the vehicle is a challenging task, since the fuel tanks have a considerable weight and expand in the longitudinal direction of the tank given the appropriate internal pressure.
- Such individual tanks can weigh up to 300 kg.
- the individual tanks are designed in particular as hydrogen tanks, for example for vehicles with fuel cell drives or gas engines.
- the individual tanks can also be designed for biogas, propane, methane, natural gas or gas mixtures.
- Fuel tanks for gas-powered vehicles are known in the prior art. These pressure tanks have a wall that includes an internal liner, for example made of thermoplastic, for sealing purposes, and a reinforcing layer made of fiber-reinforced plastic to create mechanical stability.
- the reinforcing layer is preferably wound and designed as a CFRP layer.
- CFRP stands for carbon fiber reinforced plastic.
- the boss has a through hole and a connecting thread. At least one of the two bosses has a tank fitting connected to it when installed in the vehicle, which makes it possible to fill the pressure tank or remove gas in a controlled manner. On the other boss, the passage opening is sealed with a closure or a safety valve is provided there.
- Fuel tank modules that are mounted vertically in the vehicle are also known in the prior art, as shown, for example, in document US 2019/0255941 A1.
- the individual tanks are attached with a fastening device that engages the boss at the top and bottom.
- the box shown in which the individual tanks are attached requires additional installation space and increases the weight, so that for a given tank volume, the space for superstructures and the payload of the commercial vehicle becomes smaller.
- fuel tank modules are known from DE 202007015487 U1, in which the individual tanks at the two ends of the cylindrical middle part are each clamped to a support structure with a tension band as a fastening device.
- a tension band wraps around two fuel tanks.
- the tank module is attached to the vehicle frame via the support structure.
- There is one at one end of the tank Fitting is provided through which the tanks are filled and emptied.
- the fastening devices shown here are not stable and rigid enough to reliably fasten large, long individual tanks such as those required in commercial vehicles.
- the object of the invention is now to provide an improved fuel tank module which reliably carries the individual tanks and is designed to save weight and space, so that it is particularly suitable for commercial vehicles with high tank volumes.
- a secure and yet space- and weight-saving attachment is essential.
- the fuel tank module according to claim 1 is characterized in that the support structure comprises at least two longitudinal supports, which are each arranged in the space between two of the individual tanks, with two of the individual tanks each having at least one on each of the longitudinal supports
- Fastening device are attached, and at least one
- Connecting device is present, which connects one of the individual tanks, which is attached to the one longitudinal support, with one of the individual tanks, which is attached to the second longitudinal support, in which the connecting device wraps around these two individual tanks at least partially on their circumference.
- the advantage of such an embodiment according to the invention is that the rigidity of the individual tanks themselves is used to make the entire fuel tank module more stable.
- the rigidity of the individual tanks results from the reinforcing layer made of fiber-reinforced plastic.
- the rigidity is particularly high, especially when using CFRP.
- the supporting structure can therefore be made slimmer, smaller and lighter.
- the connecting device ensures that the two pairs of individual tanks, each of which is attached to a longitudinal support of the support structure, cannot swing against each other.
- the design according to the invention increases the natural frequency for the mode shapes at which the individual tank pairs move or twist against each other. This is only possible by increasing the rigidity without increasing the weight. Which would inevitably be the case with a stiffer design of the supporting structure or other reinforcements.
- the connecting device has no connection to the support structure, it only connects the two individual tanks to be connected to one another.
- the forces between the pairs of individual tanks are therefore absorbed solely by the connecting device and the individual tanks and the support structure is not subjected to any additional load. It can be made smaller and lighter. And in addition, this means that the support structure can be lower and the connecting device can still be arranged at the opposite end of the individual tanks.
- the connecting device is preferably designed in such a way that it is elastic or displaceable in the direction of the longitudinal direction (t) and is rigid perpendicular to the longitudinal direction (t), and thus allows a relative movement along the longitudinal direction (t) between the two connected individual tanks.
- a significant advantage of this design is that it allows for different expansion or a certain displacement of the two individual tanks relative to one another in the longitudinal direction without the connecting device being subjected to too much strain and thus being damaged.
- Such expansion occurs primarily when there are pressure differences in the individual tank when the tank is once filled with up to 875 bar or is then loaded with a lower pressure when emptied.
- Such individual tanks for commercial vehicles can be 2500 mm long and over 500 mm in diameter. The expansion is then several millimeters to a few centimeters in the longitudinal direction. Such sizes are not known for individual tanks for passenger vehicles; they are usually only approx. 1000 mm long.
- elastic means that an elastic movement is permitted by the connecting device executing a controlled elastic deformation.
- stiff is that the connecting element is designed in such a way that it allows virtually no movement or deformation in this direction under the usual load.
- the connecting device has two ropes which are arranged crosswise between the two connected individual tanks.
- Ropes are understood here to mean that they are suitable for essentially only absorbing tensile forces.
- the ropes can also be designed as a band.
- the crossed arrangement of the two cables prevents or at least dampens vibration of the individual tank pairs against each other.
- the ropes can also be made from an elastic material.
- the connecting device is equipped with two tension straps, each of which wraps around one of the individual tanks.
- the two individual tanks are held together by the two tension straps of the connecting device.
- the tension straps can be designed, for example, as simple clamps or as so-called hinge strap clamps, both in the connecting device and in the fastening devices.
- the connecting device comprises a connecting console which is arranged between the two connected individual tanks.
- this connecting console can hold the two tension straps together.
- the connecting console is preferably made of rubber or elastomer or metal and rubber. This not only enables an elastic movement in the longitudinal direction t of the individual tanks relative to one another, but there is also a certain damping of vibrations of the individual tanks relative to one another. Due to the damping effect, any vibration that may have been excited is reduced in its amplitude so that a critical condition and no damage occurs.
- the connecting console can be made of rubber, for example, and have metal strips on the side that protect it against wear on the contact surface with the individual tanks.
- connection console consists of two separate parts. For example, assembly can be simplified.
- the support structure is particularly preferably designed such that it has a lower height h than the length T of the individual tanks, in particular that the height h is between 50% and 70% of the length T of the individual tanks.
- the connecting device is arranged in the tank's longitudinal direction t between the end of the support structure and the boss facing away from the support structure. For example, in a version with a vertical arrangement of the individual tanks, this is the upper boss.
- the connecting device is arranged closer to the end of the cylindrical part of the connected individual tanks than the respective fastening device.
- the rigidity of the fuel tank module is increased despite the relatively low support structure by arranging the connecting device at the end of the individual tanks facing away from the support structure.
- the fuel tank module can be further improved if the support structure includes two cross braces connecting the longitudinal supports and if the support structure includes a floor brace that connects the cross braces and the longitudinal supports. This allows the supporting structure to become stiffer and be made even lower and lighter.
- FIG.1 Schematic representation of a vehicle with a fuel tank module according to the invention (side view)
- Fig.2a Representation of a fuel tank module according to the invention
- the fuel tank module 20 is designed so that the four individual tanks 1.1, 1.2, 1.3, 1.4 can be mounted vertically behind the driver's cab. This means that the installation space is well utilized and the individual tanks and their fittings are well protected from damage.
- the individual tanks 1.1, 1.2, 1.3, 1.4 have an elongated shape with a longitudinal axis (t), which is cylindrical in the middle area and closed at both ends with curved pole caps, the individual tanks 1.1, 1.2, 1.3, 1.4 having a reinforcing layer made of fiber-reinforced plastic , preferably made of CFRP, and on each of the pole caps a metal connection piece, a so-called Boss 2.3, include.
- the individual tanks 1.1, 1.2, 1.3, 1.4 are each fastened to the support structure 10 with the two fastening devices 4.5, which enclose the individual tanks 1.1,1.2,1.3,1.4 with tension straps.
- the two longitudinal supports of the supporting structure to which two of the individual tanks 1.1, 1.2, 1.3, 1.4 are attached.
- the connecting device that connects two of the individual tanks, here the two middle individual tanks 1.2, 1.3, to one another.
- Fig.2a the fuel tank module 20 according to the invention is shown and in Fig.2b the support structure 10 alone is shown in detail.
- the fuel tank module 20 is designed for vertical mounting of the individual tanks in the vehicle.
- the fuel tank module 20 here comprises exactly four individual tanks 1.1,1.2,1.3,1.4. Two individual tanks are each mounted on one of the longitudinal supports of the support structure 10, each with two - here an upper and a lower - fastening device. The individual tanks 1.1, 1.2 are attached to the longitudinal support 11 and the individual tanks 1.3, 1.4 are attached to the longitudinal support 12. Each of the individual tanks is fastened with a fastening device 4 in the lower region of the cylindrical part of the individual tank and with a fastening device 5 in the middle region of the cylindrical part of the individual tank. All fastening devices 4.5 are designed here with tension straps that surround the individual tanks on the circumference. The tension straps here are designed as simple clamps with a tension lock. The lower fastening device 4 could alternatively be designed so that it holds the individual tank on the lower boss 3.
- the support structure 10 is provided with cross struts 13, 14, so that a box-like structure is created that can accommodate the weight of the individual tanks.
- a floor strut 15 which is also used to attach it to the vehicle. Since the longitudinal supports 11, 12 are each arranged in the space between two individual tanks, the support structure can be made very narrow and light.
- the longitudinal supports 11, 12 point Fastening options for the fastening devices 4.5, such as the fastening options 12a, 12b shown.
- the support structure 10 would also have to have a folded strut on the upper edge, like on the floor, so that the box structure cannot deform into a parallelogram or similar.
- the chosen box structure is relatively slim and high, and therefore particularly susceptible to such deformations.
- bracing on the upper edge is only possible if the support structure projects upwards beyond the individual tanks, as is known in the prior art. This would make the supporting structure larger and heavier, which is disadvantageous.
- the support structure 10 can be made lower and lighter without stability or vibration problems occurring.
- the connecting device 6, which connects the two middle individual tanks 1, 2, 1, 3, uses the rigidity of the individual tanks to make the entire fuel tank module 20 more stable.
- the natural frequency of the modes, in which the two middle individual tanks 1.2, 1.3 move or twist relative to one another, is significantly increased so that they are no longer excited during normal operation.
- the connecting device 6 can be designed, as shown here, with two tension straps, each of which wraps around one of the individual tanks 1 .2, 1 .3, and with a connecting console that connects the tension straps.
- the connection console is preferably designed to be dampening.
- the tension straps are designed as clamps with a tension lock.
- Fig.3a shows a sectional view at height AA.
- the support structure 10 has the longitudinal supports 11, 12, to which two individual tanks are attached with the respective fastening device 5, and the cross struts 13, 14.
- the Fastening devices 5 can each be attached to the longitudinal support 11, 12 via a console.
- FIG.3b shows the top view.
- the connecting device 6 with the two tension straps 7.1, 7.2 and the connecting console 8 can be seen on the middle individual tanks 1.2, 1.3.
- the connecting console 8 is made in two parts and made of rubber, so that any vibrations that may occur can be optimally dampened.
- the connecting console can be provided with metal strips on the side in the contact area with the individual tanks.
- the connecting device 6, which is arranged closer to the upper boss 2 than the upper fastening devices 5, allows the rigidity of the fuel tank module 20 to be increased without the support structure having to be made higher and therefore heavier.
- FIG.4 an alternative embodiment to the variant shown in Fig.3b is shown.
- the connecting device 6 has two ropes 9.1, 9.2, which are stretched crosswise and thus diagonally between the two individual tanks 1.2, 1.3.
- the ropes 9.1, 9.2 are each attached to the support structure 10 at their ends.
- the ropes 9.1, 9.2 can be made of plastic or steel ropes, for example.
- the special arrangement of the ropes 9.1, 9.2 prevents the individual tanks 1.2, 1.3 from shifting or twisting relative to one another. This prevents unwanted vibrations.
- connection console 8 which holds the tension straps 7.1, 7.2 together and thus connects the individual tanks to one another.
- the connection console can be adjusted.
- the connection console 8 is made as a component made of plastic or rubber. Due to the hollow-shaped design, the connecting console 8 is so elastic in the longitudinal direction t of the individual tank that it allows the individual tanks to have different elongation in terms of their mobility. The material is also vibration-damping.
- the connecting webs between the two flanks are designed as two separate areas.
- connection console 8 consists of two separate parts 8a, 8b. These are also preferably made of plastic or rubber. And they are hollow-shaped.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102022106936.2A DE102022106936A1 (de) | 2022-03-24 | 2022-03-24 | Treibstofftank-Modul |
| PCT/EP2023/054635 WO2023180005A1 (de) | 2022-03-24 | 2023-02-24 | Treibstofftank-modul |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4500071A1 true EP4500071A1 (de) | 2025-02-05 |
Family
ID=85461606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23708430.6A Withdrawn EP4500071A1 (de) | 2022-03-24 | 2023-02-24 | Treibstofftank-modul |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4500071A1 (de) |
| DE (1) | DE102022106936A1 (de) |
| WO (1) | WO2023180005A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20240359554A1 (en) * | 2023-04-27 | 2024-10-31 | Faurecia Emissions Control Technologies, Usa, Llc | Tank mount system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060061081A1 (en) * | 2004-09-10 | 2006-03-23 | Kresse Alfred L Jr | Compressed gas tank carrier assembly |
| DE202007015487U1 (de) | 2007-11-05 | 2009-03-26 | Otto Fuchs Kg | Tankmodul |
| WO2014081833A1 (en) | 2012-11-21 | 2014-05-30 | Trilogy Engineered Solutions | Methods and systems for compressed natural gas (cng) system |
| PL3672823T3 (pl) * | 2017-09-14 | 2024-01-03 | Agility Fuel Systems Llc | Systemy do monitorowania komponentów układu paliwa lotnego |
-
2022
- 2022-03-24 DE DE102022106936.2A patent/DE102022106936A1/de active Pending
-
2023
- 2023-02-24 EP EP23708430.6A patent/EP4500071A1/de not_active Withdrawn
- 2023-02-24 WO PCT/EP2023/054635 patent/WO2023180005A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023180005A1 (de) | 2023-09-28 |
| DE102022106936A1 (de) | 2023-09-28 |
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