MULTIPLE ELEMENT GAS CONTAINER

The gas container uses fiber-reinforced composite profiles to address vibration and shock issues, enhancing reliability and reducing weight and costs by damping loads and converting kinetic energy.

DE102024138692A1Pending Publication Date: 2026-06-18RHEINMETALL INVENT GMBH
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Patent Information

Authority / Receiving Office
DE · DE
Patent Type
Applications
Current Assignee / Owner
RHEINMETALL INVENT GMBH
Filing Date
2024-12-18
Publication Date
2026-06-18

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Abstract

Multiple Element Gas Container (5A, 5B, 5C, 5D, 5E, 5F) for transporting a gas, in particular gaseous hydrogen, comprising several pressurized gas storage tanks (6, 7, 8, 9), in particular type IV hydrogen pressure tanks, for pressurized storage of the gas, and a frame structure (14) which supports the pressurized gas storage tanks (6, 7, 8, 9), wherein the frame structure (14) comprises fiber composite profiles (20, 21) to which the pressurized gas storage tanks (6, 7, 8, 9) are coupled, wherein the fiber composite profiles (20, 21) each comprise a profile core (35) and a profile covering (36) enclosing the profile core (35), wherein the profile covering (36) has a greater stiffness than the profile core (35), and wherein the pressurized gas storage tanks (6, 7, 8, 9) 7, 8, 9) are coupled to the fiber composite profiles (20, 21) in such a way that vibration and / or shock loading of the Multiple Element Gas Container (5A, 5B, 5C, 5D, 5E,5F) induces a bending stress in the fiber composite profiles (20, 21).
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Description

[0001] The present invention relates to a multiple element gas container for transporting a gas, in particular gaseous hydrogen.

[0002] Multiple Element Gas Containers (MEGCs) can be used to operate and establish a hydrogen infrastructure for mobile applications, particularly for fuel cell buses, passenger cars, rail vehicles, watercraft, and the like, as well as for industrial applications over distances of up to approximately 350 km for transporting gaseous hydrogen. These MEGCs are typically available in 20- or 40-foot sizes and comprise a frame structure that supports multiple pressurized gas storage tanks. The transport of such MEGCs is permitted by road (ADR), rail (RID), and inland waterway (ADN). Type IV hydrogen pressure tanks are particularly suitable as pressurized gas storage tanks.

[0003] Metallic connecting elements, support elements, and / or profile structures can be used to construct the frame of such a multiple element gas container. These often do not sufficiently dampen vibration and / or shock loads, such as those encountered when driving over a pothole or in a crash. As a result, depending on the tank mounting, the load is absorbed either by a belly-mount clamp in the case of a so-called belly mount or by a highly sensitive boss liner interface of the pressurized gas storage tank, particularly in the case of a so-called neck mount. Such loads can act in one direction of travel, against the direction of travel, perpendicular to the direction of travel, or vertically across the multiple element gas container.

[0004] With the aforementioned belly mounting, vibration and / or shock loads can, in the medium term, cause the compressed gas storage tanks to slip within the belly mount clamps, which can lead to the compressed gas storage tanks becoming suddenly detached under strong impacts. This can be problematic for both horizontal and vertical arrangements of the compressed gas storage tanks.

[0005] In the aforementioned neck-mounting configuration, vibration and / or shock loads can be absorbed by the respective compressed gas storage tank via a fixed bearing on one of its two bosses. This applies to both horizontal and vertical configurations of the compressed gas storage tanks. In this case, either the highly sensitive boss-liner interface may be subjected to additional stress, or a stiffening fiber-reinforced composite layer must absorb the additional load. In the latter case, an over-dimensioned fiber-reinforced composite layer is required, which can result in high costs, increased weight, and a reduced payload for the entire multiple element gas container.

[0006] Against this background, one object of the present invention is to provide an improved multiple element gas container.

[0007] Accordingly, a multiple element gas container for transporting a gas, in particular gaseous hydrogen, is proposed. The multiple element gas container comprises several pressurized gas storage tanks, in particular type IV hydrogen pressure tanks, for pressurized storage of the gas and a frame structure supporting the pressurized gas storage tanks. The frame structure has fiber composite profiles to which the pressurized gas storage tanks are coupled. Each fiber composite profile has a profile core and a profile covering enclosing the profile core, the profile covering having a greater stiffness than the profile core. The pressurized gas storage tanks are coupled to the fiber composite profiles in such a way that vibration and / or shock loading of the multiple element gas container induces a bending load in the fiber composite profiles.

[0008] By inducing bending stress in the fiber-reinforced composite profiles, vibration and / or shock loads on the Multiple Element Gas Container can be dampened. This reduces stress on safety-relevant components of the Multiple Element Gas Container, such as the pressurized gas storage tanks, and improves the container's operational reliability. Furthermore, the use of fiber-reinforced composite profiles can reduce the container's tare weight. This reduces the overall load on the container's structure and lowers transportation costs due to reduced energy consumption.

[0009] The Multiple Element Gas Container can be transported by any type of vehicle, such as a commercial vehicle, a rail vehicle, a watercraft, or an aircraft. In this context, the term "Multiple Element Gas Container" specifically means that the container is composed of numerous individual pressurized gas storage tanks. Each pressurized gas storage tank constitutes one "element" of the Multiple Element Gas Container. The Multiple Element Gas Container can also be referred to as a multi-element gas holder, multi-element gas tank, or multi-element gas container. These terms are used interchangeably.

[0010] The compressed gas storage tanks can also be referred to as compressed gas storage containers. The term "compressed gas storage tank" in this context means that the gas, particularly hydrogen, can be stored in its gaseous state under pressure within the compressed gas storage tanks. For example, the gas within the compressed gas storage tanks can be pressurized to between 350 and 700 bar. Liquefaction of the gas is specifically not intended in this case. The gas can be introduced or injected into the compressed gas storage tanks in gaseous form. The Multiple Element Gas Container can contain any number of compressed gas storage tanks. For example, the Multiple Element Gas Container can comprise eighty such compressed gas storage tanks.

[0011] The pressurized gas storage tanks are primarily so-called Type IV hydrogen pressure tanks. These Type IV hydrogen pressure tanks comprise a tank body with metallic bosses at each end. The tank body includes a fiber-reinforced composite shell with an inner plastic liner. The fiber-reinforced composite shell can be manufactured from a carbon fiber-reinforced fiber-reinforced plastic composite using a winding process.

[0012] The multiple element gas container is preferably associated with a coordinate system comprising a first spatial direction (x-direction or longitudinal direction), a second spatial direction (y-direction or transverse direction), and a third spatial direction (z-direction or vertical direction). The longitudinal, transverse, and vertical directions are oriented perpendicular to each other. The vertical direction may be oriented opposite to a direction of gravity. The symmetry or central axes of the hydrogen pressure tanks may be oriented parallel to the longitudinal direction, parallel to the transverse direction, or parallel to the vertical direction.

[0013] The fact that the frame structure "supports" the compressed gas storage tanks means, in this case, in particular, that the frame structure supports the weight of the compressed gas storage tanks themselves as well as the weight of the gas stored in them. The frame structure preferably comprises a metallic frame constructed from metal profiles. These metal profiles can, for example, be bolted, riveted, and / or welded together.

[0014] In addition to the frame, the frame structure incorporates fiber-reinforced composite profiles. These profiles connect the compressed gas storage tanks to the frame. In other words, the compressed gas storage tanks are not directly connected to the frame, but rather to the fiber-reinforced composite profiles, which are in turn connected to the frame to form the frame structure. The frame structure is preferably truss-like or skeletal. The frame structure encloses the compressed gas storage tanks. In other words, the compressed gas storage tanks are located within the frame structure. The compressed gas storage tanks are suspended from the frame structure by means of the fiber-reinforced composite profiles.

[0015] Preferably, the profile encapsulation completely surrounds the profile core. In other words, the profile core is completely enclosed by the profile encapsulation. However, this does not preclude the possibility that the profile core may be exposed at cut edges of the fiber-reinforced composite profile. Different stiffnesses between the profile core and the profile encapsulation can be achieved, for example, by making the profile core and the profile encapsulation from different materials, such as glass fibers and carbon fibers. However, different stiffnesses can also be achieved through different fiber orientations. In this case, the profile core and the profile encapsulation can be made from the same material.

[0016] In this context, "stiffness" can be understood generally as the resistance of a component, in this case the profile core or the profile cladding, to elastic deformation imposed by an external load. Stiffness represents the relationship between the load on the component and its deformation. Stiffness is determined by the component's material and its geometry. For example, materials with different stiffnesses, such as glass fibers or carbon fibers, can be used for the profile core and the profile cladding. Alternatively or additionally, as mentioned previously, different fiber orientations can be used in the profile core and the profile cladding. Different stiffnesses can be achieved through these different fiber orientations.

[0017] The term "fiber-reinforced composite profile" in this context means, in particular, that the fiber-reinforced composite profiles are made of a fiber-reinforced composite material. This composite material may comprise fibers, especially rovings, non-woven fabrics, and / or woven fabrics, such as glass fibers, carbon fibers, boron fibers, aramid fibers, or the like, as well as a matrix, which in particular includes a plastic material, such as a thermoplastic or a thermosetting plastic. However, this does not preclude the fiber-reinforced composite profiles from also containing metallic materials, such as inserts.

[0018] The statement that vibration and / or impact loads "induce" bending stress in the fiber-reinforced composite profiles means, in particular, that the fiber-reinforced composite profiles are deformed from an undeformed state to a deformed state by the application of external forces resulting from the vibration and / or impact loads. When these external forces cease, the fiber-reinforced composite profiles deform back from the deformed state to the undeformed state on their own.

[0019] The differing stiffnesses of the profile core and the profile cladding promote dissipation, thereby dampening vibrations and shocks. In particular, the bending stress in fiber-reinforced composite profiles results from vibration and / or shock loading. During bending, kinetic energy can be converted into deformation energy.

[0020] Preferably, each compressed gas storage tank is coupled to a fiber composite profile by means of a fixed bearing and a floating bearing. The fixed bearing and the floating bearing are each connected to the respective fiber composite profiles in such a way that only bending or bending loads of the fiber composite profiles are induced under vibration and / or shock loads.

[0021] According to one embodiment, the profile core has glass fibers, while the profile covering has carbon fibers.

[0022] In this case, carbon fibers exhibit higher material stiffness than glass fibers. However, any other fiber materials can also be used. As mentioned previously, the profile core and the profile covering can also be made of the same material. In this case, for example, different fiber orientations can be chosen in the profile core and the profile covering to achieve the different stiffnesses.

[0023] According to another embodiment, the profile core and / or the profile covering comprise rovings, multiaxial and / or unidirectional fiber fabrics and / or fiber woven fabrics.

[0024] In this context, a "roving" refers to a bundle, strand, or multifilament yarn made of parallel filaments or continuous fibers. For example, such a roving can be made of glass fibers or carbon fibers.

[0025] According to another embodiment, the fiber composite profiles are pultruded profiles.

[0026] This means, in particular, that the fiber-reinforced composite profiles are manufactured using a pultrusion process. Alternatively, the fiber-reinforced composite profiles can also be manufactured using other methods. Examples of alternative manufacturing methods include hand lay-up, compression molding, or resin transfer molding. However, pultruded fiber-reinforced composite profiles are particularly preferred. Accordingly, the terms "fiber-reinforced composite profile" and "pultruded profile" can be used interchangeably throughout this document.

[0027] According to another embodiment, the Multiple Element Gas Container has a longitudinal direction, a transverse direction and a vertical direction, wherein the longitudinal direction, the transverse direction and the vertical direction are oriented perpendicular to each other, and wherein a respective central axis of the pressurized gas storage tanks is oriented along the longitudinal direction, along the transverse direction or along the vertical direction.

[0028] Preferably, all pressurized gas storage tanks of the multiple element gas container are arranged such that their central axes are oriented either along the longitudinal direction, the transverse direction, or the vertical direction. The pressurized gas storage tanks can be arranged in a row or nested within one another.

[0029] According to another embodiment, each pressurized gas storage tank is coupled to a first fiber composite profile by means of a fixed bearing and to a second fiber composite profile by means of a floating bearing, or vice versa.

[0030] Along the aforementioned direction of gravity, the fixed bearings of the compressed gas storage tanks can, for example, be arranged above the floating bearings. However, a reverse arrangement is also possible. The floating bearings allow for length compensation along the respective central axis of the compressed gas storage tank assigned to the floating bearing. The fixed bearings preferably do not allow such length compensation.

[0031] According to another embodiment, the fixed bearing is arranged above or below the floating bearing when viewed along a direction of gravity.

[0032] In particular, the fixed bearing is arranged above or below the floating bearing when viewed along the vertical direction. In the case of a horizontal arrangement of the compressed gas storage tanks, that is, if the central axes of the compressed gas storage tanks run along the longitudinal or transverse direction, the respective fixed bearing and the respective floating bearing are preferably placed at the same height when viewed along the vertical direction.

[0033] According to a further embodiment, the first fiber composite profile has a breakthrough through which a boss of the respective compressed gas storage tank is at least partially passed and connected to the first fiber composite profile to form the fixed bearing.

[0034] Preferably, the boss is screwed to the fiber composite profile. However, other connection options are also possible.

[0035] According to a further embodiment, the first fiber composite profile has a U-shaped profile cross-section with a first leg section, a second leg section and a web section connecting the first leg section with the second leg section, wherein the opening penetrates the web section.

[0036] Alternatively, the first fiber-reinforced composite profile can have any desired cross-sectional shape. For example, both fiber-reinforced composite profiles can each have a C-shaped, I-shaped, L-shaped, O-shaped, or rectangular cross-sectional shape. The two fiber-reinforced composite profiles can have the same cross-sectional shapes or different cross-sectional shapes.

[0037] According to a further embodiment, the first fiber composite profile is arranged such that the boss is arranged at least section by section between the first leg section and the second leg section, wherein the first leg section and the second leg section point away from the pressurized gas storage tanks.

[0038] The U-shaped geometry of the first fiber composite profile is accordingly arranged in such a way that it is open in a direction away from the pressurized gas storage tank.

[0039] According to another embodiment, the loose bearing has a bearing element that is connected to the second fiber composite profile.

[0040] The floating bearing can alternatively be connected to the first fiber-reinforced composite profile. In this case, the fixed bearing is provided on the second fiber-reinforced composite profile. The floating bearing preferably comprises one of the bosses of the respective compressed gas storage tank, to which a spherical bearing ring is attached. The spherical bearing ring can slide on a cylindrical outer surface of the respective boss to compensate for length differences along the central axis of the respective compressed gas storage tank. This bearing ring is preferably located between a first bearing element and a second bearing element, which are connected to the second fiber-reinforced composite profile or to the first fiber-reinforced composite profile. The bearing elements are spherically shaped to correspond to the bearing ring, so that an angular misalignment can be compensated for by allowing the respective boss, together with the bearing ring, to tilt relative to the two bearing elements.

[0041] According to a further embodiment, the second fiber composite profile has a U-shaped profile cross-section with a first leg section, a second leg section and a web section connecting the first leg section to the second leg section, wherein the bearing element is connected to the first leg section or to the second leg section.

[0042] As mentioned previously, the second fiber-reinforced composite profile can also have any cross-sectional area. Holes or openings can be provided in the first leg section or the second leg section, by means of which the aforementioned bearing element(s) can be screwed to the second fiber-reinforced composite profile or to the first fiber-reinforced composite profile.

[0043] According to another embodiment, the second fiber composite profile is arranged such that the first leg section and the second leg section point away from the compressed gas storage tanks.

[0044] In this case, too, the U-shaped geometry of the second fiber composite profile is arranged in such a way that it is open away from the pressurized gas storage tanks.

[0045] According to another embodiment, the frame structure has a frame made of metal profiles, wherein the frame supports the fiber composite profiles.

[0046] As mentioned previously, the metal profiles can be welded, riveted, and / or bolted together. The fiber-reinforced composite profiles are preferably bolted to the metal profiles. The fiber-reinforced composite profiles and the frame together form the frame structure.

[0047] Furthermore, a multiple element gas container for transporting a gas, in particular gaseous hydrogen, is proposed. The multiple element gas container comprises several pressurized gas storage tanks, in particular type IV hydrogen pressure tanks, for pressurized storage of the gas and a frame structure which supports the pressurized gas storage tanks, wherein damping plates are attached to the frame structure, each damping plate having a plate core and a plate covering enclosing the plate core, and wherein the plate covering has a greater stiffness than the plate core.

[0048] Additionally, the multiple element gas container can incorporate the aforementioned fiber-reinforced composite profiles. All previous embodiments concerning the multiple element gas container with the fiber-reinforced composite profiles are applicable accordingly to the multiple element gas container with the damping plates, and vice versa. For example, the core and the outer layer of the plates are made of different materials. For example, the core can be made of a glass fiber-reinforced composite and the outer layer of a carbon fiber-reinforced composite. Alternatively, the different stiffnesses can also be achieved by different fiber orientations. The core and the outer layer of the plates preferably form a sandwich structure, with the core being arranged between two outer layers. The core can be exposed at the cut edges of the damping plates.

[0049] The term "one" here is not necessarily to be understood as restricting the number to exactly one element. Rather, it can also refer to multiple elements, such as two, three, or more. Similarly, every other numerical term used here should not be interpreted as restricting the number to the exact number stated. Instead, numerical deviations, both higher and lower, are possible unless otherwise indicated.

[0050] Other possible implementations of the Multiple Element Gas Container also include combinations of features or embodiments described previously or subsequently with regard to the exemplary embodiments, even if not explicitly mentioned. In such cases, the person skilled in the art will also add individual aspects as improvements or additions to the respective basic form of the Multiple Element Gas Container.

[0051] Further advantageous embodiments and aspects of the Multiple Element Gas Container are the subject of the dependent claims and the exemplary embodiments of the Multiple Element Gas Container described below. The Multiple Element Gas Container is further explained below with reference to preferred embodiments and the accompanying figures. Fig. Figure 1 shows a schematic side view of an embodiment of a commercial vehicle; Fig. Figure 2 shows a schematic sectional view of the commercial vehicle along section line II-II of the Fig. 1; Fig. Figure 3 shows a schematic top view of the commercial vehicle according to Fig. 1; Fig. Figure 4 shows another schematic top view of the commercial vehicle according to Fig. 1; Fig. Figure 5 shows another schematic side view of the commercial vehicle according to Fig. 1; Fig. Figure 6 shows a schematic sectional view of the commercial vehicle along section line VI-VI. Fig. 5; Fig. Figure 7 shows another schematic side view of the commercial vehicle according to Fig. 1; Fig. Figure 8 shows another schematic side view of the commercial vehicle according to Fig. 1; Fig. Figure 9 shows a schematic sectional view of the commercial vehicle along section line IX-IX of the Fig. 8; Fig. Figure 10 shows another schematic sectional view of the commercial vehicle along section line IX-IX of the Fig. 8; Fig. Figure 11 shows a schematic view of an embodiment of a pressurized gas storage tank arrangement; Fig. Figure 12 shows a schematic sectional view of an embodiment of a fiber composite profile support for the compressed gas storage tank arrangement according to section line XII-XII of the Fig. 11; Fig. Figure 13 shows another schematic view of the compressed gas storage tank arrangement according to Fig. 11; Fig. Figure 14 shows a schematic perspective exploded view of an embodiment of a loose bearing for the compressed gas storage tank arrangement according to Fig. 11; Fig. Figure 15 shows a schematic sectional view of an embodiment of a fixed bearing for the compressed gas storage tank arrangement according to Fig. 11; Fig. Figure 16 shows a schematic detailed sectional view of an embodiment of a frame structure; Fig. Figure 17 shows a schematic perspective detail view of the frame structure according to Fig. 16; Fig. Figure 18 shows another schematic side view of the commercial vehicle according to Fig. 1; Fig. Figure 19 shows a schematic sectional view of the commercial vehicle along section line XIX-XIX of the Fig. 18; Fig. Figure 20 shows a schematic sectional view of the commercial vehicle along section line XX-XX. Fig. 18; Fig. 21 shows the detailed view XXI according to the Fig. 19; and Fig. Figure 22 shows a sectional view of an embodiment of a damping plate according to section line XXII-XXII of the Fig. 21.

[0052] In the figures, identical or functionally equivalent elements have been given the same reference symbols, unless otherwise indicated.

[0053] The Fig. Figure 1 shows a schematic side view of an embodiment of a commercial vehicle 1. The Fig. Figure 2 shows a schematic sectional view of the commercial vehicle 1 according to section line II-II of the Fig. 1. The Fig. Figure 3 shows a schematic top view of the commercial vehicle 1. The following refers to the Fig. 1, Fig. 2 to Fig. 3 referenced simultaneously.

[0054] The commercial vehicle 1 comprises a tractor unit 2 and a semi-trailer 3 coupled to the tractor unit 2. The commercial vehicle 1 can move along a direction of travel 4. The direction of travel 4 is in the Fig. The direction of travel 4 is oriented from right to left. However, the direction of travel 4 can also be reversed. The commercial vehicle 1, in particular the semi-trailer 3, carries a Multiple Element Gas Container 5A (MEGC) for transporting a gas, especially gaseous hydrogen. Preferably, the semi-trailer carries exactly one such Multiple Element Gas Container 5A.

[0055] The Multiple Element Gas Container 5A comprises a variety of pressurized gas storage tanks 6, 7, 8, 9, of which in the Fig. 1, Fig. 2 to Fig. Only four of the three are marked with a reference symbol. The number of compressed gas storage tanks 6, 7, 8, 9 is arbitrary. For example, the Multiple Element Gas Container 5A comprises eighty such compressed gas storage tanks 6, 7, 8, 9. Each compressed gas storage tank 6, 7, 8, 9 is assigned a symmetry or central axis 10, 11, 12, 13, with respect to which the respective compressed gas storage tank 6, 7, 8, 9 can be constructed in a substantially rotationally symmetrical manner.

[0056] The term "Multiple Element Gas Container" means that the Multiple Element Gas Container 5A is composed of a multitude of individual pressurized gas storage tanks 6, 7, 8, 9. Specifically, each pressurized gas storage tank 6, 7, 8, 9 forms an "element" of the Multiple Element Gas Container 5A. The Multiple Element Gas Container 5A can also be referred to as a multiple element gas container, multiple element gas tank, or multiple element gas container.

[0057] The pressurized gas storage tanks 6, 7, 8, 9 can also be referred to as pressurized gas storage containers. In this context, the term "pressurized gas storage tank" means that the gas, in particular hydrogen, can be stored in its gaseous state under pressure in the pressurized gas storage tanks 6, 7, 8, 9. For example, the gas within the pressurized gas storage tanks 6, 7, 8, 9 can be pressurized to between 350 and 700 bar. Liquefaction of the gas is not intended in this case. The gas can be introduced or injected into the pressurized gas storage tanks 6, 7, 8, 9 in gaseous form.

[0058] These Multiple Element Gas Containers 5A are used for operating and setting up a hydrogen infrastructure for mobile applications, particularly for fuel cell buses, passenger cars, rail vehicles, watercraft, or the like, as well as for industrial applications over distances of up to approximately 350 km for transporting gaseous hydrogen. These Multiple Element Gas Containers 5A are typically available in 20- or 40-foot sizes and comprise a frame structure 14, a variety of the previously mentioned pressurized gas storage tanks 6, 7, 8, 9, a valve and piping system, a cabinet, including a pneumatic control cabinet, and various fastening and exterior elements. The transport routes for the Multiple Element Gas Containers 5A include road (ADR), rail (RID), and inland waterways (ADN).

[0059] The framework structure 14 is in the Fig. Figure 3 shows the top open, so that the pressurized gas storage tanks 6, 7, 8, 9 are visible. However, the frame structure 14 can be completely closed. This does not preclude the frame structure from being truss-like or skeletal. In particular, the frame structure 14 can be clad with sheets or panels.

[0060] The pressurized gas storage tanks 6, 7, 8, and 9 are, in particular, so-called Type IV hydrogen pressure tanks. Such Type IV hydrogen pressure tanks comprise a tank body with metallic bosses at each end. The tank body includes a fiber-reinforced composite shell with an inner plastic liner. The fiber-reinforced composite shell can be manufactured from a carbon fiber-reinforced fiber-reinforced plastic composite using a winding process.

[0061] The Multiple Element Gas Container 5A is assigned a coordinate system with a first spatial direction, x-direction or longitudinal direction x, a second spatial direction, y-direction or transverse direction y, and a third spatial direction, z-direction or vertical direction z. The longitudinal direction x, the transverse direction y, and the vertical direction z are oriented perpendicular to each other. The direction of travel 4 can be oriented opposite to the longitudinal direction x. However, this does not preclude the direction of travel 4 from also being oriented along the longitudinal direction x. The pressurized gas storage tanks 6, 7, 8, 9 are arranged such that their central axes 10, 11, 12, 13 run along or parallel to the vertical direction z.

[0062] In addition to the compressed gas storage tanks 6, 7, 8, 9, the Multiple Element Gas Container includes a frame structure 14, as previously mentioned, which supports the compressed gas storage tanks 6, 7, 8, 9. This means that the frame structure 14 supports the weight of the compressed gas storage tanks 6, 7, 8, 9 as well as the weight of the gas contained within them. The frame structure 14 is truss-like or skeletal in design. The frame structure 14 encloses the compressed gas storage tanks 6, 7, 8, 9. In other words, the compressed gas storage tanks 6, 7, 8, 9 are located within the frame structure 14.

[0063] The frame structure 14 comprises a frame 15, which is constructed from interconnected metal profiles 16, 17, 18, 19, of which in the Fig. Only four of the metal profiles are identified with a reference numeral. The metal profiles 16, 17, 18, 19 can, for example, be screwed, riveted, and / or welded together to form the frame 15. The metal profiles 16, 17, 18, 19 can, for example, be aluminum or steel profiles. The frame 15 is thus made of a metallic material. The frame 15 encloses the compressed gas storage tanks 6, 7, 8, 9. In other words, the compressed gas storage tanks 6, 7, 8, 9 are located within the frame 15.

[0064] The frame structure 14 has, in addition to the frame 15, fiber composite profiles 20, 21, of which in the Fig. Only one of the three components is marked with a reference symbol, to which the compressed gas storage tanks 6, 7, 8, 9 are connected. The compressed gas storage tanks 6, 7, 8, 9 are therefore not directly connected to the metallic frame 15. This means, in particular, that the compressed gas storage tanks 6, 7, 8, 9 are connected to the fiber composite profiles 20, 21, which in turn are connected to the frames 15 to form the frame structure 14 together with the frame 15.

[0065] The pressurized gas storage tanks 6, 7, 8, 9 are coupled to the fiber-reinforced composite profiles 20, 21 in such a way that a vibration and / or shock load on the Multiple Element Gas Container 5A induces a bending load on the respective fiber-reinforced composite profile 20, 21. This means that the fiber-reinforced composite profiles 20, 21 are elastically deformed. The fiber-reinforced composite profiles 20, 21 can be deformed from an undeformed state to a deformed state by applying external forces. When these external forces are removed, the fiber-reinforced composite profiles 20, 21 deform back from the deformed state to the undeformed state on their own. The fiber-reinforced composite profiles 20, 21 serve to dampen vibrations.

[0066] The Fig. Figure 4 shows another schematic top view of the commercial vehicle 1.

[0067] The commercial vehicle 1, in particular the semi-trailer 3, carries a further embodiment of a Multiple Element Gas Container 5B. The Multiple Element Gas Container 5B differs from the Multiple Element Gas Container 5A only in that, in the Multiple Element Gas Container 5B, the pressurized gas storage tanks 6, 7, 8, 9 are not arranged in a row, but are nested.

[0068] The Fig. Figure 5 shows another schematic side view of commercial vehicle 1. Fig. Figure 6 shows another schematic sectional view of the commercial vehicle 1 according to section line VI-VI of the Fig. 5.

[0069] The commercial vehicle 1, in particular the semi-trailer 3, carries a further embodiment of a Multiple Element Gas Container 5C. The Multiple Element Gas Container 5C differs from the Multiple Element Gas Container 5A only in that, in the Multiple Element Gas Container 5C, the pressurized gas storage tanks 6, 7, 8, 9 are arranged such that their central axes 10, 11, 12, 13 do not run parallel to the vertical direction z, but parallel to or coincide with the transverse direction y.

[0070] The Fig. Figure 7 shows another schematic side view of the commercial vehicle 1.

[0071] The commercial vehicle 1, in particular the semi-trailer 3, carries a further embodiment of a Multiple Element Gas Container 5D. The Multiple Element Gas Container 5D differs from the Multiple Element Gas Container 5C only in that the pressurized gas storage tanks 6, 7, 8, 9 are not arranged in a row, but are nested.

[0072] The Fig. Figure 8 shows another schematic side view of commercial vehicle 1. Fig. Figure 9 shows a schematic sectional view of the commercial vehicle along section line IX-IX of the Fig. 8.

[0073] The commercial vehicle 1, in particular the semi-trailer 3, carries a further embodiment of a Multiple Element Gas Container 5E. The Multiple Element Gas Container 5E differs from the Multiple Element Gas Container 5A only in that the pressurized gas storage tanks 6, 7, 8, 9 in the Multiple Element Gas Container 5E are arranged such that their central axes 10, 11, 12, 13 are not oriented along the vertical direction z, but along the longitudinal direction x or coincide with it.

[0074] The Fig. Figure 10 shows another schematic sectional view of the commercial vehicle 1.

[0075] The commercial vehicle 1, in particular the semi-trailer 3, carries a further embodiment of a Multiple Element Gas Container 5F. The Multiple Element Gas Container 5F differs from the Multiple Element Gas Container 5E only in that the pressurized gas storage tanks 6, 7, 8, 9 are not arranged in a row, but are nested.

[0076] The Fig. Figure 11 shows a schematic view of an embodiment of a pressurised gas storage tank arrangement 22.

[0077] The compressed gas storage tank assembly 22 can, in particular, be part of the Multiple Element Gas Container 5A. The Multiple Element Gas Container 5A comprises a plurality of such compressed gas storage tank assemblies 22. Only one compressed gas storage tank assembly 22 will be discussed below. However, the compressed gas storage tank assembly 22 can also be part of a Multiple Element Gas Container 5B, 5C, 5D, 5E, 5F as previously described. In the following, however, it is assumed that the compressed gas storage tank assembly 22 is part of the Multiple Element Gas Container 5A. All subsequent statements concerning the Multiple Element Gas Container 5A and the compressed gas storage tank assembly 22 are, however, also applicable to the other embodiments of the Multiple Element Gas Container 5B, 5C, 5D, 5E, 5F.

[0078] Frame 15 is in the Fig. Figure 11 is not shown. The compressed gas storage tank arrangement 22 comprises several compressed gas storage tanks 6, 7, 8 as previously described. The number of compressed gas storage tanks 6, 7, 8 is arbitrary. The following are shown only as examples: Fig. Figure 11 shows three such compressed gas storage tanks 6, 7, 8. Each compressed gas storage tank 6, 7, 8 is essentially rotationally symmetrical about its central axis 10, 11, 12. The central axes 10, 11, 12 run along the vertical direction z or are arranged parallel to it. The compressed gas storage tanks 6, 7, 8 are, in particular, identical in construction. In the Fig. Figure 11 shows a gravity direction g. The gravity direction g is oriented opposite to the vertical direction z. This means that the central axes 10, 11, 12 run along the gravity direction g.

[0079] As explained below using the example of the pressurized gas storage tank 6, each pressurized gas storage tank 6, 7, 8 comprises a tank body 23, which may have a fiber composite shell and an inner plastic liner. A first boss 24 and a second boss 25 are attached to the end of the tank body 23. The bosses 24, 25 are made of a metallic material, such as an aluminum alloy or a steel alloy. The tank body 23 encloses a receiving area or cavity in which the gas to be transported is held under pressure.

[0080] The bosses 24, 25 couple or connect the pressurized gas storage tanks 6, 7, 8 to the fiber composite profiles 20, 21 and thus to the frame structure 14 (not shown). Furthermore, the gas can be filled into and extracted from the respective pressurized gas storage tank 6, 7, 8 via the bosses 24, 25 or at least one of them. For this purpose, the bosses 24, 25 or at least one of them can have valves, pipes, channels, openings, or the like. Piping from the Multiple Element Gas Container 5A can be connected to the bosses 24, 25 or at least one of them to supply and / or extract the gas.

[0081] In addition to the compressed gas storage tanks 6, 7, 8, the compressed gas storage tank arrangement 22 comprises the aforementioned fiber-reinforced composite profiles 20, 21. Specifically, a lower or first fiber-reinforced composite profile 20 and an upper or second fiber-reinforced composite profile 21 are provided. Viewed along the direction of gravity g, the first fiber-reinforced composite profile 20 is positioned below the second fiber-reinforced composite profile 21. However, the arrangement can also be reversed, so that the first fiber-reinforced composite profile 20 is positioned above the second fiber-reinforced composite profile 21 when viewed along the direction of gravity g.

[0082] The compressed gas storage tank assembly 22 can have any number of such fiber composite profiles 20, 21. The fiber composite profiles 20, 21 are connected to the compressed gas storage tanks 6, 7, 8. The fiber composite profiles 20, 21 are in turn connected to the frame 15 (not shown) to form, together with the frame 15, the frame structure 14 (not shown) of the multiple element gas container 5A, which supports the compressed gas storage tanks 6, 7, 8. In other words, the compressed gas storage tank assembly 22 is coupled to the frame 15 by means of the fiber composite profiles 20, 21.

[0083] The pressurized gas storage tanks 6, 7, 8 are each connected to the first fiber-reinforced composite profile 20 by means of a fixed bearing 26, 27, 28 and to the second fiber-reinforced composite profile 21 by means of a floating bearing 29, 30, 31. This arrangement can also be reversed. In particular, this means that the pressurized gas storage tanks 6, 7, 8 can be connected to the second fiber-reinforced composite profile 21 by means of their fixed bearings 26, 27, 28, and then connected to the first fiber-reinforced composite profile 20 by means of their floating bearings 29, 30, 31. The first bosses 24 of the pressurized gas storage tanks 6, 7, 8 are part of the fixed bearings 26, 27, 28. The second bosses 25 of the pressurized gas storage tanks 6, 7, 8 are part of the loose bearings 29, 30, 31.

[0084] The Fig. Figure 12 shows a schematic sectional view of an embodiment of a first fiber composite profile 20 as previously described, according to section line XII-XII of the Fig. 11.

[0085] The fiber-reinforced composite profiles 20 and 21 can have an identical structure. However, this is not mandatory. In particular, the fiber-reinforced composite profiles 20 and 21 can have different cross-sectional geometries or profile cross-sections. The following discussion focuses solely on the first fiber-reinforced composite profile 20. However, all subsequent statements concerning the first fiber-reinforced composite profile 20 are also applicable to the second fiber-reinforced composite profile 21 and vice versa.

[0086] The first fiber-reinforced composite profile 20 is manufactured using a pultrusion process. Accordingly, the first fiber-reinforced composite profile 20 is specifically a pultruded profile. Therefore, the terms "fiber-reinforced composite profile" and "pultruded profile" can be used interchangeably throughout this text. However, alternative manufacturing approaches for producing the first fiber-reinforced composite profile 20 are possible. Examples of alternative manufacturing methods include hand lay-up, compression molding, and resin transfer molding. For the purposes of this text, however, it is assumed that the first fiber-reinforced composite profile 20 is manufactured using a pultrusion process.

[0087] The term "fiber composite profile" in this context means that the first fiber composite profile 20 is made of a fiber composite material. The fiber composite material may comprise fibers, in particular rovings, nonwoven fabrics and / or woven fabrics, for example, including glass fibers, carbon fibers, boron fibers, aramid fibers or the like, as well as a matrix, which in particular comprises a plastic material, for example, a thermoplastic or a thermosetting plastic. However, this does not preclude the first fiber composite profile 20 from also containing metallic materials, for example, so-called inserts.

[0088] In a pultrusion process, as previously mentioned, at least two reinforcing fibers with different material stiffnesses, such as carbon fibers and glass fibers, are combined to produce the first fiber-reinforced composite profile 20. Rovings, multiaxial and / or unidirectional fiber fabrics, and / or woven fibers can be used. The aim is the continuous production of a profile cross-section, such as a C-shaped, I-shaped, L-shaped, U-shaped, or O-shaped profile cross-section, in a sandwich construction, and the impregnation and consolidation of a resin, in particular an epoxy resin or a polyurethane resin.

[0089] During the integration of the first fiber-reinforced composite profile 20 into the Multiple Element Gas Container 5A, the design of the profile cross-section of the first fiber-reinforced composite profile 20 and the sandwich element, as well as its arrangement within the Multiple Element Gas Container 5A, induces a bending stress in the first fiber-reinforced composite profile 20 due to vibration and / or shock loads. This dampens the operational vibration and / or shock loads, thus reducing the stresses on safety-relevant components, such as the compressed gas storage tanks 6, 7, 8, the aforementioned piping, and / or valves, and improving operational reliability. Furthermore, the use of fiber-reinforced composites reduces the dead weight of the Multiple Element Gas Container 5A.This further reduces the overall mechanical stress on the structure of the Multiple Element Gas Container 5A and reduces transport costs during operation, particularly during transport, of the Multiple Element Gas Container 5A due to reduced energy requirements.

[0090] It is subsequently assumed that the first fiber-reinforced composite profile 20 has a U-shaped cross-section. As mentioned previously, however, the first fiber-reinforced composite profile 20 can also have a cross-section of any other shape. The first fiber-reinforced composite profile 20 has a first leg section 32, a second leg section 33, and a web section 34 connecting the first leg section 32 to the second leg section 33. The fixed bearings 26, 27, 28, for example, can be implemented on the web section 34. In the orientation of the Fig. 12 is the first fiber composite profile 20 open at the bottom.

[0091] The first fiber-reinforced composite profile 20 comprises a profile core 35 and a profile covering 36 enclosing the profile core 35. The profile covering 36 exhibits greater stiffness than the profile core 35. This can be achieved, for example, by the profile core 35 containing glass fibers, while the profile covering 36 contains carbon fibers. However, the different stiffnesses can also be achieved through different fiber orientations. In this case, the profile core 35 and the profile covering 36 can be made of the same material. The profile core 35 and / or the profile covering 36 can, in particular, comprise rovings, multiaxial and / or unidirectional fiber fabrics, and / or woven fiber structures.

[0092] In this context, "stiffness" can be understood generally as the resistance of a component, in this case the profile core 35 or the profile covering 36, to elastic deformation induced by an external load. Stiffness represents the relationship between the load on the component and its deformation. Stiffness is determined by the component's material and its geometry. For example, materials with different stiffnesses, such as glass fibers and carbon fibers, can be used for the profile core 35 and the profile covering 36.

[0093] To produce the first U-shaped fiber-reinforced composite profile 20 in a pultrusion process, three multiaxial fabric rolls, specifically with angles of 0°, +45°, -45°, and 90°, are processed. Two carbon fiber rolls, forming the profile outer layer 36, are located above and below a third, less rigid glass fiber roll, which forms the profile core 35. The three multiaxial fabrics are first aligned by means of several deflection rollers and then stacked on top of each other in a sandwich configuration.

[0094] Subsequently, further deflection and positioning rollers come into play, aligning the non-woven sandwich into a profile shape, particularly a U-shape, before it enters the mold. The mold entry is tapered, and the mold comprises two mold halves, which automatically centers the non-woven sandwich. Inlet channels distributed around the circumference of the mold impregnate the non-woven sandwich with a resin, particularly an epoxy resin, from a reservoir. The application of heat triggers a cross-linking reaction of the resin, which includes resin, hardener, and additives. A chain puller or gripper system after the mold pulls the finished profile in the production direction. Finally, the profiles are cut to the desired length and drilled and / or milled at the necessary locations to complete the first fiber-reinforced composite profile 20.

[0095] The Fig. Figure 13 shows another schematic view of the pressurized gas storage tank arrangement 22.

[0096] As the Fig. As shown in Figure 13, the second fiber composite profile 21 also has a first leg section 37, a second leg section 38, and a web section 39 connecting the first leg section 37 with the second leg section 38. The fixed bearing 26 of the pressurized gas storage tank 6 is attached to the first fiber composite profile 20, while the floating bearing 29 of the pressurized gas storage tank 6 is attached to the second fiber composite profile 21.

[0097] In particular, the fixed bearing 26 is mounted on the web section 34 of the first fiber composite profile 20. The floating bearing 29, on the other hand, is mounted on the second leg section 38 of the second fiber composite profile 21. However, the floating bearing 29 can also be mounted on the first leg section 37 of the second fiber composite profile 21.

[0098] The Fig. Figure 14 shows a schematic perspective exploded view of an embodiment of a loose bearing 29 of the pressurised gas storage tank 6 as mentioned above.

[0099] The loose bearing 29 comprises the second boss 25, to which a spherical bearing ring 40 and a wiper ring 41 are attached. The bearing ring 40 can slide on a cylindrical outer surface 42 of the second boss 25 to achieve length compensation along the vertical direction z or along the central axis 10 of the pressurized gas storage tank 6. Length compensation can also be achieved by twisting the second fiber composite profile 21.

[0100] The bearing ring 40 is positioned between a first bearing element 43 and a second bearing element 44. The bearing elements 43 and 44 are spherically shaped to correspond with the bearing ring 40, so that an angular misalignment can be compensated for by allowing the second boss 25, together with the bearing ring 40, to tilt relative to the two bearing elements 43 and 44.

[0101] The bearing elements 43, 44 are pinned together by means of pins 45, 46. Furthermore, the two bearing elements 43, 44 are screwed together and to the second leg section 38 of the second fiber composite profile 21 by means of fastening elements 47, 48, in particular in the form of screws. For this purpose, corresponding openings or bores are provided in the second leg section 38. The fastening elements 47, 48 can be screwed into suitable nuts 49, 50. Alternatively, the fastening elements 47, 48 can also be passed through elongated holes provided in the second leg section 38, in which case the aforementioned length compensation can be achieved by means of the elongated holes.

[0102] The Fig. Figure 15 shows a schematic sectional view of an embodiment of a fixed bearing 26 of the pressurised gas storage tank 6 as mentioned above.

[0103] The fixed bearing 26 does not allow for length compensation. The first boss 24 is part of the fixed bearing 26. The first boss 24 passes through an opening 51 provided in the web section 34 of the first fiber composite profile 20. A spacer 52 with a hexagonal recess and a plastic disc 53, which also has a hexagonal recess, are arranged between the pressurized gas storage tank 6 and the first fiber composite profile 20. Another spacer 54 with a hexagonal recess rests against the underside of the web section 34. The pressurized gas storage tank 6 is firmly connected to the first fiber composite profile 20 at the fixed bearing 26 by means of a slotted nut 55, which is screwed onto the first boss 24.

[0104] The Fig. Figure 16 shows a schematic detailed sectional view of an embodiment of a frame structure 14 of the Multiple Element Gas Container 5A as previously described. Fig. Figure 17 shows a schematic perspective detail view of the frame structure 14. The following refers to the Fig. 16 and Fig. 17 referenced simultaneously.

[0105] The frame structure 14 can also be used for the previously described embodiments of the Multiple Element Gas Container 5B, 5C, 5D, 5E, 5F. The frame structure 14 comprises the previously mentioned frame 15, which in this case has a metal profile 16 in the form of an I-beam, as previously mentioned. The metal profile 16 has a bottom flange 56, a top flange 57, and a web 58 connecting the bottom flange 56 to the top flange 57.

[0106] A penetration 59 is provided in the lower flange 56, through which a fastening element 60, in particular in the form of a screw, is passed. The fastening element 60 is also passed through a penetration 61 provided in the web section 39 of the second fiber composite profile 21. In the orientation of the Fig. 16. Washers 62 and 63 are threaded onto the fastening element 60 on both the top and bottom sides.

[0107] The fastening element 60 is screwed in place using a nut 64. This creates a force-fit connection between the metal profile 16 and the second fiber composite profile 21.

[0108] In the second leg section 38, openings 65, 66 are provided for the passage of the fastening elements 47, 48 of the loose bearing 29. Furthermore, another opening 67 is provided through which filling and / or extraction and / or valve lines can be routed. As the Fig. Figure 17 shows that a pipe 68 is guided within the second fiber composite profile 21. The pipe 68 can be guided through the opening 67. The pipe 68 can be connected to one of the bosses 24, 25.

[0109] The fiber composite profiles 20, 21 are universally applicable for various design concepts of the Multiple Element Gas Container 5A, 5B, 5C, 5D, 5E, 5F, in particular for a horizontal or vertical arrangement of the pressurized gas storage tanks 6, 7, 8, as well as for both a so-called neck mount and a so-called belly mount. Furthermore, the above specifications are transferable to other mobile applications that are subject to shock or vibration loads.

[0110] Operational vibrations and shocks in all directions, particularly in the direction of travel 4, transversely to the direction of travel 4, and along the vertical direction z, can be dampened. This improves the operational reliability of the Multiple Element Gas Container 5A, 5B, 5C, 5D, 5E, 5F. In particular, the stress on the safety-relevant pressurized gas storage tanks 6, 7, 8 is reduced. The overall weight of the Multiple Element Gas Container 5A, 5B, 5C, 5D, 5E, 5F is reduced, thus ensuring compliance with the maximum weight limit of 30.48 tons, even for 45-foot containers. Simultaneously, the weight savings reduce transport costs and the stress on the overall structure of the Multiple Element Gas Container 5A, 5B, 5C, 5D, 5E, 5F.

[0111] Typically, fiber-reinforced composite components are rather expensive and therefore not very attractive due to the manual labor involved and the materials used, especially carbon fibers. However, the use of the highly productive and automated pultrusion process for the continuous production of the fiber-reinforced composite profiles 20, 21 advantageously represents an attractive way to manufacture the fiber-reinforced composite profiles 20, 21 cost-effectively.

[0112] The Fig. Figure 18 shows another schematic side view of commercial vehicle 1. Fig. Figure 19 shows a schematic sectional view of the commercial vehicle 1 according to section line XIX-XIX of the Fig. 18. The Fig. Figure 20 shows another schematic sectional view of the commercial vehicle 1 according to section line XX-XX of the Fig. 18. The following refers to the Fig. 18, Fig. 19 to Fig. 20 referenced simultaneously.

[0113] The commercial vehicle 1, in particular the semi-trailer 3, carries a further embodiment of a Multiple Element Gas Container 5G. In contrast to the Multiple Element Gas Container 5A, the Multiple Element Gas Container 5G has, in addition to or as an alternative to the fiber composite profiles 20, 21, damping panels or damping plates 69, 70, of which in the Fig. 19 and Fig. 20 each only has one reference mark.

[0114] The damping plates 69, 70 are designed as planar components and serve as shear panels, being attached at their corners to the previously mentioned metal profiles 16, 17, 18, 19 of the frame 15. Thus, a load is also absorbed over a surface of each damping plate 69, 70, and the sandwich construction of the damping plates 69, 70 dampens shocks and vibrations.

[0115] The Fig. 21 shows the detailed view XXI according to the Fig. 19. The Fig. Figure 22 shows the sectional view XXII-XXII according to the Fig. 21. The following refers to the Fig. 21 and Fig. 22 referenced simultaneously.

[0116] The damping plates 69, 70 can be of identical construction. The damping plates 69, 70 each comprise a plate core 71 and plate coverings 72, 73 that at least partially enclose the plate core 71. As the Fig. As shown in Figure 22, the damping plates 69, 70 can be connected to the metallic frame 15 by means of fasteners 74, 75, in particular in the form of screws. The fasteners 74, 75 can pass through bores provided in the frame 15 and the damping plates 69, 70. Furthermore, the fasteners 74, 75 can be screwed to the frame 15 by means of washers 76, 77, 78, 79 and nuts 80, 81.

[0117] Although the present invention has been described using exemplary embodiments, it can be modified in many ways. REFERENCE MARK LIST 1 commercial vehicle 2 tractor 3 semi-trailers 4 Direction of travel 5A Multiple Element Gas Container 5B Multiple Element Gas Container 5C Multiple Element Gas Container 5D Multiple Element Gas Container 5E Multiple Element Gas Container 5F Multiple Element Gas Container 5G Multiple Element Gas Containers 6 pressurized gas storage tank 7 Compressed gas storage tank 8 pressurized gas storage tank 9 pressurized gas storage tank 10 Central axis 11 Central axis 12 Central axis 13 Central axis 14 Framework structure 15 frames 16 metal profiles 17 Metal profile 18 metal profiles 19 Metal profile 20 Fiber composite profile 21 Fiber composite profile 22 Compressed gas storage tank arrangement 23 tank bodies 24 Boss 25 Boss 26 fixed storage 27 fixed camps 28 fixed camps 29 Lotlager 30 Lotlager 31 Lotlager 32 Thigh section 33 Thigh section 34 Bridge section 35 Profile core 36 Profile wrapping 37th thigh section 38 Thigh section 39 Bridge section 40 bearing ring 41 Wiper ring 42 outdoor area 43 Bearing element 44 Bearing element 45 pens 46 pens 47 Fastening element 48 Fastening element 49 Mother 50 mother 51 Breakthrough 52 spacers 53 plastic disc 54 spacers 55 Nut 56 Lower belt 57 Upper chord 58 Bridge 59 Breakthrough 60 fastening element 61 Breakthrough 62 Washer 63 Washer 64 Mother 65 Breakthrough 66 Breakthrough 67 Breakthrough 68 Piping 69 Damping plate 70 damping plate 71 plate core 72 plate covering 73 Panel wrapping 74 Fastening element 75 Fastening element 76 Washer 77 Washer 78 Washer 79 Washer 80 mother 81 Mother g Direction of gravity x Longitudinal direction y transverse direction z Upward direction

Claims

Multiple Element Gas Container (5A, 5B, 5C, 5D, 5E, 5F) for transporting a gas, in particular gaseous hydrogen, comprising several pressurized gas storage tanks (6, 7, 8, 9), in particular type IV hydrogen pressure tanks, for pressurized storage of the gas, and a frame structure (14) which supports the pressurized gas storage tanks (6, 7, 8, 9), wherein the frame structure (14) comprises fiber composite profiles (20, 21) to which the pressurized gas storage tanks (6, 7, 8, 9) are coupled, wherein the fiber composite profiles (20, 21) each comprise a profile core (35) and a profile covering (36) enclosing the profile core (35), wherein the profile covering (36) has a greater stiffness than the profile core (35), and wherein the Compressed gas storage tanks (6, 7, 8, 9) are coupled to the fiber composite profiles (20, 21) in such a way that vibration and / or shock loading of the Multiple Element Gas Container (5A, 5B, 5C, 5D, 5E,5F) induces a bending stress in the fiber composite profiles (20, 21). Multiple Element Gas Container according to claim 1, characterized in that the profile core (35) comprises glass fibers, wherein the profile covering (36) comprises carbon fibers. Multiple Element Gas Container according to claim 2, characterized in that the profile core (35) and / or the profile covering (36) comprise rovings, multiaxial and / or unidirectional fiber fabrics and / or fiber woven fabrics. Multiple Element Gas Container according to one of claims 1 - 3 , characterized in that the fiber composite profiles (20, 21) are pultruded profiles. Multiple Element Gas Container according to one of claims 1 - 4 , characterized by a longitudinal direction (x), a transverse direction (y) and a vertical direction (z), wherein the longitudinal direction (x), the transverse direction (y) and the vertical direction (z) are oriented perpendicular to each other, and wherein a respective central axis (10, 11, 12, 13, 14) of the pressurised gas storage tanks (6, 7, 8, 9) is oriented along the longitudinal direction (x), along the transverse direction (y) or along the vertical direction (z). Multiple Element Gas Container according to one of claims 1 - 5, characterized in that each pressurised gas storage tank (6, 7, 8, 9) is coupled to a first fiber composite profile (20) by means of a fixed bearing (26, 27, 28) and to a second fiber composite profile (21) by means of a loose bearing (29, 30, 31) or vice versa. Multiple Element Gas Container according to claim 6, characterized in that the fixed bearing (26, 27, 28) is arranged above or below the loose bearing (29, 30, 31) when viewed along a direction of gravity (g). Multiple Element Gas Container according to claim 6 or 7, characterized in that the first fiber composite profile (20) has a breakthrough (51) through which a boss (24) of the respective pressurised gas storage tank (6, 7, 8, 9) is at least partially passed through and connected to the first fiber composite profile (20) to form the fixed bearing (26, 27, 28). Multiple Element Gas Container according to claim 8, characterized in that the first fiber composite profile (20) has a U-shaped profile cross-section with a first leg section (32), a second leg section (33) and a web section (34) connecting the first leg section (32) with the second leg section (33), wherein the opening (51) breaks through the web section (34). Multiple Element Gas Container according to claim 9, characterized in that the first fiber composite profile (20) is arranged such that the boss (24) is arranged at least sectionally between the first leg section (32) and the second leg section (33), wherein the first leg section (32) and the second leg section (33) point away from the pressurized gas storage tanks (6, 7, 8, 9). Multiple Element Gas Container according to one of claims 6 - 10 , characterized in that the loose bearing (29, 30, 31) has a bearing element (43, 44) which is connected to the second fiber composite profile (21). Multiple Element Gas Container according to claim 11, characterized in that the second fiber composite profile (21) has a U-shaped profile cross-section with a first leg section (37), a second leg section (38) and a web section (39) connecting the first leg section (37) with the second leg section (38), wherein the bearing element (43, 44) is connected to the first leg section (37) or to the second leg section (38). Multiple Element Gas Container according to claim 12, characterized in that the second fiber composite profile (21) is arranged such that the first leg section (37) and the second leg section (38) point away from the pressurised gas storage tanks (6, 7, 8, 9). Multiple Element Gas Container according to one of claims 1 - 13 , characterized in that the frame structure (14) has a frame (15) which is constructed from metal profiles (16, 17, 18, 19), wherein the frame (15) supports the fiber composite profiles (20, 21). Multiple Element Gas Container (5G) for transporting a gas, in particular gaseous hydrogen, comprising several pressurized gas storage tanks (6, 7, 8, 9), in particular type IV hydrogen pressure tanks, for pressurized storage of the gas, and a frame structure (14) which supports the pressurized gas storage tanks (6, 7, 8, 9), wherein damping plates (69, 70) are attached to the frame structure (14), wherein the damping plates (69, 70) each have a plate core (71) and a plate covering (72, 73) enclosing the plate core (71), and wherein the plate covering (72, 73) has a greater stiffness than the plate core (71).

Citation Information

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